Projected rainfall totals for Mariposa: 0.25" to 0.50"
Projected rainfall totals for Oakhurst: 0.25" to 0.50"
Projected rainfall totals for Yosemite Valley: 0.50" to 1.00"
January 25, 2020 - The National Weather Service Hanford Office reports a cold front will push through the CENCAL interior starting late tonight and continuing through Sunday night.
Precipitation will be light with this system as it moves through.
Rainfall will be generally light and limited to mainly North of Kern County.
Up to one tenth of an inch is possible in the SJV and up to a half an inch is possible in the Sierra Foothills.
Area Forecast Discussion National Weather Service Hanford CA 250 PM PST Sat Jan 25 2020 .SYNOPSIS... Seasonably mild conditions can be expected today, then rain and mountain snow likely overnight into Sunday morning, mainly from Fresno County northward. Isolated thunderstorm are possible during the late morning and afternoon on Sunday, mainly in Mariposa and Madera Counties. Dry weather then returns as another ridge of high pressure builds over the region on Monday and Tuesday with mornign fog possible both mornings. && .DISCUSSION... Fog has quickly dissipated across the area this morning giving way to a warm Saturday afternoon across the Southern San Joaquin valley and Kern County desert. Upper level ridge remains on place over the area. There is some persistent low level cloud cover along the eastern half of the valley, as well as increasing mid to upper level clouds associated with the approaching system. With the persistent clouds, afternoon high temperatures will remain in the low 60s in the valley and mid to upper 60s in the Kern County desert. Models are still consistent bringing the upper level trough and its associated cold front into the central California interior overnight into early Sunday morning. Precipitation will move into the northern half of the district by midnight/early morning before spreading southward across the district by early Sunday afternoon. As with prior model solutions, a majority of the energy and precipitation with this system will pass to our north. Thus, QPF amounts within the valley will be less than a tenth of an inch primarily north of Kern County. Between a tenth and a quarter of an inch will be possible in the central Sierra foothills and up to a half an inch of QPF is possible in the Yosemite Park area. Generally less than a tenth of an inch is possible toward the Tulare County and Tehachapi mountains. No precipitation is expected in the Bakersfield area nor the Kern County desert. Snow amounts of three to six inches is likely in the Yosemite area southward into far northern Tulare County. Snow levels will begin around 8,000 feet tonight, before falling to around 6500 feet by Sunday afternoon as the cold core of the trough pushes through the area. In addition, as the trough moves through the northern half of the district, isolated post-frontal thunderstorms are possible, mainly in Mariposa and Madera Counties. The aforementioned trough moves eastward out of the area by Sunday afternoon. High-resolution models indicate an increasing LAS-SFO pressure gradient to roughly 10mb. As such, strong northwesterly winds will be possible in the Kern County mountains late Sunday morning into Monday morning. Wind gusts up to 45 to 55 mph are likely, mainly through and below the Kern County mountain passes. A wind advisory has been issued from 10 AM PST Sunday morning through 4 AM PST Monday morning. Upper level ridge will setup across the area on Monday into early Tuesday and patchy fog may become possible in the valley both mornings. Longer-term models still advertise a weak upper level trough moving slightly north of our area late Tuesday into Wednesday, but no precipitation is expected anywhere across the district. This feature may be enough to mix the lower atmosphere and prevent for formation on Wednesday morning. Moving on from Thursday into the end of the forecast period next Saturday, longer-term models in decent agreement building a strong 588 decameter high pressure across the region. Temperatures during this time frame will increase to above average, with upper 60s to low 70s across the valley and Kern County desert by the end of next week. It looks like after the chance of rain on Sunday, conditions for the remainder of the month appear to remain dry. Morning fog may also be possible those mornings in the valley.Source: NWS
