Projected rainfall totals for Mariposa: 2.00" to 3.00"
Projected rainfall totals for Oakhurst: 2.00" to 3.00"
Projected rainfall totals for Yosemite Valley: 3.00" to 4.00"
Note: Graphic Updated at 7:00 A.M.
November 30, 2019 - The National Weather Service Hanford Office reports a storm system will impact Central California this afternoon into Monday.
Several feet of snow will accumulate in the Southern Sierra Nevada above 7,000 feet, where a Winter Storm Warning is in effect.
The heaviest precipitation will remain north of Tulare County.
The majority of this precipitation will fall Sunday.
Area Forecast Discussion National Weather Service Hanford CA 405 AM PST Sat Nov 30 2019 .SYNOPSIS... An approaching warm and wet storm system will bring heavy snow to the Sierra Nevada, heavy rain to the foothills, and moderate rain to the San Joaquin Valley starting Saturday afternoon through Monday afternoon. The pattern will remain active across the region, as another system will effect the area on Tuesday into Wednesday. && .DISCUSSION... For today, a short wave ridge will quickly move through the central California interior by late morning. Despite minor synoptic warming, abundant high level cloud cover associated with the approaching system will keep afternoon high temperatures similar to Friday. A negatively tilted trough at 40N/140W will continue to dig toward the southeast. This will setup a southwesterly flow aloft which will begin to transport subtropical moisture into central and northern California in the form of an atmospheric river event. Precipitation across the area will increase in coverage as the day progresses, with high-res models showing the bulk to the precipitation entering the area by the late afternoon. However, with the moist southwesterly flow, precipitation will begin earlier in the Sierra due to orographical enhancement. Precipitation will increase in intensity overnight Saturday into all day Sunday, with the heaviest of the precipitation occurring from Fresno County northward, with lower accumulations expected from Kings County southward in to Kern County. Snowfall levels on Saturday will begin around 4000 to 5000 feet due to the lingering cold airmass across the region. As the warmer, moist air moves into the region, snow levels will quickly rise to around 7000 feet by Sunday morning. A Winter Storm Warning will begin Saturday afternoon and will continue into Monday afternoon in the Sierra above 7000 feet where snowfall totals will be several feet. In addition to heavy mountain snowfall, up to 2 to 4 inches of rain is possible in the foothills. When combined with snowmelt from the recent storm, flooding will become an issue in the foothills and in the Sierra below 7000 feet, with the biggest threat mainly Fresno County northward. As such an Flood Watch will remain in effect from Saturday afternoon into Monday. On Tuesday into Wednesday, long range models show another upper level low digging off the CA coast on Tuesday before moving through the area on Wednesday. Precipitation will become likely across the area by late Tuesday and continue into Wednesday. From Thursday through the end of the period on Saturday, our pattern will stay active as long range models continue to bring another storm system into the region on Friday into Saturday.Source: NWS
