Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 2, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Mar 22, 1991, 9:14 PM CST for Dane County, Green County, Wisconsin. It was in force for 61 min. 3 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
- Mar 22, 1991, 9:14 PM CST (03:14 UTC)
- Expired
- Mar 22, 1991, 10:15 PM CST
- In force
- 61 min
- Issued by
- NWS Green Bay, WI
- Area
- Whole counties
Counties Dane County, WI, Green County, WI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 22, 9:30 PM CST | Thunderstorm Wind 0 | Dane, WI | |
| Mar 22, 9:30 PM CST | Thunderstorm Wind 0 | Dane, WI | |
| Mar 22, 9:40 PM CST | Thunderstorm Wind 52 | 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 00:00Z, 3.2 hours before the alert went out and 212 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
- 521 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 223 m²/s²
- 0-3 km storm-relative helicity
- 281 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 230314 SVRMSN WIC025-045-230415- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MADISON WI 914 PM CST FRI MAR 22 1991 THE NATIONAL WEATHER SERVICE IN MADISON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 PM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL WISCONSIN ...DANE COUNTY...NORTHERN GREEN COUNTY AT 9:00 PM CST RADAR DETECTED A SEVERE THUNDERSTORM 30 MILES SOUTHWEST OF MADISON WHILE MOVING NE AT 40 TO 45 MPH..CITY INCLUDED IN THE WARNING IS MADISON..TOWNS IN THE PATH ARE NEW GLARUS AND SUN PRAIRIE. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALCLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. GJG
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 22, 4:56 PM CST, 4 hours 18 minutes before
WIZ005-008-009-012-013-230100- SPECIAL WEATHER STATEMENT AND SHORT RANGE AREA WEATHER SUMMARY NATIONAL WEATHER SERVICE GREEN BAY WI 5 PM CST FRI MAR 22 1991 STRONG LOW PRESSURE OVER SOUTHWEST IOWA WILL MOVE NORTHEAST TOWARD WISCONSIN THIS EVENING SENDING COPIOUS AMOUNTS OF MOISTURE NORTHWARD. THIS WILL CONTINUE THE RAIN AND DRIZZLE OVER THE AREA AND PRODUCE SOME THUNDERSTORMS WITH LOCALLY HEAVY RAINS. WITH THE GROUND FROZEN IN MANY AREAS AND SATURATED IN OTHERS SOME FLOODING IS POSSIBLE. AREAS PRONE TO FLOODING SHOULD BE ALERT AND TAKE PROPER PRECAUTIONS. NORTHEAST TO EAST WINDS OF 10 TO 20 MPH PREVAIL BUT WILL BECOME SOUTHERLY IN THE EARLY MORNING HOURS AND CAUSE TEMPERATURES TO RISE %INTO THE 40S. PLH
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 22, 8:48 PM CST | Severe Thunderstorm Warning | GRB | Iowa, Richland, Sauk | 57 min |
| Mar 22, 9:43 PM CST | Severe Thunderstorm Warning | GRB | Rock | 47 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.