Alert archive / Minnesota / Severe Thunderstorm Watches in 2005

Severe Thunderstorm Watch 704

August 9, 200517 counties in Minnesota; 8 counties in North Dakota; 7 counties in South Dakota

The Storm Prediction Center issued this severe thunderstorm watch at Aug 9, 2005, 12:50 AM CDT for 17 counties in Minnesota; 8 counties in North Dakota; 7 counties in South Dakota. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Aug 9, 2005, 12:50 AM CDT (05:50 UTC)
Expired
Aug 9, 2005, 7:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 32 counties

Aitkin County, MN, Benton County, MN, Carlton County, MN, Crow Wing County, MN, Douglas County, MN, Grant County, MN, Kanabec County, MN, Mille Lacs County, MN, Morrison County, MN, Otter Tail County, MN, Pine County, MN, Pope County, MN, Stevens County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN, Wilkin County, MN, Dickey County, ND, Emmons County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Brown County, SD, Campbell County, SD, Edmunds County, SD, Marshall County, SD, McPherson County, SD, Roberts County, SD, Walworth County, SD

The radar

The Aberdeen radar (KABR), 119 km from the middle of the area, began a volume at 05:51 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
Aug 9, 12:51 AM CDTTornado WarningBISEmmons39 min
Aug 9, 12:58 AM CDTSevere Thunderstorm WarningFGFOtter Tail62 min
Aug 9, 1:02 AM CDTSevere Thunderstorm WarningFGFRansom32 min
Aug 9, 1:05 AM CDTSevere Thunderstorm WarningFGFWilkin40 min
Aug 9, 1:13 AM CDTSevere Thunderstorm WarningMPXDouglas39 min
Aug 9, 3:31 AM CDTSevere Thunderstorm WarningMPXDouglas41 min
Aug 9, 3:48 AM CDTSevere Thunderstorm WarningMPXTodd57 min
Aug 9, 4:15 AM CDTSevere Thunderstorm WarningMPXMorrison60 min
Aug 9, 4:32 AM CDTSevere Thunderstorm WarningDLHCrow Wing59 min
Aug 9, 5:11 AM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs44 min
Aug 9, 5:16 AM CDTSevere Thunderstorm WarningDLHAitkin57 min
Aug 9, 5:24 AM CDTSevere Thunderstorm WarningDLHCarlton, Pine66 min
Aug 9, 6:30 AM CDTSevere Thunderstorm WarningDLHCarlton30 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

Aberdeen, SD (KABR), launched 00:00Z, 5.8 hours before the alert went out and 170 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, Aberdeen, SD at 00:00Z on 2005-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1034 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, Aberdeen, SD at 00:00Z on 2005-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
1034 J/kg
Mixed-layer CIN
-292 J/kg
Mixed-layer LCL
2393 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
206 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 8, 11:08 PM CDTMesoscale DiscussionSPCBecker, Clay, Wilkin97 min
Aug 9, 2:36 AM CDTMesoscale DiscussionSPCAitkin, Benton, Carlton, Crow Wing, Douglas, Grant and 10 more114 min
Aug 9, 5:05 AM CDTMesoscale DiscussionSPCCarlton, Pine115 min
Aug 9, 11:25 AM CDTMesoscale DiscussionSPCBlue Earth, Brown, Cottonwood, Faribault, Jackson, Le Sueur and 11 more95 min
Aug 9, 11:51 AM CDTMesoscale DiscussionSPCAnoka, Benton, Carver, Chisago, Hennepin, Isanti and 11 more84 min
Aug 9, 1:45 PM CDTSevere Thunderstorm WatchSPCDodge, Fillmore, Goodhue, Houston, Mower, Olmsted and 3 more7 hr
Aug 9, 2:20 PM CDTSevere Thunderstorm WatchSPCBlue Earth, Brown, Carver, Cottonwood, Dakota, Dodge and 16 more7 hr
Aug 9, 5:26 PM CDTMesoscale DiscussionSPCFillmore, Houston, Mower, Winona94 min

Nearby

Severe Thunderstorm Watches in Minnesota, 2005Severe Thunderstorm Watches in North Dakota, 2005Severe Thunderstorm Watches in South Dakota, 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.