Alert archive / North Dakota / Tornado Warnings in 2001

Tornado Warning 32, NWS Grand Forks, ND

July 17, 2001Ransom County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jul 17, 2001, 7:03 PM CDT for Ransom County, North Dakota. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jul 17, 2001, 7:03 PM CDT (00:03 UTC)
Expired: Jul 17, 2001, 7:45 PM CDT
In force: 42 min
Issued by: NWS Grand Forks, ND
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Ransom County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 108 km from the middle of the area, began a volume at 00:06 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 17, 7:00 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 0.1 hours before the alert went out and 199 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2561 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 2319 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 132 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 12.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

904 
WFUS53 KFGF 180003
TORFAR
NDC073-180045-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
703 PM CDT TUE JUL 17 2001

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...

  NORTHEASTERN RANSOM COUNTY IN SOUTHEAST NORTH DAKOTA.

* UNTIL 745 PM CDT.

* AT 701 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO OVER SHELDON...OR ABOUT 35 MILES SOUTHEAST OF VALLEY
  CITY...MOVEMENT WAS TO THE SOUTHEAST AT 10 MPH.

* THE TORNADO WILL BE NEAR...

  VENLO AT 715 PM CDT.
  SHELDON AT 720 PM CDT.

THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH OF THIS TORNADO
ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING.

LAT...LON 4663 9739 4656 9764 4640 9735 4656 9730


$$
DJK
08

NNNN

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 17, 7:27 PM CDT	Tornado Warning	FGF	Richland	48 min
Jul 17, 7:41 PM CDT	Severe Thunderstorm Warning	FGF	Ramsey, Walsh	49 min
Jul 17, 7:47 PM CDT	Severe Thunderstorm Warning	FGF	Ransom	43 min
Jul 17, 8:10 PM CDT	Tornado Warning	FGF	Richland	35 min
Jul 17, 8:13 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass	47 min
Jul 17, 8:37 PM CDT	Severe Thunderstorm Warning	FGF	Ransom	53 min
Jul 17, 8:42 PM CDT	Severe Thunderstorm Warning	FGF	Richland	48 min
Jul 17, 8:58 PM CDT	Severe Thunderstorm Warning	FGF	Cass	32 min
Jul 17, 9:29 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland	31 min
Jul 17, 9:38 PM CDT	Severe Thunderstorm Warning	FGF	Ransom	37 min
Jul 17, 9:57 PM CDT	Severe Thunderstorm Warning	FGF	Richland	48 min
Jul 17, 10:05 PM CDT	Severe Thunderstorm Warning	FGF	Sargent	40 min
Jul 17, 10:11 PM CDT	Severe Thunderstorm Warning	FGF	Ransom	34 min
Jul 17, 10:40 PM CDT	Severe Thunderstorm Warning	FGF	Richland	35 min
Jul 17, 11:50 PM CDT	Severe Thunderstorm Warning	FGF	Barnes	40 min
Jul 18, 12:30 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass	45 min
Jul 18, 12:56 AM CDT	Severe Thunderstorm Warning	FGF	Griggs	49 min
Jul 18, 1:12 AM CDT	Severe Thunderstorm Warning	FGF	Cass	63 min
Jul 18, 2:07 AM CDT	Severe Thunderstorm Warning	FGF	Steele	38 min
Jul 18, 2:13 AM CDT	Severe Thunderstorm Warning	FGF	Cass	62 min
Jul 18, 3:41 PM CDT	Severe Thunderstorm Warning	FGF	Pembina	49 min
Jul 18, 4:22 PM CDT	Tornado Warning	FGF	Pembina	38 min
Jul 18, 5:43 PM CDT	Severe Thunderstorm Warning	FGF	Nelson	47 min
Jul 18, 5:57 PM CDT	Severe Thunderstorm Warning	FGF	Pembina	48 min
Jul 18, 6:00 PM CDT	Tornado Warning	FGF	Nelson	30 min
Jul 18, 6:04 PM CDT	Tornado Warning	FGF	Griggs	26 min
Jul 18, 6:26 PM CDT	Tornado Warning	FGF	Griggs, Nelson, Steele	49 min
Jul 18, 6:32 PM CDT	Tornado Warning	FGF	Walsh	43 min
Jul 18, 6:36 PM CDT	Tornado Warning	FGF	Pembina	24 min

Nearby

Tornado Warnings in North Dakota, 2001 Every tornado warning in 2001 Tornadoes 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.