Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 34, NWS Duluth, MN
NWS Duluth, MN issued this severe thunderstorm warning at Jul 16, 1997, 8:25 AM CDT for Douglas County, Washburn County, Wisconsin. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 16, 1997, 8:25 AM CDT (13:25 UTC)
- Expired
- Jul 16, 1997, 9:00 AM CDT
- In force
- 35 min
- Issued by
- NWS Duluth, MN
- Area
- Whole counties
Counties Douglas County, WI, Washburn County, WI
The radar
The Duluth radar (KDLH), 78 km from the middle of the area, began a volume at 13:25 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.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 1.4 hours before the alert went out and 202 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
- 2708 J/kg
- Mixed-layer CIN
- -130 J/kg
- Mixed-layer LCL
- 1260 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 175 m²/s²
- 0-3 km storm-relative helicity
- 176 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.2
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Duluth, MN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 16, 2:36 AM CDT, 5 hours 49 minutes earlier.
Area forecast discussion, Jul 16, 2:36 AM CDT, 5 hours 49 minutes before
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Local storm report, Jul 16, 7:21 AM CDT, 1 hour 4 minutes before
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Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 1:22 AM CDT | Severe Thunderstorm Warning | DLH | Cook | 38 min |
| Jul 16, 3:13 AM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 32 min |
| Jul 16, 3:43 AM CDT | Severe Thunderstorm Warning | DLH | Lake | 32 min |
| Jul 16, 5:10 AM CDT | Severe Thunderstorm Warning | DLH | Pine | 65 min |
| Jul 16, 11:05 AM CDT | Severe Thunderstorm Warning | DLH | Carlton | 55 min |
| Jul 16, 4:57 PM CDT | Severe Thunderstorm Warning | DLH | Lake, Saint Louis | 63 min |
| Jul 16, 10:27 AM CDT | Severe Thunderstorm Warning | DLH | Ashland, Bayfield | 63 min |
| Jul 16, 11:26 AM CDT | Severe Thunderstorm Warning | DLH | Ashland, Iron | 49 min |
| Jul 16, 12:18 PM CDT | Severe Thunderstorm Warning | DLH | Iron | 57 min |
| Jul 16, 2:43 PM CDT | Severe Thunderstorm Warning | DLH | Sawyer | 62 min |
| Jul 16, 3:00 PM CDT | Severe Thunderstorm Warning | DLH | Price | 60 min |
| Jul 16, 3:28 PM CDT | Tornado Warning | DLH | Sawyer | 47 min |
| Jul 16, 3:57 PM CDT | Severe Thunderstorm Warning | DLH | Price | 63 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1997Every severe thunderstorm warning in 1997
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.