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 28, 2021, 5:17 PM CDT for Manitowoc County, Wisconsin. It was in force for 58 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
- Aug 28, 2021, 5:17 PM CDT (22:17 UTC)
- Expired
- Aug 28, 2021, 6:15 PM CDT
- In force
- 58 min
- Issued by
- NWS Green Bay, WI
- Hail
- 0.25 in
- Wind
- 40
County Manitowoc County, WI
The radar
The Green Bay radar (KGRB), 58 km from the middle of the area, began a volume at 22:18 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
Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.3 hours before the alert went out and 56 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
- 77 J/kg
- Mixed-layer CIN
- -199 J/kg
- Mixed-layer LCL
- 1310 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -52 m²/s²
- 0-3 km storm-relative helicity
- -51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Green Bay, WI wrote its last area forecast discussion before this special weather statement went out at Aug 28, 2:32 PM CDT, 2 hours 45 minutes earlier.
Area forecast discussion, Aug 28, 2:32 PM CDT, 2 hours 45 minutes before
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</html>Hazardous weather outlook, Aug 28, 2:10 PM CDT, 3 hours 7 minutes before
Hazardous Weather Outlook National Weather Service Green Bay WI 210 PM CDT Sat Aug 28 2021 WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-291915- Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln- Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano- Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago- Calumet-Manitowoc-Southern Marinette County- Southern Oconto County- 210 PM CDT Sat Aug 28 2021 This Hazardous Weather Outlook is for north-central and northeast Wisconsin. .DAY ONE...Rest of the Afternoon and Tonight Thunderstorms are possible through late tonight. Scattered strong to severe thunderstorms are possible, especially over north- central, central and far northeast Wisconsin. The main threats would be damaging winds, heavy rainfall and hail. The greatest risk for severe weather will be late this afternoon into early Sunday morning. .DAYS TWO THROUGH SEVEN...Sunday through Saturday Thunderstorms are possible on Sunday. A few stronger storms are possible across east-central Wisconsin from late morning through mid afternoon on Sunday. Strong winds and hail will be the possible with the stronger storms. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed through late tonight. Spotters are requested to report rainfall reports over one inch, large hail and damaging winds. LMZ521-522-541>543-291915- The Bay of Green Bay south of a line from Cedar River MI to Rock Island Passage-Lake Michigan from Washington Island to Sheboygan- 210 PM CDT Sat Aug 28 2021 This Hazardous Weather Outlook is for portions of northwest Lake Michigan and the waters of Green Bay. .DAY ONE...Rest of the Afternoon and Tonight Thunderstorms are possible through tonight. Any thunderstorms will pose a hazard to mariners. .DAYS TWO THROUGH SEVEN...Sunday through Saturday Increasing southwesterly winds and building waves will cause hazardous conditions for small craft on Sunday. Thunderstorms are possible late Sunday morning and afternoon. Some of the storms could contain hail and strong winds. Eckberg/Skowronski
In the hours before
Local storm report, Aug 28, 12:49 PM CDT, 4 hours 28 minutes before
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</html>Special weather statement, Aug 28, 5:17 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Green Bay WI
517 PM CDT Sat Aug 28 2021
WIZ049-050-282315-
Calumet WI-Manitowoc WI-
517 PM CDT Sat Aug 28 2021
...A strong thunderstorm will impact portions of southeastern Calumet
and Manitowoc Counties through 615 PM CDT...
At 517 PM CDT, Doppler radar was tracking a strong thunderstorm over
St Anna, or 13 miles northwest of Plymouth, moving northeast at 35
mph.
HAZARD...Winds in excess of 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
This strong thunderstorm will be near...
Camp Rokilio Scout Camp around 530 PM CDT.
Other locations in the path of this storm include St. Nazianz,
Valders, Manitowoc and Two Creeks.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4394 8816 4394 8827 4432 8752 4415 8750
4407 8759 4390 8768 4389 8773 4389 8816
TIME...MOT...LOC 2217Z 235DEG 31KT 4391 8813
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
KallasThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 7:25 PM CDT | Areal Flood Advisory | GRB | Outagamie, Portage, Shawano, Waupaca | 2 hr |
| Aug 27, 7:52 PM CDT | Special Marine Warning | GRB | 68 min | |
| Aug 27, 7:55 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Oconto, Outagamie, Shawano | 65 min |
| Aug 27, 8:35 PM CDT | Special Weather Statement | GRB | Kewaunee | 40 min |
| Aug 27, 9:08 PM CDT | Special Weather Statement | GRB | Calumet, Winnebago | 52 min |
| Aug 27, 9:53 PM CDT | Areal Flood Advisory | GRB | Marathon, Portage, Waushara, Wood | 3 hr |
| Aug 27, 9:59 PM CDT | Special Weather Statement | GRB | Calumet, Manitowoc | 61 min |
| Aug 27, 10:36 PM CDT | Areal Flood Advisory | GRB | Calumet, Manitowoc | 3 hr |
| Aug 27, 10:39 PM CDT | Areal Flood Advisory | GRB | Outagamie, Shawano, Waupaca, Winnebago | 3 hr |
| Aug 27, 10:58 PM CDT | Flash Flood Warning | GRB | Portage, Wood | 3 hr |
| Aug 27, 11:32 PM CDT | Special Weather Statement | GRB | Oconto, Waushara | 58 min |
| Aug 27, 11:51 PM CDT | Flash Flood Warning | GRB | Waupaca | 3 hr |
| Aug 28, 12:34 AM CDT | Flash Flood Warning | GRB | Brown, Outagamie | 84 min |
| Aug 28, 1:38 AM CDT | Areal Flood Advisory | GRB | Brown, Calumet, Manitowoc | 82 min |
| Aug 28, 7:41 AM CDT | River Flood Warning | GRB | Wood | 21 days |
| Aug 28, 10:14 AM CDT | Beach Hazards Statement | GRB | Door | 33 hr |
| Aug 28, 10:14 AM CDT | Small Craft Advisory | GRB | 33 hr | |
| Aug 28, 10:36 AM CDT | River Flood Warning | GRB | Wood | 48 hr |
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.