Alert archive / Wisconsin / Special Weather Statements in 2021
Special Weather Statement, NWS Green Bay, WI
NWS Green Bay, WI issued this special weather statement at Aug 3, 2021, 5:21 PM CDT for Calumet County, Wisconsin. It was in force for 24 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
- Aug 3, 2021, 5:21 PM CDT (22:21 UTC)
- Expired
- Aug 3, 2021, 5:45 PM CDT
- In force
- 24 min
- Issued by
- NWS Green Bay, WI
- Hail
- 0.50 in
- Wind
- 30
County Calumet County, WI
The radar
The Green Bay radar (KGRB), 40 km from the middle of the area, began a volume at 22:21 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 3, 5:34 PM CDT | HAIL 0.25 | Sherwood, WI |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.4 hours before the alert went out and 38 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
- 46 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 1357 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
479 WWUS83 KGRB 032221 SPSGRB Special Weather Statement National Weather Service Green Bay WI 521 PM CDT Tue Aug 3 2021 WIZ049-032245- Calumet WI- 521 PM CDT Tue Aug 3 2021 ...A strong thunderstorm will impact portions of northwestern Calumet County through 545 PM CDT... At 519 PM CDT, Doppler radar was tracking a strong thunderstorm over Northern Lake Winnebago, just south of Appleton, moving south at 10 mph. HAZARD...Winds in excess of 30 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Minor damage to outdoor objects is possible. Locations impacted include... High Cliff State Park, Northern Lake Winnebago, Central Lake Winnebago, Harrison, Sherwood and Stockbridge. This includes Wisconsin Highway 441 between mile markers 5 and 6. PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. If on northern Lake Winnebago, get off of the water and move indoors or inside a vehicle. Remember, lightning can strike out to 10 miles from the parent thunderstorm. If you can hear thunder, you are close enough to be struck by lightning. Move to safe shelter now! Do not be caught on the water in a thunderstorm. && LAT...LON 4424 8840 4424 8825 4407 8817 4408 8840 TIME...MOT...LOC 2219Z 348DEG 8KT 4419 8834 MAX HAIL SIZE...0.50 IN MAX WIND GUST...30 MPH $$ Skowronski
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.