Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Cheyenne, WY

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FNUS55 KCYS 181010
FWFCYS

Fire Weather Planning Forecast for Southeast Wyoming/Western Nebraska
National Weather Service Cheyenne WY
310 AM MST Sun Feb 18 2018

...STRONG WINDS THIS MORNING ACROSS SOUTHEAST WYOMING. FOLLOWED BY
HEAVY SNOW BEHIND AN ARCTIC FRONT TONIGHT INTO MONDAY NIGHT...

.DISCUSSION...
Strong winds this morning will ease across southeast Wyoming by
early afternoon as an arctic front moves into the area. Widespread
wind gusts in excess of 60 mph this morning, turning north and
northeast with gusts to 20-25 mph this afternoon. Widespread snow
event to unfold from north to south over the next 36 hours behind
the front with very cold temperatures moving in behind the front
as well. Significant snow accumulations across entire area of
southeast Wyoming and Nebraska Panhandle before snow ends Tuesday
morning. No fire weather concerns expected.

WYZ301-182315-
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
310 AM MST Sun Feb 18 2018

...HIGH WIND WARNING IN EFFECT UNTIL 9 AM MST THIS MORNING...
...WINTER STORM WARNING IN EFFECT FROM 9 AM THIS MORNING TO
MIDNIGHT MST MONDAY NIGHT...

.TODAY...
Sky/weather.........Mostly cloudy. Chance of snow until 1100, then
                    snow. Patchy fog after 1700. Snow accumulation
                    up to 3 inches.
Max temperature.....32-42.
   24 hr trend......15 degrees cooler.
Min humidity........42-48 percent.
   24 hr trend......19 percent wetter.
20-foot winds.......Northwest around 15 mph with gusts to around 45
                    mph shifting to the north with higher gusts in
                    the afternoon.
LAL.................1.
Chc of wetting rain.60 percent.
Transport winds.....West around 25 mph becoming north around 15 mph
                    in the afternoon.
Mixing height.......500-1000 ft AGL increasing to 1700-3700 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (16500-25900 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Patchy blowing snow until 2300. patchy
                    fog. Snow. Snow accumulation of 3 to 5 inches.
Min temperature.....2 below to 3 above zero.
   24 hr trend......33 degrees cooler.
Max humidity........100 percent.
   24 hr trend......39 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast around 10 mph. Gusts up to 25 mph in
                    the evening.
LAL.................1.
Chc of wetting rain.100 percent.
Transport winds.....Northeast around 15 mph.
Mixing height.......1900-3000 ft AGL.
Smoke dispersal.....Poor (25500-28100 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.WASHINGTONS BIRTHDAY...
Sky/weather.........Cloudy. Snow until 1700, then snow likely. Snow
                    accumulation of 2 to 3 inches.
Max temperature.....2-7.
   24 hr trend......28 degrees cooler.
Min humidity........78-84 percent.
   24 hr trend......43 percent wetter.
20-foot winds.......Northeast around 10 mph.
LAL.................1.
Chc of wetting rain.90 percent.
Transport winds.....East 10 to 15 mph.
Mixing height.......1700-3700 ft AGL.
Smoke dispersal.....Poor (24000-33400 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...Colder. Mostly cloudy with chance of snow. Lows around
14 below. Highs around 5. Northwest winds around 5 mph.
.WEDNESDAY...Not as cold. Mostly clear. Lows around 15 below.
Highs around 17. Southwest winds around 5 mph.
.THURSDAY...Mostly clear. Lows around 1. Highs in the upper 20s.
Southwest winds around 10 mph.
.FRIDAY...Partly cloudy. Lows around 6. Highs around 30.
.SATURDAY...Partly cloudy. Lows around 9. Highs in the lower 30s.

$$

WYZ302-182315-
North Laramie Range/Medicine Bow NF-
310 AM MST Sun Feb 18 2018

...HIGH WIND WARNING IN EFFECT UNTIL 9 AM MST THIS MORNING...
...WINTER STORM WARNING IN EFFECT FROM 9 AM THIS MORNING TO
MIDNIGHT MST MONDAY NIGHT...

.TODAY...
Sky/weather.........Partly cloudy until 0900, then mostly cloudy.
                    Chance of snow until 1100, then snow. Patchy
                    fog after 1700. Snow accumulation up to 2
                    inches.
Max temperature.....33-43.
   24 hr trend......4 degrees warmer.
Min humidity........42-48 percent.
   24 hr trend......21 percent wetter.
20-foot winds.......Windy. West around 30 mph with gusts to around
                    65 mph decreasing to around 20 mph with gusts
                    to around 45 mph in the afternoon.
LAL.................1.
Chc of wetting rain.45 percent.
Transport winds.....West around 50 mph decreasing to around 35 mph
                    in the afternoon.
Mixing height.......700-1200 ft AGL increasing to 2400-4200 ft AGL
                    in the afternoon.
Smoke dispersal.....Fair (42300 knot-ft) increasing to very good
                    (107200 knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Patchy fog. Snow. Snow accumulation of
                    3 to 8 inches.
Min temperature.....1 below to 4 above zero.
   24 hr trend......28 degrees cooler.
Max humidity........100 percent.
   24 hr trend......42 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast around 10 mph.
LAL.................1.
Chc of wetting rain.100 percent.
Transport winds.....East 10 to 15 mph.
Mixing height.......800-2100 ft AGL.
Smoke dispersal.....Poor (12800-22900 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.WASHINGTONS BIRTHDAY...
Sky/weather.........Cloudy. Patchy blowing snow until 1400. Snow.
                    Snow accumulation of 3 to 5 inches.
Max temperature.....4-9.
   24 hr trend......35 degrees cooler.
Min humidity........71-77 percent.
   24 hr trend......19 percent wetter.
20-foot winds.......Northeast around 10 mph and gusty.
LAL.................1.
Chc of wetting rain.95 percent.
Transport winds.....East 10 to 15 mph.
Mixing height.......1100-2700 ft AGL.
Smoke dispersal.....Poor (19300-19700 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...Colder. Mostly cloudy with chance of snow. Lows around
10 below. Highs around 6. Northwest winds around 5 mph.
.WEDNESDAY...Mostly clear. Lows around 8 below. Highs around 15.
Southwest winds around 10 mph.
.THURSDAY...Mostly clear. Lows around 4. Highs in the mid 20s.
Southwest winds around 10 mph.
.FRIDAY...Partly cloudy. Lows around 9. Highs in the upper 20s.
.SATURDAY...Partly cloudy. Lows around 12. Highs in the upper
20s.

$$

WYZ303-182315-
Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains-
310 AM MST Sun Feb 18 2018

...HIGH WIND WARNING IN EFFECT UNTIL 1 PM MST THIS AFTERNOON...
...WINTER STORM WARNING IN EFFECT FROM 9 AM THIS MORNING TO
MIDNIGHT MST MONDAY NIGHT...

.TODAY...
Sky/weather.........Partly cloudy until 0900, then mostly cloudy.
                    Chance of snow until 1100, then snow. Patchy
                    fog and blowing snow after 1700. Snow
                    accumulation up to 1 inch.
Max temperature.....37-43.
   24 hr trend......1 degree warmer.
Min humidity........41-47 percent.
   24 hr trend......16 percent wetter.
20-foot winds.......Windy. Southwest 25 to 30 mph. Gusts up to 65
                    mph decreasing to 55 mph in the afternoon.
LAL.................1.
Chc of wetting rain.40 percent.
Transport winds.....Southwest around 45 mph.
Mixing height.......900-1400 ft AGL increasing to 3100-5100 ft AGL
                    in the afternoon.
Smoke dispersal.....Fair (42300 knot-ft) increasing to excellent
                    (163300 knot-ft) in the afternoon.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Mostly cloudy. Patchy blowing snow until 2200.
                    patchy fog. patchy blowing snow after 0400.
                    Snow. Snow accumulation of 2 to 7 inches.
Min temperature.....Zero to 10 above zero.
   24 hr trend......30 degrees cooler.
Max humidity........100 percent.
   24 hr trend......42 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West around 10 mph with gusts to around 35 mph
                    shifting to the north after midnight.
LAL.................1.
Chc of wetting rain.95 percent.
Transport winds.....West around 25 mph becoming north around 15 mph
                    after midnight.
Mixing height.......900-2900 ft AGL.
Smoke dispersal.....Poor to fair (19900-53800 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.WASHINGTONS BIRTHDAY...
Sky/weather.........Cloudy. Patchy blowing snow. Snow until 1700.
                    snow likely after 1700. Snow accumulation of 3
                    to 4 inches.
Max temperature.....6-16.
   24 hr trend......33 degrees cooler.
Min humidity........64-70 percent.
   24 hr trend......27 percent wetter.
20-foot winds.......Northeast 10 to 15 mph with higher gusts.
LAL.................1.
Chc of wetting rain.95 percent.
Transport winds.....Northeast around 20 mph.
Mixing height.......900-2900 ft AGL.
Smoke dispersal.....Poor (25900-39300 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...Colder. Mostly cloudy with chance of snow. Lows around
9 below. Highs around 9. Northwest winds around 5 mph.
.WEDNESDAY...Partly cloudy. Lows around 8 below. Highs around 16.
Southwest winds around 10 mph.
.THURSDAY...Mostly clear. Lows around 3. Highs in the mid 20s.
Southwest winds around 10 mph.
.FRIDAY...Partly cloudy with slight chance of snow showers. Lows
around 11. Highs in the upper 20s.
.SATURDAY...Partly cloudy. Lows around 13. Highs around 30.

$$

WYZ304-182315-
Southwest Carbon County-
310 AM MST Sun Feb 18 2018

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT MST MONDAY NIGHT...

.TODAY...
Sky/weather.........Mostly cloudy. Snow likely until 1200, then
                    snow and chance of rain. Patchy fog and blowing
                    snow after 1700. Little or no snow
                    accumulation.
Max temperature.....39-44.
   24 hr trend......Unchanged.
Min humidity........40-46 percent.
   24 hr trend......6 percent wetter.
20-foot winds.......Breezy. Southwest 20 to 25 mph with gusts to
                    around 50 mph.
LAL.................1.
Chc of wetting rain.20 percent.
Transport winds.....Southwest around 30 mph increasing to around 40
                    mph in the afternoon.
Mixing height.......800-1300 ft AGL increasing to 3700-4700 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (25600 knot-ft) increasing to excellent
                    (151500 knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Patchy blowing snow until 2100. patchy
                    fog. Snow. Snow accumulation of 2 to 5 inches.
Min temperature.....6-16.
   24 hr trend......13 degrees cooler.
Max humidity........100 percent.
   24 hr trend......29 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest around 15 mph and gusty becoming west
                    around 5 mph after midnight.
LAL.................1.
Chc of wetting rain.90 percent.
Transport winds.....Southwest 20 to 25 mph.
Mixing height.......900-2900 ft AGL.
Smoke dispersal.....Poor to fair (37600-40200 knot-ft).
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.WASHINGTONS BIRTHDAY...
Sky/weather.........Cloudy. Snow until 1700. snow likely after
                    1700. Patchy blowing snow after 0900. Snow
                    accumulation of 2 to 3 inches.
Max temperature.....15-25.
   24 hr trend......23 degrees cooler.
Min humidity........50-56 percent.
   24 hr trend......Unchanged.
20-foot winds.......North 10 to 15 mph with higher gusts.
LAL.................1.
Chc of wetting rain.90 percent.
Transport winds.....Northwest around 25 mph shifting to the north
                    in the afternoon.
Mixing height.......1600-3600 ft AGL.
Smoke dispersal.....Poor to good (37400-65200 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...Colder. Cloudy with snow likely. Lows around 9 below.
Highs around 16. Northwest winds around 10 mph.
.WEDNESDAY...Partly cloudy. Lows around 10 below. Highs around
20. Southwest winds around 5 mph.
.THURSDAY...Partly cloudy. Lows near zero. Highs in the upper
20s. Winds generally less than 10 mph.
.FRIDAY...Partly cloudy. Lows around 9. Highs in the lower 30s.
.SATURDAY...Partly cloudy. Lows around 12. Highs in the lower
30s.

$$

WYZ305-182315-
Sierra Madre Range/Medicine Bow NF-
310 AM MST Sun Feb 18 2018

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT MST MONDAY NIGHT...

.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of snow until
                    1100, then snow likely until 1700, then snow.
                    Patchy fog and blowing snow after 1700. Snow
                    accumulation up to 1 inch.
Max temperature.....32-40.
   24 hr trend......3 degrees warmer.
Min humidity........44-50 percent.
   24 hr trend......13 percent wetter.
20-foot winds.......Southwest around 20 mph. Gusts up to 55 mph
                    decreasing to 40 mph in the afternoon.
LAL.................1.
Chc of wetting rain.25 percent.
Transport winds.....Southwest around 40 mph increasing to around 50
                    mph in the afternoon.
Mixing height.......800-1300 ft AGL increasing to 3400-4800 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (36900 knot-ft) increasing to excellent
                    (172900 knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Patchy blowing snow until 2400. patchy
                    fog. patchy blowing snow after 0500. Snow. Snow
                    accumulation of 2 to 5 inches.
Min temperature.....18-23.
   24 hr trend......4 degrees cooler.
Max humidity........89-95 percent.
   24 hr trend......32 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest 10 to 15 mph. Gusts up to 40 mph
                    decreasing to 25 mph after midnight.
LAL.................1.
Chc of wetting rain.85 percent.
Transport winds.....Southwest around 40 mph decreasing to around 30
                    mph after midnight.
Mixing height.......900-2100 ft AGL.
Smoke dispersal.....Fair (44200-44500 knot-ft).
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.WASHINGTONS BIRTHDAY...
Sky/weather.........Cloudy. Patchy blowing snow until 1100. Snow
                    until 1700, then snow likely. Snow accumulation
                    of 2 to 5 inches.
Max temperature.....21-27.
   24 hr trend......17 degrees cooler.
Min humidity........53-59 percent.
   24 hr trend......4 percent wetter.
20-foot winds.......Southwest around 10 mph shifting to the west in
                    the afternoon. Gusts up to 25 mph.
LAL.................1.
Chc of wetting rain.85 percent.
Transport winds.....Southwest around 40 mph decreasing to around 25
                    mph in the afternoon.
Mixing height.......3200-5200 ft AGL.
Smoke dispersal.....Very good (113500-124500 knot-ft).
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...Colder. Cloudy with chance of snow. Lows around
2 below. Highs around 12. West winds around 5 mph.
.WEDNESDAY...Partly cloudy. Lows around 4 below. Highs around 16.
Southwest winds around 5 mph.
.THURSDAY...Partly cloudy. Slight chance of snow showers. Lows
around 3. Highs in the mid 20s. Southwest winds around 10 mph.
.FRIDAY...Mostly cloudy. Slight chance of snow showers. Lows
around 12. Highs in the upper 20s.
.SATURDAY...Mostly cloudy with slight chance of snow showers.
Lows around 13. Highs in the upper 20s.

$$

WYZ306-182315-
Upper North Platte River Basin-
310 AM MST Sun Feb 18 2018

...HIGH WIND WARNING IN EFFECT UNTIL 1 PM MST THIS AFTERNOON...
...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT MST MONDAY NIGHT...

.TODAY...
Sky/weather.........Partly cloudy until 0900, then mostly cloudy.
                    Slight chance of snow until 1100, then chance
                    of snow until 1700, then snow. Patchy fog and
                    blowing snow after 1700. Little or no snow
                    accumulation.
Max temperature.....39-44.
   24 hr trend......2 degrees warmer.
Min humidity........39-45 percent.
   24 hr trend......16 percent wetter.
20-foot winds.......Breezy. Southwest around 25 mph with gusts to
                    around 50 mph.
LAL.................1.
Chc of wetting rain.15 percent.
Transport winds.....Southwest 40 to 45 mph.
Mixing height.......1100-1600 ft AGL increasing to 3900-4700 ft AGL
                    in the afternoon.
Smoke dispersal.....Fair (41600 knot-ft) increasing to excellent
                    (171400 knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Patchy blowing snow until 2300. patchy
                    fog. Snow. Snow accumulation of 2 to 4 inches.
Min temperature.....13-21.
   24 hr trend......12 degrees cooler.
Max humidity........93-99 percent.
   24 hr trend......37 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West 10 to 15 mph. Gusts up to 35 mph
                    decreasing to 20 mph after midnight.
LAL.................1.
Chc of wetting rain.90 percent.
Transport winds.....Southwest around 30 mph decreasing to around 20
                    mph after midnight.
Mixing height.......1600-2800 ft AGL.
Smoke dispersal.....Fair to good (43300-60700 knot-ft).
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.WASHINGTONS BIRTHDAY...
Sky/weather.........Cloudy. Snow until 1700, then snow likely. Snow
                    accumulation of 2 to 3 inches.
Max temperature.....20-26.
   24 hr trend......18 degrees cooler.
Min humidity........54-60 percent.
   24 hr trend......15 percent wetter.
20-foot winds.......Northwest around 10 mph and gusty.
LAL.................1.
Chc of wetting rain.90 percent.
Transport winds.....Southwest around 20 mph shifting to the
                    northwest in the afternoon.
Mixing height.......2400-4400 ft AGL.
Smoke dispersal.....Fair to good (48400-68800 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...Colder. Cloudy with chance of snow. Lows around
4 below. Highs around 14. Northwest winds around 5 mph.
.WEDNESDAY...Partly cloudy. Lows around 6 below. Highs around 18.
Southwest winds around 10 mph.
.THURSDAY...Partly cloudy. Lows around 4. Highs in the upper 20s.
Southwest winds around 10 mph.
.FRIDAY...Partly cloudy. Slight chance of snow showers. Lows
around 13. Highs in the lower 30s.
.SATURDAY...Partly cloudy. Slight chance of snow showers. Lows
around 14. Highs in the lower 30s.

$$

WYZ307-182315-
Snowy Range/Medicine Bow NF-
310 AM MST Sun Feb 18 2018

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT MST MONDAY NIGHT...

.TODAY...
Sky/weather.........Partly cloudy until 1500, then mostly cloudy.
                    Slight chance of snow until 1100, then chance
                    of snow until 1700, then snow. Areas of blowing
                    snow and patchy fog after 1700. Snow
                    accumulation up to 1 inch.
Max temperature.....31-39.
   24 hr trend......2 degrees warmer.
Min humidity........43-49 percent.
   24 hr trend......20 percent wetter.
20-foot winds.......Windy. Southwest 25 to 30 mph. Gusts up to 70
                    mph decreasing to 55 mph in the afternoon.
LAL.................1.
Chc of wetting rain.15 percent.
Transport winds.....Southwest 50 to 55 mph.
Mixing height.......800-1400 ft AGL increasing to 3200-4600 ft AGL
                    in the afternoon.
Smoke dispersal.....Fair (47800 knot-ft) increasing to excellent
                    (183200 knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Mostly cloudy. Areas of blowing snow until
                    2000. patchy fog. patchy blowing snow after
                    2000 until 0200. Snow. Snow accumulation of 1
                    to 5 inches.
Min temperature.....14-20.
   24 hr trend......8 degrees cooler.
Max humidity........92-98 percent.
   24 hr trend......38 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest 10 to 15 mph. Gusts up to 45 mph
                    decreasing to 25 mph after midnight.
LAL.................1.
Chc of wetting rain.80 percent.
Transport winds.....Southwest 35 to 40 mph.
Mixing height.......1200-3200 ft AGL.
Smoke dispersal.....Fair to good (55700-73100 knot-ft).
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.WASHINGTONS BIRTHDAY...
Sky/weather.........Cloudy. Patchy blowing snow until 0900. Snow.
                    Snow accumulation of 2 to 6 inches.
Max temperature.....19-25.
   24 hr trend......18 degrees cooler.
Min humidity........60-66 percent.
   24 hr trend......19 percent wetter.
20-foot winds.......Southwest 5 to 10 mph. Gusts up to 25 mph
                    decreasing to 15 mph in the afternoon.
LAL.................1.
Chc of wetting rain.90 percent.
Transport winds.....Southwest 25 to 30 mph.
Mixing height.......2600-4600 ft AGL.
Smoke dispersal.....Good to very good (84400-106700 knot-ft).
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...Colder. Cloudy with snow. Lows around 7 below. Highs
around 10. West winds around 5 mph.
.WEDNESDAY...Partly cloudy. Lows around 8 below. Highs around 14.
Southwest winds around 10 mph.
.THURSDAY...Mostly clear. Slight chance of snow showers. Lows
around 2. Highs in the lower 20s. Southwest winds around 10 mph.
.FRIDAY...Partly cloudy with slight chance of snow showers. Lows
around 10. Highs in the mid 20s.
.SATURDAY...Partly cloudy with slight chance of snow showers.
Lows around 11. Highs in the mid 20s.

$$

WYZ308-182315-
Laramie Valley/Shirley Basin-
310 AM MST Sun Feb 18 2018

...HIGH WIND WARNING IN EFFECT UNTIL 1 PM MST THIS AFTERNOON...
...WINTER STORM WARNING IN EFFECT FROM 9 AM THIS MORNING TO
MIDNIGHT MST MONDAY NIGHT...

.TODAY...
Sky/weather.........Partly cloudy until 1500, then mostly cloudy.
                    Chance of snow until 1700, then snow. Patchy
                    fog and blowing snow after 1700. Snow
                    accumulation up to 1 inch.
Max temperature.....39-45.
   24 hr trend......4 degrees warmer.
Min humidity........38-44 percent.
   24 hr trend......4 percent wetter.
20-foot winds.......Windy. Southwest around 30 mph with gusts to
                    around 65 mph decreasing to around 20 mph with
                    gusts to around 45 mph in the afternoon.
LAL.................1.
Chc of wetting rain.20 percent.
Transport winds.....Southwest 40 to 45 mph.
Mixing height.......1000-1500 ft AGL increasing to 3400-4900 ft AGL
                    in the afternoon.
Smoke dispersal.....Fair (44600 knot-ft) increasing to excellent
                    (164400 knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Mostly cloudy. Patchy blowing snow until 1900.
                    patchy fog. patchy blowing snow after 0500.
                    Snow. Snow accumulation of 1 to 6 inches.
Min temperature.....4-14.
   24 hr trend......26 degrees cooler.
Max humidity........100 percent.
   24 hr trend......45 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest around 10 mph shifting to the east
                    after midnight. Gusts up to 30 mph.
LAL.................1.
Chc of wetting rain.75 percent.
Transport winds.....Southwest around 20 mph shifting to the
                    southeast after midnight.
Mixing height.......1000-2700 ft AGL.
Smoke dispersal.....Poor (33000-34400 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.WASHINGTONS BIRTHDAY...
Sky/weather.........Cloudy. Patchy blowing snow. Snow until 1700.
                    snow likely after 1700. Snow accumulation of 2
                    to 4 inches.
Max temperature.....10-20.
   24 hr trend......33 degrees cooler.
Min humidity........64-70 percent.
   24 hr trend......31 percent wetter.
20-foot winds.......East 10 to 15 mph with higher gusts.
LAL.................1.
Chc of wetting rain.90 percent.
Transport winds.....East 15 to 20 mph.
Mixing height.......1200-2600 ft AGL.
Smoke dispersal.....Poor (32000-32200 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...Colder. Mostly cloudy with snow likely. Lows around
8 below. Highs around 9. North winds around 5 mph.
.WEDNESDAY...Mostly clear. Lows around 10 below. Highs around 16.
Southwest winds around 10 mph.
.THURSDAY...Mostly clear. Lows around 1. Highs in the mid 20s.
Southwest winds around 10 mph.
.FRIDAY...Partly cloudy. Lows around 9. Highs around 30.
.SATURDAY...Partly cloudy. Lows around 12. Highs in the lower
30s.

$$

WYZ309-182315-
South Laramie Range/Medicine Bow NF-
310 AM MST Sun Feb 18 2018

...HIGH WIND WARNING IN EFFECT UNTIL 1 PM MST THIS AFTERNOON...
...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT MST MONDAY NIGHT...

.TODAY...
Sky/weather.........Partly cloudy. Chance of rain and snow after
                    1100 until 1700, then snow likely and rain.
                    Patchy fog and blowing snow after 1700. Little
                    or no snow accumulation.
Max temperature.....43-51.
   24 hr trend......5 degrees warmer.
Min humidity........28-34 percent.
   24 hr trend......10 percent wetter.
20-foot winds.......Windy. West 25 to 30 mph. Gusts up to 60 mph
                    decreasing to 50 mph in the afternoon.
LAL.................1.
Chc of wetting rain.5 percent.
Transport winds.....West around 40 mph.
Mixing height.......900-1500 ft AGL increasing to 4800-6800 ft AGL
                    in the afternoon.
Smoke dispersal.....Fair (42000 knot-ft) increasing to excellent
                    (204500 knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Mostly cloudy. Patchy blowing snow until 2000.
                    patchy fog. patchy blowing snow after 0200.
                    Snow. Snow accumulation of 1 to 3 inches.
Min temperature.....4-9.
   24 hr trend......25 degrees cooler.
Max humidity........100 percent.
   24 hr trend......49 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......South around 10 mph and gusty shifting to the
                    east after midnight.
LAL.................1.
Chc of wetting rain.65 percent.
Transport winds.....Southwest around 20 mph shifting to the east
                    after midnight.
Mixing height.......1100-2900 ft AGL.
Smoke dispersal.....Poor to fair (28700-40900 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.WASHINGTONS BIRTHDAY...
Sky/weather.........Cloudy. Patchy blowing snow. Snow. Snow
                    accumulation of 3 to 4 inches.
Max temperature.....8-14.
   24 hr trend......42 degrees cooler.
Min humidity........71-77 percent.
   24 hr trend......49 percent wetter.
20-foot winds.......East 10 to 15 mph with higher gusts.
LAL.................1.
Chc of wetting rain.85 percent.
Transport winds.....East around 15 mph.
Mixing height.......900-2800 ft AGL.
Smoke dispersal.....Poor (19500-26100 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...Much colder. Patchy blowing snow in the evening. Snow.
Lows around 10 below. Highs around 8. North winds around 5 mph.
.WEDNESDAY...Not as cold. Mostly clear. Lows around 9 below.
Highs around 19. Southwest winds around 10 mph.
.THURSDAY...Mostly clear. Lows around 4. Highs in the upper 20s.
Southwest winds around 10 mph.
.FRIDAY...Partly cloudy. Lows around 11. Highs in the lower 30s.
.SATURDAY...Partly cloudy. Lows around 15. Highs in the lower
30s.

$$

WYZ310-182315-
Platte/Goshen/Central and Eastern Laramie-
310 AM MST Sun Feb 18 2018

...HIGH WIND WARNING IN EFFECT UNTIL 1 PM MST THIS AFTERNOON...
...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT MST MONDAY NIGHT...

.TODAY...
Sky/weather.........Partly cloudy until 1500, then mostly cloudy.
                    Chance of rain and snow until 1200. snow with
                    rain likely after 1200. Patchy fog after 1700.
                    Little or no snow accumulation.
Max temperature.....49-57.
   24 hr trend......4 degrees warmer.
Min humidity........27-33 percent.
   24 hr trend......12 percent wetter.
20-foot winds.......West 15 to 20 mph. Gusts up to 50 mph
                    decreasing to 30 mph in the afternoon.
LAL.................1.
Chc of wetting rain.5 percent.
Transport winds.....Southwest around 25 mph.
Mixing height.......500-1100 ft AGL increasing to 6300-8300 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (18500 knot-ft) increasing to excellent
                    (154700 knot-ft) in the afternoon.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Mostly cloudy. Patchy fog. patchy blowing snow
                    after 2000 until 2100. Snow. Snow accumulation
                    up to 3 inches.
Min temperature.....2-7.
   24 hr trend......29 degrees cooler.
Max humidity........100 percent.
   24 hr trend......44 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast around 10 mph and gusty.
LAL.................1.
Chc of wetting rain.55 percent.
Transport winds.....Northeast around 15 mph.
Mixing height.......900-2900 ft AGL.
Smoke dispersal.....Poor (20800-25100 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.WASHINGTONS BIRTHDAY...
Sky/weather.........Cloudy. Snow. Patchy blowing snow after 1700.
                    Snow accumulation of 2 to 3 inches.
Max temperature.....6-11.
   24 hr trend......44 degrees cooler.
Min humidity........74-80 percent.
   24 hr trend......47 percent wetter.
20-foot winds.......Northeast around 10 mph and gusty.
LAL.................1.
Chc of wetting rain.70 percent.
Transport winds.....East around 15 mph.
Mixing height.......1800-3000 ft AGL.
Smoke dispersal.....Poor (25600-28000 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...Much colder. Mostly cloudy with snow. Lows around
10 below. Highs around 8. North winds around 5 mph.
.WEDNESDAY...Not as cold. Mostly clear. Lows around 10 below.
Highs in the lower 20s. Southwest winds around 5 mph.
.THURSDAY...Mostly clear. Lows around 5. Highs in the lower 30s.
Winds generally less than 10 mph.
.FRIDAY...Partly cloudy. Lows around 11. Highs in the mid 30s.
.SATURDAY...Partly cloudy. Lows around 15. Highs in the upper
30s.

$$

NEZ311-182315-
Pine Ridge/Nebraska National Forest/Oglala National Grasslands-
310 AM MST Sun Feb 18 2018

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT MST MONDAY NIGHT...

.TODAY...
Sky/weather.........Cloudy. Chance of snow until 1200. chance of
                    rain. snow after 1200. Patchy fog and blowing
                    snow after 1700. Snow accumulation up to 1
                    inch.
Max temperature.....36-44.
   24 hr trend......2 degrees warmer.
Min humidity........47-53 percent.
   24 hr trend......6 percent wetter.
20-foot winds.......West around 15 mph with gusts to around 35 mph
                    shifting to the north with higher gusts in the
                    afternoon.
LAL.................1.
Chc of wetting rain.20 percent.
Transport winds.....West around 20 mph shifting to the northeast in
                    the afternoon.
Mixing height.......500 ft AGL increasing to 700-2600 ft AGL in the
                    afternoon.
Smoke dispersal.....Poor (10300-14600 knot-ft).
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Patchy fog and blowing snow. Snow. Snow
                    accumulation of 2 to 4 inches.
Min temperature.....3 below to 2 above zero.
   24 hr trend......34 degrees cooler.
Max humidity........94-100 percent.
   24 hr trend......42 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast around 15 mph. Gusts up to 30 mph
                    decreasing to 20 mph after midnight.
LAL.................1.
Chc of wetting rain.65 percent.
Transport winds.....Northeast 20 to 25 mph.
Mixing height.......1600-2900 ft AGL.
Smoke dispersal.....Poor to fair (38500-46800 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.WASHINGTONS BIRTHDAY...
Sky/weather.........Cloudy. Patchy blowing snow until 0900. patchy
                    blowing snow after 1100 until 1400. Snow. Snow
                    accumulation of 2 to 3 inches.
Max temperature.....1-6.
   24 hr trend......40 degrees cooler.
Min humidity........79-85 percent.
   24 hr trend......35 percent wetter.
20-foot winds.......Northeast around 10 mph and gusty.
LAL.................1.
Chc of wetting rain.70 percent.
Transport winds.....Northeast 15 to 20 mph.
Mixing height.......1700-2700 ft AGL.
Smoke dispersal.....Poor (31000-35200 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...Colder, snow. Lows around 12 below. Highs around 6.
North winds around 5 mph.
.WEDNESDAY...Not as cold. Mostly clear. Lows around 16 below.
Highs around 19. Southwest winds around 5 mph.
.THURSDAY...Mostly clear. Lows near zero. Highs in the upper 20s.
Winds generally less than 10 mph.
.FRIDAY...Partly cloudy. Lows around 7. Highs in the lower 30s.
.SATURDAY...Partly cloudy with slight chance of snow showers.
Lows around 10. Highs in the mid 30s.

$$

NEZ312-182315-
Box Butte/South Sioux-
310 AM MST Sun Feb 18 2018

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT MST MONDAY NIGHT...

.TODAY...
Sky/weather.........Mostly cloudy. Chance of rain and snow.
Max temperature.....48-54.
   24 hr trend......6 degrees warmer.
Min humidity........31-37 percent.
   24 hr trend......13 percent wetter.
20-foot winds.......Southwest around 15 mph shifting to the
                    northwest in the afternoon. Gusts up to 30 mph.
LAL.................1.
Chc of wetting rain.5 percent.
Transport winds.....Southwest 20 to 25 mph.
Mixing height.......600 ft AGL increasing to 4600-6600 ft AGL in
                    the afternoon.
Smoke dispersal.....Poor (12800 knot-ft) increasing to good (81500
                    knot-ft) in the afternoon.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Patchy fog. patchy blowing snow after
                    1900. Chance of snow until 0500. snow likely
                    after 0500. Snow accumulation up to 3 inches.
Min temperature.....1-6.
   24 hr trend......28 degrees cooler.
Max humidity........100 percent.
   24 hr trend......44 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast around 15 mph and gusty.
LAL.................1.
Chc of wetting rain.25 percent.
Transport winds.....Northeast around 20 mph.
Mixing height.......1200-2800 ft AGL.
Smoke dispersal.....Poor to fair (26100-41800 knot-ft).
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.WASHINGTONS BIRTHDAY...
Sky/weather.........Cloudy. Patchy blowing snow until 0800. Snow
                    likely until 1700, then snow. Snow accumulation
                    of 1 to 3 inches.
Max temperature.....6-11.
   24 hr trend......47 degrees cooler.
Min humidity........64-70 percent.
   24 hr trend......32 percent wetter.
20-foot winds.......Northeast around 10 mph and gusty.
LAL.................1.
Chc of wetting rain.50 percent.
Transport winds.....Northeast around 15 mph.
Mixing height.......1800-2800 ft AGL.
Smoke dispersal.....Poor (30200-33500 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...Much colder. Snow. Lows around 8 below. Highs around
9. North winds around 5 mph.
.WEDNESDAY...Not as cold. Mostly clear. Lows around 11 below.
Highs in the lower 20s. Southwest winds around 5 mph.
.THURSDAY...Mostly clear. Lows around 4. Highs in the lower 30s.
Winds generally less than 10 mph.
.FRIDAY...Partly cloudy with slight chance of snow showers. Lows
around 11. Highs in the mid 30s.
.SATURDAY...Partly cloudy. Slight chance of snow showers. Lows
around 13. Highs in the upper 30s.

$$

NEZ313-182315-
Scotts Bluff National Monument/Wildcat Hills-
310 AM MST Sun Feb 18 2018

.TODAY...
Sky/weather.........Partly cloudy until 1200, then mostly cloudy.
                    Chance of rain after 1700.
Max temperature.....57-62.
   24 hr trend......6 degrees warmer.
Min humidity........20-26 percent.
   24 hr trend......5 percent drier.
20-foot winds.......Southwest around 10 mph with higher gusts.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph.
Mixing height.......400-900 ft AGL increasing to 5500-7500 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (11500 knot-ft) increasing to very good
                    (118600 knot-ft) in the afternoon.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of rain until
                    1900. chance of snow. Patchy fog and blowing
                    snow after 2000 until 2200. patchy fog after
                    0500.
Min temperature.....6-11.
   24 hr trend......23 degrees cooler.
Max humidity........94-100 percent.
   24 hr trend......44 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast around 15 mph and gusty.
LAL.................1.
Chc of wetting rain.10 percent.
Transport winds.....Northeast 15 to 20 mph.
Mixing height.......600-2600 ft AGL.
Smoke dispersal.....Poor (15600-31600 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.WASHINGTONS BIRTHDAY...
Sky/weather.........Cloudy. Chance of snow until 1100, then snow
                    likely until 1700, then snow. Patchy blowing
                    snow after 1700. Snow accumulation of 1 to 2
                    inches.
Max temperature.....11-17.
   24 hr trend......45 degrees cooler.
Min humidity........65-71 percent.
   24 hr trend......40 percent wetter.
20-foot winds.......Northeast around 10 mph and gusty.
LAL.................1.
Chc of wetting rain.30 percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing height.......2200-3100 ft AGL.
Smoke dispersal.....Poor (29200-29400 knot-ft).
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...Much colder. Patchy blowing snow in the evening.
Cloudy with snow. Lows around 5 below. Highs around 11. North
winds around 10 mph.
.WEDNESDAY...Not as cold. Partly cloudy. Lows around 5 below.
Highs in the mid 20s. South winds around 5 mph.
.THURSDAY...Mostly clear. Lows around 7. Highs in the mid 30s.
Winds generally less than 10 mph.
.FRIDAY...Partly cloudy with slight chance of snow showers. Lows
around 14. Highs in the upper 30s.
.SATURDAY...Partly cloudy. Slight chance of snow showers. Lows
around 17. Highs in the upper 30s.

$$



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