Alert archive / Wisconsin / Special Weather Statements in 2021
Special Weather Statement, NWS Twin Cities, MN
NWS Twin Cities, MN issued this special weather statement at Jun 17, 2021, 3:21 AM CDT for Pepin County, Wisconsin. It was in force for 39 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
- Jun 17, 2021, 3:21 AM CDT (08:21 UTC)
- Expired
- Jun 17, 2021, 4:00 AM CDT
- In force
- 39 min
- Issued by
- NWS Twin Cities, MN
County Pepin County, WI
The radar
The La Crosse radar (KARX), 94 km from the middle of the area, began a volume at 08:21 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, 8.4 hours before the alert went out and 169 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
- 2464 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 251 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
The text
As transmitted.
541
WWUS83 KMPX 170821
SPSMPX
Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
321 AM CDT Thu Jun 17 2021
WIZ025-026-028-170900-
Dunn-Eau Claire-Pepin-
321 AM CDT Thu Jun 17 2021
...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN PEPIN...
SOUTHEASTERN DUNN AND SOUTHWESTERN EAU CLAIRE COUNTIES...
At 321 AM CDT, a strong thunderstorm was located 9 miles northeast
of Durand, or 12 miles northwest of Mondovi, moving east southeast
at 40 mph.
Winds in excess of 30 mph and half inch hail are possible with this
storm.
Locations impacted include...
Rock Falls, Foster, Caryville and Allen.
LAT...LON 4459 9111 4459 9178 4465 9195 4483 9183
4460 9109
TIME...MOT...LOC 0821Z 291DEG 35KT 4471 9181
$$
LSThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 2:58 AM CDT | Special Weather Statement | MPX | Freeborn | 32 min |
| Jun 17, 3:54 PM CDT | Fire Weather Watch | MPX | Anoka, Benton, Carver, Chippewa, Chisago, Douglas and 20 more | 11 hr |
| Jun 17, 6:38 PM CDT | Severe Thunderstorm Warning | MPX | Le Sueur, Rice, Scott | 52 min |
| Jun 17, 4:12 AM CDT | Special Weather Statement | MPX | Eau Claire | 33 min |
| Jun 17, 6:18 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Eau Claire, Pepin | 27 min |
| Jun 17, 6:20 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Eau Claire | 55 min |
| Jun 17, 6:40 PM CDT | Severe Thunderstorm Warning | MPX | Eau Claire | 35 min |
Nearby
Special Weather Statements in Wisconsin, 2021Every special weather statement in 2021
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.