Alert archive / Wisconsin / Tornado Warnings in 1991
Tornado Warning 11, NWS Green Bay, WI
NWS Green Bay, WI issued this tornado warning at Jul 7, 1991, 2:41 PM CDT for Columbia County, Dane County, Wisconsin. It was in force for 34 min. 5 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 7, 1991, 2:41 PM CDT (19:41 UTC)
- Expired
- Jul 7, 1991, 3:15 PM CDT
- In force
- 34 min
- Issued by
- NWS Green Bay, WI
- Area
- Whole counties
Counties Columbia County, WI, Dane County, WI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 7, 2:45 PM CDT | Thunderstorm Wind 0 | Dane, WI | |
| Jul 7, 3:05 PM CDT | Thunderstorm Wind 59 | Dane, WI | |
| Jul 7, 3:13 PM CDT | Thunderstorm Wind 0 | Dane, WI | |
| Jul 7, 3:13 PM CDT | Thunderstorm Wind 0 | Dane, WI | |
| Jul 7, 3:15 PM CDT | Thunderstorm Wind 0 | Columbia, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 7.7 hours before the alert went out and 169 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1805 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -67 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMSN 071941 TORMSN WIC021-025-072015- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MADISON WI 241 PM CDT SUN JUL 7 1991 THE NATIONAL WEATHER SERVICE IN MADISON HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 315 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL WISCONSIN ...SOUTHERN COLUMBIA COUNTY...NORTHERN DANE COUNTY RADAR CONTINUED T0 INDICATED A POSSIBLE TORNADO 5 MILES SOUTHWEST OF SAUK CITY MOVING EASTWARD AT 50 TO 55 MPH SOME CITIES IN THE PATH...LODI...ARLINGTON...MORRISONVILLE... AND COLUMBUS. IF THIS STORM APPROACHES YOU...SEEK IMMEDIATE SHELTER. THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY. IF YOU ARE IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF AVAILABLE. OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. AVOID WINDOWS. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT. IF YOU LIVE IN A HOME OR APARTMENT...SEEK SHELTER IN THE INNERMOST PORTION OF THE BUILDING ON THE LOWEST FLOOR. GET TO A BASEMENT IF ONE IS AVAILABLE. AVOID WINDOWS AND PROTECT YOUR BODY FROM FLYING DEBRIS WITH CUSHIONS...BLANKETS...OR PILLOWS. STIMACH
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 1:45 PM CDT | Severe Thunderstorm Warning | GRB | Iowa, Richland | 60 min |
| Jul 7, 1:56 PM CDT | Severe Thunderstorm Warning | GRB | Columbia, Dane, Sauk | 64 min |
| Jul 7, 2:12 PM CDT | Severe Thunderstorm Warning | GRB | Adams, Juneau | 48 min |
| Jul 7, 2:26 PM CDT | Tornado Warning | GRB | Iowa, Sauk | 34 min |
| Jul 7, 2:59 PM CDT | Tornado Warning | GRB | Dane | 31 min |
| Jul 7, 3:07 PM CDT | Tornado Warning | GRB | Dane | 33 min |
Nearby
Tornado Warnings in Wisconsin, 1991Every tornado warning in 1991Tornadoes in 1991
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.