Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 12, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Apr 17, 2004, 11:20 PM CDT for Chippewa County, Wisconsin. It was in force for 55 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, 11:20 PM CDT (04:20 UTC)
- Expired
- Apr 18, 2004, 12:15 AM CDT
- In force
- 55 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
County Chippewa County, WI
The radar
The La Crosse radar (KARX), 147 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 nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 4.3 hours before the alert went out and 180 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
- 2026 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 489 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
462
WUUS53 KMPX 180420
SVRMPX
WIC017-180515-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1121 PM CDT SAT APR 17 2004
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CHIPPEWA COUNTY IN WEST CENTRAL WISCONSIN
* UNTIL 1215 AM CDT
* AT 1121 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE
HAIL 7 MILES SOUTHWEST OF BLOOMER...OR ABOUT 13 MILES NORTHWEST OF
CHIPPEWA FALLS...MOVING NORTHEAST AT 20 MPH.
* LOCATIONS IMPACTED INCLUDE...
BLOOMER.
CORNELL.
THIS IS A DANGEROUS STORM WITH LARGE HAIL...STAY INDOORS AWAY FROM
WINDOWS.
LAT...LON 4511 9164 4492 9164 4512 9096 4528 9095
4529 9126
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 10:47 PM CDT | Severe Thunderstorm Warning | MPX | Eau Claire | 28 min |
| Apr 18, 1:23 AM CDT | Severe Thunderstorm Warning | MPX | Pierce | 67 min |
| Apr 18, 1:34 AM CDT | Severe Thunderstorm Warning | MPX | Barron | 41 min |
| Apr 18, 1:52 AM CDT | Severe Thunderstorm Warning | MPX | Saint Croix | 38 min |
| Apr 18, 1:57 AM CDT | Severe Thunderstorm Warning | MPX | Pepin | 48 min |
| Apr 18, 1:59 AM CDT | Severe Thunderstorm Warning | MPX | Rusk | 46 min |
| Apr 18, 2:09 AM CDT | Severe Thunderstorm Warning | MPX | Dunn | 51 min |
| Apr 18, 2:16 AM CDT | Severe Thunderstorm Warning | MPX | Barron | 29 min |
| Apr 18, 2:24 AM CDT | Severe Thunderstorm Warning | MPX | Saint Croix | 36 min |
| Apr 18, 2:42 AM CDT | Severe Thunderstorm Warning | MPX | Eau Claire, Pepin | 48 min |
| Apr 18, 7:24 AM CDT | Severe Thunderstorm Warning | MPX | Polk | 36 min |
| Apr 18, 4:42 PM CDT | Severe Thunderstorm Warning | MPX | Polk | 48 min |
| Apr 18, 6:16 PM CDT | Severe Thunderstorm Warning | MPX | Polk | 44 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.