Category: Uncategorized

October 31, 2023 Summary  Upper level high pressure remains parked off the southern California coast. Models show the northern portion of the high over the Pacific Northwest  breaking down, allowing a moist Pacific jet stream bringing rain back to Washington and Oregon. Basically, a westerly flow will set up over the eastern Pacific Ocean, steering…

October 30, 2023 Summary  temperatures at this hour are off to a very chilly start. Most locations are well down into the 30s. Reedley came in at 30 and Sanger 32 for the coldest locations  I could find. Afternoons will be beautiful this week with temperatures in the mid to upper 70s; a   ridge of…

October 28, 2023 Summary  a very  large swath of low pressure stretches from Hudson Bay, Canada southwestward to central California. A sharp ridge of upper level high pressure stretches from off shore California to the Gulf of Alaska. This  has generated a northerly flow from western Canada to northern  California. At the surface, high pressure…

October 27, 2023 Summary  For the first time this season, low temperatures are  bottoming out in the upper 30s this morning. As of 5:00am, Fowler had bottomed out to 38 and clovis 39. Several other locations have dipped down into the lower 40s. a northeast to southwest trough of low pressure stretches from central Canada…

October 26, 2023 Summary  currently, a trough of low pressure is moving rapidly through the Great Basin while a ridge of upper level high pressure builds into the Gulf of Alaska. In the meantime, a large low pressure center over Hudson Bay will develop a trough southwestward into California by Friday night. Over the weekend,…

October 25, 2023 Summary  Currently,, a low center is parked over northwest Oregon this morning while a flat zone of high pressure stretches over central and southern California. The low over Oregon will dive into the Great Basin Thursday. A trough of low pressure will develop behind this system from Hudson Bay, Canada southwestward clear…

October 24, 2023 Summary  Low level moisture from scattered showers the past few days and a weak warm air inversion have set the stage for the first patchy fog of the season. At last report, visibility at Visalia was down to three quarters of a mile, one half mile in Lemoore. Most other locations are…

October 23, 2023 Summary  As of the time of this writing, light showers were occurring over mainly Fresno, Tulare and Kern Counties. Merced has recorded .15 and Los Banos .06 with numerous reports of trace amounts. We are currently on the northern rim of a trough of low pressure moving through southern California. We’ll keep…

October 21, 2023 Summary  A low pressure system is approaching the northern California coast and will move southeastward into central California Sunday and Sunday night. For the past few days, models have indicated this system may be strong enough for the likelihood of showers over the southern Sierra Nevada and a minimal chance over the…

October 20, 2023 Summary  Upper level high pressure has shifted eastward over the Great Basin this morning. Even so, the back side of the high will be overhead today for one more day of hot weather before a major pattern change begins Saturday. Already this morning, the marine layer has deepened to 1,500 feet, roughly…