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HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
409 AM MDT WED SEP 2 2015

WYZ001>020-022>030-031015-
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-
409 AM MDT WED SEP 2 2015

...RED FLAG WARNING FOR MUCH OF THE AREA THROUGH THURSDAY EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

WARM...DRY...AND WINDY CONDITIONS TO CONTINUE TODAY. THIS WILL RESULT
IN EXTREME FIRE WEATHER CONDITIONS OVER MUCH OF THE AREA. PLEASE
SEE THE RED FLAG WARNING FOR ADDITIONAL DETAILS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THURSDAY...EXTREME FIRE BEHAVIOR TO CONTINUE. SHOWERS AND
THUNDERSTORMS WILL BE POSSIBLE OVER THE NORTHERN MOUNTAINS DURING
THE AFTERNOON AND EVENING HOURS.

FRIDAY...SHOWERS AND THUNDERSTORMS POSSIBLE ALONG WITH GUSTY WIND.

SATURDAY AND SUNDAY...WINDY AND TURNING COOLER TO COLDER FROM WEST
TO EAST WITH A CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS ESPECIALLY
IN THE NORTHWEST. CONTINUED ELEVATED FIRE CONCERNS EAST OF THE DIVIDE
SATURDAY. SOME HIGHER ELEVATION SNOW POSSIBLE IN THE NORTHWEST
MOUNTAINS SATURDAY NIGHT AND SUNDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
1035 AM MDT WED SEP 2 2015

WYZ101>119-031200-
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-
1035 AM MDT WED SEP 2 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST WYOMING.

.DAY ONE...TODAY AND TONIGHT

A FEW ISOLATED THUNDERSTORMS ARE POSSIBLE OVER THE MOUNTAINS OF
SOUTHEAST WYOMING THIS AFTERNOON. THERE IS NO THREAT OF SEVERE
WEATHER TODAY.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A SLIGHT CHANCE OF MAINLY AFTERNOON AND EVENING THUNDERSTORMS
WILL CONTINUE LATE THIS WEEK. THUNDERSTORMS ARE EXPECTED TO
INCREASE IN COVERAGE BY FRIDAY AND SATURDAY AS A PACIFIC STORM
SYSTEM APPROACHES THE REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
938 AM MDT WED SEP 2 2015

COZ030>051-031545-
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-
938 AM MDT WED SEP 2 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL
COLORADO.

.DAY ONE...TODAY AND TONIGHT

ANOTHER ROUND OF SHOWERS IS EXPECTED TO DEVELOP THIS AFTERNOON
OVER THE MOUNTAINS WITH LIGHT RAIN AND GUSTY WINDS. SOME OF THESE
SHOWERS MAY ALSO MOVE OUT OVER THE I-25 CORRIDOR BEFORE
DISSIPATING. WIND GUSTS UP TO 35 MPH WILL BE POSSIBLE NEAR THE
FOOTHILLS AND EAST OVER DENVER THIS AFTERNOON. HIGH TEMPERATURES
ON THE PLAINS WILL CLIMB INTO THE LOWER TO MID 90S WITH 70S IN THE
MOUNTAINS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THERE WILL BE A BETTER CHANCE OF SHOWERS AND THUNDERSTORMS OVER
THE HIGHER TERRAIN THURSDAY AND FRIDAY WITH A SLIGHT CHANCE OF
STORMS OVER THE PLAINS. ON SATURDAY THERE WILL BE A SLIGHT CHANCE
OF THUNDERSTORMS. FOR SUNDAY AND MONDAY IT WILL BE MAINLY DRY.
TEMPERATURES WILL REMAIN ABOVE NORMAL THROUGH THE WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
533 AM MDT WED SEP 2 2015

COZ001>014-017>023-UTZ022>025-027>029-031145-
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-FLATTOPS-
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-
533 AM MDT WED SEP 2 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN
COLORADO.

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER THE SOUTHWEST
AND CENTRAL COLORADO MOUNTAINS AROUND MIDDAY...CONTINUING INTO THE
EVENING. SOME STORM ACTIVITY WILL CONTINUE THROUGH THE NIGHT. THE
STRONGEST STORMS WILL BE CAPABLE OF GENERATING HEAVY RAIN...SMALL
HAIL AND WIND GUSTS TO 40 MPH.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THURSDAY AND FRIDAY...SHOWERS AND THUNDERSTORMS WILL BE MORE
WIDESPREAD AT THE END OF THE WEEK WITH HEAVY RAIN BECOMING MORE
PREVALENT WITH THE ARRIVAL OF MONSOONAL MOISTURE. LOCALIZED
FLOODING IS POSSIBLE FOR AREAS SOUTH OF THE I-70 CORRIDOR.

SATURDAY...STORM COVERAGE DECREASES AS THE PLUME OF MONSOON
MOISTURE SHIFTS EAST OF THE AREA.

SUNDAY THROUGH TUESDAY...LITTLE OR NO THUNDERSTORM ACTIVITY IS
EXPECTED SUNDAY OR MONDAY. HOWEVER...THERE IS A SLIGHT CHANCE FOR
THUNDERSTORMS OVER THE SOUTHERN MOUNTAINS TUESDAY AFTERNOON.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

$$

NL

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
335 AM MDT WED SEP 2 2015

MTZ028-034-040-041-056-063>068-030945-
SOUTHERN WHEATLAND-NORTHERN STILLWATER-NORTHERN PARK-
NORTHERN SWEET GRASS-RED LODGE FOOTHILLS-JUDITH GAP-
PARADISE VALLEY-LIVINGSTON AREA-BEARTOOTH FOOTHILLS-
ABSAROKA/BEARTOOTH MOUNTAINS-CRAZY MOUNTAINS-
335 AM MDT WED SEP 2 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA
AND SOUTH CENTRAL MONTANA.

.DAY ONE...TODAY AND TONIGHT

CRITICAL FIRE WEATHER CONDITIONS WILL OCCUR ACROSS PORTIONS OF
SOUTH CENTRAL MONTANA THIS AFTERNOON AND EVENING DUE TO LOW
HUMIDITIES...HOT TEMPERATURES AND GUSTY WINDS. BE VERY CAREFUL
WITH ANY OPEN FLAME AND CONTACT LOCAL OFFICIALS BEFORE CONDUCTING
ANY OUTDOOR BURNING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
242 AM MDT WED SEP 2 2015

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-031400-
HARDING-PERKINS-BUTTE-NORTHERN MEADE CO PLAINS-ZIEBACH-
NORTHERN BLACK HILLS-NORTHERN FOOT HILLS-RAPID CITY-
SOUTHERN FOOT HILLS-CENTRAL BLACK HILLS-SOUTHERN BLACK HILLS-
CUSTER CO PLAINS-PENNINGTON CO PLAINS-HAAKON-FALL RIVER-SHANNON-
JACKSON-BENNETT-MELLETTE-TODD-TRIPP-STURGIS/PIEDMONT FOOT HILLS-
SOUTHERN MEADE CO PLAINS-HERMOSA FOOT HILLS-NORTHERN CAMPBELL-
SOUTHERN CAMPBELL-WESTERN CROOK-WYOMING BLACK HILLS-WESTON-
NORTHEASTERN CROOK-
242 AM MDT WED SEP 2 2015 /342 AM CDT WED SEP 2 2015/

...RED FLAG WARNING IN EFFECT FOR PART OF NORTHEASTERN WYOMING
TODAY INTO THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND
NORTHEASTERN WYOMING.

.DAY ONE...TODAY AND TONIGHT

HOT...DRY...AND BREEZY CONDITIONS ACROSS PART OF NORTHEASTERN
WYOMING WILL ALLOW FOR CRITICAL FIRE WEATHER CONDITIONS TO
DEVELOP THIS AFTERNOON. CONDITIONS WILL IMPROVE THIS EVENING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS MAINLY OVER WESTERN AND
CENTRAL SOUTH DAKOTA ON THURSDAY NIGHT AND FRIDAY. THERE IS A
BETTER CHANCE OF SHOWERS AND THUNDERSTORMS FROM FRIDAY NIGHT
THROUGH THE WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

&&

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...
OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY

$$

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
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE