Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 17, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 18, 2010, 1:53 PM CDT for Lafayette County, Wisconsin. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 18, 2010, 1:53 PM CDT (18:53 UTC)
- Expired
- Jun 18, 2010, 2:45 PM CDT
- In force
- 52 min
- Issued by
- NWS Milwaukee, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Lafayette County, WI
The radar
The Quad Cities radar (KDVN), 122 km from the middle of the area, began a volume at 18:56 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 18, 12:29 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 6.9 hours before the alert went out and 120 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 48 J/kg
- Mixed-layer CIN
- -560 J/kg
- Mixed-layer LCL
- 1673 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Milwaukee, WI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 18, 3:47 AM CDT, 10 hours 6 minutes earlier.
Area forecast discussion, Jun 18, 3:47 AM CDT, 10 hours 6 minutes before
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</html>Hazardous weather outlook, Jun 18, 6:17 AM CDT, 7 hours 36 minutes before
HAZARDOUS WEATHER OUTLOOK...CORRECTED NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 617 AM CDT FRI JUN 18 2010 WIZ046-047-051-052-056>060-062>072-191130- MARQUETTE-GREEN LAKE-FOND DU LAC-SHEBOYGAN-SAUK-COLUMBIA-DODGE- WASHINGTON-OZAUKEE-IOWA-DANE-JEFFERSON-WAUKESHA-MILWAUKEE- LAFAYETTE-GREEN-ROCK-WALWORTH-RACINE-KENOSHA- 617 AM CDT FRI JUN 18 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL WISCONSIN...SOUTH CENTRAL WISCONSIN AND SOUTHEAST WISCONSIN. .DAY ONE...TODAY AND TONIGHT THERE IS A CHANCE FOR MORE THUNDERSTORMS LATER THIS MORNING OVER PORTIONS OF SOUTH CENTRAL WISCONSIN. SCATTERED THUNDERSTORMS ARE EXPECTED OVER SOUTH CENTRAL AND SOUTHEAST WISCONSIN THIS AFTERNOON AND EVENING. THE ATMOSPHERE IS EXPECTED TO BECOME VERY UNSTABLE THIS AFTERNOON. THIS INSTABILITY ALONG WITH SOME ATMOSPHERIC WIND SHEAR WILL CREATE CONDITIONS THAT MAY PRODUCE STRONG THUNDERSTORMS THIS AFTERNOON AND EVENING. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS DURING THIS TIME. THE MAIN THREAT WILL BE DAMAGING WINDS. AN ISOLATED TORNADO IS POSSIBLE ALONG WITH A FEW LARGE HAIL REPORTS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY A FRONTAL BOUNDARY SETTING UP OVER NORTHERN ILLINOIS AND IOWA FROM SUNDAY THROUGH WEDNESDAY MAY BRING SEVERAL ROUNDS OF THUNDERSTORMS TO SOUTHERN WISCONSIN. HEAVY RAINFALL MAY ACCOMPANY THESE THUNDERSTORMS...INCREASING THE THREAT OF AREAL AND FLASH FLOODING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING. LMZ643>646-191130- SHEBOYGAN TO PORT WASHINGTON WI- PORT WASHINGTON TO NORTH POINT LIGHT WI- NORTH POINT LIGHT TO WIND POINT WI- WIND POINT WI TO WINTHROP HARBOR IL- 617 AM CDT FRI JUN 18 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON WITH THUNDERSTORMS LIKELY THIS EVENING. THERE IS A CHANCE THAT SOME OF THESE THUNDERSTORMS COULD BECOME SEVERE...PRODUCING DAMAGING WIND GUSTS AND LARGE HAIL. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY WIND AND WAVES WILL APPROACH SMALL CRAFT ADVISORY LEVELS ON SATURDAY. THE CHANCE FOR THUNDERSTORMS WILL RETURN SUNDAY AND CONTINUE THROUGH WEDNESDAY. WWW.WEATHER.GOV/MILWAUKEE MBK
In the hours before
Special weather statement, Jun 18, 11:58 AM CDT, 1 hour 55 minutes before
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</html>Special weather statement, Jun 18, 12:51 PM CDT, 1 hour 2 minutes before
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</html>Special weather statement, Jun 18, 1:47 PM CDT, 6 minutes before
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</html>The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 2:21 PM CDT | Severe Thunderstorm Warning | MKX | Green, Lafayette | 39 min |
| Jun 18, 2:55 PM CDT | Severe Thunderstorm Warning | MKX | Green, Rock | 50 min |
| Jun 18, 3:24 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Jefferson, Rock, Walworth, Waukesha | 51 min |
| Jun 18, 3:26 PM CDT | Special Marine Warning | MKX | 94 min | |
| Jun 18, 3:50 PM CDT | Severe Thunderstorm Warning | MKX | Jefferson, Kenosha, Milwaukee, Racine, Walworth, Waukesha | 70 min |
| Jun 18, 4:42 PM CDT | Special Marine Warning | MKX | 48 min | |
| Jun 18, 4:50 PM CDT | Special Marine Warning | MKX | 40 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2010Every severe thunderstorm warning in 2010
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.