Alert archive / Minnesota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 121, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 17, 2001, 8:22 PM CDT for Becker County, Otter Tail County, Minnesota. It was in force for 53 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, 8:22 PM CDT (01:22 UTC)
- Expired
- Jul 17, 2001, 9:15 PM CDT
- In force
- 53 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Becker County, MN, Otter Tail County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 141 km from the middle of the area, began a volume at 01:22 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
International Fa, MN (KINL), launched 00:00Z, 1.4 hours before the alert went out and 275 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
- 2282 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 878 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.0
The text
As transmitted, in the capitals the NWS used until 2016.
937 WUUS53 KFGF 180122 SVRFAR MNC005-111-180215- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 822 PM CDT TUE JUL 17 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN BECKER COUNTY IN NORTHWEST MINNESOTA AND EXTREME NORTH CENTRAL OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA. INCLUDING THE CITY OF DETROIT LAKES... * UNTIL 915 PM CDT. * AT 817 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES NORTHEAST OF CORMORANT...OR ABOUT 9 MILES WEST OF DETROIT LAKES...MOVEMENT WAS TO THE EAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... SHOREHAM AT 830 PM CDT... DETROIT LAKES AT 840 PM CDT... FRAZEE AT 900 PM CDT AND ROCHERT AT 905 PM CDT. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT WEDNESDAY MORNING FOR SOUTHEAST NORTH DAKOTA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL MIDNIGHT CDT WEDNESDAY MORNING FOR NORTHWESTERN MINNESOTA. LAT...LON 4685 9613 4667 9613 4663 9537 4690 9537 $$ BRAZZELL NNNN
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 17, 8:00 PM CDT, 22 minutes earlier.
Area forecast discussion, Jul 17, 8:00 PM CDT, 22 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 800 PM CDT TUE JUL 17 2001 ...DUE TO ONGOING SEVERE WEATHER...THE EVENING AFfD WILL BE DELAYED... THE EVENING FORECAST DISCUSSION AND ZONE UPDATES WILL OCCUR ONCE THE SEVERE WEATHER SUBSIDES... RJT
In the hours before
Local storm report, Jul 17, 5:28 PM CDT, 2 hours 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
528 PM CDT TUE JUL 17 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0350 PM 7 W FINLEY ND 2 INCH HAIL
07/17/01 GRIGGS
0400 PM 7 SW FINLEY ND 2 INCH HAIL
07/17/01 STEELE GROUND WAS WHITE
0404 PM 4 E COOPERSTOWN ND 1 INCH HAIL
07/17/01 GRIGGS
0405 PM 5 W FINLEY ND 1.75 INCH HAIL
07/17/01 STEELE
0425 PM 3 N BEMIDJI MN 1.5 INCH HAIL
07/17/01 BELTRAMI
0428 PM 3 S FINLEY ND 1 INCH HAIL
07/17/01 STEELE
0435 PM 5 N HOPE ND 1.75 INCH HAIL
07/17/01 STEELE
0435 PM 3 S SALOL MN 1 INCH HAIL
07/17/01 ROSEAU
0440 PM 10 N GRYGLA MN .75 INCH HAIL
07/17/01 MARSHALL
0453 PM 4 W KELLIHER MN .75 INCH HAIL
07/17/01 BELTRAMI
NNNNSpecial weather statement, Jul 17, 7:29 PM CDT, 53 minutes before
NDZ014-015-024-026>030-180100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 729 PM CDT TUE JUL 17 2001 ...SEVERE THUNDERSTORM WATCH HAS EXPIRED... AT 700 PM CDT...THE ATMOSPHERE HAS STABILIZED OVER BENSON... RAMSEY...NELSON...GRAND FORKS...EDDY...GRIGGS...STEELE AND TRAILL COUNTIES OF EASTERN NORTH DAKOTA. WHILE SCATTERED THUNDERSTORMS ARE POSSIBLE...NO SEVERE WEATHER IS EXPECTED. A TORNADO WATCH REMAINS IN EFFECT FOR SOUTHEAST NORTH DAKOTA AND MUCH OF NORTHWEST MINNESOTA UNTIL MIDNIGHT CDT. RJT
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 7:02 PM CDT | Tornado Warning | FGF | Beltrami | 28 min |
| Jul 17, 7:14 PM CDT | Severe Thunderstorm Warning | FGF | Lake of the Woods | 61 min |
| Jul 17, 7:16 PM CDT | Tornado Warning | FGF | Wadena | 29 min |
| Jul 17, 7:32 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami | 43 min |
| Jul 17, 8:10 PM CDT | Tornado Warning | FGF | Wilkin | 35 min |
| Jul 17, 8:15 PM CDT | Severe Thunderstorm Warning | FGF | Hubbard | 60 min |
| Jul 17, 8:18 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Lake of the Woods | 57 min |
| Jul 17, 8:42 PM CDT | Severe Thunderstorm Warning | FGF | Wilkin | 48 min |
| Jul 17, 9:11 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 49 min |
| Jul 17, 9:59 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 31 min |
| Jul 17, 11:00 PM CDT | Severe Thunderstorm Warning | FGF | Wilkin | 30 min |
| Jul 18, 4:22 PM CDT | Tornado Warning | FGF | Kittson | 38 min |
| Jul 18, 4:57 PM CDT | Tornado Warning | FGF | Kittson | 33 min |
| Jul 18, 5:29 PM CDT | Tornado Warning | FGF | Kittson, Roseau | 46 min |
| Jul 18, 6:14 PM CDT | Severe Thunderstorm Warning | FGF | Roseau | 61 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.