Area Forecast Discussion
Issued by NWS Caribou, ME

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000 FXUS61 KCAR 091949 AFDCAR AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CARIBOU ME 249 PM EST TUE FEB 9 2010 .SYNOPSIS...
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HIGH PRESSURE WILL MOVE OVER THE AREA FOR TONIGHT INTO WEDNESDAY. STRONG LOW PRESSURE EXITING THE MID ATLANTIC COAST WILL TRACK WELL SOUTH OF THE REGION WEDNESDAY NIGHT INTO THURSDAY.
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&& .NEAR TERM /THROUGH WEDNESDAY/...
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WITH CLEAR SKIES AND DECREASING WINDS...THE MAIN FOCUS IS ON LOW TEMPS FOR TONIGHT. HAVE ADJUSTED TEMPS DOWNWARD TO TEENS DOWNEAST AND SINGLE DIGITS NORTH. READINGS NEAR THE ZERO MARK ARE POSSIBLE IN THE ALLAGASH AND RIVER VALLEYS IN THE NE SUCH AS MASARDIS WHERE WINDS WILL DECREASE EARLIER IN THE EVENING. WINDS SHOULD DECREASE IN MOST AREAS AFTER MIDNIGHT AND ALLOW RAPID COOLING. GEMS DEWPTS SHOW DEWPTS DECREASING TOWARDS ZERO IN NORTH BY EARLY WEDNESDAY AM. FOR WEDNESDAY...THE STORM TRACK REMAINS WELL TO THE SOUTH. CLOUDS WILL INCREASE IN THE BANGOR AREA AND DOWNEAST DURING THE MORNING WHILE SKIES SHOULD REMAIN ONLY PARTLY CLOUDY NORTH. HAVE NOT BROUGHT ANY PRECIP INTO THE CWA FOR THIS PERIOD.
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&& .SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY/...
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ENTIRE 12Z MDL SUITE SHOWS STORM SYSTEM PASSING WELL S OF OUR FA WED NGT/ERLY THU... AT BEST...APPEARS ONLY OUTER MOST ISLANDS MAY SEE SOME LGT SNOW OR SNOW SHOWERS FROM THIS SYSTEM WED NGT AS IT SLIDES S AND SE OF THE AREA. OTHERWISE...OUR REGION TO REMAIN UNDER THE BROAD NRLY LOW-LVL FLOW RESULTING FROM THE BROAD AREA OF PERSISTENT LOW PRESSURE ACROSS MUCH OF ERN CANADA... OCNL WEAK SPOKES OF ENERGY EMBEDDED IN THIS FLOW WILL ACT TO TRIGGER A FEW FLURRIES OR LGT SNOW SHOWERS FROM TIME TO TIME MAINLY ACROSS FAVORED UPSLOPE AREAS OF FAR NRN AND WRN MAINE W/ PARTLY TO M/CLDY SKIES N AND CLR TO P/CLDY SKIES S (AFTER MID/HGH CLDS FROM THE SRN STORM SYSTEM PULL OUT OF SRN AREAS BY ERLY THU AM. BESIDES A RATHER BENIGN WX PTRN...RELATIVELY MILD AIR FOR THIS TIME OF YEAR CONTS TO ADVECT SWWRD FROM THE MARITIMES AND THIS WILL CONT TO YIELD ABV NORMAL TEMPS THRU THE SHORT TERM PERIOD.
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&& .LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
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PTRN DISCUSSED IN THE SHORT TERM SECTION PERSISTS TO START THE LONG TERM PERIOD... EVENTUALLY MDLS SIMILAR IN TRYING TO BRING ANOTHER AREA OF LOW PRES FROM ERN CANADA BCK TO THE WSW (A FREQUENT SCENARIO THIS WNTR...) WHICH MAY ACT TO MAKE THINGS A BIT MORE UNSETTLED BY LATE WEEKEND/ERLY NXT WEEK. IN ADDITION...THE GFS W/ SOME SUPPORT FROM THE CANADIAN GEM...TRIES TO DVLP LOW PRES OVR THE CENTRAL APPALACHIANS SUN NGT W/ THE GFS LIFTING THIS SYSTEM UP INTO OUR AREA LATE MON/MON NGT. NOT SURE ABOUT THE GEM AS ITS FCST TIME PERIOD ENDS MON AM. THE ECMWF HAS NO HINT OF THIS SYSTEM... GIVEN THE PERSISTENT PTRN OF LATE SEEMS MORE REASONABLE TO ERR TOWARDS A MORE BENIGN SCENARIO ATTM SO WILL ONLY CARRY LOW CHC POPS TOWARD THE END OF THE FCST PERIOD...
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&& .AVIATION /19Z TUESDAY THROUGH SUNDAY/...
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NEAR TERM: VFR. GUSTY NW WINDS IN NE CORNER OF STATE WILL DECREASE THIS EVENING. AN MVFR DECK ALONG THE COAST...REACHING NORTHWARD TO BGR WILL MOVE IN LATE WEDS. SHORT TERM: NW FLOW W/ OCNL SPOKES OF ENERGY TO PERSIST WED NGT THRU SUN AND THIS SHOULD LEAD TO PRIMARILY VFR CONDS W/ TEMPO MVFR IN ANY SW- MAINLY NRN TAF SITES.
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&& .MARINE...
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NEAR TERM: SCA CONDITIONS RETURN WEDS PM FROM THE SOUTHWEST WITH WIND GUSTS REACHING OVER 30 KTS BY EVENING. WAVE HTS WILL INCREASE MORE AFTER THIS PERIOD...ON THURS. SHORT TERM: STORM SYSTEM TO PASS WELL S OF THE AREA WED NGT BUT CLOSE ENUF TO BRING LOW-END GLW CONDS TO OUR OUTER WATERS. WILL HOIST A GLW WRNG FOR LATER WED NGT THRU THU AM FOR JUST THE OUTER WATERS ATTM...
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&& .CAR WATCHES/WARNINGS/ADVISORIES...
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ME...NONE. MARINE...GALE WARNING FROM MIDNIGHT WEDNESDAY NIGHT TO NOON EST THURSDAY FOR ANZ050-051.
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&& $$ NEAR TERM...MWALKER SHORT TERM...KHW LONG TERM...KHW AVIATION...MWALKER MARINE...MWALKER/KHW

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