Alert archive / Michigan / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 51, NWS Grand Rapids, MI

July 18, 2010Allegan County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Jul 18, 2010, 4:32 PM EDT for Allegan County, Michigan. It was in force for 43 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: Jul 18, 2010, 4:32 PM EDT (20:32 UTC)
Expired: Jul 18, 2010, 5:15 PM EDT
In force: 43 min
Issued by: NWS Grand Rapids, MI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Allegan County, MI

The radar

The Grand Rapids radar (KGRR), 51 km from the middle of the area, began a volume at 20:34 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 18, 1:47 PM EDT	Severe Thunderstorm Watch	SPC	10 hr

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 Jul 18, 4:20 PM EDT, 12 minutes earlier.

Area forecast discussion, Jul 18, 4:20 PM EDT, 12 minutes before

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Hazardous weather outlook, Jul 18, 5:58 AM EDT, 10 hours 34 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
558 AM EDT SUN JUL 18 2010

LMZ844>849-MIZ037>040-043>046-050>052-056>059-064>067-071>074-191000-
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-MASON-LAKE-
OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-MONTCALM-
GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-INGHAM-
VAN BUREN-KALAMAZOO-CALHOUN-JACKSON-
558 AM EDT SUN JUL 18 2010

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

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT RISK OF SEVERE WEATHER TODAY. THE PRIMARY THREAT
IS DAMAGING WINDS BUT LARGE HAIL AND AN ISOLATED TORNADO ARE
POSSIBLE. LOCALIZED FLOODING FROM HEAVY THUNDERSTORM RAINS ARE
POSSIBLE AS WELL. THIS AFTERNOON AND EVENING ARE THE MOST LIKELY
TIME FOR SEVERE WEATHER AND THE MOST LIKELY PLACE WILL BE SOUTH OF
INTERSTATE 96.

STORM MOTION WILL BE FROM WEST TO EAST AT ABOUT 40 MPH.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THUNDERSTORMS WITH HEAVY RAIN ARE POSSIBLE ON THURSDAY AND
THURSDAY NIGHT. STRONG THUNDERSTORMS ARE POSSIBLE ON SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED THIS AFTERNOON OR EVENING.

OSTUNO

In the hours before

Local storm report, Jul 18, 3:43 PM EDT, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
343 PM EDT SUN JUL 18 2010

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

0330 PM     HEAVY RAIN       ALLENDALE               42.97N 85.95W
07/18/2010  M1.25 INCH       OTTAWA             MI   TRAINED SPOTTER

            RAINFALL TOTAL FROM THE PAST HOUR.

&&

MKALEMBK

Local storm report, Jul 18, 3:57 PM EDT, 35 minutes before

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Local storm report, Jul 18, 3:58 PM EDT, 34 minutes before

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Local storm report, Jul 18, 4:01 PM EDT, 31 minutes before

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Local storm report, Jul 18, 4:03 PM EDT, 29 minutes before

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Local storm report, Jul 18, 4:07 PM EDT, 25 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
Jul 18, 11:38 AM EDT	Special Marine Warning	GRR		112 min
Jul 18, 12:45 PM EDT	Special Weather Statement	GRR	Mason, Oceana	45 min
Jul 18, 1:11 PM EDT	Special Marine Warning	GRR		2 hr
Jul 18, 1:29 PM EDT	Special Marine Warning	GRR		103 min
Jul 18, 2:05 PM EDT	Special Weather Statement	GRR	Ottawa	55 min
Jul 18, 2:50 PM EDT	Special Weather Statement	GRR	Kent, Ottawa	55 min
Jul 18, 3:18 PM EDT	Severe Thunderstorm Warning	GRR	Van Buren	35 min
Jul 18, 3:27 PM EDT	Special Weather Statement	GRR	Barry, Kent	63 min
Jul 18, 3:45 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Barry	60 min
Jul 18, 3:49 PM EDT	Severe Thunderstorm Warning	GRR	Kent	41 min
Jul 18, 4:14 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Barry, Ionia, Kent	46 min
Jul 18, 4:46 PM EDT	Special Marine Warning	GRR		31 min
Jul 18, 5:09 PM EDT	Special Weather Statement	GRR	Kent	51 min
Jul 18, 6:06 PM EDT	Special Weather Statement	GRR	Newaygo	54 min
Jul 18, 6:48 PM EDT	Special Weather Statement	GRR	Clare, Isabella, Mecosta	57 min
Jul 18, 7:37 PM EDT	Special Weather Statement	GRR	Osceola	68 min
Jul 18, 7:41 PM EDT	Special Weather Statement	GRR	Clare	64 min
Jul 18, 7:45 PM EDT	Tornado Warning	GRR	Clare, Osceola	45 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2010 Every severe thunderstorm warning in 2010

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.