903
FNUS85 KVEF 250914
FWLVEF
ECCDA DISCUSSIONS
NATIONAL WEATHER SERVICE LAS VEGAS NV
214 AM PDT THU JUN 25 2026
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## DISCUSSIONS FROM THE LATEST FWF BELOW ##
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..DISCUSSION FROM RNOFWFVEF
SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON OVER
PORTIONS OF NORTHERN MOHAVE COUNTY, WITH ERRATIC GUSTY WINDS AND
LIGHTNING THE PRIMARY CONCERNS, AND WETTING RAIN NOT EXPECTED. DRY
CONDITIONS ARE EXPECTED ELSEWHERE, WITH A SUBSTANTIAL INCREASE IN
SOUTHERLY TO SOUTHWESTERLY WINDS FRIDAY AND SATURDAY EXPECTED TO
EXACERBATE THE DRYING TREND. MIN RHS WILL DROP TO 5-15% FRIDAY AND
SATURDAY, WITH POOR NOCTURNAL RECOVERY. 20FT WINDS WILL REACH
UPWARDS OF 20 TO 30 MPH, WITH GUSTS TO 40 TO 50 MPH, POSSIBLY HIGHER
IN TERRAIN-FAVORED AREAS. THIS WILL YIELD CRITICAL FIRE WEATHER
CONDITIONS WITH HIGH FIRE DANGER, AND POTENTIAL REALIZATION OF NEW
LIGHTNING-STARTED WILDFIRES. COOLER TEMPERATURES AND LESS WINDY
CONDITIONS PROVIDE RELIEF SUNDAY THROUGH MIDWEEK.
..DISCUSSION FROM LAXFWFSGX
A STRONG LOW PRESSURE SYSTEM TO THE NORTH WILL BRING THROUGH
ONSHORE FLOW AND A COOLING THROUGH THE WEEKEND. A MARINE LAYER NEAR
2000 TO 2500 FEET DEEP WILL DEEPEN TO AROUND 4000 FEET OVER THE
WEEKEND, THEN DECREASE TO AROUND 2500 FEET BY THE MIDDLE OF NEXT
WEEK. SOUTHWEST TO WEST WINDS FOR THE MOUNTAINS AND DESERTS DURING
THE AFTERNOON WILL STRENGTHEN THROUGH SATURDAY WITH GUSTS ON
SATURDAY OF 35 TO 45 MPH WITH GUSTS TO 75 MPH IN THE NORTHERN
COACHELLA VALLEY BELOW THE SAN GORGONIO PASS. LOWEST HUMIDITY FOR
THE LOWER DESERTS WILL FALL TO AROUND 10 PERCENT DURING THE
AFTERNOON AND EARLY EVENING FOR TODAY AND FRIDAY WITH NEAR
CRITICAL FIRE WEATHER CONDITIONS FOR THE DESERTS ONTO THE DESERT
SLOPES OF THE MOUNTAINS. THEN GRADUALLY WARMER NEXT WEEK WITH HIGH
TEMPERATURES RETURNING TO NEAR AVERAGE SOME TIME LATE NEXT WEEK.
..DISCUSSION FROM PHXFWFPSR
ELEVATED FIRE DANGER WILL CONTINUE TODAY DUE TO LOW HUMIDITY,
VERY WARM TEMPERATURES, AND AFTERNOON UPSLOPE/UPVALLEY BREEZY
CONDITIONS WITH CRITICAL CONDITIONS DEVELOPING FRIDAY. MINRHS
TODAY WILL FALL INTO THE SINGLE DIGITS ACROSS THE WESTERN
DISTRICTS, BUT CLOSER TO 20% IN THE EAST. THESE VALUES WILL FALL
CLOSER TO 5-15% STARTING FRIDAY. WINDS WILL GENERALLY REMAIN
TERRAIN DRIVEN TODAY WITH UPSLOPE GUSTS DURING THE LATTER HALF OF
THE AFTERNOON PEAKING AROUND 25 MPH. GUSTS ARE EXPECTED TO
INCREASE INTO A 20-35 MPH RANGE FRIDAY WITH A RISK OF EXTREME FIRE
BEHAVIOR.
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## AFTER REVIEWING THE FWF DISCUSSIONS (ABOVE) - COMPLETE ##
## THE DISCUSSION (BELOW) FOR THE ECCDA FORECAST ##
## WHEN DONE CLICK TRANSMIT, PRODUCT SENT AS KVEFFWLVEF ##
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ECC027-260315-
SAN BERNARDINO ECC DISPATCH-
DISCUSSION FOR SAN BERNARDINO ECC DISPATCH
214 AM PDT THU JUN 25 2026
A DRYING TREND BEGINS ACROSS SAN BERNARDINO COUNTY TODAY, WITH RHS
DROPPING TO 7-10%. A SUBSTANTIAL INCREASE IN SOUTHERLY TO
SOUTHWESTERLY WINDS FRIDAY AND SATURDAY WILL EXACERBATE THE DRYING
TREND WITH MIN RHS AROUND 5-10% FRIDAY AND 10-15% SATURDAY, ALONG
WITH POOR NOCTURNAL RECOVERY. 20FT WINDS WILL REACH UPWARDS OF 20
TO 30 MPH, WITH GUSTS TO 40 TO 50 MPH, POSSIBLY HIGHER IN
TERRAIN-FAVORED AREAS. THIS WILL YIELD POTENTIAL FOR EXTREME FIRE
BEHAVIOR, WITH CONCERN FOR NEW WILDFIRES DUE TO LIGHTNING STRIKES
FROM THUNDERSTORMS TUESDAY NIGHT AND WEDNESDAY. COOLER
TEMPERATURES AND LESS WINDY CONDITIONS PROVIDE RELIEF SUNDAY
THROUGH MIDWEEK.
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