Red Flag Warning
Issued by NWS Riverton, WY

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WWUS85 KRIW 050855
RFWRIW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
255 AM MDT SAT SEP 5 2015

...ELEVATED TO EXTREME FIRE DANGER THIS AFTERNOON THROUGH
SUNDAY...

.DRY SOUTHWEST WINDS WILL STRENGTHEN THIS AFTERNOON AHEAD OF AN
APPROACHING COLD FRONT. ISOLATED TO WIDELY SCATTERED THUNDERSTORMS
WILL DEVELOP AHEAD OF THE COLD FRONT AND SPREAD INTO CENTRAL
WYOMING LATE THIS AFTERNOON THROUGH TONIGHT. THE STRONG COLD
FRONT WILL PUSH ACROSS THE AREA THIS EVENING WITH A SHARP WIND
SHIFT FROM THE WEST TO NORTHWEST. A VERY DRY AND GUSTY WEST
NORTHWEST FLOW WILL FOLLOW THE COLD FRONT ON SUNDAY.

WYZ280-283-289-060700-
/O.CON.KRIW.FW.W.0018.150905T1900Z-150907T0300Z/
NATRONA COUNTY/CASPER BLM-UPPER WIND RIVER BASIN/WIND RIVER BASIN-
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-
255 AM MDT SAT SEP 5 2015

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
9 PM MDT SUNDAY FOR STRONG WIND...LOW HUMIDITY AND CRITICAL
LIGHTNING FOR FIRE WEATHER ZONES 280... 283 AND 289...

* AFFECTED AREA...FIRE WEATHER ZONE 280. FIRE WEATHER ZONE 283.
  FIRE WEATHER ZONE 289.

* WIND...SOUTHWEST WIND 15 TO 25 MPH WITH GUSTS 35 TO 40 MPH THIS
  AFTERNOON. A COLD FRONT WILL SHIFT WINDS WEST TO NORTHWEST 15 TO
  25 MPH WITH GUSTS 30 TO 35 MPH TONIGHT... CONTINUING THROUGH
  EARLY SUNDAY EVENING.

* MINIMUM RELATIVE HUMIDITY...12 TO 15 PERCENT THIS AFTERNOON.
  NEAR 10 PERCENT SUNDAY AFTERNOON.

* LIGHTNING...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS POSSIBLE
  LATE THIS AFTERNOON AND TONIGHT.

* 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.

&&

$$


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