Author: Trudy Hibler

November 7, 2017 Summary:  Weak high pressure has moved in from the eastern Pacific Ocean, generating mostly clear skies over the valley.  Many locations have chilled into the mid to upper 30s with even a few river bottoms approaching the  freezing mark, but certainly nothing unusual for this time of year.  Temporarily, we are under…

November 6, 2017 Summary: Skies have generally cleared over the entire valley this afternoon with the exception of a pocket of lower clouds banking up against the Tehachapi Mountains.  Off shore, there is an upper level disturbance which will rapidly weaken and eventually move through southern California with no fan fare.   Upper level high…

November 6, 2017 Summary: Conditions are quite variable in the San Joaquin Valley this morning.  Over Kern County, a swath of subtropical clouds is moving through with even a few light showers south of the Kern County mountains.  Further north, there is a considerable amount of low clouds in some areas while from roughly Madera…

November 5, 2017 Summary: A cold low pressure system continues to spin over Washington and Oregon this morning.  Freezing levels are between 2,000 and 3,000 feet north of the California/Oregon border.  Some of this colder air has sunk southward into northern California.  For example, the freezing level overnight at Oakland was down to 7,000 feet…

November 4, 2017 Summary: Only a few very light showers, probably not even reaching the ground, are moving through San Luis Obispo and Monterey Counties then into Kings County where they disappear from radar.  This is all that is left from a dissipating cold front.  Still, a moist west/southwest flow aloft will continue tonight through…

November 4, 2017 Summary: A weak cold front is moving slowly down the valley this morning.  As of the time of this writing, light showers were falling in Fresno County with a few isolated showers in northern Kings County.  To the north and south of that line, things are precipitation free.  The radar returns themselves…

November 3, 2017 Summary: A trough of low pressure and its associated cold front are currently moving slowly southward through northern California.  Doppler radar indicates showers are falling from mainly Sacramento northward, however it is possible light showers could spread as far south as  Fresno County later tonight with a chance of light showers spreading…

November 3, 2017 Summary: A very weak wave of upper level low pressure is currently moving through central California.  Light showers are falling over the Coast Range, but largely dissipating as they move over the west side of the valley.  Doppler Radar indicates much of the precipitation is not reaching the ground, but there have…

November 2, 2017 Summary: A weak upper level  low is several hundred miles off the central coast this afternoon.  The counterclockwise circulation around this feature has the winds aloft out of the southwest which is pushing plenty of cloud cover over central California.  Temperatures so far have been held down, especially north of Kern County,…

November 2, 2017 Summary: Marine air is surging into southern and central California this morning.  In fact, satellite imagery shows the cloud deck from this marine layer has reached 6,000 feet and is spilling over the Kern County mountains.  It’s currently moving up the valley. Many locations at this time have a fairly low overcast…