Alert archive / Michigan / Wind Chill Advisories in 2015

Wind Chill Advisory 2, NWS Detroit, MI

January 6, 201517 counties in Michigan

NWS Detroit, MI issued this wind chill advisory at Jan 6, 2015, 3:15 PM EST for 17 counties in Michigan. It took effect at Jan 7, 2015, 6:00 AM EST. It was in force for 34 hr.

The area

The counties it named.

The facts

Issued: Jan 6, 2015, 3:15 PM EST (20:15 UTC)
In effect from: Jan 7, 2015, 6:00 AM EST
Expired: Jan 8, 2015, 4:00 PM EST
In force: 34 hr
Issued by: NWS Detroit, MI

Counties Bay County, MI, Genesee County, MI, Huron County, MI, Lapeer County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Midland County, MI, Monroe County, MI, Oakland County, MI, Saginaw County, MI, Saint Clair County, MI, Sanilac County, MI, Shiawassee County, MI, Tuscola County, MI, Washtenaw County, MI, Wayne County, MI

The radar

The Detroit radar (KDTX), 26 km from the middle of the area, began a volume at 20:13 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

Alpena, MI (KAPX), launched 12:00Z, 8.3 hours before the alert went out and 254 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: 485 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 171 m²/s²
0-3 km storm-relative helicity: 126 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 Detroit, MI wrote its last area forecast discussion before this wind chill advisory went out at Jan 6, 3:14 PM EST, 1 minute earlier.

Area forecast discussion, Jan 6, 3:14 PM EST, 1 minute before

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Hazardous weather outlook, Jan 6, 3:15 PM EST, 0 minutes before

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In the hours before

Local storm report, Jan 6, 11:21 AM EST, 3 hours 54 minutes before

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The office that day

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

Issued	Product	Office	Lasted
Jan 6, 3:57 AM EST	Gale Warning	DTX	3 days
Jan 6, 3:57 AM EST	Heavy Freezing Spray Warning	DTX	5 days
Jan 6, 3:38 PM EST	Small Craft Advisory	DTX	12 hr

Nearby

Wind Chill Advisories in Michigan, 2015 Every wind chill advisory in 2015

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.