National Weather Service National Headquarters

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

-- Discussion containing changed information from previous version are highlighted. --
000
FXUS61 KGYX 170127
AFDGYX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAY ME
927 PM EDT SUN JUN 16 2013

.SYNOPSIS...
A WEAK AREA OF LOW PRESSURE WILL CROSS THE REGION THIS EVENING BRINGING
WIDESPREAD SHOWERS TO MOUNTAINS AND FOOTHILLS AND SCATTERED
SHOWERS ALONG THE COAST. A COLD FRONT ASSOCIATED WITH ANOTHER
AREA OF LOW PRESSURE PASSING TO OUR NORTH MONDAY WILL TRIGGER
SHOWERS AND THUNDERSTORMS ACROSS THE AREA MONDAY AFTERNOON. THE
FRONT WILL MOVE OFF THE COAST TUESDAY MORNING. HIGH PRESSURE WILL
BUILD IN FOR THE MIDDLE AND LATTER PART OF THE WEEK.

&&

.NEAR TERM /THROUGH MONDAY/...
-- Changed Discussion --
UPDATE...
HAVE UPDATED GRIDDED FORECAST BASED ON CURRENT CONDITIONS. LATEST
RADAR ANIMATIONS CONTINUE TO SHOW SCATTERED SHOWERS OVER EASTERN
AREAS BEGINNING TO EXIT NEAR THE PENOBSCOT VALLEY REGION AND
WESTERN MOUNTAINS OF MAINE. WHILE SOME OF THIS IS DRYING UP WITH
EVAP COOLING...RAIN IS REACHING THE GROUND IN SOME AREAS. HAVE
LOWERED POPS FOR SOUTHERN AND WESTERN COUNTIES...AND ADDED PATCHY
FOG FOR MUCH OF THE REGION OVERNIGHT.

WILL CONTINUE TO USE THE HRRR FOR THE TIMING OF THE EXITING PCPN
FIELDS.

PREV DISC...
AREA OF SHOWERS CONTINUES TO MOVE EAST FROM NY STATE THIS
AFTERNOON. MUCH OF THE INITIAL PRECIP HAS BEEN EVAPORATING BEFORE
REACHING THE GROUND, ESPECIALLY IN SOUTHERN AREAS. AIR OVER MOUNTAINS
AND FOOTHILLS SHOULD SATURATE...SO EXPECT WIDESPREAD RAIN IN
THOSE AREAS THIS EVENING. ELSEWHERE...EXPECT ONLY SCATTERED
SHOWERS TO REACH THE GROUND AS AIR IS VERY DRY. PATCHY FOG
EXPECTED OVERNIGHT IN AREAS THAT GET A SHOWER THIS EVENING.
-- End Changed Discussion --

&&

.SHORT TERM /MONDAY NIGHT/...
FRONTAL BOUNDARY APPROACHES FROM THE WEST MONDAY WITH INCREASING
MOISTURE AND TEMPERATURES. AHEAD OF THE FRONT...TEMPS IN SOUTHERN
AREAS COULD REACH THE MID 80S. ATMOSPHERE BECOMES A BIT UNSTABLE
AHEAD OF THE FRONT BRINGING THE THREAT OF SHOWERS AND
THUNDERSTORMS TO THE AREA MONDAY AFTERNOON AND EVENING. FRONT
MOVES VERY THROUGH REGION WITH SHOWER THREAT CONTINUING MONDAY
NIGHT.

&&

.LONG TERM /TUESDAY THROUGH SUNDAY/...
FAIRLY QUIET EXTENDED PERIOD IN STORE. SHOULD BE A WEAK BOUNDARY
DRAPED ACROSS THE REGION TUESDAY MORNING THAT COULD PROVIDE A
FOCUS FOR SOME AFTERNOON CONVECTION. THE BOUNDARY IS EXPECTED TO
MOVE OFFSHORE TUESDAY NIGHT AS HIGH PRESSURE BUILDS IN FROM THE
WEST. HIGH PRESSURE THEN REMAINS IN PLACE ACROSS NORTHERN NEW
ENGLAND UNTIL AT LEAST FRIDAY. CYCLONIC FLOW ALOFT SETS UP OVER
THE REGION FRIDAY NIGHT. THE GFS IS TRYING TO DROP A WEAK BACK
DOOR COLD FRONT OUT OF CANADA FRIDAY NIGHT AND INTO SATURDAY BUT
APPEARS TO BE THE OUTLIER. WILL NOT GIVE IT TOO MUCH WEIGHT YET
BUT IT WILL REMAIN A FEATURE TO LOOK FOR OVER THE NEXT FEW DAYS.

&&

.AVIATION /01Z MONDAY THROUGH FRIDAY/...
SHORT TERM...MVFR CONDITIONS POSSIBLE TONIGHT IN SHOWERS AND IFR
CONDITIONS POSSIBLE IN PATCHY FOG OVERNIGHT. MVFR TO IFR
CONDITIONS POSSIBLE IN SHOWERS AND THUNDERSTORMS MONDAY AFTERNOON
AND NIGHT.

LONG TERM...VFR CONDITIONS EXPECTED THROUGHOUT THE PERIOD.

&&

.MARINE...
SHORT TERM...WINDS AND SEAS EXPECTED TO BE BELOW SCA CRITERIA.

LONG TERM...NO FLAGS EXPECTED.

&&

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

&&

$$