000
FXUS61 KGYX 272337
AFDGYX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAY ME
637 PM EST MON DEC 27 2010
.SYNOPSIS...
INTENSE LOW PRESSURE WILL MOVE OFF TO THE NORTHEAST AWAY FROM NEW
ENGLAND THIS EVENING. STRONG NORTHWEST WINDS BEHIND THE LOW WILL
BRING COLD AIR INTO THE AREA TONIGHT WITH GUSTY WINDS CONTINUING
ON TUESDAY. HIGH PRESSURE OVER THE OHIO RIVER VALLEY WILL THEN
MOVE SLOWLY EAST DURING THE REMAINDER OF THE WEEK BRINGING FAIR
WEATHER. A WARM FRONT WILL MOVE ACROSS NEW ENGLAND SATURDAY NIGHT
AND SUNDAY BRINGING A CHANCE OF SNOW TO THE REGION.
&&
.NEAR TERM /UNTIL 6 AM TUESDAY MORNING/...
QUICK UPDATE TO DROP EXPIRED HEADLINES FROM ZONES...BUT NO MAJOR
FORECAST CHANGES.
PREVIOUS DISCUSSION...
LOW PRESSURE CONTINUES TO SPIN AND MOVE OFF TO THE EAST FROM CAPE
COD TOWARD NOVA SCOTIA. EARLIER DRY SLOT HAS FILLED BACK IN AS THE
LOW CONTINUES TO WIND UP. SOME HEAVY SNOW BANDS CONTINUE ACROSS
THE EASTERN PART OF THE AREA...WITH WINDS GUSTING ABOVE 40 MPH IN
MANY AREAS. THIS IS CAUSING BLOWING SNOW AND VISIBILITIES REDUCED
TO ONE QUARTER MILE OR LESS. THUS THE BLIZZARD WARNING CONTINUES
FOR MUCH OF WESTERN MAINE THROUGH EARLY THIS EVENING. THE HEAVY
SNOW WILL MOVE OFF TO THE EAST...BUT THE STRONG WINDS WILL REMAIN.
MAY HAVE TO EXTEND THE BLIZZARD WARNING OR ISSUE A WINTER WEATHER
ADVISORY FOR BLOWING SNOW TO REPLACE IT THIS EVENING IF BLOWING
SNOW PROBLEMS CONTINUE. WINDS WILL CONTINUE TO BLOW 15 TO 25 WITH
GUSTS TO 35 MPH OVERNIGHT. DO NOT EXPECT MUCH MORE THAN AN INCH OF
ADDITIONAL ACCUMULATIONS AS BLOWING SNOW COMPACTS THE FALLING SNOW
INTO DRIFTS AND REDUCES THE TOTAL DEPTH OF FURTHER ACCUMULATIONS.
TO THE WEST A WINTER WEATHER ADVISORY FOR BLOWING SNOW IS IN
PLACE AS GUSTY WINDS CONTINUE TO BLOW RECENTLY FALLEN SNOW AROUND.
HAVE NOTICED OBSERVATIONS FROM ASOS AND AWOS SITES AROUND NEW
HAMPSHIRE REPORTING REDUCED VISIBILITIES WHICH ARE LIKELY THE
RESULT OF BLOWING SNOW. EXPECT THAT EXPOSED AREAS MAY CONTINUE TO
SEE WORSE CONDITIONS THIS EVENING. WINTER WEATHER ADVISORY
CONTINUES THROUGH 6PM. WINDS WILL BE SLIGHTLY LESS TONIGHT BUT MAY
STILL CAUSE LOCALIZED PROBLEMS WITH BLOWING SNOW. AS TIME GOES
ON...THE SNOW WILL GRADUALLY BECOME LESS MOBILE AND THE BLOWING
SNOW ISSUES WILL SUBSIDE.
VERY COLD TEMPERATURES ARE MOVING IN BEHIND THE LOW. TEMPERATURES
ARE ALREADY IN THE SINGLE DIGITS ACROSS VERMONT AND WESTERN NEW
HAMPSHIRE. WITH STRONG WIND SPEEDS CONTINUING TONIGHT...WIND CHILL
VALUES WILL FALL TO 20 TO 30 BELOW ZERO ACROSS NORTHERN NEW
HAMPSHIRE AND NORTHWEST MAINE. A WIND CHILL ADVISORY HAS BEEN
ISSUED FOR THIS AREA AND CONTINUES THROUGH TOMORROW MORNING. WIND
CHILLS FURTHER SOUTH WILL FALL TO 10 TO 20 BELOW ZERO. THIS WILL
BE UNCOMFORTABLE FOR THOSE OUTDOORS BUT DOES NOT QUITE REACH
ADVISORY LEVELS.
&&
.SHORT TERM /6 AM TUESDAY MORNING THROUGH 6 PM TUESDAY/...
CLOUDS WILL HAVE CLEARED OUT BY TUESDAY MORNING FOR THE MOST PART.
TEMPERATURES WILL BE COLD WITH WIND CHILLS OF 20 BELOW ZERO OR
LOWER ACROSS THE NORTHERN PART OF THE AREA. WINDS WILL CONTINUE TO
GUST TO 30 MPH OR HIGHER DURING THE DAY ON TUESDAY...WITH HIGH
TEMPERATURES IN THE TEENS AND TWENTIES.
&&
.LONG TERM /TUESDAY NIGHT THROUGH MONDAY/...
HIGH PRESSURE WILL BUILD EAST AND WITH TIME A HIGH AMPLITUDE UPPER
RIDGE WILL DEVELOP OVER THE NORTHEASTERN UNITED STATES BY THE END OF
THE WEEK. MODERATING TEMPERATURES WILL ACCOMPANY THE HIGH PRESSURE
AREA AND BY THE WEEKEND TEMPERATURES MAY CLIMB TO WELL ABOVE NORMAL
LEVELS. DRY CONDITIONS ARE EXPECTED THROUGH THE REST OF THE WEEK AND
INTO SATURDAY. A WARM FRONT WILL MOVE ACROSS NEW ENGLAND SATURDAY
NIGHT AND SUNDAY BRINGING A CHANCE OF SNOW. RAIN IS ALSO POSSIBLE
NEAR THE COAST.
&&
.AVIATION /00Z TUESDAY THROUGH SATURDAY/...
SHORT TERM...EXPECT VISIBILITIES TO IMPROVE FROM WEST TO EAST
OVERNIGHT. BLOWING SNOW WILL CONTINUE TO HAMPER VISIBILITIES
ESPECIALLY AT LOCATIONS EXPOSED TO THE WIND THIS EVENING.
NORTHWEST WINDS WILL CONTINUE AT 10 TO 20 KT ALL NIGHT WITH GUSTS
TO 30 KT POSSIBLE. SHOULD IMPROVE TO VFR FOR ALL AREAS BY TUESDAY
MORNING THOUGH WINDS WILL CONTINUE TO GUST TO 25 KT.
LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...HIGH PRESSURE WILL
PREDOMINATE WITH VFR CONDITIONS EXPECTED THROUGH FRIDAY. AN
APPROACHING WARM FROM MAY BRING LIGHT MIXED PRECIPITATION AND MVFR
CONDITIONS LATE SATURDAY.
&&
.MARINE...
SHORT TERM...AS LOW PRESSURE PASSES BY TO THE SOUTH...STRONG
NORTHWEST WINDS WILL CONTINUE OVER THE WATERS. STRONG PRESSURE
GRADIENT BETWEEN THE DEEP LOW PASSING TOWARD NOVA SCOTIA AND HIGH
PRESSURE MOVING IN FROM THE GREAT LAKES WILL FUNNEL COLD AIR
SOUTHWARD. THIS COLD ADVECTION WILL HELP TO KEEP THE ATMOSPHERE
WELL MIXED OVER THE WATERS...ALLOWING STRONG WIND GUSTS TO STORM
FORCE TO CONTINUE TO MIX DOWN THROUGH THE NIGHT. EXPECT WINDS TO
DIE DOWN TO GALE FORCE BY TUESDAY MORNING. WAVES WILL BE HIGHEST
FURTHER FROM SHORE AND RANGE FROM 10 TO 20 FT.
LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...WINDS WILL DECREASE
BELOW GALE FORCE TUESDAY NIGHT...THEN DECREASE BELOW SMALL CRAFT
ADVISORY CRITERIA WEDNESDAY AS THE LOW CONTINUES TO MOVE OFF THROUGH
THE CANADIAN MARITIMES. WINDS AND SEAS WILL REMAIN BELOW SMALL
CRAFT ADVISORY CRITERIA WEDNESDAY NIGHT THROUGH SATURDAY AS HIGH
PRESSURE BUILDS OVER THE REGION.
&&
.GYX WATCHES/WARNINGS/ADVISORIES...
ME...WIND CHILL ADVISORY FROM 10 PM THIS EVENING TO NOON EST
TUESDAY FOR MEZ007>009.
NH...WIND CHILL ADVISORY FROM 10 PM THIS EVENING TO NOON EST
TUESDAY FOR NHZ001>005.
MARINE...STORM WARNING UNTIL 6 AM EST TUESDAY FOR ANZ150>154.
&&
$$
