00 inches per hour produced localized flash flooding across southern Piscataquis county.
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 CAR wrote it up.
Thunderstorms with rainfall rates of 1.50 to 2.00 inches per hour produced localized flash flooding across southern Piscataquis 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 Jun 18, 6:36 PM EST, 4 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CARIBOU ME 736 PM EDT WED JUN 18 2008 .SYNOPSIS... A COOL AND WET WEATHER PATTERN IS EXPECTED TO CONTINUE THROUGH THE REMAINDER OF THE WEEK. PERSISTENT SHOWER ACTIVITY AND CLOUDY SKIES WILL CONTINUE AS A RESULT. HIGH TEMPERATURES WILL WARM SOMEWHAT WITH LIMITED SUNSHINE THIS WEEKEND...BUT THE CHANCE OF MOSTLY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS WILL CONTINUE. && .NEAR TERM /THROUGH THURSDAY/... UPDATED THE GRID/ZFP TO INCLUDE HVY RAFL W/ANY TSTMS. ISSUED FFW FOR SRN PISCATAQUIS COUNTIES AS RADAR ESTIMATES WERE CLOSING IN ON 3.5 INCHES IN ONE HOURS TIME. FFMP SHOWING SOME SMALLER BROOKS AND STREAMS FILLING UP RAPIDLY IN THIS AREA AS WELL. OTRW...NO OTHER CHGS ATTM. HAVE GENERATED NEAR TERM GRIDS WITH RUC13...HOWEVER HAVE MADE NUMEROUS MANUAL CHANGES TO POP AND WEATHER GRIDS TO BETTER BLEND CURRENT CONDITIONS WITH MODEL GUIDANCE. UPPER TEMPERATURE PROFILE VERY CONDUCIVE FOR HAIL WITH FREEZING LEVEL BELOW 9000 FEET. HAVE BEEN CLOSELY MONITORING CONVECTIVE CONDITIONS DURING THE DAY TODAY. THUNDERSTORMS OCCURRING EARLIER TODAY OVER LOWER MARITIME AIR MASS DIMINISHED AS MORNING PROGRESSED AND DYNAMIC SUPPORT DECREASED. PRIMARY FOCUS THIS EVENING WILL BE AVIATION. WITH MARITIME AIR MASS EXPECT CEILING TO DECREASE ALONG WITH VISIBILITY IN MANY PLACES. WILL KEEP HIGHEST POPS IN NORTHWEST AND MENTION THUNDER ALONG WITH HEAVY RAIN AND GUSTY WINDS IN WORDING. && .SHORT TERM /THURSDAY NIGHT/... MODELS CONTINUE TO SHOW SEVERAL S/WVS ROTATING AROUND A SLOWLY DISLODGING UPPER LOW FROM SRN QB PROV CAN. THIS WILL RESULT IN PERSISTENT LOW CLDNESS AND PERIODIC SHWRS/TSTMS. THE BEST CVRG AND QPF POTENTIAL OF CONVECTION WILL BE CONTINGENT ON WHETHER THE TIMING OF S/WV IMPULSES IS COINCIDENT WITH MAX HEATING IN THE LATE AFT AND ERLY EVE...AND WHETHER THERE IS ANY DAYTIME SUNSHINE. MODELS INDICATE THAT THE S/WV HELPING TO TRIGGER SHWR/TSTM ACTIVITY THU MAY ARRIVE BEFORE THE TIME OF MAX HEATING... PERHAPS LIMITING THE CAPE POTENTIAL FOR STRONGER THUNDERSTORMS WHILE THE S/WV FOR FRIS ACTIVITY APPEARS TO ARRIVE DURING THE TIME OF MX HEATING...BUT THE TIMING OF THESE S/WV FEATURES ON BOTH DAYS IS STILL NOT CERTAIN. IN ANY EVENT...WENT LIKELY POPS BOTH THU AND FRI AFT AND EVE ACROSS N AND W PTNS OF THE REGION AND HI CHC POPS ELSEWHERE WITH FCST QPF INDICATIVE OF THIS DISTRIBUTION. WITH THE MAIN UPPER TROF AXIS PASSING E OF THE FA BY SAT MORN... THERE IS A BETTER CHC OF PARTIAL CLRG ACROSS THE FA BY SAT AFT AS SFC WINDS SHIFT TO A MORE WRLY COMPONENT. ANY SCT TSTMS THAT FORM SAT AFT WILL BE MORE DRIVEN BY SFC BASED INSTABILITY RATHER THAN UPPER S/WV FEATURES. OTHERWISE...WE SLOWLY INCREASE HI TEMPS A FEW DEGREES EACH DAY ACROSS OUR FA WITH ANTICIPATION OF A LITTLE MORE SUNSHINE EACH SUCCESSIVE DAY...ALTHOUGH THIS TREND IS ALSO...BY NO MEANS CERTAIN. WITH RAIN MOISTENED AIR AND SRLY ATLC MARITIME MODIFIED SFC WINDS...WE OPTED TO GO WITH AREAS OF LATE NGT FOG TNGT THRU FRI NGT. && .LONG TERM /FRIDAY THROUGH WEDNESDAY/... IT APPEARS THERE WILL BE NO RELIEF FROM THE COOL AND UNSETTLED PATTERN THAT HAS SET UP SHOP OVER THE NORTHEAST UNITED STATES. COMPUTER MODEL GUIDANCE FROM MULTIPLE MODELS ARE IN VERY GOOD AGREEMENT ON THE PROGNOSIS OF AN AMPLIFIED LONG WAVE PATTERN OVER THE UNITED STATES. SPECIFICALLY...RIDGING IN THE NORTH ATLANTIC AND OVER THE MIDWEST MEANS A COOL TROFING PATTERN OVER THE EAST. DUE TO GOOD MODEL CONSENSUS THERE IS A HIGH DEGREE OF CONFIDENCE IN THE LONG RANGE FORECAST. POP FORECAST WILL HAVE CHANCES OF PRECIPITATION IN THE HIGH CHANCE CATEGORY. THE SHOWERY NATURE OF THE PRECIPITATION NECESSITATES CHANCE WORDING UNTIL MINOR IMPULSES IN THE FLOW CAN BE RESOLVED CLOSER IN. NEVERTHELESS...POPS WILL REMAIN ABOVE CLIMATE NORMALS FOR THIS TIME OF YEAR. OTHER WEATHER PARAMETERS WILL USE GMOS AS A STARTING POINT GIVEN LITTLE DISCREPANCY AMONG THE VARIOUS MODEL GUIDANCE. && .AVIATION /00Z THURSDAY THROUGH MONDAY/... NEAR TERM: EXPECT IFR/MVFR CONDITIONS RESULT OF CEILING/VISIBILITY. INTO THIS EVENING WITH MOIST MARINE LAYER IN PLACE. SHORT TERM: MSLY IFR OVRNGT AND ERLY MORNS AND MVFR LATE MORN AND AFT. HEAVIER SHWRS/TSTMS WILL ALSO LOWER CIGS AND/OR VSBYS TO IFR. && .MARINE... NEAR TERM: HAVE USE RUC13 FOR WIND...WILL REDUCE MODEL NUMBERS TO KEEP SPEEDS BELOW 10 KNOTS SINCE STRONG MARINE LAYER REMAINS IN PLACE. FOR WAVES: PRIMARY WAVE FIELD RESULTING FROM INCOMING SWELL...WILL KEEP HEIGHTS AT OR BELOW FEET. SHORT TERM: NO HDLNS ANTICIPATED THIS UPDATE. WENT WITH NAM12/GFS40 BLEND FOR WINDS AND AT OR BELOW WNA WW3 WV HT GUIDANCE...ESPECIALLY BELOW GUIDANCE OVR THE INNER WATERS ZONE. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...NONE. MARINE...NONE. && NEAR TERM...HEWITT/MIGNONE SHORT TERM...VJN LONG TERM...LERICOS AVIATION...HEWITT/MIGNONE MARINE...HEWITT/MIGNONE/VJN
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CARIBOU ME 833 AM EDT WED JUN 18 2008 MEZ001>006-010-011-015>017-029>032-191000- 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- 833 AM EDT WED JUN 18 2008 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 THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. ANZ050>052-191000- 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- 833 AM EDT WED JUN 18 2008 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...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
The Portland,ME radar (KGYX), 147 km away, was scanning. The volume nearest the first event began at 23:38 UTC.
2 flash flood. Local standard time, as filed.
Heavy thunderstorm rains caused the Packard Brook to overflow its banks...with the water covering portions of Route 150 south of Parkman.
Heavy thunderstorm rains washed out a portion of road at the intersection of Prospect and Elm streets.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maine in 2008Every state in 2008This day in weather historyWarnings in Maine, June 2008
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: 117387, 117388.