Alert archive / Wisconsin / Special Weather Statements in 2017

Special Weather Statement, NWS Milwaukee, WI

July 21, 2017Lafayette County, Wisconsin

NWS Milwaukee, WI issued this special weather statement at Jul 21, 2017, 5:31 PM CDT for Lafayette County, Wisconsin. It was in force for 29 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: Jul 21, 2017, 5:31 PM CDT (22:31 UTC)
Expired: Jul 21, 2017, 6:00 PM CDT
In force: 29 min
Issued by: NWS Milwaukee, WI

County Lafayette County, WI

The radar

The Quad Cities radar (KDVN), 116 km from the middle of the area, began a volume at 22:32 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 Jul 21, 3:41 PM CDT, 1 hour 50 minutes earlier.

Area forecast discussion, Jul 21, 3:41 PM CDT, 1 hour 50 minutes before

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Hazardous weather outlook, Jul 21, 4:10 AM CDT, 13 hours 21 minutes before

Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
410 AM CDT Fri Jul 21 2017

WIZ046-047-051-052-056>060-062>072-220915-
Marquette-Green Lake-Fond Du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
410 AM CDT Fri Jul 21 2017

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

.DAY ONE...Today and Tonight

Several rounds of thunderstorms are expected from this afternoon
through the overnight hours. Repeated rounds of storms over the
same area will produce heavy rain that would affect the already
high rivers. A flash flood watch is in effect for all but east
central WI. Damaging winds, large hail and even a tornado are
possible.

Heat index values in the middle to upper 90s are forecast across
mainly southern and western portions of the area this afternoon.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

There is a chance of thunderstorms Saturday and Sunday, and again
Wednesday night through Thursday.

Heat index values in the middle 90s are forecast across mainly
southern portions of the area Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and tonight.

LMZ643>646-220915-
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-
410 AM CDT Fri Jul 21 2017

This Hazardous Weather Outlook is for portions of Lake Michigan.

.DAY ONE...Today and Tonight

Thunderstorms will develop this afternoon and overspread all of
southern Wisconsin tonight before tapering off Saturday morning.
Gusty winds and hail are possible at times. There is a slight risk
for severe storms during this period.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

There is a chance of thunderstorms Saturday and Sunday, and again
Wednesday night through Thursday.

Cronce

www.weather.gov/mkx

In the hours before

Special weather statement, Jul 21, 12:42 PM CDT, 4 hours 49 minutes before

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Special weather statement, Jul 21, 2:03 PM CDT, 3 hours 28 minutes before

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Special weather statement, Jul 21, 5:04 PM CDT, 27 minutes before

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Special weather statement, Jul 21, 5:21 PM CDT, 10 minutes before

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Special weather statement, Jul 21, 5:31 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 9:29 AM CDT	River Flood Warning	MKX	Sauk	5 days
Jul 21, 12:42 PM CDT	Special Weather Statement	MKX	Iowa, Lafayette	63 min
Jul 21, 2:03 PM CDT	Special Weather Statement	MKX	Green, Rock	72 min
Jul 21, 5:04 PM CDT	Special Weather Statement	MKX	Lafayette	71 min
Jul 21, 5:21 PM CDT	Special Weather Statement	MKX	Green	24 min
Jul 21, 5:46 PM CDT	Areal Flood Advisory	MKX	Dane	3 hr
Jul 21, 5:50 PM CDT	Special Weather Statement	MKX	Rock	25 min
Jul 21, 5:55 PM CDT	Special Weather Statement	MKX	Green	20 min
Jul 21, 6:02 PM CDT	Special Weather Statement	MKX	Lafayette	28 min
Jul 21, 6:14 PM CDT	Special Weather Statement	MKX	Rock	31 min
Jul 21, 6:23 PM CDT	Special Weather Statement	MKX	Lafayette	22 min
Jul 21, 6:40 PM CDT	Special Weather Statement	MKX	Rock	35 min
Jul 21, 6:44 PM CDT	Special Weather Statement	MKX	Lafayette	31 min

Nearby

Special Weather Statements in Wisconsin, 2017 Every special weather statement in 2017

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.