Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 12, NWS La Crosse, WI

September 9, 1990Buffalo County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Sep 9, 1990, 7:32 PM CDT for Buffalo County, Wisconsin. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Sep 9, 1990, 7:32 PM CDT (00:32 UTC)
Expired
Sep 9, 1990, 8:30 PM CDT
In force
58 min
Issued by
NWS La Crosse, WI
Area
Whole counties

County Buffalo County, WI

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 0.5 hours before the alert went out and 155 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.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 1990-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1409 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 1990-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1409 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
1075 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
82 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.7

Open this sounding in Storm Lab

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, Sep 9, 6:30 PM CDT, 1 hour 2 minutes before
WIZ010-014-100100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
625 PM CDT SUN SEP P 1990

...SEVERE THUNDERSTORM WATCH FOR MUCH OF THE LA CROSSE AREA UNTIL
1100 PM CDT...

AT 625 PM...A FEW ISOLATED SHOWERS WERE INDICATED OVER SOUTHEAST
MINNESOTA...BUT NO THUNDERSTORM ACTIVITY WAS OCCURING IN THE TRI
STATE AREA.

HOWEVER...A SEVERE THUNDERSTORM WAS OVER NORTHERN PIERCE COUNTY
OF WEST CENTRAL WISCONSIN ABOUT 100 MILES NORTHWEST OF LA CROSSE
...AND MORE THUNDERSTORM ACTIVITY IS EXPECTED TO DEVELOP.

DUE TO THE VERY COLD AIR IN THE UPPER LEVELS OF THE ATMOSPHERE...
THERE IS A GOOD POTENTIAL FOR HAIL WITH ANY THUNDERSTORM THAT DOES
DEVELOP.

PEOPLE IN THE LA CROSSE ARE#A SHOULD SHOULD PULL VEHICLES INTO A
GARAGE IF POSSIBLE.  LISTEN TO RADIO...OR TV OR NOAA WEATHER RADIO
FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

BRUCE
Special weather statement, Sep 9, 6:39 PM CDT, 53 minutes before
WIZ010-014-100100-

SPECIAL WEATHER STATEMENT...CORRECTED DATE...
NATIONAL WEATHER SERVICE LA CROSSE WI
625 PM CDT SUN SEP 9 1990

...SEVERE THUNDERSTORM WATCH FOR MUCH OF THE LA CROSSE AREA UNTIL
1100 PM CDT...

AT 625 PM...A FEW ISOLATED SHOWERS WERE INDICATED OVER SOUTHEAST
MINNESOTA...BUT NO THUNDERSTORM ACTIVITY WAS OCCURING IN THE TRI
STATE AREA.

HOWEVER...A SEVERE THUNDERSTORM WAS OVER NORTHERN PIERCE COUNTY
OF WEST CENTRAL WISCONSIN ABOUT 100 MILES NORTHWEST OF LA CROSSE
...AND MORE THUNDERSTORM ACTIVITY IS EXPECTED TO DEVELOP.

DUE TO THE VERY COLD AIR IN THE UPPER LEVELS OF THE ATMOSPHERE...
THERE IS A GOOD POTENTIAL FOR HAIL WITH ANY THUNDERSTORM THAT DOES
DEVELOP.

PEO0PLE IN THE LA CROSSE AREA SHOULD SHOULD PULL VEHICLES INTO A
GARAGE IF POSSIBLE.  LISTEN TO RADIO...OR TV OR NOAA WEATHER RADIO
FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

BRUCE
Special weather statement, Sep 9, 7:02 PM CDT, 30 minutes before
MNZ019-091330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROCHESTER MN
700 PM CDT SUN SEP 9 1990

...SEVERE THUNDERSTORM WATCH FOR PORTIONS OF SOUTH CENTRAL
MINNESOTA AND ALL OF SOUTHEAST MINNESOTA UNTIL 11PM.

AT 645 PM ROCHESTER WEATHER RADAR INDICATED MAINLY LIGHT SHOWERS
OVER SOUTHEAST MINNESOTA NEAR HARMONY AND PRESTON 30 MILES
SOUTHEAST OF ROCHESTER. ANOTHER SHOWER WAS LOCATED JUST EAST OF
ALBERT LEA. SHOWERS WERE MOVING EAST AT 25 MPH.  NO SEVERE WEATHER
HAS OCCURRED OVER SOUTH CENTRAL AND SOUTHEAST MINNESOTA AS OF 645 PM.

 BELLES

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 9, 8:27 PM CDTSevere Thunderstorm WarningARXBuffalo63 min
Sep 9, 9:06 PM CDTSevere Thunderstorm WarningARXTrempealeau69 min
Sep 9, 9:30 PM CDTSevere Thunderstorm WarningARXLa Crosse60 min
Sep 9, 10:22 PM CDTSevere Thunderstorm WarningARXJackson, Monroe68 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1990Every severe thunderstorm warning in 1990

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.