Isolated severe thunderstorms over south central lower Michigan produced a couple of reports of wind damage.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS GRR wrote it up.
Isolated severe thunderstorms over south central lower Michigan produced a couple of reports of wind damage.
The local office's own words before the first event, 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 the first event at Jul 5, 11:49 AM EST, 41 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1249 PM EDT THU JUL 5 2007 LATEST UPDATE...SHORT TERM... .SYNOPSIS... (1249 PM EDT THU JUL 5 2007) AN UPPER LEVEL DISTURBANCE WILL SWING THROUGH THE GREAT LAKES REGION THIS AFTERNOON RESULTING IN SCATTERED SHOWER AND THUNDERSTORM DEVELOPMENT. SOME OF THE STORMS THAT DEVELOP MAY APPROACH SEVERE LEVELS. THE STORMS WILL BE AIDED BY A WARM AND HUMID AIRMASS THAT IS PLACE. && .SHORT TERM... (1249 PM EDT THU JUL 5 2007) WATER VAPOR IMAGERY CONTINUES TO INDICATE A SHORTWAVE DIVING TOWARD SOUTHWEST AND CENTRAL LOWER MICHIGAN AT MIDDAY FROM MINNESOTA AND WISCONSIN. AT THE SURFACE...IT APPEARS THERE IS A TROUGH EXTENDING FROM ST. IGNACE NEAR THE BRIDGE...WESTWARD INTO NORTHERN WISCONSIN. THE SURFACE TROUGH AND UPPER SHORTWAVE WILL SWING THROUGH THE AREA THIS AFTERNOON AND EVENING...CONTRIBUTING TO SYNOPTIC SCALE LIFT. AN UNSTABLE AIRMASS IS IN PLACE WITH MID LEVEL COOLING OCCURRING COINCIDENT WITH STRONG SURFACE HEATING. DEW POINTS REMAIN FAIRLY HIGH IN THE LOWER 60S. MIXED LAYER CAPE VALUES ARE NOW ON THE ORDER OF 1300 J/KG WITH CIN VALUES BEGINNING TO APPROACH ZERO. WITH VERY LITTLE NEGATIVE AREA LEFT ON THE SOUNDING WOULD EXPECT SCATTERED CONVECTION TO BEGIN AND THIS IS THE ALREADY THE CASE WITH A CELL MOVING EAST...NORTH OF ST. JOHNS. MAIN LIMITING FACTOR WILL BE THE LACK OF A SIGNIFICANT SURFACE TRIGGER. SURFACE FLOW OVERALL IS QUITE WEAK. LEFT THE FORECAST UNCHANGED AS HIGHER POPS IN THE EAST LOOK GOOD GIVEN A DIVERGENT LAKE BREEZE OFF OF LAKE MICHIGAN. WILL BE MONITORING FOR THE POTENTIAL OF SEVERE THIS AFTERNOON GIVEN DECENT CAPE VALUES. SHEAR IS UNIDIRECTIONAL AND WOULD POINT TOWARD WIND BEING THE MAIN THREAT. 0-6KM BULK SHEAR VALUES ARE ON THE ORDER OF 30-40 KNOTS SO STORMS WILL HAVE ORGANIZATION. WIND SHOULD BE THE MAIN THREAT. THE THREAT OF SHOWERS AND STORMS WILL DIMINISH FAIRLY QUICKLY THIS EVENING AS THE FINAL UPPER WAVE MOVES SOUTH AND DIURNAL INSTABILITY WANES. WE DO EXPECT THE WAVE TO BE ALONG THE I-94 CORRIDOR BY THE BEGINNING OF THE TONIGHT PERIOD...AND ALL CONVECTION SHOULD BE JUST SOUTH OF THE CWFA BORDER. WE HAVE LEFT THE TONIGHT PERIOD DRY WITH THIS IN MIND. SOME COOLER AND DRIER AIR WILL ADVECT OVER THE AREA FROM THE NORTH. THIS WILL ALLOW TEMPS TO FALL DOWN INTO THE MID 50S UP NORTH TO AROUND 60 DOWN SOUTH. THE PERIOD OF FRI THROUGH SAT THEN CONTINUES TO LOOKS FAIRLY QUIET FOR THE CWFA. THE UPPER CYCLONIC FLOW THAT WILL BE OVERHEAD LATER TODAY WILL QUICKLY SLIP EAST OF THE CWFA. WE WILL THEN BECOME UNDER THE INFLUENCE OF THE DOWNSTREAM SIDE OF THE UPPER RIDGE TO OUR WEST ALONG WITH SFC RIDGING MOVING IN. THIS WILL ALLOW FOR A LACK OF SIGNIFICANT CLOUD COVER. MAX TEMPS WILL WARM FROM THE LOW TO MID 80S ON SAT TO THE MID TO UPPER 80S ON SUN AS H850 TEMPS WARM FROM THE MID TEENS ON FRI TO THE UPPER TEENS C ON SAT. && .LONG TERM... (422 AM EDT THU JUL 5 2007) NO MAJOR CHANGES TO THE GOING FORECAST. JUST TWEAKED POPS TO TIME THE FRONT THROUGH BEGINNING SUNDAY AFTERNOON WITH SLIGHT CHANCE ACROSS THE FAR NORTH AND THEN CHANCE POPS ALL ZONES ON MONDAY AND MONDAY NIGHT AS THE FRONT SLOWLY SLIDES SOUTH. WILL CONTINUE TO HAVE POPS ENDING AT 12Z TUESDAY AS THE FRONT SHOULD BE CLEAR OF THE FORECAST AREA BY THEN. && .AVIATION...(110 AM EDT THU JUL 5 2007) SOME AREAS SEEING 3-5SM VISBYS WITH MOIST GROUND AND AIR ALONG WITH CALM WINDS ALLOWING FOR FOG FORMATION. EXPECT THIS TO CONTINUE OVERNIGHT. JXN HAS ALREADY BOUNCED AROUND BETWEEN 3SM AND 3/4SM AND WILL CARRY TEMPO GROUP FOR 3/4SM THERE. EXPECT VFR AFTER 12Z ALL SITES. && .MARINE... (422 AM EDT THU JUL 5 2007) SOUTHWEST WINDS ACROSS THE NEARSHORE THIS MORNING ARE FAIRLY LIGHT...GENERALLY UNDER 10 KNOTS. WINDS WILL BECOME MORE NORTHWEST THIS AFTERNOON AS A SURFACE TROUGH MOVES THROUGH. A FEW HIGHER GUSTS WILL BE POSSIBLE...BUT CONDITIONS OVERALL SHOULD BE RATHER QUIET. SOME AREAS OF FOG WILL CONTINUE TO BE POSSIBLE DURING THE DAY TODAY AS COLDER WATER ALONG THE SHORELINE WILL INTERACT WITH THE SOMEWHAT MOIST AIR MASS IN PLACE. && .HYDROLOGY... (422 AM EDT THU JUL 5 2007) AREA RIVERS AND STREAMS UP OVER THE NORTHWEST CORNER OF THE CWFA HAVE GENERALLY CRESTED AND ARE ALREADY FALLING AFTER THE GOOD DEAL OF RAIN THEY RECEIVED TUE NIGHT. THE SHOWERS AND STORMS FORECAST FOR TODAY ARE NOT EXPECTED TO BE WIDESPREAD...SO NO WIDESPREAD PROBLEMS ARE EXPECTED. SOME LOCALLY HEAVY DOWNPOURS WILL BE POSSIBLE. AFTER THIS AFTERNOON...WE SHOULD SEE AT LEAST A COUPLE OF ENTIRELY DRY DAYS IF NOT MORE. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...NONE. LM...NONE. && SHORT TERM: NJJ/DUKE LONG TERM: OSTUNO AVIATION: OSTUNO MARINE: NJJ HYDROLOGY: NJJ
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 112 PM EDT THU JUL 5 2007 LMZ844>849-MIZ037>040-043>046-050>052-056>059-064>067-071>074-061015- ST JOSEPH TO SOUTH HAVEN-SOUTH HAVEN TO HOLLAND- HOLLAND TO GRAND HAVEN-GRAND HAVEN TO WHITEHALL- WHITEHALL TO PENTWATER-PENTWATER TO MANISTEE-MASON-LAKE-OSCEOLA- CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-MONTCALM-GRATIOT- OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-INGHAM-VAN BUREN- KALAMAZOO-CALHOUN-JACKSON- 112 PM EDT THU JUL 5 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS ARE POSSIBLE ACROSS ALL OF THE SOUTHWEST QUARTER OF LOWER MICHIGAN THIS AFTERNOON AND EVENING. AN UPPER LEVEL DISTURBANCE MOVING INTO A WARM AND HUMID AIRMASS IS EXPECTED TO RESULT IN SCATTERED THUNDERSTORM DEVELOPMENT. ANY STORMS THAT DEVELOP WILL BE CAPABLE OF PRODUCING CLOUD TO GROUND LIGHTNING STRIKES AND LOCALLY HEAVY RAIN. SEVERE STORMS WILL BE POSSIBLE AS WELL...WITH DAMAGING WINDS BEING THE MAIN THREAT. HAIL CANNOT BE RULED OUT EITHER IN THE STRONGEST STORMS. HAIL TO AROUND THREE QUARTERS ON AN INCH WILL BE POSSIBLE. STORM MOVEMENT WILL BE TO THE SOUTHEAST NEAR 25 MPH. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SCATTERED THUNDERSTORMS ARE POSSIBLE SUNDAY NIGHT...MONDAY AND MONDAY NIGHT AS A COLD FRONT SLOWLY MOVES THROUGH. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING. OSTUNO DUKE
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 119 PM EDT THU JUL 5 2007 MIZ059-067-051745- CLINTON-INGHAM- 119 PM EDT THU JUL 5 2007 ...SPECIAL WEATHER STATEMENT... AT 117 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 16 MILES NORTHWEST OF WILLIAMSTON...OR 10 MILES SOUTHEAST OF ST. JOHNS...MOVING SOUTHEAST AT 20 MPH. PEA SIZE HAIL...BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH THIS STORM. LOCATIONS IN OR NEAR THE PATH INCLUDE... RURAL SOUTHEASTERN CLINTON COUNTY AND RURAL NORTHERN INGHAM COUNTY. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED. LAT...LON 4305 8436 4294 8456 4265 8430 4278 8406 WDM
The Detroit radar (KDTX), 76 km away, was scanning. The volume nearest the first event began at 17:30 UTC.
2 thunderstorm wind. Local standard time, as filed.
Numerous trees were blown down at Round Lake road and Looking Glass river.
Numerous trees and power lines were blown down one mile north of Webberville. A house was also damaged at the intersection of Allen and Morrice.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2007Every state in 2007This day in weather historyWarnings in Michigan, July 2007
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 48547, 48553.