Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 30, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at May 31, 1998, 1:01 AM CDT for Sauk County, Wisconsin. It was in force for 89 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
- May 31, 1998, 1:01 AM CDT (06:01 UTC)
- Expired
- May 31, 1998, 2:30 AM CDT
- In force
- 89 min
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
County Sauk County, WI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 31, 1:30 AM CDT | Thunderstorm Wind | Countywide, 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 |
|---|---|---|---|
| May 31, 1:00 AM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 6.0 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
- 450 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 891 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 358 m²/s²
- 0-3 km storm-relative helicity
- 509 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 9.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMKE 310601 SVRMKE WIC111-310730- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 101 AM CDT SUN MAY 31 1998 THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN WI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SAUK COUNTY IN SOUTH CENTRAL WISCONSIN * UNTIL 230 AM CDT * AT 100 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM TOMAH IN MONROE COUNTY TO WESTBY IN VERNON COUNTY...MOVING EAST AT 50 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... REEDSBURG AT 125 AM CDT WISCONSIN DELLS AT 130 AM CDT BARABOO AT 135 AM CDT A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER THAT SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES. IF YOU ARE IN THESE AREAS... SEEK SAFETY IN A SMALL INTERIOR ROOM AWAY FROM WINDOWS. A BASEMENT OFFERS THE BEST PROTECTION. EISE/HENTZ
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 1:10 AM CDT | Severe Thunderstorm Warning | MKX | Columbia, Green Lake, Marquette | 80 min |
| May 31, 1:15 AM CDT | Severe Thunderstorm Warning | MKX | Iowa | 90 min |
| May 31, 1:28 AM CDT | Severe Thunderstorm Warning | MKX | Dane | 92 min |
| May 31, 1:28 AM CDT | Severe Thunderstorm Warning | MKX | Lafayette | 92 min |
| May 31, 1:46 AM CDT | Severe Thunderstorm Warning | MKX | Dodge, Fond du Lac | 89 min |
| May 31, 1:50 AM CDT | Severe Thunderstorm Warning | MKX | Green | 70 min |
| May 31, 1:57 AM CDT | Severe Thunderstorm Warning | MKX | Jefferson, Rock | 78 min |
| May 31, 2:15 AM CDT | Severe Thunderstorm Warning | MKX | Sheboygan, Washington | 75 min |
| May 31, 2:15 AM CDT | Severe Thunderstorm Warning | MKX | Waukesha | 75 min |
| May 31, 2:27 AM CDT | Severe Thunderstorm Warning | MKX | Milwaukee, Ozaukee | 78 min |
| May 31, 2:27 AM CDT | Severe Thunderstorm Warning | MKX | Walworth | 78 min |
| May 31, 2:42 AM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Racine | 93 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1998Every severe thunderstorm warning in 1998
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.