Alert archive / Michigan / Wind Chill Advisories in 2007

Wind Chill Advisory 5, NWS Marquette, MI

February 7, 20076 counties in Michigan

NWS Marquette, MI issued this wind chill advisory at Feb 7, 2007, 3:45 PM EST for 6 counties in Michigan. It took effect at Feb 7, 2007, 11:00 PM EST. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Feb 7, 2007, 3:45 PM EST (20:45 UTC)
In effect from
Feb 7, 2007, 11:00 PM EST
Expired
Feb 8, 2007, 10:00 AM EST
In force
11 hr
Issued by
NWS Marquette, MI

Counties Baraga County, MI, Dickinson County, MI, Gogebic County, MI, Houghton County, MI, Iron County, MI, Marquette County, MI

The radar

The Marquette radar (KMQT), 70 km from the middle of the area, began a volume at 20:47 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 228 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 2007-02-07Temperature 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 2007-02-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.1939587897117136156175Sfc1 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
1589 m above ground
0-6 km bulk shear
96 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
244 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
Feb 7, 9:30 AM ESTLake Effect Snow and Blowing Snow AdvisoryMQTAlger, Houghton, Keweenaw, Luce, Ontonagon, Schoolcraft36 hr

Nearby

Wind Chill Advisories in Michigan, 2007Every wind chill 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.