Alert archive / Michigan / Special Weather Statements in 2011

Special Weather Statement, NWS Grand Rapids, MI

May 10, 2011Clinton County, Ionia County, Michigan

NWS Grand Rapids, MI issued this special weather statement at May 10, 2011, 2:57 AM EDT for Clinton County, Ionia County, Michigan. It was in force for 2 hr. 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 10, 2011, 2:57 AM EDT (06:57 UTC)
Expired
May 10, 2011, 5:00 AM EDT
In force
2 hr
Issued by
NWS Grand Rapids, MI

Counties Clinton County, MI, Ionia County, MI

The radar

The Detroit radar (KDTX), 78 km from the middle of the area, began a volume at 06:59 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, 7.0 hours before the alert went out and 81 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-pSkew-T log-p diagram, Detroit, MI at 00:00Z on 2011-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 00:00Z on 2011-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2047 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
155 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 May 9, 11:55 PM EDT, 3 hours 2 minutes earlier.

Area forecast discussion, May 9, 11:55 PM EDT, 3 hours 2 minutes before
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Hazardous weather outlook, May 9, 2:48 PM EDT, 12 hours 9 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
248 PM EDT MON MAY 9 2011

MIZ037>040-043>046-050>052-056>059-064>067-071>074-101500-
MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-
MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-
INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON-
248 PM EDT MON MAY 9 2011

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

.DAY ONE...THIS AFTERNOON TONIGHT

LOW HUMIDITY AND GUSTY WINDS WILL LEAD TO AN ELEVATED FIRE DANGER
THIS AFTERNOON AND EVENING.

THUNDERSTORMS ARE POSSIBLE AFTER 5 PM. SOME OF THE THUNDERSTORMS MAY
PRODUCE HAIL UP TO A HALF INCH IN DIAMETER. THE STORMS WILL MOVE
EAST AT 25 MPH.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

A FEW THUNDERSTORMS ARE POSSIBLE EACH DAY TUESDAY THROUGH FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

LMZ844>849-101500-
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-
248 PM EDT MON MAY 9 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

THUNDERSTORMS ARE POSSIBLE AFTER 5 PM. SOME OF THE THUNDERSTORMS MAY
PRODUCE HAIL UP TO A HALF INCH IN DIAMETER. THE STORMS WILL MOVE
EAST AT 25 MPH.

WIND SPEEDS TO 30 KNOTS OUT OF THE SOUTHEAST WILL BE HAZARDOUS TO
SMALL CRAFT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

WIND SPEEDS TO 30 KNOTS OUT OF THE SOUTHEAST WILL BE HAZARDOUS TO
SMALL CRAFT TUESDAY AND TUESDAY NIGHT.

A FEW THUNDERSTORMS ARE POSSIBLE EACH DAY TUESDAY THROUGH FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

MEADE 93

In the hours before

Local storm report, May 10, 12:02 AM EDT, 2 hours 55 minutes before
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Special weather statement, May 10, 12:47 AM EDT, 2 hours 10 minutes before
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Special weather statement, May 10, 1:23 AM EDT, 1 hour 34 minutes before
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Local storm report, May 10, 1:35 AM EDT, 1 hour 22 minutes before
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Special weather statement, May 10, 2:40 AM EDT, 17 minutes before
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Special weather statement, May 10, 2:57 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.

IssuedProductOfficeCountiesLasted
May 9, 8:21 PM EDTSpecial Weather StatementGRRClinton, Ingham54 min
May 10, 12:47 AM EDTSpecial Weather StatementGRRIngham58 min
May 10, 1:23 AM EDTSpecial Weather StatementGRRMecosta, Newaygo82 min
May 10, 2:40 AM EDTSpecial Weather StatementGRRGratiot, Isabella, Montcalm2 hr
May 10, 6:13 AM EDTSpecial Weather StatementGRRJackson77 min
May 10, 6:20 AM EDTSevere Thunderstorm WarningGRRJackson73 min
May 10, 7:56 AM EDTSpecial Weather StatementGRRIngham64 min

Nearby

Special Weather Statements in Michigan, 2011Every special weather statement in 2011

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.