Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 82, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Aug 21, 2002, 8:01 PM CDT for Washington County, Wisconsin. It was in force for 14 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
- Aug 21, 2002, 8:01 PM CDT (01:01 UTC)
- Expired
- Aug 21, 2002, 8:15 PM CDT
- In force
- 14 min
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
County Washington County, WI
The radar
The Milwaukee radar (KMKX), 52 km from the middle of the area, began a volume at 01:01 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, 8:07 PM CDT | Thunderstorm Wind 56 E | Germantown, WI | |
| Aug 21, 8:15 PM CDT | Thunderstorm Wind 52 E | West Bend, 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
Green Bay/Straub, WI (KGRB), launched 00:00Z, 1.0 hours before the alert went out and 124 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
- 216 J/kg
- Mixed-layer CIN
- -110 J/kg
- Mixed-layer LCL
- 665 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 163 m²/s²
- 0-3 km storm-relative helicity
- 257 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.9
The text
As transmitted, in the capitals the NWS used until 2016.
597 WUUS53 KMKX 220101 SVRMKE WIC131-220115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 801 PM CDT WED AUG 21 2002 THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WASHINGTON COUNTY IN SOUTHEAST WISCONSIN * UNTIL 815 PM CDT * AT 801 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES NORTHWEST OF GERMANTOWN...MOVING EAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... RURAL WASHINGTON COUNTY AT 810 PM CDT IF YOU ARE IN THE PATH OF THIS STORM...YOU SHOULD PREPARE FOR DAMAGING WINDS IN EXCESS OF 60 MPH...LARGE HAIL...AND DEADLY LIGHTNING. SEEK SHELTER IMMEDIATELY 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. MK
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 7:16 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Jefferson | 59 min |
| Aug 21, 7:25 PM CDT | Special Marine Warning | MKX | 65 min | |
| Aug 21, 7:25 PM CDT | Special Marine Warning | MKX | 65 min | |
| Aug 21, 7:29 PM CDT | Severe Thunderstorm Warning | MKX | Walworth | 61 min |
| Aug 21, 7:48 PM CDT | Severe Thunderstorm Warning | MKX | Waukesha | 27 min |
| Aug 21, 8:00 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Racine | 60 min |
| Aug 21, 8:08 PM CDT | Severe Thunderstorm Warning | MKX | Milwaukee, Ozaukee | 67 min |
| Aug 21, 8:16 PM CDT | Special Marine Warning | MKX | 89 min | |
| Aug 21, 8:16 PM CDT | Special Marine Warning | MKX | 89 min | |
| Aug 21, 8:16 PM CDT | Special Marine Warning | MKX | 89 min | |
| Aug 21, 9:37 PM CDT | Severe Thunderstorm Warning | MKX | Green, Rock | 53 min |
| Aug 22, 4:04 AM CDT | Flash Flood Warning | MKX | Lafayette | 3 hr |
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.