Alert archive / Minnesota / Tornado Warnings in 2001
Tornado Warning 62, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Aug 8, 2001, 9:47 PM CDT for Clearwater County, Polk County, Minnesota. It was in force for 28 min. 3 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
- Aug 8, 2001, 9:47 PM CDT (02:47 UTC)
- Expired
- Aug 8, 2001, 10:15 PM CDT
- In force
- 28 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Clearwater County, MN, Polk County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 140 km from the middle of the area, began a volume at 02:50 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 |
|---|---|---|---|
| Aug 8, 9:58 PM CDT | Thunderstorm Wind | Trail, MN | Many trees were blown down. |
| Aug 8, 10:05 PM CDT | Tornado F1 | Gully, MN | An auto repair shop had its roof torn off. Many trees were uprooted, falling on signs, powerlines, homes, and garages. Several grain bins were destroyed. |
| Aug 8, 10:05 PM CDT | Thunderstorm Wind | Gully, MN | 36 oak and ash trees were uprooted. |
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 |
|---|---|---|---|
| Aug 8, 6:00 PM CDT | Tornado Watch | SPC | 5 hr |
| Aug 8, 9:45 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
International Fa, MN (KINL), launched 00:00Z, 2.8 hours before the alert went out and 182 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
- 1405 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 1530 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- -17 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.8
The text
As transmitted, in the capitals the NWS used until 2016.
480 WFUS53 KFGF 090247 TORFAR MNC029-119-090315- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 947 PM CDT WED AUG 8 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * TORNADO WARNING FOR... NORTHERN CLEARWATER COUNTY IN NORTHWEST MINNESOTA AND EAST CENTRAL POLK COUNTY IN NORTHWEST MINNESOTA. * UNTIL 1015 PM CDT. * AT 945 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO 10 MILES WEST OF BERNER...OR ABOUT 30 MILES SOUTHEAST OF THIEF RIVER FALLS...MOVEMENT WAS TO THE EAST AT 50 MPH. * THE TORNADO WILL BE NEAR... BERNER AT 955 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 1100 PM CDT WEDNESDAY EVENING FOR NORTHWEST MINNESOTA AND EASTERN NORTH DAKOTA. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT THURSDAY MORNING FOR NORTHWESTERN MINNESOTA AND SOUTHEAST NORTH DAKOTA. LAT...LON 4795 9570 4776 9572 4778 9522 4795 9532 $$ 7 NNNN
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 7:29 PM CDT | Severe Thunderstorm Warning | FGF | Marshall | 46 min |
| Aug 8, 8:18 PM CDT | Severe Thunderstorm Warning | FGF | Kittson, Marshall, Pennington, Polk, Roseau | 57 min |
| Aug 8, 8:18 PM CDT | Severe Thunderstorm Warning | FGF | Red Lake | 57 min |
| Aug 8, 8:47 PM CDT | Flash Flood Warning | FGF | Polk | 6 hr |
| Aug 8, 9:03 PM CDT | Severe Thunderstorm Warning | FGF | Norman | 42 min |
| Aug 8, 9:10 PM CDT | Severe Thunderstorm Warning | FGF | Clearwater, Mahnomen, Polk | 65 min |
| Aug 8, 9:10 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Marshall, Pennington, Red Lake | 65 min |
| Aug 8, 9:18 PM CDT | Severe Thunderstorm Warning | FGF | Lake of the Woods | 42 min |
| Aug 8, 9:26 PM CDT | Severe Thunderstorm Warning | FGF | Clay | 64 min |
| Aug 8, 9:40 PM CDT | Flash Flood Warning | FGF | Norman | 6 hr |
| Aug 8, 9:46 PM CDT | Severe Thunderstorm Warning | FGF | Wilkin | 44 min |
| Aug 8, 10:00 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Beltrami, Hubbard | 60 min |
| Aug 8, 10:13 PM CDT | Severe Thunderstorm Warning | FGF | Clearwater, Mahnomen | 47 min |
| Aug 8, 10:37 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail, Wadena | 53 min |
| Aug 8, 11:00 PM CDT | Severe Thunderstorm Warning | FGF | Hubbard | 30 min |
Nearby
Tornado Warnings in Minnesota, 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.