« View county listFlood Advisory
Plumas CA-Mono CA-Alpine CA-El Dorado CA-Placer CA-Sierra CA-
Nevada CA-Washoe NV-Douglas NV-Carson City NV-
847 AM PDT TUE MAY 23 2017
The National Weather Service in Reno has issued a
* Small Stream Flood Advisory for...
Plumas County in northern California...
Mono County in northern California...
Alpine County in northern California...
El Dorado County in northern California...
Placer County in central California...
Sierra County in northern California...
Nevada County in northern California...
Southern Washoe County in western Nevada...
Douglas County in western Nevada...
Western Carson City in western Nevada...
* Until 830 AM PDT Tuesday
* Periods of rapid snow melt are likely to continue through the
Memorial Day weekend. This will lead to high flows and minor
flooding near unregulated creeks and streams leading out of the
* The greatest risk for flooding will occur through Thursday morning
and again over the Memorial Day weekend from Saturday to Tuesday
* Daily peak flows on small creeks and streams typically occur
during the evening and overnight hours.
Creeks and streams will run fast and very cold, bringing the risk of
hypothermia for those without protective gear. Those with plans to
camp in the Sierra over the Memorial Day weekend should be prepared
to quickly leave creek side campsites. Hikers will want to be
cautious while trying to cross creeks and streams.
LAT...LON 3748 11885 3759 11903 3774 11913 3773 11926
3788 11920 3795 11932 3809 11935 3820 11963
3845 11968 3869 11998 3881 12003 3885 12016
3920 12025 3960 12046 3971 12066 3990 12074
3938 11983 3896 11984 3746 11843
$$Special Weather Statement
Lassen-Eastern Plumas-Eastern Sierra Counties-
Greater Lake Tahoe Area-Mono County-
Mineral and Southern Lyon Counties-Greater Reno-Carson City-
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.
* The WALKER RIVER THROUGH MASON VALLEY AND YERINGTON is expected
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.
* The upper parts of the CARSON RIVER...INCLUDING THE SOUTHWEST
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.