RIVERSIDE (CNS) – A powerful winter storm was making its way toward Riverside County Thursday, with low-elevation snow, widespread rain showers and cold temperatures expected to impact the area beginning Friday and into the weekend.
Scattered showers fell across parts of the region Wednesday, with that rain expected to become more widespread by Thursday morning.
“The cold nature of this system is expected to bring snow to elevations as low as 2,000 feet,” according to the National Weather Service. “Up to 2 inches of snow may accumulate in portions of the Inland Empire and eastern San Diego County. Snow is expected to accumulate in portions of the High Desert as well. Snow is expected there by Thursday afternoon, with up to 4 inches expected. Snow levels will rise to 3,000 to 3,500 feet through the day Thursday, with snow levels closer to 4,000 feet expected by Friday morning.”
Record low maximum temperatures for the day were recorded in parts of Riverside County on Wednesday. It was 51 in San Jacinto, breaking the previous record of 54 set in 2004. It was 29 in Idyllwild, breaking the previous record of 34 set in 2022.
Another round of wet weather will slide into the area Friday and Saturday, bringing more widespread and heavier precipitation, forecasters said. The precipitation will be accompanied by strong south winds Friday and Friday night.
Forecasters also warned of heavy snow and gusting winds that will “create dangerous conditions in the mountains.”
“Snowfall is expected on all of the mountain ranges with the highest accumulations expected in the San Bernardino and portions of the Riverside County mountains,” according to the NWS. “Top forecast snowfall totals of 4 to up to 7 feet are expected in the mountains. For the San Bernardino and Riverside County mountains for Friday into Saturday, the combination of very heavy snow, low visibilities from snow, blowing snow, and fog, and strong gusty south winds will create blizzard conditions at times.”
A winter storm warning will be in effect until 3 p.m. Saturday in the Riverside County mountains, with forecasters anticipating 1 to 3 feet above 6,000 feet and 3 to 4 feet of snow on higher peaks. At least 4 inches of snow are anticipated in most other mountain areas, forecasters said.
A flood watch will be in effect from Friday afternoon through Saturday evening in the Riverside County valleys and mountains, along with the San Gorgonio Pass near Banning. Forecasters warned of possibly excessive runoff that could result in flooded rivers, creeks, streams and other low-lying areas.
According to the NWS, rain could fall at a rate of a half-inch to 0.6 inches per hour, with the highest rates expected on the southwest facing mountain slopes.
Daytime temperatures in Riverside County valleys are expected in the 40s and 50s, but dipping into the 30s at night. Mountain areas could see temperatures in the low 20s at night, possibly falling into the teens on Friday and Saturday nights.
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