Thunderstorms developed during the late afternoon and evening hours of the 14th along a stalled frontal boundary. An isolated severe thunderstorm produced damaging winds across portions of southern Penobscot 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 CAR wrote it up.
Thunderstorms developed during the late afternoon and evening hours of the 14th along a stalled frontal boundary. An isolated severe thunderstorm produced damaging winds across portions of southern Penobscot 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 Caribou, ME wrote its last area forecast discussion before the first event at Jul 14, 4:30 PM EST, 10 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CARIBOU ME 530 PM EDT SAT JUL 14 2012 .SYNOPSIS... A RIDGE OF HIGH PRESSURE WILL REMAIN OVER THE AREA TONIGHT AND SUNDAY. A WEAK COLD FRONT WILL CROSS THE AREA MONDAY. A STRONGER COLD FRONT WILL MOVE THROUGH TUESDAY NIGHT. && .NEAR TERM /THROUGH SUNDAY/... UPDATED TO ADJUST POPS ACROSS WRN ZONES. MADE MINOR ADJUSTMENT TO TEMPERATURES...OTHERWISE PREVIOUS FORECAST REMAINS ON TRACK. TWO WEAK BOUNDARIES REMAIN ACROSS THE AREA THIS EVENING. ONE IS DOWNEAST AND THE OTHER ACROSS THE NORTH. A STRAY THUNDERSHOWER MAY OCCUR ALONG EITHER OF THESE BOUNDARIES EARLY THIS EVENING. OTHERWISE...TONIGHT WILL BE CLEAR TO PARTLY CLOUDY AND WARM AND HUMID. A VERY WEAK SHORTWAVE WILL APPROACH ON SUNDAY BRINGING CHANCES FOR SOME THUNDERSHOWERS. INITIALLY THE BEST CHANCE MAY BE ACROSS CENTRAL AREAS WHERE A RESIDUAL BOUNDARY MAY REMAIN BUT BY MID TO LATE AFTERNOON ENOUGH LIFT MAY SPREAD ACROSS THE REMAINDER OF THE REGION TO BRING CHANCES FOR THUNDERSTORMS THROUGHOUT THE AREA. CAPES ON SUNDAY RANGE FROM AROUND 800 TO 1200 ACROSS THE AREA. SUNDAY WILL BE WARM AND VERY HUMID OVER THE REGION WITH HIGHS IN THE UPPER 80S TO NEAR 90 AND DEW POINTS IN THE MID TO UPPER 60S. && .SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY/... ECMFW/GFS/NAM ARE IN REASONABLE AGREEMENT BRINGING A SHORTWAVE TROUGH ACROSS THE REGION SUNDAY NIGHT INTO MONDAY. ALTHOUGH THERE IS SOME DISAGREEMENT ON THE EXACT POSITION/STRENGTH OF THE SHORTWAVE...WITH THE ECMWF BEING THE FARTHEST SOUTH AND GFS THE FARTHEST NORTH WELL INTO SOUTHERN MAINE. LOOKING AT THE 310K ISENTROPIC SFC...ECMWF/GFS/NAM INDICATE THE FIRST ROUND OF PRECIP WHICH IS ASSOCIATED MORE CLOSELY WITH A CIRCULATION DEVELOPING ALONG THE TROUGH WILL AFFECT MAINLY SOUTHERN MAINE SUNDAY NIGHT. THE SECOND ROUND IS ASSOCIATED WITH A COLD FRONT WHICH WILL MOVE ACROSS ALL OF MAINE ON MONDAY. MODEST CAPE IS EXPECTED SUNDAY AND MONDAY...SO THUNDER AND POSSIBLY A FEW STRONG STORMS CAN BE EXPECTED. ILL DEFINED SHORTWAVE TRANSLATING THROUGH THE FLOW...WILL MOVE ACROSS THE REGION GENERALLY ON TUESDAY. UPPER LEVEL JET DYNAMICS ARE MORE FAVORABLE ON TUESDAY WITH NOSE OF A JET MAX LOCATED ACROSS THE STATE. HOWEVER THE COLD FRONT ASSOCIATED WITH THIS SYSTEM WILL LIKELY NOT MOVE THROUGH UNTIL WEDNESDAY. THE BETTER JET DYNAMICS LOOK TO BE OFFSET BY LACK OF CAPE ON TUESDAY. WILL HOLD ON TO MENTION OF THUNDER BUT THINK SHOWERS WILL DOMINATE. && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... COLD FRONT WILL PASS THROUGH TUESDAY NIGHT AND EARLY WEDNESDAY, LEAVING COOLER AND DRIER WEATHER FROM LATE WEDNESDAY THROUGH FRIDAY. IN FACT, HIGHS ON THURSDAY MAY STAY BELOW 70 OVER THE FAR NORTH. THE HEAT, HUMIDITY, AND RAIN CHANCES WILL GRADUALLY RETURN NEXT WEEKEND. MODELS IN VERY GOOD AGREEMENT. LOADED GMOS BUT MADE DOWNWARD ADJUSTMENT TO GMOS POPS POST FRONTAL FROM WEDNESDAY THROUGH FRIDAY. && .AVIATION /22Z SATURDAY THROUGH THURSDAY/... NEAR TERM: GENERALLY VFR CONDITIONS ARE EXPECTED TONIGHT AND SUNDAY. THE EXCEPTION WILL BE IN ANY PATCHY FOG LATE AT NIGHT OR EARLY SUNDAY MORNING AND ANY THUNDERSHOWERS SUNDAY AFTERNOON. SHORT TERM: IFR POSSIBLE SUNDAY NIGHT FOR KBGR/KBHB THAT MAY LINGER INTO MONDAY MORNING. OTHERWISE PREDOMINANT VFR EXCEPT IN THUNDERSTORMS REST OF MONDAY. PREDOMINANT VFR MONDAY NIGHT INTO TUESDAY WITH CONDITIONS DETERIORATING TUESDAY NIGHT. && .MARINE... NEAR TERM: WINDS AND SEAS ARE EXPECTED TO REMAIN BELOW SCA TONIGHT AND SUNDAY. HUMID AIR MOVING OVER THE WATER WILL LIKELY RESULT IN SOME FOG...ESPECIALLY UP TOWARD THE WASHINGTON COUNTY COAST. SHORT TERM: WINDS AND SEAS EXPECTED TO REMAIN BELOW SCA THROUGH TUESDAY. MAY BE AREAS OF FOG...MAINLY SUNDAY NIGHT INTO MONDAY AND AGAIN TUESDAY. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...NONE. MARINE...NONE. && UPDATE...NORTON NEAR TERM...BLOOMER SHORT TERM...RUNYAN LONG TERM...FOISY AVIATION...BLOOMER MARINE...BLOOMER/RUNYAN
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CARIBOU ME 314 AM EDT SAT JUL 14 2012 MEZ001-002-004>006-151100- NORTHWEST AROOSTOOK-NORTHEAST AROOSTOOK-NORTHERN PISCATAQUIS- NORTHERN PENOBSCOT-SOUTHEAST AROOSTOOK- 314 AM EDT SAT JUL 14 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL MAINE...NORTH CENTRAL MAINE AND NORTHERN MAINE. .DAY ONE...TODAY AND TONIGHT. SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON IN THE VICINITY OF A SLOW MOVING WARM FRONT. A FEW OF THESE STORMS COULD BE ACCOMPANIED BY GUSTY WINDS AND LOCALIZED HEAVY DOWNPOURS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. MEZ003-010-011-015>017-029>032-151100- NORTHERN SOMERSET-CENTRAL PISCATAQUIS-CENTRAL PENOBSCOT- SOUTHERN PENOBSCOT-INTERIOR HANCOCK-CENTRAL WASHINGTON- COASTAL HANCOCK-COASTAL WASHINGTON-SOUTHERN PISCATAQUIS- NORTHERN WASHINGTON- 314 AM EDT SAT JUL 14 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL MAINE...NORTH CENTRAL MAINE...SOUTHEAST MAINE AND WEST CENTRAL MAINE. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. ANZ050>052-151100- 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- 314 AM EDT SAT JUL 14 2012 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...SUNDAY THROUGH FRIDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. VJN
The Caribou radar (KCBW), 126 km away, was scanning. The volume nearest the first event began at 21:40 UTC.
1 thunderstorm wind. Local standard time, as filed.
Trees and power lines were toppled along portions of Route 155...Route 16 and Town Road by wind gusts estimated at 60 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maine in 2012Every state in 2012This day in weather historyWarnings in Maine, July 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: 400881.