Severe thunderstorms produced several reports of downed trees and one report of large hail.
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.
Severe thunderstorms produced several reports of downed trees and one report of large hail.
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 Jun 20, 7:35 PM EST, 1 hour earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND RAPIDS MI 835 PM EDT WED JUN 20 2007 LATEST UPDATE...REVISED SHORT TERM... .SYNOPSIS...(422 PM EDT WED JUN 20 2007) A COLD FRONT WILL DROP SOUTH FROM THE LAKE SUPERIOR REGION TONIGHT AND THURSDAY... PRODUCING SCATTERED SHOWERS AND THUNDERSTORMS. THE FRONT IS EXPECTED TO STALL AND BECOME NEARLY STATIONARY ALONG OR SOUTH OF THE MICHIGAN INDIANA THURSDAY NIGHT. ADDITIONAL SHOWERS AND THUNDERSTORMS MAY FORM IN THE VICINITY OF THIS FRONTAL BOUNDARY FRIDAY AND SATURDAY...WHICH INCLUDES THE INTERSTATE 94 CORRIDOR. && .SHORT TERM... (835 PM EDT WED JUN 20 2007) NDFD UPDATED THIS EVENING FOR HIGHER POPS FOR OUR FAR NORTH AND NW CWA FOR THE MID TO LATE EVENING HOURS. KGRR AND RGNL RADAR TRENDS INDICATE THE BROKEN LINE OF CONVECTION ACROSS NORTH CENTRAL LWR MI IS WEAKENING AS IT MOVES SE. NEVERTHELESS SCATTERED SHOWERS AND TSTORMS WILL AFFECT PORTIONS OF OUR NORTHERNMOST CWA FROM 0030Z THROUGH THE LATE EVENING HOURS BEFORE DIMINISHING FURTHER AS IT MOVES FURTHER SE. CONVECTION WILL CONTINUE TO WEAKEN AS A RESULT OF VERY LIMITED INSTABILITY... LOW DEW PT VALUES AND LOSS OF INSTABILITY FROM DAYTIME HEATING. && .LONG TERM... (422 PM EDT WED JUN 20 2007) GFS ENSEMBLES ARE IN VERY GOOD AGREEMENT THROUGH NEXT WEDNESDAY THAT AN UPPER TROUGH WILL MOVE EAST FROM THE PLAINS TO THE GREAT LAKES. THE RIDGE WILL BE OVER THE CWA FROM LATE SUNDAY THROUGH TUESDAY BEFORE IT FLATTENS A BIT. SFC HIGH WILL BE DIRECTLY OVER THE CWA SATURDAY AND THEN MOVE SOUTHEAST SUNDAY. WE/LL HAVE TO WATCH FOR POTENTIAL CONVECTIVE DEVELOPMENT SUNDAY NIGHT AS THE WARM FRONT PUSHES NORTH. WITH THE SFC LOW STILL OVER WESTERN NORTH DAKOTA...WE THINK THE CHC OF PCPN IS MINIMAL AND SO HAVE DRY GRIDS. IN FACT...WE HAVE DRY GRIDS THROUGH TUESDAY. THE NEXT CHANCE OF RAIN WILL ARRIVE TUESDAY NIGHT AND WEDNESDAY AS THE COLD FRONT APPROACHES. AHEAD OF THE FRONT...TEMPS WILL LIKELY CLIMB BACK INTO THE 90S TUESDAY. && .AVIATION...(106 PM EDT WED JUN 20 2007) VFR CONDITIONS ARE EXPECTED THROUGH 18Z THURSDAY. THE FOCUS FOR THE FORECAST IS TONIGHT. A WEAK COLD FRONT IS EXPECTED TO PUSH SOUTH INTO THE STATE. MOISTURE ISN/T GREAT BUT IS EXPECTED TO POOL A BIT NEAR THE FRONT. MODELS SUGGEST THAT WE/LL SEE SOME PCPN ALONG THE FRONT AFTER 06Z. ADDED VCTS TO THE TAFS TO ACCOUNT FOR THIS. THE PCPN SHOULD BE THROUGH THE TAF SITES BY 13Z. && .MARINE... (422 PM EDT WED JUN 20 2007) PERIOD OF 15-25 KT SW FLOW TONIGHT AHEAD OF APPROACHING FRONT WILL PRODUCE WAVES CLOSE TO SMALL CRAFT CRITERIA NORTH OF HOLLAND. OTHERWISE RELATIVELY WEAK FLOW IS EXPECTED WITH SURFACE RIDGING RETURNING BEHIND THE FRONT. && .HYDROLOGY... (422 PM EDT WED JUN 20 2007) NO WIDESPREAD SIGNIFICANT RAINFALL EXPECTED WITH FRONTAL BOUNDARY DROPPING DOWN FROM THE NORTH TONIGHT/THURSDAY. HEAVIEST RAIN WITH MCS ACTIVITY IS CURRENTLY EXPECTED TO BE SW OF MI ON FRIDAY/FRIDAY NIGHT. THEREFORE NO ISSUES ANTICIPATED ATTM. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...NONE. LM...SMALL CRAFT ADVISORY FROM HOLLAND NORTH TONIGHT. && SHORT TERM: LAURENS LONG TERM: 93 AVIATION: 93 MARINE: MEADE HYDROLOGY: MEADE
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 412 PM EDT WED JUN 20 2007 MIZ037>040-043>046-050>052-056>059-064>067-071>074-211015- MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON- MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON- INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON- 412 PM EDT WED JUN 20 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TONIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVERNIGHT NORTH OF A WHITEHALL TO ALMA LINE. A SLOW MOVING COLD FRONT WILL MOVE INTO CENTRAL LOWER MICHIGAN AFTER 1 AM. ALTHOUGH MOST OF THE STORMS THAT DEVELOP ARE NOT EXPECTED TO BE SEVERE...A COUPLE OF THEM MAY BE. WIND GUSTS TO 60 MPH AND 1 INCH HAIL ARE THE MAIN THREATS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THUNDERSTORMS ARE POSSIBLE ACROSS THE AREA DURING THURSDAY. THESE STORMS ARE NOT EXPECTED TO SEVERE. BRIEF HEAVY RAINFALL AND FREQUENT CLOUD TO GROUND LIGHTNING ARE THE EXPECTED HAZARDS. THERE WILL BE ANOTHER CHANCE OF THUNDERSTORMS SOUTH OF INTERSTATE 96 FRIDAY NIGHT INTO SATURDAY. THERE IS A SLIGHT RISK THAT SOME OF THOSE STORMS COULD BE SEVERE ALSO WITH WIND AND HAIL THE MAIN THREATS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED TODAY OR TONIGHT. LMZ844>849-211015- ST JOSEPH TO SOUTH HAVEN-SOUTH HAVEN TO HOLLAND- HOLLAND TO GRAND HAVEN-GRAND HAVEN TO WHITEHALL- WHITEHALL TO PENTWATER-PENTWATER TO MANISTEE- 412 PM EDT WED JUN 20 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TONIGHT THREE TO FIVE FOOT WAVES MAY POSE A THREAT TO SMALL CRAFT NORTH OF HOLLAND. THUNDERSTORMS ARE POSSIBLE THROUGHOUT THE NEARSHORE WATERS TONIGHT. THERE IS A SLIGHT RISK SOME OF THOSE STORMS MAY BE SEVERE NORTH OF WHITEHALL AFTER MIDNIGHT. WIND GUSTS TO 50 KNOTS AND 1 INCH HAIL ARE THE MAIN THREATS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THUNDERSTORMS ARE POSSIBLE TILL MID AFTERNOON. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED TODAY OR TONIGHT. WDM 93
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
927 PM EDT WED JUN 20 2007
MIZ038-039-044>046-051-052-210230-
GRATIOT-ISABELLA-LAKE-MECOSTA-MONTCALM-NEWAYGO-OSCEOLA-
927 PM EDT WED JUN 20 2007
...SPECIAL WEATHER STATEMENT...
AT 926 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
LINE OF STRONG THUNDERSTORMS EXTENDING FROM NEAR BALDWIN EAST ALONG
HIGHWAY 10 THROUGH REED CITY TO EVART. THE LINE WAS MOVING SOUTHEAST
AT 40 MPH.
WINDS UP TO 50 MPH...OCCASIONAL CLOUD TO GROUND LIGHTNING...BRIEF
HEAVY DOWNPOURS...ARE POSSIBLE WITH THESE STORMS.
LOCATIONS IN OR NEAR THE PATH INCLUDE...REED CITY...BALDWIN...
EVART...BARRYTON...REMUS...CHIPPEWA LAKE AND BIG RAPIDS.
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 4400 8527 4396 8572 4404 8609 4345 8532
4336 8496 4341 8462
DUKEThe Grand Rapids radar (KGRR), 109 km away, was scanning. The volume nearest the first event began at 01:36 UTC.
2 thunderstorm wind. Local standard time, as filed.
Three trees were blown down one mile south of Chase.
Law enforcement reported three trees blown down two miles north of Leroy and seven eighths inch diameter hail in Leroy.
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, June 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: 40508, 40509.