Category: Forecast

June 3, 2019 Summary: Finally, after a very unusual May and early June, the weather pattern will resemble something more typical.  The upper low which resulted in widely scattered thunderstorms over the valley floor yesterday has weakened further and is moving on its way southward into southern California.  Yesterday evening, Coalinga recorded 1.23 inches of…

June 1, 2019 Summary: The center of circulation of a weak upper low is essentially right overhead this morning.  Yesterday, heavy thunderstorms broke out over the Sierra Nevada with a few heavy cells over the Coast Range from the Carrizo Plain northward.  A repeat performance is due later this afternoon and evening as the intense…

May 31, 2019 Summary: The center of circulation of a weak upper low appears to be near Merced County this morning.  Cloud cover over northern California is running from east to west while from Fresno County south, what little cloud cover there is is running from west to east.  The low is projected to move…

May 30, 2019 Summary: Temperatures yesterday finally struggled up into the mid 80s at most locations.  This is still 1 to 3 degrees below average for the date.  The main feature we’re looking at this morning is a weak upper low located over southwest Oregon.  It will drop southward to near the Bay Area by…

May 29, 2019 Summary: Temperatures will actually surpass the 80 degree mark this afternoon with warmer locations zooming into the mid 80s.  this is still marginally below seasonal averages.  Even so, a weak trough of low pressure continues to cover the western states as the eastern Pacific zone of high pressure will remain far enough…

May 28, 2019 Summary: The low pressure system which brought the highly unusual period of cold weather, thunderstorms, and showers to the valley is now centered over Utah and Colorado.  The valley is sandwiched between high pressure over the eastern Pacific and that low to our east.  This has created a north/northwest flow aloft.  Upsloping…

May 26, 2019 Summary: Showers are widespread over northern and central California at this hour, mainly north of Kern County.  The center of circulation of the latest cold core low appears to be over the lower Sacramento Valley.  The center of this storm will be right overhead by mid to late afternoon which will favor…

May 25, 2019 Summary: Even though it is a tranquil morning in central California with generally clear skies, ominous changes are taking place to our north.  This new complex of actually two low pressure systems will begin to affect central California this afternoon as showers and thunderstorms spread down the Sierra Nevada and possibly out…

May 24, 2019 Summary: Plenty of residual upslope type clouds are crammed into the south valley this morning.  The sounding above Bakersfield and Porterville indicated the base of the overcast is at 4,100 feet.  In the central valley, partly cloudy conditions prevail.  Even despite the clouds, we will have a rare dry day and night…

May 23, 2019 Summary: A cold area of low pressure is now centered over southeast California.  It is a broad low and encompasses most of the western United States.  The counterclockwise circulation around this system has the winds aloft above central California out of the north/northwest.  Embedded within this flow are weak disturbances, one of…