Two men were injured by a lightning strike while picking blueberries east of South Haven.
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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.
Two men were injured by a lightning strike while picking blueberries east of South Haven.
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 27, 6:45 AM EST, 4 hours 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND RAPIDS MI 745 AM EDT WED JUL 27 2011 LATEST UPDATE...AVIATION... .SYNOPSIS...(425 AM EDT WED JUL 27 2011) IT WILL START TO TURN MORE HUMID THIS AFTERNOON AND PARTICULARLY TONIGHT AS SOUTHERLY WINDS DEVELOP ON THE BACK SIDE OF A HIGH PRESSURE RIDGE MOVING EAST OF OUR REGION. RAIN AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND BECOME WIDESPREAD TONIGHT WITH SOME LOCALLY HEAVY RAINFALL POSSIBLE. SCATTERED SHOWERS AND THUNDERSTORMS ARE POSSIBLE THURSDAY INTO FRIDAY. && .SHORT TERM...(425 AM EDT WED JUL 27 2011) (TODAY THROUGH FRIDAY AFTERNOON) OUR PRIMARY SHORT TERM FCST CHALLENGE IS TO DETERMINE CONVECTIVE POTENTIAL FROM THIS AFTN THROUGH FRIDAY. TSTORMS WILL MOVE IN FROM THE WEST THIS AFTN AND MAINLY FOR TONIGHT FUELED BY AN INCREASING 40-50 KT SW LLJ AND VIGOROUS 1000-850 MB MOISTURE TRANSPORT. TSTORMS COULD PUT DOWN SOME HEAVY RAINFALL AND CAUSE LOCALIZED FLOODING WITH PRECIPITABLE WATER VALUES SURGING TO IN EXCESS OF TWO INCHES AND SFC DEW PTS CLIMBING INTO THE 70S. WE WILL HAVE TO MONITOR FOR POTENTIAL OF SOME TRAINING OF ECHOES AS WELL. A CONSENSUS OF 00Z GUIDANCE QPF DOES NOT WARRANT A FLOOD WATCH HEADLINE BUT WE WILL NEED TO MONITOR THIS CLOSELY FOR SOME LOCALIZED FLOODING ISSUES OVERNIGHT AND PERHAPS A FEW SEVERE STORMS. 00Z 4KM WRF-NMM SIM Z GUIDANCE SUGGESTS EXTENSIVE TSTORM ACTIVITY WILL DEVELOP ACROSS OUR AREA OVERNIGHT. BASED ON ALL OF THESE FACTORS WE WILL BUMP UP TO CATEGORICAL POPS TONIGHT FOR MOST OF OUR AREA. OVERALL SHORT RANGE GUIDANCE TRENDS FROM THE 00Z NAM/GFS ARE INDICATIVE OF A LITTLE LESS CONVECTIVE POTENTIAL THURSDAY THROUGH THURSDAY NIGHT INTO FRIDAY WITH THE FOCUS FOR THE BETTER CHC FOR STORMS EXPECTED TO SHIFT FURTHER SOUTH ACROSS IL/IN/OH BY THEN. HOWEVER WE WILL STILL MAINTAIN CHC POPS FOR TSTORMS THURSDAY THROUGH THURSDAY NIGHT INTO FRIDAY. COVERAGE OF STORMS IN THAT TIME FRAME SHOULD BE SIGNIFICANTLY LESS THAN WHAT WE WILL HAVE TONIGHT. A CONSENSUS OF 0726/21Z SREF SVR WX PARAMETERS STILL FAVORS AREAS WELL TO OUR WSW TO SW FOR SVR WX TODAY THROUGH FRIDAY. THIS NOTION LOOKS REASONABLE BUT I WOULD NOT RULE OUT POTENTIAL FOR A FEW SEVERE STORMS INTO SW LWR MI TONIGHT THROUGH THURSDAY. IN FACT THE THE SPC DAY 2 CONV OUTLOOK NOW INCLUDES THE SOUTHERN TWO THIRDS OF OUR AREA IN THE SLGT RISK OUTLOOK FOR THURSDAY. && .LONG TERM...(425 AM EDT WED JUL 27 2011) (FRIDAY NIGHT THROUGH TUESDAY) ZONAL FLOW WILL BEGIN THE LONG TERM PERIOD ALOFT...TRANSITIONING TO NORTHWEST FLOW INTO EARLY NEXT WEEK. STRONG UPPER RIDGING WILL BE VERY CLOSE BY THE ENTIRE TIME TO THE SOUTH AND SOUTHWEST. THERE ARE NO MAJOR SHORTWAVES THAT DIRECTLY AFFECT THE AREA...INSTEAD PASSING WELL TO THE NORTH ACROSS CANADA. THEREFORE...THE LONG TERM PERIOD IS FOR THE MOST PART DRY. HIGH 500MB HEIGHTS AND WARM 850MB TEMPS (+15 TO +20C) SHOULD KEEP READINGS WARM. THE SHORTWAVES SWINGING ACROSS CANADA ARE TIMED DIFFERENTLY BY THE GFS AND THE EUROPEAN...WHICH IS NOT TOO SURPRISING BEING THAT FAR OUT IN THE FORECAST. AS SUCH...THIS LEADS TO A LOW CONFIDENCE ON WHEN THE ASSOCIATED SURFACE FRONTAL BOUNDARIES PUSH THROUGH LOWER MICHIGAN. FOLLOWED THE EUROPEAN FOR TIMING AT THIS POINT AND HAVE A 20 POP IN FOR SUNDAY NIGHT WITH A WEAK FRONT IN THE AREA. NEXT FRONT PUSHES TOWARD THE AREA ON TUESDAY. WE MAY NEED TO ADD POPS FOR TUESDAY...BUT BEING OUT ON DAY 7 KEPT THINGS DRY WITH SURROUNDING OFFICES DRY AS WELL. && .AVIATION...(745 AM EDT WED JUL 27 2011) CLOUDS WILL BE ON THE INCREASE TODAY FROM WEST TO EAST AS A WARM FRONT LIFTS INTO THE AREA. CEILINGS WILL LOWER AND THICKEN WITH TIME. SHOWERS AND STORMS ARE POISED JUST UPSTREAM THIS MORNING OVER WISCONSIN. THESE STORMS WILL MAINLY BE FOCUSED NORTH AND WEST OF THE TAF SITES INTO EARLY AFTERNOON...BUT KMKG WILL OBVIOUSLY BE THE FIRST TO BE IMPACTED. SHOWERS AND STORMS WILL MOVE INTO WEST CENTRAL LOWER MICHIGAN AT MIDDAY. THE PRECIPITATION WILL GRADUALLY AFFECT ALL THE TAF SITES FROM NORTHWEST TO SOUTHEAST BY EARLY EVENING. CONDITIONS WILL TREND INTO THE MVFR CATEGORY TONIGHT WITH WIDESPREAD SHOWERS AND STORMS IN THE AREA. && .MARINE...(425 AM EDT WED JUL 27 2011) A SOUTHERLY LOW LEVEL JET WILL HELP TO CREATE 15 TO 20 KT SURFACE WINDS BY THIS AFTERNOON. GREATEST WAVE ACTION SHOULD OCCUR NORTH OF BIV BUT WAVE ACTION SHOULD REMAIN BELOW SCA CRITERIA GIVEN THE WARM AIR ADVECTION PATTERN. I AM CONCERNED WIND SPEEDS MAY REACH SCA CRITERIA LATE TODAY/TONIGHT SO FUTURE SHIFTS WILL NEED TO MONITOR THIS. TSTORMS WILL POSE A HAZARD TO MARINERS FROM THIS AFTN THROUGH LATE WEEK. && .HYDROLOGY...(425 AM EDT WED JUL 27 2011) THUNDERSTORMS THIS AFTERNOON THROUGH TONIGHT MAY BRING PERIODS OF HEAVY RAINFALL AS PRECIPITABLE WATER VALUES SURGE TO OVER TWO INCHES AND SFC DEW PTS REACH THE LOWER 70S OVERNIGHT. THIS MAY CAUSE SOME LOCALIZED FLOODING. SHOWERS AND TSTORMS WILL BE MORE SCATTERED IN NATURE THURSDAY INTO FRIDAY. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...NONE. LM...NONE. && SYNOPSIS: LAURENS SHORT TERM: LAURENS LONG TERM: DUKE AVIATION: DUKE MARINE: LAURENS HYDROLOGY: LAURENS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 943 AM EDT WED JUL 27 2011 MIZ037>040-043>046-050>052-056>059-064>067-071>074-281115- MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON- MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON- INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON- 943 AM EDT WED JUL 27 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS ARE POSSIBLE TODAY. STORMS TODAY ARE NOT EXPECTED TO BE SEVERE BUT WILL BE CAPABLE OF PRODUCING WINDS TO 40 MPH. MORE STORMS ARE EXPECTED TONIGHT. A FEW OF THE STORMS COULD BE STRONG TO SEVERE WITH WIND GUSTS TO 50 MPH BEING THE MAIN THREAT. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THUNDERSTORMS CHANCES WILL CONTINUE THURSDAY AND THURSDAY NIGHT AHEAD OF A COLD FRONT. THE STORM PREDICTION CENTER HAS THE AREA SOUTH OF A LINE FROM WHITEHALL TO MOUNT PLEASANT IS A SLIGHT RISK FOR SEVERE STORMS. THE MAIN THREATS FROM STORMS THURSDAY WILL BE DAMAGING WINDS AND HEAVY RAIN. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS POSSIBLE ON THURSDAY. LMZ844>849-281115- 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- 943 AM EDT WED JUL 27 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT SOUTH WINDS OF 10 TO 20 KNOTS WILL BUILD WAVES INTO THE 1 TO 3 FOOT RANGE NORTH OF GRAND HAVEN TODAY AND INTO THIS EVENING. WAVES MAY APPROACH 4 FEET AT TIMES THIS EVENING NEAR BIG AND LITTLE SABLE POINTS. THUNDERSTORMS ARE POSSIBLE TODAY AND TONIGHT. A FEW OF THE STORMS TONIGHT COULD BE STRONG WITH WIND GUSTS TO 45 KNOTS. STORMS WILL BE CAPABLE OF TORRENTIAL RAIN AND CLOUD TO WATER LIGHTNING STRIKES. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THUNDERSTORM CHANCES WILL CONTINUE THURSDAY INTO THURSDAY NIGHT AHEAD OF A COLD FRONT. SOME STORMS MAY REACH SEVERE LEVELS WITH HEAVY RAIN AND STRONG WINDS BEING THE MAIN THREATS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS POSSIBLE ON THURSDAY. DUKE 93
The Grand Rapids radar (KGRR), 72 km away, was scanning. The volume nearest the first event began at 16:01 UTC.
1 lightning. Local standard time, as filed.
Multiple media sources reported a lightning strike injured two males who were picking blueberries at the time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2011Every state in 2011This day in weather historyWarnings in Michigan, July 2011
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: 324763.