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California, Greater Lake Tahoe Area

Winter Storm Warning

Statement as of 11:39 AM PST on February 21, 2017

Expires 7:00 AM EST on February 22, 2017


... Winter Storm Warning remains in effect until 4 am PST
Wednesday...

* timing: bands of snow will continue through tonight with the
heaviest snow expected through this evening. Snow may rapidly
vary in intensity over short distances.

* Additional snow accumulations: above 7000 feet... 8 to 14 inches.
Below 7000 feet... 5 to 10 inches. Locally up to 2 feet possible
in areas where heavy snow bands persist.

* Winds: southwest winds 10 to 20 mph with gusts to 35 mph. Sierra
ridge gusts near 100 mph.

* Wave heights on lake tahoe: 2 to 3 feet with highest waves
expected from mid lake to the north and east shores.

* Impacts: bands of heavy snow could produce rapid drops in
visibility with snowfall rates up to 2 inches per hour at
times, producing dangerous whiteout conditions especially
over the passes and in the backcountry.

Precautionary/preparedness actions...

Avoid travel through tonight, 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.





Areal Flood Warning

Statement as of 9:12 AM PST on February 21, 2017

Expires 9:00 AM EST on February 22, 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...

Officials have reported that Clear Creek out of Whiskeytown dam in
Shasta County will exceed the safe channel capacity and will flood.
Downstream locations impacted includes the environmental school and
other residents in low lying areas near the creek.

Precautionary/preparedness actions...

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

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


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


825 am PST Tue Feb 21 2017

The Flood Warning continues for
the Cosumnes river at Michigan Bar.
* At 7:30 am Tuesday the stage was 11.6 feet.
* Forecast to fluctuate near 12.0 ft thru this afternoon then
forecast to fall below flood stage of 12.0 ft near Friday noon then
forecast to recede to near 9.0 ft late tomorrow morning.
* Flood stage 12.0 ft
* monitor stage 7.0 ft
* 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





Hydrologic Statement, Avalanche Warning

Statement as of 10:35 AM PST on February 21, 2017

Expires 10:15 AM EST on February 22, 2017


Forecast information for
Bear River above Wheatland.
* At 9:45 am Tuesday the stage was 17.4 feet.
* Forecast to fall below monitor stage of 16.0 ft this evening then
forecast to recede to near 12.5 ft late tomorrow morning.
* Flood stage 24.0 ft
* monitor stage 16.0 ft
* impact... near 13.6 feet, Orchards within the levee downstream near
Pleasant Grove Road begin to flood.

&&

Lat... Lon 3899 12158 3903 12142 3897 12133 3882 12161





636 am PST Tue Feb 21 2017

The following message is transmitted at the request of the Forest
service Sierra avalanche center.

The Forest service Sierra avalanche center has continued a
backcountry avalanche warning.

* Timing... in effect through 7 am Wednesday 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 and storm slab 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.


636 am PST Tue Feb 21 2017

The following message is transmitted at the request of the Forest
service Sierra avalanche center.

The Forest service Sierra avalanche center has continued a
backcountry avalanche warning.

* Timing... in effect through 7 am Wednesday 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 and storm slab 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.



Weather Severe Map
Alaska - Winter Weather Advisory , Blizzard Warning , Winter Storm Watch
California - Areal Flood Warning , Flood Warning, Areal Flood Warning , Areal Flood Warning , Flood Warning , Areal Flood Advisory , Areal Flood Watch , High Surf Advisory , Flood Advisory , Areal Flood Watch, Areal Flood Advisory , Flash Flood Watch , Wind Advisory , High Wind Warning, Wind Advisory , Winter Storm Warning , Winter Weather Advisory , Hydrologic Statement , Hydrologic Statement, Avalanche Warning
Colorado - Winter Storm Watch , Fire Weather Warning, Fire Weather Watch , Fire Weather Watch , Fire Weather Warning , Fire Weather Watch, Fire Weather Warning , Public Information Statement
Delaware - Public Information Statement
Florida - Flood Warning , Coastal Hazard Statement
Idaho - Areal Flood Warning , Flood Warning , Areal Flood Warning , Flood Watch, Areal Flood Watch , Areal Flood Advisory , Areal Flood Watch , Areal Flood Advisory, Flood Watch , Wind Advisory , High Wind Warning , Winter Weather Advisory , Special Statement
Illinois - Special Statement , Hydrologic Statement
Indiana - Public Information Statement
Iowa - Flood Warning , Special Statement , Public Information Statement
Kansas - Public Information Statement
Kentucky - Special Statement
Maryland - Public Information Statement
Massachusetts - Freezing Rain Advisory , Special Statement
Minnesota - Flood Warning , Public Information Statement
Missouri - Dense Fog Advisory , Special Statement
Montana - Areal Flood Warning , Areal Flood Watch , High Wind Warning , Wind Advisory , Winter Storm Watch , Winter Weather Advisory , Special Statement
Nebraska - Winter Storm Watch , Fire Weather Warning , Special Statement , Record Report , Public Information Statement
Nevada - Areal Flood Warning , Flash Flood Warning , Flood Warning, Areal Flood Warning , Wind Advisory , High Wind Warning , Winter Storm Warning , Winter Weather Advisory , Avalanche Warning , Special Statement
New Jersey - Public Information Statement
New Mexico - High Wind Watch , Fire Weather Warning, Fire Weather Watch , Fire Weather Watch
New York - Freezing Rain Advisory , Special Statement
North Dakota - Flood Warning
Ohio - Public Information Statement
Oklahoma - Fire Weather Watch
Oregon - Flood Warning , Areal Flood Advisory , High Wind Warning, Wind Advisory , Wind Advisory , Winter Weather Advisory
Pennsylvania - Public Information Statement
Puerto Rico - Coastal Hazard Statement
South Dakota - Areal Flood Warning , Areal Flood Advisory , Wind Advisory , Air Quality Alert
Texas - Flood Warning , High Wind Watch , Fire Weather Watch , Fire Weather Warning , Public Information Statement
Utah - Wind Advisory , Winter Weather Advisory , Winter Storm Watch , Public Information Statement
Vermont - Freezing Rain Advisory , Special Statement
Washington - Areal Flood Watch , Areal Flood Advisory , Flood Watch, Areal Flood Watch
Wisconsin - Flood Warning , Areal Flood Warning , Flood Warning, Areal Flood Warning , Hydrologic Statement , Flood Warning, Hydrologic Statement , Public Information Statement
Wyoming - Areal Flood Warning , High Wind Warning , Winter Storm Watch , Winter Storm Warning , Special Statement , Air Quality Alert , Public Information Statement

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