Category: Forecast

December 17, 2020 A trough of low pressure and its associated cold front are marching down the valley this morning.  doppler radar returns are  not impressive.  In fact, as of the time of this writing, only a few hundredths has been recorded from Fresno County north with just trace amounts further south.  The trough will…

December 16, 2020 Summary: Clouds are beginning to increase ahead of a robust low pressure system.  The parent low is located just off the Washington coast with a strong cold front stretching almost into the subtropics.   The Pacific Northwest and northern California will be the recipients of a short lived atmospheric river of air…

December 16, 2020 There is a good combination of frost and fog out there this morning.  some areas have dense fog while other locations are generally clear.  Most ag stations this morning were reporting temperatures in the upper 20s to the lower 30s with some mid 30s in Kern County.  A temporary ridge of high…

December 15, 2020 Summary: California remains on the eastern flank of weak high pressure off shore with a northwesterly flow aloft.  This flow will continue through Wednesday night.  the fog formed in various areas of the valley this morning and has yet to clear in some areas of northern Kings and Tulare Counties up through…

December 15, 2020 Both infrared satellite imagery and ground observations show widespread fog over much of Tulare County up through Merced County with patchy fog elsewhere.  Forecasting temperatures for day through Wednesday will be challenging because of the potential burn off time of the fog and low clouds at any given location.  Where skies are…

December 14, 2020 Summary: As of 1:30, a solid layer of low clouds was covering the eastern side of Tulare County and over much of Kern County.  The overcast above Kern County was based at 4,300 feet, 1,200 feet over Porterville, and 1,100 feet over Visalia.  The center and west side of the valley are…

December 14, 2020 The low pressure system that brought significant precipitation to the central part of the valley and light amounts in the south valley has now moved into the Great Basin.  It is being followed by the typical upslope clouds against the north facing slopes of the Kern County mountains and the valley facing…

December 12, 2020 Showers have spread as far south as a Monterey/Merced line as of the time of this writing.  The cold front and associated trough of low pressure are now sweeping into northern California and will move through central California this afternoon and tonight.  most of the precipitation will be over by roughly midnight…

December 12, 2020 Summary: There is a combination of plenty of residual cloud cover and upslope clouds in Kern and Tulare Counties to result in a typically cool mid December afternoon.  Temperatures are generally 3 to 5 degrees cooler then 24 hours ago and, as anticipated, dew points are up anywhere from 11 to 13…

December 12, 2020 We received some decent amounts of precipitation north of Kern County overnight.  More than .33 has been measured in parts of Fresno and Madera Counties and as much as .66 up in Merced County.  More below in the rain discussion.   The low pressure system has now moved into the Great Basin. …