Alert archive / Wisconsin / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 222

May 10, 2001Dubuque County, Iowa; 28 counties in Wisconsin

The Storm Prediction Center issued this severe thunderstorm watch at May 10, 2001, 5:00 PM CDT for Dubuque County, Iowa; 28 counties in Wisconsin. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 10, 2001, 5:00 PM CDT (22:00 UTC)
Expired
May 10, 2001, 10:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 29 counties

Dubuque County, IA, Adams County, WI, Brown County, WI, Calumet County, WI, Columbia County, WI, Crawford County, WI, Dane County, WI, Dodge County, WI, Fond du Lac County, WI, Grant County, WI, Green Lake County, WI, Iowa County, WI, Jefferson County, WI, Juneau County, WI, Kewaunee County, WI, Lafayette County, WI, Manitowoc County, WI, Marquette County, WI, Monroe County, WI, Outagamie County, WI, Ozaukee County, WI, Richland County, WI, Sauk County, WI, Sheboygan County, WI, Vernon County, WI, Washington County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI

Warnings issued inside it

2 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 10, 6:56 PM CDTSevere Thunderstorm WarningARXGrant49 min
May 10, 7:01 PM CDTSevere Thunderstorm WarningMKXIowa, Lafayette74 min

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.0 hours before the alert went out and 144 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.

Skew-T log-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 2001-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2001-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 140 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2 J/kg
Mixed-layer CIN
-308 J/kg
Mixed-layer LCL
1050 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
140 m²/s²
0-3 km storm-relative helicity
201 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 9, 9:00 PM CDTSevere Thunderstorm WatchSPCAdair, Adams, Appanoose, Audubon, Boone, Cass and 29 more5 hr
May 9, 10:00 PM CDTSevere Thunderstorm WatchSPCAllamakee, Clayton, Fayette, Winneshiek5 hr
May 10, 11:00 AM CDTSevere Thunderstorm WatchSPCAdair, Allamakee, Audubon, Benton, Black Hawk, Boone and 47 more5 hr
May 10, 4:15 PM CDTSevere Thunderstorm WatchSPCAdair, Adams, Audubon, Benton, Black Hawk, Boone and 46 more6 hr
May 10, 5:30 PM CDTSevere Thunderstorm WatchSPCCass, Fremont, Mills, Montgomery, Page, Pottawattamie and 1 more5 hr
May 9, 7:30 PM CDTSevere Thunderstorm WatchSPCAshland, Barron, Bayfield, Burnett, Douglas, Iron and 5 more6 hr

Nearby

Severe Thunderstorm Watches in Wisconsin, 2001Severe Thunderstorm Watches in Iowa, 2001Every severe thunderstorm watch in 2001

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.