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Storm Events Database
Event Details
| Event | Hail |
| Magnitude | 0.75 in. |
| State | WISCONSIN |
| County/Area | ONEIDA |
| WFO | GRB |
| Begin Date | 08/20/2010 06:25:00 CST-6 |
| Begin Range | 1 |
| Begin Azimuth | SE |
| Begin Location | LAKE TOMAHAWK |
| Begin Lat/Lon | 45.81/-89.59 |
| End Date | 08/20/2010 06:25:00 CST-6 |
| Deaths Direct/Indirect | 0/0 (fatality details below, when available...) |
| Injuries Direct/Indirect | 0/0 |
| Property Damage | 0.00K |
| Crop Damage | 0.00K |
| Episode Narrative | A line of thunderstorms developed north of a warm front that was slowly moving from south to north across Wisconsin. The line of storms moved east across northern Wisconsin during the morning, producing penny to nickel size hail in Vilas County and Oneida County. More storms developed during the afternoon as a pair of upper level disturbances passed over the state. These storms produced large hail, wind damage, flooding rains and a tornado. Severe storms with heavy rains, hail, high winds, and a tornado, moved across the Fox Valley and Green Bay late in the afternoon. Highs winds blew down trees and damaged buildings at several locations. Hail over an inch in diameter fell in Green Bay and De Pere. Intense rains caused flooding in Green Bay. In addition, thunderstorm winds produced a seiche on the northern shore of Lake Winnebago. Water rose into the yards of several shoreline homes. |
| Event Narrative | Penny size hail fell accompanied by torrential rain at Lake Tomahawk. |
All events for this episode:
| Location | County/Zone | St. | Date | Time | T.Z. | Type | Mag | Dth | Inj | PrD | CrD |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Totals: | 0 | 4 | 208.00K | 0.00K | |||||||
| HAZELHURST | ONEIDA CO. | WI | 08/20/2010 | 06:15 | CST-6 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| LAKE TOMAHAWK | ONEIDA CO. | WI | 08/20/2010 | 06:25 | CST-6 | Hail | 0.75 in. | 0 | 0 | 0.00K | 0.00K |
| LAND O LAKES | VILAS CO. | WI | 08/20/2010 | 09:59 | CST-6 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| NEW LONDON | WAUPACA CO. | WI | 08/20/2010 | 14:13 | CST-6 | Thunderstorm Wind | 78 kts. EG | 0 | 0 | 100.00K | 0.00K |
| ALLOUEZ | BROWN CO. | WI | 08/20/2010 | 14:25 | CST-6 | Hail | 1.50 in. | 0 | 0 | 0.00K | 0.00K |
| BELLEVUE | BROWN CO. | WI | 08/20/2010 | 14:32 | CST-6 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| GREEN BAY | BROWN CO. | WI | 08/20/2010 | 14:37 | CST-6 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| GREEN BAY | BROWN CO. | WI | 08/20/2010 | 14:38 | CST-6 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| NEENAH | WINNEBAGO CO. | WI | 08/20/2010 | 14:50 | CST-6 | Thunderstorm Wind | 56 kts. EG | 0 | 0 | 0.00K | 0.00K |
| DARBOY | CALUMET CO. | WI | 08/20/2010 | 15:00 | CST-6 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| KAUKAUNA | OUTAGAMIE CO. | WI | 08/20/2010 | 15:07 | CST-6 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| GREEN BAY | BROWN CO. | WI | 08/20/2010 | 15:15 | CST-6 | Flash Flood | 0 | 0 | 8.00K | 0.00K | |
| BELLEVUE | BROWN CO. | WI | 08/20/2010 | 15:18 | CST-6 | Thunderstorm Wind | 54 kts. MG | 0 | 0 | 0.00K | 0.00K |
| GREENLEAF | BROWN CO. | WI | 08/20/2010 | 15:20 | CST-6 | Thunderstorm Wind | 74 kts. EG | 0 | 0 | 0.00K | 0.00K |
| GREENLEAF | BROWN CO. | WI | 08/20/2010 | 15:20 | CST-6 | Tornado | EF1 | 0 | 0 | 100.00K | 0.00K |
| ROSIERE | KEWAUNEE CO. | WI | 08/20/2010 | 15:40 | CST-6 | Thunderstorm Wind | 56 kts. EG | 0 | 0 | 0.00K | 0.00K |
| MANITOWOC | MANITOWOC CO. | WI | 08/20/2010 | 17:00 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| OSHKOSH | WINNEBAGO CO. | WI | 08/20/2010 | 17:00 | CST-6 | Thunderstorm Wind | 56 kts. EG | 0 | 0 | 0.00K | 0.00K |
| DARBOY | CALUMET CO. | WI | 08/20/2010 | 17:15 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| WINNEBAGO (ZONE) | WINNEBAGO (ZONE) | WI | 08/20/2010 | 17:15 | CST-6 | Seiche | 0 | 0 | 0.00K | 0.00K | |
| CALUMET (ZONE) | CALUMET (ZONE) | WI | 08/20/2010 | 17:15 | CST-6 | Seiche | 0 | 0 | 0.00K | 0.00K | |
| GREENVILLE | OUTAGAMIE CO. | WI | 08/20/2010 | 17:26 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| NEENAH | WINNEBAGO CO. | WI | 08/20/2010 | 17:40 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 4 | 0.00K | 0.00K |
| Totals: | 0 | 4 | 208.00K | 0.00K |
