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August 29, 2019 – Dry weather is forecast through the extended forecast. Daytime highs cool today to near or a little above normal with only minor fluctuations day to day through the extended period.

Discussion

A more stable pattern today with the NorCal under stable southwest flow aloft between a high pressure ridge over the southwest U.S. and a trough off the coast.

May see some patchy coastal stratus in the delta this morning with fort ord profiler showing about a 2000 feet marine layer.

A continued strong delta flow as well as a slight airmass cooling will bring down daytime highs today down to near or just a bit above normal. A weak shortwave is forecast to clip the northwest corner of the state today but it currently appears any precipitation will remain north of the forecast area.

Overall, only minor changes are in store through the short term period. Stable southwest flow will keep showers out of the forecast with daytime temperatures staying near or a little above normal.

The delta breeze will continue to remain moderate so may see some more stratus in the delta and near delta regions night and morning hours.

Extended Discussion (Monday through Thursday)

Next week begins with the prominent upper high centered across the Four Corners region keeping ridging over northern California. Ensemble guidance continues to keep this feature across the southwest US through mid-week, while a trough deepens in the east Pacific.

This trough eventually cuts off as an upper low, although how close this feature gets to northern California remains uncertain at this time.

For now, have kept conditions dry in the extended period with temperatures near or just above normal. If this low does track towards the coast, temperatures may be slightly cooler.