Alert archive / Michigan / Special Weather Statements in 2012

Special Weather Statement, NWS Grand Rapids, MI

May 29, 2012Gratiot County, Ionia County, Michigan

NWS Grand Rapids, MI issued this special weather statement at May 29, 2012, 2:11 AM EDT for Gratiot County, Ionia 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: May 29, 2012, 2:11 AM EDT (06:11 UTC)
Expired: May 29, 2012, 3:15 AM EDT
In force: 64 min
Issued by: NWS Grand Rapids, MI

Counties Gratiot County, MI, Ionia County, MI

The radar

The Grand Rapids radar (KGRR), 72 km from the middle of the area, began a volume at 06:11 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 00:00Z, 6.2 hours before the alert went out and 118 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: 455 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 2268 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 179 m²/s²
0-3 km storm-relative helicity: 297 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.2

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 May 29, 1:52 AM EDT, 19 minutes earlier.

Area forecast discussion, May 29, 1:52 AM EDT, 19 minutes before

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Hazardous weather outlook, May 28, 2:59 PM EDT, 11 hours 12 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
259 PM EDT MON MAY 28 2012

MIZ037>040-043>046-050>052-056>059-064>067-071>074-291900-
MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-
MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-
INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON-
259 PM EDT MON MAY 28 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED EVENING INTO TONIGHT. THE
MAIN THREAT WITH THESE STORMS IS LARGE HAIL AND DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON OR EVENING.

LMZ844>849-291900-
ST JOSEPH TO SOUTH HAVEN MI-SOUTH HAVEN TO HOLLAND MI-
HOLLAND TO GRAND HAVEN MI-GRAND HAVEN TO WHITEHALL MI-
WHITEHALL TO PENTWATER MI-PENTWATER TO MANISTEE MI-
259 PM EDT MON MAY 28 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

A MODERATE RISK FOR RIP CURRENTS WILL EXIST NORTH OF VAN BUREN
COUNTY THROUGH TONIGHT.

STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED THIS AFTERNOON OR
EVENING. THE MAIN THREAT WITH THESE STORMS IS LARGE HAIL AND
DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON OR EVENING.

OSTUNO MJS

In the hours before

Special weather statement, May 29, 12:25 AM EDT, 1 hour 46 minutes before

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Special weather statement, May 29, 12:32 AM EDT, 1 hour 39 minutes before

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Special weather statement, May 29, 12:51 AM EDT, 1 hour 20 minutes before

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Special weather statement, May 29, 1:23 AM EDT, 48 minutes before

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Local storm report, May 29, 1:41 AM EDT, 30 minutes before

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Special weather statement, May 29, 2:11 AM 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
May 28, 8:29 PM EDT	Special Marine Warning	GRR		2 hr
May 28, 8:41 PM EDT	Special Weather Statement	GRR	Mason	64 min
May 28, 9:05 PM EDT	Special Weather Statement	GRR	Muskegon, Oceana, Ottawa	55 min
May 28, 9:21 PM EDT	Special Weather Statement	GRR	Osceola	54 min
May 28, 9:35 PM EDT	Special Weather Statement	GRR	Muskegon, Newaygo, Oceana	25 min
May 28, 10:03 PM EDT	Special Weather Statement	GRR	Clare, Kent, Mecosta, Newaygo, Osceola	42 min
May 28, 10:19 PM EDT	Special Weather Statement	GRR	Kent	26 min
May 28, 10:36 PM EDT	Special Weather Statement	GRR	Ottawa	24 min
May 28, 11:12 PM EDT	Special Weather Statement	GRR	Ionia, Kent	33 min
May 28, 11:19 PM EDT	Special Marine Warning	GRR		56 min
May 28, 11:25 PM EDT	Severe Thunderstorm Warning	GRR	Muskegon, Newaygo	35 min
May 28, 11:42 PM EDT	Special Weather Statement	GRR	Ottawa	63 min
May 28, 11:58 PM EDT	Severe Thunderstorm Warning	GRR	Ottawa	33 min
May 29, 12:25 AM EDT	Special Weather Statement	GRR	Kent	50 min
May 29, 12:32 AM EDT	Special Weather Statement	GRR	Kent, Ottawa	43 min
May 29, 12:51 AM EDT	Special Weather Statement	GRR	Ionia, Kent	54 min
May 29, 1:23 AM EDT	Special Weather Statement	GRR	Clinton, Gratiot, Ionia, Kent, Montcalm	52 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.