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 Jul 6, 2021, 2:49 PM CDT for Eau Claire County, Wisconsin. It was in force for 41 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 6, 2021, 2:49 PM CDT (19:49 UTC)
- Expired
- Jul 6, 2021, 3:30 PM CDT
- In force
- 41 min
- Issued by
- NWS Twin Cities, MN
County Eau Claire County, WI
The radar
The La Crosse radar (KARX), 93 km from the middle of the area, began a volume at 19:49 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 |
|---|---|---|---|
| Jul 6, 3:10 PM CDT | TSTM WND DMG | 12 Ssw Fall Creek, WI | 18 INCH DIAMETER TREE DOWN, TIME ESTIMATED VIA RADAR. RELAYED TO NWS THROUGH EAU CLAIRE CO DISPATCH. |
| Jul 6, 3:15 PM CDT | TSTM WND DMG | 10 Wsw Augusta, WI | TREES OF VARIOUS SIZE DOWN ALONG HIGHWAY 53, TIME ESTIMATED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 7.8 hours before the alert went out and 184 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
- 214 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 1752 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted.
918 WWUS83 KMPX 061949 SPSMPX Special Weather Statement National Weather Service Twin Cities/Chanhassen MN 249 PM CDT Tue Jul 6 2021 WIZ028-062030- Eau Claire- 249 PM CDT Tue Jul 6 2021 ...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN EAU CLAIRE COUNTY... At 249 PM CDT, a strong thunderstorm was located near Strum, or 15 miles east of Mondovi, moving east at 35 mph. Winds in excess of 40 mph and pea size hail are possible with this storm. Locations impacted include... Augusta, Fairchild, Foster, Lake Eau Claire County Park, Brackett and Allen. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. LAT...LON 4460 9152 4467 9155 4483 9092 4460 9093 TIME...MOT...LOC 1949Z 253DEG 31KT 4462 9137 $$ NDC
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 3:51 PM CDT | Special Weather Statement | MPX | Martin | 39 min |
| Jul 6, 4:13 PM CDT | Special Weather Statement | MPX | Martin | 32 min |
| Jul 6, 6:06 PM CDT | Special Weather Statement | MPX | Freeborn | 39 min |
| Jul 6, 3:20 PM CDT | Severe Thunderstorm Warning | MPX | Eau Claire | 10 min |
| Jul 6, 6:10 PM CDT | Special Weather Statement | MPX | Pepin | 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.