Alert archive / Wisconsin / High Wind Watches in 2009

High Wind Watch 1, NWS Green Bay, WI

September 27, 2009Door County, Wisconsin

NWS Green Bay, WI issued this high wind watch at Sep 27, 2009, 4:07 AM CDT for Door County, Wisconsin. It took effect at Sep 28, 2009, 4:00 AM CDT. It was in force for .

The area

The counties it named.

The facts

Issued
Sep 27, 2009, 4:07 AM CDT (09:07 UTC)
In effect from
Sep 28, 2009, 4:00 AM CDT
Expired
Sep 27, 2009, 3:40 PM CDT
In force
Issued by
NWS Green Bay, WI

County Door County, WI

The radar

The Green Bay radar (KGRB), 71 km from the middle of the area, began a volume at 09:11 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, 9.1 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-pSkew-T log-p diagram, Green Bay/Straub, WI at 00:00Z on 2009-09-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 56 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 00:00Z on 2009-09-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
56 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
1267 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
-4 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 high wind watch 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 high wind watch went out at Sep 27, 3:21 AM CDT, 46 minutes earlier.

Area forecast discussion, Sep 27, 3:21 AM CDT, 46 minutes before
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Hazardous weather outlook, Sep 26, 5:18 AM CDT, 22 hours 49 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREEN BAY WI
518 AM CDT SAT SEP 26 2009

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-271030-
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-
518 AM CDT SAT SEP 26 2009

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

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THUNDERSTORMS ARE POSSIBLE SUNDAY AFTERNOON AHEAD OF A STRONG COLD
FRONT. THERE IS A CHANCE FOR DAMAGING WINDS WITH SOME OF THE
STORMS...MAINLY EAST OF AN IRON MOUNTAIN TO WAUSAU LINE. A STRONG
STORM WILL SLOWLY MOVE AWAY FROM WISCONSIN ON MONDAY. BEHIND THE
LOW...WIND GUSTS OVER 40 MPH ARE POSSIBLE SUNDAY NIGHT INTO MONDAY
AFTERNOON. WIND GUSTS OVER 50 MPH ARE POSSIBLE ACROSS DOOR COUNTY
LATE SUNDAY NIGHT THEN CONTINUE INTO MONDAY NIGHT. THE WINDS WILL
GRADUALLY SUBSIDE MONDAY NIGHT INTO TUESDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.

LMZ521-522-541>543-271030-
THE BAY OF GREEN BAY SOUTH OF A LINE FROM CEDAR RIVER MI TO ROCK
ISLAND PASSAGE-LAKE MICHIGAN FROM WASHINGTON ISLAND TO SHEBOYGAN-
518 AM CDT SAT SEP 26 2009

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 NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

WEST TO NORTHWEST GALES ARE LIKELY SUNDAY NIGHT AND THEN CONTINUE
INTO TUESDAY MORNING AS LOW PRESSURE SLOWLY MOVES EAST AWAY FROM
WISCONSIN. A FEW STORM FORCE GUSTS ARE POSSIBLE LATE SUNDAY NIGHT
INTO MONDAY EVENING OVER NORTHERN DOOR COUNTY.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 27, 4:13 AM CDTSmall Craft AdvisoryGRB18 hr

Nearby

High Wind Watches in Wisconsin, 2009Every high wind watch in 2009

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.