Area Forecast Discussion
Issued by NWS Portland, ME

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000 FXUS61 KGYX 201902 AFDGYX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAY ME 302 PM EDT WED AUG 20 2014 .SYNOPSIS...
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TWO WEAK COLD FRONTS WILL AFFECT THE REGION THROUGH THE END OF THE WEEK. ONE MOVES IN FROM THE WEST AND ONE FROM THE NORTHEAST. BOTH WILL PRODUCE LITTLE MORE THEN AN ISOLATED SHOWER OR THUNDERSTORM...AND AN INCREASE IN CLOUDS. HOWEVER...AN ONSHORE FLOW WILL RETURN THE REGION TO COOLER WEATHER THROUGH THE END OF THE WEEK. A RIDGE OF HIGH PRESSURE WILL ANCHOR OVER MAINE AND NEW HAMPSHIRE OVER THE WEEKEND AND EARLY NEXT WEEK...WITH A GRADUAL WARMING TREND.
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&& .NEAR TERM /THROUGH TONIGHT/...
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THIS EVENING WILL STAY MOSTLY CLEAR...WITH LIGHT TO CALM WINDS. TDS ARE A LITTLE HIGHER THAN LAST NIGHT...AND THIS WILL KEEP MINS A FEW DEGREES HIGHER THAN PREVIOUS NIGHTS...AND CLOSER TO NORMAL...GENERALLY IN THE 50S. WILL SEE PATCHY VALLEY FOG ONCE A GAIN...BUT TI LOOKS TO BE MORE PREVALENT...DEVELOPING IN SOME OF THE VALLEYS AT THE EDGE OF THE COASTAL PLAIN.
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&& .SHORT TERM /THURSDAY THROUGH THURSDAY NIGHT/...
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500MB CLOSED LOW THE WEST BEGINS TO FILL ON THU...AS ANOTHER WEAK LOW CLOSES OFF THE GULF OF ME. THIS WILL ACT TO WEAKEN AND STALL THE SFC FRONT APPROACHING FROM THE WEST...BUT WILL ALSO PU;; COOLER AIR FROM THE NE...WHICH WILL SET UP ANOTHER WEAK SFC BOUNDARY...ENHANCED BY THE ONSHORE DENSITY FLOW. LOOK FOR CLOUDS TO INCREASE OVER NERN ZONES AND IN THE CT VLY REGION DURING THE DAY...PERHAPS BORDERING AT M/CDY IN BOTH PLACES DURING THE AFTERNOON...WITH THE THREAT OF SHRA AND MAYBE A TSRA...ESPECIALLY IN THE ME MTNS/FOOTHILLS. COASTAL AREAS SHOULD REMAIN PART-MOSTLY SUNNY THRU THE DAY. HIGHS WILL BE LIMITED TO 70 TO 75. THU NIGHT WILL SEE SOME CLEARING AS ANY CLOUDS AND SHRA WILL BE AT LEAST PARTIALLY DRIVEN BY DIURNAL HEATING. SOME MOISTURE POOLING BETWEEN THE TWO FRONTS WILL KEEP MINS FROM DROPPING TOO MUCH BLO THE MID TO UPPER 50S.
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&& .LONG TERM /FRIDAY THROUGH WEDNESDAY/...
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A FRONTAL BOUNDARY WILL REMAIN SOUTHWEST OF AREA THROUGH EARLY NEXT WEEK AS A SERIES OF WAVES MOVE ALONG THE FRONT. THIS WILL BRING MORE CLOUDS INTO THE REGION FOR THURSDAY NIGHT AND FRIDAY. A STRENGTHENING SURFACE RIDGE OVER MAINE WILL GRADUALLY PUSH FRONTAL BOUNDARY SOUTHWEST LEADING TO PARTLY CLOUDY SKIES OVER THE WEEKEND AND EARLY NEXT WEEK WITH PLEASANT TEMPERATURES. A COLD FRONT WILL APPROACH THE REGION MID WEEK NEXT WEEK. NEW HAMPSHIRE AND THE WESTERN MOUNTAINS OF MAINE COULD SEE A SHOWER LATE THURSDAY NIGHT OR FRIDAY....OTHERWISE DRY WEATHER IS EXPECTED ACROSS THE REGION THROUGH EARLY NEXT WEEK. DERIVED OUTLOOK PERIOD FROM THE SUPERBLEND MODEL.
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&& .AVIATION /19Z WEDNESDAY THROUGH MONDAY/...
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SHORT TERM...MAINLY VFR THROUGH THU NIGHT...EXCEPT FOR VLY FOG AT KHIE/KLEB...AND PERHAPS A BRIEF PERIOD AROUND SUNRISE AT KCON/KAUG. LONG TERM...VFR CONDITIONS EXPECTED EXCEPT FOR MORNING FOG IN FAVORED AREAS.
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&& .MARINE...
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SHORT TERM...WINDS AND SEAS TO REMAIN WELL BELOW SMALL CRAFT LEVELS. LONG TERM...WINDS AND SEAS EXPECTED TO BE BELOW SMALL CRAFT CRITERIA.
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&& .GYX WATCHES/WARNINGS/ADVISORIES... ME...NONE. NH...NONE. MARINE...NONE. && $$ SYNOPSIS... NEAR TERM...CEMPA SHORT TERM...CEMPA LONG TERM...MARINE AVIATION...CEMPA MARINE...CEMPA

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