Category: Forecast

December 28, 2020 Summary: A line of showers is rotating around the low pressure system now moving into southern California.  As the low continues to pull away, the showers will end.  The temperature up at Sandburg is 34 degrees with snow falling just above the ridge route.  Periods of snow may very well affect the…

December 28, 2020 The center of circulation of a cold core low pressure system is near Santa Maria this  morning.  it continues to pinwheel bands of showers inland, mainly over the southern half of the San Joaquin Valley.  The freezing level, according to the balloon sounding over Oakland, dropped to 4,700 feet, down from nearly…

December 27, 2020 A cold winter storm has dropped south/southeast from the Gulf of Alaska to a position off the coast of Oregon and northern California.  This system will continue to track south/southeast, centering near Monterey by midnight tonight.  rain will pinwheel around the low and into central California from time to time tonight and…

We will be out of the office this afternoon to spend a belated Christmas with our family.  Reports will resume December 27.  Thank  you!   December 26, 2020 Temperatures this morning are running anywhere from 12 to 20 degrees warmer than 24 hours ago.  A much warmer air mass  moved in ahead of today’s weak…

  December 25, 2020 It is a cold, frosty, Christmas morning our there with widespread upper 20s and low 30s.  after that weak upper low moved through southern California overnight, skies cleared, allowing for decent radiational cooling.  Clouds will increase today ahead of a trough of low pressure which will move through northern and central…

Summary: A weak upper low is now moving into southern California.  Light showers are showing up on Doppler radar from the Kern County mountains south.  As the low moves inland, surface pressure differences will relax this evening, ending the strong Santa Ana wind event over the Kern County mountains and locally onto the valley floor…

Strong surface high pressure over the Great Basin combined with a weak low pressure system off th e southern California coast is generating strong Santa Ana winds over the Kern County mountains.  Winds are gusting to 55 MPH at the top of Grapevine Peak, which is near 4,000 feet.  These winds have managed to move…

Summary: A strong surface high has now set up shop over the Great Basin with the center of circulation in southern Idaho and northeast Nevada.  With a weak upper low off the southern California coast, a strong off shore flow is underway.  Winds at Sandburg at the 4,100 foot elevation are out of the northeast…

The last 24 hours was a good illustration of the insulation power of the fog and low overcast.  North of Kern County yesterday, temperatures were only in the mid to upper 40s.  Lows this morning in that region are in the low to mid 40s.  the fog is finally off the deck with visibilities generally…

Summary: North of Kern County is like an icebox this afternoon by valley standards.  As of 1:00pm, Visalia was reporting 39 degrees, Madera 41, Fresno and Lemoore 43, Porterville 47, with Bakersfield having hazy sunshine and a high of 54.   Skies had cleared at Porterville with a visibility of 3 miles.  Visalia, Lemoore, and Fresno…