A severe thunderstorm downed a tree on a power line at Little Girls Point in Gogebic County.
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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 MQT wrote it up.
A severe thunderstorm downed a tree on a power line at Little Girls Point in Gogebic County.
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 Marquette, MI wrote its last area forecast discussion before the first event at Jun 20, 11:37 AM CST, 2 hours 47 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MARQUETTE MI 137 PM EDT WED JUN 20 2012 .SHORT TERM...(TODAY) ISSUED AT 513 AM EDT WED JUN 20 2012 CURRENT SHOWER AND TS ACTIVITY IS PUSHING INTO A MORE FAVORABLE WIND ENVIRONMENT...WITH DCAPE VALUES OF 900-1100 J/KG OVER THE KEWEENAW PENINSULA...AND 60-65KT 300MB JET OVER W AND CENTRAL LAKE SUPERIOR AND NW UPPER MI. PW VALUES REMAIN AROUND 1.8IN OVER W LAKE SUPERIOR...TAPERING OFF TO 1.1IN OVER EASTERN UPPER MI. STILL...MUCH OF THE LAND REMAINS CAPPED...WITH SHOWERS WEAKENING AS THEY PUSH ONSHORE. WILL CONTINUE TO MONITOR THE PROGRESSION OF THE SHOWERS AND THUNDERSTORMS...WITH EVEN WEAK SHOWERS PRODUCING WIND GUSTS NEAR 25 TO 35MPH. SLOWED DOWN THE PASSAGE OF THE COLD FRONT FOR THIS PERIOD. THE MAIN RESULTS IN THE NEAR TERM ARE WARMER TEMPS AND A LONGER PERIOD OF INCREASED SOUTHERLY WINDS THIS AFTERNOON...AND THE POTENTIAL FOR HEAVIER RAIN OVER LAKE SUPERIOR AND FAR WESTERN UPPER MI. HAVE NEARLY 2-3 INCHES OF RAIN OVER PORTIONS OF LAKE SUPERIOR...WITH OVER AN INCH FIGURED OVER FAR W GOGEBIC AND ONTONAGON COUNTIES...DIMINISHING TO AN AVERAGE LESS THAN A QUARTER OF AN INCH /EVENT TOTAL/ OVER THE EASTERN THIRD OF THE CWA. GIVEN THE INCREASED TEMPERATURE FORECAST...EXPECT AN INCREASINGLY UNSTABLE ENVIRONMENT TOWARDS THE MID AFTERNOON HOURS. STRONG WINDS AND HEAVY RAIN LOOK TO BE THE MAIN THREAT AS THE FRONT NEARS AND CROSSES WEST TO EAST LATE THIS AFTERNOON/OVERNIGHT. BOWING STRUCTURES WILL REMAIN POSSIBLE...AS HAS BEEN NOTED WITH SOME OF OR STRONGER OBSERVED GUSTS...AS MLCAPE NEARS 1000-2000 J/KG WITH AROUND 30KT OF DEEP LAYER SHEAR. LARGE HAIL WILL ALSO BE POSSIBLE IN SOME OF THE STRONGER STORMS. .LONG TERM...(TONIGHT THROUGH TUESDAY) ISSUED AT 513 AM EDT WED JUN 20 2012 THURSDAY...THERE MAY BE SOME LINGERING SHRA/TSRA OVER THE ERN CWA BTWN 12Z-15Z WITH A BRIEF PERIOD OF UPPER LEVEL DIV WITH THE RIGHT ENTRANCE OF THE 250-300 MB JET AND QVECTOR CONV AHEAD OF THE MID LEVEL TROUGH. DRIER AIR WILL THEN MOVE IN OVER THE AREA ON WRLY WINDS. THERE MAY BE ENOUGH LINGERING MOISTURE FROM ALONG AND SOUTH OF ISQ-ERY EAST SO THAT THAT CONVERGING LAKE BREEZE BOUNDARIES COULD SET OFF SOME SCT -SHRA. OTHERWISE...850 MB TEMPS DROPPING TO AROUND 10C WILL SUPPORT HIGHS IN THE LOWER TO MID 70S. THURSDAY NIGHT...WITH DIURNAL COOLING...WEAK HIGH PRES BUILDING INTO THE AREA AND NO SIGNIFICANT SHORTWAVES IN CYCLONIC MID LEVEL FLOW...DRY WEATHER SHOULD PREVAIL UNDER PARTLY CLOUDY SKIES. FRIDAY INTO FRIDAY NIGHT...MDLS WERE IN REASONABLE AGREEMENT THAT A SHORTWAVE TROUGH MOVING THROUGH THE AREA COULD SUPPORT SCT MAINLY INLAND DIURNAL SHOWERS. WITH 700-500 MB LAPSE RATES NEAR 7 C/KM (500 MB TEMPS AROUND -19C) AND MLCAPE VALUES INTO THE 400-600 J/KG RANGE...SOME SHALLOW TSRA MAY ALSO BE POSSIBLE. ANY SHRA/TSRA SHOULD DIMINISH QUICKLY IN THE EVENING WITH THE LOSS OF DAYTIME HEATING. SATURDAY AND SATURDAY NIGHT...MODELS HAVE TRENDED WEAKER WITH THE SHORTWAVE MOVING THROUGH THE REGION THAT WOULD SUPPORT PCPN. HOWEVER...SCT SHRA AND A FEW TSRA REMAINS POSSIBLE...ESPECIALLY DURING THE AFTERNOON. TEMPS WILL REMAIN AT OR SLIGHTLY BELOW SEASONAL AVERAGES IN THE UPPER 60S AND LOWER 70S. SUNDAY THROUGH TUESDAY...A BLOCKING RIDGE BUILDING FROM THE WESTERN ATLANTIC TO SOUTHERN GREENLAND WILL RESULT IN PATTERN AMPLIFICATION UPSTREAM OVER NOAM ALLOWING A MID LEVEL LOW TO SINK FROM HUDSON BAY TOWARD THE ERN GREAT LAKES. NRLY MID AND LOW LEVEL FLOW BEHIND THE ERN LAKE LOW WILL BRING COOL WEATHER...ESPECIALLY NEAR LAKE SUPERIOR ALONG WITH GENERALLY DRY CONDITIONS. && .AVIATION...(FOR THE 18Z TAFS THROUGH 18Z THURSDAY AFTERNOON) ISSUED AT 136 PM EDT WED JUN 20 2012 A COLD FRONT WILL PASS THROUGH THE CWA THIS AFTERNOON INTO THIS EVENING...BRINGING SHOWERS AND THUNDERSTORMS INTO ALL THREE TAF SITES. AS OF 18Z...A STRONG LINE THUNDERSTORMS WAS MOVING ACROSS WESTERN LAKE SUPERIOR. UNCERTAINTY EXISTS AS TO HOW FAR THE VISIBILITIES WILL DROP WITHIN THE THUNDERSTORMS AND OVERNIGHT...AS THERE IS A POTENTIAL FOR FOG DEVELOPMENT AS WELL. THINK THAT THE GUSTIER WINDS OUT OF THE WEST /ONCE THE FRONT PASSES/ WILL KEEP VISIBILITIES IN CHECK...THEREFORE HAVE KEPT ALL THREE SITES IFR OR HIGHER. WINDS WILL SWITCH FROM THE SOUTH-SOUTHWEST TO THE WEST AS THE FRONT PASSES AROUND 00Z IN THE WESTERN U.P. AND AROUND 5Z FOR CENTRAL AREAS/KSAW/. SOME OF THE THUNDERSTORMS MAY PRODUCE SEVERE WIND GUSTS AS HIGH AS 60 KTS...HOWEVER CONFIDENCE IS NOT HIGH ENOUGH TO PLACE THEM IN THE FORECAST. && .MARINE...(FOR THE 4 AM LAKE SUPERIOR FORECAST ISSUANCE) ISSUED AT 513 AM EDT WED JUN 20 2012 LOW PRESSURE STRETCHING FROM NE MINNESOTA TO NE NEBRASKA WILL SWING ACROSS W LS AND INTO S CENTRAL ONTARIO THIS EVENING...AND E LS OVERNIGHT. EXPECT PATCHY TO AREAS OF FOG TO CONTINUE IN OUR MOIST ENVIRONMENT...ALONG WITH GUSTY WINDS FROM SHOWERS AND TS SLIDING ACROSS LS. WEST WINDS WILL INCREASE INTO THE 15 TO 25 KNOT RANGE THURSDAY BEHIND THE COLD FRONT. THE WINDS AND DRY ADVECTION WILL SCOUR OUT ANY REMAINING FOG BY THU AFTERNOON. AS HIGH PRES BUILDS INTO THE AREA THU NIGHT INTO FRIDAY WINDS WILL DIMINISH. GENERALLY LIGHT WINDS WILL THEN PREVAIL THROUGH THE WEEKEND. && .MQT WATCHES/WARNINGS/ADVISORIES... UPPER MICHIGAN... NONE. LAKE SUPERIOR... NONE. LAKE MICHIGAN... NONE. && SHORT TERM...KF LONG TERM...JLB AVIATION...MCB MARINE...KF/JLB
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MARQUETTE MI 530 AM EDT WED JUN 20 2012 MIZ001>007-009>014-084-085-211200- KEWEENAW-ONTONAGON-NORTHERN HOUGHTON-BARAGA-MARQUETTE-ALGER-LUCE- GOGEBIC-IRON-DICKINSON-MENOMINEE-DELTA-SOUTHERN SCHOOLCRAFT- SOUTHERN HOUGHTON-NORTHERN SCHOOLCRAFT- 530 AM EDT WED JUN 20 2012 /430 AM CDT WED JUN 20 2012/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN UPPER MICHIGAN AND CENTRAL UPPER MICHIGAN. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS ARE LIKELY TODAY WEST AND ACROSS WEST AND CENTRAL UPPER MICHIGAN TONIGHT. SOME STORMS COULD PRODUCE SEVERE WIND GUSTS AND SMALL HAIL. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THUNDERSTORMS ARE ALSO POSSIBLE EARLY THURSDAY EAST OF A LINE FROM GRAND MARAIS TO MANISTIQUE. THUNDERSTORMS ARE ALSO POSSIBLE FRIDAY AND AGAIN SATURDAY AND SATURDAY NIGHT. .SPOTTER INFORMATION STATEMENT... ANY REPORTS OF LARGE HAIL OR DAMAGING WINDS WOULD BE GREATLY APPRECIATED. LSZ162-240>251-263>267-211200- LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND PORTAGE MN BEYOND 5NM-SAXON HARBOR WI TO BLACK RIVER MI- BLACK RIVER TO ONTONAGON MI- ONTONAGON TO UPPER ENTRANCE OF PORTAGE CANAL MI- UPPER ENTRANCE OF PORTAGE CANAL TO EAGLE RIVER MI- EAGLE RIVER TO MANITOU ISLAND MI- MANITOU ISLAND TO POINT ISABELLE MI- POINT ISABELLE TO LOWER ENTRANCE OF PORTAGE CANAL MI- LOWER ENTRANCE OF PORTAGE CANAL TO HURON ISLANDS MI INCLUDING KEWEENAW AND HURON BAYS-HURON ISLANDS TO MARQUETTE MI- MARQUETTE TO MUNISING MI-MUNISING TO GRAND MARAIS MI- GRAND MARAIS TO WHITEFISH POINT MI- LAKE SUPERIOR FROM SAXON HARBOR WI TO UPPER ENTRANCE TO PORTAGE CANAL MI 5NM OFF SHORE TO THE US/CANADIAN BORDER INCLUDING ISLE ROYALE NATIONAL PARK- LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER- LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI BEYOND 5NM FROM SHORE- LAKE SUPERIOR EAST OF A LINE FROM MANITOU ISLAND TO MARQUETTE MI AND WEST OF A LINE FROM GRAND MARAIS MI TO THE US/CANADIAN BORDER BEYOND 5NM FROM SHORE- LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF SHORE TO THE US/CANADIAN BORDER- 530 AM EDT WED JUN 20 2012 /430 AM CDT WED JUN 20 2012/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN LAKE SUPERIOR...CENTRAL LAKE SUPERIOR AND WESTERN LAKE SUPERIOR. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS ARE LIKELY OVER WESTERN LAKE SUPERIOR TODAY AND ACROSS THE LAKE TONIGHT. SOME STORMS COULD PRODUCE SEVERE WIND GUSTS AND SMALL HAIL. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THUNDERSTORMS ARE POSSIBLE OVER EASTERN LAKE SUPERIOR EARLY THURSDAY. THERE IS A CHANCE FOR THUNDERSTORMS FRIDAY AND AGAIN SATURDAY AND SATURDAY NIGHT. .SPOTTER INFORMATION STATEMENT... ANY REPORTS OF LARGE HAIL OR WINDS OVER 35 KNOTS WOULD BE GREATLY APPRECIATED. LMZ221-248-250-211200- GREEN BAY NORTH OF LINE FROM CEDAR RIVER MI TO ROCK ISLAND PASSAGE-SEUL CHOIX POINT TO POINT DETOUR MI- 5NM EAST OF A LINE FROM FAIRPORT MI TO ROCK ISLAND PASSAGE- 530 AM EDT WED JUN 20 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT THERE IS A CHANCE FOR THUNDERSTORMS THIS AFTERNOON. THUNDERSTORMS ARE LIKELY TONIGHT. SOME STORMS COULD PRODUCE SEVERE WIND GUSTS AND SMALL HAIL. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THUNDERSTORMS ARE POSSIBLE FRIDAY AND AGAIN SATURDAY AND SATURDAY NIGHT. .SPOTTER INFORMATION STATEMENT... ANY REPORTS OF LARGE HAIL OR WINDS OVER 35 KNOTS WOULD BE GREATLY APPRECIATED. JLB
The Duluth radar (KDLH), 146 km away, was scanning. The volume nearest the first event began at 20:22 UTC.
1 thunderstorm wind. Local standard time, as filed.
A tree was reported down on a power line on Lake Road at Little Girls Point.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2012Every state in 2012This day in weather historyWarnings in Michigan, June 2012
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: 395835.