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Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Riverton WY
303 AM MDT Wed Oct 8 2025

WYZ001>020-022>030-091315-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn 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-
303 AM MDT Wed Oct 8 2025

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and tonight.

Near elevated fire weather conditions may be possible at times this
afternoon from Rock Springs to Casper to Buffalo as a result of gusty
winds and low min RH values.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday through Sunday...Increased chances for precipitation in
association with an influx of tropical moisture and a nearing low
pressure system. Precipitation chances shift over western WY by the
later hours Saturday through Sunday. Favorable flow and colder
temperatures around this time may lead to accumulating snowfall in
the higher elevations of western WY. Lower elevations of western WY
may see periods of cold rain with a possible transition over to a wet
heavy snow during the morning hours Sunday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

$$

Hazardous Weather Outlook
National Weather Service Cheyenne WY
332 PM MDT Wed Oct 8 2025

NEZ002-003-019>021-054-055-095-096-WYZ101>119-092145-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
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-
332 PM MDT Wed Oct 8 2025

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

- Elevated fire weather conditions continue through late this
  afternoon.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

- Precipitation chances return for Friday into the weekend.

.Spotter information statement...

Spotter activation will not be needed.

$$

Hazardous Weather Outlook
National Weather Service Rapid City SD
307 AM MDT Wed Oct 8 2025

SDZ013-026-027-030-031-041>044-046-047-049-073>077-091300-
Northern Meade Co Plains-Rapid City-Southern Foothills-
Custer Co Plains-Pennington Co Plains-Western Fall River-
Northern Oglala Lakota-Northern Jackson-Bennett-Mellette-Todd-
Tripp-Southern Meade Co Plains-Hermosa Foothills-
Eastern Fall River-Southern Oglala Lakota-Southern Jackson-
307 AM MDT Wed Oct 8 2025 /407 AM CDT Wed Oct 8 2025/

This Hazardous Weather Outlook is for portions of western South
Dakota.

.DAY ONE...Today and Tonight

The grassland fire danger index will reach the high to very
category today.

Gusty south winds can be expected today. A few gusts over 40 mph
will be possible this afternoon.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

There is a slight chance of thunderstorms Saturday in portions of
the area. Severe weather is not expected.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

$$

Hazardous Weather Outlook
National Weather Service Grand Junction CO
132 AM MDT Wed Oct 8 2025

COZ001>014-017>023-UTZ022>025-027>029-091200-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-Upper Gunnison River Valley-
Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains-
Southwest San Juan Mountains-Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
132 AM MDT Wed Oct 8 2025

This Hazardous Weather Outlook is for northwest Colorado, southwest
Colorado, west central Colorado, east central Utah, northeast Utah
and southeast Utah.

.DAY ONE...Today and tonight.

Thunderstorms build in from the south tonight for portions of
southeast Utah and southwest Colorado.


.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

A prolonged period of widespread showers and storms begins Thursday
with the highest potential for flash flooding coming on Friday and
Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$

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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