Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 178, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 12, 2000, 12:51 AM CDT for Eddy County, North Dakota. It was in force for 59 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
- Aug 12, 2000, 12:51 AM CDT (05:51 UTC)
- Expired
- Aug 12, 2000, 1:50 AM CDT
- In force
- 59 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
County Eddy County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 120 km from the middle of the area, began a volume at 05:52 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 |
|---|---|---|---|
| Aug 12, 12:55 AM CDT | Thunderstorm Wind | Hamar, ND | Large branches were blown down by the strong wind. |
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 |
|---|---|---|---|
| Aug 11, 9:45 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 5.9 hours before the alert went out and 172 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
- 2271 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 2674 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 207 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.7
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 10:51 PM CDT | Severe Thunderstorm Warning | FGF | Towner | 29 min |
| Aug 12, 12:04 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 46 min |
| Aug 12, 12:04 AM CDT | Severe Thunderstorm Warning | FGF | Eddy | 46 min |
| Aug 12, 12:51 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Nelson, Ramsey, Walsh | 59 min |
| Aug 12, 1:25 AM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 30 min |
| Aug 12, 1:25 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 30 min |
| Aug 12, 1:55 AM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 30 min |
| Aug 12, 1:55 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 30 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2000Every severe thunderstorm warning in 2000
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.