Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 7, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Mar 27, 1991, 1:41 PM CST for Dane County, Wisconsin. It was in force for 49 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
- Mar 27, 1991, 1:41 PM CST (19:41 UTC)
- Expired
- Mar 27, 1991, 2:30 PM CST
- In force
- 49 min
- Issued by
- NWS Green Bay, WI
- Area
- Whole counties
County Dane County, WI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 27, 2:05 PM CST | Tornado F2 | Dane, 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 189 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
- 1516 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- -11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
In the hours before
Special weather statement, Mar 27, 1:31 PM CST, 10 minutes before
WIZ-005-008-009-012-013-272000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 125 PM CST WED MAR 27 1991 ...STRONG THUNDERSTORMS OVER EAST-CENTRAL AND NORTHEAST WISCONSIN... ...A TORNADO WATCH REMAINS IN EFFECT FOR A LARGE PART OF NORTHEAST AND EAST-CENTRAL WISCONSIN UNTIL 8 PM... AT 115 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A CLUSTER OF STRONG THUNDERSTORMS OVER EAST CENTRAL EXTENDING INTO NORTHEASTERN WISCONSIN. THE STRONGEST THUNDERSTORMS WERE LOCATED OVER SOUTHEAST WAUSHARA...NORTHERN MARQUETTE AND INTO NORTHERN GREEN LAKE COUNTY. ANOTHER AREA WAS LOCATED OVER WESTERN PORTAGE AND EASTERN WAUPACA COUNTIES. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 40 TO 50 MPH AND WILL BE MOVING THROUGH WINNEBAGO...OUTAGAMIE AND CALUMET COUNTIES BETWEEN 130 AND 2 PM. THE OTHER AREA WILL MOVE THROUGH WAUPACA COUNTY BY 2 PM. HAIL...HEAVY RAINS AND STRONG GUSTY WINDS WILL ACCOMPANY SOME OF THESE STORMS. REMEMBER...THE EN.TIRE AREA REMAINS UNDER A TORNADO WATCH UNTIL 8PM. MECIKALSKI
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 26, 11:05 PM CST | Severe Thunderstorm Warning | GRB | Dane | 40 min |
| Mar 27, 1:07 PM CST | Severe Thunderstorm Warning | GRB | Dane, Green, Iowa | 38 min |
| Mar 27, 1:25 PM CST | Severe Thunderstorm Warning | GRB | Waushara | 35 min |
| Mar 27, 1:47 PM CST | Severe Thunderstorm Warning | GRB | Rock | 43 min |
| Mar 27, 2:04 PM CST | Tornado Warning | GRB | Dane, Rock | 41 min |
| Mar 27, 2:16 PM CST | Severe Thunderstorm Warning | GRB | Brown, Outagamie | 44 min |
| Mar 27, 2:30 PM CST | Tornado Warning | GRB | Brown, Outagamie | 30 min |
| Mar 27, 2:58 PM CST | Severe Thunderstorm Warning | GRB | Manitowoc | 47 min |
| Mar 27, 2:58 PM CST | Severe Thunderstorm Warning | GRB | Calumet | 22 min |
| Mar 27, 3:08 PM CST | Severe Thunderstorm Warning | GRB | Green Lake, Marquette, Waushara | 37 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1991Every severe thunderstorm warning 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.