Alert archive / Minnesota / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 616

July 12, 200444 counties in Minnesota; 10 counties in North Dakota; 15 counties in South Dakota

The Storm Prediction Center issued this severe thunderstorm watch at Jul 12, 2004, 9:50 PM CDT for 44 counties in Minnesota; 10 counties in North Dakota; 15 counties in South Dakota. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jul 12, 2004, 9:50 PM CDT (02:50 UTC)
Expired
Jul 13, 2004, 4:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 69 counties

Becker County, MN, Big Stone County, MN, Blue Earth County, MN, Brown County, MN, Chippewa County, MN, Clay County, MN, Cottonwood County, MN, Douglas County, MN, Faribault County, MN, Grant County, MN, Hubbard County, MN, Jackson County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Lincoln County, MN, Lyon County, MN, Mahnomen County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Morrison County, MN, Murray County, MN, Nicollet County, MN, Nobles County, MN, Norman County, MN, Otter Tail County, MN, Pipestone County, MN, Pope County, MN, Redwood County, MN, Renville County, MN, Rock County, MN, Sibley County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN, Waseca County, MN, Watonwan County, MN, Wilkin County, MN, Wright County, MN, Yellow Medicine County, MN, Barnes County, ND, Cass County, ND, Foster County, ND, Griggs County, ND, LaMoure County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Steele County, ND, Traill County, ND, Brookings County, SD, Clark County, SD, Codington County, SD, Day County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD, Kingsbury County, SD, Lake County, SD, Marshall County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Roberts County, SD

The radar

The Aberdeen radar (KABR), 207 km from the middle of the area, began a volume at 02:52 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

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

IssuedProductOfficeCountiesLasted
Jul 12, 9:53 PM CDTSevere Thunderstorm WarningFSDLincoln37 min
Jul 12, 9:59 PM CDTSevere Thunderstorm WarningFSDBrookings31 min
Jul 12, 10:02 PM CDTTornado WarningFGFClay58 min
Jul 12, 10:19 PM CDTTornado WarningFGFClay41 min
Jul 12, 10:33 PM CDTSevere Thunderstorm WarningFSDPipestone42 min
Jul 12, 10:43 PM CDTSevere Thunderstorm WarningFSDMoody32 min
Jul 12, 10:55 PM CDTTornado WarningFGFBecker, Otter Tail65 min
Jul 12, 10:59 PM CDTTornado WarningFGFClay46 min
Jul 12, 11:10 PM CDTSevere Thunderstorm WarningFSDRock35 min
Jul 12, 11:13 PM CDTSevere Thunderstorm WarningFSDPipestone32 min
Jul 12, 11:30 PM CDTSevere Thunderstorm WarningFSDLake30 min
Jul 12, 11:44 PM CDTSevere Thunderstorm WarningFSDRock46 min
Jul 13, 12:00 AM CDTTornado WarningFGFOtter Tail, Wadena60 min
Jul 13, 12:00 AM CDTSevere Thunderstorm WarningMPXMorrison, Todd90 min
Jul 13, 12:04 AM CDTSevere Thunderstorm WarningFSDNobles41 min
Jul 13, 12:28 AM CDTSevere Thunderstorm WarningFSDRock47 min
Jul 13, 1:04 AM CDTSevere Thunderstorm WarningMPXFaribault, Martin56 min
Jul 13, 1:24 AM CDTSevere Thunderstorm WarningMPXMorrison, Todd51 min
Jul 13, 2:36 AM CDTSevere Thunderstorm WarningMPXChippewa54 min
Jul 13, 3:19 AM CDTSevere Thunderstorm WarningMPXRedwood, Yellow Medicine56 min

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 00:00Z, 2.8 hours before the alert went out and 211 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 2004-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1267 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 2004-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 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
1267 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
1215 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
174 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 12, 9:19 PM CDTMesoscale DiscussionSPCAitkin, Anoka, Becker, Beltrami, Benton, Big Stone and 52 more116 min
Jul 12, 11:52 PM CDTMesoscale DiscussionSPCJackson, Nobles, Rock53 min
Jul 13, 1:20 AM CDTSevere Thunderstorm WatchSPCAitkin, Benton, Carlton, Cass, Chisago, Crow Wing and 6 more6 hr
Jul 13, 3:35 AM CDTMesoscale DiscussionSPCAnoka, Benton, Carver, Chippewa, Chisago, Hennepin and 20 more55 min
Jul 13, 4:21 AM CDTMesoscale DiscussionSPCFillmore, Freeborn, Mower, Olmsted54 min

Nearby

Severe Thunderstorm Watches in Minnesota, 2004Severe Thunderstorm Watches in South Dakota, 2004Severe Thunderstorm Watches in North Dakota, 2004Every severe thunderstorm watch in 2004

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.