Category: Forecast

` April 30, 2018 Summary:  A considerable amount of cloud cover is evident over much of the valley this morning with most locations reporting an overcast based at 6,500 feet.  A strong northwest flow is wrapping around a big low pressure system which is moving from southeast Oregon into the Great Basin by this afternoon. …

April 29, 2018 Summary:  Low pressure is now centered over central Oregon with a trough extending southward into northern and central California.  Even though this system is large in scope, it is moisture starved so any shower activity will be confined to the mountains of northern California.  From Monday through Tuesday, this storm will move…

April 28, 2018 Summary:  Skies are generally clear over central California with the exception of the Tehachapi Mountains where upslope clouds are forming due to a strong northwesterly push of air being lifted by the slopes.  Even on the valley floor, it’s somewhat breezy along the west side and even towards the center of the…

April 27, 2018 Summary:  A full blown invasion of marine air into the valley is underway.  The inland push of the sea breeze has formed a bank of low level clouds over the west facing slopes of the Sierra Nevada from Tulare county northward.  Temperatures have also lowered a great deal compared to what they…

April 26, 2018 Summary: Some marine air is beginning to penetrate through the Delta as winds at Traverse Air Force Base are now out of the southwest at 23 MPH, gusting to 28.  So far, there is little evidence of these breezes making it over the Coast Range and into the west side of the…

April 25, 2018 Summary: Temperatures again this afternoon will eclipse the 90 degree mark.  There are inklings of change out there, however, as the marine layer has deepened to 2,200 feet and some of that sea breeze is beginning to move through the Delta.  Winds at Traverse Air Force Base, at last report, were gusting…

April 24, 2018 Summary: Low to mid 90s were widespread throughout the valley yesterday afternoon and I do look for a repeat performance today.  Strong upper level high pressure covers most of the western United States and just off shore.  This has resulted in a freezing level up to 12,500 feet with a fairly shallow…

April 23, 2018 Summary: On this date back in 1910 the temperature soared to an even 100 degrees at both Fresno and Bakersfield, marking the earliest triple digit reading ever recorded at those locations.  It will not reach the century mark in the valley over the next couple of days, however mid 90s are likely…

April 21, 2018 Summary: Strong high pressure at the upper levels of the atmosphere now covers the eastern Pacific Ocean and much of the western U.S.  Thirty six  hours ago, the freezing level above us was around 6,700 feet while the reading taking overnight now calculates the freezing level at 13,500 feet.  That’s quite a…

April 20, 2018 Summary: Today will begin a prolonged period of dry and much warmer weather.  Freezing levels, even though they are still relatively low, will rapidly rise over the next 72 hours as warmer air begins to move in aloft associated with the building high pressure.  The current freezing level taken last night was…