Alert archive / North Dakota / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 719

August 8, 200411 counties in Minnesota; 18 counties in North Dakota

The Storm Prediction Center issued this severe thunderstorm watch at Aug 8, 2004, 12:55 PM CDT for 11 counties in Minnesota; 18 counties in North Dakota. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Aug 8, 2004, 12:55 PM CDT (17:55 UTC)
Expired
Aug 8, 2004, 6:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 29 counties

Becker County, MN, Clay County, MN, Kittson County, MN, Mahnomen County, MN, Marshall County, MN, Norman County, MN, Otter Tail County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Wilkin County, MN, Barnes County, ND, Cass County, ND, Cavalier County, ND, Eddy County, ND, Foster County, ND, Grand Forks County, ND, Griggs County, ND, LaMoure County, ND, Nelson County, ND, Pembina County, ND, Ramsey County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Steele County, ND, Towner County, ND, Traill County, ND, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 36 km from the middle of the area, began a volume at 17:57 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

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

IssuedProductOfficeCountiesLasted
Aug 8, 3:34 PM CDTSevere Thunderstorm WarningFGFEddy, Griggs41 min
Aug 8, 3:43 PM CDTTornado WarningFGFKittson, Roseau47 min
Aug 8, 4:02 PM CDTSevere Thunderstorm WarningFGFBecker, Clay43 min
Aug 8, 4:09 PM CDTTornado WarningFGFPembina51 min
Aug 8, 4:16 PM CDTSevere Thunderstorm WarningFGFMahnomen, Norman44 min
Aug 8, 4:48 PM CDTSevere Thunderstorm WarningFGFBeltrami, Clearwater, Pennington, Polk42 min
Aug 8, 4:58 PM CDTTornado WarningFGFKittson32 min
Aug 8, 4:59 PM CDTSevere Thunderstorm WarningFGFMahnomen16 min
Aug 8, 5:23 PM CDTSevere Thunderstorm WarningFGFWalsh52 min
Aug 8, 5:29 PM CDTTornado WarningFGFKittson46 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 12:00Z, 5.9 hours before the alert went out and 294 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 12:00Z on 2004-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2004-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
487 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
7 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
Aug 8, 12:17 PM CDTMesoscale DiscussionSPCAnoka, Blue Earth, Carver, Dakota, Dodge, Faribault and 19 more58 min
Aug 8, 12:37 PM CDTMesoscale DiscussionSPCBecker, Clay, Douglas, Grant, Kittson, Mahnomen and 8 more83 min
Aug 8, 4:02 PM CDTMesoscale DiscussionSPCBecker, Beltrami, Cass, Clay, Clearwater, Hubbard and 11 more88 min
Aug 8, 4:35 PM CDTSevere Thunderstorm WatchSPCBecker, Beltrami, Cass, Clay, Clearwater, Crow Wing and 17 more5 hr
Aug 8, 5:03 PM CDTMesoscale DiscussionSPCAnoka, Benton, Blue Earth, Carver, Chisago, Dakota and 31 more117 min
Aug 8, 5:20 PM CDTSevere Thunderstorm WatchSPCAnoka, Benton, Brown, Carver, Chisago, Dakota and 21 more7 hr

Nearby

Severe Thunderstorm Watches in North Dakota, 2004Severe Thunderstorm Watches in Minnesota, 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.