Alert archive / North Dakota / Tornado Warnings in 2001
Tornado Warning 39, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Jul 18, 2001, 6:00 PM CDT for Nelson County, North Dakota. It was in force for 30 min. 2 reports came from 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, with what was reported inside it.
The facts
- Issued
- Jul 18, 2001, 6:00 PM CDT (23:00 UTC)
- Expired
- Jul 18, 2001, 6:30 PM CDT
- In force
- 30 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Nelson County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 81 km from the middle of the area, began a volume at 23:03 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 18, 6:20 PM CDT | Hail 1.75 | Pekin, ND | |
| Jul 18, 6:25 PM CDT | Tornado F0 | Aneta, ND | The tornado was 100 yards wide. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
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 18, 4:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 11.0 hours before the alert went out and 220 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.
- Mixed-layer CAPE
- 1501 J/kg
- Mixed-layer CIN
- -233 J/kg
- Mixed-layer LCL
- 728 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KFGF 182300 TORFAR NDC063-182330- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 600 PM CDT WED JUL 18 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * TORNADO WARNING FOR... NELSON COUNTY IN NORTHEAST NORTH DAKOTA. * UNTIL 630 PM CDT. * AT 558 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO 2 MILES NORTH OF PEKIN...OR ABOUT 33 MILES SOUTHEAST OF DEVILS LAKE...MOVEMENT WAS TO THE NORTHEAST AT 20 MPH. * THE TORNADO WILL BE NEAR... MICHIGAN AT 630 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. \ A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA. LAT...LON 4782 9851 4770 9832 4794 9790 4810 9814 $$ 08 DJK NNNN
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 7:03 PM CDT | Tornado Warning | FGF | Ransom | 42 min |
| 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, 6:04 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, 2001Every tornado warning in 2001Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.