Area Forecast Discussion
Issued by NWS Portland, ME

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FXUS61 KGYX 290256 AAB
AFDGYX

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE GRAY ME
1056 PM EDT THU AUG 28 2014

.SYNOPSIS...
HIGH PRESSURE WILL BUILD IN FROM THE WEST THROUGH FRIDAY AND
SHIFT OFFSHORE ON SATURDAY...BRINGING COOLER AND LESS HUMID
CONDITIONS. A WARM FRONT CROSSES THE AREA SATURDAY NIGHT INTO
SUNDAY. A COLD FRONT LOOKS TO MOVE INTO THE AREA ON SUNDAY AND MAY
STALL NEARBY INTO EARLY NEXT WEEK.

&&

.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
.UPDATE...
NO MAJOR CHANGES FOR THIS UPDATE. ADJUSTED HOURLY TEMPERATURE AND
DEW POINT GRIDS TO ACCOUNT FOR CURRENT TRENDS.

&&

PREVIOUS DISCUSSION... ADJUSTED POPS FOR A FEW SPRINKLES OVER THE
MOUNTAINS AND FOOTHILLS. WRF HAS A GOOD HANDLE ON THE SITUATION
AND DIMINISHES THE PRECIPITATION OVER THE NEXT 1-2 HRS. CLOUDS ARE
FARTHER SOUTH THAN FORECAST AND HAVE ADJUSTED THIS AS WELL.
TEMPERATURES AND DEW POINTS ARE IN GOOD SHAPE. NW WINDS STILL
GUSTING INTO THE 15-25 MPH RANGE BUT SHOULD DECREASE IN THE NEXT
HOUR OR SO.

&&

.SHORT TERM /6 AM FRIDAY MORNING THROUGH FRIDAY NIGHT/...
THE LARGE RIDGE OF HIGH PRES BECOMES CENTERED OVER THE REGION
FRIDAY WITH LIGHT WINDS AND SUNNY SKIES. TEMPS WILL BE ON THE COOL
SIDE WITH HIGHS IN THE LOWER 70S. SKIES WILL REMAIN CLEAR FRIDAY
NIGHT ALLOWING ANOTHER NIGHT OF COOL TEMPS WITH LOWS IN THE MID
40S TO MID 50S. MODELS IN GENERAL AGREEMENT ON TEMPS BUT STILL
USED A BLEND.

&&

.LONG TERM /SATURDAY THROUGH THURSDAY/...
DEEP LAYER RIDGING WILL CREST OVER THE REGION SATURDAY WITH THE
SFC HIGH SLIDING OFFSHORE BY LATE IN THE DAY. THIS WILL INDUCE A
WAA PATTERN WITH WARMER AND MORE HUMID AIR MOVING INTO THE AREA.
HOWEVER...IT SHOULD REMAIN DRY. ON SUNDAY...A WARM AND HUMID DAY
IS EXPECTED IN THE WARM SECTOR. A COLD FRONT WILL APPROACH FROM
THE WEST DURING THE DAY AND SHOULD RESULT IN SHOWERS AND
THUNDERSTORMS BY SUNDAY AFTERNOON. A FEW COULD BE STRONG.

THIS FRONT MAY BECOME QUASI-STATIONARY EARLY NEXT WEEK NEAR THE
AREA AND MAY MEAN A CONTINUATION OF WARM AND HUMID CONDITIONS
ALONG WITH OCCASIONAL BOUTS OF SHOWERS AND THUNDERSTORMS THROUGH
TUESDAY OR WEDNESDAY BUT A COMPLETE WASHOUT IS NOT EXPECTED.

&&

.AVIATION /03Z FRIDAY THROUGH TUESDAY/...
.SHORT TERM...VFR THROUGH FRIDAY NIGHT...EXCEPT EXPECT RIVER VLY
FOG IN RIVER VALLEYS LATE TONIGHT INTO EARLY FRI.

.LONG TERM...MAINLY VFR CONDITIONS ARE FORESEEN FRIDAY THROUGH
EARLY NEXT WEEK...BUT A FEW BOUTS OF SHOWERS AND THUNDERSTORMS ARE
EXPECTED...ESPECIALLY SUNDAY. THIS COULD RESULT IN LOWER
CONDITIONS AT TIMES...WITH SOME COASTAL STRATUS AND FOG POSSIBLE.

&&

.MARINE...
.SHORT TERM...
WINDS WILL REMAIN BLO SCA CRITERIA TONIGHT THROUGH FRI NIGHT...BUT
DEEP WATER SWELLS WILL CONTINUE TO MOVE INTO THE REGION TONIGHT
SO WILL CONTINUE THE SCA FOR SEAS OVER THE ERN OUTER WATERS UNTIL
FRI MORNING. THE SWELLS WILL SLOWLY SUBSIDE BLO SCA CRITERIA FRI
AND FRI NIGHT.

A HIGH SURF ADVISORY WILL REMAIN IN EFFECT FOR THE ENTIRE
IMMEDIATE COASTLINE THROUGH FRIDAY MORNING. SOME RIP CURRENTS ARE
LIKELY DUE TO THE LONG PERIOD GROUNDSWELLS.

.LONG TERM...SCA CONDITIONS POSSIBLE...MAINLY SAT NIGHT THROUGH
SUN NIGHT.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...HIGH SURF ADVISORY UNTIL 11 AM EDT FRIDAY FOR MEZ023>028.
NH...HIGH SURF ADVISORY UNTIL 11 AM EDT FRIDAY FOR NHZ014.
MARINE...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS UNTIL 8 AM EDT FRIDAY
     FOR ANZ150-152.

&&

$$

UPDATE...HANES



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