Area Forecast Discussion
Issued by NWS Portland, ME

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXUS61 KGYX 290644
AFDGYX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAY ME
244 AM EDT FRI MAY 29 2015

.SYNOPSIS...
HIGH PRESSURE WILL RETURN TODAY AND MOVE OFF THE COAST OVER THE
WEEKEND ALLOWING A WARM AND HUMID SOUTHWEST FLOW TO RETURN.
ANOTHER COLD FRONT CROSSES THE REGION SUNDAY MORNING.
COOL...CANADIAN HIGH PRESSURE WILL BUILD BACK OVER THE REGION
EARLY NEXT WEEK

&&

.NEAR TERM /THROUGH TODAY/...
QUIET CONDITIONS TODAY WITH DRIER CONDITIONS AND LOWERING DEW
POINTS EXPECTED. HIGHS WILL REBOUND INTO THE 70S...HOWEVER AN
ONSHORE COMPONENT WILL ALLOW FOR COOLER TEMPERATURES ALONG THE
COASTLINE...ESPECIALLY DURING THE AFTERNOON HOURS.

&&

.SHORT TERM /TONIGHT THROUGH 6 PM SATURDAY/...
A RETURN OF FOG MAY BE PROBLEMATIC LATER TONIGHT...ESPECIALLY
ALONG THE COAST AS WINDS WILL CONTINUE TO BE OFF THE GULF OF
MAINE. A SOUTHERLY RETURN FLOW WILL GRADUALLY STRENGTHEN AHEAD OF
AN APPROACHING COLD FRONT.

THIS STRONG FRONT WILL TRIGGER SHOWERS AND THUNDERSTORMS...MAINLY
OVER NORTHERN PORTIONS OF THE FORECAST AREA ON SATURDAY. THIS
SYSTEM WILL GRADUALLY SLIDE TOWARDS THE COASTLINE WITH TIME.
INCREASING SOUTHWESTERLY FLOW BOTH AT THE SURFACE AND ALOFT...WITH
MODEST DESTABILIZATION OVER THE NORTHERN 2/3 OF THE FORECAST AREA
ON SATURDAY SHOULD YIELD A FEW STORMS WITH STRONG GUSTY WINDS. SPC
HAS HIGHLIGHTED THIS REGION FOR A MARGINAL RISK OF SEVERE STORMS.

&&

.LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/...
COLD FRONT WILL CROSS THE REGION SATURDAY NIGHT BRINGING A ROUND OF
SHOWERS AND THUNDERSTORMS OVERNIGHT AND INTO SUNDAY MORNING IN
SOUTHERN ZONES AS THE FRONT SLOWS OVER SOUTHERN NEW ENGLAND.
SHOWERS MAY LINGER IN FAR SOUTHERN ZONES INTO THE EARLY AFTERNOON
BEFORE PUSHING OFFSHORE. HIGH TEMPS WILL RANGE FROM THE MID 70S TO
LOWER 80S.

HIGH PRESSURE BUILDING IN FROM THE NORTHWEST WILL DOMINATE WEATHER
ACROSS THE NORTHEAST SUNDAY NIGHT THROUGH MID WEEK AND BEYOND.
HIGH PRESSURE WILL GRADUALLY MOVE EAST THROUGH SOUTHERN QUEBEC
MONDAY AND INTO THE MARITIMES ON TUESDAY. SHORTWAVE CROSSING THE
REGION ON TUESDAY WILL SPIN UP LOW PRESSURE ON STALLED FRONTAL
BOUNDARY OVER SOUTHERN NEW ENGLAND BUT CLOUDS AND ASSOCIATED
PRECIP WILL REMAIN WELL SOUTH OF THE REGION.

AS THIS SYSTEM DEPARTS TUESDAY NIGHT ANOTHER AREA OF HIGH PRESSURE
WILL BUILD IN FROM THE WEST AND WILL SETTLE INTO SOUTHERN NEW
ENGLAND BY WEDNESDAY MORNING. HIGH PRESSURE WILL SHIFT OFFSHORE
SOUTH OF NEW ENGLAND WEDNESDAY NIGHT AND THURSDAY WITH RETURN FLOW
BRINGING WARMER AIR BACK INTO THE REGION FOR THE END OF THE WEEK.



&&

.AVIATION /06Z FRIDAY THROUGH TUESDAY/...
SHORT TERM...PATCHY FOG WITH LOCALIZED MVFR CONDITIONS EARLY THIS
MORNING. OTHERWISE VFR CONDITIONS TODAY WITH AREAS OF FOG AND
LOWERING VISIBILITIES AND CEILING ONCE AGAIN LATE TONIGHT.

LONG TERM...

&&

.MARINE...
SHORT TERM...WINDS AND SEAS WILL BE ON THE INCREASE SATURDAY
AFTERNOON. EXPECT SCA CONDITIONS WITH THE STRENGTHENING
SOUTHWESTERLY GRADIENT AHEAD OF A COLD FRONT.

LONG TERM...

&&

.FIRE WEATHER...
DRIER WEATHER ARRIVES TODAY. HOWEVER RELATIVELY LIGHT WINDS AND
GREEN UP SHOULD MINIMIZE FIRE DANGER.  ANOTHER ROUND OF SHOWERS
AND THUNDERSTORMS EXPECTED SATURDAY INTO SATURDAY NIGHT.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...NONE.
NH...NONE.
MARINE...NONE.

&&

$$


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.