Area Forecast Discussion
Issued by NWS Albany, NY

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000
FXUS61 KALY 311758
AFDALY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ALBANY NY
1258 PM EST SAT JAN 31 2015

.SYNOPSIS...
A FRIGID AIR MASS WILL BE OVER THE NORTHEAST TODAY. HIGH
PRESSURE WILL BE BRIEFLY IN CONTROL THIS AFTERNOON...THEN A CLIPPER
LOW SATURDAY NIGHT INTO SUNDAY WILL BRING SCATTERED SNOW SHOWERS
NORTH AND WEST OF THE CAPITAL DISTRICT. ANOTHER ROUND OF SNOW IS
EXPECTED SUNDAY NIGHT THROUGH MONDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
AS OF 1257 PM EST...THE WIND CHILL HEADLINES HAVE BEEN ALLOWED TO
EXPIRE. STILL...A BITTERLY COLD DAY OUT THERE WITH W TO NW WINDS
10 TO 20 MPH WITH SOME GUSTS AROUND 30 MPH. WIND CHILLS 10 BELOW
TO 10 ABOVE WILL BE COMMON WITH MAX TEMPS IN THE SINGLE DIGITS TO
LOWER TEENS ACROSS MOST OF THE REGION...EXCEPT THE MID HUDSON
VALLEY AND NW CT WHERE SOME MID AND UPPER TEENS ARE POSSIBLE.

HIGH PRESSURE WILL BRIEFLY BE IN CONTROL THIS AFTERNOON...
RIDGING IN FROM THE TN AND OH VALLEYS. SUNNY OR MOSTLY SUNNY
CONDITIONS WILL DOMINATE DUE TO THE STRONG SUBSIDENCE FROM THE
ANTICYCLONE. THE WINDS WILL ABATE IN THE MID TO LATE PM...AS A
WEAK CLIPPER APPROACHES.

STORM FOR LATE SUNDAY INTO MONDAY LOOKS ON TRACK...AND A WINTER
STORM WATCH CONTINUES FOR MOST OF THE FCST AREA EXCEPT FOR
HAMILTON...NRN WARREN...NRN WASHINGTON...AND NRN HERKIMER
COUNTIES.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH MONDAY/...
A WINTER STORM WATCH IS IN EFFECT FROM LATE SUNDAY EVENING
THROUGH MONDAY FOR MUCH OF EASTERN NEW YORK AND WESTERN NEW
ENGLAND EXCLUDING THE SOUTHERN ADIRONDACKS...

FOR TONIGHT...A FAST MOVING MOISTURE STARVED CLIPPER TYPE SYSTEM
IS EXPECTED TO RACE FROM THE UPPER GREAT LAKES ACROSS NORTHERN NEW
YORK OVERNIGHT. THIS SYSTEM WILL BRING A CHANCE OF SNOW SHOWERS TO
THE NORTHWESTERN THIRD OF THE FA WITH LITTLE IF ANY SNOW ELSEWHERE.
IT WILL CONTINUE TO BE VERY COLD WITH LOWS RANGING FROM 5 BELOW
ZERO NORTHWEST TO THE 10 ABOVE ZERO SOUTHEAST.

ON SUNDAY HIGH PRESSURE WILL STRETCH ACROSS SOUTHERN CANADA AND IN
THE WAKE OF THE CLIPPER TYPE SYSTEM WE ARE EXPECTING A DRY DAY.
ALTHOUGH CLOUDS WILL BE INCREASING AHEAD OF OUR NEXT SYSTEM SO
SKIES WILL BE MOSTLY CLOUDY. TEMPERATURES WILL BE HIGHER THAN
SATURDAY...BUT STILL WELL BELOW NORMAL WITH READINGS FROM THE
LOWER TEENS NORTHWEST TO UPPER 20S SOUTHEAST.

ON SUNDAY NIGHT WE ARE EXPECTING SNOW TO OVERSPREAD MUCH OF THE FA
FROM SOUTHWEST TO NORTHEAST DURING THE LATE EVENING HOURS AND A
WINTER STORM WATCH HAS BEEN POSTED FOR MUCH OF THE FA EXCLUDING
THE SOUTHERN ADIRONDACKS. WE WILL BE DEALING WITH A PROGRESSIVE
TYPE SYSTEM AS THE UPPER TROUGH AXIS REMAINS NEUTRAL POSITIVELY
TILTED UNTIL THE SYSTEM IS WELL OFF THE COAST. THE SURFACE LOW IS
EXPECTED TO TRACK FROM THE OHIO VALLEY LATE SUNDAY ACROSS THE
MIDDLE ATLANTIC REGION SUNDAY NIGHT AND PASS SOUTHEAST OF LONG
ISLAND ON MONDAY. THIS SYSTEM WILL PRODUCE GOOD OVERRUNNING AS
THERE IS PLENTY OF ISENTROPIC LIFT AND DECENT FRONTOGENESIS AT H7
BTWN 12Z AND 18Z ON MONDAY. IN THE WATCH AREA 7 INCHES OR MORE OF
SNOW IS POSSIBLE...HOWEVER AS WITH SO MANY STORMS THIS WINTER
THERE WILL BE A SHARP CUTOFF ON THE NORTHERN EDGE...THUS THE
REASON THAT THE SOUTHERN ADIRONDACKS WERE LEFT OUT OF THE WATCH AT
THIS TIME. LOWS SUNDAY NIGHT ARE EXPECTED TO RANGE FROM 10 TO 15
BELOW ZERO NORTHWEST TO THE MID TEENS SOUTHEAST. HIGHS ON MONDAY
WILL RANGE FROM THE SINGLE DIGITS NORTHWEST TO AROUND 20 SOUTHEAST.

&&

.LONG TERM /MONDAY NIGHT THROUGH SATURDAY/...
WELL BELOW NORMAL TEMPERATURES WILL CONTINUE THROUGH THE LONG
TERM PERIOD...

MONDAY NIGHT-TUESDAY...IN THE WAKE OF MONDAY/S STORM SYSTEM...THE
COMBINATION OF POTENTIALLY DEEP FRESH SNOW COVER...DECREASING
WIND...AND CLEARING SKIES SHOULD ALLOW TEMPS TO PLUMMET LATER AT
NIGHT WELL BELOW ZERO IN MOST AREAS...WITH MANY MIN TEMPS POSSIBLY
DIPPING INTO THE -10 TO -20 F RANGE BY DAYBREAK TUESDAY FOR AREAS
NORTH OF INTERSTATE 90. WINDS SHOULD BECOME LIGHT AT THAT TIME...SO
WIND CHILL VALUES SHOULD BE CLOSE TO ACTUAL AIR TEMPS. AFTER THE
BRUTALLY COLD START...EXPECT MOSTLY SUNNY SKIES WITH OCCASIONAL HIGH
CLOUDS PASSING THROUGH. MAX TEMPS ON TUE SHOULD EVENTUALLY REACH THE
LOWER/MID TEENS IN VALLEYS AND SINGLE DIGITS FOR HIGHER ELEVATIONS.

TUE NT-THU...A CLIPPER SYSTEM IS EXPECTED TO PASS ACROSS THE GREAT
LAKES AND INTO THE SAINT LAWRENCE VALLEY DURING THIS PERIOD. SOME
WARM ADVECTION SNOW SHOWERS WILL BE POSSIBLE LATE TUE NT INTO EARLY
WED...ESP ACROSS NW AREAS. THEN...ANOTHER ARCTIC FRONT ASSOCIATED
WITH THIS SYSTEM IS EXPECTED TO TRAVERSE THE REGION LATE WED OR
EARLY THU...PRECEDED AND ACCOMPANIED BY SNOW SHOWERS...WITH THE BEST
CHANCE FOR SOME MINOR ACCUMS ACROSS THE SOUTHERN ADIRONDACKS AND
SOUTHERN VT. SNOW SHOWERS SHOULD DECREASE IN AREAL COVERAGE BY LATE
THU. TEMPS WILL REMAIN BELOW NORMAL...BUT WILL MODERATE A BIT IN THE
SOUTHWEST FLOW AHEAD OF THE INCOMING FRONTAL BOUNDARY...WITH WED MAX
TEMPS POSSIBLY REACHING AROUND OR JUST OVER 30 IN VALLEYS...WITH
MAINLY MID/UPPER 20S FOR HIGHER ELEVATIONS. OVERNIGHT MIN TEMPS TUE
NT/WED AM SHOULD FALL INTO THE SINGLE DIGITS IN MOST AREAS...WITH
SOME SUBZERO MINS POSSIBLE ACROSS HIGHER TERRAIN AND POSSIBLY ACROSS
THE LAKE GEORGE REGION. IT IS POSSIBLE THAT MIN TEMPS OCCUR EARLY
TUE EVE...THEN RISE LATER AT NIGHT AS A SOUTHERLY FLOW DEVELOPS
ALONG WITH INCREASING CLOUDS. WED NT/THU AM MINS SHOULD FALL INTO
THE TEENS IN MOST VALLEYS...WITH SINGLE DIGITS CONFINED TO THE
SOUTHERN ADIRONDACKS. ON THU...MAX TEMPS SHOULD REACH THE TEENS TO
LOWER 20S...BUT MAY FALL IN THE AFTERNOON AS LOW LEVEL COLD
ADVECTION STRENGTHENS.

THU NT-FRI...GENERALLY COLD AND DRY. MIN TEMPS SHOULD FALL BELOW
ZERO IN MOST AREAS...AND WITH SOME LINGERING WIND...WIND CHILL
VALUES MAY REACH ADVISORY CRITERIA IN MANY AREAS...AND POSSIBLY
WARNING LEVELS ACROSS PORTIONS OF THE SOUTHERN ADIRONDACKS. FRI MAX
TEMPS SHOULD ONLY REACH THE LOWER/MID TEENS IN VALLEYS...AND SINGLE
DIGITS ACROSS MOST HIGHER ELEVATIONS.

&&

.AVIATION /18Z SATURDAY THROUGH THURSDAY/...
HIGH PRESSURE WILL BRIEFLY RIDGE IN THIS AFTERNOON...AS A CLIPPER
LOW WILL APPROACH FROM THE GREAT LAKES REGION...AND SE ONTARIO
TONIGHT. ANOTHER COLD FRONT MOVES THROUGH BY SUNDAY MORNING...AND
HIGH PRESSURE BRIEFLY BUILDS IN FROM THE NORTHWEST FOR SUNDAY
AFTERNOON.

VFR CONDITIONS ARE EXPECTED MOST OF THE NEXT 24 HRS FOR
KALB/KPSF/KGFL/KPOU. SOME CLOUDS WILL INCREASE FROM THE NORTH AND
WEST BTWN 00Z-06Z. THE CIGS WILL LOWER TO 3-6 KFT AGL BTWN 06Z-
12Z. THE BEST CHANCE OF MVFR CIGS WILL BE AT KPSF. ONCE THE
DISTURBANCE MOVES E/SE AFTER 12Z/SUN...THE SKIES WILL GRADUALLY
BECOME PARTLY IN THE AFTERNOON.

W/NW WINDS WILL CONTINUE AT 10-15 KT THIS AFTERNOON WITH SOME
GUSTS AROUND 20 KTS AT KALB/KPSF. THE WINDS WILL BECOME LIGHT FROM
THE N TO W AT LESS THAN 6 KTS OVERNIGHT. THE WINDS WILL GENERALLY
BE W TO NW AT 5-10 KTS SUNDAY LATE MORNING.

OUTLOOK...
SUNDAY NIGHT: HIGH OPERATIONAL IMPACT. DEFINITE SN.
MONDAY: HIGH OPERATIONAL IMPACT. DEFINITE SN.
MONDAY NIGHT: NO OPERATIONAL IMPACT.  NO SIG WX.
TUESDAY: NO OPERATIONAL IMPACT.  NO SIG WX.
TUESDAY NIGHT: NO OPERATIONAL IMPACT.  NO SIG WX.
WEDNESDAY: MODERATE OPERATIONAL IMPACT. CHANCE OF SHSN.

&&

.HYDROLOGY...
NO SIGNIFICANT HYDRO PROBLEMS ARE EXPECTED INTO EARLY NEXT WEEK.

A WIDESPREAD SNOWFALL IS EXPECTED FROM LATE SUNDAY EVENING INTO
MONDAY WITH MODERATE TO SIGNIFICANT ACCUMULATIONS POSSIBLE. ANY
CHANGE IN THE EXPECTED TRACK OF THE STORM WILL HAVE A BIG IMPACT
ON THE SNOWFALL FORECAST.

ICE WILL CONTINUE TO THICKEN ON RIVERS...STREAMS...CREEKS...LAKES
AND OTHER BODIES OF WATER.

FOR DETAILS ON SPECIFIC AREA RIVERS AND LAKES...INCLUDING OBSERVED
AND FORECAST RIVER STAGES AND LAKE ELEVATIONS...PLEASE VISIT THE
ADVANCED HYDROLOGIC PREDICTION SERVICE /AHPS/ GRAPHS ON OUR WEBSITE.

&&

.ALY WATCHES/WARNINGS/ADVISORIES...
CT...WINTER STORM WATCH FROM SUNDAY EVENING THROUGH MONDAY
     AFTERNOON FOR CTZ001-013.
NY...WINTER STORM WATCH FROM SUNDAY EVENING THROUGH MONDAY
     AFTERNOON FOR NYZ038>041-047>054-058>061-063>066-082>084.
MA...WINTER STORM WATCH FROM SUNDAY EVENING THROUGH MONDAY
     AFTERNOON FOR MAZ001-025.
VT...WINTER STORM WATCH FROM SUNDAY EVENING THROUGH MONDAY
     AFTERNOON FOR VTZ013>015.

&&

$$
SYNOPSIS...11/WASULA
NEAR TERM...WASULA
SHORT TERM...11
LONG TERM...KL
AVIATION...WASULA
HYDROLOGY...11






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