205
FNUS22 KWNS 210643
FWDDY2
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0143 AM CDT WED AUG 21 2019
VALID 221200Z - 231200Z
..SYNOPSIS
AN UPPER-LEVEL SHORTWAVE TROUGH WILL CONTINUE TO MOVE EAST-NORTHEAST
ACROSS THE NORTHERN INTERMOUNTAIN WEST TOMORROW. AN ASSOCIATED
SURFACE COLD FRONT WILL CONTINUE TO MOVE SOUTH AND EAST INTO THE
GREAT BASIN AND THROUGH MUCH OF THE NORTHERN ROCKIES AND NORTHERN
CALIFORNIA. WITH A PRE-FRONTAL SURFACE PRESSURE TROUGH RUNNING
PARALLEL AND AHEAD OF THE COLD FRONT, THE SURFACE PRESSURE GRADIENT
WILL STRENGTHEN ACROSS THE INTERMOUNTAIN WEST ALONG AND AHEAD OF THE
COLD FRONT.
ELEVATED CONDITIONS ARE EXPECTED FROM NORTHERN ARIZONA/SOUTHERN
NEVADA STRETCHING NORTHEASTWARD INTO CENTRAL WYOMING ALONG/AHEAD OF
THE SURFACE COLD FRONT. SOUTHWEST-WESTERLY SUSTAINED SURFACE WINDS
OF 15-20 MPH AND RH VALUES OF 8-20% ARE LIKELY TO DEVELOP DURING
TOMORROW AFTERNOON AND EVENING ACROSS THIS AREA. HIGH CLOUDS MAY
DRIFT INTO NORTHERN ARIZONA, WHICH COULD LIMIT THE SOUTHERN EXTENT
OF THE CURRENT ELEVATED AREA.
ELEVATED CONDITIONS ARE ALSO LIKELY TO DEVELOP ACROSS
CENTRAL/EASTERN PORTIONS OF THE SNAKE RIVER PLAIN AND VICINITY
TOMORROW AFTERNOON. THE COLD FRONT WILL HAVE PASSED THROUGH THE
AREA, BUT DAYTIME HEATING SHOULD WARM TEMPERATURES AND MIX THE
BOUNDARY LAYER ENOUGH TO RESULT IN WEST-SOUTHWEST WINDS OF 15-25 MPH
AND RH VALUES OF 15-20%.
..NAUSLAR.. 08/21/2019
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT
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