Alert archive / Michigan / Wind Chill Advisories in 2018

Wind Chill Advisory 2, NWS Marquette, MI

February 4, 2018Gogebic County, Iron County, Michigan

NWS Marquette, MI issued this wind chill advisory at Feb 4, 2018, 2:53 PM CST for Gogebic County, Iron County, Michigan. It took effect at Feb 4, 2018, 6:00 PM CST. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Feb 4, 2018, 2:53 PM CST (20:53 UTC)
In effect from: Feb 4, 2018, 6:00 PM CST
Expired: Feb 5, 2018, 9:00 AM CST
In force: 15 hr
Issued by: NWS Marquette, MI

Counties Gogebic County, MI, Iron County, MI

The radar

The Marquette radar (KMQT), 125 km from the middle of the area, began a volume at 20:56 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, 8.9 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-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: 856 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 295 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 Marquette, MI wrote its last area forecast discussion before this wind chill advisory went out at Feb 3, 5:56 PM CST, 20 hours 57 minutes earlier.

Area forecast discussion, Feb 3, 5:56 PM CST, 20 hours 57 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 4, 2:56 AM CST	Winter Weather Advisory	MQT	Houghton, Keweenaw	39 hr

Nearby

Wind Chill Advisories in Michigan, 2018 Every wind chill advisory in 2018

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.