Alert archive / Minnesota / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 447

June 18, 20014 states

The Storm Prediction Center issued this severe thunderstorm watch at Jun 18, 2001, 6:00 PM CDT for 4 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 18, 2001, 6:00 PM CDT (23:00 UTC)
Expired
Jun 18, 2001, 11:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 46 counties

Buena Vista County, IA, Calhoun County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Emmet County, IA, Ida County, IA, Kossuth County, IA, O'Brien County, IA, Osceola County, IA, Palo Alto County, IA, Plymouth County, IA, Pocahontas County, IA, Sac County, IA, Sioux County, IA, Winnebago County, IA, Woodbury County, IA, Anoka County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Cottonwood County, MN, Dakota County, MN, Faribault County, MN, Hennepin County, MN, Jackson County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Nicollet County, MN, Nobles County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Steele County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Wright County, MN, Dakota County, NE, Saint Croix County, WI

The radar

The Sioux Falls radar (KFSD), 138 km from the middle of the area, began a volume at 23:03 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

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

IssuedProductOfficeCountiesLasted
Jun 18, 6:40 PM CDTSevere Thunderstorm WarningFSDCherokee, Ida, Woodbury35 min
Jun 18, 7:09 PM CDTTornado WarningFSDWoodbury36 min
Jun 18, 7:15 PM CDTSevere Thunderstorm WarningFSDBuena Vista, Cherokee, Clay45 min
Jun 18, 7:15 PM CDTSevere Thunderstorm WarningFSDIda, Woodbury45 min
Jun 18, 7:32 PM CDTSevere Thunderstorm WarningDMXKossuth38 min
Jun 18, 7:36 PM CDTSevere Thunderstorm WarningDMXEmmet19 min
Jun 18, 7:46 PM CDTSevere Thunderstorm WarningMPXFaribault44 min
Jun 18, 7:50 PM CDTSevere Thunderstorm WarningMPXWaseca40 min
Jun 18, 7:52 PM CDTSevere Thunderstorm WarningDMXPalo Alto38 min
Jun 18, 7:57 PM CDTSevere Thunderstorm WarningDMXPocahontas48 min
Jun 18, 8:00 PM CDTSevere Thunderstorm WarningFSDBuena Vista15 min
Jun 18, 8:06 PM CDTSevere Thunderstorm WarningDMXKossuth, Winnebago39 min
Jun 18, 8:17 PM CDTSevere Thunderstorm WarningMPXFreeborn, Steele58 min
Jun 18, 8:18 PM CDTSevere Thunderstorm WarningDMXKossuth42 min
Jun 18, 8:45 PM CDTSevere Thunderstorm WarningDMXWinnebago40 min
Jun 18, 9:44 PM CDTSevere Thunderstorm WarningDMXHancock, Winnebago31 min
Jun 18, 9:52 PM CDTSevere Thunderstorm WarningDMXHancock, Winnebago23 min
Jun 18, 10:11 PM CDTSevere Thunderstorm WarningMPXSteele19 min

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.0 hours before the alert went out and 186 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 12:00Z on 2001-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 476 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 12:00Z on 2001-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 258 square meters per square second.19395878Sfc1 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
476 J/kg
Mixed-layer CIN
-265 J/kg
Mixed-layer LCL
672 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
258 m²/s²
0-3 km storm-relative helicity
235 m²/s²
Significant tornado parameter
0.0
Supercell composite
-2.2

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 18, 1:30 AM CDTSevere Thunderstorm WatchSPCAllamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 23 more6 hr
Jun 18, 5:30 PM CDTSevere Thunderstorm WatchSPCCrawford, Harrison, Monona6 hr
Jun 18, 5:15 AM CDTSevere Thunderstorm WatchSPCAnoka, Benton, Big Stone, Blue Earth, Brown, Carver and 36 more6 hr
Jun 18, 3:00 PM CDTSevere Thunderstorm WatchSPCAitkin, Becker, Benton, Big Stone, Carlton, Cass and 17 more6 hr
Jun 18, 7:30 AM CDTSevere Thunderstorm WatchSPCBrown, Calumet, Door, Florence, Forest, Kewaunee and 15 more6 hr

Nearby

Severe Thunderstorm Watches in Minnesota, 2001Severe Thunderstorm Watches in Iowa, 2001Severe Thunderstorm Watches in Nebraska, 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; radar from the NEXRAD Level II archive.