Category: Forecast

April 10, 2018 Summary: Upper level high pressure is still over central and southern California even though it is moving eastward.  The freezing level overnight at VAFB was 13,300 feet, indicating plenty of warm air aloft.  To our north, a low pressure system is moving into the Pacific Northwest and will drag a dry cold…

April 9, 2018 Summary: Temperatures this  morning are running anywhere from 5 to 10 degrees higher than 24 hours ago.  High pressure at the upper levels of the atmosphere is moving in from the eastern Pacific ahead of a weak frontal system several hundred miles off shore.  The combination of warming air aloft and a…

April 7, 2018 Summary: Current radar, as of the time of this writing, was showing significant precipitation along the Sierra Nevada with a large rain shadow on the lee side of the Coast Range.  That rain shadow extends into portions of the east valley and has really zapped precipitation amounts throughout the region.  Just to…

April 6, 2018 Summary: The atmospheric river of air we’ve been discussing has arrived over northern California where widespread precipitation is occurring from roughly Monterey and Merced Counties northward.  Precipitation will slowly spread south along the Sierra Nevada today as a 130 knot jet stream moves from west to east across central California, causing big…

  April 5, 2018 Summary: Clouds are already increasing over central California ahead of what will become a possibly historic event for this late in the season.  Currently, a powerful low is located about 700 miles west of the Washington state coast with a huge atmospheric river of air flanked underneath.  This will slam northern…

April 4, 2018 Summary: A considerable amount of high clouds are overrunning a weak ridge of high pressure.  This will continue through Thursday.  The air aloft remains quite warm for this early in the season with the freezing level at 11,500 feet.  Satellite imagery over the Pacific Ocean is quite telling.  An intensifying low pressure…

April 3, 2018 Summary: High pressure, mainly at the upper levels of the atmosphere, is reestablishing itself over the eastern Pacific and the west coast.  Well above average temperatures and generally clear skies will continue through Wednesday night.  Mid and high level clouds will begin to show up Thursday and Thursday night then will rapidly…

  April 2, 2018 Summary: Temperatures marginally came down on Easter Sunday afternoon, but nevertheless, were in the lower 80s at  most locations.  A weak area of low pressure is moving through.  It doesn’t have much form, but it will bump temperatures a bit lower again today and Tuesday.  Upper level high pressure will rebound…

Summary: Upper level high pressure is slowly inching eastward, allowing a weak trough of low pressure off shore to begin to approach the coast.  There is no active weather associated with this feature, but from time to time, we will see some  mid and high level clouds through Sunday night.  Once we progress into next…

March 30, 2018 Summary: As of 1:00pm, temperatures had already eclipsed the 80 degree mark at many areas and are headed towards the mid 80s before the sun sets this evening.  Low to mid 80s will also prevail over Easter weekend even though a benign low will be moving through southern California.  High clouds associated…