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 May 24, 2021, 5:38 PM CDT for Chippewa County, Wisconsin. It was in force for 37 min. 1 report 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
- May 24, 2021, 5:38 PM CDT (22:38 UTC)
- Expired
- May 24, 2021, 6:15 PM CDT
- In force
- 37 min
- Issued by
- NWS Twin Cities, MN
County Chippewa County, WI
The radar
The La Crosse radar (KARX), 118 km from the middle of the area, began a volume at 22:38 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 |
|---|---|---|---|
| May 24, 5:49 PM CDT | HAIL 0.7 | 3 Ssw Chippewa Falls, WI | TRAINED SPOTTER REPORTS DIME/PENNY SIZED HAIL (NOT MEASURED) AT 29/40TH. |
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, 10.6 hours before the alert went out and 176 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
- 88 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 781 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 153 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
772 WWUS83 KMPX 242238 SPSMPX Special Weather Statement National Weather Service Twin Cities/Chanhassen MN 538 PM CDT Mon May 24 2021 WIZ027-028-242315- Chippewa-Eau Claire- 538 PM CDT Mon May 24 2021 ...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN CHIPPEWA AND NORTHWESTERN EAU CLAIRE COUNTIES... At 538 PM CDT, a strong thunderstorm was located over Lake Hallie, or over Eau Claire, moving northeast at 25 mph. Winds in excess of 30 mph and half inch hail are possible with this storm. Locations impacted include... Eau Claire, Chippewa Falls, Altoona, Lake Hallie, Lake Wissota, Cadott, Boyd, Bateman, Eau Claire Airport, Jim Falls and Seymour. LAT...LON 4475 9151 4480 9157 4514 9132 4493 9094 TIME...MOT...LOC 2238Z 228DEG 23KT 4487 9140 $$ TDH
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 5:41 PM CDT | Special Weather Statement | MPX | Steele | 34 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.