Severe thunderstorms developed in advance of a cold front crossing the region producing large hail and damaging winds. reaching interior Downeast areas during the evening.
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 CAR wrote it up.
Severe thunderstorms developed in advance of a cold front crossing the region producing large hail and damaging winds. The initial thunderstorms formed across northern and northwest Maine during the afternoon...reaching interior Downeast areas during the evening.
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 Caribou, ME wrote its last area forecast discussion before the first event at Jun 1, 10:42 AM EST, 3 hours 3 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CARIBOU ME 1142 AM EDT WED JUN 1 2011 .SYNOPSIS... A WARM FRONT WILL CROSS THE REGION THIS MORNING. A STRONG COLD FRONT WILL CROSS THE AREA THIS AFTERNOON. MUCH COOLER AIR ARRIVES THURSDAY AND FRIDAY. && .NEAR TERM /THROUGH TONIGHT/... UPDATE...SHOWERS AND THUNDERSTORMS HAVE PRETTY MUCH EXITED THE FORECAST AREA...BUT EXPECT THINGS TO FIRE UP AGAIN BY MID AFTERNOON FROM NORTHWEST TO SOUTHEAST. HAVE UPDATED POPS AND WX TO MATCH CURRENT RADAR TRENDS. OTHERWISE NO OTHER CHANGES NEEDED. PREVIOUS DISCUSSION... A WARM FRONT WILL MOVE TO THE NORTH OF THE STATE THIS MORNING. AT THE SAME TIME A COLD FRONT WILL APPROACH FROM THE WEST. THIS FRONT IS EXPECT TO MOVE FROM NORTHWEST TO SOUTHEAST ACROSS THE FORECAST AREA LATE THIS MORNING INTO LATE THIS AFTERNOON. CONTINUE CONCERN FOR CONVECTION THIS LATER TODAY. REGION WILL BE IN WARM SECTOR WITH CAPE VALUES RUNNING BETWEEN 1500 AND 2000 JOULES ALONG WITH PLENTY OF SHEAR. GOOD POSSIBILITY OF ROTATING STORMS. TIMING OF PROBABILITY OF PRECIPITATION GRIDS MATCHES WELL WITH NEW GUIDANCE. WILL MAKE SOME ADJUSTMENTS INCREASING NUMBERS OVER MAXIMUM PROBABILITY AREAS. WILL CONTINUE WITH ENHANCED WORDING FOR HEAVY RAIN...SMALL HAIL AND GUSTY WINDS OVER AREAS WITH PROBABILITY OVER 60 PERCENT. HAVE ADJUSTED VISIBILITY TO MATCH TIMING OF PRECIPITATION AHEAD OF FRONT. FOR WINDS HAVE USED A BLEND OF THE NAM12 AND GMOS. TEMPERATURE AND DEWPOINT LOOK REASONABLE SO HAVE NOT MADE ANY CHANGES AFTER 12Z THIS MORNING BUT HAVE ADJUSTED CURRENT OBSERVATIONS WITH FORECAST NUMBERS LATER THIS MORNING. && .SHORT TERM /THURSDAY THROUGH FRIDAY/... UPPER LEVEL TROF FCST TO SWING ACROSS THE REGION W/LOW BECOMING CLOSED OFF IN THE UPPER LEVELS ACROSS THE MARITIMES BY FRIDAY. THIS WILL MEAN AN UNSETTLED PATTERN W/ON AND OFF SHOWERS AND LOTS OF CLOUDS INTO FRIDAY. THIS IS SUPPORTED BY BOTH THE GFS/NAM AND ECMWF. COLD AIR FOR THIS TIME OF YEAR FUNNELS INTO THE REGION. THEREFORE...DECIDED TO BRING MINS UP THURSDAY NIGHT GIVEN CLOUDS AND NW WINDS AOA 10 MPH. THIS MEANS TEMPERATURES BACK ACROSS THE SAINT JOHN VALLEY WILL BE IN THE UPPER 30S BUT WINDS WILL KEEP FROST AT A MINIMUM. MAX TEMPERATURES FOR BOTH THURSDAY AND FRIDAY WILL BE BELOW NORMAL FOR EARLY JUNE AS THE NORTHERN AREAS WILL SEE DAYTIME TEMPERATURES STRUGGLING TO GET INTO THE LOWER 60S W/MID AND UPPER 50S BACK ACROSS THE FAR W AND NW. CENTRAL AND DOWNEAST AREAS WILL BE SEE MID 60S. POPS FOR THURSDAY WERE KEPT IN THE 30-40% RANGE. FRIDAY/S POPS WERE KEPT BELOW 20% AND SITUATED MORE TO THE BORDER OF MAINE AND NEW BRUNSWICK. && .LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/... MAIN ADJUSTMENTS TO THE EXTENDED WERE FOR POPS AND TEMPERATURES. CWA SITS BETWEEN HIGH PRES TO THE NE AND SW WHILE A CLOSED UPPER LOW DROPS SE THROUGH THE MARITIMES. A BRIEF BREAK ON SATURDAY LOOKS POSSIBLE W/SOME SUNSHINE BUT THIS LOOKS TO BE SHORT-LIVED. THE ECMWF AND GFS NOW SHOW LOW PRES CLOSING OFF SE OF THE CWA W/PRECIP ROTATING BACK ACROSS THE NORTHERN AND EASTERN SECTIONS BY MONDAY AND LASTING INTO TUESDAY. ATTM...DECIDED TO PUSH BACK FROM THE GMOS POPS PER COORDINATION W/GYX AND BOX AS THE ECMWF KEEPS THE BULK OF PRECIP WELL N AND E OF THE CWA. THE CANADIAN HEMISPHERIC IS EVEN DRIER W/BRINGING HIGH PRES IN THROUGH MONDAY. THE ADJUSTMENT DONE TO THE TEMPERATURES WAS TO THE MINS AS GMOS LOOKED TOO COLD GIVEN MORE CLOUDS SHOWN BY BOTH THE GFS AND ECMWF. && .AVIATION /16Z WEDNESDAY THROUGH SUNDAY/... NEAR TERM: VFR CONDITIONS ARE EXPECTED EARLY TODAY THEN MVFR/IFR CONDITIONS AS A COLD FRONT MOVES THROUGH LATER THIS MORNING INTO THIS EVENING. VFR CONDITIONS LATER TONIGHT. SHORT TERM: VFR FOR KBGR AND KBHB THURSDAY WHILE THE NORTHERN TAF SITES LOOK TO BE IN MVFR. THINGS IMPROVE TO VFR THURSDAY NIGHT BUT THEN GO BACK TO MVFR FOR FRIDAY FOR KCAR/KPQI AND KHUL WHILE KBGR AND KBHB REMAIN VFR. CONDITIONS IMPROVING TO VFR FOR THE ENTIRE FORECAST AREA FRIDAY NIGHT INTO SATURDAY AS IT LOOKS ATTM. && .MARINE... NEAR TERM: HAVE USED A BLEND OF THE NAM12 AND GFS40 TO INITIALIZE THE WIND GRIDS. WILL ADJUST MODEL BLEND WIND SPEED LOWER DUE TO STABLE MARINE LAYER OVER COLDER SEAS SURFACE TEMPERATURE. FOR WAVES: HAVE INITIALIZED GRIDS WITH NAM/SWAN. WAVE GRAPHICS STILL SHOWING LARGE PERCENTAGE OF FETCH OVER COLDER SEA SURFACE TEMPERATURE SO SUSPECT WAVE MODEL WIND SPEED TO HIGH AND WILL THEREFORE LOWER WAVE HEIGHT 1 TO 2 FEET. WILL KEEP SCA IN PLACE. SHORT TERM: NO HEADLINES FORESEEN BEYOND THE POTENTIAL FOR HAZARDOUS SEAS EARLY THURSDAY AND THEN CONDITIONS IMPROVE. FOLLOWED THE WNAWAVE BEYOND FRIDAY. NAM12 AND GFS WAS USED FOR THE WINDS INTO FRIDAY AND LEANED W/ A GFS/GMOS BLEND WHICH KEPT WINDS BELOW SCA LEVELS. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...NONE. MARINE...SMALL CRAFT ADVISORY UNTIL 8 AM EDT THURSDAY FOR ANZ050>052. && NEAR TERM...HASTINGS/MIGNONE SHORT TERM...HEWITT LONG TERM...HEWITT AVIATION...HASTINGS/MIGNONE MARINE...HASTINGS/MIGNONE/HEWITT
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CARIBOU ME 359 AM EDT WED JUN 1 2011 MEZ001>006-010-011-015>017-029>032-020800- NORTHWEST AROOSTOOK-NORTHEAST AROOSTOOK-NORTHERN SOMERSET- NORTHERN PISCATAQUIS-NORTHERN PENOBSCOT-SOUTHEAST AROOSTOOK- CENTRAL PISCATAQUIS-CENTRAL PENOBSCOT-SOUTHERN PENOBSCOT- INTERIOR HANCOCK-CENTRAL WASHINGTON-COASTAL HANCOCK- COASTAL WASHINGTON-SOUTHERN PISCATAQUIS-NORTHERN WASHINGTON- 359 AM EDT WED JUN 1 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL MAINE...NORTH CENTRAL MAINE...NORTHERN MAINE...SOUTHEAST MAINE AND WEST CENTRAL MAINE. .DAY ONE...TODAY AND TONIGHT. THERE IS POTENTIAL FOR THUNDERSTORMS TO DEVELOP TODAY WITH SOME STORMS POSSIBLY BECOMING SEVERE. THE MAIN THREAT APPEARS TO BE STRONG GUSTY WINDS AND LARGE HAIL. THERE IS THE POSSIBILITY THAT A FEW STORMS COULD HAVE ROTATION. AT THIS TIME...THE AREAS TO BE AFFECTED INCLUDE NORTHERN...WESTERN AND CENTRAL MAINE. STAY FOR THE LATEST UPDATES ON THIS POSSIBLE EVENT. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THROUGH THIS EVENING. ANZ050>052-020800- COASTAL WATERS FROM EASTPORT ME TO SCHOODIC POINT ME OUT 25 NM- COASTAL WATERS FROM SCHOODIC POINT ME TO STONINGTON ME OUT 25 NM- INTRACOASTAL WATERS FROM SCHOODIC POINT ME TO STONINGTON ME- 359 AM EDT WED JUN 1 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED. HEWITT/MIGNONE
The Caribou radar (KCBW), 151 km away, was scanning. The volume nearest the first event began at 18:43 UTC.
10 thunderstorm wind, 6 hail. Local standard time, as filed.
A tree was toppled on to a driveway by wind gusts estimated at 60 mph.
Hail covered the ground at Indian Pond.
A tree was toppled on to power lines by wind gusts estimated at 60 mph.
Trees were damaged by wind gusts estimated at 60 mph.
A large tree was toppled on to a road in New Canada by wind gusts estimated at 60 mph.
A tree was toppled on Route 11 by wind gusts estimated at 60 mph.
Wind gusts were estimated at 60 mph.
Large trees were toppled by wind gusts estimated at 65 mph.
Large trees were toppled by wind gusts estimated at 65 mph.
A large tree was toppled on Bane Road by wind gusts estimated at 60 mph.
Trees and power lines were toppled on Cider Hill Road by wind gusts estimated at 65 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maine in 2011Every state in 2011This day in weather historyWarnings in Maine, June 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: 322995, 322996, 322999, 323001, 323004, 323007, 323010, 323012, 323015, 323016, 323017, 323018, 323019, 323021, 323022, 323023.