593 FNUS85 KREV 201222 FWLREV ECCDA Discussions National Weather Service Reno NV 522 AM PDT Wed May 20 2026 ECC004-009-012-016-211230- Lassen NF and BLM in Modoc, Lassen, and Washoe Counties-Plumas NF- Tahoe Basin, Sierra Foothills and El Dorado NF- Sierra Front in Alpine county- Discussion for Susanville, Quincy, Camino, and SF 522 AM PDT Wed May 20 2026 A warming and drying trend continues this week with highs rising above average through the remainder of the week. Expect light west to northwest breezes each afternoon with breezier conditions by Saturday afternoon. Afternoon cumulus build-ups will prevail this afternoon with a 5-15% chance of isolated showers through the weekend into early next week. $$ ECC017-211230- Inyo NF, Mono County and Owens Valley- Discussion for Inyo 522 AM PDT Wed May 20 2026 A warming and drying trend continues this week with highs rising above average through the remainder of the week. Expect light west to northwest breezes each afternoon with breezier conditions by Saturday afternoon. Afternoon cumulus build-ups will prevail this afternoon with scattered showers and isolated thunderstorm chances increasing across the eastern Sierra over the weekend into early next week. $$  727 FNUS86 KMTR 201228 FWLMTR ECCDA Discussions National Weather Service SAN FRANCISCO BAY AREA 528 AM PDT Wed May 20 2026 ##################################################################### ## ## ## Discussions from the latest FWF below ## ## ## ##################################################################### ...Discussion from SFOFWFMTR... A return of onshore flow will bring cooler temperatures and higher humidities today. However, interior locations across the district will remain critically dry. A sea breeze push will bring breezy to gusty afternoon winds for inland valleys and passes. A shallow marine layer will redevelop Wednesday into Thursday bringing higher humidity to lower elevations, but higher elevations will remain dry. ...Discussion from SFOFWFEKA... No significant changes to the previous forecast. A gradual warming trend is expected through Thursday when interior highs will cap out in the low 90s. Conditions will remain very dry with RH between 20 and 30 percent. Aside from some moderate north breezes along shore, winds will be gentle and terrain driven with few gusts even reaching 10 mph. Conditions will ease this weekend with more marine influence pushing inland. ##################################################################### ## ## ## Complete a discussion for each ECCDA segment below ## ## When done click transmit, product sent as KMTRFWLMTR ## ## ## ##################################################################### ECC010-210030- St Helena ECC Dispatch- DISCUSSION FOR Marin and Sonoma and Napa Counties 528 AM PDT Wed May 20 2026 A return of onshore flow will bring cooler temperatures and higher humidities today. However, interior locations across the district will remain critically dry. A sea breeze push will bring breezy to gusty afternoon winds for inland valleys and passes. A shallow marine layer will redevelop Wednesday into Thursday bringing higher humidity to lower elevations, but higher elevations will remain dry. $$ ECC014-210030- Morgan Hill ECC Dispatch- DISCUSSION FOR Alameda and Contra Costa and Santa Clara Counties 528 AM PDT Wed May 20 2026 A return of onshore flow will bring cooler temperatures and higher humidities today. However, interior locations across the district will remain critically dry. A sea breeze push will bring breezy to gusty afternoon winds for inland valleys and passes. A shallow marine layer will redevelop Wednesday into Thursday bringing higher humidity to lower elevations, but higher elevations will remain dry. $$ ECC013-210030- Felton ECC Dispatch- DISCUSSION FOR Santa Cruz and San Mateo Counties 528 AM PDT Wed May 20 2026 A return of onshore flow will bring cooler temperatures and higher humidities today. However, interior locations across the district will remain critically dry. A sea breeze push will bring breezy to gusty afternoon winds for inland valleys and passes. A shallow marine layer will redevelop Wednesday into Thursday bringing higher humidity to lower elevations, but higher elevations will remain dry. $$ ECC018-210030- Monterey ECC Dispatch- DISCUSSION FOR Monterey and San Benito County 528 AM PDT Wed May 20 2026 A return of onshore flow will bring cooler temperatures and higher humidities today. However, interior locations across the district will remain critically dry. A sea breeze push will bring breezy to gusty afternoon winds for inland valleys and passes. A shallow marine layer will redevelop Wednesday into Thursday bringing higher humidity to lower elevations, but higher elevations will remain dry. $$