Greater Lake Tahoe Area Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Areal Flood Advisory
Issued: 9:10 AM PDT May. 23, 2017 – National Weather Service

The National Weather Service in Reno has extended the

* flood advisory for...
snowmelt in...
Placer County in central California...
Nevada County in northern California...

* until 1130 am PDT Tuesday

* minor flooding continues along the upper portions of the Truckee
River from Tahoe City downstream to the confluence with the little
Truckee River below Boca Reservoir. The increased flows are a
combination of releases from Lake Tahoe and snowmelt.

* Sections of the bike path along Highway 89 will remain flooded
through the Memorial Day weekend. Campgrounds, backyards and
basements along the river near Highway 89 may be inundated by the
high flows.

Precautionary/preparedness actions...

The Truckee River will run fast and very cold, bringing the risk of
hypothermia for those without protective gear. Those with plans to
use campgrounds along the Truckee River over the Memorial Day
weekend should be prepared to quickly leave if high flows inundate
the campsite.


Lat... Lon 3938 12009 3934 12011 3931 12019 3926 12020
      3921 12019 3917 12018 3917 12014 3915 12015
      3915 12018 3918 12021 3921 12021 3928 12022
      3932 12023 3933 12019 3935 12014 3938 12011


Brong



847 am PDT Tue may 23 2017

The National Weather Service in Reno has issued a

* small stream flood advisory for...
snowmelt in...
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
Sierra.

* The greatest risk for flooding will occur through Thursday morning
and again over the Memorial Day weekend from Saturday to Tuesday
may 30th.

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

Precautionary/preparedness actions...

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


Brong


1208 PM PDT sun may 21 2017

... The flood advisory for snowmelt remains in effect until 145 PM PDT
Thursday for alpine and Douglas counties...

* minor flooding impacts will begin in parts of the Carson Valley
late Tuesday and continue through Thursday.

* Warming temperatures will cause increased snowmelt this week. This
increased snowmelt will raise flows in both the East Fork Carson
and West Fork Carson rivers.

* The increased flows will result in minor flooding along portions
of the West Fork Carson below Woodfords and into the Carson
Valley. This flooding will be confined mainly to farm and ranch
lands near the river, but a few rural roads could be impacted.

* Flows are likely to be highest during the overnight hours before
falling during the morning.

Precautionary/preparedness actions...

A flood advisory means river or stream flows are elevated, or ponding
of water in urban or other areas is occurring or is imminent.


Lat... Lon 3880 11967 3878 11969 3876 11972 3876 11974
      3880 11971 3882 11971 3887 11972 3891 11977
      3887 11978 3880 11977 3877 11981 3878 11982
      3881 11979 3888 11982 3892 11984 3900 11984
      3899 11980 3895 11976 3891 11970 3889 11969
      3885 11968




Lake Wind Advisory
Issued: 12:42 PM PDT May. 23, 2017 – National Weather Service

... Lake Wind Advisory in effect from 1 PM to 10 PM PDT
Wednesday...

The National Weather Service in Reno has issued a lake Wind
Advisory, which is in effect from 1 PM to 10 PM PDT Wednesday.

* Lakes affected: Tahoe, Donner, Fallen Leaf, Prosser and Boca.

* Winds: southwest to west 10 to 20 mph with gusts to 35 mph.

* Wave heights: 2 to 3 feet on Lake Tahoe.

* Small boats, kayaks and paddle boards will be prone to
capsizing and should remain off lake waters until conditions
improve.

Precautionary/preparedness actions...

Check lake conditions before heading out and be prepared for a
sudden increase in winds and wave heights. Consider postponing
boating activities on the lake until a day with less wind.





Special Statement
Issued: 3:43 PM PDT May. 22, 2017 – National Weather Service

... 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
summary:

* 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
Friday.

* 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.


Http://weather.Gov/Reno

Areal Flood Advisory
Issued: 9:10 AM PDT May. 23, 2017 – National Weather Service

The National Weather Service in Reno has extended the

* flood advisory for...
snowmelt in...
Placer County in central California...
Nevada County in northern California...

* until 1130 am PDT Tuesday

* minor flooding continues along the upper portions of the Truckee
River from Tahoe City downstream to the confluence with the little
Truckee River below Boca Reservoir. The increased flows are a
combination of releases from Lake Tahoe and snowmelt.

* Sections of the bike path along Highway 89 will remain flooded
through the Memorial Day weekend. Campgrounds, backyards and
basements along the river near Highway 89 may be inundated by the
high flows.

Precautionary/preparedness actions...

The Truckee River will run fast and very cold, bringing the risk of
hypothermia for those without protective gear. Those with plans to
use campgrounds along the Truckee River over the Memorial Day
weekend should be prepared to quickly leave if high flows inundate
the campsite.


Lat... Lon 3938 12009 3934 12011 3931 12019 3926 12020
      3921 12019 3917 12018 3917 12014 3915 12015
      3915 12018 3918 12021 3921 12021 3928 12022
      3932 12023 3933 12019 3935 12014 3938 12011


Brong



847 am PDT Tue may 23 2017

The National Weather Service in Reno has issued a

* small stream flood advisory for...
snowmelt in...
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
Sierra.

* The greatest risk for flooding will occur through Thursday morning
and again over the Memorial Day weekend from Saturday to Tuesday
may 30th.

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

Precautionary/preparedness actions...

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


Brong


1208 PM PDT sun may 21 2017

... The flood advisory for snowmelt remains in effect until 145 PM PDT
Thursday for alpine and Douglas counties...

* minor flooding impacts will begin in parts of the Carson Valley
late Tuesday and continue through Thursday.

* Warming temperatures will cause increased snowmelt this week. This
increased snowmelt will raise flows in both the East Fork Carson
and West Fork Carson rivers.

* The increased flows will result in minor flooding along portions
of the West Fork Carson below Woodfords and into the Carson
Valley. This flooding will be confined mainly to farm and ranch
lands near the river, but a few rural roads could be impacted.

* Flows are likely to be highest during the overnight hours before
falling during the morning.

Precautionary/preparedness actions...

A flood advisory means river or stream flows are elevated, or ponding
of water in urban or other areas is occurring or is imminent.


Lat... Lon 3880 11967 3878 11969 3876 11972 3876 11974
      3880 11971 3882 11971 3887 11972 3891 11977
      3887 11978 3880 11977 3877 11981 3878 11982
      3881 11979 3888 11982 3892 11984 3900 11984
      3899 11980 3895 11976 3891 11970 3889 11969
      3885 11968