A cold front dropping south through the region was the focus for afternoon showers and thunderstorms. One isolated cell produced wind damage in Ossipee.
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 GYX wrote it up.
A cold front dropping south through the region was the focus for afternoon showers and thunderstorms. One isolated cell produced wind damage in Ossipee.
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 Gray, ME wrote its last area forecast discussion before the first event at Sep 3, 8:35 AM EST, 4 hours 41 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 935 AM EDT THU SEP 3 2015 .SYNOPSIS... A COLD FRONT WILL DROP SOUTH THROUGH THE REGION TODAY AND WILL PUSH OFFSHORE THIS EVENING. HIGH PRESSURE WILL BUILD SOUTH FROM CANADA FRIDAY THROUGH SATURDAY. HIGH PRESSURE WILL SHIFT OFFSHORE SATURDAY NIGHT AND WILL REMAIN ANCHORED OFF THE COAST INTO MIDWEEK AND ALLOW FOR JULY-LIKE WEATHER SUNDAY INTO WEDNESDAY. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... 930 AM UPDATE: A FEW LIGHT SHOWERS MOVING THROUGH NORTHERN NH AT THIS TIME OTHERWISE ONLY SOME CLOUDS ASSOCIATED WITH A COLD FRONT THAT IS DROPPING SOUTH ACROSS THE REGION. WITH SOME DIURNAL HEATING LAPSE RATES SHOULD SUFFICE IN DEVELOPING SCATTERED SHOWERS AND EVEN AN ISOLATED TSTORM OR TWO DURING THE AFTERNOON. SO WITH THIS THINKING FEELING IS TO LEAVE THE POPS IN PLACE AS PER PREVIOUS FORECAST. ONLY MINOR TWEAKS THAT WERE MADE WAS THE CLOUD GRIDS TO INDICATE A LITTLE MORE SUN FOR THE REST OF THE MORNING OVER SOUTHERN AREAS AND ALSO ADJUSMTENTS TO TEMPERATURE GRIDS ACCOUNTING FOR A SLOWER WARMING THIS MORNING OVER NORTHERN/CENTRAL AREAS OF FA WHERE THERE WERE CLOUDS. PREVIOUS DISCUSSION: WEAK COLD FRONT DROPPING SOUTH FROM CANADA PRODUCING SOME ISOLATED CONVECTION EARLY THIS MORNING ACROSS NORTHERN NEW YORK BUT THIS ACTIVITY QUICKLY DIMINISHING AS IT HEADS INTO NORTHERN ZONES. THIS BOUNDARY WILL CONTINUE TO SAG SOUTH THROUGH THE MORNING HOURS PRODUCING A FEW SHOWERS AND EXPECT CONVECTION TO REDEVELOP ACROSS CENTRAL AND SOUTH PORTIONS OF NEW HAMPSHIRE AND SOUTHWEST MAINE AS HEATING PICKS UP LATER TODAY. SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE INTO THE EARLY EVENING IN SOUTHERN ZONES BEFORE DIMINISHING WITH LOSS OF HEATING. HIGH TEMPS WILL RANGE FROM THE UPPER 70S NORTH TO THE UPPER 80S SOUTH. && .SHORT TERM /6 PM THIS EVENING THROUGH 6 PM FRIDAY/... EXPECT CLOUDS TO PERSIST ACROSS SOUTHWEST ZONES THROUGH MUCH OF THE NIGHT ALONG WITH A FEW WIDELY SCATTERED SHOWERS BEFORE MIDNIGHT. REMAINDER OF THE FORECAST AREA SHOULD SEE CLEARING SKIES AS HIGH PRESSURE BUILDS IN FROM THE NORTH. LOWS WILL RANGE FROM THE UPPER 40S TO MID 50S NORTH AND UPPER 50S TO MID 60S SOUTH. SKIES WILL GRADUALLY CLEAR ACROSS SOUTHERN NEW HAMPSHIRE ON FRIDAY AS HIGH PRESSURE CONTINUES TO BUILD IN FROM THE NORTH. WILL SEE A MUCH COOLER AND LESS HUMID DAY WITH HIGHS RANGING THROUGH THE 70S. && .LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/... HIGH PRESSURE WILL BE CENTERED OVERHEAD FRIDAY NIGHT. CLEAR AND CALM CONDITIONS ARE EXPECTED. THIS SHOULD LEAD TO PLENTY OF LOCALLY DENSE VALLEY FOG. THE HIGH MOVES OFF TO THE SOUTH DURING THE DAY ON SATURDAY ALLOWING FOR THE START OF ANOTHER WARMING TREND. WEST TO SOUTHWEST FLOW AROUND THE HIGH WILL PERSIST THROUGH AT LEAST TUESDAY AND LIKELY ALLOW FOR TEMPERATURES WELL ABOVE NORMAL SUNDAY THROUGH TUESDAY. HIGHS IN THE LOWER 90S WILL BE POSSIBLE IN SPOTS MONDAY AND TUESDAY. THIS HEAT MAY VERY WELL LAST INTO WEDNESDAY BEFORE A COLD FRONT POSSIBLY MOVES IN AND COOLS US OFF. CHANCES FOR PRECIPITATION SATURDAY THROUGH WEDNESDAY LOOK VERY LOW...WITH PERHAPS A FEW SHOWERS AND THUNDERSTORMS POSSIBLE ACROSS THE MOUNTAINS BY TUESDAY OR WEDNESDAY. && .AVIATION /14Z THURSDAY THROUGH MONDAY/... SHORT TERM...AREAS OF IFR/LIFR CIGS/VSBY IN MORNING VALLEY FOG...OTHERWISE VFR. LONG TERM...LOCALLY DENSE LATE NIGHT/EARLY MORNING VALLEY FOG LIKELY FRIDAY NIGHT THROUGH EARLY NEXT WEEK. OTHERWISE...MAINLY VFR WITH HIGH PRESSURE IN CONTROL. && .MARINE... SHORT TERM...BRIEF PERIOD OF NORTHEASTERLY SCA WINDS MAY DEVELOP OVERNIGHT TONIGHT BEFORE DROPPING OFF FRIDAY MORNING. THIS MAY ALLOW SEAS TO BUILD CLOSE TO 5 FT...ESPECIALLY ACROSS SOUTHERN MARINE ZONES. LONG TERM...HIGH PRESSURE WILL BE IN CONTROL FRIDAY NIGHT THROUGH EARLY NEXT WEEK ALLOWING FOR SUB-SCA CONDITIONS. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...NONE. NH...NONE. MARINE...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAY ME 312 AM EDT THU SEP 3 2015 MEZ007>009-012>014-018>028-NHZ001>015-040715- NORTHERN OXFORD-NORTHERN FRANKLIN-CENTRAL SOMERSET-SOUTHERN OXFORD- SOUTHERN FRANKLIN-SOUTHERN SOMERSET-INTERIOR YORK- INTERIOR CUMBERLAND-ANDROSCOGGIN-KENNEBEC-INTERIOR WALDO- COASTAL YORK-COASTAL CUMBERLAND-SAGADAHOC-LINCOLN-KNOX-COASTAL WALDO- NORTHERN COOS-SOUTHERN COOS-NORTHERN GRAFTON-NORTHERN CARROLL- SOUTHERN GRAFTON-SOUTHERN CARROLL-SULLIVAN-MERRIMACK-BELKNAP- STRAFFORD-CHESHIRE NH-EASTERN HILLSBOROUGH NH-INTERIOR ROCKINGHAM- COASTAL ROCKINGHAM-WESTERN AND CENTRAL HILLSBOROUGH NH- 312 AM EDT THU SEP 3 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MAINE...CENTRAL NEW HAMPSHIRE...NORTHERN NEW HAMPSHIRE...SOUTHEASTERN NEW HAMPSHIRE AND SOUTHERN NEW HAMPSHIRE. .DAY ONE...TODAY AND TONIGHT. SCATTERED THUNDERSTORMS ARE EXPECTED TODAY...AND A FEW COULD PRODUCE GUSTY WINDS AND TORRENTIAL DOWNPOURS. THE BEST CHANCE OF STORMS WILL BE ACROSS SOUTHERN MAINE AND SOUTHERN NEW HAMPSHIRE. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. ANZ150>154-040715- STONINGTON ME TO PORT CLYDE ME OUT TO 25 NM-PENOBSCOT BAY- PORT CLYDE ME TO CAPE ELIZABETH ME OUT TO 25 NM-CASCO BAY- CAPE ELIZABETH ME TO MERRIMACK RIVER MA OUT TO 25 NM- 312 AM EDT THU SEP 3 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CASCO BAY...PENOBSCOT BAY...THE COASTAL WATERS FROM CAPE ELIZABETH ME TO MERRIMACK RIVER MA...THE COASTAL WATERS FROM PORT CLYDE ME TO CAPE ELIZABETH ME AND THE COASTAL WATERS FROM STONINGTON ME TO PORT CLYDE ME. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
1210 PM EDT THU SEP 3 2015
MEZ007-012-NHZ002-031700-
NORTHERN OXFORD ME-SOUTHERN OXFORD ME-SOUTHERN COOS NH-
1210 PM EDT THU SEP 3 2015
THE NATIONAL WEATHER SERVICE IN GRAY MAINE HAS ISSUED A
* SPECIAL WEATHER STATEMENT FOR...
NORTHERN OXFORD COUNTY IN MAINE
SOUTHERN OXFORD COUNTY IN MAINE
SOUTHERN COOS COUNTY IN NEW HAMPSHIRE
* UNTIL 100 PM EDT
* AT 1210 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 15 MILES
NORTHWEST OF BETHEL TO LUNENBURG...MOVING TO THE SOUTHEAST AT 25
MPH.
* PEA SIZE HAIL AND WIND GUSTS OF 35 TO 45 MPH ARE EXPECTED WITH
THESE STORMS.
* LOCATIONS IMPACTED INCLUDE...
BETHEL...
LANCASTER...
BRYANT POND...
LOCKE MILLS...
AND PINKHAM NOTCH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT STAY IN THE OPEN OR SHELTER UNDER TREES WHEN LIGHTNING
THREATENS. SEEK SHELTER INSIDE A STURDY BUILDING OR IN A VEHICLE.
&&
LAT...LON 4441 7172 4444 7166 4448 7163 4449 7163
4449 7160 4450 7158 4458 7102 4435 7036
4427 7101 4428 7101 4428 7104 4426 7104
4424 7125 4423 7126 4422 7137
TIME...MOT...LOC 1609Z 301DEG 21KT 4454 7104 4446 7165
SHSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 1244 PM EDT THU SEP 3 2015 MEZ013-014-021-031730- SOUTHERN SOMERSET ME-KENNEBEC ME-SOUTHERN FRANKLIN ME- 1244 PM EDT THU SEP 3 2015 THE NATIONAL WEATHER SERVICE IN GRAY MAINE HAS ISSUED A * SPECIAL WEATHER STATEMENT FOR... SOUTHERN SOMERSET COUNTY IN MAINE KENNEBEC COUNTY IN MAINE SOUTHERN FRANKLIN COUNTY IN MAINE * UNTIL 130 PM EDT * AT 1243 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR MERCER...MOVING TO THE SOUTHEAST AT 25 MPH. * PEA SIZE HAIL AND WIND GUSTS OF 35 TO 45 MPH ARE EXPECTED WITH THIS STORM. * LOCATIONS IMPACTED INCLUDE... WATERVILLE... OAKLAND... CHINA... MERCER... AND BELGRADE. PRECAUTIONARY/PREPAREDNESS ACTIONS... PROLONGED HEAVY RAINFALL MAY CAUSE WATER TO FLOW OVER THE ROADWAY. DO NOT DRIVE YOUR VEHICLE WHERE THE ROAD HAS BECOME FLOODED. && LAT...LON 4465 6998 4471 6991 4461 6941 4422 6970 TIME...MOT...LOC 1640Z 314DEG 22KT 4463 6990 CEMPA
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 105 PM EDT THU SEP 3 2015 MEZ012-018-019-NHZ006-031745- INTERIOR CUMBERLAND ME-SOUTHERN OXFORD ME-INTERIOR YORK ME- SOUTHERN CARROLL NH- 105 PM EDT THU SEP 3 2015 THE NATIONAL WEATHER SERVICE IN GRAY MAINE HAS ISSUED A * SPECIAL WEATHER STATEMENT FOR... INTERIOR CUMBERLAND COUNTY IN MAINE SOUTHERN OXFORD COUNTY IN MAINE INTERIOR YORK COUNTY IN MAINE SOUTHERN CARROLL COUNTY IN NEW HAMPSHIRE * UNTIL 145 PM EDT * AT 105 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR KEZAR FALLS TO NEAR TAMWORTH...MOVING TO THE SOUTHEAST AT 20 MPH. * PEA SIZE HAIL AND WIND GUSTS OF 35 TO 45 MPH ARE EXPECTED WITH THESE STORMS. * LOCATIONS IMPACTED INCLUDE... OSSIPEE... CORNISH... TAMWORTH... EFFINGHAM... AND KEZAR FALLS. PRECAUTIONARY/PREPAREDNESS ACTIONS... PROLONGED HEAVY RAINFALL MAY CAUSE WATER TO FLOW OVER THE ROADWAY. DO NOT DRIVE YOUR VEHICLE WHERE THE ROAD HAS BECOME FLOODED. && LAT...LON 4369 7048 4361 7102 4388 7137 4392 7097 TIME...MOT...LOC 1704Z 297DEG 17KT 4385 7093 4381 7125 CEMPA
The Portland,ME radar (KGYX), 73 km away, was scanning. The volume nearest the first event began at 18:16 UTC.
1 thunderstorm wind. Local standard time, as filed.
A severe thunderstorm downed trees on Route 171 and Route 28 in Ossipee. Trees and wires were also reported down on Old Route 28.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New Hampshire in 2015Every state in 2015This day in weather historyWarnings in New Hampshire, September 2015
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: 602167.