Fall season’s first sizable rainstorm to arrive this week


RIVERSIDE (CNS) – The first major rainstorm of the fall season is expected to reach the Inland Empire midweek, producing moderate to heavy precipitation in some areas, including the mountains, where snow is likely, according to the National Weather Service.

Forecasters said the trough of low pressure will roll into Southern California from the north beginning Tuesday night, with the most significant rainfall in the inland region occurring throughout Wednesday and part of Thursday.

“Rainfall totals through Thursday could range from one-half to 1 inch near the coast, to 1.5 to 2 inches in the mountains, with less than one-quarter inch in the deserts,” according to an NWS statement. “The snow level will lower to around 6,000 feet for Wednesday through Thursday, with a few inches of snowfall possible in the mountains of San Bernardino and Riverside counties above 6,000 feet.”

Thunderstorms are also in the forecast, as well as strong westerly winds, mainly on Wednesday, as the instability intensifies from a clash of cold and warm air, meteorologists said.

High temperatures in the Riverside metropolitan area will be in the low 60s Wednesday and Thursday, while in the Coachella Valley, the mercury will hover in the mid-60s, according to the NWS.

The stormy weather will fragment and trail off to the east Thursday night, with mostly sunny skies and seasonal temps going into the weekend, forecasters said.

No flash flood or other severe weather watches have been issued for this meteorological event, as of Monday afternoon.