Strong thunderstorms developed over the northern Sacramento Valley, dropping large hail, up to 3 inches in diameter. There was also large amounts of small hail, up to 5 inches deep, bringing slippery road conditions, clogging storm drains and causing vehicle accidents. Multiple funnel clouds were reported, but no tornado touchdowns were observed. Heavy showers and thunderstorms also brought locally heavy rains into the Valley and foothills.

Hail in TEHAMA, CALIFORNIA
From 23-JAN-16 06:19:00 to 23-JAN-16 06:40:00 (PST-8)
Location: CORNING MUNI ARPT
Magnitude: 1.00 
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Department of Highways

Large amounts of hail fell and accumulated, 4 to 5 inches deep on I5 and adjacent local roads. The hail was up to an inch in diameter. The hail brought very slippery conditions, causing 3 vehicles to slide into the ditch. These vehicles needed to be towed. The hail also caused long traffic delays. Snow plows were required to plow the hail off of I5.

Funnel Cloud in TEHAMA, CALIFORNIA
From 23-JAN-16 15:15:00 to 23-JAN-16 15:26:00 (PST-8)
Location: (RBL)RED BLUFF MUNI
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Funnel cloud spotted moving east at 10 mph toward Richfield.

Hail in TEHAMA, CALIFORNIA
From 23-JAN-16 15:05:00 to 23-JAN-16 15:12:00 (PST-8)
Location: RAWSON
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large spiked hail fell, up to 3 inches in diameter across the spikes. No damage was reported, with the hail falling mainly in open grasslands. The largest hailstones tied a California state record for largest hail observed in California, set on September 2, 1960 in San Diego County. This was confirmed through correspondence with the Severe Prediction Center (SPC).

Flood in TEHAMA, CALIFORNIA
From 23-JAN-16 15:00:00 to 23-JAN-16 16:00:00 (PST-8)
Location: CORNING
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Street flooding occurred on 10th street in Corning, with large amounts of 1/4 inch hail.

Funnel Cloud in TEHAMA, CALIFORNIA
From 23-JAN-16 15:05:00 to 23-JAN-16 15:12:00 (PST-8)
Location: RAWSON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Funnel cloud sighted and photographed. No clear evidence of a tornado touchdown.

Hail in TEHAMA, CALIFORNIA
From 23-JAN-16 15:15:00 to 23-JAN-16 15:26:00 (PST-8)
Location: RICHFIELD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Lots of hail on the ground, hailstones up to 0.75 inches in diameter.

Funnel Cloud in TEHAMA, CALIFORNIA
From 23-JAN-16 16:40:00 to 23-JAN-16 16:50:00 (PST-8)
Location: KIRKWOOD
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Two funnel clouds were observed about 1/2 mile away from the observer. One funnel came close to the ground but he could not confirm a touchdown.

Hail in TEHAMA, CALIFORNIA
From 23-JAN-16 16:15:00 to 23-JAN-16 16:30:00 (PST-8)
Location: CORNING
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail fell to 2 to 3 inches deep in Corning, clogging storm drains and causing local flooding. The largest hailstones were quarter size.

Hail in TEHAMA, CALIFORNIA
From 23-JAN-16 06:20:00 to 23-JAN-16 06:58:00 (PST-8)
Location: RICHFIELD
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Department of Highways

Large amounts of hail fell and accumulated, 4 to 5 inches deep on I5 and adjacent local roads. The hail was up to an inch in diameter. The hail brought very slippery conditions,  Snow plows were required to plow the hail off of I5.