Red Flag Warning
Issued by NWS Riverton, WY

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000
WWUS85 KRIW 270141
RFWRIW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
741 PM MDT SUN JUL 26 2015

...HIGH FIRE DANGER EXPECTED TODAY AND MONDAY...

.PERIODS OF HOT...DRY...WINDY AND UNSTABLE CONDITIONS ARE
EXPECTED THIS AFTERNOON AND AGAIN ON MONDAY BY LATE MORNING AHEAD
OF A DRY COLD FRONT EXPECTED TO MOVE THROUGH LATE MONDAY EVENING.

WYZ283-270945-
/O.EXB.KRIW.FW.W.0011.150727T1600Z-150728T0400Z/
UPPER WIND RIVER BASIN/WIND RIVER BASIN-
741 PM MDT SUN JUL 26 2015

...RED FLAG WARNING IN EFFECT FROM 10 AM MONDAY TO 10 PM MDT
MONDAY NIGHT FOR HOT...DRY...WINDY AND UNSTABLE CONDITIONS AHEAD
OF A DRY COLD FRONT PASSAGE FOR FIRE WEATHER ZONE 283...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 10 AM MONDAY TO 10 PM MDT
MONDAY NIGHT.

* AFFECTED AREA...FIRE WEATHER ZONE 283.

* WIND...SOUTHWEST WIND INCREASING THROUGH THE MORNING ON MONDAY
  AND PEAKING AT 25 TO 35 MPH ON MONDAY AFTERNOON WITH GUSTS
  AROUND 45 MPH IN MORE EXPOSED AND WIND PRONE AREAS. A WIND SHIFT
  TO THE WEST- NORTHWEST WITH A DRY COLD FRONT CAN BE EXPECTED
  BETWEEN 1500 AND 1700 FROM WEST TO EAST. WINDS SHOULD DIE OFF
  RELATIVELY QUICKLY AFTER SUNSET.

* HUMIDITY...7 TO 15 PERCENT.

* OTHER...A HIGH HAINES INDEX OF 5 TO 6 IS EXPECTED MONDAY
  AFTERNOON. IN ADDITION...HIGH TEMPERATURES WILL BE IN THE UPPER
  80S TO MIDDLE 90S... WHICH IS 5 TO 10 DEGREES ABOVE AVERAGE FOR
  THIS TIME OF YEAR.

* 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 MAY
LEAD TO EXTREME FIRE BEHAVIOR.

&&

$$

WYZ280-281-285-300-270945-
/O.CON.KRIW.FW.W.0011.000000T0000Z-150728T0400Z/
NATRONA COUNTY/CASPER BLM-JOHNSON COUNTY/CASPER BLM-
SOUTH BIGHORN MOUNTAINS-CASPER MOUNTAIN-
741 PM MDT SUN JUL 26 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM MDT MONDAY FOR
HOT...DRY...WINDY AND UNSTABLE CONDITIONS AHEAD OF A DRY COLD
FRONT PASSAGE FOR FIRE WEATHER ZONES 280...281...285 AND 300...

* AFFECTED AREA...FIRE WEATHER ZONES 280...281...285 AND 300.

* WIND...SOUTHWEST WIND INCREASING THROUGH MONDAY MORNING...
  PEAKING AT 30 TO 35 MPH ON MONDAY AFTERNOON WITH GUSTS AROUND 50
  MPH IN MORE EXPOSED AND WIND PRONE AREAS. A WIND SHIFT TO THE
  WEST- NORTHWEST WITH A DRY COLD FRONT CAN BE EXPECTED BY MONDAY
  EVENING FROM NORTHWEST TO SOUTHEAST. WINDS SHOULD DIE OFF
  RELATIVELY QUICKLY AFTER SUNSET.

* HUMIDITY...RECOVERING ABOVE 30 PERCENT THIS EVENING AT AROUND
  2200 LOCAL. THE MID SLOPES OF ZONE 285 WILL HAVE POOR RECOVERY
  AT AROUND 25 PERCENT TONIGHT. THE RELATIVE HUMIDITY WILL HIT
  CRITICAL LEVELS A BIT EARLIER ON MONDAY...BY 1100. ALL ZONES
  WILL HAVE GOOD HUMIDITY RECOVERY BEHIND THE COLD FRONT MONDAY
  NIGHT.

* OTHER...A HIGH HAINES INDEX OF 5 TO 6 IS EXPECTED AGAIN MONDAY.
  IN ADDITION...HIGH TEMPERATURES WILL BE IN THE UPPER 80S TO
  MIDDLE 90S... WHICH IS 5 TO 10 DEGREES ABOVE AVERAGE FOR THIS
  TIME OF YEAR.

* 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 MAY
LEAD TO EXTREME FIRE BEHAVIOR.

&&

$$


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