Alert archive / New Jersey / Winter Storm Watches in 2014

Winter Storm Watch 3, NWS Philadelphia/Mount Holly

January 20, 20144 states

NWS Philadelphia/Mount Holly issued this winter storm watch at Jan 20, 2014, 3:36 AM EST for 4 states. It took effect at Jan 21, 2014, 7:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Jan 20, 2014, 3:36 AM EST (08:36 UTC)
In effect from
Jan 21, 2014, 7:00 AM EST
Expired
Jan 20, 2014, 2:58 PM EST
In force
Issued by
NWS Philadelphia/Mount Holly
All 27 counties

Kent County, DE, New Castle County, DE, Sussex County, DE, Caroline County, MD, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD, Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Salem County, NJ, Somerset County, NJ, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 69 km from the middle of the area, began a volume at 08:42 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

Wallops Is Stn, VA (KWAL), launched 00:00Z, 8.6 hours before the alert went out and 202 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, Wallops Is Stn, VA at 00:00Z on 2014-01-20Temperature 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, Wallops Is Stn, VA at 00:00Z on 2014-01-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 149 square meters per square second.193958Sfc1 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
1883 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
149 m²/s²
0-3 km storm-relative helicity
178 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.

845 
WWUS41 KPHI 200836
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
336 AM EST MON JAN 20 2014

...ACCUMULATING SNOWFALL EVENT BECOMING MORE LIKELY TUESDAY INTO
TUESDAY EVENING WITH COLD AIR TO FOLLOW...

DEZ001>004-MDZ008-012-015-019-020-NJZ012>027-PAZ070-071-102-104-
106-202100-
/O.NEW.KPHI.WS.A.0003.140121T1200Z-140122T0600Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-MIDDLESEX-WESTERN MONMOUTH-
EASTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-DELAWARE-PHILADELPHIA-EASTERN CHESTER-
EASTERN MONTGOMERY-LOWER BUCKS-
INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN...
REHOBOTH BEACH...ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...
DENTON...NEW BRUNSWICK...FREEHOLD...SANDY HOOK...TRENTON...
PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...
MOUNT HOLLY...JACKSON...MILLVILLE...HAMMONTON...
CAPE MAY COURT HOUSE...OCEAN CITY...ATLANTIC CITY...
LONG BEACH ISLAND...WHARTON STATE FOREST...MEDIA...PHILADELPHIA...
WEST CHESTER...KENNET SQUARE...NORRISTOWN...LANSDALE...
MORRISVILLE...DOYLESTOWN
336 AM EST MON JAN 20 2014

...WINTER STORM WATCH IN EFFECT FROM TUESDAY MORNING THROUGH LATE
TUESDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM TUESDAY MORNING THROUGH
LATE TUESDAY NIGHT.

* LOCATIONS...SOUTHEAST PENNSYLVANIA AND PORTIONS OF CENTRAL AND
  SOUTHERN NEW JERSEY.

* HAZARD TYPES...SNOW

* SNOW ACCUMULATIONS...4 TO 6 INCHES.

* TIMING...SNOWFALL WILL BEGIN TUESDAY MORNING AND CONTINUE INTO
  TUESDAY EVENING WITH HEAVIEST SNOWFALL EXPECTED TUESDAY
  AFTERNOON AND EVENING.

* IMPACTS...ACCUMULATING SNOWFALL COULD CAUSE PERIODS OF HAZARDOUS
  TRAVEL ACROSS THE AREA.

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

* TEMPERATURES...IN THE LOWER 20S THEN DROPPING INTO THE TEENS.

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.

&&

$$

PAZ054-055-202100-
/O.NEW.KPHI.WC.A.0002.140122T0600Z-140122T1600Z/
CARBON-MONROE-
INCLUDING THE CITIES OF...JIM THORPE...STROUDSBURG
336 AM EST MON JAN 20 2014

...WIND CHILL WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY MORNING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WIND
CHILL WATCH...WHICH IS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY MORNING.

* LOCATIONS...POCONO REGION OF NORTHEAST PENNSYLVANIA.

* WIND CHILL READINGS...AS LOW AS 20 TO 25 BELOW ZERO.

* TIMING...TUESDAY NIGHT INTO WEDNESDAY MORNING.

* IMPACTS...VERY LOW WIND CHILLS CAN QUICKLY CAUSE FROSTBITE TO
  EXPOSED SKIN AND LEAD TO HYPOTHERMIA.

* WINDS...NORTHWEST 15 TO 20 MPH WITH GUSTS UP TO 25 MPH.

* TEMPERATURES...SINGLE DIGITS WITH SOME LOCATIONS BELOW ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WATCH MEANS THE THERE IS THE POTENTIAL FOR A
COMBINATION OF VERY COLD AIR AND STRONG WINDS TO CREATE
DANGEROUSLY LOW WIND CHILL VALUES. MONITOR THE LATEST FORECASTS
AND WARNINGS FOR UPDATES ON THIS SITUATION.

&&

$$

ROBERTSON
3 follow-up statements
737 
WWUS41 KPHI 200846 CCA
WSWPHI

URGENT - WINTER WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
345 AM EST MON JAN 20 2014

...ACCUMULATING SNOWFALL EVENT BECOMING MORE LIKELY TUESDAY INTO
TUESDAY EVENING WITH COLD AIR TO FOLLOW...

DEZ001>004-MDZ008-012-015-019-020-NJZ012>027-PAZ070-071-102-104-
106-202115-
/O.COR.KPHI.WS.A.0003.140121T1200Z-140122T0600Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-MIDDLESEX-WESTERN MONMOUTH-
EASTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-DELAWARE-PHILADELPHIA-EASTERN CHESTER-
EASTERN MONTGOMERY-LOWER BUCKS-
INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN...
REHOBOTH BEACH...ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...
DENTON...NEW BRUNSWICK...FREEHOLD...SANDY HOOK...TRENTON...
PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...
MOUNT HOLLY...JACKSON...MILLVILLE...HAMMONTON...
CAPE MAY COURT HOUSE...OCEAN CITY...ATLANTIC CITY...
LONG BEACH ISLAND...WHARTON STATE FOREST...MEDIA...PHILADELPHIA...
WEST CHESTER...KENNET SQUARE...NORRISTOWN...LANSDALE...
MORRISVILLE...DOYLESTOWN
345 AM EST MON JAN 20 2014

...WINTER STORM WATCH IN EFFECT FROM TUESDAY MORNING THROUGH LATE
TUESDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM TUESDAY MORNING THROUGH
LATE TUESDAY NIGHT.

* LOCATIONS...SOUTHEAST PENNSYLVANIA...PORTIONS OF CENTRAL AND
  SOUTHERN NEW JERSEY...EASTERN SHORE OF MARYLAND...AND ALL OF
  DELAWARE.

* HAZARD TYPES...SNOW

* SNOW ACCUMULATIONS...4 TO 6 INCHES.

* TIMING...SNOWFALL WILL BEGIN TUESDAY MORNING AND CONTINUE INTO
  TUESDAY EVENING WITH HEAVIEST SNOWFALL EXPECTED TUESDAY
  AFTERNOON AND EVENING.

* IMPACTS...ACCUMULATING SNOWFALL COULD CAUSE PERIODS OF HAZARDOUS
  TRAVEL ACROSS THE AREA.

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

* TEMPERATURES...IN THE LOWER 20S THEN DROPPING INTO THE TEENS.

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.

&&

$$

PAZ054-055-202115-
/O.NEW.KPHI.WC.A.0002.140122T0600Z-140122T1600Z/
CARBON-MONROE-
INCLUDING THE CITIES OF...JIM THORPE...STROUDSBURG
345 AM EST MON JAN 20 2014

...WIND CHILL WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY MORNING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WIND
CHILL WATCH...WHICH IS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY MORNING.

* LOCATIONS...POCONO REGION OF NORTHEAST PENNSYLVANIA.

* WIND CHILL READINGS...AS LOW AS 20 TO 25 BELOW ZERO.

* TIMING...TUESDAY NIGHT INTO WEDNESDAY MORNING.

* IMPACTS...VERY LOW WIND CHILLS CAN QUICKLY CAUSE FROSTBITE TO
  EXPOSED SKIN AND LEAD TO HYPOTHERMIA.

* WINDS...NORTHWEST 15 TO 20 MPH WITH GUSTS UP TO 25 MPH.

* TEMPERATURES...SINGLE DIGITS WITH SOME LOCATIONS BELOW ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WATCH MEANS THE THERE IS THE POTENTIAL FOR A
COMBINATION OF VERY COLD AIR AND STRONG WINDS TO CREATE
DANGEROUSLY LOW WIND CHILL VALUES. MONITOR THE LATEST FORECASTS
AND WARNINGS FOR UPDATES ON THIS SITUATION.

&&

$$

ROBERTSON
473 
WWUS41 KPHI 201024
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
524 AM EST MON JAN 20 2014

...ACCUMULATING SNOWFALL EVENT BECOMING MORE LIKELY TUESDAY INTO
TUESDAY EVENING WITH COLD AIR TO FOLLOW...

NJZ008>010-PAZ101-103-105-202100-
/O.EXA.KPHI.WS.A.0003.140121T1200Z-140122T0600Z/
MORRIS-HUNTERDON-SOMERSET-WESTERN CHESTER-WESTERN MONTGOMERY-
UPPER BUCKS-
INCLUDING THE CITIES OF...MORRISTOWN...FLEMINGTON...SOMERVILLE...
HONEY BROOK...OXFORD...COLLEGEVILLE...POTTSTOWN...CHALFONT...
PERKASIE
524 AM EST MON JAN 20 2014

...WINTER STORM WATCH IN EFFECT FROM TUESDAY MORNING THROUGH LATE
TUESDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM TUESDAY MORNING THROUGH
LATE TUESDAY NIGHT.

* LOCATIONS...PORTIONS OF SOUTHEAST PENNSYLVANIA AND NORTH CENTRAL
  NEW JERSEY.

* HAZARD TYPES...SNOW

* SNOW ACCUMULATIONS...4 TO 7 INCHES IS POSSIBLE.

* TIMING...SNOWFALL WILL BEGIN TUESDAY MORNING AND CONTINUE INTO 
  TUESDAY EVENING WITH HEAVIEST SNOWFALL EXPECTED TUESDAY 
  AFTERNOON AND EVENING.

* IMPACTS...ACCUMULATING SNOWFALL COULD CAUSE PERIODS OF 
  HAZARDOUS TRAVEL ACROSS THE AREA.

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

* TEMPERATURES...IN THE LOW-20S DROPPING INTO THE TEENS.

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.

&&

$$

DEZ001>004-MDZ008-012-015-019-020-NJZ012>027-PAZ070-071-102-104-
106-202100-
/O.CON.KPHI.WS.A.0003.140121T1200Z-140122T0600Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-MIDDLESEX-WESTERN MONMOUTH-
EASTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-DELAWARE-PHILADELPHIA-EASTERN CHESTER-
EASTERN MONTGOMERY-LOWER BUCKS-
INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN...
REHOBOTH BEACH...ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...
DENTON...NEW BRUNSWICK...FREEHOLD...SANDY HOOK...TRENTON...
PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...
MOUNT HOLLY...JACKSON...MILLVILLE...HAMMONTON...
CAPE MAY COURT HOUSE...OCEAN CITY...ATLANTIC CITY...
LONG BEACH ISLAND...WHARTON STATE FOREST...MEDIA...PHILADELPHIA...
WEST CHESTER...KENNET SQUARE...NORRISTOWN...LANSDALE...
MORRISVILLE...DOYLESTOWN
524 AM EST MON JAN 20 2014

...WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH LATE TUESDAY NIGHT...

* LOCATIONS...SOUTHEAST PENNSYLVANIA...PORTIONS OF CENTRAL AND 
  SOUTHERN NEW JERSEY...EASTERN SHORE OF MARYLAND...AND ALL OF 
  DELAWARE.

* HAZARD TYPES...SNOW

* SNOW ACCUMULATIONS...4 TO 7 INCHES POSSIBLE.

* TIMING...SNOWFALL WILL BEGIN TUESDAY MORNING AND CONTINUE INTO 
  TUESDAY EVENING WITH HEAVIEST SNOWFALL EXPECTED TUESDAY 
  AFTERNOON AND EVENING.

* IMPACTS...ACCUMULATING SNOWFALL COULD CAUSE PERIODS OF 
  HAZARDOUS TRAVEL ACROSS THE AREA.

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

* TEMPERATURES...IN THE LOWER 20S.

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.

&&

$$

PAZ054-055-202100-
/O.CON.KPHI.WC.A.0002.140122T0600Z-140122T1600Z/
CARBON-MONROE-
INCLUDING THE CITIES OF...JIM THORPE...STROUDSBURG
524 AM EST MON JAN 20 2014

...WIND CHILL WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT
THROUGH WEDNESDAY MORNING...

* LOCATIONS...POCONO REGION OF NORTHEAST PENNSYLVANIA.

* WIND CHILL READINGS...AS LOW AS 20 BELOW.

* TIMING...TUESDAY NIGHT INTO WEDNESDAY MORNING.

* IMPACTS...VERY LOW WIND CHILLS CAN QUICKLY CAUSE FROSTBITE TO 
  EXPOSED SKIN AND LEAD TO HYPOTHERMIA.

* WINDS...NORTHWEST 15 TO 20 MPH WITH GUSTS UP TO 25 MPH.

* TEMPERATURES...SINGLE DIGITS WITH SOME LOCATIONS BELOW ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WATCH MEANS THE THERE IS THE POTENTIAL FOR A
COMBINATION OF VERY COLD AIR AND STRONG WINDS TO CREATE
DANGEROUSLY LOW WIND CHILL VALUES. MONITOR THE LATEST FORECASTS
AND WARNINGS FOR UPDATES ON THIS SITUATION.

&&

$$
211 
WWUS41 KPHI 201958
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
258 PM EST MON JAN 20 2014

...SIGNIFICANT SNOWFALL EXPECTED TUESDAY AND TUESDAY NIGHT
FOLLOWED IMMEDIATELY BY BITTERLY COLD AIR...

.A FAST MOVING BUT POTENT WEATHER SYSTEM WILL BRING SNOW TO
OUR ENTIRE AREA TUESDAY AND TUESDAY NIGHT. AS THE STORM
STRENGTHENS TO OUR EAST LATER TUESDAY, THE WINDS WILL INCREASE
RESULTING IN AREAS OF BLOWING AND DRIFTING SNOW. AS THE STORM
CONTINUES TO EXIT, BITTERLY COLD AIR WILL QUICKLY SETTLE IN
TUESDAY AND TUESDAY NIGHT.

PAZ054-055-211000-
/O.CAN.KPHI.WC.A.0002.140122T0600Z-140122T1600Z/
/O.NEW.KPHI.WW.Y.0004.140121T1500Z-140122T0600Z/
CARBON-MONROE-
INCLUDING THE CITIES OF...JIM THORPE...STROUDSBURG
258 PM EST MON JAN 20 2014

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM TUESDAY TO 1 AM
EST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW, WHICH IS IN EFFECT FROM 10 AM TUESDAY
TO 1 AM EST WEDNESDAY. THE WIND CHILL WATCH HAS BEEN CANCELLED.

* SNOW ACCUMULATIONS...2 TO 4 INCHES.

* TIMING...SNOW IS EXPECTED TO DEVELOP BY MID TO LATE TUESDAY
  MORNING, THEN CONTINUE THROUGH AT LEAST THE FIRST HALF OF
  TUESDAY NIGHT.

* IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED
  ROADS, MUCH COLDER AIR MOVING IN AND PERIODS OF LOW VISIBILITY.
  AREAS OF BLOWING AND DRIFTING SNOW WILL DEVELOP ESPECIALLY
  TUESDAY NIGHT AS WINDS INCREASE. THE TUESDAY AFTERNOON AND
  EVENING RUSH HOUR WILL BE SIGNIFICANTLY IMPACTED.

* WINDS...NORTHEAST 15 TO 20 MPH WITH GUSTS TO 25 MPH TUESDAY
  AFTERNOON, THEN BECOMING NORTH AND NORTHWEST TUESDAY NIGHT.

* TEMPERATURES...AROUND 10 DEGREES TUESDAY, THEN DROPPING TO ZERO
  TO 5 BELOW ZERO TUESDAY NIGHT.

* WIND CHILLS...ZERO TO 5 BELOW ZERO TUESDAY, THEN DROPPING TO 10
  BELOW TO 20 BELOW ZERO TUESDAY NIGHT. THESE VALUES ARE VERY
  DANGEROUS AND CAN QUICKLY CAUSE FROSTBITE TO EXPOSED SKIN AND LEAD
  TO HYPOTHERMIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE
TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED
VISIBILITIES.

AREAS OF BLOWING AND DRIFTING SNOW WILL REDUCE THE VISIBILITY
ESPECIALLY IN OPEN AREAS TUESDAY NIGHT. THIS WILL RESULT IN SNOW
BLOWING BACK ONTO PREVIOUSLY PLOWED ROADWAYS. USE EXTRA CAUTION
WHILE DRIVING.

&&

$$

DEZ001>004-MDZ008-012-015-019-020-NJZ008>010-012>027-PAZ070-071-
101>106-211000-
/O.UPG.KPHI.WS.A.0003.140121T1200Z-140122T0600Z/
/O.NEW.KPHI.WS.W.0002.140121T1500Z-140122T1100Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-DELAWARE-PHILADELPHIA-WESTERN CHESTER-
EASTERN CHESTER-WESTERN MONTGOMERY-EASTERN MONTGOMERY-UPPER BUCKS-
LOWER BUCKS-
INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN...
REHOBOTH BEACH...ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...
DENTON...MORRISTOWN...FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...
FREEHOLD...SANDY HOOK...TRENTON...PENNSVILLE...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...JACKSON...
MILLVILLE...HAMMONTON...CAPE MAY COURT HOUSE...OCEAN CITY...
ATLANTIC CITY...LONG BEACH ISLAND...WHARTON STATE FOREST...
MEDIA...PHILADELPHIA...HONEY BROOK...OXFORD...WEST CHESTER...
KENNET SQUARE...COLLEGEVILLE...POTTSTOWN...NORRISTOWN...
LANSDALE...CHALFONT...PERKASIE...MORRISVILLE...DOYLESTOWN
258 PM EST MON JAN 20 2014

...WINTER STORM WARNING IN EFFECT FROM 10 AM TUESDAY TO 6 AM EST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
STORM WARNING FOR SNOW, WHICH IS IN EFFECT FROM 10 AM TUESDAY TO
6 AM EST WEDNESDAY. THE WINTER STORM WATCH IS NO LONGER IN
EFFECT.

* SNOW ACCUMULATIONS...5 TO 9 INCHES.

* TIMING...SNOW WILL OVERSPREAD THE AREA TOWARD LATE TUESDAY
  MORNING AND THE MIDDAY HOURS, THEN CONTINUE THROUGH MUCH OF
  TUESDAY NIGHT. THE HEAVIEST SNOWFALL IS EXPECTED TUESDAY
  AFTERNOON AND EVENING, WITH SNOWFALL RATES OF AROUND AN INCH PER
  HOUR.

* IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS
  AND PERIODS OF LOW VISIBILITY. AREAS OF BLOWING AND DRIFTING
  SNOW WILL DEVELOP ESPECIALLY LATER TUESDAY AFTERNOON AND TUESDAY
  NIGHT AS WINDS INCREASE, RESULTING IN SIGNIFICANTLY REDUCED
  VISIBILITIES AT TIMES. THE TUESDAY AFTERNOON AND EVENING RUSH
  HOUR WILL BE SIGNIFICANTLY IMPACTED.

* WINDS...NORTHEAST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH TUESDAY
  AFTERNOON, BECOMING NORTH AND NORTHWEST TUESDAY NIGHT.

* TEMPERATURES...MAINLY IN THE 20S TUESDAY, THEN FALLING THROUGH
  THE TEENS AND SINGLE DIGITS TUESDAY NIGHT.

* WIND CHILLS...MAINLY AROUND 10 DEGREES TUESDAY, THEN DROPPING
  TO AROUND 10 BELOW ZERO TUESDAY NIGHT. THESE VALUES CAN QUICKLY
  CAUSE FROSTBITE TO EXPOSED SKIN AND LEAD TO HYPOTHERMIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

AREAS OF BLOWING AND DRIFTING SNOW WILL GREATLY REDUCE THE
VISIBILITY ESPECIALLY IN OPEN AREAS LATER TUESDAY AFTERNOON AND
TUESDAY NIGHT. THIS WILL RESULT IN SNOW BLOWING BACK ONTO
PREVIOUSLY PLOWED ROADWAYS. USE EXTRA CAUTION WHILE DRIVING.

&&

$$

NJZ001-007-PAZ060>062-211000-
/O.NEW.KPHI.WW.Y.0004.140121T1500Z-140122T0600Z/
SUSSEX-WARREN-BERKS-LEHIGH-NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...READING...
ALLENTOWN...BETHLEHEM...EASTON
258 PM EST MON JAN 20 2014

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM TUESDAY TO 1 AM
EST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW, WHICH IS IN EFFECT FROM 10 AM TUESDAY
TO 1 AM EST WEDNESDAY.

* SNOW ACCUMULATIONS...4 TO 6 INCHES.

* TIMING...SNOW WILL OVERSPREAD THE AREA TOWARD MID TO LATE
  TUESDAY MORNING, THEN CONTINUE THROUGH AT LEAST THE FIRST HALF
  OF TUESDAY NIGHT.

* IMPACTS...TRAVEL WILL BECOME HAZARDOUS DUE TO SNOW COVERED ROADS
  AND PERIODS OF VERY LOW VISIBILITY. AREAS OF BLOWING AND
  DRIFTING SNOW WILL DEVELOP ESPECIALLY TUESDAY NIGHT AS WINDS
  INCREASE. THE TUESDAY AFTERNOON AND EVENING RUSH HOUR WILL BE
  SIGNIFICANTLY IMPACTED.

* WINDS...NORTHEAST 15 TO 20 MPH WITH GUSTS TO 25 MPH TUESDAY
  AFTERNOON, BECOMING NORTH AND NORTHWEST TUESDAY NIGHT.

* TEMPERATURES...MAINLY IN THE TEENS TUESDAY, THEN DROPPING
  THROUGH THE SINGLE DIGITS TUESDAY NIGHT.

* WIND CHILLS...MAINLY IN THE SINGLE DIGITS TUESDAY, THEN DROPPING
  TO 10 BELOW TO 15 BELOW ZERO TUESDAY NIGHT. THESE DANGEROUS VALUES
  CAN QUICKLY CAUSE FROSTBITE TO EXPOSED SKIN AND LEAD TO
  HYPOTHERMIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE
TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED
VISIBILITIES.

AREAS OF BLOWING AND DRIFTING SNOW WILL REDUCE THE VISIBILITY
ESPECIALLY IN OPEN AREAS TUESDAY NIGHT. THIS WILL RESULT IN SNOW
BLOWING BACK ONTO PREVIOUSLY PLOWED ROADWAYS. USE EXTRA CAUTION
WHILE DRIVING.

&&

$$

GORSE

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 20, 2:58 PM ESTWinter Storm WarningPHIKent, New Castle, Sussex37 hr
Jan 20, 3:41 AM ESTGale WatchPHI12 hr
Jan 20, 2:58 PM ESTWinter Weather AdvisoryPHISussex, Warren31 hr
Jan 20, 3:47 PM ESTGale WarningPHI44 hr
Jan 20, 3:36 AM ESTWind Chill WatchPHICarbon, Monroe11 hr

Nearby

Winter Storm Watches in New Jersey, 2014Winter Storm Watches in Pennsylvania, 2014Winter Storm Watches in Maryland, 2014Every winter storm watch in 2014

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.