Storm Record · Waukesha County
June 23, 2010: Straight-line wind in Waukesha County
What the National Weather Service recorded
A warm front lifted through southern Wisconsin on the nose of a 30 knot low-level jet. Good elevated instability...MLCAPE 2000-3000J/kg...and 40 to 50 knots of deep layer shear supported an MCS as it tracked from northern Iowa across southern Wisconsin during the early morning hours of June 23rd. Although the complex weakened as it crossed Wisconsin, it still produced scattered wind damage as well as flash flooding in portions of Jefferson County and northwest Waukesha County.
Source: NOAA Storm Events Database · episode 41840
Every report, in the Weather Service's words
Where It Hit
| Location | County | Hazard | Size | Report |
|---|---|---|---|---|
| Oconomowoc (2 SW) | Waukesha | Wind | 64 mph wind | A four-foot in diameter elm tree was blown over as well as several other smaller trees. |
| Lannon | Waukesha | Hail | 0.75" hail | Hail size was estimated by a trained spotter. |
Service areas this storm touched