Mammoth Lakes, CA (93546)

12:10 PM PST on February 20, 2017 (GMT -0800)
Bigwood, Mammoth Lakes, CA | | Change Station
Active Advisory: Winter Storm Warning, Areal Flood Watch Active Notice: Areal Flood Watch

Elev 8045 ft 37.64 °N, 118.99 °W | Updated 4 seconds ago

Snow
Snow
32.0 °F
Feels Like 32 °F
N
0.0
Wind Variable Wind from SW
Gusts 0.0 mph

Today
High -- | Low -- °F
--% Chance of Precip.
Yesterday
High -- | Low -- °F
Precip. -- in
Pressure 30.05 in
Visibility 1.8 miles
Clouds Overcast 1500 ft
Windchill 32 °F
Dew Point 4 °F
Humidity 29%
Rainfall 0.00 in
Snow Depth Not available.
6:38 AM 5:40 PM
Waning Crescent, 31% visible
METAR KMMH 201955Z AUTO 09008KT 1 3/4SM -RA OVC015 01/01 A3005 RMK AO2 P0001 T00130011
Pressure 30.05 in
Visibility 1.8 miles
Clouds Overcast 1500 ft
Windchill 32 °F
Dew Point 4 °F
Humidity 29%
Rainfall 0.00 in
Snow Depth Not available.
6:38 AM 5:40 PM
Waning Crescent, 31% visible
METAR KMMH 201955Z AUTO 09008KT 1 3/4SM -RA OVC015 01/01 A3005 RMK AO2 P0001 T00130011

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10-Day Weather Forecast

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Feb. 20, 2017 Rise Set
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Minimum magnitude displayed is 2.5.

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

Watches & Warnings

Winter Storm Warning
Issued: 5:08 AM PST Feb. 20, 2017 – National Weather Service

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

* timing: moderate to heavy snow and rain will continue through
Tuesday with the heaviest snow expected this morning through
early afternoon... and again late tonight.

* Snow accumulations: above 8000 feet... 18 to 36 inches with
locally up to 4 feet along the Sierra crest. Between 7000 and
8000 feet... 8 to 20 inches. Below 7000 feet... up to 8 inches
with less than 4 inches below 6500 feet mainly on Tuesday.

* Winds: south to southwest winds 25 to 35 mph with gusts to 55
mph. Sierra ridge gusts up to 120 mph.

* Snow levels: between 7500 and 8000 feet through tonight,
possibly lowering to near 7000 feet at times during periods of
heavy precipitation. Snow levels will then fall to near 7000
feet by Tuesday morning and near 6500 feet by Tuesday afternoon.

* 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.





508 am PST Mon Feb 20 2017

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

* timing: moderate to heavy snow and rain will continue through
Tuesday with the heaviest snow expected this morning through
early afternoon... and again late tonight.

* Snow accumulations: above 8000 feet... 18 to 36 inches with
locally up to 4 feet along the Sierra crest. Between 7000 and
8000 feet... 8 to 20 inches. Below 7000 feet... up to 8 inches
with less than 4 inches below 6500 feet mainly on Tuesday.

* Winds: south to southwest winds 25 to 35 mph with gusts to 55
mph. Sierra ridge gusts up to 120 mph.

* Snow levels: between 7500 and 8000 feet through tonight,
possibly lowering to near 7000 feet at times during periods of
heavy precipitation. Snow levels will then fall to near 7000
feet by Tuesday morning and near 6500 feet by Tuesday afternoon.

* 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 Watch
Issued: 4:20 AM PST Feb. 20, 2017 – National Weather Service

... Flood Watch remains in effect through Tuesday morning...

The Flood Watch continues for

* a portion of east central California, including the following
area, Mono County.

* Through Tuesday morning

* a strong atmospheric river will bring heavy rain with high snow
levels. Moderate to heavy rain along with snow melt will
contribute to increasing flows on rivers and streams with an
enhanced flood potential through Tuesday.

* The highest risk of flooding is along creeks, streams, and
poor drainage areas. The Walker River will see appreciable
rises, but at this time is expected to remain below flood
stage.

Precautionary/preparedness actions...

Small creeks and streams are the most susceptible to flooding.
Excessive rainfall may also generate rock and mud slides in steep
terrain. Persons living along small creeks and streams should
monitor the latest weather information at weather.Gov/Reno and be
prepared to take action should flooding occur.