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URGENT - FIRE WEATHER MESSAGE
National Weather Service Rapid City SD
146 PM MDT Tue Sep 19 2017

...FIRE WEATHER WATCH IN EFFECT FOR WEDNESDAY AFTERNOON THROUGH
EARLY WEDNESDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY
OVER NORTHEASTERN WYOMING AND PORTIONS OF WESTERN SOUTH DAKOTA...

.Dry gusty southwest flow will develop Wednesday afternoon,
potentially supporting critical fire weather conditions. Relative
humidities will drop to at 15 to 20 percent with lower readings
possible. Gusty southwest winds up to 35 mph at times will
develop over northeast Wyoming into southwest South Dakota by
early afternoon.

The combination of low relative humidity and gusty winds could
produce critical fire weather conditions.

SDZ262>264-WYZ259-297>299-201100-
/O.CON.KUNR.FW.A.0009.170920T1800Z-170921T0100Z/
Southern Black Hills-Southwestern South Dakota-Badlands Area-
Southern Campbell-Northern Campbell-
Crook and Weston County Plains-Wyoming Black Hills-
146 PM MDT Tue Sep 19 2017

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONES 259...262...263...264...297...
298 AND 299...

* Affected Area...Fire Weather Zones 259...262...263...264...
  297...298 and 299.

* Winds...Southwest 15 to 25 mph with gusts up to 35 mph.

* Relative Humidity...As low as 15 percent.

* Impacts...This combination of gusty winds and low relative
  humidities would produce critical fire weather conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A fire weather watch means that critical fire weather conditions
are possible. Listen for later forecasts and possible red flag
warnings.

&&

$$


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Cheyenne WY
832 PM MDT Tue Sep 19 2017

WYZ101>119-201200-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
832 PM MDT Tue Sep 19 2017

This hazardous weather outlook is for portions of east central
Wyoming...south central Wyoming and southeast Wyoming.

.DAY ONE...TONIGHT

High winds will continue across parts of southeast Wyoming,
particularly for the I-25 corridor from the Colorado border north
to just south of Wheatland through Midnight. Winds gusts to around
60 mph will pose a significant risk for blowovers of high profile
vehicles and trucks pulling lighter weight trailers. The winds are
expected to diminish somewhat after midnight tonight.

Periods of light mountain snows will gradually taper off late
tonight with generally light accumulations of a few inches
possible. Roads in the high country are expected to remain
passable tonight.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A weather disturbance is expected to impact the region from
Friday through at least Sunday. Much colder temperatures will
accompany this system, along with good chances for precipitation.
Rain could mix with, or change entirely to snow at elevations as
low as 6000 feet.

.Spotter information statement...

Activation of storm spotters is not expected at this time.

$$

Hazardous Weather Outlook
National Weather Service Cheyenne WY
832 PM MDT Tue Sep 19 2017

NEZ002-003-019>021-054-055-095-096-201200-
Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-
North Sioux-South Sioux-
832 PM MDT Tue Sep 19 2017

This hazardous weather outlook is for portions of western
Nebraska.

.DAY ONE...TONIGHT

Northwest winds at 35 to 45 mph will continue across the southern
Nebraska Panhandle through late tonight. Those driving west along
Interstate 80 driving high profile or pulling lighter weight
trailers should be on the lookout for sudden wind gusts from the
northwest that could result in the loss of control of the vehicle.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

No hazardous weather is expected at this time.

.Spotter information statement...

Activation of storm spotters is not expected at this time.

$$

Hazardous Weather Outlook
National Weather Service North Platte NE
503 PM CDT Tue Sep 19 2017

NEZ004>010-022>029-035>038-056>059-069>071-094-202215-
Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-
Grant-Hooker-Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson-
Logan-Custer-Deuel-Keith-Perkins-Lincoln-Chase-Hayes-Frontier-
Western Cherry-
503 PM CDT Tue Sep 19 2017 /403 PM MDT Tue Sep 19 2017/

This Hazardous Weather Outlook is for portions of western and
north central Nebraska.

.DAY ONE...TONIGHT.

A strong thunderstorm is possible this evening across Boyd
county, however most of the stronger storms should remain north
of the area.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

A nearly stationary front will result in periods of moderate to
heavy rainfall Friday evening through Sunday. Thunderstorms with
areas of heavy rainfall are possible during this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

&&

Get your weather, hydrological, and climate information at
http://www.weather.gov/northplatte

$$

TAYLOR

Hazardous Weather Outlook
National Weather Service Riverton WY
212 PM MDT Tue Sep 19 2017

WYZ001>020-022>030-201200-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Big Horn Basin-Southwest Big Horn Basin-
Southeast Big Horn Basin-Owl Creek and Bridger Mountains-
Bighorn Mountains West-Bighorn Mountains Southeast-
Northeast Johnson County-Southeast Johnson County-
Teton and Gros Ventre Mountains-Jackson Hole-
Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
212 PM MDT Tue Sep 19 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO
9 PM MDT TUESDAY FOR THE NORTHERN AND WESTERN MOUNTAINS...

...WINTER STORM WATCH FOR THE WIND RIVER MOUNTAINS WEDNESDAY NIGHT
THROUGH FRIDAY MORNING...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight

A cold wet pacific low pressure trough will bring snowfall
to the western and northern mountains of wyoming through this
evening. An isolated afternoon thunderstorm is not out of the
question.

The heavier snowfall is expected above 8500 feet where 4 to 10
inches of snow can be expected through 9 pm mdt this evening.
Snowfall from 7500 to 8500 feet is expected to be from 2 to 5
inches. Additionally, west to southwest winds of 20 to 30 mph
with gusts to 45 mph will be possible.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Wednesday...Unsettled with a good chance of some mountain
snowfall at times with possible snow down to the valley and basin
floor out west. Windy to very windy across most of the forecast
area with gusts as high as 45 mph over the lower elevations...55
or more mph across the higher ridges and passes in the central and
northern mountains.

Thursday through Friday...Significant mountain snowfall possible
over the western mountains. Rain may change to snow in the Cody
Foothills early Friday.

Friday night through Sunday night...Widespread mountain snowfall
and valley rain at times especially along and east of the Divide.
Snow could lower to valley floors at a few locations east of the
Divide.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report snowfall amounts. Thank you!

$$

Team Riverton

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1029 AM MDT Tue Sep 19 2017

COZ030>051-201630-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Central and Southeast Park County-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
1029 AM MDT Tue Sep 19 2017

This hazardous weather outlook is for northeast and north central
Colorado.

.DAY ONE...Today and Tonight

Very dry and windy conditions will prevail this afternoon ahead
of a cold front. Wind gusts up to 50 mph will occur over the
higher terrain with gusts to 30 mph over northeast Colorado.
Critical to extreme fire weather conditions will be in place over
most of north central and northeast Colorado this afternoon into
the early evening hours. There will be a chance of showers in the
mountains late this afternoon and evening mainly near the Wyoming
border.

A strong southwesterly flow aloft will be over the region this
afternoon as a trough passes across the Northern Rockies. Its
associated cool front will push into northeast Colorado this
evening.


.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Warm temperatures, dry conditions, and breezy conditions will
elevated the fire danger at times through Friday. Moisture will
increase behind a cold front that is expected to push through the
area Friday. Temperatures will fall below seasonal normals
Saturday through Monday with a chance of rain and high mountain
snow.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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