Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 324, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 26, 1998, 12:33 AM CDT for Chippewa County, Eau Claire County, Wisconsin. It was in force for 32 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
- Sep 26, 1998, 12:33 AM CDT (05:33 UTC)
- Expired
- Sep 26, 1998, 1:05 AM CDT
- In force
- 32 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Chippewa County, WI, Eau Claire County, WI
The radar
The La Crosse radar (KARX), 120 km from the middle of the area, began a volume at 05:34 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 |
|---|---|---|---|
| Sep 26, 12:35 AM CDT | Hail 1.75 | Stanley, WI | |
| Sep 26, 12:45 AM CDT | Hail 1.75 | Eau Claire, 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 |
|---|---|---|---|
| Sep 26, 12:00 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 5.6 hours before the alert went out and 183 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
- 1859 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 247 m²/s²
- 0-3 km storm-relative helicity
- 276 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
149
WUUS1 KMSP 260535 RRA
SVRMSP
WIC017-035-260605-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1233 AM CDT SAT SEP 26 1998
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES/CHANHASSEN HAS
ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CHIPPEWA COUNTY IN WEST CENTRAL WISCONSIN
EAU CLAIRE COUNTY IN WEST CENTRAL WISCONSIN
* UNTIL 105 AM CDT
* AT 1232 AM CDT...DOPPLER RADAR INDICATED A SEVERE STORM WITH LARGE
HAIL 5 MILES EAST OF EAU CLAIRE. THE STORMS WERE MOVING NORTHEAST
AT 35 MPH.
* SOME LOCATIONS AFFECTED
CHIPPEWA FALLS
BOYD
CADOTT
STANLEY
AUGUSTA
THIS IS A DANGEROUS STORM...WITH LARGE HAIL. STAY INDOORS AWAY
FROM WINDOWS.
CWSThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 26, 12:18 AM CDT | Severe Thunderstorm Warning | MPX | Polk | 62 min |
| Sep 26, 1:17 AM CDT | Severe Thunderstorm Warning | MPX | Barron | 58 min |
| Sep 26, 1:23 AM CDT | Severe Thunderstorm Warning | MPX | Polk | 32 min |
| Sep 26, 1:44 AM CDT | Severe Thunderstorm Warning | MPX | Rusk | 61 min |
| Sep 26, 2:17 AM CDT | Severe Thunderstorm Warning | MPX | Barron, Chippewa, Dunn | 58 min |
| Sep 26, 2:44 AM CDT | Severe Thunderstorm Warning | MPX | Rusk | 31 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 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.