Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 130, NWS Green Bay, WI

July 30, 2006Door County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jul 30, 2006, 7:41 AM CDT for Door County, Wisconsin. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 30, 2006, 7:41 AM CDT (12:41 UTC)
Expired: Jul 30, 2006, 8:14 AM CDT
In force: 33 min
Issued by: NWS Green Bay, WI
Area: Counties, with a storm outline in the text

County Door County, WI

The radar

The Green Bay radar (KGRB), 71 km from the middle of the area, began a volume at 12:43 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, 0.7 hours before the alert went out and 71 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: 3708 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 772 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 53 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jul 30, 5:15 AM CDT, 2 hours 26 minutes earlier.

Area forecast discussion, Jul 30, 5:15 AM CDT, 2 hours 26 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
515 AM CDT SUN JUL 30 2006

...PROLONGED PERIOD OF HOT WEATHER EXPECTED ACROSS THE AREA...

.SHORT TERM...TODAY THROUGH MONDAY. CONTINUE TO DEAL WITH CONVECTION
ALONG NORTHERN TIER OF COUNTIES. AT THIS TIME...MAINLY HEAVY RAIN MAKERS
WITH SOME INCH PLUS REPORTS.  LINE STARTING TO DROP SOUTH ALONG
INSTABILITY AXIS OVER CENTRAL WI. WILL BE WATCHING FOR WIND CONCERNS
WITH BOWING SEGMENTS.  EXPECT LINE TO PUSH SOUTH OF AREA AROUND 12Z.

LITTLE CHANGE MADE IN REMAINDER OF GRIDS WITH WARM TEMPS EXPECTED AS
RIDGE PASSES OVERHEAD.  HAVE ISSUED HEAT ADVISORY WITH THIS ISSUANCE FOR
MON AND TUE FOR SOUTHERN HALF OF CWA...AWAY FROM THE LAKE...AS HEAT
INDICES REACH 105.

.LONG TERM...MON NGT THRU NXT SAT. MAIN FCST CONCERN INITIALLY WL BE THE
HOT TEMPS THRU TUE BEFORE A CDFNT PUSHES THRU THE RGN TO FIRST BRING
SHWRS/TSTMS AND THEN A RETURN TO NEAR NORMAL TEMPS FOR LATE NXT WEEK.

CDFNT EXPECTED TO EDGE INTO NW WI MON NGT ACCOMPANIED BY SHRTWV ENERGY
MOVG ALONG THE FNT. MODERATE INSTABILITY TO BE LOCATED AHD OF THE FNT
WITH LIS AROUND -3 AND MID LVL LAPSE RATES AROUND 6 C/KM. ATM NOT
COMPLETELY SATURATED (BASED ON FCST SNDNGS)...THUS ANY PCPN APRS TO ONLY
 BE NEAR THE FNT. PREFER TO DELAY PCPN CHCS OVR NRN WI TIL AFTER MIDNGT
AND ONLY MENTION A SLGT CHC. OTHERWISE...A MOSTLY CLR TO PARTLY CLDY NGT
TO BE SEEN OVR NE WI WITH MIN TEMPS ONLY IN THE 70S. FNT PROGGED TO
BECOME MORE W-SW/E-NE ORIENTATED ON TUE AS IT RUNS INTO THE BROAD
SUBTROPICAL UPR RDG OVR THE SE U.S.  BY 00Z WED...THE FNT SHOULD LIE
ACROSS NRN WI AND BE THE MAIN FOCUS FOR SHWRS AND TSTMS. THEREFORE...
HIGHEST CHC POPS TO RESIDE GENERALLY NORTH OF A LINE FROM MERRILL TO
WAUSAUKEE. ATM TO THE SOUTH AND EAST TO BE MAINLY CAPPED THRU THE DAY...
THUS HAVE CONTINUED TO HOLD OFF ON PCPN CHC FOR E-CNTRL WI. MAX TEMPS ON
TUE TO BE COOLER WHERE CLDS/SCT TSTMS DVLP...WHILE ANOTHER HOT AND HUMID
DAY EXPECTED OVR CNTRL/E-CNTRL WI. HEAT INDICES OVR THIS PART OF THE
FCST AREA WL ONCE AGAIN CLIMB OVER 105 DEGS.

FNTL BNDRY NOT EXPECTED TO MOV MUCH TUE NGT AS A SFC WAVE LIFTS NE ALONG
THE BNDRY. THE ADDL LIFT PROVIDED BY THE SFC WAVE AND THE RIGHT ENTRANCE
RGN OF THE UPR JET WL BE ENUF TO BRING A CHC OF SHWRS/TSTMS TO ALL OF NE
WI. DUE TO THE ABUNDANT AMT OF MSTR IN PLACE...SOME OF THE STORMS WL
DROP HVY RAINS WITH AN INCH OR TWO PSBL ESP OVR WRN SECTIONS OF THE FCST
AREA WHICH WL BE CLOSER TO THE BNDRY. THE APPROACH OF A SHRTWV TROF WL
PROVIDE THE IMPETUS TO SEND THE BNDRY SEWD ON WED. SINCE THE BNDRY TO BE
IN OUR VCNTY TO PROVIDE THE LIFT...SHRTWV TROF TO PROVIDE THE DYNAMICS
AND PLENTY OF LOW LVL MSTR STILL IN PLACE...HAVE KEPT CHC POPS GOING
ACROSS NE WI FOR WED. BETTER PCPN CHCS SHOULD TRANSITION MORE TO SRN
SECTIONS OF THE FCST AREA AS THE BNDRY DROPS SE. CLDS...PCPN AND WND
SHIFT TO THE NORTH BEHIND THE FNT WL BRING AN END TO THE HEAT WAVE AS
MAX TEMPS TOP OUT IN THE 70S AND 80S.

IT IS NOT OUT OF THE REALM OF POSSIBILITY THAT A FEW SHWRS MAY LINGER
INTO WED EVENING OVR CNTRL AND E-CNTRL WI. HOWEVER...SINCE THE TIMING OF
THE BNDRYS DEPARTURE STILL IN DOUBT...HAVE RUN WITH THE PREV FCST AND
KEPT THINGS DRY WED NGT. A WEAK AREA OF HI PRES SETTLES OVR THE WRN
GREAT LKS FOR THU THUS PROVIDING FOR A RETURN TO SUNSHINE WITH MORE
TYPICAL SUMMERTIME TEMPS AND LESS HUMIDITY. THIS HI PRES WL THEN
DOMINATE OUR WEATHER THRU FRI NGT KEEPING QUIET WEATHER CONDITIONS
ACROSS THE ENTIRE GREAT LKS. TEMPS EXPECTED TO REMAIN NEAR NORMAL FOR
EARLY AUG. AS THE HI SLIPS EWD NXT SAT...RETURN FLOW DVLPS ACROSS WI
WITH THE START OF A WARM-UP AND ADDL MSTR. LACK OF ANY TRIGGER PRECLUDES
THE MENTIONING OF ANY PCPN AT THIS TIME.

&&

.GRB...WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

TE/KALLAS
WEATHER.GOV/GREENBAY

Hazardous weather outlook, Jul 30, 7:15 AM CDT, 26 minutes before

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In the hours before

Local storm report, Jul 30, 6:19 AM CDT, 1 hour 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
619 AM CDT SUN JUL 30 2006

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

0615 AM     TSTM WND DMG     ELAND                   44.88N 89.19W
07/30/2006                   SHAWANO            WI   LAW ENFORCEMENT

            3 TREES DOWN.

&&

ECKBERG

Local storm report, Jul 30, 6:44 AM CDT, 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
644 AM CDT SUN JUL 30 2006

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

0627 AM     TSTM WND GST     WAUPACA                 44.34N 89.06W
07/30/2006  M59.00 MPH       WAUPACA            WI   TRAINED SPOTTER

            59 MPH THUNDERSTORM WIND GUST.

0627 AM     TSTM WND GST     3 E PLAINFIELD          44.21N 89.42W
07/30/2006  E65.00 MPH       WAUSHARA           WI   TRAINED SPOTTER

            ESTIMATED WIND GUST OF 65 MPH. SPOTTER CAR WAS ALMOST
            BLOWN OFF THE ROAD.

0629 AM     TSTM WND DMG     CLINTONVILLE            44.61N 88.75W
07/30/2006                   WAUPACA            WI   LAW ENFORCEMENT

            WIDESPREAD TREES AND POWERLINES DOWN THROUGHOUT THE CITY.

&&

ECKBERG

Local storm report, Jul 30, 7:04 AM CDT, 37 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 30, 5:52 AM CDT	Severe Thunderstorm Warning	GRB	Shawano, Waupaca	38 min
Jul 30, 6:21 AM CDT	Severe Thunderstorm Warning	GRB	Outagamie	39 min
Jul 30, 6:37 AM CDT	Severe Thunderstorm Warning	GRB	Brown, Oconto, Shawano, Waupaca, Waushara, Winnebago	53 min
Jul 30, 6:53 AM CDT	Severe Thunderstorm Warning	GRB	Calumet, Kewaunee, Manitowoc	67 min
Jul 30, 6:56 AM CDT	Special Marine Warning	GRB		2 hr
Jul 30, 7:54 AM CDT	Heat Advisory	GRB	Brown, Calumet, Door, Florence, Forest, Kewaunee and 16 more	56 hr

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2006 Every severe thunderstorm warning in 2006

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.