Alert archive / Wisconsin / Heat Advisories in 2011

Heat Advisory 1, NWS Green Bay, WI

June 30, 201117 counties in Wisconsin

NWS Green Bay, WI issued this heat advisory at Jun 30, 2011, 4:26 AM CDT for 17 counties in Wisconsin. It took effect at Jul 1, 2011, 12:00 PM CDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Jun 30, 2011, 4:26 AM CDT (09:26 UTC)
In effect from: Jul 1, 2011, 12:00 PM CDT
Expired: Jul 1, 2011, 7:56 PM CDT
In force: 8 hr
Issued by: NWS Green Bay, WI

Counties Brown County, WI, Calumet County, WI, Kewaunee County, WI, Langlade County, WI, Lincoln County, WI, Manitowoc County, WI, Marathon County, WI, Marinette County, WI, Menominee County, WI, Oconto County, WI, Outagamie County, WI, Portage County, WI, Shawano County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 52 km from the middle of the area, began a volume at 09:32 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 nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 9.4 hours before the alert went out and 53 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1348 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 106 m²/s²
0-3 km storm-relative helicity: 161 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this heat 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 heat advisory went out at Jun 30, 4:00 AM CDT, 26 minutes earlier.

Area forecast discussion, Jun 30, 4:00 AM CDT, 26 minutes before

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Hazardous weather outlook, Jun 29, 5:56 AM CDT, 22 hours 30 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREEN BAY WI
556 AM CDT WED JUN 29 2011

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-301100-
VILAS-ONEIDA-FOREST-FLORENCE-NORTHERN MARINETTE-LINCOLN-LANGLADE-
MENOMINEE-NORTHERN OCONTO-DOOR-MARATHON-SHAWANO-WOOD-PORTAGE-
WAUPACA-OUTAGAMIE-BROWN-KEWAUNEE-WAUSHARA-WINNEBAGO-CALUMET-
MANITOWOC-SOUTHERN MARINETTE-SOUTHERN OCONTO-
556 AM CDT WED JUN 29 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST
WISCONSIN.

.DAY ONE...TODAY AND TONIGHT

THERE IS A CHANCE FOR THUNDERSTORMS LATE TONIGHT OVER CENTRAL AND
NORTH CENTRAL WISCONSIN. A FEW OF THE STRONGER STORMS MAY CONTAIN
HAIL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THERE IS A CHANCE FOR THUNDERSTORMS ON THURSDAY AS A WARM FRONT
LIFTS OVER THE STATE. A FEW STORMS MAY CONTAIN HAIL AND GUSTY
WINDS.

A BRIEF PERIOD OF HOT AND HUMID WEATHER IS LIKELY AT THE END OF
THE WEEK. ON FRIDAY...HIGH TEMPERATURES ARE EXPECTED TO WARM INTO
THE LOWER TO MID 90S...RESULTING IN DANGEROUS HEAT INDICES INTO
THE 100 TO 105 DEGREE RANGE AWAY FROM LAKE MICHIGAN.

COLD FRONTS MAY BRING A CHANCE OF THUNDERSTORMS FRIDAY AFTERNOON AND
FRIDAY NIGHT...AND AGAIN ON SUNDAY INTO EARLY ON THE FOURTH OF
JULY. HOWEVER...THE CHANCE OF STORMS IS SMALL AT THIS TIME...AND
IT IS TOO EARLY TO DETERMINE IF ANY SEVERE STORMS WILL DEVELOP.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.

LMZ521-522-541>543-301100-
THE BAY OF GREEN BAY SOUTH OF A LINE FROM CEDAR RIVER MI TO ROCK
ISLAND PASSAGE-LAKE MICHIGAN FROM WASHINGTON ISLAND TO SHEBOYGAN-
556 AM CDT WED JUN 29 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST LAKE
MICHIGAN AND THE WATERS OF GREEN BAY.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THERE IS A CHANCE FOR THUNDERSTORMS THURSDAY...AND A SMALL CHANCE
OF THUNDERSTORMS FRIDAY AFTERNOON AND FRIDAY NIGHT...AND THEN AGAIN
SUNDAY INTO EARLY MONDAY. IT IS TOO EARLY TO DETERMINE IF ANY
SEVERE STORMS WILL DEVELOP.

TH/MPC

Nearby

Heat Advisories in Wisconsin, 2011 Every heat advisory in 2011

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.