Alert archive / Minnesota / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 241

May 7, 200046 counties in Minnesota; 7 counties in Wisconsin

The Storm Prediction Center issued this severe thunderstorm watch at May 7, 2000, 9:00 PM CDT for 46 counties in Minnesota; 7 counties in Wisconsin. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 7, 2000, 9:00 PM CDT (02:00 UTC)
Expired
May 8, 2000, 3:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 53 counties

Anoka County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chippewa County, MN, Chisago County, MN, Cottonwood County, MN, Dakota County, MN, Dodge County, MN, Faribault County, MN, Fillmore County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Jackson County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Lincoln County, MN, Lyon County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Mower County, MN, Murray County, MN, Nicollet County, MN, Nobles County, MN, Olmsted County, MN, Pipestone County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Rock County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Steele County, MN, Swift County, MN, Wabasha County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Winona County, MN, Wright County, MN, Yellow Medicine County, MN, Barron County, WI, Buffalo County, WI, Dunn County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 77 km from the middle of the area, began a volume at 02:02 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

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

IssuedProductOfficeCountiesLasted
May 7, 9:08 PM CDTTornado WarningMPXKandiyohi37 min
May 7, 9:27 PM CDTSevere Thunderstorm WarningMPXMeeker48 min
May 7, 9:44 PM CDTTornado WarningMPXMeeker31 min
May 7, 10:14 PM CDTTornado WarningMPXMeeker, Stearns46 min
May 7, 10:30 PM CDTSevere Thunderstorm WarningMPXWright60 min
May 7, 10:33 PM CDTTornado WarningMPXWright57 min
May 7, 10:50 PM CDTTornado WarningFSDLyon25 min
May 7, 10:58 PM CDTSevere Thunderstorm WarningMPXBenton, Sherburne47 min
May 8, 1:08 AM CDTSevere Thunderstorm WarningMPXCarver, Sibley52 min

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 2.0 hours before the alert went out and 75 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 2000-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 998 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 2000-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 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
998 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
1468 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
212 m²/s²
Significant tornado parameter
0.5
Supercell composite
6.0

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 8, 7:30 AM CDTSevere Thunderstorm WatchSPCDane, Green, Iowa, Jefferson, Kenosha, Lafayette and 5 more5 hr

Nearby

Severe Thunderstorm Watches in Minnesota, 2000Severe Thunderstorm Watches in Wisconsin, 2000Every severe thunderstorm watch in 2000

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.