Land Management Forecasts
Issued by NWS San Francisco Bay Area, CA
Issued by NWS San Francisco Bay Area, CA
729 FNUS86 KMTR 172154 FWLMTR ECCDA Discussions National Weather Service SAN FRANCISCO BAY AREA 254 PM PDT Fri Oct 17 2025 ##################################################################### ## ## ## Discussions from the latest FWF below ## ## ## ##################################################################### ...Discussion from SFOFWFMTR... Surface high pressure will build across the Great Basin tonight and Saturday morning, the high will weaken later in the weekend then strengthen again late Sunday night and Monday. Meanwhile our district will be under a nearly stationary upper level ridge of high pressure which in combination with occasionally mainly weak offshore winds, compressional warming aloft, a shallow marine layer depth and a mid October sun angle will result in warm and dry conditions through early next week. Humidity recoveries in the higher elevations will remain moderate to more locally poor over the Santa Lucia Mountains/Los Padres National Forest. Beginning by late Monday night and early Tuesday an upper level low 500 miles west-southwest of San Diego will move east-northeast across southern California Wednesday. This will help open the door to a wet Pacific weather pattern reaching northern California, including in our district, beginning late next week. ...Discussion from SFOFWFEKA... Conditions will very slowly warm and dry through the end of the week with daytime RH near 30 percent and highs in the high 70s to low 80s degrees for interior valleys through Saturday. Breezy offshore winds are possible in the higher terrain tonight but otherwise daytime winds will be very light. A weak front will bring a slight chance for a wetting rainfall Sunday for coastal Del Norte County. ##################################################################### ## ## ## Complete a discussion for each ECCDA segment below ## ## When done click transmit, product sent as KMTRFWLMTR ## ## ## ##################################################################### ECC010-181000- St Helena ECC Dispatch- DISCUSSION FOR Marin and Sonoma and Napa Counties 254 PM PDT Fri Oct 17 2025 Surface high pressure will build across the Great Basin tonight and Saturday morning, the high will weaken later in the weekend then strengthen again late Sunday night and Monday. Meanwhile our district will be under a nearly stationary upper level ridge of high pressure which in combination with occasionally mainly weak offshore winds, compressional warming aloft, a shallow marine layer depth and a mid October sun angle will result in warm and dry conditions through early next week. Humidity recoveries in the higher elevations will remain moderate to more locally poor over the Santa Lucia Mountains/Los Padres National Forest. Beginning by late Monday night and early Tuesday an upper level low 500 miles west-southwest of San Diego will move east-northeast across southern California Wednesday. This will help open the door to a wet Pacific weather pattern reaching northern California, including in our district, beginning late next week. $$ ECC014-181000- Morgan Hill ECC Dispatch- DISCUSSION FOR Alameda and Contra Costa and Santa Clara Counties 254 PM PDT Fri Oct 17 2025 Surface high pressure will build across the Great Basin tonight and Saturday morning, the high will weaken later in the weekend then strengthen again late Sunday night and Monday. Meanwhile our district will be under a nearly stationary upper level ridge of high pressure which in combination with occasionally mainly weak offshore winds, compressional warming aloft, a shallow marine layer depth and a mid October sun angle will result in warm and dry conditions through early next week. Humidity recoveries in the higher elevations will remain moderate to more locally poor over the Santa Lucia Mountains/Los Padres National Forest. Beginning by late Monday night and early Tuesday an upper level low 500 miles west-southwest of San Diego will move east-northeast across southern California Wednesday. This will help open the door to a wet Pacific weather pattern reaching northern California, including in our district, beginning late next week. $$ ECC013-181000- Felton ECC Dispatch- DISCUSSION FOR Santa Cruz and San Mateo Counties 254 PM PDT Fri Oct 17 2025 Surface high pressure will build across the Great Basin tonight and Saturday morning, the high will weaken later in the weekend then strengthen again late Sunday night and Monday. Meanwhile our district will be under a nearly stationary upper level ridge of high pressure which in combination with occasionally mainly weak offshore winds, compressional warming aloft, a shallow marine layer depth and a mid October sun angle will result in warm and dry conditions through early next week. Humidity recoveries in the higher elevations will remain moderate to more locally poor over the Santa Lucia Mountains/Los Padres National Forest. Beginning by late Monday night and early Tuesday an upper level low 500 miles west-southwest of San Diego will move east-northeast across southern California Wednesday. This will help open the door to a wet Pacific weather pattern reaching northern California, including in our district, beginning late next week. $$ ECC018-181000- Monterey ECC Dispatch- DISCUSSION FOR Monterey and San Benito County 254 PM PDT Fri Oct 17 2025 Surface high pressure will build across the Great Basin tonight and Saturday morning, the high will weaken later in the weekend then strengthen again late Sunday night and Monday. Meanwhile our district will be under a nearly stationary upper level ridge of high pressure which in combination with occasionally mainly weak offshore winds, compressional warming aloft, a shallow marine layer depth and a mid October sun angle will result in warm and dry conditions through early next week. Humidity recoveries in the higher elevations will remain moderate to more locally poor over the Santa Lucia Mountains/Los Padres National Forest. Beginning by late Monday night and early Tuesday an upper level low 500 miles west-southwest of San Diego will move east-northeast across southern California Wednesday. This will help open the door to a wet Pacific weather pattern reaching northern California, including in our district, beginning late next week. $$