Alert archive / Wisconsin / Snow Advisories in 2007

Snow Advisory 6, NWS Green Bay, WI

April 3, 20074 counties in Wisconsin

NWS Green Bay, WI issued this snow advisory at Apr 3, 2007, 4:29 AM CDT for 4 counties in Wisconsin. It took effect at Apr 3, 2007, 3:00 PM CDT. It was in force for 62 min.

The area

The counties it named.

The facts

Issued
Apr 3, 2007, 4:29 AM CDT (09:29 UTC)
In effect from
Apr 3, 2007, 3:00 PM CDT
Expired
Apr 3, 2007, 4:02 PM CDT
In force
62 min
Issued by
NWS Green Bay, WI

Counties Langlade County, WI, Lincoln County, WI, Marinette County, WI, Oconto County, WI

The radar

The Green Bay radar (KGRB), 97 km from the middle of the area, began a volume at 09:28 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

Minneapolis, MN (KMPX), launched 00:00Z, 9.5 hours before the alert went out and 383 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, Minneapolis, MN at 00:00Z on 2007-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Minneapolis, MN at 00:00Z on 2007-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
935 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
251 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 snow 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 snow advisory went out at Apr 2, 10:45 PM CDT, 5 hours 44 minutes earlier.

Area forecast discussion, Apr 2, 10:45 PM CDT, 5 hours 44 minutes before
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Hazardous weather outlook, Apr 2, 5:15 AM CDT, 23 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREEN BAY WI
515 AM CDT MON APR 2 2007

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-031015-
VILAS-ONEIDA-FOREST-FLORENCE-NORTHERN MARINETTE-SOUTHERN MARINETTE-
LINCOLN-LANGLADE-MENOMINEE-NORTHERN OCONTO-SOUTHERN OCONTO-DOOR-
MARATHON-SHAWANO-WOOD-PORTAGE-WAUPACA-OUTAGAMIE-BROWN-KEWAUNEE-WAUSHARA-
WINNEBAGO-CALUMET-MANITOWOC-
415 AM CST MON APR 2 2007

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

.DAY ONE...TODAY AND TONIGHT

NO SEVERE WEATHER IS EXPECTED...BUT THUNDERSTORMS ARE POSSIBLE TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE IS A POTENTIAL FOR ACCUMULATING SNOWS ACROSS NORTHEAST WISCONSIN
TUESDAY AND TUESDAY NIGHT AS LOW PRESSURE TRACKS THROUGH SOUTHERN LAKE
MICHIGAN. THE HIGHEST AMOUNTS ARE EXPECTED TO BE NORTH OF A LINE FROM
MERRILL TO IRON MOUNTAIN MICHIGAN. 4 TO 6 INCHES OF SNOW IS POSSIBLE
NORTH OF THIS LINE. IN ADDITION TO THE SNOW...BLUSTERY CONDITIONS WILL
DEVELOP AS THE LOW PRESSURE DEPARTS. BLOWING AND DRIFTING OF THE NEW
SNOW MAY MAKE DRIVING DIFFICULT AT TIMES DUE TO REDUCED VISIBILITIES.

ADDITIONAL LAKE EFFECT SNOW SHOWERS OR FLURRIES ARE POSSIBLE TUESDAY
NIGHT THROUGH THURSDAY ACROSS NORTHERN WISCONSIN. ADDITIONAL MINOR
ACCUMULATIONS ARE POSSIBLE OVER THE SNOWBELT REGION OF VILAS COUNTY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY OR TONIGHT.

LMZ521-522-541>543-564-031015-
THE BAY OF GREEN BAY SOUTH OF A LINE FROM CEDAR RIVER MI TO ROCK ISLAND
PASSAGE-LAKE MICHIGAN FROM WASHINGTON ISLAND TO SHEBOYGAN-THE ADJOINING
WISCONSIN WATERS OF LAKE MICHIGAN OUT TO MID-LAKE-
415 AM CST MON APR 2 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WATERS OF CENTRAL AND
SOUTHERN GREEN BAY...AND LAKE MICHIGAN FROM ROCK ISLAND PASSAGE
TO SHEBOYGAN.

.DAY ONE...TODAY AND TONIGHT

A SMALL CRAFT ADVISORY IS IN EFFECT INTO THIS MORNING.

THUNDERSTORMS ARE POSSIBLE TONIGHT...BUT ARE NOT EXPECTED TO BE SEVERE.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

SMALL CRAFT ADVISORY CONDITIONS ARE EXPECTED TUESDAY NIGHT THROUGH
THURSDAY.

TE/KALLAS
WEATHER.GOV/GREENBAY

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 3, 4:02 PM CDTSnow and Blowing Snow AdvisoryGRBFlorence, Forest, Langlade, Lincoln, Marinette, Oconto and 1 more16 hr
Apr 3, 4:06 PM CDTWind AdvisoryGRBBrown, Calumet, Door, Kewaunee, Manitowoc, Marathon and 10 more45 hr

Nearby

Snow Advisories in Wisconsin, 2007Every snow advisory in 2007

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.