Thunderstorms containing heavy rain developed across Piscataquis county during the late evening of the 6th. 5 inches per hour created localized flash flooding.
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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 containing heavy rain developed across Piscataquis county during the late evening of the 6th. Thunderstorms with rainfall rates of 1.0 to 1.5 inches per hour created localized flash flooding. The flash flooding washed out portions of several roads and driveways.
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 6, 1:44 PM EST, 7 hours 46 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CARIBOU ME 244 PM EDT MON JUL 6 2009 .SYNOPSIS... HIGH PRESSURE REMAINS JUST EAST OF THE REGION TONIGHT...WITH LOW PRESSURE TO THE WEST. THE LOW WILL SLOWLY APPROACH LATER TUESDAY...THEN CROSS THE REGION TUESDAY NIGHT THROUGH WEDNESDAY. HIGH PRESSURE WILL RETURN ACROSS THE REGION THURSDAY. && .NEAR TERM /THROUGH TONIGHT/... NEAR TERM MODELS ARE IN PRETTY GOOD AGREEMENT. A 500HPA CLOSED LOW NORTH OF THE GREAT LAKES WILL SLOWLY DRIFT SOUTHEAST THROUGH THE PERIOD. ITS ASSOCIATED SURFACE SYSTEM WILL REMAIN OVER THE CWA THROUGH THE NEAR TERM PERIOD. OVER THE PERIOD THIS LOW WILL MAINTAIN EARLY THEN SLOWLY FILL AS IT DRIFTS TOWARD THE GULF OF MAINE. LOADED GRIDS USING THE NAM12 FOR SKY...POP...MIN...DP...AND WINDS. LOADED CARWRF GRIDS FOR QPF. ADJUSTED POPS GRIDS TO BETTER BLEND WITH OUR SHORT TERM GRIDS. MAINTAINED THE CURRENT MARINE GRIDS THROUGH PERIOD FELL CURRENT FORECAST WAS STILL GOOD. && .SHORT TERM /TUESDAY THROUGH THURSDAY/... CURRENT MODEL RUNS HAVE SLOWED THE EASTWARD ADVANCE OF PRECIPITATION DURING TUESDAY...WITH MORE EMPHASIS ON RIDGING NORTH AND EAST OF THE REGION. COULD BE LEFTOVER SHOWERS FROM A WEAKENING CONVECTIVE COMPLEX ACROSS NORTHERN/WESTERN AREAS EARLY TUESDAY. OTHERWISE...GENERALLY EXPECT JUST A CHANCE OF SHOWERS ACROSS THE REGION TUESDAY WITH THE BEST CHANCES ACROSS WESTERN AREAS NEAREST THE APPROACHING SURFACE/UPPER LOW. THE LOW WILL MOVE EAST TUESDAY NIGHT ALONG WITH A WARM/OCCLUDED FRONT...WITH INCREASING RAIN CHANCES IN ADVANCE OF THE LOW AND FRONT. THE BEST CHANCES FOR RAIN TUESDAY NIGHT WILL EXTEND FROM NORTHWEST AREAS TO DOWNEAST PORTIONS OF THE FORECAST AREA. THE REMNANTS OF THE LOW WILL CROSS THE REGION WEDNESDAY WITH RAIN DURING THE MORNING TAPERING TO SHOWERS DURING THE AFTERNOON. THE MOST EXTENSIVE RAIN WEDNESDAY SHOULD OCCUR ACROSS CENTRAL/DOWNEAST AREAS. TOTAL RAINFALL TUESDAY NIGHT THROUGH WEDNESDAY STILL REMAINS UNCERTAIN...WITH MODELS NOT YET IN AGREEMENT REGARDING THE FOCUS OF WHERE THE HEAVIEST PRECIPITATION WILL OCCUR. SHOWERS COULD LINGER EARLY WEDNESDAY NIGHT WITH THE EXITING SURFACE LOW/UPPER TROF. CLOUD COVER SHOULD THEN BEGIN TO DIMINISH LATER WEDNESDAY NIGHT WITH HIGH PRESSURE STARTING TO BUILD ACROSS THE REGION. HIGH PRESSURE WILL CONTINUE TO BUILD ACROSS THE REGION THURSDAY BRINGING PARTLY/MOSTLY SUNNY SKIES. TEMPERATURES WILL BE AT BELOW NORMAL LEVELS TUESDAY/WEDNESDAY. TEMPERATURES WILL RETURN TO NEAR NORMAL...OR SLIGHTLY ABOVE NORMAL...LEVELS THURSDAY. && .LONG TERM /THURSDAY NIGHT THROUGH MONDAY/... ANOTHER UPPER LEVEL WAVE AND ASSOCIATED FRONTAL PASSAGE AT THE SURFACE SLATED TO MOVE INTO THE AREA AROUND SUNDAY TIME PERIOD. MODELS ARE NOT IN GOOD AGREEMENT ON TIMING...ALTHOUGH MOST PUSH THROUGH A WET COLD FRONT OF SOME SORT. THIS CONTINUES THE TREND OF MODEL INCONSISTENCY UNDER THIS SEEMINGLY NEVER ENDING WEATHER REGIME. IN ALL A LOW TO MODERATE CONFIDENCE LEVEL EXISTS FOR THE WEEKEND AND BEYOND. && .AVIATION /18Z MONDAY THROUGH SATURDAY/... MVFR CONDITIONS COULD OCCUR WITH SHOWERS TUESDAY. MVFR/IFR CONDITIONS ARE THEN EXPECTED TUESDAY NIGHT AND WEDNESDAY WITH RAIN AND FOG. GENERALLY MVFR CONDITIONS ARE EXPECTED EARLY WEDNESDAY NIGHT WITH LINGERING SHOWERS. CONDITIONS WILL THEN IMPROVE TO VFR LEVELS FOR LATER WEDNESDAY NIGHT THROUGH THURSDAY. && .MARINE... NEAR TERM: NO SCA EXPECTED. SHORT TERM: WINDS/SEAS ARE EXPECTED TO REMAIN BELOW SMALL CRAFT ADVISORY LEVELS TUESDAY THROUGH THURSDAY. VISIBILITIES WILL BE REDUCED IN SHOWERS...RAIN AND FOG TUESDAY INTO WEDNESDAY NIGHT. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...NONE. MARINE...NONE. && NEAR TERM...NORTON SHORT TERM...NORCROSS LONG TERM...LERICOS AVIATION...NORTON MARINE...NORTON/NORCROSS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CARIBOU ME 802 AM EDT MON JUL 6 2009 MEZ001>006-010-011-015>017-029>032-070830- 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- 802 AM EDT MON JUL 6 2009 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. 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. ANZ050>052-070830- 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- 802 AM EDT MON JUL 6 2009 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...TUESDAY THROUGH SUNDAY. 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 CARIBOU ME 546 PM EDT MON JUL 6 2009 MEZ010-015-031-070100- CENTRAL PISCATAQUIS-SOUTHERN PENOBSCOT-SOUTHERN PISCATAQUIS- INCLUDING THE CITIES OF...GREENVILLE...MONSON...BLANCHARD... BANGOR...BREWER...ORONO...OLD TOWN...DOVER-FOXCROFT...MILO... GUILFORD 546 PM EDT MON JUL 6 2009 ...SCATTERED THUNDERSTORMS MAY PRODUCE BRIEF LOCALIZED VERY HEAVY RAINFALL AND SMALL HAIL ACROSS WESTERN INTERIOR DOWNEAST AND CENTRAL MAINE HIGHLAND AREAS... DOPPLER RADAR INDICATES ISOLATED TO SCATTERED THUNDERSTORMS DEVELOPING OVER WESTERN INTERIOR DOWNEAST AND CENTRAL MAINE HIGHLAND AREAS BETWEEN BANGOR AND GREENVILLE. BRIEF VERY HEAVY DOWNPOURS...GUSTY WINDS... SMALL HAIL AND DEADLY LIGHTNING MAY ACCOMPANY ANY STORM INTO THE EARLY EVENING HOURS. VJN
The Caribou radar (KCBW), 148 km away, was scanning. The volume nearest the first event began at 02:27 UTC.
5 flash flood. Local standard time, as filed.
Thunderstorms containing rainfall rates of 1.0 to 1.5 inches per hour caused flash flooding. A portion of Elliotsville Road was washed out near Willamantic.
Thunderstorms containing rainfall rates of 1.0 to 1.5 inches per hour caused flash flooding. Several driveways were washed out around Piper Pond.
Thunderstorms containing rainfall rates of 1.0 to 1.5 inches per hour caused flash flooding. Several driveways were washed out along Kingsbury Road and Route 16.
Thunderstorms containing rainfall rates of 1.0 to 1.5 inches per hour caused flash flooding. The flash flooding damaged portions of Gales Road near the town of Abbot.
Thunderstorms containing rainfall rates of 1.0 to 1.5 inches per hour caused flash flooding. The flash flooding washed out nearly 0.7 of a mile of Blanchard Mountain Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maine in 2009Every state in 2009This day in weather historyWarnings in Maine, July 2009
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: 186533, 186534, 186537, 186539, 186541.