The NOAA Storm Prediction Center logged 5 tornado reports, 7 hail reports and 3 damaging-wind reports for the storm day from 12:00 UTC on Apr 21, 2026 to 12:00 UTC the next morning — most of them in CA, WI, NV.
| UTC | Rating | Place | County | State | Remarks |
|---|---|---|---|---|---|
| 21:10 | — | 5 Ne Kerman | Fresno | CA | EF-0... Winds estimated at 70 mph. Public called Law Enforcement to report a tornado near Biola. Video and radar evidence verifies the report. No damage found in the ar (HNX) |
| 22:30 | — | 3 Wsw Atwater | Merced | CA | ***Date of event was 4/21... time corrected to 3:30 PM PDT*** Corrects previous tornado report from 3 WSW Atwater. NWS Hanford Storm Survey team found damage indicative (HNX) |
| 00:09 | — | 8 Ene Clovis | Fresno | CA | ***Date of event was 4/21*** NWS Hanford Storm Survey team found damage indicative of an EF-1 tornado with peak winds of 95 mph. 2 Hardwood Tees snapped in half. Along (HNX) |
| 01:33 | — | Terra Bella | Tulare | CA | A Storm Survey Team from NWS Hanford... confirmed a EF-0 Tornado with peak winds of 80 mph... in Terra Bella... CA. Two videos show a well developed funnel and rotation (HNX) |
| 01:38 | — | 11 Ene Clovis | Fresno | CA | Damage assessment team reported snapped and uprooted trees consistent with EF1 damage from tornado around 5:24PM PDT. (HNX) |
| UTC | Size | Place | County | State | Remarks |
|---|---|---|---|---|---|
| 17:21 | 1.00″ | Greenfield | Milwaukee | WI | Observation with pictures. (MKX) |
| 17:24 | 1.00″ | 2 Wsw Saint Francis | Milwaukee | WI | Milwaukee Airport Observer pictures. (MKX) |
| 17:26 | 1.00″ | 3 W Saint Francis | Milwaukee | WI | Report from mPING: Quarter (1.00 in.). (MKX) |
| 17:56 | 1.00″ | 4 Se Wind Lake | Racine | WI | Report from mPING: Quarter (1.00 in.). (MKX) |
| 18:19 | 1.00″ | 2 Se Elmwood Park | Racine | WI | Report from mPING: Quarter (1.00 in.). (MKX) |
| 22:36 | 1.00″ | 6 Ne Firebaugh | Madera | CA | Report from mPING: Quarter (1.00 in.). (HNX) |
| 00:35 | 1.00″ | 3 Nne Orange Cove | Tulare | CA | Hail around penny size to quarter size. Location approximate. (HNX) |
| UTC | Gust | Place | County | State | Remarks |
|---|---|---|---|---|---|
| 22:55 | damage | 4 Ne Livingston | Merced | CA | Reports of many trees down and broken branches near Ballico and Cressey along Merced River bottom. Also some damage to vehicles due to the downed trees. (HNX) |
| 23:00 | damage | 3 Wsw Atwater | Merced | CA | Merced County OES reported property damage to a farm and house. (HNX) |
| 05:32 | 59 mph | 2 S Ruby Lake | Elko | NV | Mesonet station RLKN2 Ruby Lake RAWS. (LKN) |
Original file: SPC report page for this day. Times are UTC; the storm day starts at 12:00 UTC (7 AM CDT).