Updates
  • Out/pneumonia Pardon the interruption again, folks. John had been coughing more and more frequently lately. Difficult breathing yesterday resulted in an ambulance ride to the local…
  • May 8, 2024 report May 8, 2024 Summary  High pressure aloft is  located 500 miles off the northern California coast. Low pressure is centered over Wyoming and the Dakotas…
  • May 6, 2024 report May 6, 2024 Summary  An elongated trough of low pressure extends from the Gulf of Alaska to the Pacific Northwest while high pressure is setting…
  • May 4, 2024 report May 4, 2024 Summary  A low pressure center is off the coast of the Pacific Northwest this morning. This low will move southwestward into northern…
  • May 2, 2024 report May 2, 2024 Summary  upper level high pressure is upwelling ahead of a low pressure system located in the northeast Pacific. This will drive temperatures…

August 10 2020/report

August 10, 2020 Summary:   More triple digit temps are on the way.  Slight cooling will occur Tuesday through Thursday due to a slight weakening of high pressure aloft.  We will not have any assistance from the marine layer this week.  There’s a minor influx of sea breeze moving into the Delta, however any cooling will…

August 8,2020/report

August 8, 2020 Summary: The summer doldrums have really set in.  there is just not a whole lot to talk about.  A very weak upper low has now drifted to off the California coast while upper level high pressure stretches from Texas to southern California.  The marine which had pooled the valley has mixed out. …

August 7, 2020/report

August 7, 2020 Summary: After a day of sub 90 temperatures, readings will once again start to trend upward as the pool of marine air begins to mix out.  Temperatures at most locations this morning are running about 3 to 5 degrees higher than 24 hours ago.  The marine layer at Monterey has dropped roughly…

August 6, 2020/report

August 6, 2020 Summary:  Temperatures at this hour are running anywhere from 3 to 8 degrees cooler than 24 hours ago.  The valley is completely pooled with modified marine air.  For the second morning in a row, satellite imagery shows coastal low clouds pushing up against the last range of mountains separating the valley from…

8/5/2020/report

August 5, 2020 Summary:  Infrared satellite imagery is quite telling at this hour.  Coastal low clouds have spread inland as far as the last range separating the Coast Range from the valley floor.  Low clouds are also evident moving up the Delta into the lower Sacramento Valley.  The marine layer has deepened to 2,800 feet…

August 4, 2020/report

August 4, 2020 Summary:  The latest sounding at Monterey indicates the marine layer has doubled in depth over the past 24 hours.  It has now risen to 2,000 feet.  Winds at Pacheco Pass have increased to 20 MPH while at Travis Air Force Base, winds are out of the southwest at 21, gusting to 27…

August 3, 2020/report

August 3, 2020 Summary:  With a little luck, this will be the last day of triple digits, especially north of Kern County.  The marine layer is currently quite shallow at 1,000 feet.  That will begin to change by this evening as a weak trough off the northern California coast begins to push inland Tuesday.  This…

August 1, 2020/report

August 1, 2020 Summary:  The strong upper high over Arizona has moved slightly towards the west.  It is now centered over the Colorado River Valley.  Central California will remain over the northwest flank of this high through Monday.  Triple digits will continue to be widespread through Monday while torrid heat continues to bake southern California.…

July 31, 2020/report

July 31, 2020 Summary:  Central California remains on the northwest periphery of a very strong high located over Arizona and southern California.  The freezing level is about as high as I’ve seen it all summer and stands at 17,800 feet above Oakland.  For the second time this summer, hottest locations over the lower deserts of…

July 30, 2020/report

July 30, 2020 Summary:  Central California is on the northwest flank of a strong upper high centered over Arizona and southern California.  Intense heat will continue over the deserts of southern  California with hottest locations teasing with the 120 degree mark Friday and Saturday.   Not quite that hot on the valley floor, but widespread…