Alert archive / Michigan / Wind Chill Advisories in 2015

Wind Chill Advisory 5, NWS Grand Rapids, MI

February 15, 201523 counties in Michigan

NWS Grand Rapids, MI issued this wind chill advisory at Feb 15, 2015, 11:36 AM EST for 23 counties in Michigan. It was in force for 22 hr.

The area

The counties it named.

The facts

Issued: Feb 15, 2015, 11:36 AM EST (16:36 UTC)
Expired: Feb 16, 2015, 10:00 AM EST
In force: 22 hr
Issued by: NWS Grand Rapids, MI

All 23 counties

Allegan County, MI, Barry County, MI, Calhoun County, MI, Clare County, MI, Clinton County, MI, Eaton County, MI, Gratiot County, MI, Ingham County, MI, Ionia County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Lake County, MI, Mason County, MI, Mecosta County, MI, Montcalm County, MI, Muskegon County, MI, Newaygo County, MI, Oceana County, MI, Osceola County, MI, Ottawa County, MI, Van Buren County, MI

The radar

The Grand Rapids radar (KGRR), 27 km from the middle of the area, began a volume at 16:38 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

Detroit, MI (KDTX), launched 12:00Z, 4.6 hours before the alert went out and 165 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: 832 m above ground
0-6 km bulk shear: 110 kt
0-1 km storm-relative helicity: -22 m²/s²
0-3 km storm-relative helicity: 40 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 Grand Rapids, MI wrote its last area forecast discussion before this wind chill advisory went out at Feb 15, 11:06 AM EST, 30 minutes earlier.

Area forecast discussion, Feb 15, 11:06 AM EST, 30 minutes before

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Hazardous weather outlook, Feb 15, 5:50 AM EST, 5 hours 46 minutes before

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In the hours before

Local storm report, Feb 15, 8:19 AM EST, 3 hours 17 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 14, 7:45 PM EST	Wind Chill Warning	GRR	Allegan, Barry, Calhoun, Clare, Clinton, Eaton and 17 more	16 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.