Summary- Troughing will continue in the central Pacific with fronts approaching Washington-Oregon, with rain. There is increasing support for troughing in the southern Plateau area east of Southern California. This should begin to increase the support for dry winds and frosts into S California valleys later in Oct and into November.
Summary- Troughing will continue in the central Pacific with fronts approaching Washington-Oregon, with rain. For California, including the north, continued drier than normal overall with recurrent dry windy events, interrupted by windy cold fronts with scant or small precipitation through October 19th.
Summary- Troughing will continue in the interior west US, while California and the California coast sees a return of drier and warmer than normal conditions. Santa Ana winds, or their central and northern California equivalents will occur during this period.
Summary- Upper low pressure near central and southern California will continue some support for showers in the SierraNV, and possibly also in southern California. Another tropical cyclone is suggested to move into W Mexico on September 17-19th, producing rains in Sinaloa/Sonora, thence into S Arizona and New Mexico. The active trough in California will tend to steer the tropical cyclone into W...
Summary- High pressure continues through about September 16 in the Pacific Northwest and Great Basin. Unusually warm or hot conditions continue likely during this period in Oregon and most of California with support for dry conditions in the north. Upper low pressure off California will continue the support for rains in southern and central California from TSTMS, while NW California starts to see...
Summary- Strong upper high pressure continues through September 8, and possibly the 9th, producing hot conditions. Hottest conditions are September 1-6 in all of Calif, and 3-8th in N California. Model guidance suggests a tropical cyclone coming N to central Baja California on Sept. 3-5th then stalling southwest of S California. Moisture mostly remains or drifts at sea and turns westward, but...
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