National Weather Service

Watches, Warnings & Advisories
NWS Homepage

2 products issued by NWS for:
Share |

Flood Warning

150 PM PST MON FEB 27 2017

...The Flood Warning continues for the following rivers in
  San Joaquin River Near Vernalis
  Tuolumne River At Modesto

.Little change or minor receding expected into Wednesday.

Forecasts are based on present and forecasted meteorological and
hydrologic conditions at time of issuance.


Unlisted forecast points are expected to remain below monitor stage.
All those affected by river conditions should remain alert for rapid
changes and for possible forecast revisions.

For more hydrologic information and stage definitions refer to the
following web site:

The next statement will be issued Tuesday, February 28 at 10 AM PST.


150 PM PST MON FEB 27 2017

The Flood Warning continues for
  The San Joaquin River Near Vernalis.
* At 12:45 PM Monday the stage was 30.2 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast to fluctuate near 30.0 FT thru tomorrow morning then
  forecast to recede to near 29.5 FT late Wednesday morning then
  forecast to fluctuate near 29.5 FT thru near Wednesday noon.
* Flood stage 29.0 ft
* Monitor stage 24.5 ft
* Impact...Near 26.0 feet, Severe seepage occurs outside the levees.
  The area covered by seepage will increase as the river stage rises.
* Impact...Near 21.0 feet, Seepage begins into crop area outside of


LAT...LON 3772 12141 3777 12123 3765 12109 3756 12127


Flash Flood Watch

Flood Watch
National Weather Service Sacramento CA
954 AM PST Mon Feb 27 2017

Carquinez Strait and Delta-Northern San Joaquin Valley-
954 AM PST Mon Feb 27 2017


The Flash Flood Watch continues for

* A portion of northern California...including the following
  areas...Carquinez Strait and Delta and Northern San Joaquin

* Through late Thursday night.

* Don Pedro spillway flows have ended but flood releases continue
  from the dam, resulting in high river levels. Other local dams
  continue to make large reservoir releases with high river levels
  along the Lower San Joaquin River north of Grayson into the
  south delta. These elevated levels are causing flooding in the low-
  lying areas along the river and increasing concerns on the
  levees in the area.

* Local Delta levees continue to see high river levels. San
  Joaquin County officials are reporting more levee concerns
  daily. As a precaution, those county officials and the National
  Weather Service are encouraging local residents to be prepared
  to take action in the event that levee conditions were to deteriorate.


A Flash Flood Watch associated with levees means that there are
conditions that could affect levee stability. If levee conditions
were to deteriorate into a failure, it could lead to flash
flooding and the rapid arrival of flood waters within the area
protected by the levee. People in the area of the Flash Flood
Watch should monitor NOAA Weather Radio and other news outlets
for updates to this situation. Be prepared to quickly evacuate
should a Flash Flood Warning be issued.



U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
Page last modified: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE