Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 8, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Feb 11, 1999, 2:58 PM CST for Kenosha County, Milwaukee County, Racine County, Wisconsin. It was in force for 32 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
- Feb 11, 1999, 2:58 PM CST (20:58 UTC)
- Expired
- Feb 11, 1999, 3:30 PM CST
- In force
- 32 min
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
Counties Kenosha County, WI, Milwaukee County, WI, Racine County, WI
The radar
The Milwaukee radar (KMKX), 60 km from the middle of the area, began a volume at 21:01 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 |
|---|---|---|---|
| Feb 11, 3:10 PM CST | Thunderstorm Wind | Rochester, WI | |
| Feb 11, 3:15 PM CST | Thunderstorm Wind 61 | Milwaukee, 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 |
|---|---|---|---|
| Feb 11, 1:00 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.0 hours before the alert went out and 191 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
- 526 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 207 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 KMKE 112057 SVRMKE WIC059-079-101-112130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 258 PM CST THU FEB 11 1999 THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... KENOSHA IN SOUTHEASTERN WISCONSIN MILWAUKEE IN SOUTHEASTERN WISCONSIN RACINE IN SOUTHEASTERN WISCONSIN * UNTIL 330 PM CST * AT 255 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS EXTENDING FROM BROWN DEER IN MLWAUKEE COUNTY TO UNION GROVE IN RACINE COUNTY TO WILMOT IN KENOSHA COUNTY...MOVING NORTHEAST AT 50 MPH. * THE LINE OF SEVERE THUNDERSTORMS...WILL BE AT MILWAUKEE AT 315 PM CST RACINE AT 315 PM CST KENOSHA AT 315 PM CST IF YOU ARE IN THESE AREAS... SEEK SAFETY IN A SMALL INTERIOR ROOM AWAY FROM WINDOWS. A BASEMENT OFFERS THE BEST PROTECTION. $$ SD/REM
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, Feb 11, 12:15 PM CST, 2 hours 43 minutes before
WIZ046-047-051-052-056>060-062>072-112100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 1215 PM CST THU FEB 11 1999 ...SEVERE WEATHER OUTLOOK FOR SOUTH CENTRAL AND SOUTHEAST WISCONSIN... SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP AFTER 300 PM CST ACROSS SOUTHEAST AND SOUTH CENTRAL WISCONSIN. DAMAGING WINDS ARE EXPECTED WITH THESE STORMS. A COLD FRONT MOVING EAST ACROSS WISCONSIN...COMBINED WITH MOIST UNSTABLE AIR AND A STRONG JET STREAM AT THE UPPER LEVELS...WILL PRODUCE SEVERE STORMS THIS AFTERNOON. STAY TUNED TO NOAA WEATHER RADIO AND LOCAL TELEVISION AND RADIO FOR LATER WATCHES...WARNINGS AND STATEMENTS. EISE WWW.CRH.NOAA.GOV/MKX
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 11, 12:26 PM CST | Severe Thunderstorm Warning | MKX | Iowa, Lafayette | 64 min |
| Feb 11, 1:12 PM CST | Severe Thunderstorm Warning | MKX | Sauk | 33 min |
| Feb 11, 1:31 PM CST | Severe Thunderstorm Warning | MKX | Columbia | 44 min |
| Feb 11, 1:41 PM CST | Severe Thunderstorm Warning | MKX | Green Lake, Marquette | 64 min |
| Feb 11, 2:23 PM CST | Severe Thunderstorm Warning | MKX | Jefferson, Walworth | 32 min |
| Feb 11, 2:30 PM CST | Severe Thunderstorm Warning | MKX | Dodge, Waukesha | 45 min |
| Feb 11, 2:40 PM CST | Severe Thunderstorm Warning | MKX | Washington | 40 min |
| Feb 11, 3:01 PM CST | Severe Thunderstorm Warning | MKX | Ozaukee, Sheboygan | 34 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1999Every severe thunderstorm warning in 1999
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.