FNUS85 KVEF 200944 FWLVEF ECCDA DISCUSSIONS NATIONAL WEATHER SERVICE LAS VEGAS NV 244 AM PDT WED MAY 20 2026 ##################################################################### ## ## ## DISCUSSIONS FROM THE LATEST FWF BELOW ## ## ## ##################################################################### ...DISCUSSION FROM RNOFWFVEF... DRY CONDITIONS WITH SINGLE-DIGIT AFTERNOON RELATIVE HUMIDITIES WILL CONTINUE THROUGH THE WEEKEND WITH PERIODS OF AFTERNOON BREEZES. EXPECT OVERNIGHT RECOVERIES BETWEEN 15 AND 25 PERCENT FOR DESERT VALLEYS AND ABOVE 30 PERCENT FOR HIGHER ELEVATIONS. AFOREMENTIONED BREEZES WILL GENERALLY RANGE FROM 10 TO 20 MPH FROM THE NORTH-NORTHWEST THROUGH THURSDAY, THEN FROM THE SOUTH-SOUTHWEST. ...DISCUSSION FROM LAXFWFSGX... LOWEST DAYTIME HUMIDITY FOR THE DESERTS WILL REMAIN AROUND 10 PERCENT THROUGH THURSDAY WITH THE MOUNTAINS AND INLAND VALLEYS FALLING TO 8 TO 15 PERCENT TODAY WITH WEAK OFFSHORE FLOW INLAND. GRADUAL WARMING WILL CONTINUE FOR THE MOUNTAINS AND DESERTS THROUGH THURSDAY WHILE THE COAST AND VALLEYS BEGIN TO COOL. FOR FRIDAY THROUGH TUESDAY, NOT MUCH CHANGE IN HIGH TEMPERATURES IS EXPECTED FOR THE MOUNTAINS AND DESERTS WHILE THE COAST AND VALLEYS COOL A FEW DEGREES. LOWEST DAYTIME HUMIDITY FOR THE DESERTS WILL RECOVER TO 10 TO 15 PERCENT FOR FRIDAY THROUGH TUESDAY. ...DISCUSSION FROM PHXFWFPSR... UNDER CONTINUED DRY AND WELL MIXED CONDITIONS, TEMPERATURES WILL HOVER AROUND THE SEASONAL NORMAL THROUGH THURSDAY. MINIMUM AFTERNOON HUMIDITY LEVELS IN A 5-15% RANGE WILL BE COMMON FOLLOWING POOR TO FAIR OVERNIGHT RECOVERY OF 15-35%. WINDS WILL MAINTAIN A NOCTURNAL DRAINAGE/DIURNAL UPSLOPE COMPONENT WITH FREQUENT AFTERNOON GUSTS 15-25 MPH. ##################################################################### ## ## ## AFTER REVIEWING THE FWF DISCUSSIONS (ABOVE) - COMPLETE ## ## THE DISCUSSION (BELOW) FOR THE ECCDA FORECAST ## ## WHEN DONE CLICK TRANSMIT, PRODUCT SENT AS KVEFFWLVEF ## ## ## ##################################################################### ECC027-210345- SAN BERNARDINO ECC DISPATCH- DISCUSSION FOR SAN BERNARDINO ECC DISPATCH 244 AM PDT WED MAY 20 2026 DRY CONDITIONS WITH SINGLE-DIGIT AFTERNOON RELATIVE HUMIDITIES WILL CONTINUE THROUGH THE WEEKEND WITH PERIODS OF AFTERNOON BREEZES. EXPECT OVERNIGHT RECOVERIES BETWEEN 15 AND 25 PERCENT FOR DESERT VALLEYS AND ABOVE 30 PERCENT FOR HIGHER ELEVATIONS. AFOREMENTIONED BREEZES WILL GENERALLY RANGE FROM 10 TO 20 MPH FROM THE NORTH-NORTHWEST THROUGH THURSDAY, THEN FROM THE SOUTH-SOUTHWEST. $$