Author: Trudy Hibler

May 23, 2022 Almost every year, our first triple digit temperatures arrive in mid to late May and this year will be no exception. Temperatures during this short lived heat wave will peak Wednesday when readings will range between 100 and 105 for the first time this year. This morning, readings are only 2 to…

May 21, 2022 Temperatures yesterday afternoon showed significant cooling as readings dropped into the lower 80s. If you recall, there was nearly a 15 millibar difference in pressure between San Francisco and Las Vegas. As of the time of this writing, the pressure difference has totally vanished with only a 1 millibar difference showing up.…

May 20, 2022 A strong trough of low pressure has carved itself out over the northern Rockies southward into the Great Basin while a surface low is centered over southern Nevada. In the meantime, upper level high pressure is building off shore, creating a strong difference in pressure between off shore northern California and the…

May 19, 2022 Upper level high pressure continues to push eastward over California from its off shore center. The latest balloon sounding this morning over Oakland indicates a freezing level now up to a summer type reading of 15,100 feet. The descending motion of the atmosphere underneath the high has crushed the marine layer. Winds…

May 18, 2022 Since there is no active weather, it’s just a matter of temperature forecasting. In the short term, readings will warm considerably today then will tack on a few more degrees Thursday. Upper level high pressure over the eastern Pacific extends inland over California. The balloon sounding over Vandenberg AFB a few hours…

May 17, 2022 At the upper levels of the atmosphere, a zone of flat high pressure covers the eastern Pacific Ocean and California. There is a weak ripple of low pressure moving through the high which should maintain temperatures in the mid to upper 80s today. Modified marine air is pushing through Pacheco Pass as…

May 16, 2022 A weak trough of low pressure extends from the Pacific Northwest to central California. The portion of the trough this far south is inactive, but it has deepened the marine layer enough to allow for modified marine air to move down the valley. Winds in the Delta at Travis AFB are currently…

May 14, 2022 Temperature at this hour are uniformly around 10 degrees warmer than 24 hours ago. Readings over the mountains are also substantially higher than yesterday at this time. The freezing level has jumped all the way up to 12,900 feet. Upper level high pressure this morning is centered southern Baja and a ridge…

May 13, 2022 John’s feeling a bit under the weather this morning and needs to take a sick day. We’re off to Urgent Care as soon as it opens.  We’ll keep you updated. Trudy

May 12, 2022 Temperatures at this hour are running 4 to 6 degrees above yesterday at this time. Warming is even more significant over the higher elevations. Sandberg at an elevation of 4,100 feet is 8 degrees warmer and Blue Canyon at 5,600 feet is up by 7. The balloon sounding at Oakland reported a…