Alert archive / Wisconsin / Wind Chill Advisories in 2009

Wind Chill Advisory 1, NWS Milwaukee, WI

January 13, 20098 counties in Wisconsin

NWS Milwaukee, WI issued this wind chill advisory at Jan 13, 2009, 3:31 AM CST for 8 counties in Wisconsin. It took effect at Jan 13, 2009, 6:00 AM CST. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: Jan 13, 2009, 3:31 AM CST (09:31 UTC)
In effect from: Jan 13, 2009, 6:00 AM CST
Expired: Jan 13, 2009, 10:58 AM CST
In force: 5 hr
Issued by: NWS Milwaukee, WI

Counties Columbia County, WI, Dane County, WI, Green County, WI, Green Lake County, WI, Iowa County, WI, Lafayette County, WI, Marquette County, WI, Sauk County, WI

The radar

The Milwaukee radar (KMKX), 92 km from the middle of the area, began a volume at 09:34 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, 9.5 hours before the alert went out and 184 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 580 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 181 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 wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Milwaukee, WI wrote its last area forecast discussion before this wind chill advisory went out at Jan 12, 1:49 PM CST, 13 hours 42 minutes earlier.

Area forecast discussion, Jan 12, 1:49 PM CST, 13 hours 42 minutes before

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Hazardous weather outlook, Jan 12, 6:32 PM CST, 8 hours 59 minutes before

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In the hours before

Local storm report, Jan 12, 10:31 PM CST, 5 hours before

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Local storm report, Jan 12, 10:33 PM CST, 4 hours 58 minutes before

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Local storm report, Jan 12, 11:26 PM CST, 4 hours 5 minutes before

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Local storm report, Jan 12, 11:46 PM CST, 3 hours 45 minutes before

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Local storm report, Jan 13, 12:07 AM CST, 3 hours 24 minutes before

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Local storm report, Jan 13, 1:55 AM CST, 1 hour 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
155 AM CST TUE JAN 13 2009

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

0155 AM     SNOW             RANDOM LAKE             43.56N 87.96W
01/13/2009  M4.0 INCH        SHEBOYGAN          WI   TRAINED SPOTTER

&&

FRANKS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 13, 3:31 AM CST	Winter Weather Advisory	MKX	Columbia, Dane, Dodge, Green, Iowa, Jefferson and 11 more	11 hr
Jan 13, 3:35 PM CST	Small Craft Advisory	MKX		60 hr
Jan 13, 3:35 PM CST	Heavy Freezing Spray Watch	MKX		12 hr
Jan 13, 3:38 PM CST	Wind Chill Advisory	MKX	Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 14 more	12 hr

Nearby

Wind Chill Advisories in Wisconsin, 2009 Every wind chill advisory 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.