Alert archive / Wisconsin / Small Craft Advisories in 2020

Small Craft Advisory 57, NWS Green Bay, WI

August 7, 2020

NWS Green Bay, WI issued this small craft advisory at Aug 7, 2020, 3:21 PM CDT. It took effect at Aug 8, 2020, 10:00 AM CDT. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Aug 7, 2020, 3:21 PM CDT (20:21 UTC)
In effect from
Aug 8, 2020, 10:00 AM CDT
Expired
Aug 9, 2020, 4:00 AM CDT
In force
18 hr
Issued by
NWS Green Bay, WI

What forecasters said that day

The local office's own words before this small craft advisory 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 small craft advisory went out at Aug 7, 12:53 PM CDT, 2 hours 28 minutes earlier.

Area forecast discussion, Aug 7, 12:53 PM CDT, 2 hours 28 minutes before
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Hazardous weather outlook, Aug 7, 3:02 PM CDT, 19 minutes before
Hazardous Weather Outlook
National Weather Service Green Bay WI
302 PM CDT Fri Aug 7 2020

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-082015-
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-
302 PM CDT Fri Aug 7 2020

This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.

.DAY ONE...Tonight

Thunderstorms will be possible late tonight across mainly north-
central and central Wisconsin. The main threat with any
thunderstorms will be gusty winds and heavy downpours.

.DAYS TWO THROUGH SEVEN...Saturday through Friday

Thunderstorms will be possible Saturday through Monday. Any
storms that develop will be capable of producing heavy downpours.
The greatest threat for organized severe weather appears to be
late Sunday afternoon and Sunday evening. Damaging winds, large
hail, torrential rainfall and localized flooding will be possible
during this period.

Dangerous swimming conditions are expected to develop along the
Lake Michigan shoreline Saturday and Saturday night. A Beach
Hazard Statement has been issued.

.SPOTTER INFORMATION STATEMENT...

Formal spotter activation should not be needed tonight.

LMZ521-522-541>543-082015-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
302 PM CDT Fri Aug 7 2020

This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.

.DAY ONE...Tonight

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Friday

South winds gusting over 25 knots and building waves will result
in conditions hazard to small craft Saturday and Saturday night.
Small Craft Advisories have been issued.

Thunderstorms will be possible from Saturday through Monday. Any
thunderstorms that develop will pose a hazard to boaters on the
lake and bay. The greatest threat of organized severe weather
appears to be late Sunday afternoon and Sunday night.

Bersch/Kieckbusch

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 3:23 PM CDTBeach Hazards StatementGRBDoor, Kewaunee, Manitowoc37 hr

Nearby

Small Craft Advisories in Wisconsin, 2020Every small craft advisory in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.