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

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000
FNUS55 KCYS 200930
FWFCYS

Fire Weather Planning Forecast for Southeast Wyoming/Western Nebraska
National Weather Service Cheyenne WY
230 AM MST Sat Jan 20 2018

...WINTER STORM WARNINGS IN EFFECT FROM NOON TODAY THROUGH LATE SUNDAY
AFTERNOON EXCEPT WINTER WEATHER ADVISORY UPPER NORTH PLATTE RIVER BASIN
NOON TODAY THROUGH EARLY SUNDAY AFTERNOON...

.DISCUSSION...No fire weather concerns through next week. A winter storm
will move through the region resulting in widespread snowfall, gusty
winds, and cold temperatures. Slightly warmer temperatures are expected
for the middle of next week, followed by cooling late next week.

WYZ301-202315-
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
230 AM MST Sat Jan 20 2018

...WINTER STORM WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO
2 PM MST SUNDAY...

.TODAY...
Sky/weather.........Cloudy. Snow until 1200, then snow showers.
                    Snow accumulation of 2 to 5 inches.
Max temperature.....30-35.
   24 hr trend......20 degrees cooler.
Min humidity........74-80 percent.
   24 hr trend......49 percent wetter.
20-foot winds.......Northeast around 10 mph and gusty.
LAL.................1.
Chc of wetting rain.65 percent.
Transport winds.....North around 10 mph shifting to the east in the
                    afternoon.
Mixing height.......900-2600 ft AGL.
Smoke dispersal.....Poor (12200-25700 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Snow showers until 1900, then snow
                    until 0500, then chance of snow. Snow
                    accumulation of 3 to 5 inches.
Min temperature.....18-23.
   24 hr trend......6 degrees cooler.
Max humidity........94-100 percent.
   24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Northeast around 5 mph.
LAL.................1.
Chc of wetting rain.75 percent.
Transport winds.....Northeast around 20 mph.
Mixing height.......1600-2500 ft AGL.
Smoke dispersal.....Poor (31700-33700 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SUNDAY...
Sky/weather.........Mostly cloudy. Chance of snow until 1700, then
                    slight chance of snow.
Max temperature.....25-30.
   24 hr trend......6 degrees cooler.
Min humidity........67-73 percent.
   24 hr trend......10 percent drier.
20-foot winds.......Northwest around 10 mph and gusty.
LAL.................1.
Chc of wetting rain.30 percent.
Transport winds.....North 20 to 25 mph.
Mixing height.......1900-3900 ft AGL.
Smoke dispersal.....Poor to good (36100-75500 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.MONDAY...Partly cloudy with slight chance of snow. Lows around
9. Highs around 30. West winds around 10 mph.
.TUESDAY...Partly cloudy. Lows around 16. Highs in the upper 20s.
Winds generally less than 10 mph.
.WEDNESDAY...Partly cloudy. Lows around 12. Highs in the mid 30s.
Southwest winds around 10 mph.
.THURSDAY...Partly cloudy. Lows in the lower 20s. Highs in the
upper 30s.
.FRIDAY...Mostly cloudy with chance of snow showers. Lows around
18. Highs in the upper 20s.

$$

WYZ302-202315-
North Laramie Range/Medicine Bow NF-
230 AM MST Sat Jan 20 2018

...WINTER STORM WARNING IN EFFECT FROM 8 AM THIS MORNING TO 2 PM
MST SUNDAY...

.TODAY...
Sky/weather.........Cloudy. Snow until 1200, then snow showers.
                    Snow accumulation of 2 to 7 inches.
Max temperature.....28-34.
   24 hr trend......14 degrees cooler.
Min humidity........69-75 percent.
   24 hr trend......37 percent wetter.
20-foot winds.......East 5 to 10 mph.
LAL.................1.
Chc of wetting rain.55 percent.
Transport winds.....West around 10 mph shifting to the southeast in
                    the afternoon.
Mixing height.......600-2000 ft AGL.
Smoke dispersal.....Poor (7400-13700 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Snow showers until 1900, then snow.
                    Snow accumulation of 5 to 8 inches.
Min temperature.....14-20.
   24 hr trend......9 degrees cooler.
Max humidity........93-99 percent.
   24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northeast around 10 mph.
LAL.................1.
Chc of wetting rain.85 percent.
Transport winds.....East 15 to 20 mph.
Mixing height.......900-2900 ft AGL.
Smoke dispersal.....Poor (19600-38900 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SUNDAY...
Sky/weather.........Mostly cloudy. Snow until 1100, then chance of
                    snow until 1700, then slight chance of snow.
                    Snow accumulation of 2 to 4 inches.
Max temperature.....20-26.
   24 hr trend......8 degrees cooler.
Min humidity........63-69 percent.
   24 hr trend......7 percent drier.
20-foot winds.......Northwest around 10 mph with higher gusts.
LAL.................1.
Chc of wetting rain.40 percent.
Transport winds.....North around 25 mph.
Mixing height.......2300-4300 ft AGL.
Smoke dispersal.....Fair to good (48100-91700 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.MONDAY...Partly cloudy with slight chance of snow. Lows around
10. Highs in the mid 20s. West winds around 15 mph.
.TUESDAY...Partly cloudy. Slight chance of snow showers. Lows
around 15. Highs in the upper 20s. West winds around 10 mph.
.WEDNESDAY...Partly cloudy. Lows around 15. Highs in the lower
30s. West winds around 10 mph.
.THURSDAY...Partly cloudy. Lows in the lower 20s. Highs in the
mid 30s.
.FRIDAY...Mostly cloudy. Chance of snow showers. Lows around 18.
Highs in the upper 20s.

$$

WYZ303-202315-
Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains-
230 AM MST Sat Jan 20 2018

...WINTER STORM WARNING IN EFFECT FROM 8 AM THIS MORNING TO 2 PM
MST SUNDAY...

.TODAY...
Sky/weather.........Mostly cloudy. Snow until 1200, then snow
                    showers. Snow accumulation of 1 to 6 inches.
Max temperature.....32-40.
   24 hr trend......17 degrees cooler.
Min humidity........63-69 percent.
   24 hr trend......40 percent wetter.
20-foot winds.......Southwest around 10 mph shifting to the
                    northwest in the afternoon. Gusts up to 25 mph.
LAL.................1.
Chc of wetting rain.60 percent.
Transport winds.....South around 10 mph increasing to around 20 mph
                    in the afternoon.
Mixing height.......900-1400 ft AGL increasing to 2300-4000 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor to fair (8900-50300 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Snow showers until 1900, then snow
                    until 0500. chance of snow after 0500. Patchy
                    blowing snow after 2000 until 0500. Snow
                    accumulation of 3 to 6 inches.
Min temperature.....15-20.
   24 hr trend......12 degrees cooler.
Max humidity........90-96 percent.
   24 hr trend......8 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast around 10 mph and gusty.
LAL.................1.
Chc of wetting rain.75 percent.
Transport winds.....Northeast 15 to 20 mph.
Mixing height.......1300-2500 ft AGL.
Smoke dispersal.....Poor (20200-39300 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SUNDAY...
Sky/weather.........Mostly cloudy until 1500, then partly cloudy.
                    Chance of snow until 1100, then slight chance
                    of snow.
Max temperature.....23-28.
   24 hr trend......10 degrees cooler.
Min humidity........59-65 percent.
   24 hr trend......9 percent drier.
20-foot winds.......Northwest around 10 mph with higher gusts.
LAL.................1.
Chc of wetting rain.25 percent.
Transport winds.....North 20 to 25 mph.
Mixing height.......2700-4700 ft AGL.
Smoke dispersal.....Fair to good (59000-87600 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.MONDAY...Partly cloudy. Slight chance of snow. Lows around 9.
Highs in the upper 20s. West winds around 15 mph.
.TUESDAY...Partly cloudy. Slight chance of snow showers. Lows
around 15. Highs in the upper 20s. West winds around 10 mph.
.WEDNESDAY...Partly cloudy. Lows around 16. Highs in the lower
30s. Southwest winds around 10 mph.
.THURSDAY...Partly cloudy. Lows in the lower 20s. Highs in the
mid 30s.
.FRIDAY...Mostly cloudy with chance of snow showers. Lows around
18. Highs around 30.

$$

WYZ304-202315-
Southwest Carbon County-
230 AM MST Sat Jan 20 2018

...WINTER STORM WARNING IN EFFECT FROM 8 AM THIS MORNING TO 2 PM
MST SUNDAY...

.TODAY...
Sky/weather.........Cloudy. Snow likely until 1100, then snow until
                    1700, then snow showers. Snow accumulation
                    around 2 inches.
Max temperature.....34-44.
   24 hr trend......14 degrees cooler.
Min humidity........61-67 percent.
   24 hr trend......45 percent wetter.
20-foot winds.......Southwest 10 to 15 mph with higher gusts.
LAL.................1.
Chc of wetting rain.60 percent.
Transport winds.....South around 15 mph increasing to around 30 mph
                    in the afternoon.
Mixing height.......700-1200 ft AGL increasing to 2800-4600 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (11000 knot-ft) increasing to good (94200
                    knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Snow showers until 2400. snow likely
                    after 2400. Patchy blowing snow after 2000
                    until 0500. Snow accumulation of 2 to 3 inches.
Min temperature.....14-19.
   24 hr trend......9 degrees cooler.
Max humidity........93-99 percent.
   24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......North 10 to 15 mph. Gusts up to 25 mph
                    increasing to 35 mph after midnight.
LAL.................1.
Chc of wetting rain.55 percent.
Transport winds.....Northwest around 15 mph increasing to north
                    around 25 mph after midnight.
Mixing height.......1700-2600 ft AGL.
Smoke dispersal.....Poor (18900-36200 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SUNDAY...
Sky/weather.........Mostly cloudy until 1500, then partly cloudy.
                    Chance of snow until 1100, then slight chance
                    of snow until 1700.
Max temperature.....24-34.
   24 hr trend......10 degrees cooler.
Min humidity........48-54 percent.
   24 hr trend......15 percent drier.
20-foot winds.......Northwest 10 to 15 mph with gusts to around 35
                    mph.
LAL.................1.
Chc of wetting rain.10 percent.
Transport winds.....North around 30 mph decreasing to around 20 mph
                    in the afternoon.
Mixing height.......2200-2700 ft AGL increasing to 5100-7100 ft AGL
                    in the afternoon.
Smoke dispersal.....Good (61800 knot-ft) increasing to very good
                    (117900 knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.MONDAY...Partly cloudy. Slight chance of snow showers. Lows
around 5. Highs in the lower 30s. Southwest winds around 10 mph.
.TUESDAY...Mostly cloudy. Slight chance of snow showers. Lows
around 11. Highs in the mid 30s. Southwest winds around 10 mph.
.WEDNESDAY...Partly cloudy. Lows around 10. Highs in the upper
30s. Southwest winds around 10 mph.
.THURSDAY...Mostly cloudy. Lows around 17. Highs in the upper
30s.
.FRIDAY...Mostly cloudy with chance of snow showers. Lows around
14. Highs in the lower 30s.

$$

WYZ305-202315-
Sierra Madre Range/Medicine Bow NF-
230 AM MST Sat Jan 20 2018

...WINTER STORM WARNING IN EFFECT FROM 8 AM THIS MORNING TO 2 PM
MST SUNDAY...

.TODAY...
Sky/weather.........Cloudy. Snow likely until 1200, then snow
                    showers. Snow accumulation of 2 to 4 inches.
Max temperature.....34-40.
   24 hr trend......8 degrees cooler.
Min humidity........61-67 percent.
   24 hr trend......24 percent wetter.
20-foot winds.......Southwest 10 to 15 mph with higher gusts.
LAL.................1.
Chc of wetting rain.50 percent.
Transport winds.....Southwest 25 to 30 mph.
Mixing height.......900-1500 ft AGL increasing to 3100-4400 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (23200 knot-ft) increasing to very good
                    (108300 knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Snow showers until 1900, then snow
                    until 2300. snow likely after 2300. Patchy
                    blowing snow after 2000 until 0500. Snow
                    accumulation of 3 to 7 inches.
Min temperature.....15-20.
   24 hr trend......8 degrees cooler.
Max humidity........85-91 percent.
   24 hr trend......3 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......West around 5 mph shifting to the north and
                    gusty after midnight.
LAL.................1.
Chc of wetting rain.65 percent.
Transport winds.....Southwest around 15 mph shifting to the north
                    after midnight.
Mixing height.......1600-3000 ft AGL.
Smoke dispersal.....Poor (19300-34300 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SUNDAY...
Sky/weather.........Mostly cloudy. Snow likely until 1100, then
                    chance of snow. Snow accumulation of 1 to 5
                    inches.
Max temperature.....19-27.
   24 hr trend......12 degrees cooler.
Min humidity........59-65 percent.
   24 hr trend......3 percent wetter.
20-foot winds.......North around 10 mph with higher gusts.
LAL.................1.
Chc of wetting rain.40 percent.
Transport winds.....North around 25 mph.
Mixing height.......2600-3700 ft AGL increasing to 4400-6000 ft AGL
                    in the afternoon.
Smoke dispersal.....Good (64700 knot-ft) increasing to very good
                    (115700 knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.MONDAY...Mostly cloudy. Chance of snow showers. Lows around 8.
Highs in the mid 20s. West winds around 10 mph.
.TUESDAY...Mostly cloudy with chance of snow showers. Lows around
15. Highs in the upper 20s. West winds around 10 mph.
.WEDNESDAY...Partly cloudy. Lows around 15. Highs in the lower
30s. Southwest winds around 10 mph.
.THURSDAY...Mostly cloudy with slight chance of snow showers.
Lows around 20. Highs in the mid 30s.
.FRIDAY...Cloudy with chance of snow showers. Lows around 17.
Highs in the upper 20s.

$$

WYZ306-202315-
Upper North Platte River Basin-
230 AM MST Sat Jan 20 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 2 PM MST
SUNDAY...

.TODAY...
Sky/weather.........Mostly cloudy. Chance of snow until 1100, then
                    snow likely until 1700, then snow showers. Snow
                    accumulation of 1 to 2 inches.
Max temperature.....39-44.
   24 hr trend......9 degrees cooler.
Min humidity........55-61 percent.
   24 hr trend......28 percent wetter.
20-foot winds.......Southwest around 10 mph and gusty.
LAL.................1.
Chc of wetting rain.35 percent.
Transport winds.....South around 15 mph increasing to southwest
                    around 25 mph in the afternoon.
Mixing height.......1100-1600 ft AGL increasing to 4000-4500 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (15900 knot-ft) increasing to good (90800
                    knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Snow showers until 1900, then snow
                    until 0500. snow likely after 0500. Patchy
                    blowing snow after 2000 until 0500. Snow
                    accumulation around 3 inches.
Min temperature.....17-22.
   24 hr trend......11 degrees cooler.
Max humidity........85-91 percent.
   24 hr trend......10 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......North 5 to 10 mph.
LAL.................1.
Chc of wetting rain.70 percent.
Transport winds.....Northwest around 5 mph increasing to northeast
                    around 15 mph after midnight.
Mixing height.......1300-2300 ft AGL.
Smoke dispersal.....Poor (7000-19600 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SUNDAY...
Sky/weather.........Cloudy. Snow likely until 1100, then chance of
                    snow until 1700, then slight chance of snow.
                    Snow accumulation of 1 to 3 inches.
Max temperature.....23-28.
   24 hr trend......15 degrees cooler.
Min humidity........56-62 percent.
   24 hr trend......1 percent wetter.
20-foot winds.......Northwest around 10 mph with higher gusts.
LAL.................1.
Chc of wetting rain.40 percent.
Transport winds.....North around 25 mph.
Mixing height.......3400-4300 ft AGL increasing to 5400-5900 ft AGL
                    in the afternoon.
Smoke dispersal.....Good to very good (71800-118900 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.MONDAY...Partly cloudy. Chance of snow showers. Lows around 9.
Highs in the upper 20s. Southwest winds around 10 mph.
.TUESDAY...Mostly cloudy. Chance of snow showers. Lows around 16.
Highs in the lower 30s. West winds around 10 mph.
.WEDNESDAY...Partly cloudy. Lows around 16. Highs in the mid 30s.
Southwest winds around 10 mph.
.THURSDAY...Partly cloudy. Lows in the lower 20s. Highs in the
upper 30s.
.FRIDAY...Mostly cloudy with chance of snow showers. Lows around
18. Highs in the lower 30s.

$$

WYZ307-202315-
Snowy Range/Medicine Bow NF-
230 AM MST Sat Jan 20 2018

...WINTER STORM WARNING IN EFFECT FROM 8 AM THIS MORNING TO 2 PM
MST SUNDAY...

.TODAY...
Sky/weather.........Mostly cloudy. Chance of snow until 1100, then
                    snow likely until 1700, then snow showers. Snow
                    accumulation up to 3 inches.
Max temperature.....32-38.
   24 hr trend......9 degrees cooler.
Min humidity........57-63 percent.
   24 hr trend......27 percent wetter.
20-foot winds.......Southwest 10 to 15 mph with higher gusts.
LAL.................1.
Chc of wetting rain.30 percent.
Transport winds.....Southwest around 25 mph.
Mixing height.......700-1200 ft AGL increasing to 3500-4300 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (18000 knot-ft) increasing to good (94900
                    knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Snow showers until 1900, then snow.
                    Patchy blowing snow after 2300 until 0500. Snow
                    accumulation of 3 to 7 inches.
Min temperature.....10-16.
   24 hr trend......18 degrees cooler.
Max humidity........91-97 percent.
   24 hr trend......19 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......South around 5 mph shifting to the northeast
                    after midnight. Gusts up to 20 mph.
LAL.................1.
Chc of wetting rain.80 percent.
Transport winds.....South around 10 mph shifting to the northeast
                    after midnight.
Mixing height.......1200-2000 ft AGL.
Smoke dispersal.....Poor (10000-16700 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SUNDAY...
Sky/weather.........Cloudy. Snow until 1100, then snow likely until
                    1700, then chance of snow. Snow accumulation of
                    2 to 6 inches.
Max temperature.....17-23.
   24 hr trend......17 degrees cooler.
Min humidity........62-68 percent.
   24 hr trend......6 percent wetter.
20-foot winds.......North around 10 mph with higher gusts.
LAL.................1.
Chc of wetting rain.55 percent.
Transport winds.....North around 25 mph.
Mixing height.......2900-4900 ft AGL.
Smoke dispersal.....Fair (53100 knot-ft) increasing to very good
                    (111000 knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.MONDAY...Partly cloudy. Chance of snow showers. Lows around 6.
Highs in the lower 20s. West winds around 15 mph.
.TUESDAY...Mostly cloudy. Chance of snow showers. Lows around 12.
Highs in the mid 20s. West winds around 10 mph.
.WEDNESDAY...Partly cloudy. Lows around 14. Highs in the lower
30s. Southwest winds around 10 mph.
.THURSDAY...Partly cloudy. Lows around 19. Highs in the mid 30s.
.FRIDAY...Mostly cloudy with chance of snow showers. Lows around
15. Highs in the upper 20s.

$$

WYZ308-202315-
Laramie Valley/Shirley Basin-
230 AM MST Sat Jan 20 2018

...WINTER STORM WARNING IN EFFECT FROM 8 AM THIS MORNING TO 2 PM
MST SUNDAY...

.TODAY...
Sky/weather.........Mostly cloudy. Chance of snow until 1200, then
                    snow showers. Snow accumulation up to 5 inches.
Max temperature.....36-44.
   24 hr trend......9 degrees cooler.
Min humidity........52-58 percent.
   24 hr trend......17 percent wetter.
20-foot winds.......Southeast around 10 mph and gusty.
LAL.................1.
Chc of wetting rain.30 percent.
Transport winds.....South 10 to 15 mph.
Mixing height.......600-1100 ft AGL increasing to 2500-4500 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor to fair (6200-52400 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Snow showers until 1900, then snow.
                    Snow accumulation of 3 to 5 inches.
Min temperature.....13-18.
   24 hr trend......13 degrees cooler.
Max humidity........94-100 percent.
   24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Northeast around 10 mph.
LAL.................1.
Chc of wetting rain.75 percent.
Transport winds.....East 15 to 20 mph.
Mixing height.......900-2200 ft AGL.
Smoke dispersal.....Poor (14200-27800 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SUNDAY...
Sky/weather.........Cloudy. Snow until 1100, then chance of snow
                    until 1700, then slight chance of snow. Snow
                    accumulation of 1 to 4 inches.
Max temperature.....22-27.
   24 hr trend......21 degrees cooler.
Min humidity........59-65 percent.
   24 hr trend......17 percent wetter.
20-foot winds.......North around 10 mph with higher gusts.
LAL.................1.
Chc of wetting rain.45 percent.
Transport winds.....North around 25 mph.
Mixing height.......2300-3200 ft AGL increasing to 4400-5300 ft AGL
                    in the afternoon.
Smoke dispersal.....Fair (53000 knot-ft) increasing to very good
                    (115300 knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.MONDAY...Partly cloudy. Lows around 6. Highs in the upper 20s.
West winds around 15 mph.
.TUESDAY...Partly cloudy. Lows around 14. Highs around 30. West
winds around 10 mph.
.WEDNESDAY...Partly cloudy. Lows around 14. Highs in the mid 30s.
West winds around 10 mph.
.THURSDAY...Partly cloudy. Lows around 19. Highs in the upper
30s.
.FRIDAY...Mostly cloudy. Chance of snow showers. Lows around 16.
Highs in the lower 30s.

$$

WYZ309-202315-
South Laramie Range/Medicine Bow NF-
230 AM MST Sat Jan 20 2018

...WINTER STORM WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO
2 PM MST SUNDAY...

.TODAY...
Sky/weather.........Partly cloudy until 0900, then mostly cloudy.
                    Slight chance of snow until 1100, then chance
                    of snow until 1700, then snow showers. Patchy
                    fog after 1700. Snow accumulation up to 2
                    inches.
Max temperature.....35-40.
   24 hr trend......23 degrees cooler.
Min humidity........56-62 percent.
   24 hr trend......30 percent wetter.
20-foot winds.......South around 10 mph shifting to the east in the
                    afternoon. Gusts up to 20 mph.
LAL.................1.
Chc of wetting rain.15 percent.
Transport winds.....Southwest around 10 mph shifting to the
                    southeast in the afternoon.
Mixing height.......600-2200 ft AGL.
Smoke dispersal.....Poor (7200-17900 knot-ft).
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Snow showers until 1900, then snow.
                    Snow accumulation of 4 to 6 inches.
Min temperature.....15-21.
   24 hr trend......13 degrees cooler.
Max humidity........94-100 percent.
   24 hr trend......15 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast around 10 mph and gusty.
LAL.................1.
Chc of wetting rain.80 percent.
Transport winds.....East 15 to 20 mph.
Mixing height.......900-2700 ft AGL.
Smoke dispersal.....Poor (15400-30900 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SUNDAY...
Sky/weather.........Cloudy. Snow until 1100. snow likely after 1100
                    until 1700, then chance of snow. Patchy blowing
                    snow after 0800 until 1100, then areas of
                    blowing snow until 1700. Snow accumulation of 3
                    to 5 inches.
Max temperature.....22-27.
   24 hr trend......12 degrees cooler.
Min humidity........64-70 percent.
   24 hr trend......11 percent wetter.
20-foot winds.......North around 15 mph with gusts to around 35
                    mph.
LAL.................1.
Chc of wetting rain.60 percent.
Transport winds.....North 30 to 35 mph.
Mixing height.......2600-4600 ft AGL.
Smoke dispersal.....Good (60900 knot-ft) increasing to very good
                    (128200 knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.MONDAY...Partly cloudy. Lows around 12. Highs around 30. West
winds around 20 mph.
.TUESDAY...Partly cloudy. Lows around 18. Highs in the lower 30s.
West winds around 15 mph.
.WEDNESDAY...Partly cloudy. Lows around 15. Highs in the upper
30s. West winds around 10 mph.
.THURSDAY...Partly cloudy. Lows in the lower 20s. Highs in the
lower 40s.
.FRIDAY...Partly cloudy. Chance of snow showers. Lows around 20.
Highs in the lower 30s.

$$

WYZ310-202315-
Platte/Goshen/Central and Eastern Laramie-
230 AM MST Sat Jan 20 2018

...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
6 PM MST SUNDAY...

.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of snow until
                    0800. chance of snow after 0800 until 1700,
                    then snow showers. Snow accumulation up to 2
                    inches.
Max temperature.....33-38.
   24 hr trend......24 degrees cooler.
Min humidity........66-72 percent.
   24 hr trend......48 percent wetter.
20-foot winds.......Northeast 5 to 10 mph and gusty.
LAL.................1.
Chc of wetting rain.15 percent.
Transport winds.....North around 10 mph shifting to the northeast
                    in the afternoon.
Mixing height.......500-2000 ft AGL.
Smoke dispersal.....Poor (6400-13900 knot-ft).
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Snow showers until 1900, then snow.
                    Snow accumulation of 3 to 5 inches.
Min temperature.....19-24.
   24 hr trend......7 degrees cooler.
Max humidity........100 percent.
   24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Northeast around 10 mph.
LAL.................1.
Chc of wetting rain.75 percent.
Transport winds.....Northeast 15 to 20 mph.
Mixing height.......1500-2700 ft AGL.
Smoke dispersal.....Poor (22200-38300 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SUNDAY...
Sky/weather.........Cloudy. Snow until 1100. snow likely after 1100
                    until 1700. chance of snow after 1700. Patchy
                    blowing snow after 0800 until 1100. areas of
                    blowing snow after 1100. Snow accumulation of 3
                    to 6 inches.
Max temperature.....24-29.
   24 hr trend......11 degrees cooler.
Min humidity........72-78 percent.
   24 hr trend......2 percent wetter.
20-foot winds.......North 10 to 15 mph with gusts to around 35 mph.
LAL.................1.
Chc of wetting rain.65 percent.
Transport winds.....North around 25 mph increasing to around 35 mph
                    in the afternoon.
Mixing height.......1900-3900 ft AGL.
Smoke dispersal.....Fair (46600 knot-ft) increasing to very good
                    (108600 knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.MONDAY...Partly cloudy. Lows around 11. Highs in the lower 30s.
Northwest winds around 10 mph.
.TUESDAY...Partly cloudy. Lows around 17. Highs in the lower 30s.
West winds around 10 mph.
.WEDNESDAY...Partly cloudy. Lows around 12. Highs in the upper
30s. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy. Lows around 20. Highs in the lower
40s.
.FRIDAY...Mostly cloudy. Chance of snow showers. Lows around 18.
Highs in the lower 30s.

$$

NEZ311-202315-
Pine Ridge/Nebraska National Forest/Oglala National Grasslands-
230 AM MST Sat Jan 20 2018

...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
6 PM MST SUNDAY...

.TODAY...
Sky/weather.........Cloudy. Slight chance of snow until 0800.
                    chance of snow after 0800 until 1700, then snow
                    showers. Snow accumulation up to 2 inches.
Max temperature.....32-37.
   24 hr trend......19 degrees cooler.
Min humidity........74-80 percent.
   24 hr trend......46 percent wetter.
20-foot winds.......Northeast 5 to 10 mph.
LAL.................1.
Chc of wetting rain.20 percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing height.......500-2300 ft AGL.
Smoke dispersal.....Poor (7300-26000 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Snow showers until 1900, then snow.
                    Snow accumulation of 4 to 5 inches.
Min temperature.....21-26.
   24 hr trend......3 degrees cooler.
Max humidity........94-100 percent.
   24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Northeast around 10 mph.
LAL.................1.
Chc of wetting rain.80 percent.
Transport winds.....Northeast 20 to 25 mph.
Mixing height.......1400-2300 ft AGL.
Smoke dispersal.....Poor (30200-39900 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SUNDAY...
Sky/weather.........Cloudy. Snow until 1100, then snow likely until
                    1700, then chance of snow. Patchy blowing snow
                    after 1100 until 1700. Snow accumulation of 3
                    to 4 inches.
Max temperature.....26-31.
   24 hr trend......5 degrees cooler.
Min humidity........74-80 percent.
   24 hr trend......Unchanged.
20-foot winds.......North around 10 mph with higher gusts.
LAL.................1.
Chc of wetting rain.65 percent.
Transport winds.....North 25 to 30 mph.
Mixing height.......1700-3600 ft AGL.
Smoke dispersal.....Fair to good (42000-88800 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.MONDAY...Partly cloudy. Lows around 12. Highs around 30.
Northwest winds around 10 mph.
.TUESDAY...Partly cloudy. Lows around 17. Highs in the lower 30s.
West winds around 10 mph.
.WEDNESDAY...Mostly clear. Lows around 11. Highs in the mid 30s.
Winds generally less than 10 mph.
.THURSDAY...Partly cloudy. Lows around 20. Highs around 40.
.FRIDAY...Mostly cloudy. Chance of snow showers. Lows around 18.
Highs in the lower 30s.

$$

NEZ312-202315-
Box Butte/South Sioux-
230 AM MST Sat Jan 20 2018

...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
6 PM MST SUNDAY...

.TODAY...
Sky/weather.........Cloudy. Chance of snow after 1100 until 1700,
                    then snow showers likely. Snow accumulation up
                    to 1 inch.
Max temperature.....32-37.
   24 hr trend......22 degrees cooler.
Min humidity........72-78 percent.
   24 hr trend......47 percent wetter.
20-foot winds.......Northeast 5 to 10 mph.
LAL.................1.
Chc of wetting rain.5 percent.
Transport winds.....North around 15 mph.
Mixing height.......600-1800 ft AGL.
Smoke dispersal.....Poor (6100-20800 knot-ft).
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Snow showers likely until 1900, then
                    snow likely until 2300, then snow. Snow
                    accumulation of 3 to 5 inches.
Min temperature.....21-26.
   24 hr trend......4 degrees cooler.
Max humidity........94-100 percent.
   24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Northeast around 10 mph.
LAL.................1.
Chc of wetting rain.65 percent.
Transport winds.....Northeast 20 to 25 mph.
Mixing height.......1600-2500 ft AGL.
Smoke dispersal.....Poor to fair (28400-45700 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SUNDAY...
Sky/weather.........Cloudy. Snow until 1700. chance of snow after
                    1700. Patchy blowing snow after 1100 until
                    1700. Snow accumulation around 4 inches.
Max temperature.....24-29.
   24 hr trend......7 degrees cooler.
Min humidity........74-80 percent.
   24 hr trend......3 percent wetter.
20-foot winds.......North around 10 mph with higher gusts.
LAL.................1.
Chc of wetting rain.75 percent.
Transport winds.....North 30 to 35 mph.
Mixing height.......1600-3400 ft AGL.
Smoke dispersal.....Fair to good (45100-93300 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.MONDAY...Partly cloudy. Lows around 12. Highs around 30.
Northwest winds around 10 mph.
.TUESDAY...Partly cloudy. Lows around 16. Highs in the lower 30s.
Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows around 10. Highs in the mid 30s.
Winds generally less than 10 mph.
.THURSDAY...Partly cloudy. Lows around 19. Highs around 40.
.FRIDAY...Mostly cloudy. Chance of snow showers. Lows around 17.
Highs in the lower 30s.

$$

NEZ313-202315-
Scotts Bluff National Monument/Wildcat Hills-
230 AM MST Sat Jan 20 2018

...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
6 PM MST SUNDAY...

.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of snow after 1100
                    until 1700, then chance of snow showers.
Max temperature.....34-39.
   24 hr trend......20 degrees cooler.
Min humidity........68-74 percent.
   24 hr trend......45 percent wetter.
20-foot winds.......North 5 to 10 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....North 10 to 15 mph.
Mixing height.......500-1700 ft AGL.
Smoke dispersal.....Poor (4000-14700 knot-ft).
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Chance of snow showers until 1900, then
                    chance of snow until 2300, then snow. Snow
                    accumulation of 1 to 4 inches.
Min temperature.....20-25.
   24 hr trend......6 degrees cooler.
Max humidity........100 percent.
   24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Northeast around 10 mph.
LAL.................1.
Chc of wetting rain.45 percent.
Transport winds.....Northeast 15 to 20 mph.
Mixing height.......1300-2000 ft AGL.
Smoke dispersal.....Poor (20800-31300 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SUNDAY...
Sky/weather.........Cloudy. Snow until 1100. snow likely after 1100
                    until 1700. chance of snow after 1700. Patchy
                    blowing snow after 0800 until 1100. areas of
                    blowing snow after 1100. Snow accumulation of 4
                    to 6 inches.
Max temperature.....24-29.
   24 hr trend......8 degrees cooler.
Min humidity........79-85 percent.
   24 hr trend......9 percent wetter.
20-foot winds.......North around 15 mph with gusts to around 35
                    mph.
LAL.................1.
Chc of wetting rain.75 percent.
Transport winds.....Northeast around 30 mph increasing to north
                    around 40 mph in the afternoon.
Mixing height.......1900-3200 ft AGL.
Smoke dispersal.....Fair to good (54400-98200 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.MONDAY...Partly cloudy. Lows around 14. Highs in the lower 30s.
Northwest winds around 10 mph.
.TUESDAY...Partly cloudy. Lows around 17. Highs in the lower 30s.
Northwest winds around 10 mph.
.WEDNESDAY...Mostly clear. Lows around 12. Highs in the upper
30s. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy. Lows around 18. Highs in the lower
40s.
.FRIDAY...Mostly cloudy. Chance of snow showers. Lows around 18.
Highs in the lower 30s.

$$
MAJ/JG



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