Alert archive / Michigan / Special Weather Statements in 2008

Special Weather Statement, NWS Grand Rapids, MI

August 7, 20085 counties in Michigan

NWS Grand Rapids, MI issued this special weather statement at Aug 7, 2008, 4:28 PM EDT for 5 counties in Michigan. It was in force for 62 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 7, 2008, 4:28 PM EDT (20:28 UTC)
Expired: Aug 7, 2008, 5:30 PM EDT
In force: 62 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), 81 km from the middle of the area, began a volume at 20:31 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, 8.5 hours before the alert went out and 104 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: 23 J/kg
Mixed-layer CIN: -90 J/kg
Mixed-layer LCL: 914 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: -36 m²/s²
0-3 km storm-relative helicity: 4 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 7, 4:00 PM EDT, 28 minutes earlier.

Area forecast discussion, Aug 7, 4:00 PM EDT, 28 minutes before

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Hazardous weather outlook, Aug 7, 11:50 AM EDT, 4 hours 38 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1150 AM EDT THU AUG 7 2008

MIZ037>040-043>046-050>052-056>059-064>067-071>074-080915-
MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-
MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-
INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON-
1150 AM EDT THU AUG 7 2008

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED THUNDERSTORMS ARE POSSIBLE EARLY THIS AFTERNOON NEAR AND
SOUTH OF GRAND HAVEN AND SEVERAL WATERSPOUTS HAVE BEEN REPORTED IN
ASSOCIATION WITH THIS ACTIVITY.

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP EAST OF ROUTE 131
BY EARLY AFTERNOON AND CONTINUE INTO THE EARLY EVENING. WHILE NONE
OF THESE STORMS ARE EXPECTED TO BE SEVERE... GUSTY WINDS...SMALL
HAIL AND BRIEF DOWNPOURS WILL ACCOMPANY THE STRONGER STORMS.STORMS
WILL MOVE SOUTHEAST AROUND 35 MPH.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A FEW NON SEVERE THUNDERSTORMS ARE EXPECTED TO REDEVELOP LATER
FRIDAY AFTERNOON AND CONTINUE INTO SATURDAY. FOR THE MOST PART
THEY WILL BE EAST OF ROUTE 131.

THE RETURN OF WARMER AND MORE HUMID AIR WILL TOUCH OFF ADDITIONAL
THUNDERSTORMS MONDAY NIGHT THROUGH WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED.

LMZ844>849-080915-
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-
1150 AM EDT THU AUG 7 2008

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

WATERSPOUTS ARE POSSIBLE THIS AFTERNOON PRIMARILY NEAR AND SOUTH OF
GRAND HAVEN. WAVES WILL BUILD TO 3 TO 5 FEET NORTH OF GRAND HAVEN BY
EVENING. WAVES OF THAT HEIGHT ARE HAZARDOUS TO SMALL WATER CRAFT AND
ALSO CAUSE RIP CURRENTS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

WINDS AND WAVES COULD WILL BE HAZARDOUS TO SMALL CRAFT FRIDAY.
RIP CURRENTS ARE ALSO POSSIBLE.

SCATTERED THUNDERSTORMS WILL RETURN MONDAY NIGHT THROUGH
WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED.

LAURENS

In the hours before

Special weather statement, Aug 7, 12:37 PM EDT, 3 hours 51 minutes before

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1237 PM EDT THU AUG 7 2008

MIZ056-064-071-071730-
ALLEGAN-OTTAWA-VAN BUREN-
1237 PM EDT THU AUG 7 2008

...SPECIAL WEATHER STATEMENT...

AT 1235 PM EDT...ALONG A LINE EXTENDING FROM 18 MILES NORTH OF
SAUGATUCK TO 13 MILES NORTHWEST OF SAUGATUCK TO 8 MILES WEST OF
SAUGATUCK TO SOUTH HAVEN...MOVING SOUTHEAST AT 19 MPH.

WATERSPOUTS OVER LAKE MICHIGAN ARE BEGINNING TO MOVE TOWARD THE
LAKESHORE. THESE WATERSPOUTS WILL DISSIPATE AS THEY MOVE OVER LAND.
THESE WATERSPOUTS COULD PRODUCE SOME GUSTY WINDS AS THE MOVE
ONSHORE...HOWEVER WIND DAMAGE IS NOT EXPECTED BEFORE THEY DISSIPATE.

  PORT SHELDON...       SOUTH HAVEN...        COVERT...
  MACATAWA...           CASTLE PARK...        SAUGATUCK...
  DOUGLAS...            GLENN...              GANGES...

LAT...LON 4248 8626 4265 8624 4270 8622 4292 8623
      4292 8614 4258 8615 4224 8622 4225 8638
TIME...MOT...LOC 1634Z 336DEG 17KT 4290 8624 4280 8634
          4263 8635 4240 8628

NJJ

Special weather statement, Aug 7, 12:46 PM EDT, 3 hours 42 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1246 PM EDT THU AUG 7 2008

MIZ051-052-056>059-064>067-071>074-071800-
ALLEGAN-BARRY-CALHOUN-CLINTON-EATON-GRATIOT-INGHAM-IONIA-JACKSON-
KALAMAZOO-KENT-MONTCALM-OTTAWA-VAN BUREN-
1246 PM EDT THU AUG 7 2008

...SPECIAL WEATHER STATEMENT...

AT 1242 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
WIDELY SCATTERED STRONG THUNDERSTORMS DEVELOPING ACROSS THE AREA
SOUTH OF FROM GRAND HAVEN TO ALMA...MOVING SOUTH SOUTHEAST AT 18 MPH.

* LOCATIONS IN THE PATH OF THESE STORMS INCLUDE...

  ZEELAND...            WYOMING...            WESTWOOD...
  WAYLAND...            WALKER...             VICKSBURG...
  SPARTA...             SCHOOLCRAFT...        ROCKFORD...
  RICHLAND...           PORTAGE...            PLAINWELL...
  PAW PAW...            OTSEGO...             MIDDLEVILLE...
  MATTAWAN...           MARTIN...             LAWTON...

ADDITIONAL STORMS ARE EXPECTED TO POP THROUGH THE MID AFTERNOON
HOURS.

THESE STORMS ARE CAPABLE OF PRODUCING ONE HALF INCH DIAMETER HAIL...
WINDS GREATER THAN 40 MPH...OCCASIONAL CLOUD TO GROUND LIGHTNING...
AND BRIEF DOWNPOURS. 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 THESE STORMS HAVE
PASSED.

LAT...LON 4306 8610 4348 8460 4347 8443 4335 8436
      4278 8436 4278 8415 4208 8413 4207 8609
TIME...MOT...LOC 1645Z 340DEG 15KT 4296 8542 4246 8543

NJJ

Special weather statement, Aug 7, 1:21 PM EDT, 3 hours 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
121 PM EDT THU AUG 7 2008

MIZ064-071-071815-
ALLEGAN-VAN BUREN-
121 PM EDT THU AUG 7 2008

...SPECIAL WEATHER STATEMENT...

AT 118 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SHOWERS AND THUNDERSTORMS PRODUCING WATERSPOUTS ALONG A LINE
EXTENDING FROM 8 MILES SOUTHWEST OF SAUGATUCK TO SOUTH
HAVEN...MOVING SOUTH SOUTHEAST AT 20 MPH.

* LOCATIONS IN THE PATH OF THESE STORMS INCLUDE...

  SOUTH HAVEN...        SAUGATUCK...          GLENN...
  GANGES...             DOUGLAS...            COVERT...

POSSIBLE WATERSPOUTS OVER LAKE MICHIGAN ARE BEGINNING TO MOVE TOWARD
THE LAKESHORE. THESE WATERSPOUTS WILL DISSIPATE AS THEY MOVE OVER
LAND. THESE WATERSPOUTS COULD PRODUCE SOME GUSTY WINDS AS THE MOVE
ONSHORE...HOWEVER WIND DAMAGE IS NOT EXPECTED BEFORE THEY DISSIPATE.

STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK SHELTER IN
A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED.

LAT...LON 4228 8636 4234 8632 4240 8630 4248 8626
      4257 8624 4262 8625 4266 8624 4267 8623
      4267 8613 4224 8623 4225 8637 4226 8638
TIME...MOT...LOC 1721Z 355DEG 18KT 4256 8634 4239 8627

NJJ

Special weather statement, Aug 7, 1:57 PM EDT, 2 hours 31 minutes before

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Special weather statement, Aug 7, 2:06 PM EDT, 2 hours 22 minutes before

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Special weather statement, Aug 7, 4:28 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
Aug 6, 8:41 PM EDT	Special Weather Statement	GRR	Allegan, Barry, Clinton, Ionia, Kent, Montcalm and 1 more	64 min
Aug 6, 9:26 PM EDT	Special Weather Statement	GRR	Allegan, Barry, Calhoun, Clinton, Eaton, Gratiot and 5 more	94 min
Aug 7, 11:46 AM EDT	Special Marine Warning	GRR		89 min
Aug 7, 12:02 PM EDT	Special Weather Statement	GRR	Allegan, Ottawa, Van Buren	88 min
Aug 7, 12:37 PM EDT	Special Weather Statement	GRR	Allegan, Van Buren	53 min
Aug 7, 12:46 PM EDT	Special Weather Statement	GRR	Barry, Calhoun, Clinton, Eaton, Gratiot, Ingham and 5 more	74 min
Aug 7, 1:17 PM EDT	Special Marine Warning	GRR		58 min
Aug 7, 1:21 PM EDT	Special Weather Statement	GRR	Allegan, Van Buren	54 min
Aug 7, 1:57 PM EDT	Special Weather Statement	GRR	Calhoun, Eaton, Ingham, Jackson, Kalamazoo	93 min
Aug 7, 2:06 PM EDT	Special Weather Statement	GRR	Clare, Clinton, Gratiot, Ionia, Isabella, Kent and 9 more	114 min
Aug 7, 2:18 PM EDT	Small Craft Advisory	GRR		22 hr
Aug 7, 5:25 PM EDT	Special Weather Statement	GRR	Calhoun, Clinton, Eaton, Ingham, Ionia, Jackson	65 min
Aug 7, 6:24 PM EDT	Special Weather Statement	GRR	Calhoun, Clare, Clinton, Eaton, Gratiot, Ingham and 6 more	66 min

Nearby

Special Weather Statements in Michigan, 2008 Every special weather statement in 2008

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.