Thunderstorms started producing severe weather as early as 9:50 am EDT, and by the end of the day there were numerous severe thunderstorms with reports of large hail and damaging winds across much of western Maine. The severe thunderstorm activity lasted into late 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 GYX wrote it up.
Thunderstorms started producing severe weather as early as 9:50 am EDT, and by the end of the day there were numerous severe thunderstorms with reports of large hail and damaging winds across much of western Maine. The severe thunderstorm activity lasted into late evening. There were many reports of private property damage due to strong winds downing trees and numerous reports of large hail, some up to half dollar size.
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 Aug 3, 8:12 AM EST, 38 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 912 AM EDT FRI AUG 3 2007 .SYNOPSIS... WARM HUMID AIR MASS CONTINUES TODAY COURTESY OF AN OFFSHORE BERMUDA HIGH PRESSURE SYSTEM. AN APPROACHING COLD FRONT WILL BRING THUNDERSTORMS SOME POSSIBLY SEVERE...THIS AFTERNOON AND THIS EVENING. THE COLD FRONT WILL MOVE OFFSHORE SATURDAY. HIGH PRESSURE WILL BUILD IN BEHIND THE FRONT SUNDAY. A WARM FRONT WILL APPROACH THE REGION FROM THE SOUTHWEST SUNDAY NIGHT AND MOVE THROUGH ON MONDAY. A TRAILING COLD FRONT WILL THEN CROSS THE AREA MONDAY NIGHT AND TUESDAY. A WEAK LOW PRESSURE SYSTEM WILL PASS SOUTH OF FORECAST AREA WEDNESDAY FOLLOWED BY HIGH PRESSURE ON THURSDAY. && .NEAR TERM /UNTIL 10 AM THIS MORNING/... CURRENT WX WILL PERSIST THRU 10 AM. MAIN CONCERN IS STRONG TO SVR TSTMS MOVING NE ALONG THE CANADIAN BORDER. HAVE ISSUED A SPECIAL WX STATEMENT AND SVR TSTM WARNING FOR THIS CLUSTER OF STORMS WHICH ARE BOWING OUT AND ALSO HEADING FOR AN OUTFLOW BOUNDARY FROM OLD SVR TSTMS THAT MOVED THRU NRN MAINE EARLIER THIS MORNING. && .SHORT TERM /10 AM THIS MORNING THROUGH 6 AM SATURDAY/... HAVE UPDATED THE GRIDS AND ZONES TO BRING IN TSTMS A COUPLE HOURS EARLIER BASED ON LATEST RADAR TRENDS. CONT TO FCST POTENTIAL FOR SVR TSTMS TDA. SPC HAS MOST OF FA IN SVR WX THREAT TDA BUT FEEL THE SLGT RISK SHOULD COVER THE ENTIRE FA. BESIDES TSTMS TDA SHOULD SEE HOT AND HUMID WX WITH COASTAL SEA BREEZE KEEPING THOSE ZONES A FEW DEGREES COOLER. CDFNT SLOW TO MOVE THRU LATER TNGT. NO CHANGES MADE TO TNGTS FCST AT THIS TIME. && .LONG TERM /SATURDAY THROUGH THURSDAY/... HIGH PRESSURE WILL BUILD IN BEHIND THE FRONT AND WILL USHER IN DRIER WEATHER FOR SATURDAY AFTERNOON THROUGH SUNDAY. WARM MOIST AIR OVERRUNNING A WARM FRONTAL BOUNDARY APPROACHING THE FORECAST AREA FROM THE SOUTHWEST COULD BRING ANOTHER ROUND OF SHOWERS MONDAY INTO TUESDAY. A WEAK LOW PRESSURE SYSTEM PASSING SOUTH OF THE FORECAST AREA COULD BRING ANOTHER CHANCE OF SHOWERS ON WEDNESDAY. HIGH PRESSURE SHOULD FINALLY BUILD INTO THE AREA AGAIN ON THURSDAY BRINGING DRY WEATHER. && .AVIATION /13Z FRIDAY THROUGH TUESDAY/... SHORT TERM /13Z FRIDAY THROUGH TONIGHT/...VFR CONDITIONS WILL PREVAIL EXCEPT LWR CONDITIONS WITH ANY STRONG TO PSBLY SVR TSTMS TDA INTO THIS EVENING. AREAS OF F WILL FORM TNGT AND COULD LWR TAF SITES TO IFR OR LWR ESPECIALLY KLEB AND KCON. && .MARINE... SHORT TERM /TODAY THROUGH TONIGHT/...WINDS AND SEAS MAY APPROACH SCA LVLS THRU THIS EVENING AS SW WINDS INCREASE IN ADVANCE OF AN APPROACHING CDFNT. WINDS HAVE COME UP A BIT MORE THAN PREVIOUSLY FCST SO WILL UPDATE FCST TO COVER THIS. ALSO WILL DROP MENTION OF ANY EARLY MORNING FOG. LONG TERM...NO FLAGS ANTICIPATED. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...NONE. NH...NONE. MARINE...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAY ME 327 AM EDT FRI AUG 3 2007 MEZ007>009-012>014-NHZ001>005-007-041000- NORTHERN OXFORD-NORTHERN FRANKLIN-CENTRAL SOMERSET-SOUTHERN OXFORD- SOUTHERN FRANKLIN-SOUTHERN SOMERSET-NORTHERN COOS-SOUTHERN COOS- NORTHERN GRAFTON-NORTHERN CARROLL-SOUTHERN GRAFTON-SULLIVAN- 327 AM EDT FRI AUG 3 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MAINE...CENTRAL NEW HAMPSHIRE AND NORTHERN NEW HAMPSHIRE. .DAY ONE...TODAY AND TONIGHT SEVERE THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON. THE MAIN THREATS WILL BE DAMAGING WINDS AND FREQUENT LIGHTNING...HOWEVER...SOME LARGE HAIL COULD ALSO BE POSSIBLE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE NEEDED THIS AFTERNOON. SPOTTERS ARE ENCOURAGED TO CALL OR RADIO IN THEIR REPORTS. MEZ018-NHZ006-008>010-013-041000- INTERIOR YORK-SOUTHERN CARROLL-MERRIMACK-BELKNAP-STRAFFORD- INTERIOR ROCKINGHAM- 327 AM EDT FRI AUG 3 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MAINE...CENTRAL NEW HAMPSHIRE...NORTHERN NEW HAMPSHIRE AND SOUTHEASTERN NEW HAMPSHIRE. .DAY ONE...TODAY AND TONIGHT SEVERE THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON. THE MAIN THREATS WILL BE DAMAGING WINDS AND FREQUENT LIGHTNING...HOWEVER...SOME LARGE HAIL COULD ALSO BE POSSIBLE. ALSO...HEAT INDEXES WILL APPROACH 100 TODAY. KEEP IN MIND THESE HEAT SAFETY TIPS...LIMIT OUTDOOR ACTIVITIES IF POSSIBLE...DRINK LOTS OF WATER OR NON-ALCOHOLIC BEVERAGES...WEAR LIGHT COLORED OR LIGHT WEIGHT CLOTHES...AND IF POSSIBLE...SPEND MORE TIME IN AIR CONDITIONED OR WELL VENTILATED PLACES. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE NEEDED THIS AFTERNOON. SPOTTERS ARE ENCOURAGED TO CALL OR RADIO IN THEIR REPORTS. ANZ150-MEZ019>028-NHZ014-041000- STONINGTON ME TO MERRIMACK RIVER MA OUT TO 25 NM-INTERIOR CUMBERLAND- ANDROSCOGGIN-KENNEBEC-INTERIOR WALDO-COASTAL YORK-COASTAL CUMBERLAND- SAGADAHOC-LINCOLN-KNOX-COASTAL WALDO-COASTAL ROCKINGHAM- 327 AM EDT FRI AUG 3 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MAINE...SOUTHEASTERN NEW HAMPSHIRE AND THE COASTAL WATERS FROM STONINGTON ME TO THE MERRIMACK RIVER MA. .DAY ONE...TODAY AND TONIGHT SEVERE THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON. THE MAIN THREATS WILL BE DAMAGING WINDS AND FREQUENT LIGHTNING...HOWEVER...SOME LARGE HAIL COULD ALSO BE POSSIBLE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE NEEDED THIS AFTERNOON. SPOTTERS ARE ENCOURAGED TO CALL OR RADIO IN THEIR REPORTS.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 820 AM EDT FRI AUG 3 2007 MEZ007>009-NHZ001-031345- CENTRAL SOMERSET-NORTHERN COOS-NORTHERN FRANKLIN-NORTHERN OXFORD- 820 AM EDT FRI AUG 3 2007 ...STRONG THUNDERSTORMS WILL IMPACT NORTHERN OXFORD COUNTY...NORTH CENTRAL SOMERSET COUNTY...NORTHERN FRANKLIN COUNTY AND NORTHERN COOS COUNTY THROUGH 10 AM. AT 820 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A CLUSTER OF STRONG THUNDERSTORMS ALONG THE VERMONT CANADIAN BORDER ...MOVING TO THE NORTHEAST AT 35 MPH. THIS CLUSTER OF STRONG THUNDERSTORMS WILL AFFECT FAR NORTHERN NEW HAMPSHIRE AND PORTIONS OF THE WESTERN MAINE MOUNTAINS AS THEY MOVE ALONG OR CLOSE TO THE CANADIAN BORDER THROUGH 10 AM. THIS INCLUDES PITTSBURG IN NEW HAMPSHIRE AND COBURN GORE AND JACKMAN IN MAINE. SMALL HAIL...HEAVY DOWNPOURS...FREQUENT CLOUD-TO-GROUND LIGHTNING AND WIND GUSTS UP TO 45 MPH ARE POSSIBLE. SJC
The Portland,ME radar (KGYX), 171 km away, was scanning. The volume nearest the first event began at 13:50 UTC.
16 thunderstorm wind, 15 hail, 1 funnel cloud. Local standard time, as filed.
Several 30-50 pound construction signs were blown down by a severe thunderstorm in Coburn Gore.
Numerous trees were blown down northwest of Jackman.
A funnel cloud was reported by emergency management near Jackman.
A severe thunderstorm downed trees in the vicinty of Jackman.
A severe thunderstorm downed numerous trees along route 201.
A severe thunderstorm downed several trees in Pittston Farm. A large pine snapped off and damaged a cabin roof.
A severe thunderstorm downed power lines just south of Jackman.
A severe thunderstorm blew down numerous trees near Jackman.
A severe thunderstorm produced .75 inch hail in Kingfield.
A severe thunderstorm downed trees and power lines in East Madison. Dozens of pine trees were snapped off. Both pines and hardwoods were uprooted. Multiple homes suffered roof damage. Several docks were overturned and boats tossed around on Wesserunsett Lake.
A severe thunderstorm blew down numerous trees West Ridge Road and Molutus Road and produced quarter inch hail. A woman was struck by lightning, but there was no information on possible injuries.
A severe thunderstorm downed trees and branches and produced marble-size hail in Athens.
A severe thunderstorm downed many hardwood trees (some maple trees that were 80 years old) in East Madison along Route 201.
A severe thunderstorm produced 1.25 inch hail in Rumford.
A severe thunderstorm produced 1 inch hail in Hartland.
A severe thunderstorm downed trees and power lines in Dixfield.
A severe thunderstorm downed trees and power lines south of Rumford.
A severe thunderstorm produced 1 inch hail in Peru.
A severe thunderstorm produced .88 inch hail in Dixfield.
A severe thunderstorm produced pea-sized hail and downed a large tree on old Route 4.
A severe thunderstorm produced .75 inch hail in Wilton.
|A severe thunderstorm produced 1 inch hail in Vienna. Mothball size hail fell for about 20 minutes.
A severe thunderstorm produced 1 inch hail in Shawmut.
A severe thunderstorm produced .75 inch hail in Waterville.
A severe thunderstorm produced 1 inch hail in Fairfield.
A severe thunderstorm produced .75 inch hail in Clinton.
A severe thunderstorm knocked down power lines along Route 100 between Clinton and Burnham.
A severe thunderstorm downed medium size branches in Burnham.
A severe thunderstorm produced .75 inch hail in Rumford.
A severe thunderstorm produced 1 inch hail in Rumford.
A severe thunderstorm produced 1 inch hail in Wilton.
A severe thunderstorm produced .75 inch hail in Freeport.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maine in 2007Every state in 2007This day in weather historyWarnings in Maine, August 2007
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: 54621, 54622, 54600, 54623, 54624, 54625, 54626, 54628, 54601, 54629, 54630, 54631, 54632, 54602, 54605, 54634, 54635, 54606, 54607, 54636, 54608, 54609, 54610, 54611, 54612, 54615, 54637, 54638, 54617, 54618, 54619, 54620.