An isolated thunderstorm along a departing cold front produced enough wind to bring down large limbs near Rockwood.
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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 GYX wrote it up.
An isolated thunderstorm along a departing cold front produced enough wind to bring down large limbs near Rockwood.
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 Jul 29, 11:17 PM EST, 2 hours 28 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 1217 AM EDT TUE JUL 30 2013 .SYNOPSIS... A COLD FRONT WILL MOVE OFFSHORE OVERNIGHT. AN UPPER LOW WILL CROSS NORTH OF THE REGION TUESDAY. A RIDGE OF HIGH PRESSURE WILL BRING A PLEASANT DAY WITH SUNNY SKIES FOR WEDNESDAY. ANOTHER DISTURBANCE WILL CROSS THE REGION FROM LATE THURSDAY INTO FRIDAY BRINGING SCATTERED SHOWERS AND POSSIBLE THUNDERSTORMS. UNSETTLED WEATHER WILL CONTINUE INTO EARLY NEXT WEEK AS A SERIES OF WEAK DISTURBANCES MOVE NORTH OF THE REGION WITH THE GREATEST THREAT OF SHOWERS IN THE MOUNTAINS. && .NEAR TERM /UNTIL 6 AM THIS MORNING/... 1215 AM...CONVECTION CONTINUES TO DIMINISH ACROSS THE AREA AS THE SURFACE FRONT DRIFTS OFFSHORE. I MADE ADJUSTMENTS TO 1ST PERIOD GRIDS BASED ON THE 04Z MESONET AS WELL AS LATEST SATELLITE AND RADAR TRENDS FOR THIS ESTF UPDATE. PREV DISC... 930 PM...LINE OF TSRA/SHRA...LKLY INDICATOR OF COLD FRONT...BUT PROB NO LONGER AT THE SFC...INSTEAD RUNNING ALONG THE TOP OF THE BOUNDARY LYR...OVER ERN PART OF CWA AND EXITING. A FEW SHRA POPPING UP BEHIND THIS LINE IN SE NH...BUT THESE SHOULD BE LIMITED TO A BRIEF PERIOD OF RAIN. SO...THE THREAT FOR ANY SIGNIF SHRA/TSRA IS DWINDLING. SINCE IT LOOKS LIKE MOST PLACES HAVE DECOUPLED...OR ARE STILL STUCK IN THE MARINE LYR...DRIER AIR BEHIND THE FRONT WILL REMAIN ALOFT THROUGH THE OVERNIGHT...AND WILL NOT MID DOWN UNTIL AFTER SUNRISE TUE. AS SUCH...HAVE RAISED OVERNIGHT MINS AND TDS A BIT. ALSO...WILL LKLY SEE SOME FOG ALONG THE COAST AND IN THE SHELTERED INLAND AREAS. ISOLATED FOG POSSIBLE, ESPECIALLY ALONG THE COAST WHERE MARINE FOG MAY LINGER AND IN THE CONNECTICUT VALLEY OVERNIGHT WHERE RADIATION FOG IS LIKELY. && .SHORT TERM /6 AM THIS MORNING THROUGH 6 AM WEDNESDAY/... AS THE UPPER LOW CROSSES NORTH OF THE AREA ON TUESDAY, A FEW SHOWERS WILL BE TRIGGERED, MAINLY IN THE MORNING. MID-LEVEL LAPSE RATES ARE MODEST AND BECOME EVEN LESS FAVORABLE IN THE AFTERNOON FOR TRIGGERING SHOWERS. RAIN CHANCES DIMINISH THROUGH THE DAY AND EVEN MORE SO OVERNIGHT. TEMPERATURES WILL TOP OUT NEAR 80 IN THE COASTAL PLAIN WITH A DOWNSLOPING WESTERLY WIND AND IN THE MID 70S IN THE MOUNTAINS. COOL TUESDAY NIGHT WITH LOWS FROM THE UPPER 40S NORTH TO THE UPPER 50S SOUTH. && .LONG TERM /WEDNESDAY THROUGH MONDAY/... NICE SUMMER WEATHER EXPECTED WEDNESDAY AS A WEAK RIDGE OF HIGH PRESSURE DRIFTS ACROSS THE REGION. AS THE RIDGE MOVES EAST THURSDAY...AN APPROACHING COLD FRONT WILL BRING AN INCREASING THREAT OF SHOWERS AND POSSIBLE THUNDERSTORMS LATE IN THE DAY THROUGH FRIDAY. THE FRONT WILL SLOWLY MOVE THROUGH THE REGION THURSDAY NIGHT AND FRIDAY MORNING. THINGS SHOULD START TO DRY OUT A BIT FRIDAY. HOWEVER...WITH AN UPPER LOW DROPPING SOUTHWARD INTO EASTERN CANADA AND THE LONG WAVE TROUGH OVER THE NORTHEASTERN U.S., THE THREAT OF SHOWERS WILL CONTINUE THROUGH THE WEEKEND AS WEAK DISTURBANCES ROTATE AROUND THE UPPER LOW. THE MOST CLOUDS AND THE GREATEST THREAT OF SHOWERS WILL BE IN THE MOUNTAINS. && .AVIATION /04Z TUESDAY THROUGH SATURDAY/... SHORT TERM...930 PM...TOUGH CALL ON FOG AND LOW STRATUS TONIGHT OUTSIDE OF THE USUAL FOGGY KLEB/KHIE...AS SFC HAS DECOUPLED BEFORE DRIER AIR COULD MIX DOWN BEHIND THE FRONT. THINKING SOME LIGHT FOG AND LOW STRATUS WILL MOVE INTO COASTAL TERMINALS...BUT THINKING IT MIGHT BE INTERMITTENT...AS WESTERLY FLOW ABV THE BOUNDARY SHOULD BE STRONG ENOUGH TO MIX THE TOP OF THE INVERSION...AT LEAST AT TIMES. EVERYWHERE SHOULD GO TO VFR BY 13-14Z TUE. LONG TERM...VFR CONDITIONS EXPECTED WEDNESDAY THROUGH MID-DAY THURSDAY. MVFR CONDITIONS SPREADING ACROSS THE REGION FOR LATE THURSDAY THROUGH FRIDAY WITH IFR CONDITIONS POSSIBLE THURSDAY NIGHT IN SHOWERS AND FOG. MAINLY VFR CONDITIONS SATURDAY WITH MVFR CONDITIONS POSSIBLE IN MOUNTAINS IN SHOWERS && .MARINE... SHORT TERM...ASIDE FROM SOME THUNDERSTORMS THAT MAY MOVE THROUGH THE COASTAL WATERS TONIGHT, CONDITIONS SHOULD BE RELATIVELY QUIESCENT. LONG TERM...WINDS AND SEAS EXPECTED TO BE BELOW SCA CRITERIA. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...NONE. NH...NONE. MARINE...NONE. && ES
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAY ME 319 PM EDT MON JUL 29 2013 MEZ007>009-012>014-018>028-NHZ001>010-013-014-301930- 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-INTERIOR ROCKINGHAM-COASTAL ROCKINGHAM- 319 PM EDT MON JUL 29 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MAINE...CENTRAL NEW HAMPSHIRE...NORTHERN NEW HAMPSHIRE AND SOUTHEASTERN NEW HAMPSHIRE. .DAY ONE...THIS AFTERNOON AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. ANZ150>154-301930- 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- 319 PM EDT MON JUL 29 2013 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...THIS AFTERNOON AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE GRAY ME
948 PM EDT MON JUL 29 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0450 PM HAIL 3 WNW WINDHAM 42.82N 71.36W
07/29/2013 M0.70 INCH ROCKINGHAM NH TRAINED SPOTTER
0450 PM HAIL WINDHAM 42.80N 71.30W
07/29/2013 M1.50 INCH ROCKINGHAM NH AMATEUR RADIO
TINE ESTIMATED FROM RADAR
0506 PM HAIL 1 N DERRY 42.89N 71.33W
07/29/2013 M1.00 INCH ROCKINGHAM NH TRAINED SPOTTER
ALSO ESTIMATED WINDS TO 60 MPH.
0801 PM TSTM WND DMG SKOWHEGAN 44.77N 69.72W
07/29/2013 SOMERSET ME TRAINED SPOTTER
TREE DOWN AND STRONG WINDS OCCURRING IN TOWN.
&&
EVENT NUMBER GYX1300272 GYX1300274 GYX1300273 GYX1300275
CEMPASPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 126 AM EDT TUE JUL 30 2013 MEZ009-300615- CENTRAL SOMERSET- 126 AM EDT TUE JUL 30 2013 ...STRONG THUNDERSTORMS WILL IMPACT SOMERSET COUNTY THROUGH 215 AM EDT... AT 124 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED OVER SOMERSET COUNTY...OR ABOUT 12 MILES SOUTH OF JACKMAN...MOVING NORTHEAST AT 20 MPH. THIS STRONG THUNDERSTORM WILL AFFECT AREAS AROUND THE ROUTE 201 CORRIDOR BETWEEN THE FORKS AND JACKMAN THROUGH 215 AM EDT. HAIL UP TO THREE QUARTER INCH IN DIAMETER...HEAVY DOWNPOURS...FREQUENT CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 35 TO 45 MPH CAN BE EXPECTED. LAT...LON 4566 6996 4546 6987 4537 7018 4550 7030 ES
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
205 AM EDT TUE JUL 30 2013
MEZ009-300645-
CENTRAL SOMERSET-
205 AM EDT TUE JUL 30 2013
...STRONG THUNDERSTORMS WILL IMPACT SOMERSET COUNTY THROUGH 245 AM
EDT...
AT 205 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF STRONG THUNDERSTORMS CENTERED 7 MILES SOUTHWEST OF
BRASSUA...OR ABOUT 14 MILES SOUTHEAST OF JACKMAN...MOVING NORTHEAST
AT 25 MPH. THIS CLUSTER OF STRONG THUNDERSTORMS WILL AFFECT AREAS IN
AND AROUND LONG POND...BRASSUA...MOOSEHEAD AND ROCKWOOD THROUGH 245
AM EDT.
HAIL UP TO THREE QUARTER INCH IN DIAMETER...HEAVY
DOWNPOURS...FREQUENT CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 45
TO 55 MPH CAN BE EXPECTED.
LAT...LON 4568 6976 4568 6974 4566 6971 4564 6969
4557 6971 4557 6972 4554 6977 4546 6974
4543 7002 4564 7011 4572 6980
ESSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 214 AM EDT TUE JUL 30 2013 MEZ009-300645- CENTRAL SOMERSET- 214 AM EDT TUE JUL 30 2013 ...STRONG THUNDERSTORMS WILL IMPACT SOMERSET COUNTY THROUGH 245 AM EDT... AT 213 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED OVER SOMERSET COUNTY...OR ABOUT 18 MILES SOUTH OF JACKMAN...MOVING NORTHEAST AT 25 MPH. THIS STRONG THUNDERSTORM WILL AFFECT AREAS NEAR THE ROUTE 201 CORRIDOR BETWEEN THE FORKS AND JACKMAN THROUGH 245 AM EDT. HAIL UP TO THREE QUARTER INCH IN DIAMETER...HEAVY DOWNPOURS...FREQUENT CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED. LAT...LON 4549 6996 4538 6988 4531 7012 4543 7019 ES
The Caribou radar (KCBW), 158 km away, was scanning. The volume nearest the first event began at 06:46 UTC.
1 thunderstorm wind. Local standard time, as filed.
A severe thunderstorm downed large limbs near Rockwood.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maine in 2013Every state in 2013This day in weather historyWarnings in Maine, July 2013
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: 469546.