Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 62, NWS Duluth, MN
NWS Duluth, MN issued this severe thunderstorm warning at Sep 1, 1997, 2:21 PM CDT for Burnett County, Washburn County, Wisconsin. It was in force for 69 min. 2 reports 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
- Sep 1, 1997, 2:21 PM CDT (19:21 UTC)
- Expired
- Sep 1, 1997, 3:30 PM CDT
- In force
- 69 min
- Issued by
- NWS Duluth, MN
- Area
- Whole counties
Counties Burnett County, WI, Washburn County, WI
The radar
The Duluth radar (KDLH), 107 km from the middle of the area, began a volume at 19:22 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 |
|---|---|---|---|
| Sep 1, 3:00 PM CDT | Thunderstorm Wind 50 | Danbury, WI | |
| Sep 1, 3:16 PM CDT | Thunderstorm Wind 50 | Danbury, WI |
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 |
|---|---|---|---|
| Sep 1, 1:45 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 7.4 hours before the alert went out and 165 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
- 751 J/kg
- Mixed-layer CIN
- -155 J/kg
- Mixed-layer LCL
- 739 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 215 m²/s²
- 0-3 km storm-relative helicity
- 203 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.7
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 Sep 1, 2:45 AM CDT, 11 hours 36 minutes earlier.
Area forecast discussion, Sep 1, 2:45 AM CDT, 11 hours 36 minutes before
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</html>In the hours before
Local storm report, Sep 1, 9:48 AM CDT, 4 hours 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
948 AM CDT MON SEP 1 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0330 AM BOWSTRING LAKE MN WIND DAMAGE
09/01/97 ITASCA LARGE TREES DOWN.
POSSIBLY DUE TO
MESO-HIGH. NO
THUNDERSTORMS IN AREA AT
TIME.
0330 AM SQUAW LAKE MN WIND DAMAGE
09/01/97 ITASCA LARGE TREES DOWN DUE TO
ESTIMATED 70 MPH WINDS.
POSSIBLY DUE TO
MESO-HIGH. NO
THUNDERSTORMS IN AREA AT
TIME.
0315 AM BENA MN WIND DAMAGE
09/01/97 CASS LARGE TREES DOWN OVER
POWER LINE. POSSIBLY DUE
TO MESO-HIGH. NO
THUNDERSTORMS IN AREA AT
TIME.
0300 AM BENA MN WIND DAMAGE
09/01/97 CASS FORTY FOOT...EIGHTEEN
INCH DIAMETER TREE DOWN
ON A HOUSE AND CABIN AT A
RESORT NEAR PORTAGE LAKE
DUE TO 70 MPH WINDS FOR A
DURATION OF 20-30
MINUTES. SEVERAL BOATS
INCLUDING A FEW PONTOONS
BLOWN ON SHORE. POSSIBLY
ATTRIBUTED TO MESO-HIGH.
NO THUNDERSTORMS IN THE
AREA AT THE TIME.
0330 AM SQUAW LAKE MN WIND DAMAGE
09/01/97 ITASCA SEVERAL TREES DOWN
BLOCKING THE ROAD. POWER
OUT. A FEW TREES WERE 24
INCHES IN DIAMETER.
POSSIBLY ATTRIBUTED TO
MESO-HIGH. NO
THUNDERSTORMS IN THE AREA
AT THE TIME.
DAPLocal storm report, Sep 1, 9:50 AM CDT, 4 hours 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
948 AM CDT MON SEP 1 1997
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0330 AM BOWSTRING LAKE MN WIND DAMAGE
09/01/97 ITASCA LARGE TREES DOWN.
POSSIBLY DUE TO
MESO-HIGH. NO
THUNDERSTORMS IN AREA AT
TIME.
0330 AM SQUAW LAKE MN WIND DAMAGE
09/01/97 ITASCA LARGE TREES DOWN DUE TO
ESTIMATED 70 MPH WINDS.
POSSIBLY DUE TO
MESO-HIGH. NO
THUNDERSTORMS IN AREA AT
TIME.
0315 AM BENA MN WIND DAMAGE
09/01/97 CASS LARGE TREES DOWN OVER
POWER LINE. POSSIBLY DUE
TO MESO-HIGH. NO
THUNDERSTORMS IN AREA AT
TIME.
0300 AM BENA MN WIND DAMAGE
09/01/97 CASS FORTY FOOT...EIGHTEEN
INCH DIAMETER TREE DOWN
ON A HOUSE AND CABIN AT A
RESORT NEAR PORTAGE LAKE
DUE TO 70 MPH WINDS FOR A
DURATION OF 20-30
MINUTES. SEVERAL BOATS
INCLUDING A FEW PONTOONS
BLOWN ON SHORE. POSSIBLY
ATTRIBUTED TO MESO-HIGH.
NO THUNDERSTORMS IN THE
AREA AT THE TIME.
0330 AM SQUAW LAKE MN WIND DAMAGE
09/01/97 ITASCA SEVERAL TREES DOWN
BLOCKING THE ROAD. POWER
OUT. A FEW TREES WERE 24
INCHES IN DIAMETER.
POSSIBLY ATTRIBUTED TO
MESO-HIGH. NO
THUNDERSTORMS IN THE AREA
AT THE TIME.
DAPThe office that day
Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 11:36 AM CDT | Severe Thunderstorm Warning | DLH | Crow Wing | 59 min |
| Sep 1, 12:21 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Crow Wing | 44 min |
| Sep 1, 1:05 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Pine | 40 min |
| Sep 1, 1:43 PM CDT | Severe Thunderstorm Warning | DLH | Pine | 62 min |
| Sep 1, 2:49 PM CDT | Severe Thunderstorm Warning | DLH | Pine | 61 min |
| Sep 1, 3:20 PM CDT | Tornado Warning | DLH | Burnett | 25 min |
| Sep 1, 3:43 PM CDT | Severe Thunderstorm Warning | DLH | Sawyer, Washburn | 57 min |
| Sep 1, 4:27 PM CDT | Severe Thunderstorm Warning | DLH | Burnett | 63 min |
| Sep 1, 5:06 PM CDT | Flash Flood Warning | DLH | Burnett, Washburn | 3 hr |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.