Alert archive / Michigan / Special Weather Statements in 2014

Special Weather Statement, NWS Grand Rapids, MI

August 4, 20145 counties in Michigan

NWS Grand Rapids, MI issued this special weather statement at Aug 4, 2014, 2:18 PM EDT for 5 counties in Michigan. It was in force for 57 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: Aug 4, 2014, 2:18 PM EDT (18:18 UTC)
Expired: Aug 4, 2014, 3:15 PM EDT
In force: 57 min
Issued by: NWS Grand Rapids, MI

Counties Barry County, MI, Calhoun County, MI, Eaton County, MI, Ingham County, MI, Jackson County, MI

The radar

The Grand Rapids radar (KGRR), 68 km from the middle of the area, began a volume at 18:21 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, 6.3 hours before the alert went out and 134 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: 173 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 1193 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 32 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 Aug 4, 2:02 PM EDT, 16 minutes earlier.

Area forecast discussion, Aug 4, 2:02 PM EDT, 16 minutes before

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Hazardous weather outlook, Aug 4, 4:35 AM EDT, 9 hours 43 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
435 AM EDT MON AUG 4 2014

MIZ037>040-043>046-050>052-056>059-064>067-071>074-050845-
MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-
MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-
INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON-
435 AM EDT MON AUG 4 2014

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED TODAY INTO TONIGHT. THE
STORMS ARE NOT EXPECTED TO BE SEVERE BUT SMALL HAIL...GUSTY
WINDS...FREQUENT CLOUD TO GROUND LIGHTING AND LOCALLY HEAVY
RAINFALL ARE POSSIBLE FROM THE STRONGER STORMS.

FROM MID MORNING INTO EARLY THIS EVENING THE THREAT FOR
THUNDERSTORMS WILL MOSTLY BE INLAND OF US-131. TONIGHT THE THREAT
WILL BE ACROSS THE AREA.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THE THREAT FOR SCATTERED THUNDERSTORMS CONTINUES THROUGH MOST OF
THE DAYLIGHT HOURS OF TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED THROUGH THE WEEK.

LMZ844>849-050845-
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-
435 AM EDT MON AUG 4 2014

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED TODAY AND TONIGHT. GUSTY
WINDS... SMALL HAIL AND CLOUD TO WATER LIGHTNING ARE THE EXPECTED
HAZARDS FROM THESE STORMS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THE THREAT FOR THUNDERSTORMS CONTINUES INTO THE MID AFTERNOON
TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED THROUGH THE WEEK.

WDM

In the hours before

Special weather statement, Aug 4, 2:18 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
218 PM EDT MON AUG 4 2014

MIZ065>067-073-074-041915-
BARRY-CALHOUN-EATON-INGHAM-JACKSON-
218 PM EDT MON AUG 4 2014

...SIGNIFICANT WEATHER ADVISORY...

AT 213 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SCATTERED STRONG STORMS ACROSS THE AREA...MOVING EAST-SOUTHEAST AT
15 MPH.

ONE HALF INCH DIAMETER HAIL...WIND GUSTS UP TO 40 MPH...OCCASIONAL
CLOUD TO GROUND LIGHTNING...BRIEF MODERATE DOWNPOURS...ARE
POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  CHARLOTTE...          LANSING...            GRAND LEDGE...
  MARSHALL...           TEKONSHA...           EATON RAPIDS...
  SPRINGPORT...         ALBION...             CONVIS TWP...
  CERESCO...            OLIVET...             POTTERVILLE...
  BURLINGTON...         WAVERLY...            LEE TWP...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK
SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED.

&&

LAT...LON 4242 8530 4242 8546 4277 8549 4278 8416
      4207 8413 4207 8529
TIME...MOT...LOC 1815Z 295DEG 17KT 4246 8499

WEBB

The office that day

Everything else NWS Grand Rapids, MI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 4, 5:45 AM EDT	Special Weather Statement	GRR	Kalamazoo	45 min
Aug 4, 3:11 PM EDT	Special Weather Statement	GRR	Barry, Calhoun, Clinton, Eaton, Ingham, Ionia and 2 more	64 min
Aug 4, 4:16 PM EDT	Special Weather Statement	GRR	Clinton, Eaton, Ingham, Ionia	59 min
Aug 4, 4:47 PM EDT	Special Weather Statement	GRR	Ionia	58 min
Aug 4, 5:04 PM EDT	Areal Flood Advisory	GRR	Ionia, Kent	6 hr
Aug 4, 5:45 PM EDT	Special Weather Statement	GRR	Ionia	60 min

Nearby

Special Weather Statements in Michigan, 2014 Every special weather statement in 2014

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.