Category: Forecast

December 4, 2019 Summary: The main frontal band has now moved into the Sierra Nevada and is accelerating towards the east.  The main upper low is now crossing the southern San Joaquin Valley at its time of maximum daytime heating.  With the warmth of what is a weak December sun destabilizing the atmosphere, isolated thunderstorms…

December 4, 2019 Summary: Light rain has spread over the entire valley.  Rainfall amounts thus far have generally been less than .15 at most locations through 6:00am.  The center of low pressure is located just west of Santa Maria this morning. This system has slowed down a bit with the center of circulation moving right…

  December 3, 2019 Summary: Today is turning out to be like a day from December’s of old as widespread ground fog this morning lifted into a low overcast.  As of 1:00pm, Bakersfield and Porterville were reporting a low cloud deck at just 800 feet.  Fresno was overcast at 600 feet, Lemoore 200 feet…well, you…

December 3, 2019 Summary: Toward the center and west side of the valley there is considerable ground fog this morning.  Lemoore, Fresno, Madera, Hanford, and Visalia all are reporting a visibility of ¼ of a mile or less.  Bakersfield and Porterville have reasonably decent visibility as of 6:00am.   The southern half of California is…

December 2, 2019 Summary: Warm subtropical air continues to flood in from the southwest around the eastern side of a low pressure system located roughly 500 miles west of San Francisco.  We’ve seen quite a bit of sunshine this afternoon.  That, combined with downslope heating off the Kern County mountains, has pushed some temperatures into…

December 2, 2019 Summary: Over the past 72 hours, a constant feed of moisture has been training across the eastern Pacific Ocean, running from southwest to northeast and taking dead aim at northern sections of central California.  On the valley floor from Fresno County northward, 1.0 plus totals are common.  Further south in the valley…

December 1, 2019 Summary: A fairly strong area of low pressure is located off the coast of the Pacific Northwest and stretches hundreds of miles off to the southwest over the Pacific Ocean.  Underneath this zone of low pressure is a 140 knot jet stream which is transporting subtropical moisture into northern and central California. …

November 30, 2019 Summary: Already this afternoon, light precipitation has moved into the valley with measurable rain along the west side of Kern and Kings Counties.  As much as a quarter of an inch of rain has been tallied so far along the central California coast from Monterey down into Santa Maria.  The old fashioned…

November 30, 2019 Summary: Clouds are already increasing ahead of the next Pacific storm which will be a blockbuster for the northern half of the state.  Satellite imagery over the eastern Pacific shows a large area of low pressure roughly 500 miles off the northern California coast.  Flanked underneath this low is a swath of…

November 29, 2019 Summary: A 140 knot jet stream running from northwest to southeast is right above central California this afternoon.  It continues to destabilize the atmosphere for numerous showers over the Sierra Nevada with scattered light showers over the Coast Range, as well.  Even a few isolated showers have popped up over the valley…