Area Forecast Discussion
Issued by NWS San Francisco Bay Area, CA

Current Version |  Previous Version |  Graphics & Text |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
671
FXUS66 KMTR 070901
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
201 AM PDT Tue May 7 2024

...New SYNOPSIS, SHORT TERM, LONG TERM...

.SYNOPSIS...
Issued at 200 AM PDT Tue May 7 2024

Seasonal temperatures persist today with a warming trend to kick off
Wednesday along with offshore winds in highest peaks of the North
Bay and East Bay. Temperatures will peak Thursday and Friday with
minor Heat Risk potentially continuing into Saturday across the
interior. A gradual cooling trend will then follow by the end of the
upcoming weekend.

&&

.SHORT TERM...
(Today and tonight)
Issued at 200 AM PDT Tue May 7 2024

Very few low clouds this morning, mainly favoring the Monterey Bay
region. Low clouds are likely to dissipate by early morning however.
Afternoon temperatures will be closer to normal (within 1-5 degrees)
yet still will be on the cooler side. Overall, expecting a mostly
sunny day with the possibility of a few passing high clouds.
Overnight conditions will cool into the mid-to-upper 40`s and lower
50`s near the San Francisco Bay. Do expect less in the way of cloud
cover tonight as the airmass aloft continues to dry.

&&

.LONG TERM...
(Wednesday through Monday)
Issued at 200 AM PDT Tue May 7 2024

Warming trend kicks off on Wednesday with temperatures warming into
the lower 80`s in the warmest interior spots. Meanwhile, mid 60`s to
mid-to-upper 70`s are expected elsewhere across the region. Off
shore winds also return to the region Wednesday morning and will
continue through Thursday morning in the region`s peaks of the North
Bay and East Bay. Gusts could reach or exceed 50 mph in the highest
peaks.

By Thursday and more so Friday, temperatures are expected to
approach 90 degrees in the farthest inland spots. Slight cooling is
expected near the coast on Saturday, yet the interior will remain
similarly warm. Onshore flow returns to the region by late in the
weekend with a general cooling trend. However, temperatures will
still remain in the low-to-mid 80`s across the interior to upper
50`s to 60`s near the coast.

From previous forecaster: "All in all should be a very nice second
half of the week for everyone. That being said, folks should still
exercise caution when enjoying time outdoors as this swing from
below normal to above normal temperatures can catch people off
guard. Plan to pack some extra water and sun protection if you`re
planning to spend time outdoors. And the most important preparation
if you`re going to the coast or relaxing poolside...SUNSCREEN!!!"

&&

.AVIATION...
(06Z TAFS)
Issued at 1059 PM PDT Mon May 6 2024

In the overnight hours tonight and into Tuesday morning, low clouds
will bring MVFR/IFR conditions to a select few terminals, but
otherwise widespread VFR is expected. Onshore winds continue to ease
at this hour and will do so throughout the night. Terminals around
the greater SF Bay will see low clouds intermittently bringing MVFR
conditions, however, this is expected to cease towards sunrise, with
VFR conditions returning as clouds mix out. Further south towards
Monterey Bay, IFR CIGs are expected to develop and last through
sunrise. Northwest winds increase in the afternoon Tuesday to become
moderate once more, gusting to around 20-25 knots for terminals near
coastal gaps.

Vicinity of SFO...Intermittent MVFR conditions are expected as low
clouds persist around the terminal. Have included a TEMPO in the
TAF to reflect the intermittent nature of MVFR CIGs tonight.
Otherwise, VFR is expected to return Tuesday morning right around
sunrise, to perhaps just beyond. VFR then lasts through the
remainder of the TAF period with gusty NW winds building in the
afternoon and lasting through the early evening of Tuesday.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...MVFR/IFR conditions last through sunrise as
low clouds build around the terminal, but clear to become VFR
shortly after. VFR lasts through the remainder of the TAF period.
Breezy northwest winds expected in the afternoon of Tuesday once
more, then easing into the evening to become light.

&&

.MARINE...
(Tonight through next Sunday)
Issued at 909 PM PDT Mon May 6 2024

Dry weather to continue through next weekend. West to
northwesterly  winds will gradually transition northerly overnight
tonight into  Tuesday. As the high pressure system continues to
build and move  eastward, winds will strengthen starting Tuesday
with gale force  gusts Tuesday night through Wednesday night with
the strongest gusts  located along the Big Sur Coast and northern
outer coastal waters. Significant wave heights will build to
heights to 15 to 16 feet by  mid-week. Conditions will be
extremely hazardous for all but the  largest vessels Tuesday and
Wednesday and extreme caution should be  exercised during this
time.

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
CA...None.
PZ...Small Craft Advisory from 9 AM this morning to 9 PM PDT this
     evening for Mry Bay.

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

     Small Craft Advisory from 9 AM this morning to 3 AM PDT
     Wednesday for Pigeon Pt to Pt Pinos 0-10 nm-Pt Reyes to
     Pigeon Pt 0-10 nm.

     Small Craft Advisory until 3 AM PDT early this morning for Pt
     Pinos to Pt Piedras Blancas 0-10 nm.

     Gale Warning until 3 AM PDT Wednesday for Pt Pinos to Pt Piedras
     Blancas 0-10 nm.

     Small Craft Advisory until 3 PM PDT this afternoon for Pigeon Pt
     to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 10-60 NM.

     Gale Warning from 3 PM this afternoon to 9 AM PDT Wednesday for
     Pt Arena to Pt Reyes 10-60 NM.

     Gale Warning from 3 PM this afternoon to 3 AM PDT Wednesday for
     Pigeon Pt to Pt Pinos 10-60 NM.

&&

$$

SHORT TERM...RGass
LONG TERM....RGass/Behringer
AVIATION...AC
MARINE...SO

Visit us at www.weather.gov/sanfrancisco

Follow us on Facebook, Twitter, and YouTube at:
www.facebook.com/nwsbayarea
www.twitter.com/nwsbayarea
www.youtube.com/nwsbayarea