Category: Forecast

  February 1, 2022 Upslope clouds are rapidly developing in the southern and eastern sectors of the valley this morning. The base of the overcast at Visalia was 4,700 feet. The freezing level over Vandenberg was 9,100 feet while above Oakland the freezing level was 6,600 feet. Each of these locations  had freezing levels above…

January 31, 2022 Variable amounts of mid and high level clouds continue to stream over central California. The latest observation above Fresno pegs the base of the overcast at 20,000 feet. Even with the cloud cover, temperatures at midday are moving into the upper 50s and will top out in the low to mid 60s…

January 31, 2022 The reporting stations this morning indicate visibilities of between 5 and 10 miles. A weak  upper air disturbance off shore is pivoting some high clouds over central California, but no precipitation is expected. To our  north, a trough of low pressure is digging southward through the Pacific Northwest and northern Rockies. The…

January 30, 2022 The upper low and its cloud cover has moved eastward into southern Arizona this morning, leaving clear skies in its wake. Low to mid 30s are again widespread with isolated low pockets in the upper 20s. Upper level high pressure has ow replaced the low and this will result in a very…

January 29, 2022 Temperatures at midday are running anywhere from 6 to 10 degrees cooler than 24 hours ago. Dew points have jumped up as marine air spilled into the valley overnight. A cut off low west of San Diego will move inland along the California/Mexico border tonight and will be centered somewhere near Tucson…

January 29, 2022 Temperatures are a tad milder this morning due to variable amounts of mid and high level clouds which have spread over central California from a weak cut off low off the southern California coast. The surface flow is still decidedly off shore, however the pressure gradient is not as strong today so…

January 28, 2022 In this morning’s report, we mentioned how unusually strong a surface high is over the Great Basin. It was no surprise to me to see strong winds develop over the Kern County mountains. On occasion, these Santa Ana type winds can spill down the Tehachapi Mountains and on to the valley floor,…

January 28, 2022 Strong high pressure both at the surface and aloft is now centered over the Great Basin. The surface high is unusually strong with a current altimeter reading of 30.90 at Boise, Idaho. Only rarely does the altimeter hit 31 inches of mercury. The high is shifting slowly eastward, allowing a low pressure…

January 27, 2022 Another day of wall to wall sunshine. Visibilities this afternoon aren’t too bad with most reporting stations at between 5 to 10 miles. Temperatures were pushing into the 60s as of 1:00pm with most locations topping out in the upper 60s this afternoon.. expect the same Friday afternoon. Upper level high pressure…

January 27, 2022 Visibilities this morning are running anywhere from 5 to 10 miles at most locations with just patchy fog here and there. Upper level high pressure is beginning to shift further east over California. With marginally higher pressure aloft, temperatures will respond accordingly, rising into the mid to upper 60s. changes are subtly…