Truckee, CA

4:41 AM PST on February 21, 2017 (GMT -0800)
Sierra Meadows | | Change Station

Elev 5978 ft 39.32 °N, 120.17 °W | Updated 8 seconds ago

Light Snow
Light Snow
32.4 °F
Feels Like 32 °F
N
0.0
Wind Variable Wind from NNE

Today
High -- | Low -- °F
--% Chance of Precip.
Yesterday
High -- | Low -- °F
Precip. -- in
Pressure 29.98 in
Visibility 1.8 miles
Clouds Overcast 700 ft
Windchill 32 °F
Dew Point 31 °F
Humidity 95%
Rainfall 0.38 in
Snow Depth Not available.
6:44 AM 5:44 PM
Waning Crescent, 25% visible
METAR KTRK 211235Z AUTO 20008G24KT 150V220 1 3/4SM -SN OVC007 00/00 A2998 RMK AO2 P0003
Pressure 29.98 in
Visibility 1.8 miles
Clouds Overcast 700 ft
Windchill 32 °F
Dew Point 31 °F
Humidity 95%
Rainfall 0.38 in
Snow Depth Not available.
6:44 AM 5:44 PM
Waning Crescent, 25% visible
METAR KTRK 211235Z AUTO 20008G24KT 150V220 1 3/4SM -SN OVC007 00/00 A2998 RMK AO2 P0003

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What may become known as the President’s Day Storm of 2017 barreled into the San Francisco Bay area on Monday morning. Heavy rains and localized flooding may develop across the region. High winds later Monday could bring down trees and cause widespread, prolonged power outages from the Bay Area toward Sacramento.

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Station Location Temp. Windchill Dew Point Humidity Wind Precip. Elev Updated Type
                   

Watches & Warnings

Winter Storm Warning
Issued: 3:28 PM PST Feb. 20, 2017 – National Weather Service

... Winter Storm Warning remains in effect until 4 PM PST
Tuesday...

* timing: moderate to heavy snow will continue through Tuesday
with the heaviest snow expected this evening. Snow will mix with
rain at times below 7000 feet through this evening.

* Additional snow accumulations: above 7000 feet... 18 to 36
inches. Between 6500 and 7000 feet... 8 to 16 inches. Heaviest
snow will be along and west of Highway 89. Below 6500 feet... 3
to 12 inches mainly after midnight tonight.

* Winds: south to southwest winds 20 to 35 mph with gusts to 55
mph. Sierra ridge gusts over 100 mph, with peak gusts over 150
mph tonight.

* Wave heights on lake tahoe: 2 to 5 feet with highest waves
expected tonight from mid lake to the north and east shores.

* Snow levels: near 6500 feet this evening falling to the valley
floors early Tuesday morning. Snow levels may briefly rise to
near 7000 feet this evening.

* Impacts: heavy snow will create dangerous conditions, with
travel being severely impacted over the Sierra passes.
Snowfall rates will exceed 2 inches per hour at times,
producing whiteout conditions over the passes and in the
backcountry.

Precautionary/preparedness actions...

Avoid travel today through Tuesday, 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.





328 PM PST Mon Feb 20 2017

... Winter Storm Warning remains in effect until 4 PM PST
Tuesday...

* timing: moderate to heavy snow will continue through Tuesday
with the heaviest snow expected this evening. Snow will mix with
rain at times below 7000 feet through this evening.

* Additional snow accumulations: above 7000 feet... 18 to 36
inches. Between 6500 and 7000 feet... 8 to 16 inches. Heaviest
snow will be along and west of Highway 89. Below 6500 feet... 3
to 12 inches mainly after midnight tonight.

* Winds: south to southwest winds 20 to 35 mph with gusts to 55
mph. Sierra ridge gusts over 100 mph, with peak gusts over 150
mph tonight.

* Wave heights on lake tahoe: 2 to 5 feet with highest waves
expected tonight from mid lake to the north and east shores.

* Snow levels: near 6500 feet this evening falling to the valley
floors early Tuesday morning. Snow levels may briefly rise to
near 7000 feet this evening.

* Impacts: heavy snow will create dangerous conditions, with
travel being severely impacted over the Sierra passes.
Snowfall rates will exceed 2 inches per hour at times,
producing whiteout conditions over the passes and in the
backcountry.

Precautionary/preparedness actions...

Avoid travel today through Tuesday, 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.





Areal Flood Warning
Issued: 4:33 AM PST Feb. 21, 2017 – National Weather Service

... A Flood Warning for urban areas and small streams for rain and
snowmelt remains in effect until 1130 am PST Tuesday for Plumas...
alpine... Sierra... southeastern Lassen... Storey... southern Washoe...
Douglas... and northern Lyon counties and Carson City...

At 427 am PST, the heavy rain has ended, but many small streams
continue to see high flows and are out of their banks. Also,
flooding of low lying and poor drainage areas should continue
through the morning. Showers will persist today and snow levels will
begin to fall. The falling snow levels and lack of widespread
moderate or greater rain will allow many areas with minor flooding
to see their flood waters slowly drain through the morning.

Some locations that will experience flooding include...
Reno, Carson City, Minden, Gardnerville, Virginia City, Dayton, the
Sierra Valley, and Washoe Valley

Lat... Lon 4017 11971 3982 11939 3910 11937 3857 11935
      3887 11982 3928 11982 3953 11993 3960 12000
      3972 12014 3971 12046 3990 12047 4010 12021



321 am PST Tue Feb 21 2017

The Flood Warning continues for
the Cosumnes river at Michigan Bar.
* At 2:30 am Tuesday the stage was 11.8 feet.
* Minor flooding is forecast.
* Expected to rise above flood stage of 12.0 ft early this morning
then forecast to rise to near 14.0 ft this morning then forecast
to fall below flood stage of 12.0 ft near this noon then forecast
to recede to near 9.5 ft early tomorrow morning.
* Flood stage 12.0 ft
* monitor stage 7.0 ft
* impact... near 13.2 feet, water floods houses in Wilton. The South
Bank levee near Wilton is overtopped.
* Impact... near 12.0 feet, water flows on to the Road near Wilton.
* Impact... near 8.0 feet, low lying lands along the river begin to
flood.


&&

Lat... Lon 3848 12133 3859 12103 3842 12092 3836 12124





112 am PST Tue Feb 21 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 has experienced significant rainfall
and widespread flooding problems from prolonged rainfall. The entire
region has saturated soils resulting in widespread areas of standing
water, high stream flows and many flooded areas.

Continued runoff and high stream flows will stress levees leading to
bank erosion, boils and breaches.

Flooding has occurred in locations that have not experienced
flooding in many years.

Residents in interior northern California should be prepared for
flooding. Be prepared to evacuate if flooding should affect your
area. Gather a "go bag" with important items like medications and
hard to replace documents. Don't Forget to plan for your pets and
animals.

Precautionary/preparedness actions...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

A Flood Warning means that flooding is imminent or occurring. All
interested parties should take necessary precautions immediately.


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


Jhm


Hydrologic Statement, Avalanche Warning
Issued: 3:40 AM PST Feb. 21, 2017 – National Weather Service

Forecast information for
Bear River above Wheatland.
* At 2:45 am Tuesday the stage was 16.9 feet.
* Forecast to rise to near 18.0 ft this morning then forecast to
fluctuate near 18.0 ft thru this morning then forecast to fall
below monitor stage of 16.0 ft this evening then forecast to recede
to near 13.0 ft early tomorrow morning.
* Flood stage 24.0 ft
* monitor stage 16.0 ft
* impact... near 13.6 feet, Orchards within the levee downstream near
Pleasant Grove Road begin to flood.

&&

Lat... Lon 3899 12158 3903 12142 3897 12133 3882 12161





718 am PST Mon Feb 20 2017

The following message is transmitted at the request of the Forest
service Sierra avalanche center.

... An avalanche warning is in effect through Tuesday morning...

The Forest service Sierra avalanche center has issued a
backcountry avalanche warning.

* Timing... in effect from 7 am Monday morning through 7 am Tuesday
morning.

* Affected area... for the Sierra Nevada mountains of California
and Nevada, from Yuba Pass to Ebbetts Pass, including the Lake
Tahoe basin.

* Avalanche danger... high avalanche danger will exist at all
elevations.

* Reason/impacts... a strong atmospheric river storm is impacting
the area. Wind slab, storm slab, and loose wet avalanche
problems will be very likely at all elevations. Natural and
human triggered avalanches are expected.

Precautionary/preparedness actions...

Avalanches may run long distances, into flat areas, and can run
into mature forests.

Travel in avalanche terrain is not recommended.

Consult www.Sierraavalanchecenter.Org or www.Avalanche.Org for
more detailed information.

Similar avalanche danger may exist at locations outside the
coverage area of this or any avalanche center.


718 am PST Mon Feb 20 2017

The following message is transmitted at the request of the Forest
service Sierra avalanche center.

... An avalanche warning is in effect through Tuesday morning...

The Forest service Sierra avalanche center has issued a
backcountry avalanche warning.

* Timing... in effect from 7 am Monday morning through 7 am Tuesday
morning.

* Affected area... for the Sierra Nevada mountains of California
and Nevada, from Yuba Pass to Ebbetts Pass, including the Lake
Tahoe basin.

* Avalanche danger... high avalanche danger will exist at all
elevations.

* Reason/impacts... a strong atmospheric river storm is impacting
the area. Wind slab, storm slab, and loose wet avalanche
problems will be very likely at all elevations. Natural and
human triggered avalanches are expected.

Precautionary/preparedness actions...

Avalanches may run long distances, into flat areas, and can run
into mature forests.

Travel in avalanche terrain is not recommended.

Consult www.Sierraavalanchecenter.Org or www.Avalanche.Org for
more detailed information.

Similar avalanche danger may exist at locations outside the
coverage area of this or any avalanche center.