553
FNUS21 KWNS 091642
FWDDY1
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1141 AM CDT MON JUN 09 2025
VALID 091700Z - 101200Z
..NO CRITICAL AREAS
..17Z UPDATE CASCADE GAPS
INCREASING WESTERLY FLOW ALOFT IS FORECAST TO MOVE OVER THE CASCADES
AND WESTERN COLUMBIA BASIN LATER TODAY AND INTO TONIGHT. AS FLOW
ALOFT STRENGTHENS, WESTERLY DOWNSLOPE WINDS AND LEE TROUGHING WILL
ENCOURAGE DOWNSLOPE WIND GUSTS OF 15-25 MPH THROUGH THE CASCADE GAPS
AND GORGE. THESE GUSTY WIND MAY OVERLAP WITH AREAS OF MODERATE TO
LOW RH (30-40%) THROUGH THE AFTERNOON. WHILE LIVE AREA FUELS ARE NOT
OVERLY DRY, SOME LOCALIZED FIRE-WEATHER RISK IS POSSIBLE THIS
AFTERNOON INTO TONIGHT. WINDS WILL REMAIN GUSTY OVERNIGHT, THOUGH
INCREASING HUMIDITY AND LIGHT RAIN CHANCES SHOULD TEMPER THE THREAT.
..SOUTHWEST
A BACKDOOR COLD FRONT MOVING OVER EASTERN NM WILL HELP TRANSPORT
MODERATE MID-LEVEL AND SURFACE MOISTURE WEST INTO THE HIGHER
TERRAIN. WEAK ASCENT FROM A SUBTLE SOUTHERN STREAM TROUGH UNDER THE
RIDGE AND UPSLOPE FLOW SHOULD SUPPORT ISOLATED TO SCATTERED
THUNDERSTORMS THIS AFTERNOON. MODEL PROFILES SHOW DRY SUB-CLOUD
LAYERS PARTICULARLY OVER WESTERN/SOUTHWESTERN NM AND SOUTHEASTERN
AZ, WHICH SHOULD FAVOR RELATIVELY POOR PRECIPITATION EFFICIENCY.
WHILE THESE STORMS ARE LIKELY TO BE DRIER, THE OVERLAP OF THE BEST
STORM COVERAGE SHOULD REMAIN OVER AREAS THAT HAVE SEEN SIGNIFICANT
RAINFALL OVER THE LAST WEEK. STILL, OCCASIONAL DRY LIGHTNING STRIKES
ARE POSSIBLE ON THE FRINGES OF THE DEEPER MOISTURE WITH THE DRIER
STORMS ATOP THE MORE RECEPTIVE FUELS.
..LYONS.. 06/09/2025
PREV DISCUSSION
/ISSUED 0156 AM CDT MON JUN 09 2025/
..SYNOPSIS
A MID-LEVEL TROUGH WILL PROGRESS ACROSS THE EASTERN U.S. WHILE UPPER
RIDGING CONTINUES TO BUILD OVER THE CONUS WEST OF THE ROCKIES TODAY.
SCATTERED TO WIDESPREAD SHOWERS AND THUNDERSTORMS, ALONG WITH RICH
LOW-LEVEL MOISTURE, WILL OVERSPREAD MUCH OF THE CONUS EAST OF THE
ROCKIES, LIMITING MAJOR WILDFIRE-SPREAD CONCERNS. WEST OF THE
ROCKIES, WARM AND DRY CONDITIONS WILL BECOME COMMON, THOUGH THE LACK
OF A STRONGER SURFACE WIND FIELD SHOULD LIMIT ROBUST WILDFIRE-SPREAD
CONDITIONS. DRY NORTHWESTERLY SURFACE FLOW BEHIND A COLD FRONT WILL
OVERSPREAD THE CENTRAL AND NORTHERN HIGH PLAINS DURING THE
AFTERNOON, BUT THE LACK OF MORE RECEPTIVE FUELS PRECLUDES FIRE
WEATHER HIGHLIGHTS THIS OUTLOOK.
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT
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