753  
FNUS22 KWNS 031935  
FWDDY2  
 
DAY 2 FIRE WEATHER OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
0134 PM CST FRI DEC 03 2021  
 
VALID 041200Z - 051200Z  
   
..NO CRITICAL AREAS
 
 
THE PREVIOUS FORECAST REMAINS ON TRACK, AND NO CHANGES WERE MADE  
WITH THIS OUTLOOK. A PERIOD OF LOCALLY ENHANCED FIRE-WEATHER  
CONDITIONS REMAINS LIKELY ACROSS PORTIONS OF EASTERN WYOMING DURING  
THE AFTERNOON HOURS, THOUGH THE THREAT APPEARS TOO LOCALIZED AND  
BRIEF TO WARRANT HIGHLIGHTS AT THIS TIME. THE LATEST SHORT-TERM  
MODEL GUIDANCE CONTINUES TO DEPICT ONLY A SMALL OVERLAP OF  
BREEZY/GUSTY WESTERLY SURFACE WINDS AND LOW RH, WITH THE STRONGER  
SURFACE FLOW DISPLACED WESTWARD (ACROSS THE HIGHER TERRAIN) FROM THE  
BETTER DOWNSLOPE RELATED RH REDUCTIONS.  
 
A MODEST OFFSHORE SURFACE PRESSURE GRADIENT AND STRENGTHENING  
NORTH-NORTHEASTERLY FLOW ALOFT WILL CONTRIBUTE TO INCREASING SURFACE  
WINDS AND LOW RH ACROSS TERRAIN-FAVORED AREAS OF SOUTHERN CALIFORNIA  
FROM SATURDAY AFTERNOON THROUGH SUNDAY. WHILE LOCALLY ENHANCED  
FIRE-WEATHER CONDITIONS WILL BE LIKELY, THE HIGHER THREAT APPEARS TO  
BE ON SUNDAY AS THE OFFSHORE PRESSURE GRADIENT STRENGTHENS.  
THEREFORE, NO DELINEATIONS HAVE BEEN INTRODUCED FOR SATURDAY AT THIS  
TIME.  
 
..WEINMAN/MOORE.. 12/03/2021  
   
PREV DISCUSSION
 
/ISSUED 0115 AM CST FRI DEC 03 2021/  
   
..SYNOPSIS
 
 
A STRONG NORTHERN JET STREAM WILL BEGIN TO AMPLIFY ON SUNDAY. A  
SHORTWAVE TROUGH WILL DEVELOP AND DIG SOUTHWARD THROUGH THE NORTHERN  
ROCKIES. AT THE SURFACE, A CYCLONE WILL DEEPEN IN THE LEE OF THE  
HIGHER TERRAIN OF EASTERN MONTANA AND EASTERN WYOMING. WITHIN THE  
GREAT BASIN, HIGHER SURFACE PRESSURE IS EXPECTED TO DEVELOP ALONG  
WITH STRONGER NORTHERLY WINDS ALOFT ON THE WESTERN FLANK OF THE  
DIGGING TROUGH.  
   
..EASTERN WYOMING
 
 
TEMPERATURES IN THE SURROUNDING REGION MAY BE SLIGHTLY COOLER OWING  
THE RECENT COLD FRONT. HOWEVER, STRONG DOWNSLOPE WINDS WILL HELP TO  
WARM AND DRY THE AIRMASS IN THE IMMEDIATE LEE OF THE BIG HORNS AND  
THE LARAMIE RANGE. WITH FUELS REMAINING DRY, LOCALLY ELEVATED  
CONDITIONS ARE PROBABLE. CONFIDENCE IN WINDS OF 15-25 MPH IS  
RELATIVELY HIGH. CONFIDENCE IN BROADLY LOW RH IS NOT AS HIGH. WITH  
CONDITIONS SO SPATIALLY LIMITED, NO HIGHLIGHTS WILL BE ADDED.  
   
..SOUTHERN CALIFORNIA
 
 
LOCALLY ELEVATED CONDITIONS ARE POSSIBLE IN THE HIGHER TERRAIN  
TOWARDS LATE SUNDAY AND EARLY MONDAY. TERRAIN-FAVORED AREAS COULD  
SEE 15-25 MPH WITH RH OF 15-20%. UPPER-LEVEL WINDS WILL FAVOR  
STRONGER GUSTS. RECENT MODEL GUIDANCE HAS SHOWS AN OVERALL  
DECREASING TREND IN THE OFFSHORE PRESSURE GRADIENT STRENGTH.  
SUSTAINED ELEVATED FIRE WEATHER CONDITIONS STILL APPEAR TOO  
LOCALIZED TO WARRANT HIGHLIGHTS.  
   
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT
 
 

 
 
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