Alert archive / New Jersey / Winter Storm Watches in 2013

Winter Storm Watch 2, NWS Philadelphia/Mount Holly

February 6, 2013Carbon County, Monroe County, Northampton County, Pennsylvania; 8 counties in New Jersey

NWS Philadelphia/Mount Holly issued this winter storm watch at Feb 6, 2013, 3:50 PM EST for Carbon County, Monroe County, Northampton County, Pennsylvania; 8 counties in New Jersey. It took effect at Feb 8, 2013, 2:00 PM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Feb 6, 2013, 3:50 PM EST (20:50 UTC)
In effect from
Feb 8, 2013, 2:00 PM EST
Expired
Feb 7, 2013, 3:20 PM EST
In force
Issued by
NWS Philadelphia/Mount Holly

Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Carbon County, PA, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 92 km from the middle of the area, began a volume at 20:50 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.8 hours before the alert went out and 168 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2013-02-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2013-02-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
530 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

718 
WWUS41 KPHI 062050
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
350 PM EST WED FEB 6 2013

...A POTENTIALLY SIGNIFICANT WINTER STORM TO AFFECT THE AREA
FRIDAY INTO SATURDAY...

.LOW PRESSURE IS FORECAST TO DEVELOP NEAR THE CAROLINA COAST
LATE THURSDAY, THEN TRACK NORTHEASTWARD WHILE RAPIDLY INTENSIFYING
THROUGH FRIDAY NIGHT. THIS BRINGS THE STORM TRACK TO OUR EAST,
WITH THE POTENTIAL FOR A SIGNIFICANT SNOWFALL.

NJZ001-007>010-012>015-PAZ054-055-062-071000-
/O.NEW.KPHI.WS.A.0002.130208T1800Z-130209T1200Z/
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-CARBON-MONROE-
NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD...SANDY HOOK...
TRENTON...JIM THORPE...STROUDSBURG...BETHLEHEM...EASTON
350 PM EST WED FEB 6 2013

...WINTER STORM WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY MORNING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
STORM WATCH, WHICH IS IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY MORNING.

* HAZARD TYPES...HEAVY SNOW. THE SNOW SHOULD MIX WITH OR CHANGE TO
  SLEET AND RAIN FOR A TIME ACROSS AT LEAST PORTIONS OF THE AREA.

* ACCUMULATIONS...5 TO 10 INCHES OF SNOW POSSIBLE. THE HIGHEST
  AMOUNTS MAINLY TOWARD NORTHWESTERN NEW JERSEY INTO THE POCONOS.

* TIMING...SNOW SHOULD DEVELOP FRIDAY MORNING, THEN IT SHOULD MIX
  WITH OR CHANGE TO SOME SLEET AND RAIN FROM SOUTHEAST TO
  NORTHWEST. THE SNOW COULD BE HEAVY AT TIMES LATER FRIDAY
  AFTERNOON AND FRIDAY NIGHT. ANY RAIN OR MIXED PRECIPITATION IS
  EXPECTED TO CHANGE TO SNOW FRIDAY NIGHT BEFORE ENDING EARLY
  SATURDAY MORNING.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS INCLUDING GREATLY REDUCED
  VISIBILITIES.

* WINDS...NORTH 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW, SLEET, OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE
TO MONITOR THE LATEST FORECASTS.

&&

$$

GORSE
3 follow-up statements
671 
WWUS41 KPHI 070829
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
329 AM EST THU FEB 7 2013

...A POTENTIALLY SIGNIFICANT WINTER STORM TO AFFECT THE AREA
FRIDAY INTO SATURDAY...

.LOW PRESSURE IS FORECAST TO DEVELOP NEAR THE CAROLINA COAST LATE
TODAY...THEN TRACK NORTHEASTWARD WHILE RAPIDLY INTENSIFYING
THROUGH FRIDAY NIGHT. THIS BRINGS THE STORM TRACK TO OUR EAST...
WITH THE POTENTIAL FOR A SIGNIFICANT SNOWFALL.

NJZ001-007>010-012>015-PAZ054-055-062-072200-
/O.EXT.KPHI.WS.A.0002.130208T1900Z-130209T1200Z/
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-CARBON-MONROE-
NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD...SANDY HOOK...
TRENTON...JIM THORPE...STROUDSBURG...BETHLEHEM...EASTON
329 AM EST THU FEB 7 2013

...WINTER STORM WATCH NOW IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY MORNING...

* HAZARD TYPES...HEAVY SNOW. THE SNOW SHOULD MIX WITH OR CHANGE TO
  SLEET AND RAIN FOR A TIME ACROSS PORTIONS OF THE AREA.

* ACCUMULATIONS...SNOW ACCUMULATION OF 4 TO 10 INCHES. THE HIGHEST
  AMOUNTS ARE EXPECTED OVER NORTHWEST NEW JERSEY INTO THE SOUTHERN
  POCONOS.

* TIMING...SNOW SHOULD DEVELOP FRIDAY MORNING...THEN MIX WITH OR
  CHANGE TO SLEET AND RAIN FROM SOUTHEAST TO NORTHWEST. THE SNOW
  COULD BE HEAVY AT TIMES LATER FRIDAY AFTERNOON AND FRIDAY NIGHT.
  ANY RAIN OR MIXED PRECIPITATION IS EXPECTED TO CHANGE TO SNOW
  FRIDAY NIGHT BEFORE ENDING EARLY SATURDAY MORNING.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS INCLUDING GREATLY REDUCED
  VISIBILITIES.

* WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW... SLEET... OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$
086 
WWUS41 KPHI 071811
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
111 PM EST THU FEB 7 2013

...A POTENTIALLY SIGNIFICANT WINTER STORM TO AFFECT THE AREA
FRIDAY INTO EARLY SATURDAY ...

.LOW PRESSURE DEVELOPING NEAR THE COASTAL CAROLINAS LATE TODAY...WILL
RAPIDLY INTENSIFY AS IT MOVES TO A POSITION 100 MILES EAST OF ATLANTIC
CITY LATE FRIDAY AFTERNOON THEN TO NEAR NANTUCKET EARLY SATURDAY.

SNOW THAT FALLS PRIOR TO SUNRISE FRIDAY IN NORTHERN NEW JERSEY AND
EASTERN PENNSYLVANIA WHILE A HAZARD...IS NOT THE PRIMARY EVENT. THE
POTENTIALLY DANGEROUS PORTION OF THIS STORM IS FOR THE FRIDAY EVENING
RUSH HOUR INTO THE WEE HOURS OF SATURDAY MORNING.

NJZ001-007>010-012>015-PAZ054-055-062-080215-
/O.CON.KPHI.WS.A.0002.130208T1900Z-130209T1200Z/
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-CARBON-MONROE-
NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD...SANDY HOOK...
TRENTON...JIM THORPE...STROUDSBURG...BETHLEHEM...EASTON
111 PM EST THU FEB 7 2013

...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON
THROUGH SATURDAY MORNING...

* HAZARD TYPES...HEAVY SNOW. SNOW WILL MIX WITH OR CHANGE TO SLEET
  AND RAIN FOR A TIME NEAR AND SOUTH OF INTERSTATE 78 BEFORE
  PROBABLY CHANGING TO HEAVY SNOW LATE FRIDAY AFTERNOON.

* ACCUMULATIONS...GENERAL SNOW ACCUMULATIONS WILL PROBABLY RANGE
  FROM 10 TO 15 INCHES ALONG AND NORTH OF INTERSTATE 80 TO BETWEEN
  5 AND 10 INCHES ELSEWHERE IN THE WATCH AREA. ANY FREEZING RAIN
  SHOULD BE MINOR IN COMPARISON BUT CONTRIBUTE TO VERY HAZARDOUS
  CONDITIONS.

* TIMING...SNOW FRIDAY MORNING WILL PROBABLY CHANGE BRIEFLY TO
  SLEET AND RAIN DURING THE DAYLIGHT HOURS FROM NEAR ALLENTOWN
  EASTWARD TO NEAR FLEMINGTON AND SOMERVILLE NEW JERSEY.
  THEREAFTER... HEAVY SNOW IS EXPECTED LATE IN THE DAY AND FRIDAY
  NIGHT WITH ONE TO 2 INCH PER HOUR ACCUMULATIONS POSSIBLE.
  NORTHERLY WINDS WILL GUST TO 30 MPH CAUSING BLOWING AND
  DRIFTING.

* IMPACTS...VERY HAZARDOUS TRAVEL IS EXPECTED FOR THE EVENING
  COMMUTE AND WELL INTO THE NIGHT WITH VISIBILITY DOWN TO ONE
  QUARTER MILE AT TIMES. ISOLATED POWER OUTAGES ARE POSSIBLE...
  ESPECIALLY MONMOUTH COUNTY WHERE WINDS MAY GUST TO 45 MILES AN
  HOUR FOR A TIME FRIDAY EVENING. 

* AFTER THE STORM...SNOW TAPERS TO FLURRIES BY DAWN SATURDAY AND
  BLUSTERY SUNNY COLD SATURDAY AFTERNOON IS FORECAST. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW... SLEET... OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$


DRAG
999 
WWUS41 KPHI 072020
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
320 PM EST THU FEB 7 2013

...A MAJOR WINTER STORM WILL AFFECT THE NORTHEAST UNITED STATES 
FRIDAY INTO EARLY SATURDAY...

.LOW PRESSURE DEVELOPING NEAR THE COASTAL CAROLINA'S LATE TODAY...
WILL RAPIDLY INTENSIFY AS IT MOVES TO A POSITION 100 TO 150 MILES
EAST OF ATLANTIC CITY LATE FRIDAY AFTERNOON THEN TO NEAR NANTUCKET
EARLY SATURDAY.

THE POTENTIALLY DANGEROUS PORTION OF THIS STORM IS FOR THE FRIDAY
EVENING RUSH HOUR INTO THE WEE HOURS OF SATURDAY MORNING WHEN
TREACHEROUS ROAD CONDITIONS ARE EXPECTED TO DEVELOP. 

BE PREPARED FOR MAJOR TRAVEL DELAYS LATE FRIDAY AND FRIDAY NIGHT.

NJZ001-007-008-PAZ054-055-062-080430-
/O.UPG.KPHI.WS.A.0002.130208T1900Z-130209T1200Z/
/O.NEW.KPHI.WS.W.0002.130208T1100Z-130209T1100Z/
SUSSEX-WARREN-MORRIS-CARBON-MONROE-NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
JIM THORPE...STROUDSBURG...BETHLEHEM...EASTON
320 PM EST THU FEB 7 2013

...WINTER STORM WARNING IN EFFECT FROM 6 AM FRIDAY TO 6 AM EST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 6 AM FRIDAY
TO 6 AM EST SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN
EFFECT.

* LOCATIONS...THE POCONOS AND FAR NORTHERN NEW JERSEY MAINLY NORTH
  OF INTERSTATE 78.

* HAZARD TYPES...OCCASIONALLY HEAVY SNOW. SNOW WILL MIX WITH OR
  CHANGE TO SLEET AND RAIN FOR A TIME NEAR AND SOUTH OF INTERSTATE
  78 BEFORE PROBABLY CHANGING TO HEAVY SNOW LATE FRIDAY AFTERNOON.

* ACCUMULATIONS...SNOW ACCUMULATION OF 10 TO 16 INCHES...ALONG
  WITH POSSIBLY A TRACE OF ICE.

* TIMING...SNOW FRIDAY MORNING WILL PROBABLY CHANGE BRIEFLY TO
  SLEET AND RAIN DURING THE DAYLIGHT HOURS FROM NEAR ALLENTOWN
  EASTWARD TO NEAR FLEMINGTON AND SOMERVILLE NEW JERSEY.
  THEREAFTER... THE HEAVIEST SNOW IS EXPECTED LATE IN THE DAY AND
  FRIDAY NIGHT WITH ONE TO 2 INCH PER HOUR ACCUMULATIONS.
  NORTHERLY WINDS WILL GUST TO 30 MPH CAUSING BLOWING AND DRIFTING.
  THERE IS A SMALL CHANCE OF A THUNDERSTORM WITH THE SNOW.

* IMPACTS...VERY HAZARDOUS TRAVEL IS EXPECTED FOR THE EVENING
  COMMUTE AND WELL INTO THE NIGHT WITH VISIBILITY DOWN TO ONE
  QUARTER MILE AT TIMES. ISOLATED POWER OUTAGES ARE POSSIBLE...
  ESPECIALLY MONMOUTH COUNTY WHERE WINDS MAY GUST TO 45 MILES AN
  HOUR FOR A TIME FRIDAY EVENING.

* TEMPERATURES...FALLING FROM NEAR 30 DURING THE DAY DOWN THROUGH
  THE 20S AT NIGHT.

* AFTER THE STORM...SNOW TAPERS TO FLURRIES BY DAWN SATURDAY AND 
  BLUSTERY SUNNY COLD SATURDAY AFTERNOON IS FORECAST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE.  THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

NJZ009-010-012>015-080430-
/O.UPG.KPHI.WS.A.0002.130208T1900Z-130209T1200Z/
/O.NEW.KPHI.WS.W.0002.130208T2000Z-130209T1100Z/
HUNTERDON-SOMERSET-MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-
MERCER-
INCLUDING THE CITIES OF...FLEMINGTON...SOMERVILLE...
NEW BRUNSWICK...FREEHOLD...SANDY HOOK...TRENTON
320 PM EST THU FEB 7 2013

...WINTER STORM WARNING IN EFFECT FROM 3 PM FRIDAY TO 6 AM EST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 3 PM
FRIDAY TO 6 AM EST SATURDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.

* HAZARD TYPES...HEAVY SNOW. 

* ACCUMULATIONS...SNOW ACCUMULATION OF 6 TO 10 INCHES...ALONG WITH
  POSSIBLY A TRACE OF ICE.

* TIMING...ANY SNOW FRIDAY MORNING WILL CHANGE RAIN DURING THE
  DAYLIGHT HOURS THEN BACK TO HEAVY SNOW LATE IN THE DAY FRIDAY OR
  FRIDAY EVENING. ONE TO 2 INCH PER HOUR ACCUMULATIONS ARE
  EXPECTED FOR SEVERAL HOURS FRIDAY NIGHT. NORTHERLY WINDS WILL
  GUST 30 TO 40 MPH CAUSING BLOWING AND DRIFTING. THERE IS A
  SMALL CHANCE FOR A THUNDERSTORM WITH THE SNOW.

* IMPACTS...VERY HAZARDOUS TRAVEL IS EXPECTED FOR THE EVENING
  COMMUTE AND WELL INTO THE NIGHT WITH VISIBILITY DOWN TO ONE
  QUARTER MILE AT TIMES. ISOLATED POWER OUTAGES ARE POSSIBLE...
  ESPECIALLY MONMOUTH COUNTY WHERE WINDS MAY GUST TO 45 MILES AN
  HOUR FOR A TIME FRIDAY EVENING.

* TEMPERATURES...FALLING TO BETWEEN 25 AND 30 DURING THE SNOW
  FRIDAY NIGHT.

* AFTER THE STORM...SNOW TAPERS TO FLURRIES BY DAWN SATURDAY AND 
  BLUSTERY SUNNY COLD SATURDAY AFTERNOON IS FORECAST.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE.  THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

PAZ061-080430-
/O.NEW.KPHI.WS.W.0002.130208T1100Z-130209T1100Z/
LEHIGH-
INCLUDING THE CITY OF...ALLENTOWN
320 PM EST THU FEB 7 2013

...WINTER STORM WARNING IN EFFECT FROM 6 AM FRIDAY TO 6 AM EST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 6 AM FRIDAY
TO 6 AM EST SATURDAY.

* ACCUMULATIONS...SNOW ACCUMULATION OF 6 TO 12 INCHES...ALONG WITH
  POSSIBLY A TRACE OF ICE.

* WINDS...NORTH 10 TO 15 MPH WITH GUSTS UP TO 30 MPH.

* TEMPERATURES...IN THE LOWER 30S DURING THE DAY FALLING TO
  BETWEEN 25 AND 30 AT NIGHT.

* VISIBILITIES...ONE QUARTER MILE OR LESS AT TIMES.

* TIMING...SNOW FRIDAY MORNING MAY BRIEFLY CHANGE TO SLEET DURING
  THE DAY BUT BACK TO PERIODS OF HEAVY SNOW LATE IN THE AFTERNOON
  AND EVENING. ONE TO 2 INCH PER HOUR ACCUMULATIONS ARE EXPECTED
  FOR SEVERAL HOURS FRIDAY NIGHT. NORTHERLY WINDS WILL GUST TO 30
  MPH CAUSING BLOWING AND DRIFTING. THERE IS A SMALL CHANCE FOR A
  THUNDERSTORM WITH THE SNOW.

* IMPACTS...VERY HAZARDOUS TRAVEL IS EXPECTED FOR THE EVENING
  COMMUTE AND WELL INTO THE NIGHT WITH VISIBILITY DOWN TO ONE
  QUARTER MILE AT TIMES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE.  THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

NJZ019-020-026-PAZ060-101-103>106-080430-
/O.NEW.KPHI.WS.W.0002.130208T2000Z-130209T1100Z/
NORTHWESTERN BURLINGTON-OCEAN-COASTAL OCEAN-BERKS-WESTERN CHESTER-
WESTERN MONTGOMERY-EASTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS-
INCLUDING THE CITIES OF...MOORESTOWN...MOUNT HOLLY...JACKSON...
LONG BEACH ISLAND...READING...HONEY BROOK...OXFORD...
COLLEGEVILLE...POTTSTOWN...NORRISTOWN...LANSDALE...CHALFONT...
PERKASIE...MORRISVILLE...DOYLESTOWN
320 PM EST THU FEB 7 2013

...WINTER STORM WARNING IN EFFECT FROM 3 PM FRIDAY TO 6 AM EST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 3 PM
FRIDAY TO 6 AM EST SATURDAY.

* LOCATIONS...SOUTHEAST PENNSYLVANIA WEST AND NORTH OF PHILADELPHIA
  INTO SOUTH CENTRAL NEW JERSEY.

* HAZARD TYPES...HEAVY SNOW. 

* ACCUMULATIONS...SNOW ACCUMULATION OF 4 TO 8 INCHES...ALONG WITH
  POSSIBLY A TRACE OF ICE.

* TIMING...ANY SNOW FRIDAY MORNING WILL CHANGE RAIN DURING THE
  DAYLIGHT HOURS THEN BACK TO HEAVY SNOW LATE IN THE DAY FRIDAY OR
  FRIDAY EVENING. ONE TO 2 INCH PER HOUR ACCUMULATIONS ARE POSSIBLE
  FOR A COUPLE OF HOURS FRIDAY NIGHT. NORTHERLY WINDS WILL GUST 30
  MPH CAUSING BLOWING AND DRIFTING. THERE IS A SMALL CHANCE FOR A
  THUNDERSTORM WITH THE SNOW.

* IMPACTS...VERY HAZARDOUS TRAVEL IS EXPECTED FOR THE FRIDAY
  EVENING COMMUTE AND WELL INTO THE NIGHT WITH VISIBILITY DOWN TO
  ONE QUARTER MILE AT TIMES. ISOLATED POWER OUTAGES ARE POSSIBLE.

* TEMPERATURES...MOSTLY JUST ABOVE FREEZING DURING THE DAY FALLING
  TO 25 TO 30 AT NIGHT.

* CONFIDENCE...THIS REGION IS PROBABLY GOING TO BE ON THE EDGE OF
  THE HEAVY SNOW AND AMOUNTS MAY VARY FROM WHAT IS CURRENTLY
  EXPECTED. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE.  THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

DEZ001-NJZ016>018-021>025-027-PAZ070-071-102-080430-
/O.NEW.KPHI.WW.Y.0008.130208T2200Z-130209T1100Z/
NEW CASTLE-SALEM-GLOUCESTER-CAMDEN-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-
SOUTHEASTERN BURLINGTON-DELAWARE-PHILADELPHIA-EASTERN CHESTER-
INCLUDING THE CITIES OF...WILMINGTON...PENNSVILLE...GLASSBORO...
CAMDEN...CHERRY HILL...MILLVILLE...HAMMONTON...
CAPE MAY COURT HOUSE...OCEAN CITY...ATLANTIC CITY...
WHARTON STATE FOREST...MEDIA...PHILADELPHIA...WEST CHESTER...
KENNET SQUARE
320 PM EST THU FEB 7 2013

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM FRIDAY TO 6 AM EST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 5 PM FRIDAY
TO 6 AM EST SATURDAY.

* LOCATIONS...NORTHERN DELAWARE...FAR SOUTHERN NEW JERSEY TO
  PHILADELPHIA. 

* HAZARD TYPES...SNOW

* ACCUMULATIONS...SNOW ACCUMULATION OF 2 TO 5 INCHES.

* TIMING...RAIN FRIDAY WILL CHANGE TO WET SNOW LATE IN THE DAY
  FRIDAY OR FRIDAY EVENING. THERE MAY BE A PERIOD OF ONE TO 2 INCH
  PER HOUR ACCUMULATIONS FRIDAY NIGHT. NORTHERLY WINDS WILL GUST
  30 MPH CAUSING SOME BLOWING AND DRIFTING. THERE IS A SMALL
  CHANCE FOR A THUNDERSTORM WITH THE SNOW.

* IMPACTS...VERY HAZARDOUS TRAVEL IS EXPECTED FOR THE FRIDAY
  EVENING COMMUTE AND WELL INTO THE NIGHT WITH VISIBILITY DOWN TO
  ONE QUARTER MILE AT TIMES. ISOLATED POWER OUTAGES ARE POSSIBLE.

* WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* TEMPERATURES...35 TO 40 DURING THE DAYLIGHT HOURS WILL FALL INTO
  THE UPPER 20S DURING THE SNOW CAUSING A VERY RAPID FREEZING OF
  ROAD SURFACES AS SNOW FALLS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$


DRAG

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 5, 11:46 PM ESTFreezing Rain AdvisoryPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more3 hr
Feb 6, 11:26 AM ESTSmall Craft AdvisoryPHI6 hr
Feb 6, 3:29 PM ESTGale WatchPHI23 hr
Feb 6, 3:29 PM ESTStorm WatchPHI23 hr

Nearby

Winter Storm Watches in New Jersey, 2013Winter Storm Watches in Pennsylvania, 2013Every winter storm watch in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.