Alert archive / Minnesota / Mesoscale Discussions in 2005

Mesoscale Discussion 1402

June 20, 200536 counties in Minnesota; 9 counties in South Dakota; Pierce County, Wisconsin

The Storm Prediction Center issued this mesoscale discussion at Jun 20, 2005, 12:59 PM CDT for 36 counties in Minnesota; 9 counties in South Dakota; Pierce County, Wisconsin. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued
Jun 20, 2005, 12:59 PM CDT (17:59 UTC)
Expired
Jun 20, 2005, 2:30 PM CDT
In force
91 min
Issued by
the Storm Prediction Center
All 46 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, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Lincoln County, MN, Lyon County, MN, McLeod County, MN, Meeker County, MN, Murray County, MN, Nicollet County, MN, Pipestone 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, Swift County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Wright County, MN, Yellow Medicine County, MN, Brookings County, SD, Clark County, SD, Codington County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD, Kingsbury County, SD, Lake County, SD, Moody County, SD, Pierce County, WI

The radar

The Minneapolis radar (KMPX), 138 km from the middle of the area, began a volume at 17:59 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 12:00Z, 6.0 hours before the alert went out and 135 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 2005-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 93 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 2005-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 129 square meters per square second.1939Sfc1 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
93 J/kg
Mixed-layer CIN
-433 J/kg
Mixed-layer LCL
1305 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
129 m²/s²
0-3 km storm-relative helicity
156 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
Jun 19, 7:02 PM CDTMesoscale DiscussionSPCBecker, Beltrami, Clay, Clearwater, Koochiching, Lake of the Woods and 7 more118 min
Jun 19, 8:50 PM CDTSevere Thunderstorm WatchSPCKoochiching, Saint Louis5 hr
Jun 20, 5:20 AM CDTSevere Thunderstorm WatchSPCBecker, Clay, Douglas, Grant, Otter Tail, Traverse and 1 more5 hr
Jun 20, 7:39 AM CDTMesoscale DiscussionSPCBecker, Clay, Douglas, Grant, Mahnomen, Norman and 4 more96 min
Jun 20, 9:19 AM CDTMesoscale DiscussionSPCBecker, Clay, Douglas, Grant, Mahnomen, Norman and 4 more56 min
Jun 20, 10:42 AM CDTMesoscale DiscussionSPCBecker, Clay, Douglas, Grant, Mahnomen, Norman and 4 more63 min
Jun 20, 10:50 AM CDTSevere Thunderstorm WatchSPCAnoka, Benton, Carver, Chippewa, Dakota, Douglas and 17 more5 hr
Jun 20, 1:25 PM CDTSevere Thunderstorm WatchSPCBlue Earth, Brown, Cottonwood, Faribault, Freeborn, Jackson and 17 more7 hr
Jun 19, 7:55 PM CDTSevere Thunderstorm WatchSPCButte, Harding, Lawrence7 hr
Jun 19, 11:43 PM CDTMesoscale DiscussionSPCLawrence2 hr
Jun 20, 2:17 AM CDTMesoscale DiscussionSPCButte, Corson, Harding, Lawrence, Meade, Perkins and 1 more58 min
Jun 20, 3:00 AM CDTSevere Thunderstorm WatchSPCButte, Corson, Harding, Perkins, Ziebach5 hr
Jun 20, 4:40 AM CDTMesoscale DiscussionSPCBrown, Campbell, Corson, Dewey, Edmunds, Harding and 5 more95 min
Jun 20, 2:13 PM CDTMesoscale DiscussionSPCAurora, Bennett, Brule, Buffalo, Charles Mix, Douglas and 3 more2 hr
Jun 20, 3:45 PM CDTSevere Thunderstorm WatchSPCClay, Lincoln, Union6 hr
Jun 20, 4:09 PM CDTMesoscale DiscussionSPCLawrence, Pennington2 hr

Nearby

Mesoscale Discussions in Minnesota, 2005Mesoscale Discussions in South Dakota, 2005Mesoscale Discussions in Wisconsin, 2005Every mesoscale discussion in 2005

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.