October 26, 2018 Summary: The temperature at Sandberg as of 6:00am was 66 degrees at an elevation of 4,100 feet. The freezing level has jumped up to 14,600 feet over Oakland, indicating a bubble of warm air is moving in aloft. On the valley floor this morning, temperatures are generally 2 to 6 degrees warmer…
Category: Forecast
October 25, 2018/report
October 25, 2018 Summary: A weak area of upper level low pressure which has been over the Desert Southwest the past few days is now moving eastward. This is allowing upper level high pressure located over the eastern Pacific to begin to slowly move on shore for the beginning of a warming trend. Models show…
October 24, 2018/report
October 24, 2018 Summary: Temperatures this afternoon will end up a degree or two lower than yesterday with similar conditions Thursday. Upper level high pressure is off the Pacific coast while a weak disturbance moves through northern Baja and southern California. This will lower pressures aloft slightly during the next 48 hours, bringing readings down…
Late Wednesday Report
October 23, 2018 Due to an early morning medical appointment, the Wednesday report will be issued in the afternoon rather than the morning. John
October 23, 2018/report
October 23, 2018 Summary: Low pressure is centered over Utah this morning. That, combined with upper level high pressure off shore, has turned surface winds on shore. The marine layer at Monterey this morning has suddenly deepened to 2,800 feet. The onshore flow, however, is weak so the amount of modified sea breeze moving into…
October 22, 2018/report
October 22, 2018 Summary: The low which was just off shore yesterday is moving north/northeast this morning into California. The low is completely dry except along its eastern flank over the Great Basin where some showers are occurring. By tomorrow morning at this time, this feature will be out of the picture. The fact that…
October 20, 2018/report
October 20, 2018 Summary: A weak upper low is centered just off the southern California coast this morning. The only evidence of its existence is on water vapor satellite imagery where a counterclockwise circulation pattern shows up nicely. Some models remain adamant that this system will pick up a minimal amount of moisture from the…
October 19, 2018/report
October 19, 2018 Summary: Another chilly morning in the valley with most ag stations this morning reporting readings in the low to mid 40s. the dry air mass remains and will allow those warm afternoons but chilly nights to continue. In the broad picture this morning, there is a low center over Utah and Colorado…
October 18, 2018/report
October 18, 2018 Summary: Fairly low dew points and a fairly dry air mass on the valley floor continue to allow a wide spread between overnight lows and daytime highs. Fowler this morning, as of 6:30am, was down to 38 degrees and Poso Creek, according to a grower, was down to 38 the past two…
October 17, 2018/report
October 17, 2018 Summary: Low pressure is currently centered over northern Arizona. All of the cloud cover from this system is on the eastern and northern flanks of the storm, well away from central California. A ridge of upper level high pressure is over and along the west coast of the U.S. with a ridge…