Alert archive / North Dakota / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 671

August 14, 200112 counties in Minnesota; 13 counties in North Dakota

The Storm Prediction Center issued this severe thunderstorm watch at Aug 14, 2001, 2:30 PM CDT for 12 counties in Minnesota; 13 counties in North Dakota. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Aug 14, 2001, 2:30 PM CDT (19:30 UTC)
Expired
Aug 14, 2001, 9:00 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
All 25 counties

Beltrami County, MN, Clearwater County, MN, Hubbard County, MN, Itasca County, MN, Koochiching County, MN, Mahnomen County, MN, Marshall County, MN, Norman County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Saint Louis County, MN, Benson County, ND, Cavalier County, ND, Eddy County, ND, Foster County, ND, Grand Forks County, ND, Griggs County, ND, Nelson County, ND, Pembina County, ND, Ramsey County, ND, Steele County, ND, Towner County, ND, Traill County, ND, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 88 km from the middle of the area, began a volume at 19:30 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

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

IssuedProductOfficeCountiesLasted
Aug 14, 2:59 PM CDTSevere Thunderstorm WarningFGFCavalier46 min
Aug 14, 3:40 PM CDTSevere Thunderstorm WarningFGFRamsey35 min
Aug 14, 3:45 PM CDTSevere Thunderstorm WarningFGFCavalier, Pembina45 min
Aug 14, 4:07 PM CDTSevere Thunderstorm WarningFGFWalsh38 min
Aug 14, 4:28 PM CDTSevere Thunderstorm WarningFGFKittson, Marshall47 min
Aug 14, 4:53 PM CDTSevere Thunderstorm WarningFGFWalsh37 min
Aug 14, 5:15 PM CDTSevere Thunderstorm WarningFGFEddy45 min
Aug 14, 5:18 PM CDTSevere Thunderstorm WarningFGFMarshall42 min
Aug 14, 5:38 PM CDTFlash Flood WarningFGFKittson, Marshall6 hr
Aug 14, 5:39 PM CDTSevere Thunderstorm WarningFGFPolk51 min
Aug 14, 5:45 PM CDTSevere Thunderstorm WarningFGFPennington45 min
Aug 14, 6:03 PM CDTSevere Thunderstorm WarningFGFRed Lake42 min
Aug 14, 6:20 PM CDTSevere Thunderstorm WarningDLHKoochiching55 min
Aug 14, 6:29 PM CDTSevere Thunderstorm WarningFGFPolk46 min
Aug 14, 6:33 PM CDTSevere Thunderstorm WarningFGFBeltrami, Clearwater, Pennington42 min
Aug 14, 6:40 PM CDTSevere Thunderstorm WarningFGFGriggs50 min
Aug 14, 7:07 PM CDTSevere Thunderstorm WarningDLHSaint Louis53 min
Aug 14, 7:16 PM CDTSevere Thunderstorm WarningFGFBeltrami29 min
Aug 14, 7:20 PM CDTSevere Thunderstorm WarningDLHKoochiching55 min
Aug 14, 8:43 PM CDTSevere Thunderstorm WarningFGFBenson47 min
Aug 14, 8:51 PM CDTSevere Thunderstorm WarningFGFEddy39 min

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 7.5 hours before the alert went out and 242 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 2001-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2001-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 161 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1464 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
161 m²/s²
0-3 km storm-relative helicity
244 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

Nearby

Severe Thunderstorm Watches in North Dakota, 2001Severe Thunderstorm Watches in Minnesota, 2001Every severe thunderstorm watch in 2001

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.