Category: Forecast

March 7, 2023 A broad area of low pressure continues to cover western Canada southward to central California. The active portion of this system has migrated further north with precipitation no further south than a Fort Bratt/Red Bluff line. Wednesday will be the last day of this pattern as a new low develops off the…

March 7, 2023 Temperatures early this morning are running mostly in the low to mid 30s. Isolated pockets dipped into the upper 20s. this is discussed in the frost summary below. A low center remains off the coast of the Pacific Northwest with the southern flank sagging southward into northern California. Light snow showers are…

March 4, 2023 A cold low is centered just west of the Washington coast this afternoon with a trough extending southward into northern California. Scattered showers are occurring from roughly Stockton north, but are not expected to advance southward into the growing area. This trough will remain in its present position until Wednesday then a…

March 6, 2023 Through Wednesday, we will remain under a cold low with its center over Washington state southward to central California. The main rain line will be pulling further north into northern California so we’ll at least have a few dry days before a new wet pattern develops Thursday. By Thursday, a lower latitude…

March 5, 2023 A cold front is currently moving through the south valley. Doppler radar indicates there are numerous showers at this hour, mainly north of Kern County. The latest balloon sounding above Oakland indicated a freezing level of just 3,300 feet. With very cold air above the valley floor, and partial clearing this afternoon,…

March 5, 2023 Light showers are widespread throughout the San Joaquin Valley this morning. This is due to a low center west of the Washington coast. A 150 knot jet stream is running from north to south then west to east across northern and central California. As it moves over the Sierra Nevada, it is…

March 4, 2023 Currently, the leading edge of the next very cold air mass is on a line from roughly Red Bluff to Northwest San Francisco then southwestward out to sea. That is the cold front that will move down the valley tonight, spreading showers ahead of it, reaching Fresno County during the late evening…

March 4, 2023 The weak high which governed our weather the past few days is being displaced to the southwest out over the eastern Pacific as yet another very cold low drops southward. At this hour, that low is placed west of Vancouver Island. Clouds in advance of the low have already spread over central…

March 3, 2023 As of midday, temperatures were anywhere from 4 to 7 degrees lower than 24 hours ago. Central California will remain on the eastern flank of weak high pressure off shore. The high will be suppressed further west over the ocean Saturday as yet another cold trough of low pressure digs southward from…

March 3, 2023 We are currently under the influence of weak high pressure over the eastern Pacific. This puts us in a northwesterly flow aloft which is keeping temperatures 5 to 7 degrees below average. This high  will keep its present position for another 18 hours or so then will begin to be suppressed southward…