Alert archive / Michigan / Special Weather Statements in 2012

Special Weather Statement, NWS Grand Rapids, MI

March 2, 20124 counties in Michigan

NWS Grand Rapids, MI issued this special weather statement at Mar 2, 2012, 4:26 PM EST for 4 counties in 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: Mar 2, 2012, 4:26 PM EST (21:26 UTC)
Expired: Mar 2, 2012, 5:30 PM EST
In force: 64 min
Issued by: NWS Grand Rapids, MI

Counties Allegan County, MI, Kalamazoo County, MI, Ottawa County, MI, Van Buren County, MI

The radar

The Grand Rapids radar (KGRR), 64 km from the middle of the area, began a volume at 21:29 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 12:00Z, 9.4 hours before the alert went out and 274 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: 614 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: -15 m²/s²
0-3 km storm-relative helicity: 57 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 Mar 2, 3:01 PM EST, 1 hour 25 minutes earlier.

Area forecast discussion, Mar 2, 3:01 PM EST, 1 hour 25 minutes before

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Hazardous weather outlook, Mar 2, 11:40 AM EST, 4 hours 46 minutes before

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In the hours before

Special weather statement, Mar 2, 4:26 PM EST, 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
Mar 2, 3:12 AM EST	High Wind Watch	GRR	Allegan, Barry, Calhoun, Clinton, Eaton, Gratiot and 8 more	13 hr
Mar 2, 3:22 AM EST	Winter Storm Warning	GRR	Clare, Lake, Mason, Mecosta, Muskegon, Newaygo and 2 more	38 hr
Mar 2, 3:22 AM EST	Winter Weather Advisory	GRR	Isabella, Mecosta	13 hr
Mar 2, 4:36 AM EST	Gale Warning	GRR		11 hr
Mar 2, 10:36 AM EST	River Flood Advisory	GRR	Jackson	30 hr
Mar 2, 10:36 AM EST	River Flood Advisory	GRR	Ingham	35 hr
Mar 2, 10:36 AM EST	River Flood Advisory	GRR	Clinton	15 days
Mar 2, 10:36 AM EST	River Flood Advisory	GRR	Barry	6 days
Mar 2, 3:53 PM EST	High Wind Warning	GRR	Allegan, Barry, Calhoun, Clinton, Eaton, Gratiot and 9 more	15 hr
Mar 2, 3:57 PM EST	Storm Warning	GRR		15 hr
Mar 2, 5:18 PM EST	Special Weather Statement	GRR	Barry, Eaton, Ionia, Kalamazoo, Kent, Lake and 4 more	57 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.