Law enforcement from Allegan county reported that an isolated severe thunderstorm brought down power lines and two trees from Glenn to five miles southwest of Holland.
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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.
Law enforcement from Allegan county reported that an isolated severe thunderstorm brought down power lines and two trees from Glenn to five miles southwest of Holland.
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 Sep 27, 2:40 PM EST, 3 hours 45 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND RAPIDS MI 340 PM EDT THU SEP 27 2007 LATEST UPDATE...ALL EXCEPT AVIATION... .SYNOPSIS...(340 PM EDT THU SEP 27 2007) LOW PRESSURE WAS SLIDING EAST ACROSS THE EASTERN UPPER PENINSULA...WITH A COLD FRONT STRETCHING SOUTHWEST. FRONT WILL SLIDE THROUGH LOWER MICHIGAN THIS EVENING. A FEW SHOWERS THIS EVENING AS FRONT SLIDES THROUGH...WITH CHANCE FOR PRECIPITATION ENDING AROUND MIDNIGHT. HIGH PRESSURE BUILDS IN FRIDAY AND REMAINS ACROSS THE GREAT LAKES REGION THROUGH THE MAJORITY OF THE WEEKEND...PRODUCING DRY AND SEASONAL CONDITIONS FOR SOUTHWEST LOWER MICHIGAN. && .SHORT TERM...(340 PM EDT THU SEP 27 2007) CHALLENGES IN THE SHORT TERM RESIDE WITH PRECIP COVERAGE THIS EVE...AND HOW COLD WE WILL GET OVERNIGHT FRI. COLD FRONT WAS PUSHING SOUTHEAST ACROSS THE CENTRAL UPPER PENINSULA STRETCHING SOUTHWEST THROUGH EASTERN IOWA. CU FIELD HAS DEVELOPED AHEAD OF THIS BOUNDARY IN WI...WITH PRECIP BEGINNING TO DEVELOP IN WI THIS AFTN AHEAD AND ALONG FRONTAL BOUNDARY. APPEARS BEST VORT ADVECTION WILL PASS WELL SOUTH OF LWR MI...INTO CENTRAL IN. MID LVL LAPSE RATES STEEPEN THROUGH REMAINDER OF THIS EVE...COUPLED WITH 500MB TEMPS OF -20 DEG C POURING INTO LWR MI BY 06Z FRI. CORE OF -1 TO -3 LI/S PASS THROUGH LWR MI PRIOR TO 06Z...COULD ALLOW ADDITIONAL VERTICAL GROWTH OF CONVECTION IN WI AS IT PROGRESSES EAST WITH THE FRONT. MUCAPE VALUES THROUGH LATE AFTN WILL HOVER BETWEEN 500-750 J/KG...HOWEVER EXPECT THAT ONCE WE APPROACH SUNSET WE WILL BEGIN TO LOSE THE DIURNAL AID TO THIS CONVECTION AND INHIBIT STORMS AS THEY MOVE EAST. BEHIND FRONT SEASONAL CONDITIONS POUR INTO LWR MI...WITH RIDGING BUILDING INTO THE GRT LKS FOR THE WEEKEND. DRY AIR WILL SLOWLY MIX INTO THE BNDRY LYR FRI AM. CLOUDS MAY LINGER A LITTLE LONGER ACROSS THE NORTHERN CWA...OTHERWISE A SLOW EROSION OF LOW/MID LVL MOISTURE. WINDS WILL BECOME RATHER LGT FRI EVE...RESULTING IN CONSIDERABLE RADIATIONAL COOLING AT THE SFC. FROST FORMATION WILL BE POSSIBLE SAT AM ACROSS INTERIOR NORTH...THEN TEMPS RETURN TO THE LOW 70S SAT. && .LONG TERM... (340 PM EDT THU SEP 27 2007) MODELS ARE NOW IN BETTER AGREEMENT IN KEEPING RIDGING AT THE SFC AND ALOFT IN PLACE ONE MORE DAY DURING THE DAY ON SUN. THESE FEATURES WILL BRING SUNSHINE TO AREA ONCE AGAIN ON SUN ALONG WITH ABOVE NORMAL TEMPS WELL INTO THE 70S AND APPROACHING 80 IN SOME LOCATIONS. RIDGING WILL SLIP EAST OF THE AREA SUN NIGHT AND THE INCOMING TROUGH FROM THE WEST/SOUTHWEST WILL PROVIDE A THREAT OF SHOWERS AND MAYBE A THUNDERSTORM DURING THE DAY ON MON. THIS TROUGH WILL THEN MOVE NORTHEAST AND ALLOW SHORT WAVE RIDGING TO BUILD IN FOR MON NIGHT AND ON TUE. ANOTHER SHORT WAVE COMING ONSHORE FROM THE PACIFIC WILL BE APPROACHING THE GREAT LAKES ON TUE NIGHT AND EARLY WED. THIS WILL PROVIDE AN ADDITIONAL CHC OF SHOWERS AND A THUNDERSTORM WHILE COOLING DOWN TEMPS A TAD. THE REST OF THE PERIOD FROM LATE WED THROUGH THU IS A BIT UNCERTAIN...MAINLY WITH REGARDS TO THE PLACEMENT OF THE UPPER JET. THE GFS FOR THE PAST COUPLE OF RUNS HAS BEEN KEEPING THE MAIN CORE OF THE JET NW OF THE AREA AS IT DIGS ENERGY OVER THE WEST. THE 00Z EURO AND 00Z GEM TO DIFFERENT DEGREES HAVE THE JET A BIT CLOSER TO THE AREA. WE FEEL THAT UNTIL SIGNIFICANT ENERGY DIGS OVER THE WEST TO PUMP THE ERN RIDGE BACK UP...WE MAY BE CLOSE ENOUGH TO KEEP THE THREAT OF PCPN IN THROUGH THU. WE HAVE UNDERCUT MEX MOS TEMPS A LITTLE FOR THE END OF THE PERIOD. && .AVIATION...(340 PM EDT THU SEP 27 2007) BAND OF SCATTERED SHOWERS HAS PRETTY MUCH MOVED THROUGH THE MKG AND GRR AREA AND WILL PASSING THROUGH THE REMAINDER OF THE TAF SITES THROUGH 22Z. UPPER LOW AND SURFACE COLD FRONT TO OUR WEST KEEPS A LOW THREAT OF PCPN THROUGH THE EARLY EVENING. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE NOW DEVELOPING OVER CENTRAL AND EASTERN WISCONSIN. THIS ACTIVITY WILL BE TRYING TO MOVE INTO/DEVELOP OVER THE AREA OVER THE NEXT COUPLE OF HOURS. BEST CHC OF SHOWERS AND ISOLATED THUNDER WILL BE AT THE GRR AND MKG TAF SITES THROUGH AROUND 00Z OR SO. HAVE UPDATED THE 18Z TAFS TO REFLECT THESE CHANGES. SKIES SHOULD CLEAR OUT LATER THIS EVENING FOR ALL SITES. A 4-6 KT WIND REMAINING UP OVERNIGHT SHOULD KEEP FOG POTENTIAL LOW. SOME CLOUDS BASED AROUND 2500 FT OR SO MAY TRY TO AFFECT THE NRN TAF SITES TOMORROW MORNING...BUT THE BETTER COVERAGE OF THESE CLOUDS SHOULD STAY NORTH OF THE TAF SITES. && .MARINE...(340 PM EDT THU SEP 27 2007) POST FRONTAL PASSAGE THIS AFTN/EVE WILL ALLOW COLD AIR ADVECTION TO KICK WAVES UP NEAR SMALL CRAFT ADVISORY CRITERIA IN THE LONGER FETCH REGIONS...PRIMARILY SOUTH OF GRAND HAVEN. RIDGING WILL SLIDE NE FRI AFTN/EVE AND SUPPRESS WAVES BY FRI EVE. && .HYDROLOGY...(340 PM EDT THU SEP 27 2007) LIGHT SHOWERS THROUGH THIS EVENING WILL EASILY BE ABSORBED INTO AREA STREAMS WITH LITTLE TO NO FLUCTUATIONS IN STREAMFLOW. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...NONE. LM...NONE. && SYNOPSIS: BEACHLER SHORT TERM: BEACHLER LONG TERM: MJS AVIATION: NJJ MARINE: BEACHLER HYDROLOGY: BEACHLER
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 516 AM EDT THU SEP 27 2007 MIZ037>040-043>046-050>052-056>059-064>067-071>074-280930- MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON- MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON- INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON- 516 AM EDT THU SEP 27 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT PATCHY DENSE FOG EARLY THIS MORNING COULD LEAD TO SOME HAZARDOUS WEATHER CONDITIONS. A FEW THUNDERSTORMS COULD DEVELOP LATER TODAY INTO THIS EVENING. SOME SMALL HAIL COULD ACCOMPANY ANY STRONG THUNDERSTORM THAT FORMS. A FEW CLOUD TO GROUND LIGHTNING STRIKES AND BRIEFLY HEAVY RAINFALL WILL ALSO BE POSSIBLE. THE STORM MOTION WILL BE MAINLY EAST AT 30 MPH. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY FROST COULD BECOME WIDESPREAD ACROSS CENTRAL PARTS OF LOWER MICHIGAN FRIDAY NIGHT. MONDAY AND TUESDAY NIGHT THERE COULD BE SOME THUNDERSTORMS AROUND THE AREA. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. LMZ844>849-280930- ST JOSEPH TO SOUTH HAVEN-SOUTH HAVEN TO HOLLAND- HOLLAND TO GRAND HAVEN-GRAND HAVEN TO WHITEHALL- WHITEHALL TO PENTWATER-PENTWATER TO MANISTEE- 516 AM EDT THU SEP 27 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT A COUPLE OF THUNDERSTORMS THIS AFTERNOON INTO THE EVENING COULD POSE A THREAT TO MARINERS .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THERE COULD BE SOME THUNDERSTORMS MONDAY AND TUESDAY NIGHT.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
645 PM EDT THU SEP 27 2007
MIZ043-050-056-064-272315-
ALLEGAN-MUSKEGON-OCEANA-OTTAWA-
645 PM EDT THU SEP 27 2007
...SPECIAL WEATHER STATEMENT...
AT 641 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 11 MILES NORTH OF
MONTAGUE TO 4 MILES EAST OF GRAND HAVEN TO SAUGATUCK...MOVING EAST AT
40 MPH.
PEA SIZE HAIL...WINDS GREATER THAN 40 MPH...OCCASIONAL CLOUD TO
GROUND LIGHTNING...ARE POSSIBLE WITH THESE STORMS.
LOCATIONS IMPACTED INCLUDE...
NUNICA... HOLLAND... GRAND HAVEN...
FENNVILLE... ZEELAND... WHITEHALL...
MUSKEGON... NORTON SHORES... SAUGATUCK...
COOPERSVILLE... ALLENDALE... GRAND VALLEY...
GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK
SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED.
LAT...LON 4365 8604 4331 8603 4329 8580 4277 8578
4276 8564 4256 8570 4256 8626 4269 8623
4305 8625 4365 8653
TIME...MOT...LOC 2245Z 270DEG 37KT 4357 8633 4305 8609
4265 8621
BEACHLERSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
705 PM EDT THU SEP 27 2007
MIZ037-038-043-044-050-056-057-064-071-272330-
ALLEGAN-KENT-LAKE-MASON-MUSKEGON-NEWAYGO-OCEANA-OTTAWA-VAN BUREN-
705 PM EDT THU SEP 27 2007
...SPECIAL WEATHER STATEMENT...
AT 701 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM SCOTTVILLE TO 6
MILES NORTHWEST OF SOUTH HAVEN...MOVING EAST AT 40 MPH.
PEA SIZE HAIL...WINDS UP TO 50 MPH...OCCASIONAL CLOUD TO GROUND
LIGHTNING...ARE POSSIBLE WITH THESE STORMS.
LOCATIONS IMPACTED INCLUDE...
RAVENNA... OLIVE CENTER... HOLLAND...
GLENN... GANGES... FREMONT...
BRIDGETON... BEECHWOOD... ZEELAND...
WOOSTER... LACOTA... FENNVILLE...
BRIDGETON... SPARTA... ALLEGAN...
GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE
OBJECTS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS
TREES. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE
PASSED.
LAT...LON 4409 8562 4383 8555 4330 8557 4330 8543
4246 8559 4239 8630 4269 8623 4295 8624
4326 8619 4401 8633
TIME...MOT...LOC 2305Z 261DEG 37KT 4393 8616 4328 8598
4247 8630
BEACHLERThe Grand Rapids radar (KGRR), 70 km away, was scanning. The volume nearest the first event began at 23:26 UTC.
2 thunderstorm wind. Local standard time, as filed.
A tree and power line was blown down near Blue Star Highway and 114th Street.
A tree and power line was blown down near 140th avenue and 65th streets.
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, September 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: 59570, 59571.