Alert archive / Michigan / Ice Storm Warnings in 2006

Ice Storm Warning 2, NWS Grand Rapids, MI

December 1, 200610 counties in Michigan

NWS Grand Rapids, MI issued this ice storm warning at Dec 1, 2006, 6:53 AM EST for 10 counties in Michigan. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Dec 1, 2006, 6:53 AM EST (11:53 UTC)
Expired: Dec 1, 2006, 10:52 AM EST
In force: 4 hr
Issued by: NWS Grand Rapids, MI

Counties Allegan County, MI, Barry County, MI, Calhoun County, MI, Clinton County, MI, Eaton County, MI, Ingham County, MI, Ionia County, MI, Jackson County, MI, Kalamazoo County, MI, Van Buren County, MI

The radar

The Grand Rapids radar (KGRR), 53 km from the middle of the area, began a volume at 11:53 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 00:00Z, 11.9 hours before the alert went out and 323 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: 1300 m above ground
0-6 km bulk shear: 79 kt
0-1 km storm-relative helicity: -59 m²/s²
0-3 km storm-relative helicity: 37 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 ice storm warning 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 ice storm warning went out at Dec 1, 4:45 AM EST, 2 hours 8 minutes earlier.

Area forecast discussion, Dec 1, 4:45 AM EST, 2 hours 8 minutes before

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Hazardous weather outlook, Dec 1, 5:11 AM EST, 1 hour 42 minutes before

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In the hours before

Local storm report, Dec 1, 6:46 AM EST, 7 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
Dec 1, 10:52 AM EST	Winter Weather Advisory	GRR	Allegan, Barry, Calhoun, Clinton, Eaton, Gratiot and 8 more	7 hr

Nearby

Ice Storm Warnings in Michigan, 2006 Every ice storm warning in 2006

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.