Livermore, CA

9:20 PM PST on February 20, 2017 (GMT -0800)
Buena Vista Ave | | Change Station

Elev 465 ft 37.67 °N, 121.76 °W | Updated 3 minutes ago

Overcast
Overcast
56.8 °F
Feels Like 56.8 °F
N
6.8
Wind Variable Wind from SSW

Today
High -- | Low -- °F
--% Chance of Precip.
Yesterday
High -- | Low -- °F
Precip. -- in
Pressure 29.99 in
Visibility 10.0 miles
Clouds Few 2500 ft
Mostly Cloudy 4000 ft
Overcast 4700 ft
Dew Point 51 °F
Humidity 80%
Rainfall 1.59 in
Snow Depth Not available.
6:49 AM 5:51 PM
Waning Crescent, 28% visible
METAR KLVK 210453Z 20011KT 10SM FEW025 BKN040 OVC047 14/11 A2999 RMK AO2 RAE12 SLP153 P0001 T01390111
Pressure 29.99 in
Visibility 10.0 miles
Clouds Few 2500 ft
Mostly Cloudy 4000 ft
Overcast 4700 ft
Dew Point 51 °F
Humidity 80%
Rainfall 1.59 in
Snow Depth Not available.
6:49 AM 5:51 PM
Waning Crescent, 28% visible
METAR KLVK 210453Z 20011KT 10SM FEW025 BKN040 OVC047 14/11 A2999 RMK AO2 RAE12 SLP153 P0001 T01390111

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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 Rise Set
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Minimum magnitude displayed is 2.5.

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

Watches & Warnings

Flash Flood Warning
Issued: 6:54 PM PST Feb. 20, 2017 – National Weather Service

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

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

* until 945 PM PST

* at 630 PM PST, stream gage reports indicated moderate flooding on
the Arroyo de la Laguna at Verona Road. At 6:30 PM PST the water
level there was at 17.4 feet and water levels were continuing to
rise. Moderate flooding begins at 17 feet.

* Some locations that will experience flooding include...
areas near and along Pleasanton Sunol Road between Pleasanton and
Sunol.

Precautionary/preparedness actions...

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

Please report flooding to your local law enforcement agency when you
can do so safely.

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 3765 12188 3759 12187 3758 12188 3765 12191


Blier



636 PM PST Mon Feb 20 2017

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

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

* until 1030 PM PST

* at 600 PM PST, the stream gage on Alameda creek in Niles Canyon
indicated a stream level of 11.2 feet. Flood stage at this
location is 9 feet. Moderate flooding is occurring. In addition, a
stream gage upstream on The Alameda creek near Sunol indicated
moderate flooding was occuring there as well. Radar indicates
periods of moderate to heavy rain will continue across The Alameda
creek basin for the next hour or two which will mean continued
flooding along The Alameda creek through much of the evening, and
possible additional 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
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: 5:23 AM 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: 9:09 PM PST Feb. 20, 2017 – National Weather Service

... Gale Warning remains 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.