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…

April 5, 2022/report

April 5, 2022 A zone of upper level high pressure stretches from the eastern Pacific eastward across California. We are flanked on the eastern rim of the high, putting us under a northwest  flow aloft. Strong, gusty winds are occurring over favored locations in the Tehachapi Mountains and especially over the Mojave Desert. This is…

April 4, 2022/report

April 4, 2022 California is flanked on the far eastern side of upper level high pressure off shore. The freezing level this morning stands at 10,400 feet and will slowly rise this week as the off shore  high builds into the western US. By Wednesday and Thursday, a big ridge will build northward into the…

April 2, 2022/report

April 2, 2022 Temperatures are 1 to 3 degrees warmer than 24 hours ago. Above the valley floor, Sandberg at 4,100 feet is 6 degrees warmer while the freezing level this morning over Oakland, according to the latest balloon sounding, is at 11,400 feet. A temporary warming trend is underway. Most locations both today and…

April 1, 2022/report

April 1, 2022 The upper atmosphere is warming as a ridge of upper level high pressure builds in from the eastern Pacific. By Tuesday afternoon, many locations will be pushing into the low 80s. a weak trough of low pressure will move through the Pacific Northwest Tuesday, lowering pressures enough for a minor cooling trend.…

March 31, 2022/report

March 31, 2022 Mid and high level clouds associated with a weak trough of low pressure will move through today. Currently, clouds are based between 11,000 and 20,000 feet which will dim the sunshine from time to time, but otherwise will have little effect. High pressure off shore will push inland tonight and Friday, pushing…

March 30, 2022/report

With the spring season starting so quietly, we’re going to cheat a bit and start one a day forecasts today, two days early. As always, updates will be issued if appropriate and please don’t hesitate to call or email if you have questions.     March 30, 2022 Upslope clouds continue to regenerate against the…

March 29, 2022/report

March 29, 2022 Yesterday’s soaker resulted in significant amounts of precipitation throughout the valley, ranging from roughly .33 with isolated locations picking up more than an inch. The center of circulation this morning is over western Arizona and is accelerating eastward. The northwesterly flow behind the low is generating the usual upslope clouds against the…

March 28, 2022/afternoon report

March 28, 2022 A relatively strong cold front moved through central California this morning, dumping anywhere from .25 to .66 on the valley floor. From this point on, the precipitation pattern will become spotty. As breaks begin to show up in the overcast this afternoon, the sun will heat the ground. This creates warm currents…

March 28, 2022/report

March 28, 2022 An area of rain roughly 75 miles wide is moving through the valley at this hour. This area of precipitation is running from south to  north along the cold front well ahead of the parent low which is still off shore. There will be somewhat of a lull during the late morning…

March 27, 2022/afternoon report

March 27, 2022 Doppler radar out of Monterey is showing the first bands of precipitation around 75 miles off shore. Satellite imagery shows the cold front from this system well out ahead of the parent low which is about 600 miles west of the central coast. Rain will spread on shore this evening then will…