Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 142, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 18, 2001, 6:06 AM CDT for Polk County, Wisconsin. It was in force for 54 min. 2 reports came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Jun 18, 2001, 6:06 AM CDT (11:06 UTC)
- Expired
- Jun 18, 2001, 7:00 AM CDT
- In force
- 54 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Polk County, WI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 18, 6:20 AM CDT | Hail 1.75 | Frederic, WI | |
| Jun 18, 6:45 AM CDT | Hail 1.75 | Luck, 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 |
|---|---|---|---|
| Jun 18, 5:15 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 11.1 hours before the alert went out and 113 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
- 38 J/kg
- Mixed-layer CIN
- -195 J/kg
- Mixed-layer LCL
- 1536 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 289 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
331 WUUS53 KMPX 181106 SVRMSP WIC095-181200- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 606 AM CDT MON JUN 18 2001 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... POLK COUNTY IN WEST CENTRAL WISCONSIN * UNTIL 700 AM CDT * AT 605 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL JUST EAST OF RUSH CITY... OR ABOUT 15 MILES SOUTHWEST OF GRANTSBURG. THE STORM WAS MOVING SOUTHEAST AT 25 MPH. * SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE... ST CROIX FALLS. MILLTOWN. LUCK. FREDERIC. CENTURIA. BALSAM LAKE. THIS IS A DANGEROUS STORM WITH LARGE HAIL...STAY INDOORS AWAY FROM WINDOWS. LAT...LON 4569 9277 4526 9257 4525 9221 4569 9224 $$ TDK
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 7:35 PM CDT | Severe Thunderstorm Warning | MPX | Pierce | 40 min |
| Jun 17, 7:51 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Pepin | 39 min |
| Jun 18, 6:15 AM CDT | Severe Thunderstorm Warning | MPX | Dunn, Saint Croix | 45 min |
| Jun 18, 6:29 AM CDT | Severe Thunderstorm Warning | MPX | Barron | 46 min |
| Jun 18, 6:58 AM CDT | Severe Thunderstorm Warning | MPX | Polk | 32 min |
| Jun 18, 7:15 AM CDT | Severe Thunderstorm Warning | MPX | Barron | 30 min |
| Jun 18, 8:55 AM CDT | Severe Thunderstorm Warning | MPX | Dunn | 35 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2001Every severe thunderstorm warning in 2001
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.