FXUS66 KMTR 141147
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
447 AM PDT Tue Apr 14 2026

...New AVIATION, MARINE...

.KEY MESSAGES...
Updated at 1216 AM PDT Tue Apr 14 2026

 - Slightly cooler to near normal temperatures continue through 
   Thursday

 - Periods of gusty winds, especially at higher elevations 
   Wednesday afternoon through Friday morning

 - Warmer temperatures return Friday and Saturday

 - Confidence is increasing for widespread beneficial rain
   beginning Sunday into the beginning of next week

&&

.SHORT TERM...
Issued at 1216 AM PDT Tue Apr 14 2026
(Today and tonight)

The upper level low that brought beneficial rainfall the past few 
days has exited east with lingering low clouds overnight from the SF 
Peninsula south into Monterey and the Salinas Valley, and farther 
inland over the interior mountains of San Benito County. Low clouds 
will linger across the Bay Area and Central Coast through mid-
morning today as a drier mid-level airmass filters in across our 
area under shortwave ridging aloft, with mostly sunny skies in the 
afternoon into the evening hours. High temperatures will begin their 
gradual increase through midweek today, with only slight increases 
from Mondays highs. Tonight into Wednesday morning will still be 
on the chilly side of normal with mostly clear skies, relatively 
light winds, and more efficient radiational cooling.

&&

.LONG TERM...
Issued at 1216 AM PDT Tue Apr 14 2026
(Wednesday through Monday)

Temperatures on Wednesday will be similar or slightly higher on the 
backside of the progressive shortwave ridging. By Wednesday 
afternoon, onshore flow will increase out ahead of a sharpening 
trough that will bring gusty winds and a slight chance of rain 
across northern portions of the North Bay. The better fetch of 
onshore flow out ahead of the upper trough and associated surface 
boundary will be short lived but will produce more widespread cloud 
cover during the day and evening hours. Onshore flow will quickly 
transition to north/northeast offshore flow overnight into Thursday 
in the wake of the progressive upper trough. The gusty winds during 
the day Thursday, especially above 1000ft are not expected to exceed 
40 MPH with little impacts. Winds ease Friday, while a still 
progressive but high amplitude ridge moves onshore producing a more 
notable jump in temperatures Friday and Saturday to slightly above 
normal for most locations. The active, progressive longwave pattern 
continues by the end of the weekend into the beginning of next week 
with an increasing signal for another round of widespread
beneficial rainfall.

&&

.AVIATION...
(12Z TAFS)
Issued at 447 AM PDT Tue Apr 14 2026

Pockets of fog are affecting the North Bay terminals while MVFR CIGs 
are building for the rest of the TAF sites. CIGs and fog will erode 
into the mid to late morning leading to widespread VFR for the 
afternoon. Expect building winds into the afternoon, becoming 
moderate to breezy. These winds reduce into the evening and early 
night. MVFR-level CIGs return to the coast and HAF into the night. 
These CIGs will be slower to build inland, but CIGs will be expected 
at LVK, MRY, and SJC into the late night and early Wednesday.

Vicinity of SFO...Spotty MVFR CIGs linger into the mid morning 
before eroding. Expect mostly moderate winds through the morning and 
into the afternoon before breezy west winds build in the mid 
afternoon. Winds reduce into the night, but remain moderate through 
the end of the TAF period.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...MVFR CIGs last into the late morning with 
mostly light winds. Expect CIGs to erode as winds build in the late 
morning and early afternoon. Moderate west winds look to last into 
the evening before reducing as scattered low clouds build into the 
area. MVFR CIGs look to fill over MRY into the late night.

&&

.MARINE...
(Today through Sunday)
Issued at 447 AM PDT Tue Apr 14 2026

Moderate to fresh NW breezes and moderate build seas across the
exposed coastal waters into the mid week. A cold front will
increase winds to near gale force late Wednesday or early
Thursday, building rough seas. Winds and seas ease into the
weekend, but build again into the next work week with some chances
for rain.

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
CA...None.
PZ...Small Craft Advisory from 3 PM this afternoon to 9 PM PDT this 
     evening for Mry Bay-Pigeon Pt to Pt Pinos 0-10 nm.

     Small Craft Advisory from 9 PM Wednesday to 3 AM PDT Thursday 
     for Mry Bay-Pigeon Pt to Pt Pinos 0-10 nm-Pt Arena to Pt 
     Reyes 0-10 nm-Pt Arena to Pt Reyes 10-60 NM.

     Small Craft Advisory until 3 AM PDT Wednesday for Pt Arena to Pt 
     Reyes 0-10 nm-Pt Arena to Pt Reyes 10-60 NM.

     Small Craft Advisory from 3 PM this afternoon to 3 AM PDT 
     Wednesday for Pt Reyes to Pigeon Pt 0-10 nm.

     Small Craft Advisory from 3 PM Wednesday to 3 AM PDT Thursday 
     for Pt Reyes to Pigeon Pt 0-10 nm.

     Small Craft Advisory from 3 PM this afternoon to 3 AM PDT 
     Thursday for Pt Pinos to Pt Piedras Blancas 0-10 nm.

&&

$$

SHORT TERM...JM
LONG TERM....JM
AVIATION...Murdock
MARINE...Murdock

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Prepared by Boulder-Creek.com Weather at: Tue Apr 14 08:30:02 PDT 2026