Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 114, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 20, 1998, 11:49 PM CDT for Washington County, Wisconsin. It was in force for 61 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
- Jul 20, 1998, 11:49 PM CDT (04:49 UTC)
- Expired
- Jul 21, 1998, 12:50 AM CDT
- In force
- 61 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 04:49 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 |
|---|---|---|---|
| Jul 21, 12:02 AM CDT | Thunderstorm Wind 52 | Slinger, 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, 4.8 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
- 287 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 1841 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
082 WUUS1 KMKE 210451 RRA SVRMKE WIC131-210550- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 1149 PM CDT MON JUL 20 1998 THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN WI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WASHINGTON COUNTY IN SOUTHEASTERN WISCONSIN * UNTIL 1250 AM CDT * AT 1149 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR MAYVILLE ABOUT 25 MILES EAST OF BEAVER DAM... MOVING SOUTHEAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... SLINGER AT 1210 AM CDT WEST BEND AT 1220 AM CDT IF YOU ARE IN THESE AREAS... SEEK SAFETY IN A SMALL INTERIOR ROOM AWAY FROM WINDOWS. A BASEMENT OFFERS THE BEST PROTECTION. SEVERE THUNDERSTORMS WILL OCCASIONALLY PRODUCE TORNADOES.
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, Jul 20, 7:06 PM CDT, 4 hours 43 minutes before
WIZ046-047-051-056-057-062-063-067-210040- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 706 PM CDT MON JUL 20 1998 THE SEVERE THUNDERSTORM WATCH HAS BEEN DROPPED FOR THE FOLLOWING COUNTIES... FOND DU LAC...DANE...GREEN LAKE...MARQUETTE...COLUMBIA... LAFAYETTE...IOWA AND SAUK. DAVIS
Special weather statement, Jul 20, 7:06 PM CDT, 4 hours 43 minutes before
WIZ046-047-051-056-057-062-063-067-210040- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 706 PM CDT MON JUL 20 1998 THE SEVERE THUNDERSTORM WATCH HAS BEEN DROPPED FOR THE FOLLOWING COUNTIES... FOND DU LAC...DANE...GREEN LAKE...MARQUETTE...COLUMBIA... LAFAYETTE...IOWA AND SAUK. DAVIS
Special weather statement, Jul 20, 8:10 PM CDT, 3 hours 39 minutes before
WIZ058-059-064-065-068>070-210200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 810 PM CDT MON JUL 20 1998 THE REMAINDER OF SEVERE THUNDERSTORM WATCH 760 HAS BEEN CANCELLED. ALTHOUGH THUNDERSTORMS LINGER OVER SOUTHERN WISCONSIN THE THREAT OF SEVERE WEATHER HAS ENDED. NO WATCHES ARE IN EFFECT ACROSS WISCONSIN. DAVIS
Special weather statement, Jul 20, 8:10 PM CDT, 3 hours 39 minutes before
WIZ058-059-064-065-068>070-210200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 810 PM CDT MON JUL 20 1998 THE REMAINDER OF SEVERE THUNDERSTORM WATCH 760 HAS BEEN CANCELLED. ALTHOUGH THUNDERSTORMS LINGER OVER SOUTHERN WISCONSIN THE THREAT OF SEVERE WEATHER HAS ENDED. NO WATCHES ARE IN EFFECT ACROSS WISCONSIN. DAVIS
Local storm report, Jul 20, 9:20 PM CDT, 2 hours 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
920 PM CDT MON JUL 20 1998
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0607 PM WATERLOO WI WIND DAMAGE
07/20/98 JEFFERSON TREE BRANCHES AND WIRES
DOWNED. SHERIFF RPT.
0615 PM NR POYNETTE WI WIND DAMAGE
07/20/98 COLUMBIA TREES AND LIMBS DOWNED
0620 PM JOHNSON CREEK WI .75 INCH HAIL
07/20/98 JEFFERSON DIME SIZE HAIL. TREE LIMBS
AND POWER LINES DOWNED.
0623 PM OREGON WI 1 INCH HAIL
07/20/98 DANE
0640 PM MONROE WI WIND DAMAGE
07/20/98 GREEN TREES AND POWER LINES
DOWNED ACROSS ENTIRE
COUNTY.
0645 PM BELLVILLE WI WIND DAMAGE
07/20/98 DANE TREES DOWNED.
0658 PM JANESVILLE WI 60 MPH WIND GUST
07/20/98 ROCK GUST REPORTED BY HAM
0653 PM IOXINIA WI WIND DAMAGE
07/20/98 JEFFERSON TREES AND POWER
LINES DOWNED.
0650 PM DELAFIELD WI 70 MPH WIND GUST
07/20/98 WALWORTH ESTIMATED WIND GUST BY HAM.
TREES DOWNED AND 1/2
DIAMETER HAIL.
0655 PM CLINTON WI 73 MPH WIND GUST
07/20/98 ROCK MEASURED WIND GUST BY HAM.
0659 PM WAUKESHA WI 1 INCH HAIL
07/20/98 WAUKESHA VOLUNTEER SPOTTER.
0701 PM JANESVILLE WI WIND DAMAGE
07/20/98 ROCK 8 INCH DIAMETER TREES
DOWNED. HAM REPORT.
0703 PM DELAVAN WI 60 MPH WIND GUST
07/20/98 WALWORTH WIND REPORT BY HAM. TREES
ALSO DOWNED AT 710 PM.
0710 PM PEWAUKEE WI WIND DAMAGE
07/20/98 WAUKESHA LOTS OF TREES AND POWER
LINES DOWNED. POLICE RPT.
0710 PM MILWAUKEE WI WIND DAMAGE
07/20/98 MILWAUKEE *** 1 INJ ***
PERSON INJURED BY FELLED
TREE.
0710 PM MILTON WI 69 MPH WIND GUST
07/20/98 ROCK MEASURED GUST AT AUTOMATED
WEATHER STATION.
0710 PM LAKE GENEVA WI 100 MPH WIND GUST
07/20/98 WALWORTH *** 1 INJ ***
MEASURED WIND GUST AT
AIRPORT. ROOFS OFF SOME
HOMES AND TREES ON HOMES.
PERSON IN VEHICLE INJURED
WHEN TREE FELL ON IT.
0745 PM SILVER LAKE WI WIND DAMAGE
07/20/98 KENOSHA TREES AND WIRES DOWNED OVER
WESTERN PART OF KENOSHA
COUNTY.
KAPELALocal storm report, Jul 20, 9:20 PM CDT, 2 hours 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
920 PM CDT MON JUL 20 1998
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0607 PM WATERLOO WI WIND DAMAGE
07/20/98 JEFFERSON TREE BRANCHES AND WIRES
DOWNED. SHERIFF RPT.
0615 PM NR POYNETTE WI WIND DAMAGE
07/20/98 COLUMBIA TREES AND LIMBS DOWNED
0620 PM JOHNSON CREEK WI .75 INCH HAIL
07/20/98 JEFFERSON DIME SIZE HAIL. TREE LIMBS
AND POWER LINES DOWNED.
0623 PM OREGON WI 1 INCH HAIL
07/20/98 DANE
0640 PM MONROE WI WIND DAMAGE
07/20/98 GREEN TREES AND POWER LINES
DOWNED ACROSS ENTIRE
COUNTY.
0645 PM BELLVILLE WI WIND DAMAGE
07/20/98 DANE TREES DOWNED.
0658 PM JANESVILLE WI 60 MPH WIND GUST
07/20/98 ROCK GUST REPORTED BY HAM
0653 PM IOXINIA WI WIND DAMAGE
07/20/98 JEFFERSON TREES AND POWER
LINES DOWNED.
0650 PM DELAFIELD WI 70 MPH WIND GUST
07/20/98 WALWORTH ESTIMATED WIND GUST BY HAM.
TREES DOWNED AND 1/2
DIAMETER HAIL.
0655 PM CLINTON WI 73 MPH WIND GUST
07/20/98 ROCK MEASURED WIND GUST BY HAM.
0659 PM WAUKESHA WI 1 INCH HAIL
07/20/98 WAUKESHA VOLUNTEER SPOTTER.
0701 PM JANESVILLE WI WIND DAMAGE
07/20/98 ROCK 8 INCH DIAMETER TREES
DOWNED. HAM REPORT.
0703 PM DELAVAN WI 60 MPH WIND GUST
07/20/98 WALWORTH WIND REPORT BY HAM. TREES
ALSO DOWNED AT 710 PM.
0710 PM PEWAUKEE WI WIND DAMAGE
07/20/98 WAUKESHA LOTS OF TREES AND POWER
LINES DOWNED. POLICE RPT.
0710 PM MILWAUKEE WI WIND DAMAGE
07/20/98 MILWAUKEE *** 1 INJ ***
PERSON INJURED BY FELLED
TREE.
0710 PM MILTON WI 69 MPH WIND GUST
07/20/98 ROCK MEASURED GUST AT AUTOMATED
WEATHER STATION.
0710 PM LAKE GENEVA WI 100 MPH WIND GUST
07/20/98 WALWORTH *** 1 INJ ***
MEASURED WIND GUST AT
AIRPORT. ROOFS OFF SOME
HOMES AND TREES ON HOMES.
PERSON IN VEHICLE INJURED
WHEN TREE FELL ON IT.
0745 PM SILVER LAKE WI WIND DAMAGE
07/20/98 KENOSHA TREES AND WIRES DOWNED OVER
WESTERN PART OF KENOSHA
COUNTY.
KAPELAThe office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 10:22 PM CDT | Severe Thunderstorm Warning | MKX | Green Lake | 53 min |
| Jul 20, 10:39 PM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac, Green Lake | 61 min |
| Jul 20, 11:21 PM CDT | Severe Thunderstorm Warning | MKX | Dodge | 64 min |
| Jul 21, 12:18 AM CDT | Severe Thunderstorm Warning | MKX | Ozaukee | 42 min |
| Jul 21, 1:01 PM CDT | Severe Thunderstorm Warning | MKX | Rock, Walworth | 64 min |
| Jul 21, 1:32 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Racine | 63 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; radar from the NEXRAD Level II archive.