Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 82, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 27, 1997, 8:11 AM CDT for Jefferson County, Rock County, Wisconsin. It was in force for 59 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
- Jul 27, 1997, 8:11 AM CDT (13:11 UTC)
- Expired
- Jul 27, 1997, 9:10 AM CDT
- In force
- 59 min
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
Counties Jefferson County, WI, Rock County, WI
The radar
The Milwaukee radar (KMKX), 33 km from the middle of the area, began a volume at 13:14 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 27, 8:20 AM CDT | Thunderstorm Wind | Lake Mills, WI | |
| Jul 27, 8:35 AM CDT | Thunderstorm Wind | Ft Atkinson, 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 nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 1.2 hours before the alert went out and 188 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
- 2407 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 1367 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
494 WUUS1 KMKE 271312 RRA SVRMKE WIC055-105-271410- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 811 AM CDT SUN JUL 27 1997 * SEVERE THUNDERSTORM WARNING FOR JEFFERSON COUNTY - SOUTHEASTERN WISCONSIN ROCK COUNTY - SOUTH CENTRAL WISCONSIN * UNTIL 910 AM CDT * SOME LOCATIONS AFFECTED FORT ATKINSON EDGERTON JANESVILLE MILTON * AT 810 AM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS EXTENDING OVER DANE COUNTY. THE LINE OF STORMS WAS MOVING EAST TO SOUTHEAST AT 30 MPH. WIND GUSTS TO 60 MPH AND VERY HEAVY RAINFALL CAN BE EXPECTED. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MK/TH
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.
In the hours before
Special weather statement, Jul 27, 6:00 AM CDT, 2 hours 11 minutes before
WIZ046-047-051-052-056>060-062>072-281200-
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
600 AM CDT SUN JUL 27 1997
...SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY AND TONIGHT...
...FOR SOUTH CENTRAL AND SOUTHEAST WISCONSIN...
THREAT...
DAMAGING WINDS AND LOCALLY HEAVY RAINFALL.
DISCUSSION...
VERY WARM AND UNSTABLE AIR WILL REMAIN ENTRENCHED OVER THE REGION
TODAY INTO TNIGHT. A WEAK BOUNDARY STRETCHING FROM NORTHEAST IOWA TO
SOUTHERN WISCONSIN WILL DEVELOP SCATTERED THUNDERSTORMS TODAY...WITH
THE STRONGER STORMS EXPECTED THIS AFTERNOON DUE TO DAYTIME HEATING.
MEANWHILE A COLD FRONT LOCATED JUST NORTH OF WISCONSIN EARLY THIS
MORNING IS FORECAST TO SAG INTO SOUTHERN WISCONSIN LATER THIS AFTERNOON
AND INTO TONIGHT. SOME STORMS MAY CONTAIN DAMAGING WINDS AND LOCALLY
VERY HEAVY RAINFALL.
SPOTTER ACTION...
ACTIVATION OF STORM SPOTTER GROUPS MAY BE NEEDED THIS AFTERNOON
INTO TONIGHT.
THSpecial weather statement, Jul 27, 6:09 AM CDT, 2 hours 2 minutes before
WIZ046-047-051-052-056>060-062>072-281200-
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
600 AM CDT SUN JUL 27 1997
...SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY AND TONIGHT...
...FOR SOUTH CENTRAL AND SOUTHEAST WISCONSIN...
THREAT...
DAMAGING WINDS AND LOCALLY HEAVY RAINFALL.
DISCUSSION...
VERY WARM AND UNSTABLE AIR WILL REMAIN ENTRENCHED OVER THE REGION
TODAY INTO TNIGHT. A WEAK BOUNDARY STRETCHING FROM NORTHEAST IOWA TO
SOUTHERN WISCONSIN WILL DEVELOP SCATTERED THUNDERSTORMS TODAY...WITH
THE STRONGER STORMS EXPECTED THIS AFTERNOON DUE TO DAYTIME HEATING.
MEANWHILE A COLD FRONT LOCATED JUST NORTH OF WISCONSIN EARLY THIS
MORNING IS FORECAST TO SAG INTO SOUTHERN WISCONSIN LATER THIS AFTERNOON
AND INTO TONIGHT. SOME STORMS MAY CONTAIN DAMAGING WINDS AND LOCALLY
VERY HEAVY RAINFALL.
SPOTTER ACTION...
ACTIVATION OF STORM SPOTTER GROUPS MAY BE NEEDED THIS AFTERNOON
INTO TONIGHT.
THThe office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 7:45 AM CDT | Severe Thunderstorm Warning | MKX | Dane | 60 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.