Alert archive / Michigan / Special Weather Statements in 2012

Special Weather Statement, NWS Grand Rapids, MI

June 18, 20124 counties in Michigan

NWS Grand Rapids, MI issued this special weather statement at Jun 18, 2012, 9:44 AM EDT for 4 counties in Michigan. It was in force for 61 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 18, 2012, 9:44 AM EDT (13:44 UTC)
Expired: Jun 18, 2012, 10:45 AM EDT
In force: 61 min
Issued by: NWS Grand Rapids, MI

Counties Clinton County, MI, Eaton County, MI, Gratiot County, MI, Ionia County, MI

The radar

The Grand Rapids radar (KGRR), 69 km from the middle of the area, began a volume at 13:43 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 12:00Z, 1.7 hours before the alert went out and 112 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: 1525 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 99 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 18, 7:47 AM EDT, 1 hour 57 minutes earlier.

Area forecast discussion, Jun 18, 7:47 AM EDT, 1 hour 57 minutes before

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Hazardous weather outlook, Jun 18, 3:20 AM EDT, 6 hours 24 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
320 AM EDT MON JUN 18 2012

MIZ037>040-043>046-050>052-056>059-064>067-071>074-191000-
MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-
MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-
INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON-
320 AM EDT MON JUN 18 2012

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED TODAY AND TONIGHT. SOME OF THE
STORMS MAY BECOME SEVERE WITH DAMAGING WINDS AND/OR LARGE HAIL...
ESPECIALLY NORTH OF A LINE FROM MUSKEGON TO ALMA. THUNDERSTORM
MOVEMENT WILL BE FROM WEST TO EAST AT 30 TO 50 MPH.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

HEAT INDICES COULD REACH 95 TO 100 INLAND FROM LAKE MICHIGAN TUESDAY
AND WEDNESDAY. SCATTERED THUNDERSTORMS ARE EXPECTED AGAIN LATE
WEDNESDAY INTO EARLY THURSDAY. SEVERE WEATHER IS POSSIBLE WEDNESDAY
EVENING MAINLY NORTH AND WEST OF GRAND RAPIDS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY AND TONIGHT... AND AGAIN
WEDNESDAY EVENING.

LMZ844>849-191000-
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-
320 AM EDT MON JUN 18 2012

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

.DAY ONE...TODAY AND TONIGHT

WINDS AND WAVES WILL BE HAZARDOUS TO SMALL CRAFT AND BEACH GOERS
TODAY AND TONIGHT.

SCATTERED THUNDERSTORMS ARE EXPECTED TODAY AND TONIGHT. SOME OF THE
STORMS MAY BECOME SEVERE WITH DAMAGING WINDS AND/OR LARGE HAIL...
ESPECIALLY NORTH OF MUSKEGON. THUNDERSTORM MOVEMENT WILL BE FROM
WEST TO EAST AT 30 TO 50 KNOTS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

WINDS AND WAVES COULD REMAIN HAZARDOUS TO SMALL CRAFT AND BEACH GOERS
BOTH TUESDAY AND WEDNESDAY. SCATTERED THUNDERSTORMS ARE EXPECTED
AGAIN LATE WEDNESDAY INTO EARLY THURSDAY. SEVERE WEATHER IS POSSIBLE
WEDNESDAY EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY AND TONIGHT... AND AGAIN
WEDNESDAY EVENING.

MEADE

In the hours before

Local storm report, Jun 18, 9:08 AM EDT, 36 minutes before

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Local storm report, Jun 18, 9:25 AM EDT, 19 minutes before

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Local storm report, Jun 18, 9:29 AM EDT, 15 minutes before

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Local storm report, Jun 18, 9:38 AM EDT, 6 minutes before

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Local storm report, Jun 18, 9:41 AM EDT, 3 minutes before

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Special weather statement, Jun 18, 9:44 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
Jun 17, 8:34 PM EDT	Beach Hazards Statement	GRR	Allegan, Mason, Muskegon, Oceana, Ottawa, Van Buren	51 hr
Jun 18, 5:53 AM EDT	Special Marine Warning	GRR		112 min
Jun 18, 7:33 AM EDT	Special Weather Statement	GRR	Mason, Oceana	87 min
Jun 18, 7:43 AM EDT	Special Marine Warning	GRR		2 hr
Jun 18, 8:23 AM EDT	Areal Flood Advisory	GRR	Muskegon, Oceana	4 hr
Jun 18, 8:35 AM EDT	Special Weather Statement	GRR	Mecosta, Newaygo	55 min
Jun 18, 8:58 AM EDT	Special Weather Statement	GRR	Kent, Montcalm, Ottawa	62 min
Jun 18, 9:53 AM EDT	Severe Thunderstorm Warning	GRR	Gratiot, Montcalm	44 min
Jun 18, 9:58 AM EDT	Special Weather Statement	GRR	Barry, Clinton, Eaton, Ionia	92 min
Jun 18, 11:04 AM EDT	Special Weather Statement	GRR	Lake	86 min
Jun 18, 11:19 AM EDT	Special Weather Statement	GRR	Calhoun, Ingham, Jackson	86 min
Jun 18, 11:39 AM EDT	Special Weather Statement	GRR	Clare, Osceola	96 min
Jun 18, 12:46 PM EDT	Special Weather Statement	GRR	Isabella	89 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.