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Flood Watch

Flood Watch
National Weather Service Reno NV
319 PM PDT Mon May 22 2017

Lassen-Eastern Plumas-Eastern Sierra Counties-
Greater Lake Tahoe Area-Mono County-Greater Reno-Carson City-
Minden Area-
Including the cities of South Lake Tahoe, Truckee, Bridgeport,
Mammoth Lakes, Stateline, Incline Village, and Gardnerville
319 PM PDT Mon May 22 2017


The Flood Watch continues for

* Portions of California and western Nevada, including the
  following areas, in California, Greater Lake Tahoe Area,
  Lassen-Eastern Plumas-Eastern Sierra Counties, and Mono
  County. In western Nevada, Greater Lake Tahoe Area and Greater
  Reno-Carson City-Minden Area.

* Through Wednesday evening

* Warming temperatures will accelerate snowpack melt across the
  eastern Sierra through early week. Best estimates for flows
  this week coming out of unregulated eastern Sierra creeks and
  streams are likely to be 2-2.5 times current flows with
  smaller creeks likely to see 3 times current flows.

* Daily peak flows on small creeks and streams typically occur
  during the evening and overnight hours.


Excessive runoff may also generate rock and mud slides in steep
terrain. Persons living along small creeks and streams should
monitor the latest weather information at and be
prepared to take action should flooding occur.



Special Weather Statement

Special Weather Statement
National Weather Service RENO NV
343 PM PDT Mon May 22 2017

Lassen-Eastern Plumas-Eastern Sierra Counties-
Greater Lake Tahoe Area-Mono County-
Mineral and Southern Lyon Counties-Greater Reno-Carson City-
Minden Area-
Including the cities of Portola, Susanville, Westwood,
Sierraville, Loyalton, South Lake Tahoe, Tahoe City, Truckee,
Markleeville, Bridgeport, Coleville, Lee Vining, Mammoth Lakes,
Hawthorne, Yerington, Smith Valley, Mina, Schurz, Stateline,
Glenbrook, Incline Village, Sparks, Verdi, Gardnerville,
and Virginia City
343 PM PDT Mon May 22 2017

...Snowmelt Flooding Concerns Increase Over the Eastern Sierra
and Western Nevada...

With temperatures rising well above normal through Wednesday,
snowmelt will accelerate across the eastern Sierra. The increase
in snowmelt will cause daily rises in many small streams from Mono
County north through the northern Sierra. Snowmelt flow typically
peaks in smaller streams late in the evening or overnight.
Farther downstream flows will continue to increase through next
week as the smaller streams add water to the main rivers.

Small streams, and Walker, Carson, and Truckee River flooding

* On the WEST WALKER RIVER, minor flooding is expected from the
  Walker River Canyon into Antelope Valley and high flows through
  Smith Valley and downstream through Wilson Canyon. There is
  minor flooding occurring just below Wilson Canyon.

* On the EAST WALKER RIVER, minor flooding is ongoing and
  expected to continue from just above Strosnider Ditch to the
  confluence with the West Walker.

  to crest just below moderate flood stage. Minor flood stage
  will be reached Wednesday morning and flow will peak out late

* No flooding is expected below Weber Reservoir at this time.

* SMALL STREAMS draining the eastern Sierra could see flows in
  excess of 2 to 3 times their current flows causing flooding
  near the streams from southern Mono County north through the
  Tahoe Basin and into parts of Sierra and Plumas Counties.

  CARSON VALLEY...are likely to experience minor flooding of farm
  and ranch lands.

* The TRUCKEE RIVER will likely see minor flooding below Lake
  Tahoe to Truckee along Highway 89 and nearby areas. This is
  likely to be confined to areas immediately adjacent to the river
  with impacts confined to campgrounds and bike trails.


Flood Advisory

Flood Advisory
National Weather Service Reno NV
342 PM PDT MON MAY 22 2017

Mono CA-Douglas NV-Lyon NV-
342 PM PDT MON MAY 22 2017

The National Weather Service in Reno has issued a

* Flood Advisory for...
  Snowmelt in...
  Northern Mono County in northern California...
  Douglas County in western Nevada...
  Southern Lyon County in west central Nevada...

* Until 330 PM PDT Friday

* The West Walker River will approach and likely exceed minor flood
  stage during the night between Tuesday and Thursday.

* Warming temperatures will produce increased snowmelt runoff and
  high flows in area streams and rivers through late this week.
  These increased flows will produce additional minor flooding along
  the West Walker River and exacerbate already existing minor
  flooding in Antelope Valley and the southern end of the Mason
  Valley. The highest flows are likely in the evening and overnight
  on the West Walker River.

* Flooding of pastures, rural roads and campgrounds is possible
  through the West Walker River Canyon. Additional flooding of
  agricultural areas in Antelope Valley along the West Walker River
  is likely along with high water through Smith Valley and Wilson

* Along the East Walker River minor flooding is expected to continue
  from above Strosnider Ditch to the confluence with the West Walker

LAT...LON 3889 11912 3881 11903 3872 11896 3862 11896
      3863 11899 3869 11901 3875 11904 3881 11908
      3885 11913 3881 11917 3879 11923 3881 11928
      3880 11932 3876 11935 3870 11944 3864 11947
      3856 11946 3849 11944 3837 11943 3838 11948
      3850 11948 3866 11952 3875 11943 3883 11936
      3886 11928 3882 11922 3886 11919



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