Alert archive / North Dakota / Tornado Warnings in 1998
Tornado Warning 8, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Jun 18, 1998, 6:48 PM CDT for Traill County, North Dakota. It was in force for 27 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 18, 1998, 6:48 PM CDT (23:48 UTC)
- Expired
- Jun 18, 1998, 7:15 PM CDT
- In force
- 27 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County Traill County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 15 km from the middle of the area, began a volume at 23:52 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 18, 7:08 PM CDT | Tornado F0 | Kelso, 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 |
|---|---|---|---|
| Jun 18, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 11.8 hours before the alert went out and 278 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
- 4 J/kg
- Mixed-layer CIN
- -120 J/kg
- Mixed-layer LCL
- 726 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- 31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
393 WFUS1 KFAR 182348 RRA TORFAR NDC097-190020- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 648 PM CDT THU JUN 18 1998 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * TORNADO WARNING FOR... TRAILL COUNTY IN SOUTHEASTERN NORTH DAKOTA * UNTIL 715 PM CDT * AT 645 PM CDT DOPPLER RADAR INDICATED A TORNADO MOVING NORTH AT 10 MPH NEAR GRANDIN WHICH IS 25 MILES NORTH OF FARGO. * THE TORNADO WILL BE NEAR... KELSO IF YOU ARE IN THE PATH OF A TORNADO THE SAFEST PLACE IS A BASEMENT. GET UNDER A STAIRWAY OR A PIECE OF STURDY FURNITURE.
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 2:47 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 33 min |
| Jun 18, 5:52 PM CDT | Flash Flood Warning | FGF | Cass | 2 hr |
Nearby
Tornado Warnings in North Dakota, 1998Every tornado warning in 1998Tornadoes in 1998
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.