Alert archive / Minnesota / Severe Thunderstorm Watches in 2005

Severe Thunderstorm Watch 504

June 20, 200523 counties in Minnesota

The Storm Prediction Center issued this severe thunderstorm watch at Jun 20, 2005, 10:50 AM CDT for 23 counties in Minnesota. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 20, 2005, 10:50 AM CDT (15:50 UTC)
Expired
Jun 20, 2005, 4:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 23 counties

Anoka County, MN, Benton County, MN, Carver County, MN, Chippewa County, MN, Dakota County, MN, Douglas County, MN, Hennepin County, MN, Isanti County, MN, Kandiyohi County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Pope County, MN, Ramsey County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Todd County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 106 km from the middle of the area, began a volume at 15:54 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

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

IssuedProductOfficeCountiesLasted
Jun 20, 11:11 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Pope, Stearns, Swift64 min
Jun 20, 11:28 AM CDTSevere Thunderstorm WarningMPXMorrison62 min
Jun 20, 11:33 AM CDTSevere Thunderstorm WarningMPXChippewa57 min
Jun 20, 11:57 AM CDTSevere Thunderstorm WarningMPXBenton, Mille Lacs, Sherburne63 min
Jun 20, 12:11 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker, Stearns71 min
Jun 20, 12:27 PM CDTSevere Thunderstorm WarningMPXHennepin, Wright63 min
Jun 20, 12:49 PM CDTSevere Thunderstorm WarningMPXAnoka, Chisago, Isanti, Kanabec56 min
Jun 20, 12:56 PM CDTSevere Thunderstorm WarningMPXMcLeod, Renville, Sibley64 min
Jun 20, 1:29 PM CDTFlash Flood WarningMPXAnoka, Carver, Dakota, Hennepin, Ramsey, Scott and 1 more3 hr
Jun 20, 1:29 PM CDTSevere Thunderstorm WarningMPXAnoka, Carver, Chisago, Dakota, Hennepin, Ramsey and 3 more61 min
Jun 20, 1:55 PM CDTSevere Thunderstorm WarningMPXNicollet, Renville, Sibley65 min
Jun 20, 2:29 PM CDTSevere Thunderstorm WarningMPXGoodhue, Le Sueur, Rice61 min
Jun 20, 3:11 PM CDTFlash Flood WarningMPXBlue Earth, Goodhue, Le Sueur, Nicollet, Rice3 hr

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 3.8 hours before the alert went out and 104 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

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, 12:59 PM CDTMesoscale DiscussionSPCAnoka, Blue Earth, Brown, Carver, Chippewa, Chisago and 30 more91 min
Jun 20, 1:25 PM CDTSevere Thunderstorm WatchSPCBlue Earth, Brown, Cottonwood, Faribault, Freeborn, Jackson and 17 more7 hr

Nearby

Severe Thunderstorm Watches in Minnesota, 2005Every severe thunderstorm watch 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.