Alert archive / Michigan / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 37, NWS Grand Rapids, MI

June 25, 2013Kent County, Ottawa County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Jun 25, 2013, 11:55 AM EDT for Kent County, Ottawa County, Michigan. It was in force for 50 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 25, 2013, 11:55 AM EDT (15:55 UTC)
Expired
Jun 25, 2013, 12:45 PM EDT
In force
50 min
Issued by
NWS Grand Rapids, MI
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Kent County, MI, Ottawa County, MI

The radar

The Grand Rapids radar (KGRR), 29 km from the middle of the area, began a volume at 15:55 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, 3.9 hours before the alert went out and 201 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 12:00Z on 2013-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 269 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2013-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 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
269 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
924 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 25, 7:13 AM EDT, 4 hours 42 minutes earlier.

Area forecast discussion, Jun 25, 7:13 AM EDT, 4 hours 42 minutes before
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Hazardous weather outlook, Jun 25, 3:32 AM EDT, 8 hours 23 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
332 AM EDT TUE JUN 25 2013

MIZ037>040-043>046-050>052-056>059-064>067-071>074-260745-
MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-
MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-
INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON-
332 AM EDT TUE JUN 25 2013

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

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS WITH DANGEROUS LIGHTNING...GUSTY WINDS AND
OCCASIONALLY HEAVY RAINFALL WILL MOVE THROUGH LOWER MICHIGAN THIS
MORNING.

ADDITIONAL THUNDERSTORMS MAY REDEVELOP THIS AFTERNOON AND CONTINUE
INTO THIS EVENING. SOME OF THESE THUNDERSTORMS MAY BE SEVERE WITH
DAMAGING WINDS AND LARGE HAIL.

LOCALLY HEAVY RAIN IS POSSIBLE TODAY AND TONIGHT...WITH SOME MINOR
FLOODING POSSIBLE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH SUNDAY

THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS WEDNESDAY...WITH
DAMAGING WINDS AND HEAVY RAIN POSSIBLE.

ADDITIONAL THUNDERSTORMS WILL BE POSSIBLE AT TIMES THURSDAY
THROUGH SUNDAY...THOUGH NO SEVERE WEATHER IS EXPECTED AT THIS
TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT ANY INSTANCES OF DAMAGING
WINDS...HAIL OR FLOODING TO THE NATIONAL WEATHER SERVICE.

LMZ844>849-260745-
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-
332 AM EDT TUE JUN 25 2013

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

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS WILL POSE HAZARDS TO BOATERS AND SWIMMERS TODAY AND
TONIGHT. SOME STORMS MAY BE SEVERE WITH DAMAGING WINDS AND LARGE
HAIL...ESPECIALLY THIS AFTERNOON AND EVENING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS WEDNESDAY...WITH
DAMAGING WINDS AND HEAVY RAIN POSSIBLE.

ADDITIONAL THUNDERSTORMS WILL BE POSSIBLE AT TIMES THURSDAY
THROUGH SUNDAY...THOUGH NO SEVERE WEATHER IS EXPECTED AT THIS
TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT ANY INSTANCES OF DAMAGING
WINDS...HAIL OR FLOODING TO THE NATIONAL WEATHER SERVICE.

In the hours before

Local storm report, Jun 25, 9:11 AM EDT, 2 hours 44 minutes before
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Local storm report, Jun 25, 9:39 AM EDT, 2 hours 16 minutes before
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Local storm report, Jun 25, 9:44 AM EDT, 2 hours 11 minutes before
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Local storm report, Jun 25, 9:53 AM EDT, 2 hours 2 minutes before
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Special weather statement, Jun 25, 11:27 AM EDT, 28 minutes before
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Local storm report, Jun 25, 11:50 AM EDT, 5 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 8:07 PM EDTSevere Thunderstorm WarningGRRVan Buren53 min
Jun 25, 4:46 AM EDTSpecial Marine WarningGRR59 min
Jun 25, 5:31 AM EDTAreal Flood AdvisoryGRRAllegan, Barry, Calhoun, Kalamazoo, Van Buren6 hr
Jun 25, 11:27 AM EDTSpecial Weather StatementGRROttawa63 min
Jun 25, 5:32 PM EDTSevere Thunderstorm WarningGRRVan Buren43 min
Jun 25, 5:53 PM EDTSpecial Weather StatementGRRKalamazoo52 min
Jun 25, 6:00 PM EDTSevere Thunderstorm WarningGRRKalamazoo60 min
Jun 25, 6:36 PM EDTSpecial Weather StatementGRRCalhoun54 min
Jun 25, 7:56 PM EDTSpecial Weather StatementGRRCalhoun, Jackson, Kalamazoo64 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2013Every 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.