Alert archive / Minnesota / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 610

July 12, 200425 counties in Minnesota; 7 counties in North Dakota

The Storm Prediction Center issued this severe thunderstorm watch at Jul 12, 2004, 1:55 AM CDT for 25 counties in Minnesota; 7 counties in North Dakota. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jul 12, 2004, 1:55 AM CDT (06:55 UTC)
Expired
Jul 12, 2004, 7:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 32 counties

Becker County, MN, Beltrami County, MN, Cass County, MN, Clay County, MN, Clearwater County, MN, Crow Wing County, MN, Douglas County, MN, Grant County, MN, Hubbard County, MN, Itasca County, MN, Kittson County, MN, Koochiching County, MN, Lake of the Woods County, MN, Mahnomen County, MN, Marshall County, MN, Morrison County, MN, Norman County, MN, Otter Tail County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Todd County, MN, Wadena County, MN, Wilkin County, MN, Cass County, ND, Grand Forks County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Steele County, ND, Traill County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 102 km from the middle of the area, began a volume at 06:55 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

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

IssuedProductOfficeCountiesLasted
Jul 12, 4:23 AM CDTSevere Thunderstorm WarningFGFNorman37 min
Jul 12, 4:36 AM CDTSevere Thunderstorm WarningFGFClay39 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, 6.9 hours before the alert went out and 305 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 2004-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2835 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 2004-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
2835 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
1224 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
43 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
Jul 12, 1:29 AM CDTMesoscale DiscussionSPCBecker, Beltrami, Clay, Clearwater, Kittson, Mahnomen and 7 more91 min
Jul 12, 3:13 AM CDTMesoscale DiscussionSPCBecker, Beltrami, Cass, Clay, Clearwater, Crow Wing and 19 more92 min
Jul 12, 4:53 AM CDTMesoscale DiscussionSPCBecker, Cass, Clay, Clearwater, Crow Wing, Douglas and 9 more67 min
Jul 12, 8:53 AM CDTMesoscale DiscussionSPCBig Stone, Grant, Lac qui Parle, Lincoln, Pipestone, Rock and 2 more2 hr
Jul 12, 10:55 AM CDTSevere Thunderstorm WatchSPCBig Stone, Chippewa, Kandiyohi, Lac qui Parle, Lincoln, Lyon and 5 more5 hr
Jul 12, 6:20 PM CDTTornado WatchSPCJackson, Nobles, Rock7 hr
Jul 11, 7:20 PM CDTSevere Thunderstorm WatchSPCAdams, Billings, Bottineau, Bowman, Burke, Divide and 16 more8 hr
Jul 11, 9:19 PM CDTMesoscale DiscussionSPCAdams, Billings, Burke, Divide, Dunn, Golden Valley and 12 more116 min
Jul 11, 9:40 PM CDTSevere Thunderstorm WatchSPCGolden Valley5 hr
Jul 11, 11:34 PM CDTMesoscale DiscussionSPCAdams, Benson, Billings, Bottineau, Burke, Burleigh and 30 more116 min
Jul 11, 11:50 PM CDTSevere Thunderstorm WatchSPCBarnes, Benson, Burleigh, Cavalier, Dickey, Eddy and 17 more6 hr

Nearby

Severe Thunderstorm Watches in Minnesota, 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.