Alert archive / Michigan / Special Weather Statements in 2012

Special Weather Statement, NWS Grand Rapids, MI

June 16, 2012Allegan County, Van Buren County, Michigan

NWS Grand Rapids, MI issued this special weather statement at Jun 16, 2012, 5:26 PM EDT for Allegan County, Van Buren County, Michigan. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 16, 2012, 5:26 PM EDT (21:26 UTC)
Expired: Jun 16, 2012, 6:30 PM EDT
In force: 64 min
Issued by: NWS Grand Rapids, MI

Counties Allegan County, MI, Van Buren County, MI

The radar

The Grand Rapids radar (KGRR), 80 km from the middle of the area, began a volume at 21:26 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

Lincoln, IL (KILX), launched 12:00Z, 9.4 hours before the alert went out and 317 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: 627 J/kg
Mixed-layer CIN: -110 J/kg
Mixed-layer LCL: 1273 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 97 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 16, 3:45 PM EDT, 1 hour 41 minutes earlier.

Area forecast discussion, Jun 16, 3:45 PM EDT, 1 hour 41 minutes before

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Hazardous weather outlook, Jun 16, 4:45 AM EDT, 12 hours 41 minutes before

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In the hours before

Special weather statement, Jun 16, 4:23 PM EDT, 1 hour 3 minutes before

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Local storm report, Jun 16, 5:08 PM EDT, 18 minutes before

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Local storm report, Jun 16, 5:11 PM EDT, 15 minutes before

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Local storm report, Jun 16, 5:17 PM EDT, 9 minutes before

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Special weather statement, Jun 16, 5:26 PM EDT, 0 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
Jun 16, 4:23 PM EDT	Special Weather Statement	GRR	Allegan	67 min
Jun 16, 4:24 PM EDT	Special Marine Warning	GRR		51 min
Jun 16, 5:10 PM EDT	Severe Thunderstorm Warning	GRR	Ottawa	33 min
Jun 16, 5:23 PM EDT	Severe Thunderstorm Warning	GRR	Kent	37 min
Jun 16, 5:44 PM EDT	Severe Thunderstorm Warning	GRR	Montcalm	46 min

Nearby

Special Weather Statements in Michigan, 2012 Every special weather statement in 2012

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.