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.

39°F

4°C

Humidity	45%
Wind Speed	SE 8 MPH
Barometer	NA
Dewpoint	19°F (-7°C)
Visibility	NA
Wind Chill	33°F (1°C)
Last update	12 Apr 12:04 AM PDT

More Information:

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

Extended Forecast for

16 Miles ESE 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: 23 °F
Snow Showers
Sunday
High: 43 °F
Snow Showers
Likely then
Chance Snow
Showers
Sunday Night
Low: 18 °F
Chance Snow
Showers then
Mostly Clear
Monday
High: 45 °F
Chance Snow
Showers
Monday Night
Low: 21 °F
Mostly Clear
Tuesday
High: 52 °F
Sunny
Tuesday Night
Low: 26 °F
Mostly Clear
Wednesday
High: 56 °F
Sunny

Detailed Forecast

Overnight

Snow showers. Some thunder is also possible. Low around 23. South wind 10 to 15 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 2 inches possible.

Sunday

Snow showers likely before 8am, then a chance of snow showers after 11am. Some thunder is also possible. Mostly cloudy through mid morning, then becoming sunny, with a high near 43. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Sunday Night

A 30 percent chance of snow showers, mainly before 8pm. Mostly clear, with a low around 18. West wind 5 to 10 mph, with gusts as high as 20 mph. Little or no snow accumulation expected.

Monday

A 40 percent chance of snow showers, mainly after 11am. Some thunder is also possible. Mostly sunny, with a high near 45. Calm wind becoming northwest around 5 mph in the afternoon. Little or no snow accumulation expected.

Monday Night

Mostly clear, with a low around 21. Northwest wind around 5 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 52. Calm wind becoming southwest around 5 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 26.

Wednesday

Sunny, with a high near 56.

Wednesday Night

Partly cloudy, with a low around 28.

Thursday

Mostly sunny, with a high near 52.