Alert archive / Wisconsin / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 758
The Storm Prediction Center issued this severe thunderstorm watch at Aug 18, 2004, 1:10 PM CDT for 4 states. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 18, 2004, 1:10 PM CDT (18:10 UTC)
- Expired
- Aug 18, 2004, 8:00 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 74 counties
Allamakee County, IA, Bremer County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Winneshiek County, IA, Alger County, MI, Baraga County, MI, Delta County, MI, Dickinson County, MI, Gogebic County, MI, Iron County, MI, Luce County, MI, Marquette County, MI, Menominee County, MI, Ontonagon County, MI, Schoolcraft County, MI, Fillmore County, MN, Houston County, MN, Winona County, MN, Adams County, WI, Brown County, WI, Buffalo County, WI, Calumet County, WI, Chippewa County, WI, Clark County, WI, Columbia County, WI, Crawford County, WI, Dane County, WI, Dodge County, WI, Door County, WI, Eau Claire County, WI, Florence County, WI, Fond du Lac County, WI, Forest County, WI, Grant County, WI, Green Lake County, WI, Iowa County, WI, Iron County, WI, Jackson County, WI, Jefferson County, WI, Juneau County, WI, Kewaunee County, WI, La Crosse County, WI, Langlade County, WI, Lincoln County, WI, Manitowoc County, WI, Marathon County, WI, Marinette County, WI, Marquette County, WI, Menominee County, WI, Monroe County, WI, Oconto County, WI, Oneida County, WI, Outagamie County, WI, Ozaukee County, WI, Portage County, WI, Price County, WI, Richland County, WI, Sauk County, WI, Shawano County, WI, Sheboygan County, WI, Taylor County, WI, Trempealeau County, WI, Vernon County, WI, Vilas County, WI, Washington County, WI, Waukesha County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI
The radar
The La Crosse radar (KARX), 127 km from the middle of the area, began a volume at 18:10 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.
Warnings issued inside it
6 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 2:11 PM CDT | Severe Thunderstorm Warning | GRB | Forest, Langlade, Marinette, Oconto | 49 min |
| Aug 18, 2:38 PM CDT | Severe Thunderstorm Warning | MQT | Marquette | 22 min |
| Aug 18, 3:00 PM CDT | Severe Thunderstorm Warning | GRB | Marinette | 15 min |
| Aug 18, 3:03 PM CDT | Tornado Warning | MQT | Menominee | 57 min |
| Aug 18, 3:31 PM CDT | Severe Thunderstorm Warning | GRB | Door | 44 min |
| Aug 18, 5:27 PM CDT | Severe Thunderstorm Warning | MKX | Dodge, Fond du Lac | 48 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 6.2 hours before the alert went out and 141 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 993 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 12:27 PM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Winneshiek | 63 min |
| Aug 18, 3:46 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Butler, Chickasaw, Clayton, Fayette and 3 more | 59 min |
| Aug 18, 4:17 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cass, Clarke, Dallas and 31 more | 118 min |
| Aug 18, 4:50 PM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Davis, Decatur, Henry, Jefferson, Lee and 7 more | 6 hr |
| Aug 18, 5:17 PM CDT | Mesoscale Discussion | SPC | Lee | 88 min |
| Aug 18, 5:35 PM CDT | Severe Thunderstorm Watch | SPC | Des Moines | 5 hr |
| Aug 18, 5:52 PM CDT | Mesoscale Discussion | SPC | Clayton, Fayette | 113 min |
| Aug 17, 7:48 PM CDT | Mesoscale Discussion | SPC | Berrien, Branch, Calhoun, Cass, Hillsdale, Jackson and 8 more | 117 min |
| Aug 18, 3:03 PM CDT | Mesoscale Discussion | SPC | Monroe, Wayne | 57 min |
| Aug 18, 4:30 PM CDT | Severe Thunderstorm Watch | SPC | Alcona, Alpena, Antrim, Arenac, Benzie, Charlevoix and 23 more | 6 hr |
| Aug 18, 6:41 PM CDT | Mesoscale Discussion | SPC | Alcona, Alpena, Antrim, Arenac, Bay, Cheboygan and 23 more | 94 min |
Nearby
Severe Thunderstorm Watches in Wisconsin, 2004Severe Thunderstorm Watches in Michigan, 2004Severe Thunderstorm Watches in Iowa, 2004Every severe thunderstorm watch in 2004
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.