Temecula's Hour-By-Hour Forecast As Winter Storm Slams Southland

TEMECULA, CA— Rain and snow have been falling in the Inland Empire as the first storms of the season linger over Southern California. Showers and thunderstorms have hit Los Angeles, Riverside and Orange counties hard, bringing widespread flooding to the regions.

Temecula is one of many areas under a flash flood watch until 1 a.m. Thursday with heavy rainfall expected to hit on Wednesday. Scattered showers are expected to continue into Thursday.

The National Weather Service issued a winter storm warning that will be in effect from 7 a.m. Wednesday to 7 p.m. Thursday in the Riverside County mountains and the San Bernardino County mountains above 5,000 feet. In the Running Springs area, forecasters say "several inches" of snow has already fallen as of Wednesday morning.

Those mountain areas are expected to get two to four inches of snow by Thursday night, as a cold, low-pressure system moves in from the north and the storm system that brought rain Tuesday moves to the east, according to the NWS.

Here in Temecula, this is what you can expect for the coming hours, according to the National Weather Service:

Wednesday, November 20 at 10am
Temperature: 54 °F
Sky Cover (%): 86%
Precipitation Potential (%): 100%
Relative Humidity (%): 84%
Rain: Occasional (80%-100%)
Thunder: Slight Chance (10%-20%)

Wednesday, November 20 at 12pm
Temperature: 53 °F
Sky Cover (%): 86%
Precipitation Potential (%): 100%
Relative Humidity (%): 79%
Rain: Occasional (80%-100%)
Thunder: Slight Chance (10%-20%)

Wednesday, November 20 at 1pm
Temperature: 54 °F
Sky Cover (%): 82%
Precipitation Potential (%): 100%
Relative Humidity (%): 75%
Rain: Occasional (80%-100%)
Thunder: Slight Chance (10%-20%)

Wednesday, November 20 at 2pm
Temperature: 54 °F
Sky Cover (%): 82%
Precipitation Potential (%): 100%
Relative Humidity (%): 76%
Rain: Occasional (80%-100%)
Thunder: Slight Chance (10%-20%)

Wednesday, November 20 at 4pm
Temperature: 53 °F
Sky Cover (%): 80%
Precipitation Potential (%): 73%
Relative Humidity (%): 82%
Rain: Likely (60%-70%)
Thunder: Slight Chance (10%-20%)

Wednesday, November 20 at 6pm
Temperature: 51 °F
Sky Cover (%): 80%
Precipitation Potential (%): 73%
Relative Humidity (%): 92%
Rain: Likely (60%-70%)
Thunder: Slight Chance (10%-20%)

Wednesday, November 20 at 8pm
Temperature: 50 °F
Sky Cover (%): 80%
Precipitation Potential (%): 73%
Relative Humidity (%): 97%
Rain: Likely (60%-70%)
Thunder: Slight Chance (10%-20%)

Wednesday, November 20 at 10pm
Temperature: 50 °F
Sky Cover (%): 83%
Precipitation Potential (%): 75%
Relative Humidity (%): 97%
Rain: Occasional (80%-100%)
Thunder: <10%

Thursday, November 21 at 12am
Temperature: 49 °F
Sky Cover (%): 83%
Precipitation Potential (%): 75%
Relative Humidity (%): 99%
Rain: Occasional (80%-100%)
Thunder: <10%

Thursday, November 21 at 2am
Temperature: 49 °F
Sky Cover (%): 83%
Precipitation Potential (%): 75%
Relative Humidity (%): 100%
Rain: Occasional (80%-100%)
Thunder: <10%

As of 3 a.m. Wednesday , the storm current systems had dumped 0.86 of an inch in Live Oak Canyon, 0.74 in Vista Grande, 0.63 in Idyllwild, 0.55 in Angeles Hill, 0.51 in Potrero Canyon, 0.48 in Poppet Flats, 0.47 in Beaumont, 0.43 in Keenwild, 0.39 in Cranston, 0.33 in Cabazon and 0.18 near the Riverside March Air Force Base.

Rainfall totals in the Coachella Valley included 0.44 of an inch in Thermal, 0.25 in Indio, 0.16 in Palm Desert and Agave Hill, 0.15 in Cathedral Canyon and Thousand Palms, 0.08 near the Palm Springs Airport and 0.04 in Desert Hot Springs.

Through Thursday night, the Riverside metropolitan area is expected to get another six-tenths of an inch of rain, while an additional 1.8 inches is expected in the mountains, three-quarters of an inch is expected in the San Gorgonio Pass near Banning and around one-tenth of an inch is expected in the Coachella Valley, forecasters said.

The NWS advised anyone traveling in the mountains to be wary of reduced visibility and keep an extra flashlight, food and water in the vehicle in case of an emergency.

Light showers could continue through Friday morning, then dry and sunny conditions are expected this weekend, forecasters said.

— City News Service contributed to this report