Alert archive / Wisconsin / Winter Storm Warnings in 2019

Winter Storm Warning 12, NWS Green Bay, WI

November 29, 201920 counties in Wisconsin

NWS Green Bay, WI issued this winter storm warning at Nov 29, 2019, 2:48 PM CST for 20 counties in Wisconsin. It took effect at Nov 30, 2019, 3:00 PM CST. It was in force for 30 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Nov 29, 2019, 2:48 PM CST (20:48 UTC)
In effect from
Nov 30, 2019, 3:00 PM CST
Expired
Dec 1, 2019, 8:32 PM CST
In force
30 hr
Issued by
NWS Green Bay, WI

Counties Brown County, WI, Calumet County, WI, Door County, WI, Florence County, WI, Forest 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, Oneida County, WI, Outagamie County, WI, Portage County, WI, Shawano County, WI, Vilas County, WI, Waupaca County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 68 km from the middle of the area, began a volume at 20:45 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, 8.8 hours before the alert went out and 70 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 12:00Z on 2019-11-29Temperature 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, Green Bay/Straub, WI at 12:00Z on 2019-11-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.1939587897117136Sfc1 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
549 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
174 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 29, 3:51 AM CSTWinter Storm WatchGRBBrown, Door, Florence, Forest, Kewaunee, Langlade and 12 more18 hr
Nov 29, 4:07 AM CSTGale WatchGRB11 hr
Nov 29, 1:56 PM CSTLakeshore Flood WarningGRBBrown, Door, Kewaunee, Manitowoc, Marinette, Oconto57 hr
Nov 29, 2:48 PM CSTWinter Weather AdvisoryGRBBrown, Calumet, Kewaunee, Manitowoc, Outagamie, Portage and 4 more54 hr
Nov 29, 2:54 PM CSTGale WarningGRB53 hr

Nearby

Winter Storm Warnings in Wisconsin, 2019Every winter storm warning in 2019

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.