Alert archive / Wisconsin / Special Weather Statements in 2021

Special Weather Statement, NWS Milwaukee, WI

September 20, 2021Columbia County, Sauk County, Wisconsin

NWS Milwaukee, WI issued this special weather statement at Sep 20, 2021, 8:37 PM CDT for Columbia County, Sauk County, Wisconsin. It was in force for 38 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
Sep 20, 2021, 8:37 PM CDT (01:37 UTC)
Expired
Sep 20, 2021, 9:15 PM CDT
In force
38 min
Issued by
NWS Milwaukee, WI
Hail
0.00 in
Wind
40

Counties Columbia County, WI, Sauk County, WI

The radar

The Milwaukee radar (KMKX), 95 km from the middle of the area, began a volume at 01:37 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 text

As transmitted.

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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 Milwaukee, WI wrote its last area forecast discussion before this special weather statement went out at Sep 20, 2:40 PM CDT, 5 hours 57 minutes earlier.

Area forecast discussion, Sep 20, 2:40 PM CDT, 5 hours 57 minutes before
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Hazardous weather outlook, Sep 20, 2:51 PM CDT, 5 hours 46 minutes before
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
251 PM CDT Mon Sep 20 2021

WIZ046-047-051-052-056>060-062>072-212000-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
251 PM CDT Mon Sep 20 2021

This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.

.DAY ONE...Tonight

There is a high swim risk through tonight. Life threatening waves
and currents are expected. Stay out of the water, and stay away
from dangerous areas like piers, breakwalls, and river outlets.

A line of thunderstorms is expected to move through the area from
mid evening through the early morning hours on Tuesday. There will
be a risk for a few severe thunderstorms with this line,
especially over the western half of the outlook area. Gusty winds
will be the main threat, though a few brief spin up tornadoes will
also be possible.

.DAYS TWO THROUGH SEVEN...Tuesday through Monday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed tonight.

LMZ643>646-212000-
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
251 PM CDT Mon Sep 20 2021

This Hazardous Weather Outlook is for the nearshore waters from
Sheboygan Wisconsin to Winthrop Harbor Illinois.

.DAY ONE...Tonight

A Small Craft Advisory remains in effect through Tuesday morning
for high winds and waves.

Thunderstorms are likely late this evening into the overnight
hours.

.DAYS TWO THROUGH SEVEN...Tuesday through Monday

The Small Craft Advisory continues through Tuesday morning.

Several periods of gusty winds and elevated waves will be
possible at times from the middle of the week into the weekend.

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-212000-
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
251 PM CDT Mon Sep 20 2021

This Hazardous Weather Outlook is for the open waters of Lake
Michigan.

.DAY ONE...Tonight

A Gale Warning is in effect this evening and continues through
the overnight for southerly gusts up to 40 knots.

Thunderstorms are likely late tonight.

.DAYS TWO THROUGH SEVEN...Tuesday through Monday

While still uncertain, a period of north gales may occur
Wednesday and Wednesday night.

www.weather.gov/mkx

The office that day

Everything else NWS Milwaukee, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 20, 7:22 PM CDTSevere Thunderstorm WarningMKXIowa, Sauk38 min
Sep 20, 7:46 PM CDTSevere Thunderstorm WarningMKXColumbia, Sauk44 min
Sep 20, 7:59 PM CDTSpecial Weather StatementMKXIowa31 min
Sep 20, 8:23 PM CDTSpecial Weather StatementMKXMarquette37 min
Sep 20, 9:14 PM CDTSpecial Weather StatementMKXLafayette46 min
Sep 20, 9:21 PM CDTSevere Thunderstorm WarningMKXColumbia, Dodge24 min
Sep 20, 9:22 PM CDTSevere Thunderstorm WarningMKXDane, Green, Iowa, Lafayette38 min
Sep 20, 9:24 PM CDTTornado WarningMKXDane, Green, Iowa, Lafayette24 min
Sep 20, 9:44 PM CDTSpecial Weather StatementMKXGreen Lake46 min
Sep 20, 10:04 PM CDTSpecial Weather StatementMKXGreen41 min
Sep 20, 10:27 PM CDTSpecial Weather StatementMKXJefferson48 min
Sep 20, 10:41 PM CDTSevere Thunderstorm WarningMKXDane, Jefferson20 min
Sep 21, 3:04 AM CDTGale WatchMKX11 hr
Sep 21, 1:48 PM CDTGale WarningMKX50 hr
Sep 21, 1:48 PM CDTSmall Craft AdvisoryMKX17 hr
Sep 21, 1:51 PM CDTBeach Hazards StatementMKXKenosha, Milwaukee, Ozaukee, Racine, Sheboygan58 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; radar from the NEXRAD Level II archive.