Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 6, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Mar 29, 1998, 2:56 PM CST for La Crosse County, Trempealeau County, Wisconsin; Winona County, Minnesota. It was in force for 34 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
- Mar 29, 1998, 2:56 PM CST (20:56 UTC)
- Expired
- Mar 29, 1998, 3:30 PM CST
- In force
- 34 min
- Issued by
- NWS La Crosse, WI
- Area
- Whole counties
Counties Winona County, MN, La Crosse County, WI, Trempealeau County, WI
The radar
The La Crosse radar (KARX), 33 km from the middle of the area, began a volume at 20:59 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 |
|---|---|---|---|
| Mar 29, 3:05 PM CST | Hail 1 | Barre Mills, WI | |
| Mar 29, 3:10 PM CST | Hail 0.75 | Osseo, 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 |
|---|---|---|---|
| Mar 29, 11:00 AM CST | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 29, 2:00 PM CST | Tornado Watch | SPC | 6 hr |
| Mar 29, 2:45 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 8.9 hours before the alert went out and 194 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
- 551 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 251 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
348
WUUS1 KLSE 292057 RRA
SVRLSE
MNC169-WIC063-121-292130-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
256 PM CST SUN MAR 29 1998
* SEVERE THUNDERSTORM WARNING FOR
SOUTHERN TREMPEALEAU COUNTY - WEST CENTRAL WISCONSIN
LA CROSSE COUNTY - WEST CENTRAL WISCONSIN
SOUTHEASTERN WINONA COUNTY - SOUTHEASTERN MINNESOTA
* UNTIL 330 PM CST
* SOME LOCATIONS AFFECTED
HOLMEN
TREMPEALEAU
GALESVILLE
* AT 255 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 20 MILES NORTHWEST OF LA CROSSE...NEAR
NODINE MINNESOTA. THE STORM WAS MOVING NORTHEAST AT 40 MPH.
* THE STORM WILL BE NEAR HOLMEN BY 310 PM.
THIS IS A DANGEROUS STORM WITH HAIL LARGER THAN AN INCH IN
DIAMETER. DO NOT GO OUTDOORS.
A TORNADO WATCH IS ALSO IN EFFECT. REMEMBER...SEVERE THUNDERSTORMS
CAN PRODUCE TORNADOES. TAKE SHELTER IMMEDIATELY IN A STRONG
BUILDING.
DBWhat 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.
NWS La Crosse, WI wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 29, 2:45 AM CST, 12 hours 11 minutes earlier.
Area forecast discussion, Mar 29, 2:45 AM CST, 12 hours 11 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LA CROSSE WI 245 AM CST SUN MAR 29 1998 FORECAST CONCERNS TODAY...SHRA/TSRA CHANCES...TIMING AND INTENSITY... HIGH TEMPERATURES. 07Z SURFACE ANALYSIS HAD A LOW IN NORTHEAST CO...WITH A WARM FRONT EXTENDING EAST INTO NORTHERN MO. ELEVATED SHRA/TSRA WERE DEVELOPING IN A STRONG 850-700MB WARM ADVECTION/THETA-E CONVERGENCE ZONE ACROSS NORTHERN IA EARLY THIS MORNING. THESE SHOWERS WERE PUSHING RAPIDLY NORTHEAST ACROSS THE FORECAST AREA. 00Z ETA MODEL OF CHOICE THIS RUN AS IT HAD THE BEST HANDLE ON THE PRECIPITATION ACROSS SD/MN/IA AT 06Z. THE WARM FRONT TO PUSH NORTH TO NEAR A KMSP-KMKE LINE BY 00Z. ISENTROPIC ANALYSIS FROM ETA INDICATES THE STRONG 850-700MB LIFTING REMAINS ACROSS THE FORECAST AREA FOR MUCH OF THE DAY...MOVING NORTH OF THE AREA LATE AS THE WARM FRONT PUSHES NORTH. BETTER UPPER LEVEL DIVERGENCE ASSOCIATED WITH THE APPROACHING JET MOVES ACROSS THE AREA DURING THE AFTERNOON. WITH INCREASING LOW LEVEL MOISTURE...INSTABILITY AND HELICITY THRU THE DAY...DAY 1 MODERATE RISK LOOKS REASONABLE. GREATEST THREAT APPEARS LATE IN THE DAY INTO THE EARLY EVENING HOURS. A CONCERN IS...WITH MODERATE TO STRONG RISING MOTION ACROSS THE AREA FOR MUCH OF THE DAY...ELEVATED CONVECTION MAY FIRE EARLY AND REPEATEDLY THRU THE DAY RELEASING THE INSTABILITY IN SMALLER DOSES...ESPECIALLY FURTHER NORTH OF THE WARM FRONT. THIS MAY KEEP STORM INTENSITY DOWN SOME ACROSS THE NORTH PART OF THE FORECAST AREA UNTIL LATE IN THE DAY. AVN-FAN POPS IN THE LIKELY CATEGORY AND PREFERRED OVER THE MORE CHANCE TYPE NGM-FWC POPS. 00Z FWC/FAN/ETA 2M GRIDPOINT GUIDANCE TEMPERATURES ALL REASONABLY SIMILAR. WARMER ETA 2M TEMPS PREFERRED ACROSS THE SOUTH END OF THE FORECAST AREA WHERE THE WARM FRONT TO PUSH THRU EARLIER AND SOME SUN MORE LIKELY. COORD WITH KGRB. RRS
In the hours before
Local storm report, Mar 29, 1:07 PM CST, 1 hour 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
107 PM CST SUN MAR 29 1998
TIME(CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0947 AM WADENA IA .75 INCH HAIL
03/29/98 FAYETTE DIME SIZED HAIL COVERING
THE GROUND
1005 AM 2N ST OLAF IA .75 INCH HAIL
03/29/98 CLAYTON
1005 AM NEW MINER WI 1.75 INCH HAIL
03/29/98 JUNEAU
1027 AM 3S NEW ROME WI WIND DAMAGE
03/29/98 ADAMS TREES DOWN
1030 AM NEW ROME WI 1.75 INCH HAIL J
03/29/98 ADAMS
NELSONLocal storm report, Mar 29, 1:07 PM CST, 1 hour 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
107 PM CST SUN MAR 29 1998
TIME(CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0947 AM WADENA IA .75 INCH HAIL
03/29/98 FAYETTE DIME SIZED HAIL COVERING
THE GROUND
1005 AM 2N ST OLAF IA .75 INCH HAIL
03/29/98 CLAYTON
1005 AM NEW MINER WI 1.75 INCH HAIL
03/29/98 JUNEAU
1027 AM 3S NEW ROME WI WIND DAMAGE
03/29/98 ADAMS TREES DOWN
1030 AM NEW ROME WI 1.75 INCH HAIL J
03/29/98 ADAMS
NELSONLocal storm report, Mar 29, 2:44 PM CST, 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
244 PM CST SUN MAR 29 1998
TIME(CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0218 PM NEAR MEDFORD WI 1 INCH HAIL
03/29/98 TAYLOR
TMCLocal storm report, Mar 29, 2:44 PM CST, 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
244 PM CST SUN MAR 29 1998
TIME(CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0218 PM NEAR MEDFORD WI 1 INCH HAIL
03/29/98 TAYLOR
TMCThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 10:05 AM CST | Severe Thunderstorm Warning | ARX | Juneau | 25 min |
| Mar 29, 10:24 AM CST | Severe Thunderstorm Warning | ARX | Adams | 31 min |
| Mar 29, 2:18 PM CST | Severe Thunderstorm Warning | ARX | Taylor | 47 min |
| Mar 29, 2:38 PM CST | Severe Thunderstorm Warning | ARX | Buffalo | 57 min |
| Mar 29, 3:01 PM CST | Severe Thunderstorm Warning | ARX | Trempealeau | 29 min |
| Mar 29, 3:14 PM CST | Severe Thunderstorm Warning | ARX | Jackson, Monroe | 61 min |
| Mar 29, 4:45 PM CST | Severe Thunderstorm Warning | ARX | Buffalo | 60 min |
| Mar 29, 5:16 PM CST | Tornado Warning | ARX | Buffalo | 14 min |
| Mar 29, 3:31 PM CST | Severe Thunderstorm Warning | ARX | Dodge, Mower | 44 min |
| Mar 29, 3:56 PM CST | Severe Thunderstorm Warning | ARX | Olmsted | 64 min |
| Mar 29, 4:13 PM CST | Tornado Warning | ARX | Dodge | 47 min |
| Mar 29, 4:18 PM CST | Severe Thunderstorm Warning | ARX | Wabasha | 57 min |
| Mar 29, 4:39 PM CST | Tornado Warning | ARX | Wabasha | 51 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1998Severe Thunderstorm Warnings in Minnesota, 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.