Alert archive / Michigan / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 53, NWS Grand Rapids, MI

August 14, 2019Kalamazoo County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Aug 14, 2019, 4:44 PM EDT for Kalamazoo County, Michigan. It was in force for 11 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: Aug 14, 2019, 4:44 PM EDT (20:44 UTC)
Expired: Aug 14, 2019, 4:55 PM EDT
In force: 11 min
Issued by: NWS Grand Rapids, MI
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

County Kalamazoo County, MI

The radar

The Grand Rapids radar (KGRR), 72 km from the middle of the area, began a volume at 20:47 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, 8.7 hours before the alert went out and 180 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1743 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: -36 m²/s²
0-3 km storm-relative helicity: 33 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 Aug 14, 3:29 PM EDT, 1 hour 15 minutes earlier.

Area forecast discussion, Aug 14, 3:29 PM EDT, 1 hour 15 minutes before

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Hazardous weather outlook, Aug 14, 4:20 PM EDT, 24 minutes before

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In the hours before

Special weather statement, Aug 14, 3:30 PM EDT, 1 hour 14 minutes before

Special Weather Statement
National Weather Service Grand Rapids MI
330 PM EDT Wed Aug 14 2019

MIZ056>059-064>067-071>074-142130-
Kalamazoo-Clinton-Ingham-Ionia-Calhoun-Eaton-Allegan-Ottawa-Barry-Van
Buren-Jackson-Kent-
330 PM EDT Wed Aug 14 2019

...SCATTERED THUNDERSTORMS POSSIBLE THIS AFTERNOON...

Scattered thunderstorms will continue developing across southern Lower
Michigan this afternoon and evening.  While severe weather is currently
not expected, the strongest storms may produce small hail to dime size,
gusty winds to 35 mph, brief downpours, and dangerous cloud to ground
lightning. Move indoors if you hear thunder!

These scattered thunderstorms may impact...
Lansing...             Kalamazoo...           Portage...
Jackson...             Holland...             Charlotte...
Albion...              Mason...               Hastings...
Marshall...            Eaton Rapids...        Allegan...
South Haven...         Plainwell...           Paw Paw...
Waverly...             Van Buren SP...        Westwood...
Vandercook Lake...     Haslett...

LAT...LON 4207 8622 4224 8622 4224 8637 4246 8625
      4277 8621 4278 8416 4207 8414
TIME...MOT...LOC 1929Z 238DEG 49KT 4231 8564

BORCHARDT

Local storm report, Aug 14, 4:17 PM EDT, 27 minutes before

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Local storm report, Aug 14, 4:19 PM EDT, 25 minutes before

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Local storm report, Aug 14, 4:39 PM EDT, 5 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 14, 3:30 PM EDT	Special Weather Statement	GRR	Allegan, Barry, Calhoun, Eaton, Ingham, Jackson and 2 more	2 hr
Aug 14, 4:07 PM EDT	Severe Thunderstorm Warning	GRR	Kalamazoo	38 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2019 Every severe thunderstorm warning in 2019

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.