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California, Lassen-Eastern Plumas-Eastern Sierra Counties

Winter Weather Advisory

Statement as of 2:58 PM PST on February 19, 2017

Expires 7:00 PM EST on February 21, 2017


... Winter Weather Advisory now in effect from 10 PM this evening
to 4 PM PST Tuesday above 5500 feet...

The Winter Weather Advisory above 5500 feet is now in effect from
10 PM this evening to 4 PM PST Tuesday.

* Timing: periods of light snow today will increase this
evening, with heavy rain and snow pushing into the region late
tonight and continuing through early Tuesday morning.

* Snow accumulations: above 6500 feet... 1 to 3 feet. Between
5500 and 6500 feet... 8 to 16 inches. Heaviest snow expected
west of Highway 395. Below 5500 feet... up to 8 inches with
less than 4 inches below 5000 feet.

* Winds: south to southwest winds 20 to 30 mph with gusts to 50
mph. Gusts on higher ridges over 90 mph.

* Snow levels: between 5000 and 5500 feet through this evening,
then rising to near 6500 feet Monday morning before falling
again to between 5000 and 5500 feet Monday night.

* Impacts: heavy snow will create hazardous conditions, with
travel being impacted over fredonyer Summit and Yuba Pass.
Whiteout conditions are likely over the passes and in the
backcountry.

Precautionary/preparedness actions...

Avoid travel tonight through Monday night in higher elevations of
northeast California, where major travel delays are likely. Be
sure to allow extra time to reach your destination. Leave extra
space between vehicles since it takes longer to stop on slick
roadways.




Flood Warning, Areal Flood Warning

Statement as of 5:04 PM PST on February 19, 2017

Expires 7:00 PM EST on February 23, 2017


... Forecast flooding increased from moderate to major severity...
the Flood Warning continues for
the Middle Fork feather river near Portola.
* From late Monday night to late Thursday night.
* At 2:30 PM Sunday the stage was 6.1 feet.
* Flood stage is 8.5 feet.
* Major flooding is forecast.
* Forecast... rise above flood stage by early Tuesday morning and
continue to rise to near 10.7 feet by early Wednesday morning.The
river will fall below flood stage by late Thursday morning.
* Impact... at 10.5 feet... major flooding of lowlands...
roads... railroads... homes... businesses and structures along river
from Beckwourth to Sloat California... including Portola... with
significant damage. Sleepy pines motel and other low structures
along river in Portola flood. Hwy 89 near Clio flooded with
water possibly flowing across Hwy 70.



Lat... Lon 3988 12071 3983 12038 3981 12039 3972 12058 3985 12072





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


Areal Flood Watch

Statement as of 3:30 PM PST on February 19, 2017

Expires 7:00 PM EST on February 21, 2017


... Flood Watch remains in effect from 1 am PST Monday through
Tuesday afternoon...

The Flood Watch continues for

* a portion of northeast California, including the following
area, Lassen-eastern Plumas-eastern Sierra counties.

* From 1 am PST Monday through Tuesday afternoon

* a strong atmospheric river will bring heavy rain with high snow
levels. Moderate to heavy rain and snow melt will contribute to
increasing flows on rivers and streams with an enhanced flood
potential late tonight through Tuesday.

* The Middle Fork of the feather river near Portola is currently
forecast to briefly reach major flood stage with flooding also
possible for the Susan and pit river basins.

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 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.





Areal Flood Watch

Statement as of 3:30 PM PST on February 19, 2017

Expires 7:00 PM EST on February 21, 2017


... Flood Watch remains in effect from 1 am PST Monday through
Tuesday afternoon...

The Flood Watch continues for

* a portion of northeast California, including the following
area, Lassen-eastern Plumas-eastern Sierra counties.

* From 1 am PST Monday through Tuesday afternoon

* a strong atmospheric river will bring heavy rain with high snow
levels. Moderate to heavy rain and snow melt will contribute to
increasing flows on rivers and streams with an enhanced flood
potential late tonight through Tuesday.

* The Middle Fork of the feather river near Portola is currently
forecast to briefly reach major flood stage with flooding also
possible for the Susan and pit river basins.

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 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.





Weather Severe Map
Alabama - Dense Fog Advisory
Alaska - Blizzard Warning
American Samoa - Flash Flood Watch
California - Flood Warning, Areal Flood Warning , Areal Flood Warning , Flood Warning , Areal Flood Watch , Areal Flood Advisory , High Surf Advisory , Flood Watch, Areal Flood Watch , Flood Watch , Areal Flood Watch, Areal Flood Advisory , High Wind Warning, Wind Advisory , Wind Advisory , High Wind Watch , High Wind Warning , Wind Advisory, High Wind Watch , Winter Storm Warning , Winter Weather Advisory , Hydrologic Statement
Colorado - Fire Weather Warning , Public Information Statement
Florida - Dense Fog Advisory , Special Statement
Hawaii - High Surf Advisory , Wind Advisory
Idaho - Areal Flood Warning , Flood Warning , Areal Flood Advisory , Areal Flood Watch , Flood Watch , Flood Watch, Areal Flood Advisory , Wind Advisory , Winter Storm Warning , Winter Weather Advisory
Illinois - Dense Fog Advisory
Indiana - Dense Fog Advisory
Kansas - Fire Weather Watch , Fire Weather Warning
Kentucky - Dense Fog Advisory , Special Statement
Louisiana - Dense Fog Advisory
Mississippi - Dense Fog Advisory
Missouri - Dense Fog Advisory
Montana - Areal Flood Watch , Wind Advisory , Winter Weather Advisory , Dense Fog Advisory
Nebraska - Fire Weather Watch , Fire Weather Warning , Record Report
Nevada - Areal Flood Warning , Areal Flood Warning , Areal Flood Watch , Wind Advisory , High Wind Warning , Winter Storm Warning , Hydrologic Statement
North Dakota - Dense Fog Advisory
Ohio - Dense Fog Advisory
Oregon - Flood Warning , Areal Flood Watch , Flood Watch , Wind Advisory , High Wind Warning, Wind Advisory , High Wind Warning , Winter Storm Warning , Winter Weather Advisory
Pennsylvania - Dense Fog Advisory
South Dakota - Areal Flood Advisory
Tennessee - Special Statement
Texas - Severe Thunderstorm Warning , Areal Flood Warning , Flood Warning , Flash Flood Watch , Areal Flood Advisory , Areal Flood Advisory, Flash Flood Watch , Special Statement
Utah - Areal Flood Advisory
Washington - Areal Flood Watch , Winter Weather Advisory
West Virginia - Dense Fog Advisory
Wyoming - Areal Flood Advisory , High Wind Watch, High Wind Warning , High Wind Watch , High Wind Warning , Winter Storm Warning

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