157 FNUS86 KSTO 181001 FWLSTO ECCDA DISCUSSIONS FOR CALIFORNIA NATIONAL WEATHER SERVICE SACRAMENTO CA 301 AM PDT MON MAY 18 2026 ECC005-190415- SHASTA-TRINITY NATIONAL FOREST- DISCUSSION FOR REDDING ECC DISPATCH 301 AM PDT MON MAY 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONES 124,142,144,145,146,148,149,150, 152,153,154,155,156,157,158,159, 160,161,163 AND 164... ...GUSTY WINDS AND VERY DRY CONDITIONS WILL SUPPORT HIGH FIRE DANGER FOR EASTERN MENDOCINO, TRINITY, AND LAKE COUNTIES EARLY TODAY... STRONG AND GUSTY NORTH TO EAST WINDS AND LOW HUMIDITY ARE EXPECTED TODAY, WITH DAYTIME HUMIDITY IN THE SINGLE DIGITS TO TEENS AND WIND GUSTS UP TO 40 MPH, LOCALLY UP TO 50 MPH IN THE DELTA AND IN THE MOUNTAINS. THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL BRING CRITICAL FIRE WEATHER CONDITIONS FOR THE VALLEY INTO THIS EVENING. TEMPERATURES WILL THEN RISE TO WELL ABOVE NORMAL MID TO LATE THIS WEEK, ALONG WITH CONTINUED LOW HUMIDITY, WHICH COULD BRING ELEVATED FIRE WEATHER CONCERNS. DRY AND STABLE CONDITONS ARE EXPECTED. $$ ECC007-190415- MENDOCINO NATIONAL FOREST, SOUTHERN SACRAMENTO VALLEY, AND DELTA- DISCUSSION FOR WILLOWS ECC DISPATCH 301 AM PDT MON MAY 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONES 124,142,144,145,146,148,149,150, 152,153,154,155,156,157,158,159, 160,161,163 AND 164... ...GUSTY WINDS AND VERY DRY CONDITIONS WILL SUPPORT HIGH FIRE DANGER FOR EASTERN MENDOCINO, TRINITY, AND LAKE COUNTIES EARLY TODAY... STRONG AND GUSTY NORTH TO EAST WINDS AND LOW HUMIDITY ARE EXPECTED TODAY, WITH DAYTIME HUMIDITY IN THE SINGLE DIGITS TO TEENS AND WIND GUSTS UP TO 40 MPH, LOCALLY UP TO 50 MPH IN THE DELTA AND IN THE MOUNTAINS. THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL BRING CRITICAL FIRE WEATHER CONDITIONS FOR THE VALLEY AND DELTA INTO THIS EVENING. TEMPERATURES WILL THEN RISE TO WELL ABOVE NORMAL MID TO LATE THIS WEEK, ALONG WITH CONTINUED LOW HUMIDITY, WHICH COULD BRING ELEVATED FIRE WEATHER CONCERNS. $$ ECC008-190415- RED BLUFF AND OROVILLE- DISCUSSION FOR RED BLUFF AND OROVILLE ECC DISPATCH 301 AM PDT MON MAY 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONES 124,142,144,145,146,148,149,150, 152,153,154,155,156,157,158,159, 160,161,163 AND 164... STRONG AND GUSTY NORTH TO EAST WINDS AND LOW HUMIDITY ARE EXPECTED TODAY, WITH DAYTIME HUMIDITY IN THE SINGLE DIGITS TO TEENS AND WIND GUSTS UP TO 40 MPH, LOCALLY UP TO 50 MPH IN THE DELTA AND IN THE MOUNTAINS. THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL BRING CRITICAL FIRE WEATHER CONDITIONS FOR THE VALLEY INTO THIS EVENING. TEMPERATURES WILL THEN RISE TO WELL ABOVE NORMAL MID TO LATE THIS WEEK, ALONG WITH CONTINUED LOW HUMIDITY, WHICH COULD BRING ELEVATED FIRE WEATHER CONCERNS. $$ ECC011-190415- TAHOE NATIONAL FOREST- DISCUSSION FOR GRASS VALLEY ECC DISPATCH 301 AM PDT MON MAY 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONES 124,142,144,145,146,148,149,150, 152,153,154,155,156,157,158,159, 160,161,163 AND 164... STRONG AND GUSTY NORTH TO EAST WINDS AND LOW HUMIDITY ARE EXPECTED TODAY, WITH DAYTIME HUMIDITY IN THE SINGLE DIGITS TO TEENS AND WIND GUSTS UP TO 40 MPH, LOCALLY UP TO 50 MPH IN THE DELTA AND IN THE MOUNTAINS. THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL BRING CRITICAL FIRE WEATHER CONDITIONS FOR THE VALLEY INTO THIS EVENING. TYPICAL AFTERNOON ZEPHYR WESTERLY BREEZES RETURN OVER THE SIERRA BY WEDNESDAY. TEMPERATURES WILL THEN RISE TO WELL ABOVE NORMAL MID TO LATE THIS WEEK, ALONG WITH CONTINUED LOW HUMIDITY, WHICH COULD BRING ELEVATED FIRE WEATHER CONCERNS. $$ ECC015-190415- STANISLAUSNATIONAL FOREST- DISCUSSION FOR SAN ANDREAS ECC DISPATCH 301 AM PDT MON MAY 18 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONES 124,142,144,145,146,148,149,150, 152,153,154,155,156,157,158,159, 160,161,163 AND 164... STRONG AND GUSTY NORTH TO EAST WINDS AND LOW HUMIDITY ARE EXPECTED TODAY, WITH DAYTIME HUMIDITY IN THE SINGLE DIGITS TO TEENS AND WIND GUSTS UP TO 40 MPH, LOCALLY UP TO 50 MPH IN THE DELTA AND IN THE MOUNTAINS. THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL BRING CRITICAL FIRE WEATHER CONDITIONS FOR THE VALLEY INTO THIS EVENING. TYPICAL AFTERNOON ZEPHYR WESTERLY BREEZES RETURN OVER THE SIERRA BY WEDNESDAY. TEMPERATURES WILL THEN RISE TO WELL ABOVE NORMAL MID TO LATE THIS WEEK, ALONG WITH CONTINUED LOW HUMIDITY, WHICH COULD BRING ELEVATED FIRE WEATHER CONCERNS. $$  303 FNUS85 KREV 181004 FWLREV ECCDA Discussions National Weather Service Reno NV 304 AM PDT Mon May 18 2026 ECC012-191015- Tahoe Basin, Sierra Foothills and El Dorado NF- Discussion for Camino 304 AM PDT Mon May 18 2026 A steady warming trend will begin this week with temperatures reaching near season averages by Tuesday, then warming well above normal by mid-to-late week. Brisk northeast breezes will transition to westerly afternoon mid-week with otherwise dry conditions expected for much of the upcoming week. $$ ECC004-009-191015- Lassen NF and BLM in Modoc, Lassen, and Washoe Counties-Plumas NF- Discussion for Susanville and Quincy 304 AM PDT Mon May 18 2026 A steady warming trend will begin this week with temperatures reaching near season averages by Tuesday, then warming well above normal by mid-to-late week. Brisk northeast breezes will transition to westerly afternoon mid-week with otherwise dry conditions expected for much of the upcoming week. $$ ECC016-017-191015- Sierra Front in Alpine county- Inyo NF, Mono County and Owens Valley- Discussion for SF and Inyo 304 AM PDT Mon May 18 2026 A steady warming trend will begin this week with temperatures reaching near season averages by Tuesday, then warming well above normal by mid-to-late week. Brisk northeast breezes will transition to westerly afternoon mid-week with otherwise dry conditions expected for much of the upcoming week. $$  344 FNUS86 KMTR 181005 FWLMTR ECCDA Discussions National Weather Service SAN FRANCISCO BAY AREA 305 AM PDT Mon May 18 2026 ##################################################################### ## ## ## Discussions from the latest FWF below ## ## ## ##################################################################### ...Discussion from SFOFWFMTR... Strong north to northeast winds continue to move through the region. The strongest winds will be across the higher elevations of the Bay Area and the Santa Cruz Mountains where gusts between 50 to 60 mph are possible. More widespread gusts between 25 to 35 mph are expected across the lower elevations and interior Central Coast through the morning. Winds ease into Monday evening with a return to locally breezy conditions along the coast and across mountain gaps and passes. Wind direction fluctuates between onshore and offshore for much of the week before predominantly onshore winds return late week. Poor daytime humidity retention between 15-20% continues across the interior and higher terrain with limited overnight recoveries through mid to late week. ...Discussion from SFOFWFEKA... Winds will persist early today around the rim of the Sacramento Valley. Conditions will still be especially dry today. Winds will weaken by this afternoon and during the week, but conditions will remain very dry with temperatures gradually increasing near 90 by mid to late week. ##################################################################### ## ## ## Complete a discussion for each ECCDA segment below ## ## When done click transmit, product sent as KMTRFWLMTR ## ## ## ##################################################################### ECC010-182215- St Helena ECC Dispatch- DISCUSSION FOR Marin and Sonoma and Napa Counties 305 AM PDT Mon May 18 2026 Strong north to northeast winds continue to move through the region. The strongest winds will be across the higher elevations of the Bay Area and the Santa Cruz Mountains where gusts between 50 to 60 mph are possible. More widespread gusts between 25 to 35 mph are expected across the lower elevations and interior Central Coast through the morning. Winds ease into Monday evening with a return to locally breezy conditions along the coast and across mountain gaps and passes. Wind direction fluctuates between onshore and offshore for much of the week before predominantly onshore winds return late week. Poor daytime humidity retention between 15-20% continues across the interior and higher terrain with limited overnight recoveries through mid to late week. $$ ECC014-182215- Morgan Hill ECC Dispatch- DISCUSSION FOR Alameda and Contra Costa and Santa Clara Counties 305 AM PDT Mon May 18 2026 Strong north to northeast winds continue to move through the region. The strongest winds will be across the higher elevations of the Bay Area and the Santa Cruz Mountains where gusts between 50 to 60 mph are possible. More widespread gusts between 25 to 35 mph are expected across the lower elevations and interior Central Coast through the morning. Winds ease into Monday evening with a return to locally breezy conditions along the coast and across mountain gaps and passes. Wind direction fluctuates between onshore and offshore for much of the week before predominantly onshore winds return late week. Poor daytime humidity retention between 15-20% continues across the interior and higher terrain with limited overnight recoveries through mid to late week. $$ ECC013-182215- Felton ECC Dispatch- DISCUSSION FOR Santa Cruz and San Mateo Counties 305 AM PDT Mon May 18 2026 Strong north to northeast winds continue to move through the region. The strongest winds will be across the higher elevations of the Bay Area and the Santa Cruz Mountains where gusts between 50 to 60 mph are possible. More widespread gusts between 25 to 35 mph are expected across the lower elevations and interior Central Coast through the morning. Winds ease into Monday evening with a return to locally breezy conditions along the coast and across mountain gaps and passes. Wind direction fluctuates between onshore and offshore for much of the week before predominantly onshore winds return late week. Poor daytime humidity retention between 15-20% continues across the interior and higher terrain with limited overnight recoveries through mid to late week. $$ ECC018-182215- Monterey ECC Dispatch- DISCUSSION FOR Monterey and San Benito County 305 AM PDT Mon May 18 2026 Strong north to northeast winds continue to move through the region. The strongest winds will be across the higher elevations of the Bay Area and the Santa Cruz Mountains where gusts between 50 to 60 mph are possible. More widespread gusts between 25 to 35 mph are expected across the lower elevations and interior Central Coast through the morning. Winds ease into Monday evening with a return to locally breezy conditions along the coast and across mountain gaps and passes. Wind direction fluctuates between onshore and offshore for much of the week before predominantly onshore winds return late week. Poor daytime humidity retention between 15-20% continues across the interior and higher terrain with limited overnight recoveries through mid to late week. $$  192 FNUS85 KVEF 181046 FWLVEF ECCDA DISCUSSIONS NATIONAL WEATHER SERVICE LAS VEGAS NV 346 AM PDT MON MAY 18 2026 ##################################################################### ## ## ## DISCUSSIONS FROM THE LATEST FWF BELOW ## ## ## ##################################################################### ...DISCUSSION FROM RNOFWFVEF... WINDS WILL DECREASE AREAWIDE THIS MORNING. THE EXCEPTION IS THE COLORADO RIVER VALLEY, WHERE GUSTS BETWEEN 30 AND 40 MPH CONTINUE THROUGH MIDDAY. TEMPERATURES START OFF 10 TO 15 DEGREES BELOW NORMAL TODAY, REACHING NEAR NORMAL TEMPERATURES BY WEDNESDAY, THEN 10 TO 15 DEGREES ABOVE NORMAL BY FRIDAY. MINIMUM HUMIDITY VALUES FALL TO THE TEENS AND SINGLE DIGITS EACH AFTERNOON. ...DISCUSSION FROM LAXFWFSGX... DRIER WITH COOLING FOR THE DESERTS TODAY WITH LOWEST DAYTIME HUMIDITY AROUND 10 PERCENT AND WITH NORTH TO NORTHEAST WINDS GUSTING TO 30 TO 40 MPH FOR THIS MORNING. MEANWHILE, HIGH TEMPERATURES FOR THE COAST TO THE COASTAL SLOPES OF THE MOUNTAINS WILL WARM SEVERAL DEGREES TODAY, AS MUCH AS 10 TO 15 DEGREES FOR THE INLAND EMPIRE. WARMER FOR ALL AREAS ON TUESDAY WITH LOWEST DAYTIME HUMIDITY FOR INLAND AREAS AROUND 10 PERCENT, BUT WITH WEAKER WINDS. THE COAST AND VALLEYS WILL COOL ON WEDNESDAY WHILE THE MOUNTAINS AND DESERTS CONTINUE TO WARM. THERE WILL BE SLIGHT DAY-TO-DAY DIFFERENCES FOR THURSDAY THROUGH NEXT WEEKEND WITH HIGH TEMPERATURES A FEW TO AROUND 5 DEGREES ABOVE AVERAGE. ...DISCUSSION FROM PHXFWFPSR... ELEVATED AND MARGINALLY CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED EARLY THIS MORNING ACROSS PORTIONS OF SOUTHEAST CA AS A RESULT OF STRONG NORTHERLY WINDS AND DRY AIR FOLLOWING A FRONTAL PASSAGE. CONDITIONS WILL IMPROVE BY LATE-MORNING/EARLY-AFTERNOON AS NORTHERLY WINDS SUBSIDE. ELSEWHERE TODAY, WINDS WILL BE LIGHTER, BUT STILL WITH PEAK SOUTHWESTERLY GUSTS UP TO 15-30 MPH ACROSS SOUTH-CENTRAL AZ. MINIMUM RH VALUES TODAY WILL BE AROUND 5-10% ACROSS WESTERN DISTRICTS TO 15-25% ACROSS EASTERN DISTRICTS. TEMPERATURES WILL BE COOLEST, AND BELOW NORMAL, TODAY, WHICH WILL RESULT LOWER MAX MIXING HEIGHTS MOST OF THE DAY (UP TO 6-8K FT ABOVE GROUND LEVEL). TEMPERATURES WARM SLIGHTLY INTO TOMORROW, BUT WILL REMAIN JUST BELOW NORMAL. CONDITIONS WILL REMAIN DRY TOMORROW WITH MINIMUM RH VALUES AROUND 5-15%. OVERNIGHT RECOVERY TONIGHT WILL POOR TO FAIR AT 20-40%. WINDS TOMORROW WILL BE LIGHTER WITH TYPICAL AFTERNOON UPSLOPE BREEZES UP TO 15-25 MPH IN MOST AREAS. THE ONLY EXCEPTION WILL BE ANOTHER BRIEF ENHANCED NORTHERLY WIND DOWN THE COLORADO RIVER TOMORROW MORNING. THERE IS NO RAIN IN THE FORECAST. ##################################################################### ## ## ## AFTER REVIEWING THE FWF DISCUSSIONS (ABOVE) - COMPLETE ## ## THE DISCUSSION (BELOW) FOR THE ECCDA FORECAST ## ## WHEN DONE CLICK TRANSMIT, PRODUCT SENT AS KVEFFWLVEF ## ## ## ##################################################################### ECC027-190500- SAN BERNARDINO ECC DISPATCH- DISCUSSION FOR SAN BERNARDINO ECC DISPATCH 346 AM PDT MON MAY 18 2026 WINDS WILL DECREASE AREAWIDE THIS MORNING. THE EXCEPTION IS THE COLORADO RIVER VALLEY, WHERE GUSTS BETWEEN 30 AND 40 MPH CONTINUE THROUGH MIDDAY. TEMPERATURES START OFF 10 TO 15 DEGREES BELOW NORMAL TODAY, REACHING NEAR NORMAL TEMPERATURES BY WEDNESDAY, THEN 10 TO 15 DEGREES ABOVE NORMAL BY FRIDAY. MINIMUM HUMIDITY VALUES FALL TO THE TEENS AND SINGLE DIGITS EACH AFTERNOON. $$