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August 8, 2016 – Other than some high cloudiness, clear skies cover the region. Temperatures are warmer compared to 24 hours ago as onshore flow has slackened and the marine layer is down to around 1000 feet.
The low over the PacNW will continue to edge slowly east early this week maintaining a weak trough south into NorCal. The airmass across the region appears to be too dry and too stable to support deep convection the next several days. Temperatures will remain close to average for the first third of August.
Warming is likely after mid-week as the trough lifts out and is replaced by ridging from the eastern Pacific. Warmest Valley temperatures will reach triple digits once again, possibly as early as Wednesday, but more likely on Thursday. The Sacramento region will likely see highs in the mid 90s as a Delta trickle continues.
Extended discussion (Friday through Monday)
Upper level ridging peaks on Friday with the ridge axis through Northern California. Temperatures will be a few degrees above normal and could reach the low triple digits for the northern Sacramento Valley. The ridge shifts eastward over the weekend and a trough moves in bringing cooler onshore flow. Near normal temperatures are expected Saturday, dropping to below normal for Sunday and Monday. Dry weather is forecast with any precipitation well to the north.