Alert archive / Michigan / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 52, NWS Grand Rapids, MI

August 14, 2019Kalamazoo County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Aug 14, 2019, 4:07 PM EDT for Kalamazoo County, Michigan. It was in force for 38 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, 4:07 PM EDT (20:07 UTC)
Expired
Aug 14, 2019, 4:45 PM EDT
In force
38 min
Issued by
NWS Grand Rapids, MI
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 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 20:07 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, 8.1 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-pSkew-T log-p diagram, Detroit, MI at 12:00Z on 2019-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2019-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -36 square meters per square second.1939587897Sfc1 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
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, 38 minutes earlier.

Area forecast discussion, Aug 14, 3:29 PM EDT, 38 minutes before
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Hazardous weather outlook, Aug 14, 3:11 PM EDT, 56 minutes before
Hazardous Weather Outlook
National Weather Service Grand Rapids MI
311 PM EDT Wed Aug 14 2019

MIZ037>040-043>046-050>052-056>059-064>067-071>074-150730-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
311 PM EDT Wed Aug 14 2019

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...This Evening and Tonight

Scattered thunderstorms are possible south of a Holland to Lansing
line. Small hail could accompany the stronger storms.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Isolated thunderstorms are possible Friday through Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

LMZ844>849-150730-
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-
311 PM EDT Wed Aug 14 2019

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...This Evening and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Isolated thunderstorms are possible Friday through Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

In the hours before

Special weather statement, Aug 14, 3:30 PM EDT, 37 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

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 3:30 PM EDTSpecial Weather StatementGRRAllegan, Barry, Calhoun, Eaton, Ingham, Jackson and 2 more2 hr
Aug 14, 4:44 PM EDTSevere Thunderstorm WarningGRRKalamazoo11 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2019Every 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.