Author: Trudy Hibler

January 24, 2018 Summary:  Rain has spread over most of northern California.  Precipitation is approaching Sacramento and San Francisco, but the portion of the front off the central coast appears to be losing its upper air support, as expected.  Showers will spread down the valley by late evening and during the early morning hours.  By…

January 24, 2018 Summary:  A considerable amount of fog formed overnight north of Kern County, mainly towards the center and western side of the San Joaquin Valley.  Satellite imagery is rather interesting.  The fog is moving slowly northwestward as a weak southeasterly flow is moving up the valley towards a cold front which is now…

January 23, 2018 Summary:  Low cloud cover which blanketed much of northern Tulare county and points northward is still surprisingly hanging in there, but is dissipating from south to north.  Weak upper level high pressure will hang around through tonight for clear skies, although no doubt some patchy fog will form Wednesday morning.  Later Wednesday,…

January 23, 2018 Summary:  Low clouds developed over much of the valley during the night, but have taken on a rather odd configuration.  Hanford and Fresno are each reporting overcast skies, Hanford at 3,400 feet and Fresno at just 800 feet.  In the meantime, much of the southeast sector of the valley was clear as…

January 22, 2018 Summary:  From Fresno County northward, skies are mostly to partly cloudy this afternoon with abundant sunshine in the south valley.  The low pressure system which dove into northern California early this morning just plain fell apart on its southward journey.   Weak upper level high pressure is currently filling in from the eastern…

January 22, 2018 Summary:  A few light showers have spread as far south as Salinas along the coast and Merced inland.  Doppler radar currently indicates showers are dissipating once they reach about Madera County.  The storm actually stalled overnight, leaving the southern half of the valley relatively clear.  This allowed temperatures to drop into the…

January 21, 2018 Frost Summary: The cloud shield ahead of a cold front currently moving into northern California has now advanced down to a Monterey/Merced line.  These clouds will increase over the remainder of the valley as the night wears on.  This will greatly slow the radiational cooling process, especially late tonight as the clouds…

January 20, 2018 Summary:  All of the upslope clouds which were along the Sierra Nevada foothills and the valley facing slopes of the Tehachapi Mountains dissipated during the early morning hours, allowing for strong radiational cooling, as expected.  Just about all locations this morning are in the upper 20s to the lower 30s as of…

January 20, 2018 Summary:  Upslope clouds against the Tehachapi Mountains and the Sierra Nevada foothills continue to regenerate over not just Tulare and Kern Counties, but also over eastern Fresno County up against the foothills.  The central and western portions of the valley are generally clear north of Kern County.  The big question of the…

January 20, 2018 Summary:As expected, plenty of upslope clouds have developed against the north facing slopes of the Kern County mountains and against the west facing slopes of the foothills of the Sierra Nevada.  Points north of that have partly cloudy to clear skies at this hour.  The upsloping is generating a few light showers…