Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 10, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at May 22, 1991, 4:13 PM CDT for Jefferson County, Wisconsin. It was in force for 47 min.
The area
The counties it named.
The facts
- Issued
- May 22, 1991, 4:13 PM CDT (21:13 UTC)
- Expired
- May 22, 1991, 5:00 PM CDT
- In force
- 47 min
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
County Jefferson County, WI
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.2 hours before the alert went out and 171 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
- NaN m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, May 22, 11:02 AM CDT, 5 hours 11 minutes before
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</html>Special weather statement, May 22, 11:06 AM CDT, 5 hours 7 minutes before
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</html>Special weather statement, May 22, 11:42 AM CDT, 4 hours 31 minutes before
WIZ012-013-016-017-019-020-221730- SPECIAL WEATHER STATEMENT AND SHORT RANGE WEATHER SUMMARY NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 1140 AM CDT WED MAY 22 1991 ...SLOW MOVING THUNDERSTORMS SPREADING ACROSS SOUTHEASTERN WISCONSIN... A NEWLY DEVELOPED LINE OF THUNDERSTORMS EXTENDED FROM NEAR WAUWATOSA IN WESTERN MILWAUKEE COUNTY TO NEAR BURLINGTON IN WESTERN RACINE COUNTY. AT 1140...RADAR SHOWED THESE STORMS MOVING SLOWLY NORTHEAST AT 15 MILES AN HOUR AND WILL AFFECT THE MILWAUKEE METROPOLITAN AREA AS WELL AS CENTRAL RACINE AND KENOSHA COUNTIES THROUGH 1 PM. OCCASIONAL LIGHTNING AND VERY HEAVY RAINS CAN BE EXPECTED WITH THESE THUNDERSTORMS. RESIDENTS OF SOUTHEAST WISCONSIN SHOULD EXPECT BRIEFLY REDUCED VISIBILITIES AND PONDING OF WATER NEAR THESE STORMS. SOME LOCALIZED FLOODING IS ALSO POSSIBLE. OTHER SHOWERS AND THUNDERSTORMS WERE OVER EASTERN FOND DU LAC...WESTERN SHEBOYGAN AND NORTHERN WASHINGTON COUNTIES. THESE ARE ALSO MOVING NORTHEAST AT 15 MILES AN HOUR. KAVINSKY
Special weather statement, May 22, 12:49 PM CDT, 3 hours 24 minutes before
WIZ012-013-016-017-019-020-221900- SPECIAL WEATHER STATEMENT AND SHORT RANGE WEATHER SUMMARY NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 1245 PM CDT WED MAY 22 1991 ...SLOW MOVING THUNDERSTORMS OVER THE MILWAUKEE METRO AREA... A LARGE BUT SLOW MOVING CLUSTER OF THUNDERSTORMS BLANKETED ALL OF MILWAUKEE COUNTY AND PORTIONS OF NEARBY COUNTIES. THE THUNDERSTORMS EXTENDED FROM NEAR GERMANTOWN IN SOUTHERN WASHINGTON COUNTY THROUGH MILWAUKEE COUNTY TO NEAR UNION GROVE IN NORTHERN KENOSHA COUNTY. THE STORMS WERE MOVING NORTHEAST AT 15 MILES AN HOUR. OTHER SCATTERED SHOWERS AND THUNDERSTORMS WERE OVER SHEBOYGAN COUNTY...JUST WEST OF SHEBOYGAN. FREQUENT LIGHTNING AND HEAVY RAINS CAN BE EXPECTED WITH THESE STORMS. DUE TO THE SLOW MOVEMENT AND HIGH MOISTURE CONTENT OF THE AIR...SOME OF THE STORMS MAY PRODUCE LOCALIZED FLOODING. PERSONS IN SOUTHEAST WISCONSIN SHOULD EXPECT BRIEFLY REDUCED VISIBILITIES IN AREAS OF HEAVY RAINFALL AND PONDING OF WATER ON AREA ROADS. DO NOT DRIVE THROUGH A FLOODED ROADWAY. KAVINSKY
Special weather statement, May 22, 3:23 PM CDT, 50 minutes before
WIZ017-020-222230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 324 PM CDT WED MAY 22 1991 THE URBAN AND SMALL STREAM FLOOD ADVISORY ISSUED EARLIER THIS AFTERNOON FOR PARTS OF SOUTHEAST WISCONSIN...INCLUDING MILWAUKEE AND RACINE COUNTIES...IS NO LONGER IN EFFECT. THE THUNDERSTORMS THAT MOVED THROUGH THE MILWAUKEE AREA EARLIER THIS AFTERNOON HAVE NOW DIMINISHED OR ENDED. RAINFALL AT MITCHELL INTERNATIONAL AIRPORT THIS AFTERNOON HAS BEEN AROUND 2 INCHES. MOST OF THAT RAIN FELL BETWEEN NOON AND 1 PM. ADDITIONAL SHOWERS AND THUNDERSTORMS CAN BE EXPECTED JUST ABOUT ANY TIME TONIGHT THROUGH THURSDAY. SOME OF THESE MAY PRODUCE ADDITIONAL LOCALLY HEAVY RAINS <WHICH COULD RESULT IN SOME LOCAL URBAN OR SMALL STREAM FLOODING. HAHN
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 5:13 PM CDT | Tornado Warning | MKX | Waukesha | 27 min |
| May 22, 5:13 PM CDT | Tornado Warning | MKX | Dodge | 47 min |
| May 22, 5:27 PM CDT | Tornado Warning | MKX | Washington | 33 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1991Every severe thunderstorm warning in 1991
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.