Alert archive / Wisconsin / Tornado Watches in 1999

Tornado Watch 397

June 5, 199917 counties in Iowa; 5 counties in Minnesota; 24 counties in Wisconsin

The Storm Prediction Center issued this tornado watch at Jun 5, 1999, 9:45 PM CDT for 17 counties in Iowa; 5 counties in Minnesota; 24 counties in Wisconsin. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Jun 5, 1999, 9:45 PM CDT (02:45 UTC)
Expired
Jun 6, 1999, 2:00 AM CDT
In force
4 hr
Issued by
the Storm Prediction Center
All 46 counties

Allamakee County, IA, Bremer County, IA, Butler County, IA, Cerro Gordo County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Franklin County, IA, Hamilton County, IA, Hancock County, IA, Howard County, IA, Mitchell County, IA, Winnebago County, IA, Winneshiek County, IA, Worth County, IA, Wright County, IA, Fillmore County, MN, Freeborn County, MN, Houston County, MN, Mower County, MN, Winona County, MN, Adams County, WI, Brown County, WI, Calumet County, WI, Columbia County, WI, Crawford County, WI, Dodge County, WI, Fond du Lac County, WI, Green Lake County, WI, Juneau County, WI, Kewaunee County, WI, La Crosse 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

The radar

The La Crosse radar (KARX), 31 km from the middle of the area, began a volume at 02:45 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.

IssuedProductOfficeCountiesLasted
Jun 5, 9:52 PM CDTSevere Thunderstorm WarningARXWinona68 min
Jun 5, 9:55 PM CDTSevere Thunderstorm WarningARXFillmore, Mower65 min
Jun 5, 10:05 PM CDTTornado WarningMPXFreeborn, Steele25 min
Jun 5, 10:52 PM CDTSevere Thunderstorm WarningARXFillmore53 min
Jun 5, 11:08 PM CDTSevere Thunderstorm WarningARXWinona62 min
Jun 5, 11:27 PM CDTSevere Thunderstorm WarningARXHouston63 min

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 2.8 hours before the alert went out and 229 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, Minneapolis, MN at 00:00Z on 1999-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1578 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, Minneapolis, MN at 00:00Z on 1999-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 square meters per square second.1939587897Sfc1 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
1578 J/kg
Mixed-layer CIN
-164 J/kg
Mixed-layer LCL
1452 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
304 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.3

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
Jun 5, 9:00 PM CDTTornado WatchSPCClay, Dickinson, Emmet, Lyon, O'Brien, Osceola and 3 more5 hr
Jun 6, 12:45 PM CDTSevere Thunderstorm WatchSPCAllamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 21 more5 hr
Jun 6, 2:00 PM CDTTornado WatchSPCAdair, Adams, Audubon, Boone, Buena Vista, Calhoun and 38 more6 hr
Jun 6, 6:00 PM CDTTornado WatchSPCAdair, Adams, Allamakee, Appanoose, Audubon, Benton and 55 more6 hr
Jun 5, 7:45 PM CDTTornado WatchSPCAnoka, Blue Earth, Carver, Chisago, Dakota, Dodge and 20 more6 hr
Jun 6, 2:00 AM CDTSevere Thunderstorm WatchSPCWabasha5 hr
Jun 6, 2:00 AM CDTSevere Thunderstorm WatchSPCBecker, Benton, Big Stone, Cass, Clay, Crow Wing and 20 more5 hr
Jun 6, 12:30 PM CDTTornado WatchSPCBecker, Beltrami, Cass, Clay, Clearwater, Hubbard and 10 more6 hr
Jun 6, 2:00 PM CDTTornado WatchSPCAitkin, Anoka, Benton, Blue Earth, Brown, Carver and 32 more5 hr
Jun 6, 5:15 PM CDTTornado WatchSPCAitkin, Anoka, Beltrami, Benton, Blue Earth, Carlton and 44 more7 hr
Jun 6, 2:30 PM CDTSevere Thunderstorm WatchSPCBrown, Calumet, Columbia, Dane, Dodge, Door and 21 more6 hr
Jun 6, 4:00 PM CDTSevere Thunderstorm WatchSPCAshland, Barron, Bayfield, Door, Florence, Forest and 11 more6 hr

Nearby

Tornado Watches in Wisconsin, 1999Tornado Watches in Iowa, 1999Tornado Watches in Minnesota, 1999Every tornado watch in 1999

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.