Alert archive / North Dakota / Tornado Warnings in 2002
Tornado Warning 14, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Jul 31, 2002, 6:18 PM CDT for Ramsey County, North Dakota. It was in force for 42 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 31, 2002, 6:18 PM CDT (23:18 UTC)
- Expired
- Jul 31, 2002, 7:00 PM CDT
- In force
- 42 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
County Ramsey County, ND
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 31, 6:50 PM CDT | Tornado F0 | Penn, ND | A tornado touched down in a field, causing minimal crop damage. |
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 31, 3:50 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 11.3 hours before the alert went out and 208 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
- 307 J/kg
- Mixed-layer CIN
- -525 J/kg
- Mixed-layer LCL
- 1640 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 161 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.6
The text
As transmitted, in the capitals the NWS used until 2016.
304 WFUS53 KFGF 312318 TORFAR NDC071-010000- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 617 PM CDT WED JUL 31 2002 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * TORNADO WARNING FOR... WESTERN RAMSEY COUNTY IN NORTHEAST NORTH DAKOTA. * UNTIL 700 PM CDT. * AT 614 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG ROTATION 12 MILES WEST OF PENN...OR ABOUT 23 MILES WEST OF DEVILS LAKE...MOVEMENT WAS TO THE EAST AT 35 MPH. * THE TORNADO WILL BE NEAR... PENN AT 635 PM... WEBSTER AT 645 PM AND DEVILS LAKE AT 650 PM. AT 6:00 PM...SPOTTERS REPORTED A TORNADO 3 MILES SOUTH OF LEEDS. VERY LARGE HAIL IS ALSO LIKELY WITH THIS STORM. THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM THURSDAY MORNING FOR NORTHWESTERN MINNESOTA AND EASTERN NORTH DAKOTA. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM WEDNESDAY EVENING FOR NORTHEAST NORTH DAKOTA. LAT...LON 4834 9918 4817 9917 4807 9880 4832 9870 & 30 NNNN
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 3:36 AM CDT | Severe Thunderstorm Warning | FGF | Sargent | 39 min |
| Jul 31, 4:13 AM CDT | Severe Thunderstorm Warning | FGF | Richland, Sargent | 47 min |
| Jul 31, 4:59 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 31 min |
| Jul 31, 6:13 PM CDT | Tornado Warning | FGF | Benson | 32 min |
| Jul 31, 6:46 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 44 min |
Nearby
Tornado Warnings in North Dakota, 2002Every tornado warning in 2002Tornadoes in 2002
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.