Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Hazardous Weather Conditions

Winter Weather Advisory in effect from December 24, 05:00 AM MST until December 25, 11:00 PM MST

Current conditions at

St George Regional Airport (KSGU)

Lat: 37.0451°NLon: 113.50561°WElev: 2872.0ft.

Mostly Cloudy

55°F

13°C

Humidity	58%
Wind Speed	E 4 MPH
Barometer	30.13 in (1020.32 mb)
Dewpoint	41°F (5°C)
Visibility	10.00 mi
Last update	24 Dec 02:05 AM MST

More Information:

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

Extended Forecast for

10 Miles SW Santa Clara UT

Winter Weather Advisory December 24, 05:00am until December 25, 11:00pm

Click here for hazard details and duration

Winter Weather Advisory

Overnight
Low: 47 °F
Chance Rain
Wednesday
High: 60 °F
Rain
Wednesday Night
Low: 47 °F
Showers
Christmas Day
High: 53 °F
Showers then
Chance Rain
Thursday Night
Low: 43 °F
Chance
Showers
Friday
High: 49 °F
Chance Rain
Friday Night
Low: 38 °F
Showers
Likely
Saturday
High: 45 °F
Chance Rain
Saturday Night
Low: 33 °F
Slight Chance
Rain/Snow
then Mostly
Clear

Detailed Forecast

Overnight

A 50 percent chance of rain. Mostly cloudy, with a low around 47. East southeast wind around 8 mph.

Wednesday

Rain. High near 60. North northeast wind 9 to 14 mph becoming south in the morning. Chance of precipitation is 80%.

Wednesday Night

Rain, mainly before 2am, then showers likely and possibly a thunderstorm after 2am. Low around 47. Southwest wind 11 to 14 mph. Chance of precipitation is 100%.

Christmas Day

Showers and possibly a thunderstorm before 11am, then a chance of rain after 11am. High near 53. South southwest wind 9 to 16 mph. Chance of precipitation is 80%.

Thursday Night

A chance of rain before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 43. South wind 9 to 14 mph. Chance of precipitation is 30%.

Friday

A 40 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 49.

Friday Night

Showers likely and possibly a thunderstorm before 11pm, then rain likely after 11pm. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.

Saturday

A chance of rain. Partly sunny, with a high near 45.

Saturday Night

A slight chance of rain, mixing with snow after 8pm, then gradually ending. Partly cloudy, with a low around 33.

Sunday

Sunny, with a high near 46.

Sunday Night

Mostly clear, with a low around 33.

Monday

Sunny, with a high near 48.

Monday Night

Partly cloudy, with a low around 36.