FNUS86 KMTR 222142 FWLMTR ECCDA Discussions National Weather Service SAN FRANCISCO BAY AREA 242 PM PDT Sat Aug 22 2026 ##################################################################### ## ## ## Discussions from the latest FWF below ## ## ## ##################################################################### ...Discussion from SFOFWFMTR... Slightly above normal temperatures and dry conditions continue above the marine layer while near to slightly below normal temperatures continue within the marine layer. The marine layer will remain between 1000 to 1500 feet for much of the upcoming week. Morning stratus coverage will become more variable this week due to fluctuations in the depth of the marine layer. Daytime RH retention will be poor (10-25%) across the higher elevations with poor overnight RH recoveries (20-30%) continuing. Within the marine layer, excellent overnight humidity recoveries, fair daytime humidity retention and coastal drizzle are continue this week. Diurnally breezy conditions continue directly along the coastline, higher elevations, and across mountain gaps/passes. ...Discussion from SFOFWFEKA... A deep marine layer will continue to bring marine influence into the interior through the weekend. Interior high temperatures are forecast to be in the 80s to low 90s. Afternoon RH is forecast to be in the high teens to low 30s, with good overnight recoveries. Sunday into early next week, temperatures rise somewhat to near normal. Offshore flow overnight will bring poor overnight recoveries for higher elevations and lower afternoon RH across the area. A deeper marine layer returns mid next week. ##################################################################### ## ## ## Complete a discussion for each ECCDA segment below ## ## When done click transmit, product sent as KMTRFWLMTR ## ## ## ##################################################################### ECC010-230945- St Helena ECC Dispatch- DISCUSSION FOR Marin and Sonoma and Napa Counties 242 PM PDT Sat Aug 22 2026 Slightly above normal temperatures and dry conditions continue above the marine layer while near to slightly below normal temperatures continue within the marine layer. The marine layer will remain between 1000 to 1500 feet for much of the upcoming week. Morning stratus coverage will become more variable this week due to fluctuations in the depth of the marine layer. Daytime RH retention will be poor (10-25%) across the higher elevations with poor overnight RH recoveries (20-30%) continuing. Within the marine layer, excellent overnight humidity recoveries, fair daytime humidity retention and coastal drizzle are continue this week. Diurnally breezy conditions continue directly along the coastline, higher elevations, and across mountain gaps/passes. $$ ECC014-230945- Morgan Hill ECC Dispatch- DISCUSSION FOR Alameda and Contra Costa and Santa Clara Counties 242 PM PDT Sat Aug 22 2026 Slightly above normal temperatures and dry conditions continue above the marine layer while near to slightly below normal temperatures continue within the marine layer. The marine layer will remain between 1000 to 1500 feet for much of the upcoming week. Morning stratus coverage will become more variable this week due to fluctuations in the depth of the marine layer. Daytime RH retention will be poor (10-25%) across the higher elevations with poor overnight RH recoveries (20-30%) continuing. Within the marine layer, excellent overnight humidity recoveries, fair daytime humidity retention and coastal drizzle are continue this week. Diurnally breezy conditions continue directly along the coastline, higher elevations, and across mountain gaps/passes. $$ ECC013-230945- Felton ECC Dispatch- DISCUSSION FOR Santa Cruz and San Mateo Counties 242 PM PDT Sat Aug 22 2026 Slightly above normal temperatures and dry conditions continue above the marine layer while near to slightly below normal temperatures continue within the marine layer. The marine layer will remain between 1000 to 1500 feet for much of the upcoming week. Morning stratus coverage will become more variable this week due to fluctuations in the depth of the marine layer. Daytime RH retention will be poor (10-25%) across the higher elevations with poor overnight RH recoveries (20-30%) continuing. Within the marine layer, excellent overnight humidity recoveries, fair daytime humidity retention and coastal drizzle are continue this week. Diurnally breezy conditions continue directly along the coastline, higher elevations, and across mountain gaps/passes. $$ ECC018-230945- Monterey ECC Dispatch- DISCUSSION FOR Monterey and San Benito County 242 PM PDT Sat Aug 22 2026 Slightly above normal temperatures and dry conditions continue above the marine layer while near to slightly below normal temperatures continue within the marine layer. The marine layer will remain between 1000 to 1500 feet for much of the upcoming week. Morning stratus coverage will become more variable this week due to fluctuations in the depth of the marine layer. Daytime RH retention will be poor (10-25%) across the higher elevations with poor overnight RH recoveries (20-30%) continuing. Within the marine layer, excellent overnight humidity recoveries, fair daytime humidity retention and coastal drizzle are continue this week. Diurnally breezy conditions continue directly along the coastline, higher elevations, and across mountain gaps/passes. $$