Martinez, CA

5:56 PM PST on February 20, 2017 (GMT -0800)
Martinez - Mountain View | | Change Station

Elev 141 ft 38.01 °N, 122.12 °W | Updated 3 seconds ago

54.0 °F
Feels Like 54.0 °F
Wind Variable Wind from ESE
Gusts 5.0 mph

High -- | Low -- °F
--% Chance of Precip.
High -- | Low -- °F
Precip. -- in
Pressure 29.87 in
Visibility 1.5 miles
Clouds Overcast 2600 ft
Dew Point 53 °F
Humidity 96%
Rainfall 1.32 in
Snow Depth Not available.
6:51 AM 5:53 PM
Waning Crescent, 29% visible
METAR KCCR 210153Z 14008KT 1 1/2SM RA BR OVC026 13/12 A2991 RMK AO2 SLP113 P0021 T01280122
Pressure 29.87 in
Visibility 1.5 miles
Clouds Overcast 2600 ft
Dew Point 53 °F
Humidity 96%
Rainfall 1.32 in
Snow Depth Not available.
6:51 AM 5:53 PM
Waning Crescent, 29% visible
METAR KCCR 210153Z 14008KT 1 1/2SM RA BR OVC026 13/12 A2991 RMK AO2 SLP113 P0021 T01280122

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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



Feb. 20, 2017 Rise Set
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Air Quality

  Air Quality AQ Index Pollutant
Not available.

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Earthquake Activity

City Distance Mag. Time & Date
Minimum magnitude displayed is 2.5.

Coastal Water Temperatures

Place Temperature


Nearby Weather Stations

Station Location Temp. Windchill Dew Point Humidity Wind Precip. Elev Updated Type

Watches & Warnings

Flash Flood Warning
Issued: 4:34 PM PST Feb. 20, 2017 – National Weather Service

The National Weather Service in the San Francisco Bay area has issued

* Flash Flood Warning for...
south central Alameda County in northern California...

* until 630 PM PST

* at 430 PM PST, stream gages on The Alameda creek indicated minor
flooding was occurring along The Alameda creek in Niles Canyon
with flooding also occuring upstream near Sunol. Moderate to heavy
rain is forecast to continue across The Alameda creek basin
through early evening which will result in continued flooding and
could result in further rises on the creek.

* Some locations that will experience flooding include...
Niles Canyon, areas near Alameda creek and local tributary creeks.

Precautionary/preparedness actions...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

Lat... Lon 3761 12195 3761 12184 3760 12180 3758 12176
      3755 12175 3753 12177 3756 12180 3755 12183
      3752 12181 3750 12174 3749 12176 3749 12183
      3758 12191 3758 12194 3756 12195 3758 12200

Areal Flood Watch
Issued: 5:12 AM 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

* 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: 5:23 AM PST Feb. 20, 2017 – National Weather Service

... Wind Advisory remains in effect until 1 PM PST this
... 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

* 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, Small Craft Advisory
Issued: 2:24 PM PST Feb. 20, 2017 – National Weather Service

... Gale Warning remains in effect until 11 PM PST this evening...
... Small Craft Advisory in effect from 11 PM this evening to
10 am PST Tuesday...

The National Weather Service in San Francisco has issued a Small
Craft Advisory... which is in effect from 11 PM this evening to
10 am PST Tuesday.

* Winds: southerly winds 20 to 30 kt with frequent gusts to 40 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.

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners... especially those operating smaller
vessels should avoid navigating in these conditions.