Alert archive / Michigan / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 27, NWS Grand Rapids, MI

June 12, 2013Ottawa County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Jun 12, 2013, 9:46 PM EDT for Ottawa County, 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 counties it named.

The facts

Issued: Jun 12, 2013, 9:46 PM EDT (01:46 UTC)
Expired: Jun 12, 2013, 10:45 PM EDT
In force: 59 min
Issued by: NWS Grand Rapids, MI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Ottawa County, MI

The radar

The Grand Rapids radar (KGRR), 53 km from the middle of the area, began a volume at 01:48 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, 1.8 hours before the alert went out and 226 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: 33 J/kg
Mixed-layer CIN: -97 J/kg
Mixed-layer LCL: 1096 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 169 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jun 12, 7:29 PM EDT, 2 hours 17 minutes earlier.

Area forecast discussion, Jun 12, 7:29 PM EDT, 2 hours 17 minutes before

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Hazardous weather outlook, Jun 12, 2:45 PM EDT, 7 hours 1 minute before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
245 PM EDT WED JUN 12 2013

MIZ037>040-043>046-050>052-056>059-064>067-071>074-131015-
MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-
MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-
INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON-
245 PM EDT WED JUN 12 2013

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

.DAY ONE...LATE THIS AFTERNOON AND TONIGHT

STRONG TO SEVERE STORMS ARE LIKELY TO DEVELOP DURING THE MID TO LATE
EVENING HOURS MAINLY SOUTH OF INTERSTATE 96. THE STORMS TONIGHT WILL
BE CAPAPBLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 70 MPH... LARGE
HAIL TO AROUND ONE INCH... VERY HEAVY RAIN AND POSSIBLY A FEW
TORNADOES. HEAVY RAINS MAY LEAD TO FLASH FLOODING SOUTH OF
INTERSTATE 96 LATE THIS EVENING AND OVERNIGHT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THUNDERSTORMS ARE POSSIBLE LATE SATURDAY THROUGH MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS LIKELY TONIGHT.

LMZ844>849-131015-
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-
245 PM EDT WED JUN 12 2013

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

.DAY ONE...LATE THIS AFTERNOON AND TONIGHT

THUNDERSTORMS MAY SWEEP ACROSS SOUTHERN PORTIONS OF LAKE MICHIGAN
DURING THE MID TO LATE EVENING HOURS TONIGHT. STRONG DAMAGING WIND
GUSTS TO IN EXCESS OF 70 MPH ARE POSSIBLE. HAIL AND TORNADOES ARE
ALSO POSSIBLE ALONG WITH CLOUD TO WATER LIGHTNING STRIKES. THE TIME
FRAME OF POTENTIAL STORMS OVER THE LAKE IS 7 PM THROUGH 1 AM.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

STORMS ARE POSSIBLE SATURDAY THROUGH MONDAY.

NORTH WINDS WILL INCREASE LATE TONIGHT INTO THURSDAY LIKELY BUILDING
WAVES TO HEIGHTS THAT WILL BE A HAZARD TO SMALLER CRAFT FROM LATE
TONIGHT INTO THURSDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS LIKELY TONIGHT.

DUKE/LAURENS

In the hours before

Special weather statement, Jun 12, 4:23 PM EDT, 5 hours 23 minutes before

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Special weather statement, Jun 12, 8:03 PM EDT, 1 hour 43 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
803 PM EDT WED JUN 12 2013

MIZ037>040-043>046-050>052-056>059-064>067-071>074-122100-
ALLEGAN-BARRY-CALHOUN-CLARE-CLINTON-EATON-GRATIOT-INGHAM-IONIA-
ISABELLA-JACKSON-KALAMAZOO-KENT-LAKE-MASON-MECOSTA-MONTCALM-MUSKEGON-
NEWAYGO-OCEANA-OSCEOLA-OTTAWA-VAN BUREN-
803 PM EDT WED JUN 12 2013

...SIGNIFICANT WEATHER ADVISORY...

NUMEROUS THUNDERSTORMS ARE NOW MOVING ACROSS LAKE MICHIGAN AND ARE
BEGINNING TO MOVE ONSHORE AROUND LUDINGTON. THESE STORMS ARE CAPABLE
OF PRODUCING FREQUENT CLOUD TO GROUND LIGHTNING...WINDS GUSTS IN
EXCESS OF 45 MPH AND TORRENTIAL DOWNPOURS.

THE STRONGEST THUNDERSTORMS WILL REACH COASTAL AREAS BY 11 PM
EDT...U.S. 131 INCLUDING GRAND RAPIDS AND KALAMAZOO AROUND
MIDNIGHT AND U.S. 127 INCLUDING LANSING AND JACKSON BY AROUND 2 AM
EDT.

THE HIGHEST POTENTIAL FOR SEVERE WEATHER THIS EVENING INCLUDING WIND
GUSTS IN EXCESS OF 65 MPH AND LARGE HAIL CONTINUES TO BE ALONG AND
SOUTH OF THE I-94 COORIDOR INCLUDING SOUTH HAVEN...KALAMAZOO...
BATTLE CREEK...AND JACKSON. A SEVERE THUNDERSTORM WATCH REMAINS IN
EFFECT UNTIL 2 AM EDT FOR THESE AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

CONTINUE TO STAY ABREAST OF WEATHER CONDITIONS INTO THIS EVENING.
SEVERE STORMS COULD RAPIDLY MOVE INTO OUR AREA.  DEVELOPING A PLAN
OF ACTION NOW IS ADVISABLE FOR ALL TO STAY SAFE FROM THESE POTENTIAL
HAZARDOUS STORMS.

&&

LAT...LON 4382 8644 4406 8653 4418 8640 4416 8460
      4347 8460 4347 8436 4278 8436 4277 8415
      4207 8414 4207 8623 4224 8623 4225 8637
      4259 8623 4299 8623 4362 8655
TIME...MOT...LOC 2005Z 269DEG 30KT 4412 8648 4193 8636

DKC

Special weather statement, Jun 12, 8:04 PM EDT, 1 hour 42 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
804 PM EDT WED JUN 12 2013

MIZ037>040-043>046-050>052-056>059-064>067-071>074-122100-
ALLEGAN-BARRY-CALHOUN-CLARE-CLINTON-EATON-GRATIOT-INGHAM-IONIA-
ISABELLA-JACKSON-KALAMAZOO-KENT-LAKE-MASON-MECOSTA-MONTCALM-MUSKEGON-
NEWAYGO-OCEANA-OSCEOLA-OTTAWA-VAN BUREN-
804 PM EDT WED JUN 12 2013

...SIGNIFICANT WEATHER ADVISORY...

NUMEROUS THUNDERSTORMS ARE NOW MOVING ACROSS LAKE MICHIGAN AND ARE
BEGINNING TO MOVE ONSHORE AROUND LUDINGTON. THESE STORMS ARE CAPABLE
OF PRODUCING FREQUENT CLOUD TO GROUND LIGHTNING...WINDS GUSTS IN
EXCESS OF 45 MPH AND TORRENTIAL DOWNPOURS.

THE STRONGEST THUNDERSTORMS WILL REACH COASTAL AREAS BY 11 PM
EDT...U.S. 131 INCLUDING GRAND RAPIDS AND KALAMAZOO AROUND
MIDNIGHT AND U.S. 127 INCLUDING LANSING AND JACKSON BY AROUND 2 AM
EDT.

THE HIGHEST POTENTIAL FOR SEVERE WEATHER THIS EVENING INCLUDING WIND
GUSTS IN EXCESS OF 65 MPH AND LARGE HAIL CONTINUES TO BE ALONG AND
SOUTH OF THE I-94 COORIDOR INCLUDING SOUTH HAVEN...KALAMAZOO...
BATTLE CREEK...AND JACKSON. A SEVERE THUNDERSTORM WATCH REMAINS IN
EFFECT UNTIL 2 AM EDT FOR THESE AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

CONTINUE TO STAY ABREAST OF WEATHER CONDITIONS INTO THIS EVENING.
SEVERE STORMS COULD RAPIDLY MOVE INTO OUR AREA.  DEVELOPING A PLAN
OF ACTION NOW IS ADVISABLE FOR ALL TO STAY SAFE FROM THESE POTENTIAL
HAZARDOUS STORMS.

&&

LAT...LON 4382 8644 4406 8653 4418 8640 4416 8460
      4347 8460 4347 8436 4278 8436 4277 8415
      4207 8414 4207 8623 4224 8623 4225 8637
      4259 8623 4299 8623 4362 8655
TIME...MOT...LOC 2005Z 269DEG 30KT 4412 8648 4193 8636

DKC

Special weather statement, Jun 12, 8:06 PM EDT, 1 hour 40 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
806 PM EDT WED JUN 12 2013

MIZ037>040-043>046-050>052-056>059-064>067-071>074-130200-
ALLEGAN-BARRY-CALHOUN-CLARE-CLINTON-EATON-GRATIOT-INGHAM-IONIA-
ISABELLA-JACKSON-KALAMAZOO-KENT-LAKE-MASON-MECOSTA-MONTCALM-MUSKEGON-
NEWAYGO-OCEANA-OSCEOLA-OTTAWA-VAN BUREN-
806 PM EDT WED JUN 12 2013

...SIGNIFICANT WEATHER ADVISORY...

NUMEROUS THUNDERSTORMS ARE NOW MOVING ACROSS LAKE MICHIGAN AND ARE
BEGINNING TO MOVE ONSHORE AROUND LUDINGTON. THESE STORMS ARE CAPABLE
OF PRODUCING FREQUENT CLOUD TO GROUND LIGHTNING...WINDS GUSTS IN
EXCESS OF 45 MPH AND TORRENTIAL DOWNPOURS.

THE STRONGEST THUNDERSTORMS WILL REACH COASTAL AREAS BY 11 PM
EDT...U.S. 131 INCLUDING GRAND RAPIDS AND KALAMAZOO AROUND
MIDNIGHT AND U.S. 127 INCLUDING LANSING AND JACKSON BY AROUND 2 AM
EDT.

THE HIGHEST POTENTIAL FOR SEVERE WEATHER THIS EVENING INCLUDING WIND
GUSTS IN EXCESS OF 65 MPH AND LARGE HAIL CONTINUES TO BE ALONG AND
SOUTH OF THE I-94 COORIDOR INCLUDING SOUTH HAVEN...KALAMAZOO...
BATTLE CREEK...AND JACKSON. A SEVERE THUNDERSTORM WATCH REMAINS IN
EFFECT UNTIL 2 AM EDT FOR THESE AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

CONTINUE TO STAY ABREAST OF WEATHER CONDITIONS INTO THIS EVENING.
SEVERE STORMS COULD RAPIDLY MOVE INTO OUR AREA.  DEVELOPING A PLAN
OF ACTION NOW IS ADVISABLE FOR ALL TO STAY SAFE FROM THESE POTENTIAL
HAZARDOUS STORMS.

&&

LAT...LON 4382 8644 4406 8653 4418 8640 4416 8460
      4347 8460 4347 8436 4278 8436 4277 8415
      4207 8414 4207 8623 4224 8623 4225 8637
      4259 8623 4299 8623 4362 8655
TIME...MOT...LOC 2005Z 269DEG 30KT 4412 8648 4193 8636

DKC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 8:03 PM EDT	Special Weather Statement	GRR	Allegan, Barry, Calhoun, Clare, Clinton, Eaton and 17 more
Jun 12, 8:04 PM EDT	Special Weather Statement	GRR	Allegan, Barry, Calhoun, Clare, Clinton, Eaton and 17 more
Jun 12, 8:06 PM EDT	Special Weather Statement	GRR	Allegan, Barry, Calhoun, Clare, Clinton, Eaton and 17 more	114 min
Jun 12, 8:14 PM EDT	Special Marine Warning	GRR		91 min
Jun 12, 8:33 PM EDT	Special Marine Warning	GRR		117 min
Jun 12, 9:37 PM EDT	Beach Hazards Statement	GRR	Allegan, Mason, Muskegon, Oceana, Ottawa, Van Buren	30 hr
Jun 12, 10:41 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Barry	64 min
Jun 12, 10:45 PM EDT	Severe Thunderstorm Warning	GRR	Ingham	60 min
Jun 12, 10:51 PM EDT	Severe Thunderstorm Warning	GRR	Kalamazoo, Van Buren	54 min
Jun 12, 10:55 PM EDT	Flash Flood Warning	GRR	Allegan, Barry, Clinton, Eaton, Ingham, Ionia and 2 more	6 hr
Jun 12, 10:58 PM EDT	Tornado Warning	GRR	Allegan, Barry	32 min
Jun 12, 11:32 PM EDT	Severe Thunderstorm Warning	GRR	Barry, Calhoun, Eaton	58 min
Jun 13, 4:07 AM EDT	Flash Flood Warning	GRR	Eaton, Ingham	6 hr
Jun 13, 4:43 AM EDT	River Flood Advisory	GRR	Clinton	54 hr
Jun 13, 8:42 AM EDT	River Flood Advisory	GRR	Ingham	8 hr
Jun 13, 8:42 AM EDT	River Flood Advisory	GRR	Ingham	4 days
Jun 13, 9:56 AM EDT	Areal Flood Advisory	GRR	Eaton, Ingham	6 hr
Jun 13, 10:42 AM EDT	River Flood Advisory	GRR	Ionia	6 days
Jun 13, 10:42 AM EDT	River Flood Advisory	GRR	Kent	3 days
Jun 13, 10:42 AM EDT	River Flood Advisory	GRR	Kent	24 hr
Jun 13, 10:42 AM EDT	River Flood Advisory	GRR	Clinton	24 hr
Jun 13, 10:42 AM EDT	River Flood Advisory	GRR	Barry	7 days
Jun 13, 7:21 PM EDT	River Flood Advisory	GRR	Ionia	9 hr

Nearby

Severe Thunderstorm Warnings in Michigan, 2013 Every severe thunderstorm warning in 2013

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.