Category: Forecast

March 3, 2020 Summary: Temperatures on the valley floor are anywhere from 8 to 12 degrees warmer than 24 hours ago.  In the foothills and mountains, readings are from 12 to 15 degrees higher than yesterday at this time.  All of this is in response to building high pressure which is moving in from the…

March 3, 2020 Summary: Significant warming is taking place, especially above the valley floor.  Both Sandburg and Blue Canyon at elevations of 4,000 to 5,600 feet are 12 degrees warmer than 24 hours ago.  Even on the valley floor, readings are generally 2 to 5 degrees warmer than yesterday at this time.  The freezing level…

March 2, 2020 Summary: Temperatures from Merced north are anywhere from 10 to 15 degrees warmer than 24 hours ago.  A rather robust northeast flow is generating gusty winds down the Sacramento Valley and into northern San Joaquin Valley.  The Sierra Nevada is blocking these off shore winds from penetrating the central and south valley…

March 2, 2020 Summary: The cold upper low has now moved southward and is just west of the northern Baja coastline.  Scattered showers continue over portions of southern California but will slowly diminish as the day progresses.  Upper level high pressure is currently building into the Pacific Northwest and northern California.  The freezing levels are…

March 1, 2020 Summary: The center of circulation of a cold core low is located just off the central coast this afternoon.  It is lagging behind earlier projections by a few hours, but will  move to a position just west of San Diego by sunrise Monday.  The chance for scattered showers and isolated thunderstorms will…

March 1, 2020 Summary: The cold trough of low pressure we’ve been discussing is moving through central California this morning.  a closed low circulation has developed off the central coast, as anticipated.  The air associated with this storm is quite cold.  The latest sounding above Oakland indicated a freezing level at 5,200 feet as the…

February 29, 2020 Summary: The southern fringe of a cold trough of low pressure is now entering the northern ¼ of California.  It will dive over central California late tonight through the late evening hours Sunday.  There will be a chance of showers, mainly near the Sierra Nevada foothills, after about 3:00am or so, with…

Summary: High clouds from a weak upper air disturbance off the southern California coast will begin to be suppressed southeastward in response to a very cold low which is now spreading showers over the Pacific Northwest.  That low will drop into northern California tonight, spreading showers down the range, mainly after midnight, with a slight…

February 28, 2020 Summary: As of 1:00pm, the temperature at Bakersfield, Fresno, and Madera was 80 degrees with all other locations ranging in the mid to upper 70s.  High clouds continue to stream overhead from a benign upper air disturbance.  That system will quickly be dispersed southward as a low now approaching the western Washington…

February 28, 2020 Summary: Temperatures are very mild this morning due to a warm air mass coupled with high clouds overhead from a weak upper low off the southern California coast.  That low will be suppressed southward courtesy of the break down of upper level high pressure over the weekend.  A cold low is currently…