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Hazardous Weather Outlook

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.

$$




Red Flag Warning

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
258 AM MDT WED SEP 2 2015

...ELEVATED TO EXTREME FIRE DANGER PROBABLE FOR THE NEXT COUPLE DAYS...

.HOT DRY AND WINDY AGAIN TODAY. STRONG SOUTHWEST FLOW WILL
INCREASE ACROSS THE STATE TODAY AS A TROUGH APPROACHES FROM THE
WEST WITH WIDESPREAD LOW HUMIDITY AND STRONG WIND. A FEW SHOWERS
MAY BE PRESENT OVER THE WESTERN MOUNTAINS TONIGHT. THIS MAY
ENHANCE WIND OVER THE WESTERN VALLEYS. THURSDAY WILL SEE CONTINUED
HOT...DRY AND WINDY CONDITIONS AHEAD OF THE APPROACHING WAVE OF
LOW PRESSURE...WITH A RETURN OF ISOLATED TO SCATTERED SHOWERS AND
THUNDERSTORMS.

WYZ275>277-279>283-285-287-289-300-414>416-022300-
/O.CON.KRIW.FW.W.0016.000000T0000Z-150904T0300Z/
NORTH BIG HORN BASIN/WORLAND BLM-CODY FOOTHILLS-
LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS-
SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA-
NATRONA COUNTY/CASPER BLM-JOHNSON COUNTY/CASPER BLM-
SOUTH BIG HORN BASIN/WORLAND BLM-
UPPER WIND RIVER BASIN/WIND RIVER BASIN-SOUTH BIGHORN MOUNTAINS-
OWL CREEK MOUNTAINS-GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-
CASPER MOUNTAIN-
SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF-
NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP-
WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF-
258 AM MDT WED SEP 2 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THURSDAY FOR
STRONG WIND...LOW HUMIDITY...HOT TEMPERATURES...HIGH HAINES INDEX
AND CRITICAL LIGHTNING...

* AFFECTED AREA...FIRE WEATHER ZONE 275. FIRE WEATHER ZONE 276.
  FIRE WEATHER ZONE 277. FIRE WEATHER ZONE 279. FIRE WEATHER ZONE
  280. FIRE WEATHER ZONE 281. FIRE WEATHER ZONE 282. FIRE WEATHER
  ZONE 283. FIRE WEATHER ZONE 285. FIRE WEATHER ZONE 287. FIRE
  WEATHER ZONE 289. FIRE WEATHER ZONE 300. FIRE WEATHER ZONE 414.
  FIRE WEATHER ZONE 415. FIRE WEATHER ZONE 416.

* WIND...SOUTHWEST WIND 15 TO 25 MPH WITH GUSTS TO 35 MPH TODAY
  AND THURSDAY. STRONGER GUSTS POSSIBLE IN THUNDERSTORMS COULD
  SEND OUT STRONG OUTFLOW WINDS ON THURSDAY.

* HUMIDITY...LOW TO MID TEENS DURING THE AFTERNOONS. SOME OF THE
  LOWER BASINS EAST OF THE DIVIDE COULD SEE MINIMUM RELATIVE
  HUMIDITIES IN THE SINGLE DIGITS. POOR RELATIVE HUMIDITY
  RECOVERY AT MID SLOPE OVERNIGHT.

* LIGHTNING...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS POSSIBLE
  THURSDAY AFTERNOON AND EVENING.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY.
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXTREME FIRE BEHAVIOR.

&&

$$




National Weather Service
Central Region Headquarters
Kansas City, Missouri
Last Modified: March 29, 2004
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