Alert archive / Minnesota / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 601

July 10, 200412 counties in Minnesota; 6 counties in North Dakota

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

The area

The outline as issued.

The facts

Issued
Jul 10, 2004, 9:10 PM CDT (02:10 UTC)
Expired
Jul 11, 2004, 3:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center

Counties Becker County, MN, Beltrami County, MN, Clay County, MN, Clearwater County, MN, Hubbard County, MN, Mahnomen County, MN, Norman County, MN, Otter Tail County, MN, Polk County, MN, Red Lake County, MN, Wadena County, MN, Wilkin County, MN, Cass 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), 74 km from the middle of the area, began a volume at 02:13 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

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

IssuedProductOfficeCountiesLasted
Jul 10, 10:27 PM CDTSevere Thunderstorm WarningFGFClay48 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

International Fa, MN (KINL), launched 00:00Z, 2.2 hours before the alert went out and 285 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, International Fa, MN at 00:00Z on 2004-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 767 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, International Fa, MN at 00:00Z on 2004-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 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
767 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
1189 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.3

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 10, 8:51 PM CDTMesoscale DiscussionSPCBecker, Clay, Grant, Mahnomen, Norman, Otter Tail and 2 more54 min
Jul 10, 11:19 PM CDTMesoscale DiscussionSPCBecker, Big Stone, Chippewa, Clay, Clearwater, Douglas and 14 more116 min
Jul 10, 7:56 PM CDTMesoscale DiscussionSPCBillings, Bowman, Golden Valley, McKenzie, Slope94 min
Jul 11, 12:40 AM CDTMesoscale DiscussionSPCBillings, Bowman, Golden Valley, Slope, Stark35 min
Jul 11, 12:48 PM CDTMesoscale DiscussionSPCAdams, Billings, Bottineau, Bowman, Burke, Divide and 17 more117 min
Jul 11, 6:34 PM CDTMesoscale DiscussionSPCAdams, Billings, Bottineau, Bowman, Burke, Burleigh and 19 more86 min

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.