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3 products issued by NWS for: Stanford CA
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Flood Warning

Flood Statement
National Weather Service San Francisco CA
600 AM PST SUN JAN 22 2017

CAC069-085-232345-
/O.CON.KMTR.FA.W.0020.000000T0000Z-170123T2345Z/
/00000.0.MC.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Santa Clara CA-San Benito CA-
600 AM PST SUN JAN 22 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 552 AM PST, Doppler radar and automated rain gauges indicated an
area of heavy rainfall across the warned area.

Additional rainfall amounts of 1-2 inches are possible in the warned
area today and Monday.  Development of convective storms accompanied
by heavy rainfall and lightning and hail are also possible.

NWS is retaining this Areal Flood Warning for the area, assuming
standing water on the Pacheco Creek floodplain and Soap Lake area
remains problematic and additional rain could exacerbate conditions.
The Pacheco Creek stream gage near Dunneville is currently far below
the flood stage of 12 feet, but could rise rapidly in response to
rainfall today.

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

$$

MWS




Flash Flood Watch

FLOOD WATCH
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
350 AM PST SUN JAN 22 2017

...FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE ENTIRE SAN
FRANCISCO BAY AREA AND CENTRAL COAST THOUGH THIS AFTERNOON...

.A STRONG COLD FRONT PUSHING THROUGH THE REGION WILL PRODUCE
PERIODS OF MODERATE TO HEAVY RAINFALL THROUGH THIS MORNING. IN
ADDITION, SHOWERS AND THUNDERSTORMS ANTICIPATED THIS AFTERNOON
WILL ALSO PRODUCE BRIEF HEAVY DOWNPOURS. THIS ADDITIONAL RAINFALL
ON ALREADY SATURATED SOILS WILL LIKELY LEAD TO FLASH FLOODING OF
AREA STREAMS AND RIVERS AS WELL AS LOCAL URBAN AREAS.

CAZ006-505>513-516>518-528>530-230000-
/O.CON.KMTR.FF.A.0004.000000T0000Z-170123T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN FRANCISCO-
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY INTERIOR VALLEYS-NORTH BAY MOUNTAINS-
SAN FRANCISCO BAY SHORELINE-SAN FRANCISCO PENINSULA COAST-
EAST BAY INTERIOR VALLEYS-EAST BAY HILLS AND THE DIABLO RANGE-
SANTA CRUZ MOUNTAINS-SANTA CLARA VALLEY INCLUDING SAN JOSE-
SOUTHERN SALINAS VALLEY/ARROYO SECO AND LAKE SAN ANTONIO-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
MOUNTAINS OF SAN BENITO COUNTY AND INTERIOR MONTEREY COUNTY
INCLUDING PINNACLES NATIONAL MONUMENT-
NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
INCLUDING THE CITIES OF...SAN FRANCISCO...TAMALPAIS-HOMESTEAD...
SAUSALITO...SANTA ROSA...SOUTH SANTA ROSA...NAPA...SAN RAFAEL...
PETALUMA...NOVATO...ROHNERT PARK...ANGWIN...
LAGUNITAS-FOREST KNOLLS...WOODACRE...OAKLAND...FREMONT...
HAYWARD...DALY CITY...BERKELEY...PACIFICA...CONCORD...ANTIOCH...
LIVERMORE...WALNUT CREEK...PLEASANTON...PITTSBURG...SAN RAMON...
BLACKHAWK...SCOTTS VALLEY...BOULDER CREEK...DAY VALLEY...
SAN JOSE...GREENFIELD...KING CITY...SALINAS...SANTA CRUZ...
WATSONVILLE...LIVE OAK...SEASIDE...MONTEREY...MARINA
350 AM PST SUN JAN 22 2017

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS AFTERNOON...

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 AFTERNOON.

* PERIODS OF HEAVY RAIN ON ALREADY SATURATED SOILS WILL IMPACT THE
  REGION THROUGH THIS AFTERNOON.

* 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.

&&

$$




Flood Advisory

Flood Advisory
National Weather Service San Francisco CA
1239 AM PST SUN JAN 22 2017

CAC069-085-222345-
/O.CON.KMTR.FA.Y.0023.000000T0000Z-170122T2345Z/
/00000.N.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Santa Clara CA-San Benito CA-
1239 AM PST SUN JAN 22 2017

...THE FLOOD ADVISORY FOR A DAM FLOODGATE RELEASE REMAINS IN EFFECT
UNTIL 345 PM PST SUNDAY FOR SOUTHEASTERN SANTA CLARA AND NORTHWESTERN
SAN BENITO COUNTIES...

* 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 an additional 1-2" of rainfall through
  the remainder of the weekend in the Pacheco Creek watershed that
  feeds the reservoir.  Development of post-frontal convective
  thunderstorms over the watershed Sunday afternoon could increase
  local precipitation totals over the weekend.  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

$$

RGass




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