Alert archive / Minnesota / Mesoscale Discussions in 2003

Mesoscale Discussion 2244

August 24, 200311 counties in Iowa; 14 counties in Minnesota; 5 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Aug 24, 2003, 8:16 PM CDT for 11 counties in Iowa; 14 counties in Minnesota; 5 counties in South Dakota. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued
Aug 24, 2003, 8:16 PM CDT (01:16 UTC)
Expired
Aug 24, 2003, 10:15 PM CDT
In force
119 min
Issued by
the Storm Prediction Center
All 30 counties

Clay County, IA, Dickinson County, IA, Emmet County, IA, Kossuth County, IA, Lyon County, IA, Mitchell County, IA, O'Brien County, IA, Osceola County, IA, Sioux County, IA, Winnebago County, IA, Worth County, IA, Blue Earth County, MN, Cottonwood County, MN, Faribault County, MN, Freeborn County, MN, Jackson County, MN, Martin County, MN, Mower County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Steele County, MN, Waseca County, MN, Watonwan County, MN, Lincoln County, SD, McCook County, SD, Minnehaha County, SD, Turner County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 106 km from the middle of the area, began a volume at 01:16 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.3 hours before the alert went out and 204 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 2003-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 55 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 2003-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
55 J/kg
Mixed-layer CIN
-314 J/kg
Mixed-layer LCL
2539 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
32 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

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
Aug 25, 5:20 PM CDTSevere Thunderstorm WatchSPCAllamakee, Black Hawk, Bremer, Buchanan, Buena Vista, Butler and 26 more6 hr
Aug 25, 11:33 AM CDTMesoscale DiscussionSPCAitkin, Anoka, Benton, Carlton, Chisago, Crow Wing and 13 more117 min
Aug 25, 4:43 PM CDTMesoscale DiscussionSPCBeltrami, Clearwater, Itasca, Kittson, Koochiching, Lake of the Woods and 5 more62 min
Aug 25, 5:00 PM CDTTornado WatchSPCBeltrami, Clearwater, Kittson, Lake of the Woods, Marshall, Pennington and 3 more5 hr
Aug 25, 6:21 PM CDTMesoscale DiscussionSPCBig Stone, Lac qui Parle, Lincoln, Lyon, Traverse, Wilkin and 1 more54 min

Nearby

Mesoscale Discussions in Minnesota, 2003Mesoscale Discussions in Iowa, 2003Mesoscale Discussions in South Dakota, 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.