NWS Advisory Issued: Cold, Frosty Nights In The Pass Area

SAN GORGONIO PASS AREA, CA — The chilly storm that doused the Pass Area Wednesday is moving out, but the cold is not.

Temperatures are below normal, raising the prospects for overnight frost across the region, according to the National Weather Service.

The agency issued two frost advisories for the area — one in effect from 2 a.m. to 9 a.m. Thursday, and the other from 2 a.m. to 9 a.m. Friday.

"Temperatures as low as 34 will result in frost formation," according to the NWS. "Frost could kill outdoor vegetation if left uncovered."

The NWS issues frost advisories when low temperatures are forecasted to be between 33-36°F. Frosts generally cause minor damage but can harm sensitive species, especially flowers and flower buds that have broken dormancy.

Lows in the Pass Area are predicted to fall into the mid-30s on Wednesday, Thursday and Friday nights. High temps will be in the mid-60s.

Local mountains were experiencing snow, with a Winter Weather Advisory remaining in effect through 8 p.m. Wednesday.

"Snow showers lingering in the mountains could amount ... to two inches," the NWS said. "Accumulations of two to four inches (are likely) above 6,000 feet."

According to meteorologists, a system developing in the Pacific Northwest will usher in another chance of precipitation this weekend in the Pass Area, but forecast models are depicting a weak trough, with little moisture available for significant rain or snowfall.

"Slight warming will be felt across the region through Saturday under tranquil conditions," the NWS stated. "The bigger story with this system will be the much cooler temperatures and strong winds on Sunday. (There is) potential for a strong onshore wind event Sunday morning as the storm system passes by to the north. Temperatures will also fall quickly Sunday night into Monday, leading to the coldest night of the season so far."

Santa Ana winds might develop early next week, heralding another warming trend, forecasters said.