Alert archive / Wisconsin / Special Marine Warnings in 2011

Special Marine Warning 21, NWS Green Bay, WI

July 18, 2011

NWS Green Bay, WI issued this special marine warning at Jul 18, 2011, 11:36 AM CDT. It was in force for 41 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 18, 2011, 11:36 AM CDT (16:36 UTC)
Expired: Jul 18, 2011, 12:17 PM CDT
In force: 41 min
Issued by: NWS Green Bay, WI
Area: Storm-based polygon

The radar

The Green Bay radar (KGRB), 55 km from the middle of the area, began a volume at 16:40 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, 4.6 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.

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: 3928 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 613 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 106 m²/s²
0-3 km storm-relative helicity: 111 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 9.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

976 
WHUS53 KGRB 181636
SMWGRB
LMZ521-522-181745-
/O.NEW.KGRB.MA.W.0021.110718T1636Z-110718T1745Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
1136 AM CDT MON JUL 18 2011

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* SPECIAL MARINE WARNING FOR...

  CENTRAL AND SOUTHERN BAY OF GREEN BAY...

* UNTIL 1245 PM CDT

* AT 1130 AM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE
  OF PRODUCING DANGEROUS WINDS IN EXCESS OF 50 KNOTS AND HAIL 
  5 NM NORTHWEST OF COLEMAN...MOVING SOUTHEAST AT 30 KNOTS.

* THIS SEVERE THUNDERSTORM WILL PASS NEAR...
  BAY SHORE PARK...PESHTIGO REEF LIGHT AND SHERWOOD POINT LIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MARINERS CAN EXPECT DANGEROUS WINDS...HAIL...HIGH WAVES...DANGEROUS 
LIGHTNING AND HEAVY RAIN. BOATERS SHOULD SEEK SAFE HARBOR 
IMMEDIATELY...UNTIL THIS STORM PASSES.

&&

LAT...LON 4485 8742 4481 8754 4483 8760 4474 8770
      4464 8774 4461 8785 4475 8798 4488 8786
      4494 8786 4497 8780 4498 8767 4501 8764
      4515 8761 4508 8725
TIME...MOT...LOC 1635Z 304DEG 31KT 4510 8805
WIND...HAIL 50KTS <.75IN

$$

JKL

2 follow-up statements

293 
FZUS73 KGRB 181656
MWSGRB

MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
1156 AM CDT MON JUL 18 2011

LMZ521-522-181745-
/O.CON.KGRB.MA.W.0021.000000T0000Z-110718T1745Z/
1156 AM CDT MON JUL 18 2011

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT...

FOR THE FOLLOWING AREAS...

  CENTRAL AND SOUTHERN BAY OF GREEN BAY...

AT 1155 AM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE OF 
PRODUCING STRONG WINDS TO 40 KNOTS AND SMALL HAIL 7 NM SOUTHEAST OF 
COLEMAN...MOVING SOUTHEAST AT 25 KNOTS.

THIS STRONG THUNDERSTORM WILL PASS NEAR...
SHERWOOD POINT LIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MARINERS CAN EXPECT STRONG WINDS TO 40 KNOTS...SMALL HAIL...HIGH
WAVES...DANGEROUS LIGHTNING...AND HEAVY RAINS. BOATERS SHOULD SEEK
SAFE HARBOR IMMEDIATELY...UNTIL THIS STORM PASSES.

&&

LAT...LON 4496 8734 4485 8742 4481 8754 4483 8760
      4474 8770 4464 8774 4463 8776 4481 8792
      4488 8786 4494 8786 4497 8780 4498 8767
      4501 8764 4504 8763
TIME...MOT...LOC 1656Z 309DEG 23KT 4499 8789
WIND...HAIL 40KTS <.75IN

$$

JKL

084 
FZUS73 KGRB 181717
MWSGRB

MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
1217 PM CDT MON JUL 18 2011

LMZ521-522-181725-
/O.CAN.KGRB.MA.W.0021.000000T0000Z-110718T1745Z/
1217 PM CDT MON JUL 18 2011

...SPECIAL MARINE WARNING CANCELLED...

THE AFFECTED AREAS WERE...

  CENTRAL AND SOUTHERN BAY OF GREEN BAY...

THIS STORM HAS WEAKENED AND NO LONGER POSES A SIGNIFICANT RISK TO
BOATERS.

LAT...LON 4496 8734 4485 8742 4481 8754 4483 8760
      4474 8770 4464 8774 4463 8776 4481 8792
      4488 8786 4494 8786 4497 8780 4498 8767
      4501 8764 4504 8763
TIME...MOT...LOC 1715Z 309DEG 23KT 4491 8776

$$

BERSCH

What forecasters said that day

The local office's own words before this special marine warning 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 marine warning went out at Jul 18, 4:35 AM CDT, 7 hours 1 minute earlier.

Area forecast discussion, Jul 18, 4:35 AM CDT, 7 hours 1 minute before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
435 AM CDT MON JUL 18 2011

.SHORT TERM...TODAY THROUGH TUESDAY. THE CONVECTION THAT MOVED
THROUGH LAST NIGHT PRODUCED WINDS DAMAGE ACROSS NORTHERN WISCONSIN
BUT DID PROVIDE SOME BRIEF RELIEF FROM THE HEAT YESTERDAY AFTERNOON.
WHILE TEMPERATURES HAVE FALLEN INTO THE 60S AND LOW 70S EARLY
TODAY THERE IS VERY WARM AIR JUST ABOVE THE GROUND. ONCE THE
CLOUDS BREAK UP AND WE GET SOME MIXING THE TEMPERATURES WILL
BEGIN TO RISE QUICKLY. THE CONVECTIVE COMPLEX MIXED DOWN SOME
SLIGHTLY DRIER AIR TO THE SURFACE BUT 70S DEW POINTS ARE NOT FAR
UPSTREAM TO THE SOUTH AND WEST AND WILL RETURN QUICKLY.
TEMPERATURES IN THE 90S AND DEW POINTS IN THE 70S WILL PRODUCE HEAT
INDICES OF 100 TO 110 OVER ALL BUT THE LAKESHORE AREAS TODAY. THE
PAST SEVERAL DAYS AND THE REMAINDER OF THIS WEEK SHOULD BE A GREAT
TIME TO GO TO THE DOOR PENINSULA TO ESCAPE THE HEAT.

SCATTERED SHOWERS AND THUNDERSTORMS STILL POSSIBLE THIS AFTERNOON
AS WEAK SURFACE LOW OVER MINNESOTA MOVES EAST INTO WISCONSIN. AS
IT MOVES EAST OF THE REGION TONIGHT WINDS WILL SWING TO THE NORTH
FOR AWHILE AND TRY TO BRING DOWN SLIGHTLY COOLER AND DRIER AIR FOR
TUESDAY AS A WEAK HIGH MOVES ACROSS NORTHERN WISCONSIN.
COOLER AND DRIER IS ONLY IN A RELATIVE SENSE AS IT WILL STILL BE
WELL ABOVE SEASONAL LEVELS.

.LONG TERM...TUESDAY NIGHT THROUGH SUNDAY.

HOT AND HUMID CONDITIONS AND THE CHANCE FOR THUNDERSTORMS ARE THE
MAIN CONCERNS DURING THIS PART OF THE FORECAST.

LATEST MODEL RUNS INDICATED A BREAKDOWN OF THE UPPER RIDGE BY THE
END OF THE WEEK. THIS SHOULD BRING SOME COOLER TEMPERATURES TO THE
FORECAST AREA BY THEN.

DIFFICULT TO TELL WHEN AND WHERE TO INCLUDE POPS. HAVE LEFT THEM
AS CLOSE TO THE PREVIOUS FORECAST AS POSSIBLE SINCE THERE DID NOT
SEEM TO BE A GOOD ENOUGH REASON TO MAKE CHANGES.

USED A MIX OF GUIDANCE AND THE PREVIOUS FORECAST FOR TEMPERATURES
DURING THE PERIOD.
&&

.AVIATION...VARIABLE CIGS AND VSBYS EARLY TODAY DUE TO CLOUDS AND
SCATTERED SHOWERS. SHOULD GENERALLY BECOME VFR THIS AFTERNOON AND
EVENING THOUGH THERE MAY BE HAZE IN THE AIR DUE TO HIGH MOISTURE
CONTENT.
&&

.GRB WATCHES/WARNINGS/ADVISORIES...
EXCESSIVE HEAT WARNING UNTIL 7 PM CDT THURSDAY FOR WIZ020-030-
031-035>039-045-048-049.

HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR WIZ005-010>013-018-
019-021-073-074.

&&

RDM/MG

Hazardous weather outlook, Jul 18, 6:15 AM CDT, 5 hours 21 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREEN BAY WI
615 AM CDT MON JUL 18 2011

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-191115-
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-
615 AM CDT MON JUL 18 2011

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

.DAY ONE...TODAY AND TONIGHT

TEMPERATURES IN THE 90S AND DEW POINTS IN THE 70S WILL CREATE HEAT
INDICES OF 100 TO 110 THIS AFTERNOON OVER ALL BUT THE LAKESHORE
AREAS. THIS HEAT CAN BE DANGEROUS FOR PEOPLE WHO EXERT THEMSELVES
OUTDOORS...AND POSSIBLY FOR THOSE IN RESIDENCES WITHOUT AIR
CONDITIONING.

IN ADDITION TO THE HEAT...SCATTERED THUNDERSTORMS ARE EXPECTED
TODAY THROUGH THIS EVENING. THERE IS A SLIGHT CHANCE THAT SOME OF
THESE COULD PRODUCE DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

A HAZARDOUS COMBINATION OF HEAT AND HUMIDITY IS LIKELY FOR ALL OR
PART OF THE PERIOD FROM TUESDAY THROUGH FRIDAY. HIGH TEMPERATURES IN
THE 90S AND DEW POINTS IN THE 70S WILL PRODUCE HEAT INDICES OVER
100 DEGREES ON SOME OR ALL OF THESE DAYS.

THOSE RESPONSIBLE FOR CONSTRUCTION CREWS AND LARGE OUTDOOR EVENTS
SHOULD MAKE PLANS FOR PROVIDING SHADE...WATER AND PLACES FOR
PEOPLE TO COOL OFF. THOSE CARING FOR THE ELDERLY AND DISABLED
SHOULD ENSURE THEY ARE NOT ENDANGERED BY THE UPCOMING HOT WEATHER.

THERE IS A CHANCE OF THUNDERSTORMS FROM TIME TO TIME TUESDAY THROUGH
SATURDAY. IT IS TOO EARLY TO DETERMINE WHEN AND WHERE SEVERE WEATHER
WOULD OCCUR.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE...THOUGH NOT LIKELY TODAY OR
TONIGHT.

LMZ521-522-541>543-191115-
THE BAY OF GREEN BAY SOUTH OF A LINE FROM CEDAR RIVER MI TO ROCK
ISLAND PASSAGE-LAKE MICHIGAN FROM WASHINGTON ISLAND TO SHEBOYGAN-
615 AM CDT MON JUL 18 2011

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

.DAY ONE...TODAY AND TONIGHT

PATCHY DENSE FOG CAN BE EXPECTED OVER THE COASTAL WATERS OF LAKE
MICHIGAN AS A WARM AND HUMID AIR MOVES OVER THE COLDER WATERS. IN
ADDITION TO THE POSSIBLE FOG...SCATTERED THUNDERSTORMS COULD
PRODUCE STRONG WINDS TODAY AND TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

DENSE MARINE FOG WILL OCCUR FROM TIME TO TIME ACROSS THE COASTAL
WATERS OF LAKE MICHIGAN THROUGH MUCH OF THE WEEK. VERY WARM AND
HUMID AIR WILL REMAIN OVER THE COOLER WATERS OF LAKE MICHIGAN. THE
FOG IS USUALLY MOST DENSE WHERE THE WATER IS COLDEST AND WHEN
WINDS ARE LIGHT.

THERE IS A CHANCE OF THUNDERSTORMS FROM TIME TO TIME TUESDAY THROUGH
SATURDAY. IT IS TOO EARLY TO DETERMINE WHEN AND WHERE SEVERE
WEATHER WOULD OCCUR.

In the hours before

Local storm report, Jul 18, 9:31 AM CDT, 2 hours 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
931 AM CDT MON JUL 18 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0927 AM     TSTM WND GST     2 W DE PERE             44.45N 88.09W
07/18/2011  M53 MPH          BROWN              WI   MESONET

            WEST DE PERE HIGH SCHOOL.

0915 AM     TSTM WND GST     3 N DALE                44.30N 88.68W
07/18/2011  M56 MPH          OUTAGAMIE          WI   AMATEUR RADIO

&&

Local storm report, Jul 18, 9:32 AM CDT, 2 hours 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
932 AM CDT MON JUL 18 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0925 AM     TSTM WND DMG     1 N APPLETON            44.27N 88.40W
07/18/2011                   OUTAGAMIE          WI   LAW ENFORCEMENT

            NEAR BALLARD AND JJ...POWER LINES IN TREES AND BLOWN
            TRANSFORMER.

&&

BERSCH

Local storm report, Jul 18, 9:48 AM CDT, 1 hour 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
948 AM CDT MON JUL 18 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0845 AM     TSTM WND DMG     5 SW WAUPACA            44.29N 89.13W
07/18/2011                   WAUPACA            WI   TRAINED SPOTTER

            TREE DOWN ON A TENT AT TWIN LAKES CAMPGROUND. NO
            INJURIES.

&&

BERSCH

Local storm report, Jul 18, 9:52 AM CDT, 1 hour 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
952 AM CDT MON JUL 18 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0930 AM     TSTM WND DMG     GREEN BAY               44.51N 88.00W
07/18/2011                   BROWN              WI   PUBLIC

            SEVERAL POWER LINES DOWN IN GREEN BAY AND DE PERE. TREE
            FELL ONTO HOUSE IN ASHWAUBENON. TIME ESTIMATED.

&&

Special weather statement, Jul 18, 10:16 AM CDT, 1 hour 20 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
1016 AM CDT MON JUL 18 2011

WIZ073-074-181630-
SOUTHERN MARINETTE-SOUTHERN OCONTO-
INCLUDING THE CITY OF...CRIVITZ
1016 AM CDT MON JUL 18 2011

...STRONG THUNDERSTORMS MOVING ACROSS SOUTHERN OCONTO AND
SOUTHERN MARINETTE COUNTIES THIS MORNING...

AT 1020 AM...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 2 MILES
NORTH OF OCONTO. THE THUNDERSTORM WAS MOVING TO THE EAST AROUND 35
MPH. THE STORM WILL REACH PESHTIGO AROUND 1030 AM. THIS STORM IS
CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH...TORRENTIAL RAINS AND
FREQUENT CLOUD TO GROUND LIGHTNING STRIKES.

ECKBERG

Local storm report, Jul 18, 10:41 AM CDT, 55 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE GREEN BAY WI
1041 AM CDT MON JUL 18 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0750 AM     TSTM WND DMG     WISCONSIN RAPIDS        44.40N 89.84W
07/18/2011                   WOOD               WI   PUBLIC

            A COUPLE OF TREES DOWN.

0805 AM     TSTM WND DMG     PLOVER                  44.45N 89.53W
07/18/2011                   PORTAGE            WI   TRAINED SPOTTER

            A FEW TREES DOWN.

0815 AM     TSTM WND GST     STEVENS POINT           44.51N 89.56W
07/18/2011  E60.00 MPH       PORTAGE            WI   PUBLIC

            2 FT DIAMETER TREE BLOWN ONTO HOUSE.

0822 AM     TSTM WND GST     PLOVER                  44.45N 89.53W
07/18/2011  M70.00 MPH       PORTAGE            WI   CO-OP OBSERVER

            ALSO BRIEF PERIOD OF PEA SIZE HAIL. 0.78 INCH RAINFALL IN
            30 MINUTES.

0843 AM     TSTM WND DMG     3 S WAUPACA             44.30N 89.06W
07/18/2011                   WAUPACA            WI   LAW ENFORCEMENT

            NUMEROUS TREES DOWN ON HIGHWAYS K AND E SOUTH OF THE CITY
            OF WAUPACA.

0845 AM     TSTM WND DMG     5 SW WAUPACA            44.29N 89.13W
07/18/2011                   WAUPACA            WI   TRAINED SPOTTER

            TREE DOWN ON A TENT AT TWIN LAKES CAMPGROUND. NO
            INJURIES.

0915 AM     TSTM WND GST     3 N DALE                44.30N 88.68W
07/18/2011  M56.00 MPH       OUTAGAMIE          WI   AMATEUR RADIO

0918 AM     TSTM WND DMG     3 W MENASHA             44.20N 88.50W
07/18/2011                   WINNEBAGO          WI   PUBLIC

            UPDATE...SEVERAL CAMPLER TRAILERS FLIPPED AT CAMPGROUND
            NEAR HIGHWAYS 76 AND 10 BY THUNDERSTORM WINDS. TIME
            ESTIMATED.

0925 AM     TSTM WND DMG     1 N APPLETON            44.27N 88.40W
07/18/2011                   OUTAGAMIE          WI   LAW ENFORCEMENT

            NEAR BALLARD AND JJ...POWER LINES IN TREES AND BLOWN
            TRANSFORMER.

0927 AM     TSTM WND GST     2 W DE PERE             44.45N 88.09W
07/18/2011  M53.00 MPH       BROWN              WI   MESONET

            WEST DE PERE HIGH SCHOOL.

0930 AM     TSTM WND DMG     GREEN BAY               44.51N 88.00W
07/18/2011                   BROWN              WI   PUBLIC

            SEVERAL POWER LINES DOWN IN GREEN BAY AND DE PERE. TREE
            FELL ONTO HOUSE IN ASHWAUBENON. TIME ESTIMATED.

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 7:05 PM CDT	Flash Flood Warning	GRB	Vilas	3 hr
Jul 17, 7:15 PM CDT	Severe Thunderstorm Warning	GRB	Oneida, Vilas	54 min
Jul 17, 7:51 PM CDT	Severe Thunderstorm Warning	GRB	Langlade, Lincoln, Oneida	54 min
Jul 17, 7:51 PM CDT	Severe Thunderstorm Warning	GRB	Florence, Forest, Marinette	39 min
Jul 17, 8:30 PM CDT	Severe Thunderstorm Warning	GRB	Florence, Forest, Marinette, Oconto	75 min
Jul 17, 8:40 PM CDT	Severe Thunderstorm Warning	GRB	Langlade, Marathon, Menominee, Shawano	50 min
Jul 17, 8:49 PM CDT	Special Marine Warning	GRB		116 min
Jul 17, 9:08 PM CDT	Severe Thunderstorm Warning	GRB	Marinette, Oconto, Shawano	52 min
Jul 17, 9:26 PM CDT	Severe Thunderstorm Warning	GRB	Marathon, Portage, Shawano, Waupaca	64 min
Jul 17, 9:30 PM CDT	Severe Thunderstorm Warning	GRB	Menominee	22 min
Jul 17, 9:40 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Outagamie	65 min
Jul 17, 9:48 PM CDT	Special Marine Warning	GRB		117 min
Jul 17, 10:12 PM CDT	Severe Thunderstorm Warning	GRB	Door, Kewaunee	63 min
Jul 17, 10:12 PM CDT	Severe Thunderstorm Warning	GRB	Waushara, Winnebago	54 min
Jul 17, 10:24 PM CDT	Severe Thunderstorm Warning	GRB	Calumet, Manitowoc	66 min
Jul 18, 6:57 AM CDT	Severe Thunderstorm Warning	GRB	Wood	48 min
Jul 18, 7:41 AM CDT	Severe Thunderstorm Warning	GRB	Portage, Wood	49 min
Jul 18, 8:14 AM CDT	Severe Thunderstorm Warning	GRB	Portage, Waupaca	46 min
Jul 18, 8:19 AM CDT	Severe Thunderstorm Warning	GRB	Waushara	41 min
Jul 18, 8:46 AM CDT	Severe Thunderstorm Warning	GRB	Outagamie, Winnebago	59 min
Jul 18, 9:03 AM CDT	Severe Thunderstorm Warning	GRB	Shawano, Waupaca	39 min
Jul 18, 9:10 AM CDT	Special Marine Warning	GRB		2 hr
Jul 18, 9:15 AM CDT	Severe Thunderstorm Warning	GRB	Brown, Calumet	45 min
Jul 18, 9:40 AM CDT	Severe Thunderstorm Warning	GRB	Kewaunee, Manitowoc	38 min
Jul 18, 10:43 AM CDT	Severe Thunderstorm Warning	GRB	Door	23 min
Jul 18, 11:05 AM CDT	Severe Thunderstorm Warning	GRB	Marinette, Oconto	50 min
Jul 18, 2:11 PM CDT	Severe Thunderstorm Warning	GRB	Forest	49 min
Jul 18, 2:27 PM CDT	Severe Thunderstorm Warning	GRB	Oneida, Vilas	32 min
Jul 18, 2:57 PM CDT	Severe Thunderstorm Warning	GRB	Forest	33 min
Jul 18, 5:20 PM CDT	Severe Thunderstorm Warning	GRB	Outagamie, Shawano, Waupaca	40 min
Jul 18, 5:56 PM CDT	Severe Thunderstorm Warning	GRB	Outagamie, Waupaca, Waushara, Winnebago	64 min

Nearby

Special Marine Warnings in Wisconsin, 2011 Every special marine warning 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.