Category: Forecast

November 4, 2017 Summary: A weak cold front is moving slowly down the valley this morning.  As of the time of this writing, light showers were falling in Fresno County with a few isolated showers in northern Kings County.  To the north and south of that line, things are precipitation free.  The radar returns themselves…

November 3, 2017 Summary: A trough of low pressure and its associated cold front are currently moving slowly southward through northern California.  Doppler radar indicates showers are falling from mainly Sacramento northward, however it is possible light showers could spread as far south as  Fresno County later tonight with a chance of light showers spreading…

November 3, 2017 Summary: A very weak wave of upper level low pressure is currently moving through central California.  Light showers are falling over the Coast Range, but largely dissipating as they move over the west side of the valley.  Doppler Radar indicates much of the precipitation is not reaching the ground, but there have…

November 2, 2017 Summary: A weak upper level  low is several hundred miles off the central coast this afternoon.  The counterclockwise circulation around this feature has the winds aloft out of the southwest which is pushing plenty of cloud cover over central California.  Temperatures so far have been held down, especially north of Kern County,…

November 2, 2017 Summary: Marine air is surging into southern and central California this morning.  In fact, satellite imagery shows the cloud deck from this marine layer has reached 6,000 feet and is spilling over the Kern County mountains.  It’s currently moving up the valley. Many locations at this time have a fairly low overcast…

November 1, 2017 Summary: Weak upper level high pressure is currently just off shore and is ridging inland over California.  As a result, temperatures are 2 to 3 degrees warmer than 24 hours ago.  Looking to our north, the leading edge of a developing low over British Columbia and Washington State is as far south…

November 1, 2017 Summary: Welcome to the official start of the frost season.  An interesting phenomenon is occurring as the marine layer along the southern California coast is deep enough to actually spread over the Tehachapi Mountains then into the southwest portion of Kern County on the valley floor.  The remainder of the area is…

October 31, 2017 Summary: Another fast moving but dry trough of low pressure is dropping southward into northern California this morning and will move through central California later this afternoon and evening.  There may be some cloud cover, but skies overall should be  mostly clear.  This will maintain marginally below average temperatures today but with…

October 30, 2017 Summary: An upper level low is currently moving through southern California with its center currently near San Diego.  A new area of low pressure is developing over the Pacific Northwest and will drop southward into California with no precipitation.  This will happen Tuesday afternoon and night.  This has rapidly deepened the marine…

October 28, 2017 Summary: Strong upper level high pressure is centered right over northern California this morning.  Weak surface high pressure is prevalent over the Great Basin, resulting in a weak off shore flow.  In the meantime, there is a low pressure system off the southern California coast which will move inland to our south…