Alert archive / Michigan / Freeze Warnings in 2006

Freeze Warning 5, NWS Grand Rapids, MI

September 28, 20066 counties in Michigan

NWS Grand Rapids, MI issued this freeze warning at Sep 28, 2006, 9:14 PM EDT for 6 counties in Michigan. It took effect at Sep 29, 2006, 12:00 AM EDT. It was in force for 8 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: Sep 28, 2006, 9:14 PM EDT (01:14 UTC)
In effect from: Sep 29, 2006, 12:00 AM EDT
Expired: Sep 29, 2006, 7:58 AM EDT
In force: 8 hr
Issued by: NWS Grand Rapids, MI

Counties Clare County, MI, Isabella County, MI, Lake County, MI, Mecosta County, MI, Newaygo County, MI, Osceola County, MI

The radar

The Grand Rapids radar (KGRR), 102 km from the middle of the area, began a volume at 01:14 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 00:00Z, 1.2 hours before the alert went out and 272 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: 12 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 894 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: -2 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 freeze 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 freeze warning went out at Sep 28, 8:45 PM EDT, 29 minutes earlier.

Area forecast discussion, Sep 28, 8:45 PM EDT, 29 minutes before

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Hazardous weather outlook, Sep 28, 11:36 AM EDT, 9 hours 38 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
Sep 29, 8:49 AM EDT	Special Marine Warning	GRR		26 min
Sep 29, 9:11 AM EDT	Special Marine Warning	GRR		19 min
Sep 29, 11:02 AM EDT	Special Marine Warning	GRR		43 min
Sep 29, 11:13 AM EDT	Special Marine Warning	GRR		32 min
Sep 29, 11:18 AM EDT	Tornado Warning	GRR	Allegan, Ottawa	27 min

Nearby

Freeze Warnings in Michigan, 2006 Every freeze 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.