Alert archive / Minnesota / Mesoscale Discussions in 2003

Mesoscale Discussion 1497

June 24, 200337 counties in Minnesota; 5 counties in Wisconsin

The Storm Prediction Center issued this mesoscale discussion at Jun 24, 2003, 7:09 PM CDT for 37 counties in Minnesota; 5 counties in Wisconsin. It was in force for 66 min.

The area

The outline as issued.

The facts

Issued
Jun 24, 2003, 7:09 PM CDT (00:09 UTC)
Expired
Jun 24, 2003, 8:15 PM CDT
In force
66 min
Issued by
the Storm Prediction Center
All 42 counties

Aitkin County, MN, Anoka County, MN, Benton County, MN, Big Stone County, MN, Carlton County, MN, Carver County, MN, Chippewa County, MN, Chisago County, MN, Crow Wing County, MN, Dakota County, MN, Douglas County, MN, Grant County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Nicollet County, MN, Pine County, MN, Pope County, MN, Ramsey County, MN, Renville County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Washington County, MN, Wright County, MN, Yellow Medicine County, MN, Burnett County, WI, Dunn County, WI, Pierce County, WI, Polk County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 90 km from the middle of the area, began a volume at 00:09 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.

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.2 hours before the alert went out and 89 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 2003-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5332 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 2003-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 171 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
5332 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
859 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
171 m²/s²
0-3 km storm-relative helicity
288 m²/s²
Significant tornado parameter
7.4
Supercell composite
34.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 24, 7:15 PM CDTSevere Thunderstorm WatchSPCBig Stone, Clay, Traverse, Wilkin6 hr
Jun 24, 8:15 PM CDTTornado WatchSPCAnoka, Benton, Brown, Carver, Chippewa, Chisago and 35 more6 hr
Jun 24, 8:35 PM CDTTornado WatchSPCCottonwood, Lincoln, Lyon, Murray, Nobles, Pipestone and 2 more5 hr
Jun 24, 9:52 PM CDTMesoscale DiscussionSPCBig Stone, Clay, Traverse, Wilkin83 min
Jun 24, 10:27 PM CDTMesoscale DiscussionSPCAnoka, Blue Earth, Brown, Carver, Chippewa, Chisago and 31 more93 min
Jun 24, 10:55 PM CDTTornado WatchSPCBlue Earth, Dodge, Faribault, Freeborn, Jackson, Martin and 7 more5 hr
Jun 25, 12:37 AM CDTMesoscale DiscussionSPCFillmore, Houston, Winona113 min
Jun 25, 11:38 AM CDTMesoscale DiscussionSPCAnoka, Blue Earth, Carver, Dakota, Faribault, Freeborn and 15 more2 hr
Jun 25, 11:50 AM CDTMesoscale DiscussionSPCColumbia, Dane, Dodge, Grant, Green, Green Lake and 8 more115 min
Jun 25, 12:05 PM CDTSevere Thunderstorm WatchSPCColumbia, Crawford, Dane, Dodge, Fond du Lac, Grant and 14 more6 hr
Jun 25, 1:42 PM CDTMesoscale DiscussionSPCBrown, Calumet, Columbia, Dodge, Florence, Fond du Lac and 11 more2 hr
Jun 25, 2:10 PM CDTSevere Thunderstorm WatchSPCBrown, Calumet, Door, Florence, Forest, Kewaunee and 11 more5 hr
Jun 25, 2:43 PM CDTMesoscale DiscussionSPCColumbia, Dane, Dodge, Green, Iowa, Jefferson and 4 more2 hr
Jun 25, 5:14 PM CDTMesoscale DiscussionSPCBrown, Calumet, Door, Florence, Forest, Kewaunee and 10 more91 min

Nearby

Mesoscale Discussions in Minnesota, 2003Mesoscale Discussions in Wisconsin, 2003Every mesoscale discussion in 2003

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.