PASS AREA, CA — The inclement weather stirred by the remnants of Hurricane Rachel throughout the Inland Empire and elsewhere will give way to a dry spell and Santa Ana winds, which are forecast to arrive by the end of the week, according to the National Weather Service.
"High pressure is going to begin to build in over the Great Basin (of Utah and Nevada) as an upper level low becomes stalled over the Four Corners region," the NWS said in a statement Monday. "This will begin to establish Santa Ana conditions."
Meteorologists said heavy clouds and sporadic rain showers will remain over the inland region Monday, while the tail end of the trough associated with the tropical storm that arrived Saturday fully exits to the northeast. Clearing should start by the predawn hours Tuesday, if not earlier, according to the Weather Service.
The agency said that in the 48-hour period from late Saturday morning to late Monday morning, the Riverside metropolitan area received about 1.3 inches of precipitation.
Banning recorded the greatest amount of rain in Riverside County over that period — 4.76 inches, with neighboring Beaumont the runner-up at 3.35 inches, data showed.
Palm Springs International Airport documented a precipitation total of 1.16 inches, while nearby Palm Desert, in the area of rising terrain, indicated about 2 inches of rainfall.
The lowest count countywide was at Corona Municipal Airport, where 0.64 inches filled rain gauges.
The storm's impacts will quickly fade, however, with a return of dry, sunny weather from Wednesday into next week, according to forecasters.
"By Friday, a strong super-gradient jet (stream) ... is going to move in from the north," the NWS stated. "This will help enhance the offshore winds on Friday into Saturday, with some of the coastal and inland basins climbing to afternoon temperatures as much as 15 degrees above average for Friday, and a possible return of moderate heat risk ... Winds will also be rather strong and gusty for some of the higher terrain."
The agency said wind advisories may be issued as early as Wednesday.
Precipitation chances from Tuesday night to early next week are minimal.
High temperatures in the Riverside area Monday and Tuesday will peak just below 70 degrees, with lows around 50 degrees. The warming trend will begin Wednesday, with daytime temps going from the upper 70s to the upper 80s heading into the weekend, and lows in the low 60s.
For the Coachella Valley, temps will top out in the mid 70s Monday and Tuesday, with lows in the upper 50s, while from Wednesday to Sunday, the mercury will settle in the mid to upper 80s, followed by overnight temps in the mid to upper 60s.
In the Temecula Valley, highs and lows Monday and Tuesday will parallel the Riverside area, and Wednesday to Sunday, temps will go from the upper 70s to mid 80s, with nighttime lows generally settling near 60.
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