Land Management Forecasts
Issued by NWS Las Vegas, NV
Issued by NWS Las Vegas, NV
576 FNUS85 KVEF 202054 FWLVEF ECCDA DISCUSSIONS NATIONAL WEATHER SERVICE LAS VEGAS NV 154 PM PDT WED AUG 20 2025 ##################################################################### ## ## ## DISCUSSIONS FROM THE LATEST FWF BELOW ## ## ## ##################################################################### ...DISCUSSION FROM RNOFWFVEF... ABOVE-NORMAL TEMPERATURES PERSIST THROUGH THE WEEKEND WHILE MOISTURE GRADUALLY INCREASES. PRECIPITATION CHANCES RISE AS WELL, BEGINNING IN EASTERN MOHAVE AND EASTERN LINCOLN COUNTIES TOMORROW. BY THE WEEKEND, SCATTERED SHOWERS AND STORMS WILL BE POSSIBLE ACROSS THE AREA, ESPECIALLY IN THE HIGHER TERRAIN. ISOLATED DRY LIGHTNING IS POSSIBLE WITH CONVECTION ALONG THE WESTERN EDGE OF THE MOISTURE (MAINLY THURSDAY AND FRIDAY), BUT ONCE MOISTURE BECOMES ENTRENCHED THIS WEEKEND, THE DRY LIGHTNING THREAT SHOULD BE GREATLY TEMPERED. THE PRIMARY STORM HAZARDS WILL BE FLASH FLOODING AND STRONG OUTFLOW WINDS. ...DISCUSSION FROM LAXFWFSGX... AN ELEVATED FIRE WEATHER RISK REMAINS DUE TO THE HOT WEATHER EXPECTED AS WELL AS ANY CLOUD TO GROUND LIGHTNING ASSOCIATED WITH ANY THUNDERSTORMS THAT OCCUR. THE WARMEST TEMPERATURES OF THE WEEK WILL OCCUR ON THURSDAY AND FRIDAY WITH HIGHS IN THE TRIPLE DIGITS FOR THE INLAND VALLEYS AND DESERT REGIONS. MONSOONAL MOISTURE WILL SUBTLY INCREASE ON THURSDAY AND FRIDAY, WITH MINIMAL CHANCES FOR THUNDERSTORM ACTIVITY ON THURSDAY AND SLIGHTLY HIGHER ON FRIDAY. THE GREATEST CHANCE OF THUNDERSTORMS WILL BE OVER THE WEEKEND WITH CLOUD TO GROUND LIGHTNING, GUSTY WINDS AND HEAVY DOWNPOURS WHERE STORMS OCCUR ACROSS THE MOUNTAINS AND DESERTS, LOCALLY INTO ADJACENT VALLEYS. A FEW DEGREES OF COOLING WILL BE EXPECTED BY THE WEEKEND WITH FURTHER COOLING NEAR AVERAGE BY EARLY NEXT WEEK. THE CHANCES FOR MOUNTAIN AND DESERT THUNDERSTORMS WILL CONTINUE INTO EARLY NEXT WEEK AS WELL. THE MARINE LAYER WILL BE THIN WITH CLOUDS AND FOG NEAR THE COAST EACH MORNING, WITH SOME AREAS REMAINING CLEAR. THE MARINE LAYER WILL DEEPEN BY EARLY NEXT WEEK WITH LOW CLOUDS AND FOG ALONG THE COAST INTO WESTERN VALLEYS. ...DISCUSSION FROM PHXFWFPSR... WELL ABOVE NORMAL TEMPERATURES ARE EXPECTED THROUGH AT LEAST THE NEXT COUPLE OF DAYS AS TEMPERATURES APPROACH RECORD LEVELS. ADDITIONALLY, MOISTURE WILL CONTINUE TO INCREASE ACROSS THE AREA, LEADING TO INCREASING THUNDERSTORM CHANCES. THUNDERSTORM CHANCES THROUGH THE REST OF THIS AFTERNOON AND EVENING WILL REMAIN PRIMARILY CONFINED TO THE HIGHER TERRAIN EAST OF PHOENIX WITH CHANCES IN PHOENIX LESS THAN 15%. FOR THURSDAY, THUNDERSTORM CHANCES FURTHER INCREASE WITH BETTER INDICATIONS FOR THUNDERSTORMS TO SURVIVE INTO THE LOWER DESERTS. THE PRIMARY THREATS WITH ANY STRONGER THUNDERSTORMS WILL BE LIGHTNING AND GUSTY, ERRATIC OUTFLOW WINDS. CHANCES FOR SEEING OUTFLOW WIND GUSTS IN EXCESS OF 35 MPH TODAY AND TOMORROW CLIMB UPWARDS OF 50-70% FOR SOUTHERN GILA, EASTERN MARICOPA, AND NW PINAL COUNTIES, WITH A 10% CHANCE OF SEEING GUSTS IN EXCESS OF 58 MPH TOMORROW. OUTSIDE OF ANY THUNDERSTORMS, WINDS WILL OVERALL CONTINUE TO FAVOR DIURNAL UPSLOPE/DOWNVALLEY PATTERNS WITH OCCASIONAL AFTERNOON GUSTS AROUND 15-20 MPH. MIN RHS WILL REMAIN AROUND 15-25% OVER THE NEXT COUPLE OF DAYS, WHILE OVERNIGHT MAX RHS INCREASE TO UPWARDS OF 30-50% FOR MOST AREAS. ##################################################################### ## ## ## AFTER REVIEWING THE FWF DISCUSSIONS (ABOVE) - COMPLETE ## ## THE DISCUSSION (BELOW) FOR THE ECCDA FORECAST ## ## WHEN DONE CLICK TRANSMIT, PRODUCT SENT AS KVEFFWLVEF ## ## ## ##################################################################### ECC027-211500- SAN BERNARDINO ECC DISPATCH- DISCUSSION FOR SAN BERNARDINO ECC DISPATCH 154 PM PDT WED AUG 20 2025 ABOVE-NORMAL TEMPERATURES PERSIST THROUGH THE WEEKEND WHILE MOISTURE GRADUALLY INCREASES. PRECIPITATION CHANCES RISE AS WELL, BEGINNING IN EASTERN MOHAVE AND EASTERN LINCOLN COUNTIES TOMORROW. BY THE WEEKEND, SCATTERED SHOWERS AND STORMS WILL BE POSSIBLE ACROSS THE AREA, ESPECIALLY IN THE HIGHER TERRAIN. ISOLATED DRY LIGHTNING IS POSSIBLE WITH CONVECTION ALONG THE WESTERN EDGE OF THE MOISTURE (MAINLY THURSDAY AND FRIDAY), BUT ONCE MOISTURE BECOMES ENTRENCHED THIS WEEKEND, THE DRY LIGHTNING THREAT SHOULD BE GREATLY TEMPERED. THE PRIMARY STORM HAZARDS WILL BE FLASH FLOODING AND STRONG OUTFLOW WINDS. $$