Alert archive / Michigan / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 56, NWS Grand Rapids, MI

August 29, 2019Montcalm County, Muskegon County, Newaygo County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Aug 29, 2019, 6:30 PM EDT for Montcalm County, Muskegon County, Newaygo County, Michigan. It was in force for 45 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 29, 2019, 6:30 PM EDT (22:30 UTC)
Expired
Aug 29, 2019, 7:15 PM EDT
In force
45 min
Issued by
NWS Grand Rapids, MI
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 mph

Counties Montcalm County, MI, Muskegon County, MI, Newaygo County, MI

The radar

The Grand Rapids radar (KGRR), 54 km from the middle of the area, began a volume at 22:32 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.

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 29, 5:10 PM EDT, 1 hour 20 minutes earlier.

Area forecast discussion, Aug 29, 5:10 PM EDT, 1 hour 20 minutes before
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Hazardous weather outlook, Aug 29, 3:03 PM EDT, 3 hours 27 minutes before
Hazardous Weather Outlook
National Weather Service Grand Rapids MI
303 PM EDT Thu Aug 29 2019

MIZ037>040-043>046-050>052-056>059-064>067-071>074-301915-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
303 PM EDT Thu Aug 29 2019

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

.DAY ONE...This Afternoon and Tonight

There is a marginal risk of severe storms through this evening.
The main threat is strong downburst winds. THere is also the
possibility of a tornado.

Lakeshore flooding and hazardous swim conditions are expected
into this evening.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and evening.

LMZ844>849-301915-
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-
303 PM EDT Thu Aug 29 2019

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

.DAY ONE...This Afternoon and Tonight

Winds and waves will be hazardous to small craft through early
evening. There is also a threat of strong thunderstorms with winds
gusting over 40 knots through early evening.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

No hazardous weather is expected at this time.

In the hours before

Special weather statement, Aug 29, 3:09 PM EDT, 3 hours 21 minutes before
Special Weather Statement
National Weather Service Grand Rapids MI
309 PM EDT Thu Aug 29 2019

MIZ037>040-043>046-050>052-056>059-292100-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-
Including the cities of Ludington, Baldwin, Reed City, Clare, Hart,
Fremont, Big Rapids, Mount Pleasant, Muskegon, Greenville, Alma,
Grand Haven, Jenison, Grand Rapids, Ionia, and St. Johns
309 PM EDT Thu Aug 29 2019

...Thunderstorms approaching Southwest Lower Michigan...

At 300 PM EDT...a line of thunderstorms extending from northeast to
southwest across Manitowoc Wisconsin will move east at 45 mph,
reaching Ludington around 4 PM and a Muskegon to Mount Pleasant line
around 6 PM.

These storms will produce frequent lightning and strong gusty winds
that could produce localized damage and power outages. Stay alert to
approaching thunderstorms this afternoon and evening and be ready to
take shelter inside a sturdy building.
Special weather statement, Aug 29, 4:56 PM EDT, 1 hour 34 minutes before
Special Weather Statement
National Weather Service Grand Rapids MI
456 PM EDT Thu Aug 29 2019

MIZ043-044-050-292200-
Oceana-Muskegon-Newaygo-
456 PM EDT Thu Aug 29 2019

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NEWAYGO...MUSKEGON AND
OCEANA COUNTIES...

At 455 PM EDT, National Weather Service meteorologists were tracking
strong thunderstorms located along a line extending from 7 miles
southwest of Silver Lake State Park to 30 miles west of Whitehall.
Movement was east at 50 mph.

Winds in excess of 40 mph and penny size hail are possible with
these storms. Winds could knock down tree limbs and create scattered
power outages.

Frequent cloud to ground lightning is occurring. Lightning can
strike 10 miles away from a thunderstorm. Seek a safe shelter inside
a building or vehicle.

LAT...LON 4366 8654 4375 8646 4382 8643 4382 8557
      4330 8556 4329 8579 4320 8579 4321 8591
      4312 8591 4312 8627 4332 8640 4350 8647
      4362 8654
TIME...MOT...LOC 2052Z 277DEG 43KT 4362 8664 4344 8709

CAS
Local storm report, Aug 29, 6:05 PM EDT, 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
605 PM EDT THU AUG 29 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0544 PM     HAIL             1 NNE MONTAGUE          43.42N 86.36W
08/29/2019  E0.70 INCH       MUSKEGON           MI   TRAINED SPOTTER

            TIME ESTIMATED FROM SPOTTER AND RADAR.

&&

NJJ

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 4:16 PM EDTSpecial Marine WarningGRR89 min
Aug 29, 4:56 PM EDTSpecial Weather StatementGRRMuskegon, Newaygo, Oceana64 min
Aug 29, 5:14 PM EDTSpecial Marine WarningGRR46 min
Aug 29, 5:50 PM EDTSevere Thunderstorm WarningGRRMuskegon, Newaygo25 min
Aug 29, 7:16 PM EDTSevere Thunderstorm WarningGRRKent, Montcalm44 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; radar from the NEXRAD Level II archive.