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California, San Francisco Bay Shoreline

Areal Flood Warning

Statement as of 10:13 PM PST on January 22, 2017

Expires 6:45 PM EST on January 23, 2017


... A Flood Warning for urban areas and small streams remains in
effect until 345 PM PST Monday for southeastern Santa Clara and
northwestern San Benito counties...

At 1008 PM PST, Doppler radar and automated rain gauges indicated
moderate rainfall continues over the warned area and Pacheco creek
continues to rise to near flood stage. Run-off from recent rainfall
will likely result in continued rises through late tonight that will
result in additional flooding.

Some locations that will experience flooding include...
northern Hollister, soap/San Felipe Lake, Frazier Lake area and
lover's Lane.

Precautionary/preparedness actions...

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

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate Route.

A Flood Warning means that flooding is imminent or occurring. All
interested parties should take necessary precautions immediately.


Lat... Lon 3696 12136 3694 12136 3690 12138 3689 12147
      3691 12153 3694 12155 3698 12152 3700 12145
      3697 12141 3697 12137


Rgass



Flash Flood Watch, Areal Flood Advisory

Statement as of 2:53 AM PST on January 23, 2017

Expires 6:45 PM EST on January 23, 2017


... Flash Flood Watch remains in effect through this evening...

The Flash 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 Monument... 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 this evening.

* Periods of heavy rain on already saturated soils and full
reservoirs will impact the region through this evening.

* The primary impacts will be localized ponding of water on low
lying roadways with poor drainage... rapid rises on streams and
creeks with some likely exceeding bankfull... some river
flooding... and potential rock and mud slides. Recent burn
scars will also be susceptible to debris flows during periods
of intense rainfall.

Precautionary/preparedness actions...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should flash flood warnings be issued.





343 PM PST sun Jan 22 2017

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

* Flood Advisory for...
a dam floodgate release in...
southeastern Santa Clara County in northern California...
northwestern San Benito County in central California...

* until 345 PM PST Monday

* local water district and County emergency management personnel
have indicated that limited portions of the spillway structure for
Pacheco Lake have been compromised from prior storm activity and
spillway releases this winter. Specifically, there is concern that
renewed spillway releases anticipated in response to forecast
rainfall through the remainder of this weekend could cause
additional erosion of the spillway structure, which could lead to
excessive sediment and/or runoff to enter Pacheco creek
downstream. Excessive runoff and sediment could cause or increase
flooding downstream.

* NWS Monterey is forecasting only minor additional accumulations of
of less than a quarter of an inch through Monday in the Pacheco creek
watershed that feeds the Reservoir. Development of Post-frontal
convective thunderstorms through tonight could cause brief heavy rain
and locally higher amounts. Rainfall this weekend will likely be
accompanied by increased releases over the spillway, but it is
currently not expected that additional releases would pose additional
risk to the spillway or downstream areas.

* Engineers from the local water district as well as California
division of safety of dams and California department of water
resources engineers are on-site conducting inspections and
assessing the level of risk posed by current and expected
conditions. County emergency managers are aware of the situation
and are taking appropriate action and following necessary
protocols.

* There is no expectation at this time that a dam breach or failure
would occur. The dam itself is not compromised; it is only the
spillway structure that is under investigation.

* Should the situation worsen and elevate the threat to human life
and property, either prior to or during storm activity this
weekend, a Flash Flood Warning will be issued for affected areas.
Stay tuned to your wireless emergency alerts via cellular phone,
emergency alert system interruptions on local radio and television
stations, NOAA Weather Radio, twitter (@nwsbayarea), facebook
(nwsbayarea), and other local news and notification services
should a Flash Flood Warning be necessary.

Precautionary/preparedness actions...

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

Be especially cautious at night when it is harder to recognize the
dangers of flooding.


Lat... Lon 3710 12127 3704 12127 3697 12133 3687 12136
      3687 12145 3689 12150 3690 12157 3696 12154
      3699 12149 3699 12144 3697 12141 3709 12131




Weather Severe Map
Alabama - Flood Warning , Wind Advisory , Public Information Statement
Alaska - Wind Chill Advisory , Winter Weather Advisory , Blizzard Warning , Special Statement
Arizona - Areal Flood Watch , Flash Flood Watch , Wind Advisory , Winter Weather Advisory , Winter Storm Warning , Freeze Watch
Arkansas - Flood Warning , Record Report , Public Information Statement
California - Areal Flood Warning , Flood Warning , High Surf Advisory, Flash Flood Watch , Flash Flood Watch , High Surf Advisory , Flash Flood Watch, Areal Flood Advisory , Wind Advisory , Winter Storm Warning , Winter Weather Advisory , Special Statement , Beach Hazard Statement, High Surf Warning , Hydrologic Statement , Record Report , Public Information Statement
Colorado - Winter Weather Advisory , Winter Storm Warning , Avalanche Warning
Connecticut - Coastal Flood Advisory , Coastal Flood Advisory, Areal Flood Watch , Wind Advisory , High Wind Warning , Winter Weather Advisory , Public Information Statement
Delaware - Coastal Flood Warning, Coastal Flood Advisory , High Wind Warning , Public Information Statement
District of Columbia - Coastal Flood Advisory , Wind Advisory
Florida - Flood Warning , Coastal Flood Advisory , High Surf Advisory, Coastal Hazard Statement , High Surf Advisory, Beach Hazard Statement, Coastal Hazard Statement , Coastal Hazard Statement , Wind Advisory , Record Report , Public Information Statement
Georgia - Flood Warning , Wind Advisory , Lake Wind Advisory , Hydrologic Statement , Record Report , Public Information Statement
Guam - High Surf Advisory
Hawaii - High Surf Advisory
Idaho - Areal Flood Advisory , Winter Weather Advisory , Winter Storm Warning , Avalanche Warning
Illinois - Flood Warning , Flood Advisory , Flood Watch , Hydrologic Statement
Indiana - Flood Warning , Flood Advisory , Record Report , Public Information Statement
Iowa - Flood Warning , Winter Storm Watch
Kansas - Record Report , Public Information Statement
Kentucky - Flood Warning , Areal Flood Advisory
Louisiana - Flood Warning , Public Information Statement
Maine - Winter Storm Watch , Winter Weather Advisory
Maryland - Coastal Flood Warning , Coastal Flood Advisory , High Surf Advisory, Coastal Flood Advisory , Wind Advisory , High Wind Warning , Winter Weather Advisory , Public Information Statement
Massachusetts - Coastal Flood Advisory, Coastal Flood Watch , Coastal Flood Advisory, Coastal Flood Watch, Areal Flood Watch , Areal Flood Watch , Wind Advisory , High Wind Warning , Winter Weather Advisory , Special Statement
Michigan - Flood Advisory , Special Statement , Record Report , Public Information Statement
Minnesota - Winter Storm Watch , Record Report
Mississippi - Flood Warning , Record Report , Public Information Statement
Missouri - Record Report
Montana - Freezing Rain Advisory , Freezing Fog Advisory , Winter Weather Advisory
Nebraska - Winter Storm Watch
Nevada - Areal Flood Watch , Wind Advisory , Winter Storm Warning , Winter Weather Advisory
New Hampshire - Winter Storm Watch , Winter Weather Advisory
New Jersey - Coastal Flood Warning, Coastal Flood Advisory , Coastal Flood Warning, Coastal Flood Advisory, Areal Flood Watch , Coastal Flood Advisory, Areal Flood Watch , Areal Flood Watch , Wind Advisory , High Wind Warning , Winter Weather Advisory , Public Information Statement
New Mexico - High Wind Watch , Wind Advisory , Winter Weather Advisory , Winter Storm Warning
New York - Coastal Flood Warning , Coastal Flood Advisory, Areal Flood Watch , Coastal Flood Warning, Coastal Flood Watch, Areal Flood Watch , Coastal Flood Warning, Coastal Flood Watch , Areal Flood Watch , Wind Advisory , High Wind Warning , Winter Weather Advisory , Winter Storm Warning , Public Information Statement
North Carolina - Areal Flood Advisory , Wind Advisory , Record Report , Public Information Statement
North Dakota - Record Report
Ohio - Flood Warning , Record Report , Public Information Statement
Oklahoma - Public Information Statement
Oregon - High Surf Advisory , Dense Fog Advisory
Pennsylvania - Wind Advisory , High Wind Warning , Winter Weather Advisory , Winter Storm Warning , Public Information Statement
Puerto Rico - Coastal Hazard Statement
Rhode Island - Areal Flood Watch , Wind Advisory , High Wind Warning
South Carolina - Flood Warning , Lake Wind Advisory , Record Report , Public Information Statement
South Dakota - Winter Storm Watch
Tennessee - Flood Warning , Wind Advisory , Hydrologic Statement , Record Report
Texas - Flood Warning , High Wind Watch , Public Information Statement
Utah - Winter Weather Advisory , Winter Storm Warning , Avalanche Warning , Public Information Statement
Vermont - Wind Advisory , Winter Weather Advisory , Special Statement
Virginia - Flood Warning, Areal Flood Warning , Coastal Flood Advisory , Coastal Flood Advisory, High Surf Advisory , Areal Flood Watch , Wind Advisory , Winter Weather Advisory , Record Report , Public Information Statement
Washington - Dense Fog Advisory
West Virginia - Areal Flood Watch , Winter Weather Advisory , Record Report , Public Information Statement
Wisconsin - Flood Warning , Flood Watch , Winter Storm Watch , Dense Fog Advisory , Hydrologic Statement , Record Report
Wyoming - Winter Weather Advisory , Winter Storm Watch , Winter Storm Warning , Public Information Statement

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