Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 74, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Aug 21, 2002, 5:54 PM CDT for Columbia County, Dane County, Marquette County, Wisconsin. It was in force for 51 min. 4 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
- Aug 21, 2002, 5:54 PM CDT (22:54 UTC)
- Expired
- Aug 21, 2002, 6:45 PM CDT
- In force
- 51 min
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
Counties Columbia County, WI, Dane County, WI, Marquette County, WI
The radar
The Milwaukee radar (KMKX), 86 km from the middle of the area, began a volume at 22:57 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 |
|---|---|---|---|
| Aug 21, 6:00 PM CDT | Thunderstorm Wind 56 E | Cross Plains, WI | |
| Aug 21, 6:05 PM CDT | Thunderstorm Wind 56 E | Briggsville, WI | |
| Aug 21, 6:10 PM CDT | Thunderstorm Wind 52 E | Lewiston, WI | |
| Aug 21, 6:30 PM CDT | Thunderstorm Wind 52 E | Belleville, 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 |
|---|---|---|---|
| Aug 21, 2:25 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.9 hours before the alert went out and 154 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
- 973 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 162 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
982 WUUS53 KMKX 212254 SVRMKE WIC021-025-077-212345- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 553 PM CDT WED AUG 21 2002 THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MARQUETTE COUNTY IN SOUTH CENTRAL WISCONSIN COLUMBIA COUNTY IN SOUTH CENTRAL WISCONSIN DANE COUNTY IN SOUTH CENTRAL WISCONSIN * UNTIL 645 PM CDT * AT 553 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 8 MILES EAST OF WISCONSIN DELLS TO 8 MILES NORTHEAST OF DARLINGTON...MOVING NORTHEAST AT 45 MPH. * SEVERE THUNDERSTORMS WILL BE NEAR... ENDEAVOR AT 600 PM CDT. LAKE WISCONSIN AT 605 PM CDT. WESTFIELD AT 610 PM CDT. MONTELLO AT 615 PM CDT. HAIL UP TO 3/4 OF AN INCH IN DIAMETER AND WINDS GREATER THAN 60 MILES AN HOUR ARE EXPECTED FROM THIS STORM. IF YOU ARE IN THE STORMS PATH...SEEK SHELTER INDOORS. THIS STORM IS CAPABLE OF PRODUCING HEAVY RAINFALL...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES. AVOID THESE AREAS. HENTZ
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 5:10 PM CDT | Severe Thunderstorm Warning | MKX | Iowa, Lafayette | 65 min |
| Aug 21, 5:16 PM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac, Green Lake | 29 min |
| Aug 21, 5:18 PM CDT | Tornado Warning | MKX | Fond du Lac, Green Lake | 57 min |
| Aug 21, 5:25 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Sauk | 50 min |
| Aug 21, 6:17 PM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac, Green Lake | 43 min |
| Aug 21, 6:24 PM CDT | Severe Thunderstorm Warning | MKX | Green | 51 min |
| Aug 21, 6:25 PM CDT | Flash Flood Warning | MKX | Fond du Lac | 4 hr |
| Aug 21, 6:42 PM CDT | Severe Thunderstorm Warning | MKX | Rock | 48 min |
| Aug 21, 6:57 PM CDT | Special Marine Warning | MKX | 93 min | |
| Aug 21, 6:57 PM CDT | Special Marine Warning | MKX | 93 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2002Every severe thunderstorm warning in 2002
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.