Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 21, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Apr 17, 2004, 11:18 PM CDT for Richland County, Wisconsin. It was in force for 87 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 17, 2004, 11:18 PM CDT (04:18 UTC)
- Expired
- Apr 18, 2004, 12:45 AM CDT
- In force
- 87 min
- Issued by
- NWS La Crosse, WI
- Area
- Counties, with a storm outline in the text
County Richland County, WI
The radar
The La Crosse radar (KARX), 72 km from the middle of the area, began a volume at 04:20 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 17, 10:05 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 4.3 hours before the alert went out and 201 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
- 1784 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 1933 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 208 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KARX 180418 SVRARX WIC103-180545- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LA CROSSE WI 1119 PM CDT SAT APR 17 2004 THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... RICHLAND COUNTY IN SOUTHWEST WISCONSIN * UNTIL 1245 AM CDT * AT 1119 PM CDT...WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM PRODUCING LARGE HAIL 7 MILES WEST OF JIMTOWN...OR ABOUT 17 MILES SOUTH OF VIROQUA. THE SEVERE THUNDERSTORM WAS MOVING EAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... EXCELSIOR BY 1125 PM CDT... JIMTOWN BY 1130 PM CDT... BOSSTOWN AND SYLVAN BY 1135 PM CDT... BABB RIDGE AND SABIN BY 1140 PM CDT... NEVELS CORNERS AND ASH RIDGE BY 1145 PM CDT... THIS SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING NICKEL SIZE HAIL. FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS AND STAY AWAY FROM WINDOWS. A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT SUNDAY MORNING FOR NORTHEASTERN IOWA AND SOUTHEAST MINNESOTA AND SOUTHWESTERN WISCONSIN. LAT...LON 4354 9065 4323 9064 4331 9023 4354 9022 $$ KRC &
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 9:47 PM CDT | Severe Thunderstorm Warning | ARX | La Crosse | 28 min |
| Apr 17, 10:08 PM CDT | Severe Thunderstorm Warning | ARX | Monroe | 52 min |
| Apr 17, 10:21 PM CDT | Severe Thunderstorm Warning | ARX | Crawford, Vernon | 84 min |
| Apr 17, 10:44 PM CDT | Severe Thunderstorm Warning | ARX | Juneau | 76 min |
| Apr 17, 11:14 PM CDT | Severe Thunderstorm Warning | ARX | Clark, Taylor | 61 min |
| Apr 18, 2:27 AM CDT | Severe Thunderstorm Warning | ARX | Buffalo | 48 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2004Every severe thunderstorm warning in 2004
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; radar from the NEXRAD Level II archive.