960
FNUS85 KVEF 171035
FWLVEF
ECCDA DISCUSSIONS
NATIONAL WEATHER SERVICE LAS VEGAS NV
335 AM PDT SUN MAY 17 2026
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## DISCUSSIONS FROM THE LATEST FWF BELOW ##
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..DISCUSSION FROM RNOFWFVEF
GUSTY SOUTHWESTERLY WINDS INTENSIFY AREAWIDE TODAY BEFORE A FRONTAL
PASSAGE CAUSES A SHIFT TO THE NORTH TO NORTHWEST THIS AFTERNOON AND
EVENING. THERE WILL BE WIDESPREAD GUSTS BETWEEN 40 AND 55 MPH WITH
ISOLATED STRONGER GUSTS IN EXCESS OF 60 MPH IN SECTIONS OF SOUTHERN
NEVADA AND SOUTHEASTERN CALIFORNIA. PRECIPITATION IS NOT EXPECTED
OUTSIDE OF EASTERN LINCOLN COUNTY. MINIMUM HUMIDITY FALLS TO THE
10 TO 20 PERCENT RANGE THIS AFTERNOON. ELEVATED TO CRITICAL FIRE
WEATHER CONDITIONS CONTINUE THROUGH THIS EVENING WHERE FUELS ARE
RECEPTIVE. AFTERWARDS, EXPECT DRY CONDITIONS AND WARMING
TEMPERATURES THROUGH THE END OF THE WEEK.
..DISCUSSION FROM LAXFWFSGX
SOUTHWEST TO WEST WINDS WILL CONTINUE FOR THE MOUNTAINS AND
DESERTS THROUGH THIS EVENING, GUSTING TO 40 TO 50 MPH WITH ISOLATED
GUSTS TO 65 MPH BY LATER THIS AFTERNOON. THIS, ALONG WITH MINIMUM
AFTERNOON RH 12-20% IN THE DESERTS, WILL RESULT IN METEOROLOGICAL
CONDITIONS BEING FAVORABLE FOR FIRE GROWTH AND SPREAD ACROSS THE
HIGH DESERT DURING THE AFTERNOON TODAY, ALTHOUGH FUELS ARE STILL NOT
YET CRITICAL AND OVERNIGHT RECOVERIES WILL BE MODERATE TO GOOD OVER
THE WEEKEND. ELSEWHERE, EXPECT BREEZY, COOL WEATHER THROUGH THE
WEEKEND AND MORE PERSISTENT CLOUD COVER FOR THE COASTAL BASIN.
WINDS FOR THE DESERTS WILL WEAKEN AND BECOME NORTHEASTERLY
TOMORROW, WITH GENERALLY WEAK WINDS TUESDAY THROUGH THE END OF NEXT
WEEK. GRADUAL WARMING AND DRIER CONDITIONS EXPECTED MONDAY THROUGH
THE MIDDLE OF NEXT WEEK WITH WEAK OFFSHORE FLOW, THEN A GRADUAL
COOLING FROM THURSDAY INTO THE FOLLOWING WEEKEND. LOWEST DAYTIME
HUMIDITY FOR THE DESERTS WILL FALL TO 5-10 PERCENT EACH DAY FOR
MONDAY THROUGH THURSDAY.
..DISCUSSION FROM PHXFWFPSR
ELEVATED AND MARGINALLY CRITICAL FIRE WEATHER CONDITIONS ARE
EXPECTED THIS AFTERNOON AND EVENING FOR A FEW HOURS AS WINDS
INCREASE ACROSS THE REGION. A RED FLAG WARNING REMAINS IN EFFECT FOR
SOUTHERN GILA COUNTY AND THE TONTO NATIONAL FOREST FOR THIS
AFTERNOON THROUGH THIS EVENING. THE WINDS WILL LIKELY STEADILY
INCREASE THROUGH THE AFTERNOON, WITH PEAK WIRE WEATHER CONDITIONS
(STRONGEST WINDS AND LOWEST RH) LIKELY BETWEEN 1500-2000MST. WIND
GUSTS IN THE WARNED AREA WILL PEAK AROUND 25-35 MPH AND RH VALUES
WILL MINIMIZE AROUND 10-15%. WHILE RH INCREASES ABOVE CRITICAL
LEVELS AFTER 2000MST THE ELEVATED BREEZES ARE LIKELY TO CONTINUE
THROUGH MIDNIGHT, WHICH MAY MAKE CONTROLLING ANY NEW/EXISTING FIRES
CHALLENGING. WIND GUSTS UP TO 25-35 MPH WILL BE COMMON ACROSS ALL
DISTRICTS THIS AFTERNOON, BUT WILL BE STRONGEST ACROSS SOUTHEAST CA
WITH WESTERLY SUNDOWNER WINDS IN IMPERIAL COUNTY UP TO 40-50 MPH AND
NORTHERLY GUSTS UP TO 35-50 MPH ACROSS MUCH OF EASTERN RIVERSIDE
COUNTY LATER TONIGHT THROUGH EARLY MONDAY FOLLOWING A COLD FRONT
PASSAGE AROUND MIDNIGHT. THERE WILL BE VERY DRY AIR FOLLOWING THE
FRONT THAT WILL CREATE ELEVATED FIRE CONDITIONS ACROSS RIVERSIDE
COUNTY, EVEN DURING THE OVERNIGHT HOURS. MINIMUM RH VALUES WILL BE
CLOSER TO 15-20% ACROSS THE WESTERN DISTRICTS. LINGERING NORTHERLY
BREEZINESS DOWN THE LOWER COLORADO RIVER IS EXPECTED MONDAY, BUT
THIS GRADIENT WIND SHOULD WEAKEN HEADING INTO THE AFTERNOON AND
WINDS ELSEWHERE MONDAY AFTERNOON WILL BE WEAKER THAN TODAY WITH
GUSTS UP TO 15-25 MPH.
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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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ECC027-180445-
SAN BERNARDINO ECC DISPATCH-
DISCUSSION FOR SAN BERNARDINO ECC DISPATCH
335 AM PDT SUN MAY 17 2026
GUSTY SOUTHWESTERLY WINDS INTENSIFY AREAWIDE TODAY BEFORE A FRONTAL
PASSAGE CAUSES A SHIFT TO THE NORTH TO NORTHWEST THIS AFTERNOON AND
EVENING. THERE WILL BE WIDESPREAD GUSTS BETWEEN 40 AND 55 MPH WITH
ISOLATED STRONGER GUSTS IN EXCESS OF 60. PRECIPITATION IS NOT
EXPECTED. MINIMUM HUMIDITY FALLS TO THE 10 TO 20 PERCENT RANGE
THIS AFTERNOON. ELEVATED TO CRITICAL FIRE WEATHER CONDITIONS
CONTINUE THROUGH THIS EVENING WHERE FUELS ARE RECEPTIVE.
AFTERWARDS, EXPECT DRY CONDITIONS AND WARMING TEMPERATURES THROUGH
THE END OF THE WEEK.
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