Alert archive / North Dakota / Tornado Warnings in 1998
Tornado Warning 14, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Jul 18, 1998, 7:25 PM CDT for Ransom County, North Dakota. It was in force for 30 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
- Jul 18, 1998, 7:25 PM CDT (00:25 UTC)
- Expired
- Jul 18, 1998, 7:55 PM CDT
- In force
- 30 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County Ransom County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 122 km from the middle of the area, began a volume at 00:27 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 |
|---|---|---|---|
| Jul 18, 7:30 PM CDT | Tornado F1 | Lisbon, ND | A tornado touched down on a farmstead, destroying numerous buildings. One barn was destroyed and 60 hogs inside were killed. Power was knocked out. The tornado crossed highway 27 and dissipated. |
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 18, 5:15 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 0.4 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
- 2715 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 1730 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- -26 m²/s²
- 0-3 km storm-relative helicity
- -4 m²/s²
- Significant tornado parameter
- -0.1
- Supercell composite
- -1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFAR 190024 TORFAR NDC073-190055- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 725 PM CDT SAT JUL 18 1998 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * TORNADO WARNING FOR... EASTERN RANSOM COUNTY IN SOUTHEASTERN NORTH DAKOTA * UNTIL 755 PM CDT * AT 721 PM...SPOTTERS REPORTED A TORNADO 5 MILES NORTHEAST OF LISBON OR 40 MILES SOUTHEAST OF VALLEY CITY. THE STORM IS MOVING TO SOUTHEAST AT 20 MPH. * THE TORNADO WILL BE NEAR... INTERSECT HIGHWAY 27 15 MILES EAST OF LISBON THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING. &
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 7:11 PM CDT | Severe Thunderstorm Warning | FGF | Ransom | 34 min |
| Jul 18, 7:44 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 46 min |
| Jul 18, 8:11 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 34 min |
| Jul 18, 8:42 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 18 min |
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.