733
FXUS61 KCAR 060619
AFDCAR
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CARIBOU ME
219 AM EDT SAT SEP 6 2025
SYNOPSIS
A COLD FRONT WILL SLOWLY PRESS INTO THE REGION TODAY AS A WAVE OF
LOW PRESSURE TRACKS NORTHEAST ALONG THE FRONT. THE COLD FRONT WILL
CONTINUE OFFSHORE TONIGHT INTO SUNDAY. HIGH PRESSURE WILL BUILD IN
FROM THE WEST ON MONDAY...CREST OVER THE AREA TUESDAY...THEN MOVE
EAST OF THE REGION WEDNESDAY.
NEAR TERM /THROUGH SUNDAY/
A COLD FRONT WILL SLOWLY PRESS INTO THE AREA TODAY AS A CORRIDOR OF
MOISTURE SUPPORTED BY A SHALLOW FAST MOVING SHORTWAVE SLIDES
NORTHEAST ALONG THE FRONT INTO OUR AREA. VERY MOIST AIR WILL ADVECT
NORTH INTO THIS FRONTAL BOUNDARY WITH PWATS REACHING CLOSE TO 2
INCHES ACROSS SOUTHERN AREAS AND 1.5 INCHES OVER THE NORTH BY THIS
AFTERNOON. LIFT ALONG THIS FRONT WILL BE SUPPORTED BY THE
APPROACHING SHORTWAVE, A RIGHT REAR JET ENTRANCE REGION TO OUR
NORTH, AND FRONTAL CONVERGENCE. THIS WILL PRODUCE A NARROW BAND OF
MODERATE TO HEAVY RAIN EXTENDING FROM THE WESTERN HIGHLANDS
NORTHEAST INTO EAST CENTRAL PARTS OF OUR AREA WITH LIGHT TO MODERATE
RAIN NORTH AND SOUTH OF THIS BAND. SOME THUNDERSTORMS WILL BE
POSSIBLE ALONG THE FRONT. INSTABILITY IS HIGHEST SOUTHWEST OF OUR
AREA WITH THE AIR BECOMING A BIT MORE STABLE IN THE MARINE LAYER
UP IN OUR AREA. HOWEVER, THUNDERSTORMS WITH ISOLATED HEAVY RAIN
AND GUSTY WINDS MAY STRAY INTO OUR REGION SUPPORTED BY THE HIGH
MOISTURE CONTENT AND MODEST SHEAR.
THE SHORTWAVE AND BAND OF HEAVY RAIN WILL QUICKLY LIFT AWAY TO THE
NORTHEAST TONIGHT AS THE FRONT VERY SLOWLY CONTINUES TO THE SOUTH.
THIS WILL ALLOW RAIN TO TAPER OFF TO SHOWERS WITH THE SKY REMAINING
MOSTLY CLOUDY.
A WEAK SECONDARY SHORTWAVE WILL SLIDE NORTHEAST ALONG THE FRONT ON
SUNDAY BRINGING ANOTHER PERIOD OF RAIN TO THE DOWNEAST REGION. THE
NORTH WILL REMAIN MOSTLY CLOUDY. AN ADDITIONAL QUARTER INCH OF RAIN
IS POSSIBLE DOWNEAST ALONG THE COAST. THIS SECONDARY SHORTWAVE WILL
QUICKLY SLIDE AWAY TO THE NORTHEAST LATE SUNDAY ALLOWING RAIN TO
TAPER OFF AS THE FRONT CONTINUES OFF THE COAST.
SHORT TERM /SUNDAY NIGHT THROUGH MONDAY NIGHT/
SUNDAY NIGHT WILL FEATURE DECREASING CLOUDS AS LOW PRESSURE CONTINUES
TO EXIT THROUGH THE MARITIMES AND HIGH PRESSURE BEGINS TO BUILD
IN FROM THE WEST. MONDAY WILL BE A DRY DAY AS HIGH PRESSURE
CONTINUES TO BUILD ACROSS THE REGION. MONDAY NIGHT IS SHAPING UP
AS A MAINLY CLEAR ONE. THE CENTER OF THE HIGH WILL BUILD RIGHT
ACROSS THE AREA MONDAY NIGHT AND THIS WILL RESULT IN MAINLY
CLEAR SKIES AND LIGHT WIND. THIS SCENARIO SHOULD SET THE STAGE
FOR THE FIRST DECENT SHOT OF AN EARLY SEPTEMBER FROST ACROSS
NORTHERN PORTIONS OF THE REGION. BASED ON THE SET UP, BLENDED IN
NBM25TH PERCENTILE FOR MIN TEMPERATURES MONDAY NIGHT WITH AREAS
OF FROST POSSIBLE ACROSS THE COLDER NORTH ALONG WITH PATCHY
RIVER VALLEY FOG. LOWS MONDAY NIGHT WILL FALL INTO THE MID TO
UPPER 30S ACROSS THE NORTH WITH LOWER 30S EXPECTED ACROSS THE
NORMALLY COLDER LOW LYING AREAS ALONG WITH AREAS OF FROST.
LONG TERM /TUESDAY THROUGH FRIDAY/
HIGH PRESSURE DRIFTS EAST THROUGH THE MARITIMES ON TUESDAY WITH
MAINLY SUNNY SKIES AND CONTINUED DRY WEATHER. AFTERNOON HIGH
TEMPERATURES AND OVERNIGHT LOWS WILL BE BELOW NORMAL FOR EARLY
SEPTEMBER. TUESDAY NIGHT WILL BE MAINLY CLEAR TO PARTLY CLOUDY
AND NOT AS COOL AS HIGH PRESSURE REMAINS. WEDNESDAY LOOKS LIKE
A CONTINUED DRY DAY AS THE AREA REMAINS BETWEEN AN APPROACHING
COLD FRONT ACROSS QUEBEC AND A STALLED FRONTAL BOUNDARY OFF THE
COAST. AFTERNOON HIGHS BY WEDNESDAY WILL BE IN THE LOWER 70S AND
CLOSE TO THE SEASONABLE NORMALS FOR THIS TIME OF YEAR. COLD
FRONT CROSSES THE REGION LATER WEDNESDAY NIGHT THROUGH EARLY
THURSDAY. LOOKS LIKE THE FRONTAL PASSAGE WILL BE DRY WITH
LIMITED MOISTURE EXPECTED ALONG THE FRONT. TURNING COOLER
THURSDAY AND FRIDAY WITH MAINLY DRY CONDITIONS EXPECTED. BUT IT
WILL CERTAINLY FEEL MORE FALL LIKE BY THE END OF THE WEEK WITH
AFTERNOON HIGHS AVERAGING BELOW NORMAL BY THE END OF THE WEEK.
AVIATION /04Z SATURDAY THROUGH WEDNESDAY/
NEAR TERM:
NORTH: IFR TO MVFR CONDITIONS WILL IMPROVE TO VFR LATE THIS
MORNING, THEN DROP BACK TO MVFR IN RAIN LATE TODAY INTO TONIGHT.
CONDITIONS WILL IMPROVE TO VFR ON SUNDAY. WINDS LIGHT S TODAY
THEN LIGHT AND VARIABLE TONIGHT INTO SUNDAY.
SOUTH: IFR TO LIFR CONDITIONS IN LOW CLOUDS WILL IMPROVE TO VFR
LATE MORNING INTO MIDDAY, THEN LOWER BACK TO MVFR IN RAIN LATE
TODAY INTO TONIGHT. MVFR CONDITIONS MAY DROP BACK TO IFR IN LOW
CLOUDS LATE TONIGHT INTO SUNDAY BEFORE IMPROVING BACK TO MVFR
LATE SUNDAY. S WINDS TONIGHT BECOMING LIGHT AND VARIABLE TONIGHT
INTO SUNDAY.
SHORT TERM: SUNDAY NIGHT THROUGH WEDNESDAY...MAINLY VFR IS
EXPECTED THROUGH THE PERIOD WITH LIGHT WINDS.
MARINE
NEAR TERM:
SEAS WILL BE UP TO 5 FT TODAY INTO THIS EVENING REQUIRING A SCA
FOR THE OFFSHORE WATERS. WINDS MAY BRIEFLY GUST UP TO 25 KT OVER
THE OFFSHORE WATERS. HUMID AIR OVER THE WATERS MAY RESULT IN FOG
LIMITING VISIBILITY TODAY INTO TONIGHT WITH SOME IMPROVEMENT IN
VISIBILITY POSSIBLE SUNDAY AS A COLD FRONT PUSHES OFFSHORE.
SHORT TERM: WINDS/SEAS REMAIN BELOW SCA LEVELS LEVELS THROUGH
MID WEEK.
CAR WATCHES/WARNINGS/ADVISORIES
ME...NONE.
MARINE...SMALL CRAFT ADVISORY UNTIL 11 PM EDT THIS EVENING FOR ANZ050-
051.
NEAR TERM...BLOOMER
SHORT TERM...TWD
LONG TERM...TWD
AVIATION...BLOOMER/TWD
MARINE...BLOOMER/TWD
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page