weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

5 products issued by NWS for: South Lake Tahoe CA
Share |


Winter Storm Warning

URGENT - WINTER WEATHER MESSAGE
National Weather Service Reno NV
229 PM PDT Sun Oct 24 2021

CAZ072-NVZ002-252130-
/O.CON.KREV.WS.W.0002.211025T0000Z-211026T0600Z/
Greater Lake Tahoe Area-
229 PM PDT Sun Oct 24 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY
ABOVE 7000 FEET...

* WHAT...Heavy wet snow expected above 7000 feet. Total snow
  accumulations of 4-8 inches for Donner Pass and Echo Summit, 3-5
  inches for Spooner Summit, 12-18 inches for Mt Rose Summit,
  with multiple feet of snow for higher mountains. Communities
  around Truckee and the Tahoe Basin are likely to only get an
  inch or two, with mainly rain falling; however, there is a 30%
  chance of 6 inches of snow if snow levels fall faster than
  forecast.

* WHERE...Greater Lake Tahoe Area.

* WHEN...From 5 PM Sunday to 11 PM PDT Monday. Heaviest snowfall
  rates of 1-2 inches per hour possible at pass elevations
  between 8 PM Sunday and 4 AM Monday.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact the Monday morning commute. Strong winds
  could cause tree damage.

* ADDITIONAL DETAILS...Winds will gust up to 50 mph across the
  Truckee and Tahoe Basin areas with ridges gusting well over 100
  mph. This will result in extremely rough water on Lake Tahoe.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid travel if possible, 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.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$



Flood Warning

Flood Warning
National Weather Service Reno NV
119 PM PDT Sun Oct 24 2021

.An atmospheric river continues to bring heavy rainfall to the
region.

CAC003-017-035-057-061-063-091-NVC001-005-019-027-029-031-510-250215-
/O.NEW.KREV.FA.W.0002.211024T2019Z-211025T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Alpine CA-El Dorado CA-Lassen CA-Nevada CA-Placer CA-Plumas CA-
Sierra CA-Churchill NV-Douglas NV-Lyon NV-Pershing NV-Storey NV-
Washoe NV-Carson City NV-
119 PM PDT Sun Oct 24 2021

The National Weather Service in Reno has issued a

* Flood Warning for...
  Placer County in central California...
  Alpine County in northern California...
  El Dorado County in northern California...
  Southeastern Lassen County in northern California...
  Nevada County in northern California...
  Plumas County in northern California...
  Sierra County in northern California...
  Western Churchill County in west central Nevada...
  Northern Lyon County in west central Nevada...
  Southwestern Pershing County in west central Nevada...
  Douglas County in western Nevada...
  Storey County in western Nevada...
  Southern Washoe County in western Nevada...
  The Western Carson City in western Nevada...

* Until 715 PM PDT.

* At 119 PM PDT, Doppler radar and automated rain gauges indicated
  heavy rain. Flooding is ongoing or expected to begin shortly in
  the warned area. Between 1 and 4 inches of rain have fallen.

* Mudflow, rock falls and rises in creeks and streams are occurring
  in several locations with further impacts likely. There is also
  high likelihood for standing water on roadways.

* Some locations that will experience flooding include...
  Reno, Carson City, South Lake Tahoe, Chilcoot, Doyle, Verdi,
  Herlong, Stampede Reservoir, Beckwourth, Boca Reservoir,
  Sierraville, Prosser Creek Reservoir, Pyramid Lake, Incline
  Village, Kings Beach, Blairsden, Squaw Valley, Graeagle, Tahoe
  City and Alpine Meadows.

Additional rainfall amounts of 1 to 4 inches are possible in the
warned area with the highest rain rates anticipated this afternoon
and early evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.

Move away from recently burned areas. Life-threatening flooding of
creeks, roads, and normally dry stream beds is likely. The heavy
rains will likely trigger rockslides, mudslides and debris flows in
steep terrain, especially in and around these areas.

&&

LAT...LON 3972 12072 3990 12075 4019 12088 4043 12024
      4050 11953 3992 11914 3953 11953 3871 11998
      3881 12003 3885 12015 3919 12025 3945 12038
      3948 12044 3952 12043 3962 12048 3971 12063
      3968 12068

$$

DJ



Flood Advisory

Flood Advisory
National Weather Service Sacramento CA
952 AM PDT Sun Oct 24 2021

CAC005-007-009-011-017-021-057-061-063-067-077-091-095-099-101-109-
113-115-250900-
/O.NEW.KSTO.FA.Y.0006.211024T1652Z-211025T0900Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Amador CA-Butte CA-Calaveras CA-Colusa CA-El Dorado CA-Glenn CA-
Nevada CA-Placer CA-Plumas CA-Sacramento CA-San Joaquin CA-Sierra CA-
Solano CA-Stanislaus CA-Sutter CA-Tuolumne CA-Yolo CA-Yuba CA-
952 AM PDT Sun Oct 24 2021

The National Weather Service in Sacramento has issued a

* Urban and Small Stream Flood Advisory for...
  Colusa County in central California...
  Southeastern Glenn County in central California...
  Placer County in central California...
  Sacramento County in central California...
  Northern San Joaquin County in central California...
  Solano County in central California...
  Northern Stanislaus County in central California...
  Sutter County in central California...
  Yolo County in central California...
  Yuba County in central California...
  Amador County in northern California...
  Southern Butte County in northern California...
  Calaveras County in northern California...
  El Dorado County in northern California...
  Nevada County in northern California...
  Plumas County in northern California...
  Sierra County in northern California...
  Tuolumne County in northern California...

* Until 200 AM PDT Monday.

* At 952 AM PDT, We are seeing heavy rain across the area. This will
  cause widespread urban and small stream flooding.

* Some locations that will experience flooding include...
  Sacramento, Stockton, Elk Grove, Roseville, Fairfield, Vacaville,
  Citrus Heights, Folsom, Davis, Rocklin, Woodland, Galt, Oroville,
  Auburn, Grass Valley, Marysville, Placerville, Jackson, Carmichael
  and Fair Oaks.

Avoid travel today and this evening if you can.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3923 12265 3964 12175 3948 12132 3971 12086
      3885 12039 3868 12066 3853 12064 3859 12022
      3821 11988 3792 12156 3810 12157 3814 12228
      3812 12228 3807 12225 3807 12227 3816 12241
      3816 12220 3859 12213

$$

CM



Flood Watch

Flood Watch
National Weather Service Reno NV
841 AM PDT Sun Oct 24 2021

CAZ072-NVZ002-003-251200-
/O.CON.KREV.FA.A.0001.000000T0000Z-211025T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greater Lake Tahoe Area-Greater Lake Tahoe Area-Greater Reno-Carson
City-Minden Area-
Including the cities of Truckee, Virginia City, Stateline, Tahoe
City, Sparks, Glenbrook, Incline Village, Gardnerville, South Lake
Tahoe, Markleeville, and Verdi
841 AM PDT Sun Oct 24 2021

...FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING...

The Flood Watch continues for

* Portions of east central California and western Nevada, including
  the following areas, in east central California, Greater Lake
  Tahoe Area. In western Nevada, Greater Lake Tahoe Area and Greater
  Reno-Carson City-Minden Area.

* Through Monday morning.

* Heavy rainfall from a strong atmospheric river will continue
  through tonight. Total rainfall of 1.5 to 3 inches for Western
  Nevada cities, 3-4 inches for foothill areas, and 4-6 inches for
  the Tahoe Basin, Truckee, and Markleeville areas.

* Debris flows, ash flows, rock falls, and tree falls are likely,
  especially on or near burn scars and steep terrain. This includes
  the Caldor, Tamarack, and Numbers Fires. Significant rises on
  rivers, small creeks and streams are expected. Equipment in and
  near river and creek channels should be moved to safety. Rock
  falls in canyons and ponding of water on roads will create
  hazardous driving conditions. This can especially be an issue on
  Interstate 80 between Reno and Truckee.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&

$$



Flash Flood Warning

Flash Flood Warning
CAC017-251000-
/O.NEW.KSTO.FF.W.0002.211024T1447Z-211025T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Sacramento CA
747 AM PDT Sun Oct 24 2021

The National Weather Service in Sacramento has issued a

* Flash Flood Warning for...
  The Caldor burn scar in...
  El Dorado County in northern California...

* Until 300 AM PDT Monday.

* At 747 AM PDT, Doppler radar and automated rain gauges indicated
  heavy rain moving towards the Caldor Burn Scar. Flash flooding is
  expected to begin within the next several hours. Take action now.

Excessive rainfall over the burn scar will result in debris flows.
The debris flow can consist of rock, mud, vegetation and other loose
materials.

  HAZARD...Life threatening flash flooding. Heavy rain producing
           flash flooding in and around the Caldor Burn Scar.

  SOURCE...Radar and automated gauges.

  IMPACT...Life threatening flash flooding of areas in and around
           the Caldor Burn Scar.

* Some locations that will experience flash flooding include...
  Kirkwood, Kit Carson, Grizzly Flat, Twin Bridges and Sierra At
  Tahoe.

This includes the following streams and drainages...
  Tragedy Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a life threatening situation. Heavy rainfall will cause
extensive and severe flash flooding of creeks...streams...and
ditches in the Caldor Burn Scar. Severe debris flows can also be
anticipated across roads. Roads and driveways may be washed away in
places. If you encounter flood waters...climb to safety.

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3881 12003 3877 12008 3872 12007 3872 12005
      3864 12015 3862 12035 3856 12046 3861 12065
      3862 12055 3868 12057 3866 12065 3866 12066
      3875 12050 3877 12029 3885 12018

FLASH FLOOD...RADAR AND GAUGE INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

CM



U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE