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Flood Warning

FLOOD STATEMENT
NATIONAL WEATHER SERVICE SACRAMENTO CA
909 AM PST MON FEB 20 2017

...The Flood Warning continues for the following rivers in
California...

  Tuolumne River At Modesto
  Cosumnes River At Michigan Bar

...The Flood Warning continues for the following rivers in
California..
  San Joaquin River Near Vernalis

.Outflows out of Don Pedro are expected to increase this afternoon
or evening. This will result in higher stages on the Tuolumne and the mainstem of the San Joaquin River near Vernalis and locations downstream.
Heavy rainfall today and tonight will generate additional rises on all other San Joaquin River tributaries.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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:  http://www.wrh.noaa.gov/sto/hydro_data.php


The next statement will be issued Monday afternoon around 3 PM PST.

&&

CAC005-017-067-211908-
/O.EXT.KSTO.FL.W.0042.170221T0145Z-000000T0000Z/
/MHBC1.1.ER.170221T0145Z.170221T1100Z.000000T0000Z.NO/
909 AM PST MON FEB 20 2017

The Flood Warning continues for
  The Cosumnes River At Michigan Bar.
* from this afternoon until further notice...Or until the warning is
  cancelled.
* At  8:30 AM Monday the stage was 7.4 feet.
* Minor flooding is forecast.
* Expected to rise above flood stage of  12.0 FT this evening then
  forecast to crest near 15.0 FT early tomorrow morning then forecast
  to fluctuate near 15.0 FT thru early tomorrow morning then forecast
  to recede to near 14.0 FT late tomorrow morning.
* Flood stage 12.0 ft
* Monitor stage 7.0 ft
* Impact...Near 13.2 feet, Water floods houses in Wilton. The south
  bank levee near Wilton is overtopped.
* Impact...Near 12.0 feet, Water flows on to the road near Wilton.
* Impact...Near 8.0 feet, Low lying lands along the river begin to
  flood.


 &&

LAT...LON 3848 12133 3859 12103 3842 12092 3836 12124


$$



Avalanche Warning

CAZ072-NVZ002-211500-

URGENT - IMMEDIATE BROADCAST REQUESTED
AVALANCHE WARNING
FOREST SERVICE SIERRA AVALANCHE CENTER
RELAYED BY NATIONAL WEATHER SERVICE RENO NV
718 AM PST MON FEB 20 2017

THE FOLLOWING MESSAGE IS TRANSMITTED AT THE REQUEST OF THE FOREST
SERVICE SIERRA AVALANCHE CENTER.

...AN AVALANCHE WARNING IS IN EFFECT THROUGH TUESDAY MORNING...

THE FOREST SERVICE SIERRA AVALANCHE CENTER HAS ISSUED A
BACKCOUNTRY AVALANCHE WARNING.

* TIMING...IN EFFECT FROM 7 AM MONDAY MORNING THROUGH 7 AM TUESDAY
  MORNING.

* AFFECTED AREA...FOR THE SIERRA NEVADA MOUNTAINS OF CALIFORNIA
  AND NEVADA, FROM YUBA PASS TO EBBETTS PASS, INCLUDING THE LAKE
  TAHOE BASIN.

* AVALANCHE DANGER...HIGH AVALANCHE DANGER WILL EXIST AT ALL
  ELEVATIONS.

* REASON/IMPACTS...A STRONG ATMOSPHERIC RIVER STORM IS IMPACTING
  THE AREA. WIND SLAB, STORM SLAB, AND LOOSE WET AVALANCHE
  PROBLEMS WILL BE VERY LIKELY AT ALL ELEVATIONS. NATURAL AND
  HUMAN TRIGGERED AVALANCHES ARE EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVALANCHES MAY RUN LONG DISTANCES, INTO FLAT AREAS, AND CAN RUN
INTO MATURE FORESTS.

TRAVEL IN AVALANCHE TERRAIN IS NOT RECOMMENDED.

CONSULT WWW.SIERRAAVALANCHECENTER.ORG OR WWW.AVALANCHE.ORG FOR
MORE DETAILED INFORMATION.

SIMILAR AVALANCHE DANGER MAY EXIST AT LOCATIONS OUTSIDE THE
COVERAGE AREA OF THIS OR ANY AVALANCHE CENTER.

$$




Winter Storm Warning

URGENT - WINTER WEATHER MESSAGE
National Weather Service Reno NV
508 AM PST Mon Feb 20 2017

CAZ072-NVZ002-210000-
/O.CON.KREV.WS.W.0009.000000T0000Z-170222T0000Z/
Greater Lake Tahoe Area-
Including the cities of South Lake Tahoe, Truckee, Stateline,
and Incline Village
508 AM PST Mon Feb 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST
TUESDAY...

* Timing: Moderate to heavy snow and rain will continue through
  Tuesday with the heaviest snow expected this afternoon and
  evening.

* Snow Accumulations: Above 7500 feet...2 to 5 feet. Between 6500
  and 7500 feet...8 to 24 inches. Heaviest snow will be west of
  Highway 89 and along the Sierra crest. Below 6500 feet...Up to 8
  inches mainly on Tuesday.

* Winds: South to Southwest winds 25 to 35 mph with gusts to 55
  mph. Sierra ridge gusts over 100 mph, with peak gusts up to 150
  mph tonight.

* Wave Heights on Lake Tahoe: 2 to 5 feet with highest waves
  expected tonight from mid lake to the north and east shores.

* Snow Levels: Between 7000 and 7500 feet through this evening,
  possibly lowering to near 6500 feet at times during periods of
  heavy precipitation. Snow levels will then fall to near 6500
  feet by early Tuesday morning and below 6000 feet by Tuesday
  afternoon.

* Impacts: Heavy snow will create dangerous conditions, with
  travel being severely impacted over the Sierra passes. Snowfall
  rates will exceed 2 inches per hour at times, producing whiteout
  conditions over the passes and in the backcountry.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid travel today through Tuesday, you could be stuck in your
vehicle for many hours. If you must travel, prepare for long
delays and carry an emergency kit with extra food, water and
clothing. If you stay home, have a backup plan in case of power
outages.

&&

$$



Flood Watch

Flood Watch
National Weather Service Reno NV
420 AM PST Mon Feb 20 2017

CAZ072-NVZ002-210000-
/O.CON.KREV.FA.A.0004.000000T0000Z-170221T1800Z/
/00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greater Lake Tahoe Area-
Including the cities of South Lake Tahoe, Truckee, Stateline,
and Incline Village
420 AM PST Mon Feb 20 2017

...FLOOD WATCH REMAINS IN EFFECT THROUGH TUESDAY MORNING...

The Flood Watch continues for

* Portions of east central California and western Nevada,
  including the following areas, in east central California,
  Greater Lake Tahoe Area. In western Nevada, Greater Lake Tahoe
  Area.

* Through Tuesday morning

* A strong atmospheric river will bring heavy rain with high snow
  levels. Moderate to heavy rain along with snow melt below 7000
  feet will contribute to increasing flows on rivers and streams
  with an enhanced flood potential through Tuesday morning.

* The highest risk of flooding is along creeks, streams, and poor
  drainage areas, including the Upper Truckee River in South Lake
  Tahoe. The upper reaches of the Truckee and Carson rivers are
  forecast to rise to near monitor stage tonight into Tuesday, but
  at this time are expected to remain below flood stage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Small creeks and streams are the most susceptible to flooding.
Excessive rainfall may also generate rock and mud slides in steep
terrain. Persons in the Lake Tahoe area should take action to
clear blocked drains and areas where snow berms would allow water
to collect and damage property. Persons living along small creeks
and streams should monitor the latest weather information at
weather.gov/reno and be prepared to take action should flooding
occur.

&&

$$



Flood Warning

Flood Statement
National Weather Service Sacramento CA
959 AM PST SUN FEB 19 2017

CAC003-005-007-009-011-017-021-033-035-057-061-063-067-077-089-091-
095-099-101-103-109-113-115-240000-
/O.CON.KSTO.FA.W.0011.000000T0000Z-170224T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Colusa CA-Yolo CA-Sutter CA-Solano CA-Plumas CA-Alpine CA-Placer CA-
Shasta CA-Lassen CA-Amador CA-Tuolumne CA-Sacramento CA-Lake CA-
Stanislaus CA-San Joaquin CA-El Dorado CA-Calaveras CA-Tehama CA-
Butte CA-Glenn CA-Sierra CA-Yuba CA-Nevada CA-
959 AM PST SUN FEB 19 2017

...A FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS REMAINS IN
EFFECT UNTIL 400 PM PST THURSDAY FOR COLUSA...YOLO...SUTTER...
SOLANO...PLUMAS...ALPINE...PLACER...SHASTA...LASSEN...AMADOR...
TUOLUMNE...SACRAMENTO...LAKE...STANISLAUS...SAN JOAQUIN...EL
DORADO...CALAVERAS...TEHAMA...BUTTE...GLENN...SIERRA...YUBA AND
NEVADA COUNTIES...

* Interior Northern California will experience another significant
  uptick in flooding problems starting late tonight and continuing
  through Monday night as an intense Atmospheric River type storm
  arrives.

* Our entire region has saturated soils and many flooded areas
  already.  This will enhance the impact of additional heavy rains
  this week.

* Additional stress will be placed on levees, rivers, creeks, and
  streams.

* We may see flooding in locations which haven`t been impacted in
  many years.

* We are strongly advising all residents in interior Northern
  California to be prepared for flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be prepared to evacuate if flooding should affect your area.  Gather
a "go bag" with important items like medications and hard to replace
documents.  Do not forget to plan for you pets and animals.

Please never drive across flooded waters and roadways, especially
flowing water.  Most people who are killed or injured during floods
are attempting to drive through flooded waters.  Turn around, don`t
drown!

LAT...LON 3725 12146 3810 12157 3808 12230 3832 12206
      3884 12229 3867 12262 3907 12309 3950 12306
      3955 12288 4033 12307 4058 12269 4117 12246
      4118 12250 4118 12133 4059 12132 3835 11963
      3776 11988 3780 12018 3713 12122

$$

MK



U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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