Storm Events Database

Event Details

Event Strong Wind
Magnitude 43 kts.
State WISCONSIN
County/Area OZAUKEE
WFO MKX
Report Source ASOS
NCDC Data Source CSV
Begin Date 2009-09-27 21:00:00.0 CST-6
End Date 2009-09-28 18:00:00.0 CST-6
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 5.00K
Crop Damage 0.00K
Episode Narrative Widespread, gradient, strong, northwest winds in the wake of a cold front affected south-central and southeast Wisconsin for about a 21-hour period. The associated deep low pressure moved east across Ontario, Canada. Maximum gusts were in the 39 to 43 knot range (45 to 50 mph) in the Fond du Lac and Sheboygan area south to the Illinois border and in Sauk and Iowa counties. Elsewhere in south-central and southeast Wisconsin maximum wind gusts were in the 35 to 44 mph range while sustained winds were below 26 knots (30 mph). At least eight ASOS or AWOS reporting sites in this strong wind event had sustained wind speeds of 26 to 32 knots (30 to 37 mph) for one hour or more. Severe weather spotter reports and newspaper accounts indicated that scattered power-outages occurred in most of the affected counties due to broken tree branches falling on power-lines. Additionally, some large trees in Fond du Lac County were pushed over. However, a good estimation of damage losses was not possible with this event, therefore a nominal $5000 loss estimate (power-lines) was assigned to each county in this strong wind event. One concentrated area of power-outages stretched from the City of Waukesha and Delafield area on up into southern Washington County. Tree debris knocked a telephone line onto Interstate-94 just south of Delafield near CTH C at about 2020 CST September 27th. This resulted in the closure of the freeway for about 90 minutes. Along the Lake Michigan shoreline from Sheboygan south to the Illinois border, wind gusts of 31 to 36 knots were reported (36 to 45 mph). However, a Marine Strong Wind event was not logged in this issue of Storm Data for September, 2009, since there were no injuries, fatalities, or damage associated with these gusts.
Event Narrative


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All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 55.00K 0.00K
SAUK (ZONE) SAUK (ZONE) WI 09/27/2009 21:00 CST-6 Strong Wind 26 kts. MS 0 0 5.00K 0.00K
SHEBOYGAN (ZONE) SHEBOYGAN (ZONE) WI 09/27/2009 21:00 CST-6 Strong Wind 43 kts. MG 0 0 5.00K 0.00K
FOND DU LAC (ZONE) FOND DU LAC (ZONE) WI 09/27/2009 21:00 CST-6 Strong Wind 40 kts. MG 0 0 5.00K 0.00K
KENOSHA (ZONE) KENOSHA (ZONE) WI 09/27/2009 21:00 CST-6 Strong Wind 27 kts. MS 0 0 5.00K 0.00K
RACINE (ZONE) RACINE (ZONE) WI 09/27/2009 21:00 CST-6 Strong Wind 26 kts. MS 0 0 5.00K 0.00K
WASHINGTON (ZONE) WASHINGTON (ZONE) WI 09/27/2009 21:00 CST-6 Strong Wind 26 kts. MS 0 0 5.00K 0.00K
IOWA (ZONE) IOWA (ZONE) WI 09/27/2009 21:00 CST-6 Strong Wind 32 kts. MS 0 0 5.00K 0.00K
WALWORTH (ZONE) WALWORTH (ZONE) WI 09/27/2009 21:00 CST-6 Strong Wind 43 kts. MG 0 0 5.00K 0.00K
WAUKESHA (ZONE) WAUKESHA (ZONE) WI 09/27/2009 21:00 CST-6 Strong Wind 39 kts. EG 0 0 5.00K 0.00K
OZAUKEE (ZONE) OZAUKEE (ZONE) WI 09/27/2009 21:00 CST-6 Strong Wind 43 kts. MG 0 0 5.00K 0.00K
MILWAUKEE (ZONE) MILWAUKEE (ZONE) WI 09/27/2009 21:00 CST-6 Strong Wind 39 kts. MG 0 0 5.00K 0.00K
Totals: 0 0 55.00K 0.00K