Alert archive / Michigan / Wind Chill Advisories in 2008

Wind Chill Advisory 9, NWS Marquette, MI

December 21, 2008Gogebic County, Iron County, Michigan

NWS Marquette, MI issued this wind chill advisory at Dec 21, 2008, 3:31 PM CST for Gogebic County, Iron County, Michigan. It took effect at Dec 21, 2008, 9:00 PM CST. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Dec 21, 2008, 3:31 PM CST (21:31 UTC)
In effect from
Dec 21, 2008, 9:00 PM CST
Expired
Dec 22, 2008, 10:00 AM CST
In force
13 hr
Issued by
NWS Marquette, MI

Counties Gogebic County, MI, Iron County, MI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.5 hours before the alert went out and 224 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 2008-12-21Temperature 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 2008-12-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.19395878Sfc1 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
559 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Marquette, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 21, 3:31 PM CSTLake Effect Snow AdvisoryMQTKeweenaw14 hr

Nearby

Wind Chill Advisories in Michigan, 2008Every wind chill advisory in 2008

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.