553
FXUS61 KGYX 091202
AFDGYX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAY ME
802 AM EDT TUE SEP 9 2025
SYNOPSIS
A SERIES OF HIGH PRESSURE CENTERS REMAIN IN CONTROL OF OUR
WEATHER THROUGH THE WEEK AND INTO THE WEEKEND. THE DAYTIME
TEMPERATURES WILL BE SEASONABLE WITH FAIR WEATHER AND THE
OVERNIGHTS WILL BE COOL. ANOTHER EXTENDED STRETCH OF DRY
WEATHER CONTINUES, WITH MAINLY DRY CONDITIONS EXPECTED THROUGH
THIS WEEKEND.
NEAR TERM /THROUGH TODAY/
800 AM EDT UPDATE TO EXPIRE THE FROST ADVISORY. TEMPERATURES
WILL CONTINUE TO WARM THROUGH THE MORNING SO WE DECIDED TO LET
THE ADVISORY EXPIRE ON TIME.
PREVIOUS DISCUSSION...
NIGHTTIME MICROPHYSICS SATELLITE IMAGERY EARLY ON THIS TUESDAY
MORNING SHOWS CLEAR SKIES OVER NEW ENGLAND WITH CIRRUS PASSING
EAST OF THE REGION FROM AN OFFSHORE FRONTAL BOUNDARY. THESE
CLEAR SKIES COMBINED WITH LIGHT WINDS IS ALLOWING FOR EXCELLENT
RADIATIONAL COOLING CONDITIONS. CURRENT READINGS RANGE FROM THE
30S ACROSS NORTHERN VALLEYS WITH 40S AND LOWER 50S ELSEWHERE.
ADDITIONAL COOLING CAN BE EXPECTED THROUGH SUNRISE, WITH FROST
ACROSS THE NORTH.
AN AREA OF HIGH PRESSURE WILL CREST OVERHEAD TODAY, ALLOWING FOR
LARGE SCALE SUBSIDENCE. THIS COMBINED WITH THE DRY AIRMASS WILL
RESULT IN A MOSTLY SUNNY DAY WITH HIGH TEMPERATURES NEAR TO A
LITTLE BELOW SEASONABLE AVERAGES WITH READINGS INTO THE 60S
ACROSS THE NORTH WITH LOWER 70S IN MOST OTHER LOCATIONS.
SHORT TERM /WEDNESDAY/
SOME INCREASE IN HIGH ALTITUDE CIRRUS IS POSSIBLE LATE TONIGHT
ACROSS SOUTHERN AND COASTAL LOCATIONS BUT OTHERWISE IT WILL BE
ANOTHER CLEAR AND COOL NIGHT. LOW TEMPERATURES WILL ONCE AGAIN
LIKELY FALL INTO THE 30S ACROSS THE NORTH WITH PATCHY FROST
POSSIBLE WITH 40S IN MOST OTHER LOCATIONS. VALLEY FOG IS ONCE
AGAIN LIKELY AS WE NEAR THE CLIMATOLOGICAL PEAK SEASON.
AN OFFSHORE FRONTAL BOUNDARY MAY RESULT IN SOME ADDITIONAL CLOUD
COVER ACROSS SOUTHERN AND COASTAL AREAS ON WEDNESDAY WITH MAINLY
SUNNY SKIES FURTHER TO THE NORTH. LATEST HI-RES GUIDANCE IS
INDICATING THAT A FEW WIDELY SCATTERED SHOWERS MAY CLIP SOUTHERN
AREAS AND THEREFORE INCREASED POPS A BIT FROM NBM. HIGH
TEMPERATURES WILL BE INTO THE 70S.
LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/
05Z LONG TERM UPDATE... LITTLE CHANGE IN THE LATEST NBM SUITE OF
GUIDANCE. FAIR WEATHER LOOKS TO PERSIST FOR THE FORESEEABLE
FUTURE WITH MAINLY DRY CONDITIONS AND TEMPERATURES NEAR TO A
LITTLE BELOW AVG.
PREVIOUSLY...
OVERVIEW...
A LARGE SCALE RIDGE ACROSS WESTERN NORTH AMERICA KEEPS
SEASONABLY COOL AND DRY CONDITIONS IN PLACE THROUGH THE WEEK,
WHILE A BROAD TROUGH PREVAILS ACROSS THE EASTERN US.
DETAILS...
A SERIES OF WEAK TROUGHS AND RIDGES TRANSIT THROUGH THE
NORTHEAST THIS WEEK WITH A BROAD TROUGH ACROSS EASTERN NORTH
AMERICA, WHILE TEMPERATURES REMAIN NEAR TO BELOW NORMAL THROUGH
THE WEEKEND. THE WARMEST DAY LOOKS TO BE ON THURSDAY, AS TEMPS
CLIMB INTO THE MID TO UPPER 70S AHEAD OF AN APPROACHING COLD
FRONT ON SOUTHERLY FLOW. OTHERWISE, A SERIES OF HIGH PRESSURE
CENTERS CONTINUE TO BRING FRESH COOL AND DRY AIRMASSES THROUGH
THE WEEKEND.
RAIN CHANCES REMAIN LOW THROUGH THE WEEK AND INTO THE WEEKEND.
A WAVE OF LOW PRESSURE PASSES OFFSHORE ON WEDNESDAY, WITH THE
CHANCE FOR SOME SCATTERED SPRINKLES ALONG THE COASTLINE. A COLD
FRONT CROSSES THROUGH DURING THE DAY ON THURSDAY, BUT ONLY
BRINGS THE CHANCE FOR SOME ISOLATED SHOWERS ACROSS THE HIGHER
TERRAIN. ANOTHER DRY FRONT IS LIKELY TO PASS THROUGH LATE ON
SUNDAY.
THE MAIN WEATHER CONCERN THIS WEEK WILL BE FIRE WEATHER
CONDITIONS. COOL NIGHTS CONTINUE TO HELP WITH FUEL RECOVERY, BUT
BREEZIER AND DRIER CONDITIONS BEHIND THE COLD FRONT LATE
THURSDAY AND INTO FRIDAY LOOK TO BE THE MAIN TIMEFRAME OF FOCUS
FOR SOME GREATER FIRE WEATHER CONDITIONS.
AVIATION /12Z TUESDAY THROUGH SATURDAY/
SHORT TERM...VFR CONDITIONS DOMINATE WITH STRONG HIGH PRESSURE
OVERHEAD ONCE MORNING FOG BURNS OFF. CLEAR SKIES WILL CONTINUE.
EXPECT THE REDEVELOPMENT OF STEAM/VALLEY FOG OVERNIGHT AS TEMPS
PLUMMET OVERNIGHT WITH CLEAR SKIES ONCE AGAIN.
LONG TERM...VFR PREVAILS THROUGH THE WEEKEND DURING THE DAYTIME
AT ALL TERMINALS. NIGHTTIME VALLEY FOG IS LIKELY EACH NIGHT AT
LEB AND HIE, AND POSSIBLE AT ALL OTHER TERMINALS EACH NIGHT AS
WELL.
MARINE
SHORT TERM...WINDS AND SEAS TO REMAIN BELOW SCA CRITERIA THROUGH
THE PERIOD AS A SERIES OF HIGH PRESSURE SYSTEMS MOVE NEAR OR
OVER THE WATERS.
LONG TERM...CONDITIONS LOOK TO REMAIN BELOW SCA LEVELS INTO THE
WEEKEND AS A SERIES OF HIGH PRESSURE CENTERS TRANSIT THROUGH
THE GULF OF MAINE. A WEAK COLD FRONT LIKELY CROSSES THE WATERS
LATE THURSDAY, AND THEN ANOTHER ONE IS LIKELY LATE IN THE
WEEKEND.
GYX WATCHES/WARNINGS/ADVISORIES
ME...NONE.
NH...NONE.
MARINE...NONE.
SYNOPSIS...
NEAR TERM...HARGROVE/TUBBS
SHORT TERM...TUBBS
LONG TERM...CLAIR/TUBBS
AVIATION...
MARINE...
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