Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Hazardous Weather Conditions

Winter Storm Warning in effect from April 11, 02:00 PM PDT until April 12, 11:00 PM PDT

Current conditions at

ROCK CREEK (RCEC1)

Lat: 37.55983°NLon: 118.67841°WElev: 7103.0ft.

32°F

0°C

Humidity	98%
Wind Speed	E 3 MPH
Barometer	NA
Dewpoint	32°F (0°C)
Visibility	NA
Last update	12 Apr 04:04 AM PDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

16 Miles SE Mammoth Lakes CA

Winter Storm Warning until April 12, 11:00pm

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning until April 12, 11:00pm
NOW until 11:00pm Sun
Winter Storm Warning
Overnight
Low: 12 °F
Heavy Snow
and Very
Windy
Sunday
High: 33 °F
Heavy Snow
and Windy
then Chance
Snow Showers
and Breezy
Sunday Night
Low: 8 °F
Breezy.
Chance Snow
Showers then
Mostly Clear
Monday
High: 37 °F
Chance Snow
Showers
Monday Night
Low: 13 °F
Partly Cloudy
Tuesday
High: 44 °F
Sunny
Tuesday Night
Low: 18 °F
Mostly Clear
Wednesday
High: 47 °F
Mostly Sunny

Detailed Forecast

Overnight

Snow showers. The snow could be heavy at times. Some thunder is also possible. Low around 12. Very windy, with a southwest wind around 40 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 8 to 12 inches possible.

Sunday

Snow showers, mainly before 8am. The snow could be heavy at times. Some thunder is also possible. High near 33. Windy, with a southwest wind 25 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Sunday Night

A 30 percent chance of snow showers before 11pm. Partly cloudy, with a low around 8. Breezy, with a southwest wind 20 to 25 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 40 mph. New snow accumulation of 1 to 2 inches possible.

Monday

A 50 percent chance of snow showers, mainly after 11am. Some thunder is also possible. Partly sunny, with a high near 37. Southwest wind around 10 mph becoming northwest in the morning. New snow accumulation of less than one inch possible.

Monday Night

Partly cloudy, with a low around 13. West wind 10 to 15 mph.

Tuesday

Sunny, with a high near 44. Southwest wind 5 to 10 mph.

Tuesday Night

Mostly clear, with a low around 18.

Wednesday

Mostly sunny, with a high near 47.

Wednesday Night

Mostly cloudy, with a low around 20. Breezy.

Thursday

Mostly sunny, with a high near 44. Breezy.