Land Management Forecasts
Issued by NWS San Francisco Bay Area, CA
Issued by NWS San Francisco Bay Area, CA
857 FNUS86 KMTR 152132 FWLMTR ECCDA Discussions National Weather Service SAN FRANCISCO BAY AREA 232 PM PDT Tue Sep 15 2026 ##################################################################### ## ## ## Discussions from the latest FWF below ## ## ## ##################################################################### ...Discussion from SFOFWFMTR... A 1500 ft marine layer has returned along with cooler and more humid conditions. The current RH is anywhere from 5 to 50% higher than 24 hours ago. The marine layer will gradually deepen over the next day or two, and there is a slight chance for coastal drizzle Thursday morning. Winds will remain onshore with diurnally driven gusts. Wind speeds will peak Wednesday afternoon with gust of 20 to 30 mph expected across the East Bay Hills, Salinas Valley, and both the San Francisco and Monterey Bays. A slight warming trend will bring temperatures back to normal this weekend. ...Discussion from SFOFWFEKA... Wednesday afternoon or overnight an upper low has the potential to bring a few thunderstorms to Trinity county and northeastern Mendocino county. These may also spread into northern Humboldt and Del Norte counties. This will also bring slightly cooler temperatures and higher RH. A few showers or thunderstorms are possible again on Thursday in Trinity county as well. Warm and dry weather is expected to return Friday and Saturday. ##################################################################### ## ## ## Complete a discussion for each ECCDA segment below ## ## When done click transmit, product sent as KMTRFWLMTR ## ## ## ##################################################################### ECC010-160945- St Helena ECC Dispatch- DISCUSSION FOR Marin and Sonoma and Napa Counties 232 PM PDT Tue Sep 15 2026 A 1500 ft marine layer has returned along with cooler and more humid conditions. The current RH is anywhere from 5 to 50% higher than 24 hours ago. The marine layer will gradually deepen over the next day or two, and there is a slight chance for coastal drizzle Thursday morning. Winds will remain onshore with diurnally driven gusts. Wind speeds will peak Wednesday afternoon with gust of 20 to 30 mph expected across the East Bay Hills, Salinas Valley, and both the San Francisco and Monterey Bays. A slight warming trend will bring temperatures back to normal this weekend. $$ ECC014-160945- Morgan Hill ECC Dispatch- DISCUSSION FOR Alameda and Contra Costa and Santa Clara Counties 232 PM PDT Tue Sep 15 2026 A 1500 ft marine layer has returned along with cooler and more humid conditions. The current RH is anywhere from 5 to 50% higher than 24 hours ago. The marine layer will gradually deepen over the next day or two, and there is a slight chance for coastal drizzle Thursday morning. Winds will remain onshore with diurnally driven gusts. Wind speeds will peak Wednesday afternoon with gust of 20 to 30 mph expected across the East Bay Hills, Salinas Valley, and both the San Francisco and Monterey Bays. A slight warming trend will bring temperatures back to normal this weekend. $$ ECC013-160945- Felton ECC Dispatch- DISCUSSION FOR Santa Cruz and San Mateo Counties 232 PM PDT Tue Sep 15 2026 A 1500 ft marine layer has returned along with cooler and more humid conditions. The current RH is anywhere from 5 to 50% higher than 24 hours ago. The marine layer will gradually deepen over the next day or two, and there is a slight chance for coastal drizzle Thursday morning. Winds will remain onshore with diurnally driven gusts. Wind speeds will peak Wednesday afternoon with gust of 20 to 30 mph expected across the East Bay Hills, Salinas Valley, and both the San Francisco and Monterey Bays. A slight warming trend will bring temperatures back to normal this weekend. $$ ECC018-160945- Monterey ECC Dispatch- DISCUSSION FOR Monterey and San Benito County 232 PM PDT Tue Sep 15 2026 A 1500 ft marine layer has returned along with cooler and more humid conditions. The current RH is anywhere from 5 to 50% higher than 24 hours ago. The marine layer will gradually deepen over the next day or two, and there is a slight chance for coastal drizzle Thursday morning. Winds will remain onshore with diurnally driven gusts. Wind speeds will peak Wednesday afternoon with gust of 20 to 30 mph expected across the East Bay Hills, Salinas Valley, and both the San Francisco and Monterey Bays. A slight warming trend will bring temperatures back to normal this weekend. $$