Category: Forecast

October 14, 2021 California is sandwiched between two major features.  The first is a big  trough of low pressure covering the interior west.  The second is an equally big  high center over the California coast. The jet stream is fixed between these two features, creating a northwest flow aloft over California.  The air above the…

October 13, 2021 Here it is October 13 and 30s are pretty widespread on the valley floor.  As of 6:00am, McFarland had dipped to 31 and Lindsay and Exeter were each at 32.  Yes, it is rare to see frost, even local frost, this early in the season, but it’s not unheard of.  I wish…

October 12, 2021 A very intense low pressure system has now slid eastward and is centered over southwest Utah.  A narrow wedge of upper level high pressure runs from northeast to southwest across California then northeastward into the southern Rockies.  Behind that system is another weaker trough of low pressure which will  clip northern California…

Please accept our apologies.  John’s route to recovery from double pneumonia did not go smoothly.  Additional trips to the ER were required along with stronger antibiotics.  He’s been itching to get back behind his computers, but I made him wait a few extra days, until he could walk around the house outside without assistance.   …

September 22, 2021 When it rains, it pours (or so I’ve heard.)  John became ill early last week.  Long story short, he had a raging case of double pneumonia.  A week’s worth of excellent care by the nursing staff of our local hospital and he was able to come home yesterday afternoon. He’s weak as…

September 13, 2021 A zone of upper level high pressure stretches from the southeastern US to a second high center over northwest Mexico and Arizona.  Pretty much of a zonal flow or west to east flow is in place across the northern tier states.  Central California is pretty much between these two features. This will…

September 11, 2021 Temperatures at this hour are anywhere from 8 to 13 degrees cooler than 24 hours ago.  A push of modified marine air moved down the valley and it will lower temperatures down into the mid 90s the next couple of days.  This is still above average.  The freezing level taken over Oakland…

September 10, 2021 Record heat in some places occurred on the valley floor yesterday. Lemoore soared to 110 with most locations between 105 and 109.  It was an odd day all the way around as a batch of monsoonal moisture became entrained in a trough of low pressure moving through the Pacific Northwest and northern…

September 9, 2021 Today will be a scorcher, however  moderation will begin tomorrow as a weak trough of low pressure begins to shift through the Pacific Northwest and into northern California by Friday evening.   The flow between the southwestern high and the low off the north coast has turned the winds aloft southerly over…

August 27, 2021 The slow warming trend will continue today as high pressure over the Desert Southwest links up with another high off shore.  Already, the marine layer at Monterey has shrunk back to 500 feet.  Winds in the Delta and at Pacheco Pass are light and variable at this hour.  Hottest locations this afternoon…