Dense Fog Advisory 13, NWS Philadelphia/Mount Holly

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
300 PM EST WED DEC 13 2006

.OVERVIEW...

MILD WEATHER WILL CONTINUE ....BUT.....ALMOST WHITE CHRISTMAS? -
GOTTA CHANCE, NOT FOR A BIG SNOW BUT SNOW SHOWERS ON THE BACK SIDE
OF A LOW PARALLELING THE MID ATLANTIC COAST AS IT MOVES OUT TO SEA.
LONG-RANGE MODELS ARE NICE TO LOOK AT, BUT THEY CAN BE QUITE
HUMBLING TOO IF YOU BEGIN TO CONJURE UP SOMETHING SO FAR OUT. WITH
THAT SAID, LIQUID PRECIPITATION WILL BE MOVING THROUGH AND OFF THE
COAST THIS EVENING WITH THE MILD REGIME CONTINUING OVER THE NEXT
WEEK, AND RATHER UNEVENTFUL FOR THIS TIME OF THE YEAR.

2.8 EARTHQUAKE IN THE VICINITY OF READING PENNA. JUST A SHORT TIME
AGO. VERY MINOR - THANKS RG

&&

.SHORT TERM /TONIGHT THROUGH THURSDAY NIGHT/...

THE BACK EDGE OF THE RAIN IS NERLY OFFSHORE A LITTLE AHEAD OF
SCHEDULE. THE RAIN ENDS BUT THERE SHOULD BE ENOUGH SENSIBLE MOISTURE
LURKING IN THE HILLS TO PRODUCE SOME FOG TONIGHT AS THE WINDS GROW
LIGHT. DONT THINK THAT WILL BE THE CASE CWA-WIDE. BROAD WESTERLY
UPPER FLOW WILL DOMINATE, BUT CAN ALREADY SEE A CHANGE IN THE OFFING
AS THE NEXT PACIFIC STORM MOVES ASHORE. A MINOR SHORT WAVE WILL
REACH THE GREAT LAKES THURSDAY NIGHT AND CONTINUE SOUTHEAST. 80H
TEMPS LINGER AROUND +4-6 DEGREES INTO THURSDAY NIGHT.

&&

.LONG TERM /THURSDAY NIGHT THROUGH WEDNESDAY/...
SURFACE LOW MOVES BETWEEN THE GTLKS AND JAMES BAY WHILE THE FRONT
SWINGS BY WITH A COUPLE OF SHOWERS ASSOCIATED WITH IT. LOOKS AS
THROUGH SOME SLIGHT CAA WILL TRIGGER THE SHOWERS BUT MAINLY ACROSS
THE NORTHERN COUNTIES, LEHIGH VALLEY AND NORTH. ONCE THE SHORT WAVE
MOVES THROUGH, BROAD RIDGE BUILDS INTO SATURDAY, THEN QUICKLY RETURN
TO ZONAL FLOW SUNDAY. WITH A TREMENDOUS TEMPERATURES GRADIENT WEST
TO EAST YOU JUST KNOW CYCLOGENESIS IS NOT THAT FAR OFF.

LOW PRESSURE WILL BE WELL OVER THE NORTH ATLANTIC WITH HIGH PRESSURE
SWEEPING DOWN FROM THE NORTH CENTRAL U.S. MEANWHILE, A FOUR CORNERS
LOW WILL TAKE SHAPE ON MONDAY AND EVOLVE INTO A FAIRLY STRONG
DECEMBER STORM. A STRONG RIDGE DEVELOP AHEAD OF THE LOW AS THE
STORM REALLY TAKES SHAPE OVER IOWA WEDNESDAY NEXT WEEK. NOT
SPECULATING ON THE WEATHER OUTCOME AT THIS POINT EXCEPT TO SAY SOME
COLD TEMPERATURES AT 80H REACH OUR REGION NEXT WEEK.

&&

.AVIATION /20Z-18Z/...
A SURFACE TROUGH CONTINUES TO CRUISE ACROSS THE AREA THIS AFTERNOON.
WITH THE FLOW VEERING TO THE SOUTHWEST BEHIND THE TROUGH, THERE IS
SOME UNCERTAINTY REGARDING THE EXTENT OF ATMOSPHERIC DRYING TONIGHT.
THE GFS AND NAM/WRF DO AGREE THAT DRYING WILL OCCUR TONIGHT,
ESPECIALLY FROM THE TOP ON DOWN. THIS CAN ALREADY BE SEEN TO OUR
WEST AS VISIBLE SATELLITE IMAGERY SHOWS CLOUDS SCOURING OUT NICELY
IN THE YORK, PENNSYLVANIA AREA ON WEST AND SOUTHWARD. THE NAM/WRF,
WHICH MANY TIMES OVERDOES ITS LOW-LEVEL MOISTURE, IS CLOSE TO WHAT
THE GFS IS PORTRAYING TONIGHT WITH REGARDS TO LOW-LEVEL MOISTURE.
INTERESTINGLY ENOUGH BOTH THE MAV AND MET GUIDANCE TANK THE CEILINGS
AROUND 06Z TONIGHT FOR A FEW TERMINALS THEN LIFT THEM BACK UP. NOT
REAL CERTAIN THAT THE CEILINGS WILL LOWER SUBSTANTIALLY OVERNIGHT OR
IF SOME CLEARING TAKES PLACE SOME SC REDEVELOPS AND LOWERS GIVEN THE
DRIER AIR WORKING IN. HOWEVER, DID KEEP SOME LOWER CEILINGS FOR THE
OVERNIGHT AT MOST TERMINALS. THERE SHOULD BE AT LEAST PARTIAL
CLEARING TONIGHT ESPECIALLY FOR KABE AND KRDG, THEREFORE CONTINUED
THE IDEA OF SOME FOG. IF CLOUDS DIMINISH MUCH MORE THAN ANTICIPATED,
THEN POCKETS OF LOCALLY DENSE FOG IS POSSIBLE LATER TONIGHT AND
EARLY WEDNESDAY MORNING GIVEN THE LOW-LEVEL MOISTURE AND LIGHT
WINDS. GENERALLY WENT WITH BORDERING MVFR WITH SOME IFR CONDITIONS
AT SOME TERMINALS, WITH CONFIDENCE LOWER OVERNIGHT REGARDING THE IFR
CONDITIONS AFTER REMAINING LOWER CLOUDS LIFT THIS EVENING.

ANY LOWER CLOUDS AND FOG THAT FORMS OVERNIGHT IS EXPECTED TO
DISSIPATE DURING WEDNESDAY MORNING, THEN SOME CU/SC AROUND ALONG
WITH POSSIBLY A BIT OF HIGH LEVEL CLOUDS.

&&

.MARINE...
SOUTHERLY WINDS CONTINUE ACROSS THE WATERS, HOWEVER OBSERVATIONAL
TRENDS INDICATING THE WINDS ARE BEGINNING TO VEER TO THE SOUTHWEST
AS A SURFACE TROUGH MOVES THROUGH. THIS TREND IS EXPECTED TO
CONTINUE THROUGH THE EVENING. HIGH PRESSURE IS THEN FORECAST
TO TAKE HOLD ACROSS THE SOUTHERN STATES WHICH WILL KEEP A
SOUTHWESTERLY FLOW ACROSS OUR REGION. A SHORT WAVE IS FORECAST TO
CROSS THE GREAT LAKES THURSDAY NIGHT INTO FRIDAY, WITH A WEAK COLD
FRONT/SURFACE TROUGH SWINGING THROUGH OUR AREA ON FRIDAY. THIS MAY
INCREASE THE WINDS FOR A TIME ON FRIDAY, WHICH COULD REACH SMALL
CRAFT ADVISORY CRITERIA. BUFKIT SOUNDINGS FOR BUOY 44009 INDICATE
POSSIBLE GUSTS ON FRIDAY TO AROUND 25 KNOTS. FOR NOW WILL GO WITH
GUSTS UP TO 25 KNOTS. HIGH PRESSURE THEN BUILDS IN TO START OFF THE
WEEK, WITH ANOTHER COLD FRONT SCHEDULED TO APPROACH THE REGION ON
MONDAY. THIS FRONT ALSO LOOKS FAIRLY WEAK.

REGARDING SEAS, THEY ARE RUNNING BETWEEN 3 AND 4 FEET ON THE OCEAN
AND ABOUT 2 FEET OR LESS ON DELAWARE BAY. SEAS AT BUOY 44025 HAVE
REMAINED BELOW 5 FEET UNDER THE SOUTHERLY FLOW FOR THE BULK OF TODAY.
WHILE THE WINDS MAY BE JUST ENOUGH TO GET SEAS THERE TO 5 FEET, THE
WINDS WILL BE VEERING TO THE SOUTHWEST, AND OBSERVATIONAL TRENDS AT
AVALON AND LONG BEACH ISLAND INDICATE A LOWERING TREND IN THE
NEARSHORE WAVE HEIGHTS. BASED ON A SOUTHWEST FLOW, SEAS SHOULD
REMAIN BELOW 5 FEET THROUGH THIS EVENING. AS A RESULT, WE WILL DROP
THE HEADLINE THAT HAS BEEN IN EFFECT FOR THE NORTHERN WATERS.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...NONE.

&&

OVERVIEW/SHORE/LONG TERM...EBERWINE
AVIATION/MARINE...GORSE

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
346 AM EST WED DEC 13 2006

ANZ430-431-450>455-DEZ001>004-MDZ008-012-015-019-020-NJZ001-
007>010-012>024-026-027-PAZ054-055-060>062-067>071-140900-
DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE-
DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE-
COASTAL WATERS FROM SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM-
COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT
20 NM-
COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT
20 NM-
COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM-
COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM-
COASTAL WATERS FROM CAPE HENLOPEN TO FENWICK ISLAND DE OUT 20 NM-
NEW CASTLE-KENT DE-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-SUSSEX-WARREN-MORRIS-HUNTERDON-
SOMERSET-MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-
ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-
CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
346 AM EST WED DEC 13 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN
PENNSYLVANIA, DELAWARE, THE NORTHERN MARYLAND EASTERN SHORE AND
NEW JERSEY, EXCLUDING THE FIVE NORTHEAST COUNTIES.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

KRUZDLO