Scattered thunderstorms this afternoon, mild temperatures accompany them.

An upper level low will move over the northstate this afternoon bringing the threat for thunderstorms starting in the mountains around 11am and in the valley closer to 1pm.  The storms will generally move southwest to northeast and a few could have some small hail associated with them.  Helicity (rotation in the atmosphere) values are low so there really isn’t much of a chance for any tornadoes, but hail, gusty winds and isolated urban and small stream flooding is possible with these storms.  The low pressure area will slowly drift to our southeast Monday evening into Tuesday, but will be close enough to NorCal that we’ll have another shot for showers and thunderstorms tomorrow as well.

From Tuesday afternoon onwards the low tries to move eastward, but actually sets up a blocking pattern preventing any major movement.  High pressure building from the west and a ridge to the east will essentially lock the weather pattern in place for much of the week.  That will result in moderately warm temperatures by the end of the week but they’ll take their time getting there.  Highs will slowly increase through the 80s and towards 90° by Thursday and Friday.  Generally zonal flow will keep temperatures from reaching much farther than the low 90s through the weekend before initial hints show another trough passing just to our north to cool things down again as we move into next week.

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And be sure to tune in for your latest forecast with Mike Krueger tonight on the KRCR News Channel 7 News at 5, 5:30, 6:30 and 11. And the KRCR News Channel 7 News on Fox20 at 10.