Alert archive / North Dakota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 151, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 18, 2001, 8:46 PM CDT for Barnes County, North Dakota. It was in force for 59 min. 1 report 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, 8:46 PM CDT (01:46 UTC)
- Expired
- Jul 18, 2001, 9:45 PM CDT
- In force
- 59 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Barnes County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 106 km from the middle of the area, began a volume at 01:49 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, 9:30 PM CDT | Hail 0.75 | Urbana, ND |
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 00:00Z, 1.8 hours before the alert went out and 173 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
- 2623 J/kg
- Mixed-layer CIN
- -63 J/kg
- Mixed-layer LCL
- 1396 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 182 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 4.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFGF 190146 SVRFAR NDC003-190245- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 846 PM CDT WED JUL 18 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN BARNES COUNTY IN SOUTHEAST NORTH DAKOTA. * UNTIL 945 PM CDT. * AT 844 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF URBANA...OR ABOUT 26 MILES WEST OF VALLEY CITY...MOVEMENT WAS TO THE NORTHEAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... URBANA AT 905 PM CDT... ECKELSON AT 915 PM CDT... SANBORN AT 930 PM CDT AND ROGERS AT 945 PM CDT. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA. LAT...LON 4689 9874 4665 9837 4707 9804 4724 9829 $$ 14 NNNN
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 7:00 PM CDT | Tornado Warning | FGF | Pembina | 45 min |
| Jul 18, 7:08 PM CDT | Flash Flood Warning | FGF | Pembina | 3 hr |
| Jul 18, 7:09 PM CDT | Severe Thunderstorm Warning | FGF | Griggs | 51 min |
| Jul 18, 7:09 PM CDT | Tornado Warning | FGF | Nelson | 51 min |
| Jul 18, 7:13 PM CDT | Tornado Warning | FGF | Walsh | 47 min |
| Jul 18, 7:15 PM CDT | Tornado Warning | FGF | Griggs, Steele | 45 min |
| Jul 18, 7:15 PM CDT | Tornado Warning | FGF | Grand Forks | 45 min |
| Jul 18, 7:17 PM CDT | Flash Flood Warning | FGF | Grand Forks, Nelson | 3 hr |
| Jul 18, 7:42 PM CDT | Severe Thunderstorm Warning | FGF | Pembina | 48 min |
| Jul 18, 7:55 PM CDT | Severe Thunderstorm Warning | FGF | Walsh | 50 min |
| Jul 18, 8:00 PM CDT | Tornado Warning | FGF | Griggs, Steele | 45 min |
| Jul 18, 10:47 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 43 min |
| Jul 18, 11:28 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 47 min |
| Jul 18, 11:47 PM CDT | Tornado Warning | FGF | Grand Forks | 28 min |
| Jul 19, 12:04 AM CDT | Severe Thunderstorm Warning | FGF | Traill | 41 min |
| Jul 19, 12:14 AM CDT | Tornado Warning | FGF | Grand Forks | 31 min |
| Jul 19, 12:27 AM CDT | Flash Flood Warning | FGF | Grand Forks, Traill | 2 hr |
| Jul 19, 12:27 AM CDT | Tornado Warning | FGF | Traill | 33 min |
| Jul 19, 1:59 AM CDT | Severe Thunderstorm Warning | FGF | Walsh | 46 min |
| Jul 19, 5:07 AM CDT | Severe Thunderstorm Warning | FGF | Ransom | 23 min |
| Jul 19, 5:16 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 44 min |
| Jul 19, 6:02 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 28 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2001Every severe thunderstorm warning 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.