Land Management Forecasts
Issued by NWS San Francisco Bay Area, CA

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476
FNUS86 KMTR 152026
FWLMTR

ECCDA Discussions
National Weather Service SAN FRANCISCO BAY AREA
126 PM PDT Sat Aug 15 2026

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##            Discussions from the latest FWF below                ##
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...Discussion from SFOFWFMTR...

The marine layer is forecast to gradually compress to around
1500-1800 feet by Sunday morning. Thus, overnight humidity
recoveries will be excellent within the marine layer, yet stay
poor to fair above its influences. Further compression of the
marine layer is expected midweek with poor overnight humidity
recoveries across the highest peaks of the Central Coast (20-35%).
A gradual warming trend is forecast by midweek resulting in
worsening daytime humidity retention away from the marine
influences, generally in the teens to low 20s. Diurnally breezy
onshore winds continue with gusts greater than 25 mph across
favored mountain gaps/passes, the coast, and highest ridgelines
this week.


...Discussion from SFOFWFEKA...

A troughing pattern has brought a deep marine layer with marine
stratus reaching farther inland. Below normal interior
temperatures of 80s to low 90s are forecast for the next week as
the troughing pattern continues. Afternoon RHs are forecast to
drop into the 20s and 30s. Overnight recoveries are forecast to be
good to excellent in the lower elevations and good to moderate in
the higher elevations.


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##       Complete a discussion for each ECCDA segment below        ##
##      When done click transmit, product sent as KMTRFWLMTR       ##
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ECC010-160830-
St Helena ECC Dispatch-
DISCUSSION FOR Marin and Sonoma and Napa Counties
126 PM PDT Sat Aug 15 2026

The marine layer is forecast to gradually compress to around
1500-1800 feet by Sunday morning. Thus, overnight humidity
recoveries will be excellent within the marine layer, yet stay
poor to fair above its influences. Further compression of the
marine layer is expected midweek with poor overnight humidity
recoveries across the highest peaks of the Central Coast (20-35%).
A gradual warming trend is forecast by midweek resulting in
worsening daytime humidity retention away from the marine
influences, generally in the teens to low 20s. Diurnally breezy
onshore winds continue with gusts greater than 25 mph across
favored mountain gaps/passes, the coast, and highest ridgelines
this week.

$$

ECC014-160830-
Morgan Hill ECC Dispatch-
DISCUSSION FOR Alameda and Contra Costa and Santa Clara Counties
126 PM PDT Sat Aug 15 2026

The marine layer is forecast to gradually compress to around
1500-1800 feet by Sunday morning. Thus, overnight humidity
recoveries will be excellent within the marine layer, yet stay
poor to fair above its influences. Further compression of the
marine layer is expected midweek with poor overnight humidity
recoveries across the highest peaks of the Central Coast (20-35%).
A gradual warming trend is forecast by midweek resulting in
worsening daytime humidity retention away from the marine
influences, generally in the teens to low 20s. Diurnally breezy
onshore winds continue with gusts greater than 25 mph across
favored mountain gaps/passes, the coast, and highest ridgelines
this week.

$$

ECC013-160830-
Felton ECC Dispatch-
DISCUSSION FOR Santa Cruz and San Mateo Counties
126 PM PDT Sat Aug 15 2026

The marine layer is forecast to gradually compress to around
1500-1800 feet by Sunday morning. Thus, overnight humidity
recoveries will be excellent within the marine layer, yet stay
poor to fair above its influences. Further compression of the
marine layer is expected midweek with poor overnight humidity
recoveries across the highest peaks of the Central Coast (20-35%).
A gradual warming trend is forecast by midweek resulting in
worsening daytime humidity retention away from the marine
influences, generally in the teens to low 20s. Diurnally breezy
onshore winds continue with gusts greater than 25 mph across
favored mountain gaps/passes, the coast, and highest ridgelines
this week.

$$

ECC018-160830-
Monterey ECC Dispatch-
DISCUSSION FOR Monterey and San Benito County
126 PM PDT Sat Aug 15 2026

The marine layer is forecast to gradually compress to around
1500-1800 feet by Sunday morning. Thus, overnight humidity
recoveries will be excellent within the marine layer, yet stay
poor to fair above its influences. Further compression of the
marine layer is expected midweek with poor overnight humidity
recoveries across the highest peaks of the Central Coast (20-35%).
A gradual warming trend is forecast by midweek resulting in
worsening daytime humidity retention away from the marine
influences, generally in the teens to low 20s. Diurnally breezy
onshore winds continue with gusts greater than 25 mph across
favored mountain gaps/passes, the coast, and highest ridgelines
this week.

$$