Storm Record · Columbia County
July 27, 2009: Hail in Columbia County
1″
Largest hail
2
NWS reports
What the National Weather Service recorded
Deep layer shear with a short wave trough interacted with instability ahead of a surface trough trailing from a surface low in central Wisconsin. The instability and shear produced supercell thunderstorms in southern Wisconsin along and ahead of the surface trough. The severe thunderstorms produced damaging winds, large hail and tornadoes. Heavy rains accompanying the severe thunderstorms produced flash flooding in Lafayette County.
Source: NOAA Storm Events Database · episode 32323
Every report, in the Weather Service's words
Where It Hit
| Location | County | Hazard | Size | Report |
|---|---|---|---|---|
| Cambria (1 N) | Columbia | Hail | 1" hail | Police officials estimated hail up to 1 inch in diameter fell in a 1/2 mile wide swath from one mile north of Cambria near State Highway 33 to the Village of Cambria. |
| Cambria | Columbia | Hail | 0.88" hail | A trained weather spotter reported hail estimated at 0.88 inch in diameter in the Village of Cambria. |