San Francisco, CA

16:46 PST le 20 février 2017 (GMT -0800)
Excelsior | | Change Station
Avis météorologiques actifs: Areal Flood Watch, High Wind Warning, Gale Warning Préavis actif: Areal Flood Watch

Alt. 0 ft 37.72 °N, 122.44 °W | Updated 3 minutes ago

Pluie
Pluie
54.1 ° F
Paraît 54.1 ° F
N
3.1
Vent Variable Vent de Ouest
Gusts 6.2 mph

Aujourd'hui
Haut(e) -- | Bas -- ° F
--% Risque de précip.
Hier
Haut(e) -- | Bas -- ° F
Precip. -- pouce
Pression 29.90 pouce
Visibilité 1.5 Miles terrestres
Nuages Nuages épars 800 ft
Nuageux 1400 ft
Couvert 2900 ft
Point de rosée 54 ° F
Humidité 100%
Précipitations 1.28 pouce
Profondeur de la couche neigeuse Non disponible.
6:52 AM 5:54 PM
Lune descendante, 30% visible
SPECI KSFO 210036Z 10007KT 1 1/2SM R28R/4500V6000FT +RA BR SCT008 BKN014 OVC029 13/12 A2990 RMK AO2 P0022 T01280117 $
Pression 29.90 pouce
Visibilité 1.5 Miles terrestres
Nuages Nuages épars 800 ft
Nuageux 1400 ft
Couvert 2900 ft
Point de rosée 54 ° F
Humidité 100%
Précipitations 1.28 pouce
Profondeur de la couche neigeuse Non disponible.
6:52 AM 5:54 PM
Lune descendante, 30% visible
SPECI KSFO 210036Z 10007KT 1 1/2SM R28R/4500V6000FT +RA BR SCT008 BKN014 OVC029 13/12 A2990 RMK AO2 P0022 T01280117 $

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What may become known as the President’s Day Storm of 2017 barreled into the San Francisco Bay area on Monday morning. Heavy rains and localized flooding may develop across the region. High winds later Monday could bring down trees and cause widespread, prolonged power outages from the Bay Area toward Sacramento.

10-Day Weather Forecast

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Feb. 20, 2017 Lever Coucher
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Crépuscule nautique
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Ville Distance Mag. Time & Date
Minimum magnitude displayed is 2.5.

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Emplacement de la station Température Refroidissement éolien Point de rosée Humidité Vent Precip. Alt. Mise à jour Type
                   

Watches & Warnings

Areal Flood Watch
Issued: 05:12 PST Feb. 20, 2017 – National Weather Service

... Flood Watch remains in effect through late tonight...

The Flood Watch continues for

* a portion of western California... including the following
areas... coastal North Bay including Point Reyes National
Seashore... East Bay hills and the Diablo Range... East Bay
interior valleys... mountains of San Benito County and interior
Monterey County including Pinnacles National Park... North Bay
interior valleys... North Bay mountains... northern Monterey
Bay... northern Salinas valley/Hollister Valley and Carmel
Valley... San Francisco... San Francisco Bay shoreline... San
Francisco peninsula coast... Santa Clara Valley including San
Jose... Santa Cruz Mountains... Santa Lucia mountains and Los
Padres National Forest... southern Monterey Bay and Big Sur
coast and southern Salinas valley/Arroyo Seco and Lake San
Antonio.

* Through late tonight

* a prolonged period of moderate to heavy rainfall is anticipated
to fall on already saturated soils through Monday evening. This
will result in sharp rises on area creeks, streams and rivers and
will likely result in flooding.

* Impacts include enhanced runoff and associated flooding in low
lying areas and waterways, rising water levels and flooding on
area streams, creeks and rivers. Other impacts include increased
risk of rock/mud slides in steep terrain, downed trees and power
lines, and damaged to or washed out roadways.

Precautionary/preparedness actions...

A Flood Watch means there is a potential for flooding based on
current forecasts.

You should monitor later forecasts and be alert for possible
flood warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.





High Wind Warning
Issued: 05:23 PST Feb. 20, 2017 – National Weather Service

... Wind Advisory remains in effect until 1 PM PST this
afternoon...
... High Wind Warning remains in effect from 1 PM this afternoon
to 3 am PST Tuesday...

* timing... southeast winds increase through this morning and then
further intensify this afternoon. Strongest southerly winds
expected this afternoon and evening. Winds diminish late
tonight.

* Winds... sustained southerly winds 15 to 25 mph with gusts to 45
mph. Winds increasing to 25 to 40 mph this afternoon and evening
with gusts to 60 mph.

* Impacts... winds may be strong enough to cause property damage.
Strong and gusty winds will make driving difficult, especially
for drivers of high profile vehicles. Saturated soils will also
contribute to an increased risk of downed trees and powerlines.

Precautionary/preparedness actions...

A Wind Advisory means that wind gusts of at least 45 mph are
expected. Winds this strong can make driving difficult...
especially for high profile vehicles. Use extra caution. Winds
this strong combined with saturated soils can result in downed
trees and power outages.

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.






Gale Warning
Issued: 14:24 PST Feb. 20, 2017 – National Weather Service

... Gale Warning now in effect until 2 am PST Tuesday...

* winds: southerly winds 25 to 35 kt... late afternoon and
evening storm force gusts to 50 kt.

Precautionary/preparedness actions...

A Gale Warning means winds of 34 to 47 knots are imminent or
occuring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
Harbor prior to the onset of gale conditions.