Alert archive / Michigan / Heat Advisories in 2011

Heat Advisory 1, NWS Grand Rapids, MI

July 18, 201111 counties in Michigan

NWS Grand Rapids, MI issued this heat advisory at Jul 18, 2011, 10:59 AM EDT for 11 counties in Michigan. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Jul 18, 2011, 10:59 AM EDT (14:59 UTC)
Expired
Jul 18, 2011, 8:00 PM EDT
In force
9 hr
Issued by
NWS Grand Rapids, MI

Counties Allegan County, MI, Barry County, MI, Calhoun County, MI, Clinton County, MI, Eaton County, MI, Ingham County, MI, Ionia County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Van Buren County, MI

The radar

The Grand Rapids radar (KGRR), 47 km from the middle of the area, began a volume at 14:59 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 heat advisory 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 heat advisory went out at Jul 18, 7:45 AM EDT, 3 hours 14 minutes earlier.

Area forecast discussion, Jul 18, 7:45 AM EDT, 3 hours 14 minutes before
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Hazardous weather outlook, Jul 18, 4:53 AM EDT, 6 hours 6 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
453 AM EDT MON JUL 18 2011

MIZ037>040-043>046-050>052-056>059-064>067-071>074-190900-
MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-
MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-
INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON-
453 AM EDT MON JUL 18 2011

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

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS ARE LIKELY TO REDEVELOP THIS AFTERNOON AHEAD OF WEAK
COLD FRONT THAT WILL CROSS THE AREA THIS EVENING. A FEW OF THESE
STORMS COULD HAVE DAMAGING WINDS...TORRENTIAL RAIN...AND FREQUENT
LIGHTNING. STORMS WILL MOVE EAST AROUND 40 MPH.

THE HEAT AND HUMIDITY WILL REACH TO NEAR 100 DEGREES IN PARTS OF
THE AREA INLAND FROM LAKE MICHIGAN DURING THE EARLY TO MID
AFTERNOON. THIS WILL INCREASE THE RISK OF HEAT STROKES FOR ANYONE
OUTSIDE OF A PROLONGED PERIOD OF TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

HEAT AND HUMIDITY WILL CONTINUE TO BUILD THROUGH THE COURSE OF THE
THIS WEEK. HIGHS WILL LIKELY PUSH INTO THE 90S EACH DAY AWAY FROM
LAKE MICHIGAN. THE WARMEST DAYS ARE EXPECTED TO BE WEDNESDAY
THROUGH FRIDAY. HEAT INDEX VALUES MAY CREST THE 100 DEGREE MARK
THIS WEEK...ESPECIALLY FROM WEDNESDAY THROUGH FRIDAY.

THERE IS THE POTENTIAL FOR ADDITIONAL THUNDERSTORMS LATE IN THE
WEEK AND INTO THE WEEKEND AS ANOTHER FRONTAL SYSTEM GETS CLOSE TO
THE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON INTO THIS EVENING.

LMZ844>849-190900-
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-
453 AM EDT MON JUL 18 2011

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

.DAY ONE...TODAY AND TONIGHT

THERE IS THE THREAT OF STRONG TO SEVERE STORMS THIS AFTERNOON INTO
THIS EVENING. IN THE STRONGER THUNDERSTORMS EXPECT INCREASED WAVE
HEIGHTS...NEAR CONSTANT LIGHTING... AND STRONG GUSTY WINDS.

AREA OF DENSE FOG ARE POSSIBLE AS VERY MOIST AIR MOVES OVER THE
COOLER WATERS OF LAKE MICHIGAN TODAY AND TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

AREA OF DENSE FOG ARE POSSIBLE THROUGH MOST OF THIS WEEK AS VERY
MOIST AIR MOVES OVER THE COOLER WATERS OF LAKE MICHIGAN. THERE IS
THE CHANCE OF MORE THUNDERSTORMS FRIDAY INTO SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON INTO THIS EVENING.

WDM

In the hours before

Local storm report, Jul 18, 9:40 AM EDT, 1 hour 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
940 AM EDT MON JUL 18 2011

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

0100 AM     TSTM WND DMG     1 S SCOTTVILLE          43.94N 86.28W
07/18/2011                   MASON              MI   DEPT OF HIGHWAYS

            BETWEEN 6 AND 8 TREES WERE CLEANED UP OFF THE ROAD NEAR
            U.S. 10 JUST SOUTH OF SCOTTVILLE. REPORT IS BOTH TIME AND
            LOCATION ESTIMATED.

&&

HOVING

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 11:35 PM EDTSpecial Marine WarningGRR115 min
Jul 18, 12:46 AM EDTSevere Thunderstorm WarningGRRMason, Oceana67 min
Jul 18, 12:57 AM EDTSpecial Weather StatementGRRLake, Mecosta, Muskegon, Newaygo, Osceola, Ottawa2 hr
Jul 18, 1:03 AM EDTSpecial Marine WarningGRR117 min
Jul 18, 1:51 AM EDTSpecial Weather StatementGRRClare, Isabella69 min
Jul 18, 2:06 AM EDTSpecial Weather StatementGRRAllegan, Barry, Gratiot, Ionia, Kent, Montcalm114 min
Jul 18, 2:56 AM EDTSpecial Marine WarningGRR69 min
Jul 18, 3:13 AM EDTSpecial Weather StatementGRRAllegan, Kent, Ottawa2 hr
Jul 18, 3:55 AM EDTSpecial Weather StatementGRRAllegan65 min
Jul 18, 12:26 PM EDTSpecial Weather StatementGRRLake, Mecosta, Newaygo79 min
Jul 18, 1:30 PM EDTSevere Thunderstorm WarningGRRMecosta, Montcalm31 min
Jul 18, 1:37 PM EDTSpecial Weather StatementGRRClare, Isabella, Mecosta, Osceola53 min
Jul 18, 2:24 PM EDTSpecial Weather StatementGRRIngham, Jackson66 min
Jul 18, 4:07 PM EDTExcessive Heat WatchGRRAllegan, Barry, Calhoun, Clare, Clinton, Eaton and 17 more12 hr
Jul 18, 5:31 PM EDTSpecial Weather StatementGRRIngham59 min
Jul 18, 5:53 PM EDTSevere Thunderstorm WarningGRRClinton, Ingham67 min

Nearby

Heat Advisories in Michigan, 2011Every heat advisory in 2011

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.