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, 4:12 AM CDT for Eau Claire County, Wisconsin. It was in force for 33 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, 4:12 AM CDT (09:12 UTC)
- Expired
- Jun 17, 2021, 4:45 AM CDT
- In force
- 33 min
- Issued by
- NWS Twin Cities, MN
County Eau Claire County, WI
The radar
The La Crosse radar (KARX), 96 km from the middle of the area, began a volume at 09:13 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, 9.2 hours before the alert went out and 200 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.
075
WWUS83 KMPX 170912
SPSMPX
Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
412 AM CDT Thu Jun 17 2021
WIZ028-170945-
Eau Claire-
412 AM CDT Thu Jun 17 2021
...A STRONG THUNDERSTORM WILL AFFECT EASTERN EAU CLAIRE COUNTY...
At 411 AM CDT, a strong thunderstorm was located over Fall Creek, or
11 miles southeast of Eau Claire, moving southeast at 40 mph.
Winds in excess of 30 mph and dime size hail are possible with this
storm.
Locations impacted include...
Augusta, Fall Creek, Fairchild and Lake Eau Claire County Park.
LAT...LON 4460 9102 4459 9105 4476 9134 4486 9127
4478 9092 4460 9092
TIME...MOT...LOC 0911Z 294DEG 34KT 4478 9125
$$
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, 3:21 AM CDT | Special Weather Statement | MPX | Pepin | 39 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.