An upper level low dropped slowly southward off the California coast on between December 19 and December 21. Moisture associated with this feature produced widespread precipitation across our area between the evening of December 19 and the morning of December 21 with most of the precipitation occurring during the afternoon and evening of December 20. Much of the San Joaquin Valley and the Kern County Mountains and Deserts picked up between a half inch and an inch of rainfall while the West Side Hills picked up between an inch and an inch and a half. While amounts in the Sierra Nevada and adjacent foothills varied, many locations picked up between a half inch and an inch of liquid precipitation. Several SNOTEL stations above 8000 feet picked up an estimated 3 to 8 inches of new snowfall while 1 to 3 inches of new snow accumulated between 7000 and 8000 feet. Elevations below 7000 feet generally picked up all rain.

Flood in KINGS, CALIFORNIA
From 19-DEC-23 17:03:00 to 19-DEC-23 20:03:00 (PST-8)
Location: HANFORD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

An NWS employee reported roadway flooding at the intersection of Lacey Blvd. and Santa Fe Ave. in Hanford.

Flood in FRESNO, CALIFORNIA
From 19-DEC-23 17:45:00 to 19-DEC-23 20:45:00 (PST-8)
Location: COALINGA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

California Highway Patrol reported several rocks blocking one lane of SR 198 5SW Coalinga.

Flood in KINGS, CALIFORNIA
From 20-DEC-23 18:28:00 to 20-DEC-23 21:28:00 (PST-8)
Location: HANFORD BLAIR ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

California Highway Patrol reported roadway flooding on SR 43 near the intersection of Iona Ave.

Flood in KERN, CALIFORNIA
From 21-DEC-23 13:18:00 to 21-DEC-23 16:18:00 (PST-8)
Location: LOST HILLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

California Highway Patrol reported roadway flooding at the intersection of SR 33 and Lerdo Hwy.

Flood in KERN, CALIFORNIA
From 21-DEC-23 14:06:00 to 21-DEC-23 17:06:00 (PST-8)
Location: GREENFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

California Highway Patrol reported the middle lanes of SR 99 were flooded at the Houghton Rd. offramp.

Flood in KERN, CALIFORNIA
From 21-DEC-23 14:26:00 to 21-DEC-23 17:26:00 (PST-8)
Location: LAKEVIEW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

California Highway Patrol reported roadway flooding at the intersection of SR 166 and Old River Rd.

Winter Weather in YOSEMITE NP OUTSIDE OF THE VALLEY, CALIFORNIA
From 19-DEC-23 22:00:00 to 21-DEC-23 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Several higher elevation SNOTEL stations picked up an estimated 3 to 8 inches of new snowfall.

Winter Weather in UPPER SAN JOAQUIN RIVER, CALIFORNIA
From 19-DEC-23 22:00:00 to 21-DEC-23 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Several higher elevation SNOTEL stations picked up an estimated 3 to 8 inches of new snowfall.

Winter Weather in KAISER TO RODGERS RIDGE, CALIFORNIA
From 19-DEC-23 22:00:00 to 21-DEC-23 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Several higher elevation SNOTEL stations picked up an estimated 3 to 8 inches of new snowfall.

Winter Weather in KINGS CANYON NP, CALIFORNIA
From 19-DEC-23 22:00:00 to 21-DEC-23 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Several higher elevation SNOTEL stations picked up an estimated 3 to 8 inches of new snowfall.

Winter Weather in SEQUOIA NP, CALIFORNIA
From 19-DEC-23 22:00:00 to 21-DEC-23 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Several higher elevation SNOTEL stations picked up an estimated 3 to 8 inches of new snowfall.

Winter Weather in SOUTH END OF THE UPPER SIERRA, CALIFORNIA
From 19-DEC-23 22:00:00 to 21-DEC-23 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Several higher elevation SNOTEL stations picked up an estimated 3 to 8 inches of new snowfall.