Alert archive / North Dakota / Tornado Warnings in 2002
Tornado Warning 4, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Jun 25, 2002, 1:21 PM CDT for Griggs County, Steele County, North Dakota. It was in force for 24 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
- Jun 25, 2002, 1:21 PM CDT (18:21 UTC)
- Expired
- Jun 25, 2002, 1:45 PM CDT
- In force
- 24 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
Counties Griggs County, ND, Steele County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 55 km from the middle of the area, began a volume at 18:22 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 25, 1:39 PM CDT | Hail 1.75 | Luverne, 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 nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 6.4 hours before the alert went out and 214 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
- 1621 J/kg
- Mixed-layer CIN
- -95 J/kg
- Mixed-layer LCL
- 1183 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS53 KFGF 251821
TORFAR
NDC039-091-251845-
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
121 PM CDT TUE JUN 25 2002
THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A
* TORNADO WARNING FOR...
EAST CENTRAL GRIGGS COUNTY IN SOUTHEAST NORTH DAKOTA AND
SOUTHWESTERN STEELE COUNTY IN SOUTHEAST NORTH DAKOTA.
* UNTIL 145 PM CDT.
* AT 117 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM WITH STRONG ROTATION OVER EXTREME SOUTHEASTERN
GRIGGS COUNTY...OR ABOUT 29 MILES NORTH OF VALLEY CITY...MOVEMENT
WAS TO THE EAST AT 20 MPH.
* THE TORNADO WILL REMAIN IN RURAL AREAS OF
WESTERN STEELE COUNTY...
SOUTHEASTERN GRIGGS COUNTY...
SOUTHWESTERN STEELE COUNTY AND
SOUTHERN STEELE COUNTY.
THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH OF THIS TORNADO
ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING.
LAT...LON 4741 9807 4737 9812 4730 9811 4725 9789
4737 9779
77
NNNNThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 1:14 PM CDT | Severe Thunderstorm Warning | FGF | Steele | 46 min |
| Jun 25, 1:45 PM CDT | Tornado Warning | FGF | Steele | 30 min |
| Jun 25, 2:07 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass | 38 min |
| Jun 25, 2:45 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 45 min |
| Jun 25, 3:50 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 55 min |
| Jun 25, 3:54 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Sargent | 51 min |
| Jun 25, 4:08 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 52 min |
| Jun 25, 5:10 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 35 min |
| Jun 25, 5:21 PM CDT | Severe Thunderstorm Warning | FGF | Sargent | 24 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; radar from the NEXRAD Level II archive.