Alert archive / Michigan / Special Weather Statements in 2012

Special Weather Statement, NWS Grand Rapids, MI

October 14, 201214 counties in Michigan

NWS Grand Rapids, MI issued this special weather statement at Oct 14, 2012, 6:16 PM EDT for 14 counties in Michigan. It was in force for 59 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: Oct 14, 2012, 6:16 PM EDT (22:16 UTC)
Expired: Oct 14, 2012, 7:15 PM EDT
In force: 59 min
Issued by: NWS Grand Rapids, MI

Counties Barry County, MI, Calhoun County, MI, Clinton County, MI, Eaton County, MI, Gratiot County, MI, Ingham County, MI, Ionia County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Mecosta County, MI, Montcalm County, MI, Newaygo County, MI

The radar

The Grand Rapids radar (KGRR), 68 km from the middle of the area, began a volume at 22:20 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, 10.3 hours before the alert went out and 107 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: 50 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 555 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 255 m²/s²
0-3 km storm-relative helicity: 311 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 Oct 14, 4:52 PM EDT, 1 hour 24 minutes earlier.

Area forecast discussion, Oct 14, 4:52 PM EDT, 1 hour 24 minutes before

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Hazardous weather outlook, Oct 14, 12:12 PM EDT, 6 hours 4 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1212 PM EDT SUN OCT 14 2012

MIZ037>040-043>046-050>052-056>059-064>067-071>074-151030-
MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-
MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-
INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON-
1212 PM EDT SUN OCT 14 2012

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

.DAY ONE...TODAY AND TONIGHT

STRONG TO SEVERE THUNDERSTORMS WITH DAMAGING WINDS ARE POSSIBLE THIS
AFTERNOON AND EVENING. THE THREAT IS MAINLY SOUTH OF A LINE FROM
MUSKEGON TO ALMA AND FROM 4 PM TO 10 PM. STORM MOVEMENT WILL BE TO
THE EAST NORTHEAST AT 40 TO 60 MPH.

VERY WINDY CONDITIONS ARE EXPECTED AREAWIDE FOR A TIME TONIGHT WITH
WEST WIND GUSTS OF 40 TO 45 MPH. THIS COULD LEAD TO A FEW DOWNED
TREE LIMBS AND SCATTERED POWER OUTAGES.

DESPITE TOTAL RAINFALL OF ONE TO TWO INCHES SO FAR AND UP TO AN
ADDITIONAL INCH POSSIBLE... NO FLOODING HAS BEEN REPORTED OR IS
EXPECTED.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED BETWEEN 4 PM AND 10 PM SOUTH OF A
MUSKEGON TO ALMA LINE.

LMZ844>849-151030-
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-
1212 PM EDT SUN OCT 14 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 TODAY AND
NORTHWEST GALES TO 40 KNOTS ARE EXPECTED TONIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

WINDS AND WAVES WILL BE HAZARDOUS TO SMALL CRAFT MUCH OF NEXT
WEEK.

MEADE

In the hours before

Local storm report, Oct 14, 5:34 PM EDT, 42 minutes before

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Local storm report, Oct 14, 5:39 PM EDT, 37 minutes before

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Local storm report, Oct 14, 5:46 PM EDT, 30 minutes before

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Local storm report, Oct 14, 5:47 PM EDT, 29 minutes before

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Local storm report, Oct 14, 5:55 PM EDT, 21 minutes before

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Special weather statement, Oct 14, 6:16 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
Oct 14, 4:16 AM EDT	Gale Warning	GRR		24 hr
Oct 14, 3:13 PM EDT	Severe Thunderstorm Warning	GRR	Barry, Eaton, Ionia	24 min
Oct 14, 3:27 PM EDT	Severe Thunderstorm Warning	GRR	Gratiot, Isabella, Montcalm	48 min
Oct 14, 4:55 PM EDT	Special Weather Statement	GRR	Allegan, Ottawa, Van Buren	65 min
Oct 14, 5:18 PM EDT	Special Weather Statement	GRR	Allegan, Barry, Calhoun, Clinton, Eaton, Gratiot and 12 more	57 min
Oct 14, 5:23 PM EDT	Special Marine Warning	GRR		60 min
Oct 14, 7:12 PM EDT	Special Weather Statement	GRR	Gratiot	48 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.