Alert archive / New Jersey / Winter Weather Advisories in 2021

Winter Weather Advisory 8, NWS Philadelphia/Mount Holly

February 14, 2021New Castle County, Delaware; 10 counties in New Jersey; 5 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this winter weather advisory at Feb 14, 2021, 3:15 PM EST for New Castle County, Delaware; 10 counties in New Jersey; 5 counties in Pennsylvania. It took effect at Feb 15, 2021, 1:00 PM EST. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued
Feb 14, 2021, 3:15 PM EST (20:15 UTC)
In effect from
Feb 15, 2021, 1:00 PM EST
Expired
Feb 16, 2021, 5:52 AM EST
In force
17 hr
Issued by
NWS Philadelphia/Mount Holly

Counties New Castle County, DE, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth 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), 50 km from the middle of the area, began a volume at 20:17 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, 8.3 hours before the alert went out and 199 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 2021-02-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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 2021-02-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 179 square meters per square second.1939587897117136Sfc1 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
470 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
179 m²/s²
0-3 km storm-relative helicity
282 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

110 
WWUS41 KPHI 142015
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
315 PM EST Sun Feb 14 2021

NJZ001-007-008-PAZ054-055-061-062-151100-
/O.NEW.KPHI.IS.W.0001.210215T2300Z-210216T1500Z/
Sussex-Warren-Morris-Carbon-Monroe-Lehigh-Northampton-
Including the cities of Newton, Washington, Morristown, 
Jim Thorpe, Stroudsburg, Allentown, Bethlehem, and Easton
315 PM EST Sun Feb 14 2021

...ICE STORM WARNING IN EFFECT FROM 6 PM MONDAY TO 10 AM EST
TUESDAY...

* WHAT...Significant icing expected. Total ice accumulations of
  three tenths to one half of an inch with up to one inch of snow
  and sleet.
  

* WHERE...Portions of northern New Jersey and east central and 
  northeast Pennsylvania.

* WHEN...From 6 PM Monday to 10 AM EST Tuesday.

* IMPACTS...Power outages and tree damage are likely due to the
  ice. Travel could be extremely difficult. The hazardous
  conditions will impact the morning commute on Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. If you must travel, keep an extra
flashlight, food, and water in your vehicle in case of an
emergency. Prepare for possible power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NJZ009-010-PAZ060-101-103-105-151100-
/O.NEW.KPHI.IS.W.0001.210215T2300Z-210216T1500Z/
Hunterdon-Somerset-Berks-Western Chester-Western Montgomery-
Upper Bucks-
Including the cities of Flemington, Somerville, Reading, 
Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, 
and Perkasie
315 PM EST Sun Feb 14 2021

...ICE STORM WARNING IN EFFECT FROM 6 PM MONDAY TO 10 AM EST
TUESDAY...

* WHAT...Significant icing expected. Total ice accumulations of
  two tenths to three tenths of an inch with up to one inch of
  snow and sleet.

* WHERE...Portions of northern New Jersey and east central and 
  southeast Pennsylvania.

* WHEN...From 6 PM Monday to 10 AM EST Tuesday.

* IMPACTS...Power outages and tree damage are likely due to the
  ice. Travel could be extremely difficult. The hazardous
  conditions will impact the morning commute on Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. If you must travel, keep an extra
flashlight, food, and water in your vehicle in case of an
emergency. Prepare for possible power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NJZ012-015-PAZ070-071-102-104-106-151100-
/O.NEW.KPHI.WW.Y.0008.210215T1800Z-210216T1000Z/
Middlesex-Mercer-Delaware-Philadelphia-Eastern Chester-
Eastern Montgomery-Lower Bucks-
Including the cities of New Brunswick, Trenton, Media, 
Philadelphia, West Chester, Kennett Square, Norristown, Lansdale,
Morrisville, and Doylestown
315 PM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM MONDAY TO 5 AM EST
TUESDAY...

* WHAT...Freezing rain expected. Total ice accumulations of one 
  tenth to two tenths of an inch.

* WHERE...Portions of central New Jersey and southeast 
  Pennsylvania.

* WHEN...From 1 PM Monday to 5 AM EST Tuesday.

* IMPACTS...Difficult travel conditions are possible. The
  hazardous conditions could impact the morning commute on 
  Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

DEZ001-NJZ013-016>020-027-151100-
/O.NEW.KPHI.WW.Y.0008.210215T1800Z-210216T0700Z/
New Castle-Western Monmouth-Salem-Gloucester-Camden-
Northwestern Burlington-Ocean-Southeastern Burlington-
Including the cities of Wilmington, Freehold, Pennsville, 
Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson,
and Wharton State Forest
315 PM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM MONDAY TO 2 AM EST
TUESDAY...

* WHAT...Freezing rain expected. Total ice accumulations of up to 
  one tenth of an inch.

* WHERE...Portions of central and southern New Jersey and 
  northern Delaware.

* WHEN...From 1 PM Monday to 2 AM EST Tuesday.

* IMPACTS...Difficult travel conditions are possible. The
  hazardous conditions could impact the morning commute on 
  Tuesday.

* ADDITIONAL DETAILS...Due to mixing with plain rain, ice 
  accumulations may vary widely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
6 follow-up statements
704 
WWUS41 KPHI 150935
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
435 AM EST Mon Feb 15 2021

NJZ001-007-008-PAZ054-055-061-062-152245-
/O.CON.KPHI.IS.W.0001.210215T2300Z-210216T1500Z/
Sussex-Warren-Morris-Carbon-Monroe-Lehigh-Northampton-
Including the cities of Newton, Washington, Morristown, 
Jim Thorpe, Stroudsburg, Allentown, Bethlehem, and Easton
435 AM EST Mon Feb 15 2021

...ICE STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
10 AM EST TUESDAY...

* WHAT...Significant icing expected. Total ice accumulations of
  two to four tenths of an inch with up to one inch of snow and 
  sleet.

* WHERE...Portions of northern New Jersey and east central and 
  northeast Pennsylvania.

* WHEN...From 6 PM this evening to 10 AM EST Tuesday.

* IMPACTS...Power outages and tree damage are likely due to the 
  ice. Travel could be nearly impossible. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. Prepare for possible power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NJZ009-010-PAZ060-101-103-105-152245-
/O.CON.KPHI.IS.W.0001.210215T2300Z-210216T1500Z/
Hunterdon-Somerset-Berks-Western Chester-Western Montgomery-
Upper Bucks-
Including the cities of Flemington, Somerville, Reading, 
Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, 
and Perkasie
435 AM EST Mon Feb 15 2021

...ICE STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
10 AM EST TUESDAY...

* WHAT...Significant icing expected. Total ice accumulations of up
  to three tenths of an inch with up to one inch of snow and 
  sleet.

* WHERE...Portions of northern and northwest New Jersey and east 
  central and southeast Pennsylvania.

* WHEN...From 6 PM this evening to 10 AM EST Tuesday.

* IMPACTS...Power outages and tree damage are likely due to the 
  ice. Travel could be nearly impossible. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. Prepare for possible power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NJZ012-015-PAZ070-071-102-104-106-152245-
/O.CON.KPHI.WW.Y.0008.210215T1800Z-210216T1000Z/
Middlesex-Mercer-Delaware-Philadelphia-Eastern Chester-
Eastern Montgomery-Lower Bucks-
Including the cities of New Brunswick, Trenton, Media, 
Philadelphia, West Chester, Kennett Square, Norristown, Lansdale,
Morrisville, and Doylestown
435 AM EST Mon Feb 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 5 AM EST TUESDAY...

* WHAT...Freezing rain expected. Total ice accumulations of 
  around one tenth of an inch.

* WHERE...Portions of central and northern New Jersey and 
  southeast Pennsylvania.

* WHEN...From 1 PM this afternoon to 5 AM EST Tuesday.

* IMPACTS...Difficult travel conditions are possible. The 
  hazardous conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

DEZ001-NJZ013-016>020-027-152245-
/O.CON.KPHI.WW.Y.0008.210215T1800Z-210216T0700Z/
New Castle-Western Monmouth-Salem-Gloucester-Camden-
Northwestern Burlington-Ocean-Southeastern Burlington-
Including the cities of Wilmington, Freehold, Pennsville, 
Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson,
and Wharton State Forest
435 AM EST Mon Feb 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 2 AM EST TUESDAY...

* WHAT...Freezing rain expected. Total ice accumulations of up to
  one tenth of an inch.

* WHERE...Portions of central and southern New Jersey and 
  northern Delaware.

* WHEN...From 1 PM this afternoon to 2 AM EST Tuesday.

* IMPACTS...The hazardous conditions could impact the evening 
  commute.

* ADDITIONAL DETAILS...Ice accumulations likely to greatly vary 
  as a transition to plain rain occurs late this afternoon into 
  tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
482 
WWUS41 KPHI 152032
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
332 PM EST Mon Feb 15 2021



NJZ001-007-008-PAZ054-055-061-062-161200-
/O.CON.KPHI.IS.W.0001.210215T2300Z-210216T1500Z/
Sussex-Warren-Morris-Carbon-Monroe-Lehigh-Northampton-
Including the cities of Newton, Washington, Morristown, 
Jim Thorpe, Stroudsburg, Allentown, Bethlehem, and Easton
332 PM EST Mon Feb 15 2021

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST TUESDAY...

* WHAT...Significant icing expected. Total snow and sleet 
  accumulations of up to one inch and ice accumulations of two 
  tenths to four tenths of an inch.

* WHERE...Portions of northern New Jersey and east central and 
  northeast Pennsylvania.

* WHEN...Until 10 AM EST Tuesday.

* IMPACTS...Power outages and tree damage are likely due to the
  ice. Travel could be extremely difficult. The hazardous
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...Sleet and freezing rain will move into the
  area through the first half of this evening before changing to
  mainly freezing rain by the overnight. Precipitation may
  eventually change to a period of all rain in places by Tuesday 
  morning before winding down. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. Prepare for possible power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NJZ009-010-PAZ060-101-103-105-161200-
/O.CON.KPHI.IS.W.0001.210215T2300Z-210216T1500Z/
Hunterdon-Somerset-Berks-Western Chester-Western Montgomery-
Upper Bucks-
Including the cities of Flemington, Somerville, Reading, 
Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, 
and Perkasie
332 PM EST Mon Feb 15 2021

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST TUESDAY...

* WHAT...Significant icing expected. Ice accumulations of up to 
  one quarter of an inch.

* WHERE...Portions of northern and northwest New Jersey and east 
  central and southeast Pennsylvania.

* WHEN...Until 10 AM EST Tuesday.

* IMPACTS...Power outages and tree damage are likely due to the
  ice. Travel could be extremely difficult. The hazardous 
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...Freezing rain will move into the region
  from west to east through the first half of this evening and
  will continue for several hours before changing to rain from
  south to north overnight into Tuesday morning. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. Prepare for possible power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NJZ012-015-PAZ070-071-102-104-106-161000-
/O.CON.KPHI.WW.Y.0008.000000T0000Z-210216T1000Z/
Middlesex-Mercer-Delaware-Philadelphia-Eastern Chester-
Eastern Montgomery-Lower Bucks-
Including the cities of New Brunswick, Trenton, Media, 
Philadelphia, West Chester, Kennett Square, Norristown, Lansdale,
Morrisville, and Doylestown
332 PM EST Mon Feb 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST
TUESDAY...

* WHAT...Freezing rain. Ice accumulations of up to one tenth of 
  an inch.

* WHERE...Portions of central New Jersey and southeast 
  Pennsylvania.

* WHEN...Until 5 AM EST Tuesday.

* IMPACTS...Difficult travel conditions are possible. The
  hazardous conditions could impact the morning commute on 
  Tuesday.

* ADDITIONAL DETAILS...A mix of rain and freezing rain will move
  into the region from west to east early this evening as
  temperatures drop to right around freezing. Freezing rain may
  continue for several hours before changing to rain from south to
  north overnight. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

DEZ001-NJZ013-016>020-027-160700-
/O.CON.KPHI.WW.Y.0008.000000T0000Z-210216T0700Z/
New Castle-Western Monmouth-Salem-Gloucester-Camden-
Northwestern Burlington-Ocean-Southeastern Burlington-
Including the cities of Wilmington, Freehold, Pennsville, 
Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson,
and Wharton State Forest
332 PM EST Mon Feb 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
TUESDAY...

* WHAT...Freezing rain. Ice accumulations of a light glaze.

* WHERE...Portions of central and southern New Jersey and 
  northern Delaware.

* WHEN...Until 2 AM EST Tuesday.

* IMPACTS...Very slippery sidewalks, roads and bridges are
  possible into the overnight. 

* ADDITIONAL DETAILS...A mix of rain and freezing rain will move
  into the region through the first half of this evening with
  temperatures expected to be right around freezing. A change to
  all rain will occur from south to north late this evening into
  the overnight. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
310 
WWUS41 KPHI 160001
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
701 PM EST Mon Feb 15 2021

NJZ009-010-PAZ101-103-105-161000-
/O.CAN.KPHI.IS.W.0001.000000T0000Z-210216T1500Z/
/O.EXA.KPHI.WW.Y.0008.000000T0000Z-210216T1000Z/
Hunterdon-Somerset-Western Chester-Western Montgomery-Upper Bucks-
Including the cities of Flemington, Somerville, Honey Brook, 
Oxford, Collegeville, Pottstown, Chalfont, and Perkasie
701 PM EST Mon Feb 15 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM EST TUESDAY...
...ICE STORM WARNING IS CANCELLED...

* WHAT...Freezing rain. Additional ice accumulations of one 
  tenth to two tenths of an inch.

* WHERE...In New Jersey, Hunterdon and Somerset. In 
  Pennsylvania, Western Chester, Western Montgomery and Upper 
  Bucks.

* WHEN...Until 5 AM EST Tuesday.

* IMPACTS...Difficult travel conditions are possible. The 
  hazardous conditions could impact the morning commute.

* ADDITIONAL DETAILS...A mix of rain and freezing rain will move 
  into the region from west to east early this evening as 
  temperatures drop to right around freezing. Freezing rain may 
  continue for several hours before changing to rain from south 
  to north overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

DEZ001-NJZ013-016>018-020-027-160115-
/O.CAN.KPHI.WW.Y.0008.000000T0000Z-210216T0700Z/
New Castle-Western Monmouth-Salem-Gloucester-Camden-Ocean-
Southeastern Burlington-
Including the cities of Wilmington, Freehold, Pennsville, 
Glassboro, Camden, Cherry Hill, Jackson, and Wharton State Forest
701 PM EST Mon Feb 15 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Temperatures are above freezing and slowly rising. Any
precipitation that falls will fall as plain rain.

$$

NJZ001-007-008-PAZ054-055-061-062-161200-
/O.CON.KPHI.IS.W.0001.000000T0000Z-210216T1500Z/
Sussex-Warren-Morris-Carbon-Monroe-Lehigh-Northampton-
Including the cities of Newton, Washington, Morristown, 
Jim Thorpe, Stroudsburg, Allentown, Bethlehem, and Easton
701 PM EST Mon Feb 15 2021

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST TUESDAY...

* WHAT...Significant icing. Additional ice accumulations of two 
  tenths to four tenths of an inch.

* WHERE...Portions of northern New Jersey and east central and 
  northeast Pennsylvania.

* WHEN...Until 10 AM EST Tuesday.

* IMPACTS...Power outages and tree damage are likely due to the 
  ice. Travel could be extremely difficult. The hazardous 
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...Sleet and freezing rain will move into the
  area through the first half of this evening before changing to 
  mainly freezing rain by the overnight. Precipitation may 
  eventually change to a period of all rain in places by Tuesday 
  morning before winding down.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. Prepare for possible power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

PAZ060-161200-
/O.CON.KPHI.IS.W.0001.000000T0000Z-210216T1500Z/
Berks-
Including the city of Reading
701 PM EST Mon Feb 15 2021

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST TUESDAY...

* WHAT...Significant icing. Additional ice accumulations of one 
  tenth to three tenths of an inch.

* WHERE...Berks.

* WHEN...Until 10 AM EST Tuesday.

* IMPACTS...Power outages and tree damage are likely due to the 
  ice. Travel could be extremely difficult. The hazardous 
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...Freezing rain will move into the region 
  from west to east through the first half of this evening and 
  will continue for several hours before changing to rain from 
  south to north overnight into Tuesday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. Prepare for possible power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NJZ012-015-PAZ070-071-102-104-106-161000-
/O.CON.KPHI.WW.Y.0008.000000T0000Z-210216T1000Z/
Middlesex-Mercer-Delaware-Philadelphia-Eastern Chester-
Eastern Montgomery-Lower Bucks-
Including the cities of New Brunswick, Trenton, Media, 
Philadelphia, West Chester, Kennett Square, Norristown, Lansdale,
Morrisville, and Doylestown
701 PM EST Mon Feb 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST
TUESDAY...

* WHAT...Freezing rain. Additional ice accumulations of around 
  one tenth of an inch.

* WHERE...Portions of central and northern New Jersey and 
  southeast Pennsylvania.

* WHEN...Until 5 AM EST Tuesday.

* IMPACTS...Difficult travel conditions are possible.

* ADDITIONAL DETAILS...A mix of rain and freezing rain will move 
  into the region from west to east early this evening as 
  temperatures drop to right around freezing. Freezing rain may 
  continue for several hours before changing to rain from south 
  to north overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NJZ019-160700-
/O.CON.KPHI.WW.Y.0008.000000T0000Z-210216T0700Z/
Northwestern Burlington-
Including the cities of Moorestown and Mount Holly
701 PM EST Mon Feb 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
TUESDAY...

* WHAT...Freezing rain. Additional ice accumulations of a light 
  glaze.

* WHERE...Northwestern Burlington.

* WHEN...Until 2 AM EST Tuesday.

* IMPACTS...Very slippery sidewalks, roads and bridges are 
  possible.

* ADDITIONAL DETAILS...A mix of rain and freezing rain will move 
  into the region through the first half of this evening with 
  temperatures expected to be right around freezing. A change to 
  all rain will occur from south to north late this evening into 
  the overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

MPS
521 
WWUS41 KPHI 160556
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
1256 AM EST Tue Feb 16 2021

NJZ019-160700-
/O.CAN.KPHI.WW.Y.0008.000000T0000Z-210216T0700Z/
Northwestern Burlington-
Including the cities of Moorestown and Mount Holly
1256 AM EST Tue Feb 16 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Temperatures have risen above freezing in Burlington County. As a
result, there is no longer a concern for ice development 
overnight and the Winter Weather Advisory has been cancelled.

$$

PAZ070-071-160700-
/O.CAN.KPHI.WW.Y.0008.000000T0000Z-210216T1000Z/
Delaware-Philadelphia-
Including the cities of Media and Philadelphia
1256 AM EST Tue Feb 16 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Temperatures have risen above freezing in Delaware County and in 
Philadelphia County. As a result, there is no longer a concern for
ice development overnight and the Winter Weather Advisory has 
been cancelled.

$$

NJZ001-007-008-PAZ054-055-061-062-161500-
/O.CON.KPHI.IS.W.0001.000000T0000Z-210216T1500Z/
Sussex-Warren-Morris-Carbon-Monroe-Lehigh-Northampton-
Including the cities of Newton, Washington, Morristown, 
Jim Thorpe, Stroudsburg, Allentown, Bethlehem, and Easton
1256 AM EST Tue Feb 16 2021

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS 
MORNING...

* WHAT...Significant icing. Additional ice accumulations of two 
  tenths to four tenths of an inch.

* WHERE...Portions of northern New Jersey and east central and 
  northeast Pennsylvania.

* WHEN...Until 10 AM EST Tuesday.

* IMPACTS...Power outages and tree damage are likely due to the 
  ice. Travel could be extremely difficult. The hazardous 
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...Freezing rain will continue overnight. 
  Precipitation may eventually change to a period of all rain in 
  places by morning before winding down.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an 
emergency. Prepare for possible power outages.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

PAZ060-161500-
/O.CON.KPHI.IS.W.0001.000000T0000Z-210216T1500Z/
Berks-
Including the city of Reading
1256 AM EST Tue Feb 16 2021

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS 
MORNING...

* WHAT...Significant icing. Additional ice accumulations of one 
  tenth to three tenths of an inch.

* WHERE...Berks County.

* WHEN...Until 10 AM EST Tuesday.

* IMPACTS...Power outages and tree damage are likely due to the 
  ice. Travel could be extremely difficult. The hazardous 
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...Freezing rain will continue overnight. 
  Precipitation may eventually change to a period of all rain in 
  places by morning before winding down.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an 
emergency. Prepare for possible power outages.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NJZ009-010-012-015-PAZ101>106-161000-
/O.CON.KPHI.WW.Y.0008.000000T0000Z-210216T1000Z/
Hunterdon-Somerset-Middlesex-Mercer-Western Chester-
Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks-
Lower Bucks-
Including the cities of Flemington, Somerville, New Brunswick, 
Trenton, Honey Brook, Oxford, West Chester, Kennett Square, 
Collegeville, Pottstown, Norristown, Lansdale, Chalfont, 
Perkasie, Morrisville, and Doylestown
1256 AM EST Tue Feb 16 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST EARLY
THIS MORNING...

* WHAT...Freezing rain. Additional ice accumulations of one tenth
  to two tenths of an inch.

* WHERE...In New Jersey, Hunterdon and Somerset. In Pennsylvania,
  Western Chester, Western Montgomery and Upper Bucks.

* WHEN...Until 5 AM EST Tuesday.

* IMPACTS...Difficult travel conditions are possible. The 
  hazardous conditions could impact the morning commute.

* ADDITIONAL DETAILS...A mix of rain and freezing rain will change
  to all rain by morning before ending.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible 
power outages.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
427 
WWUS41 KPHI 160826
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
326 AM EST Tue Feb 16 2021

NJZ012-015-PAZ102-104-106-160930-
/O.CAN.KPHI.WW.Y.0008.000000T0000Z-210216T1000Z/
Middlesex-Mercer-Eastern Chester-Eastern Montgomery-Lower Bucks-
Including the cities of New Brunswick, Trenton, West Chester, 
Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown
326 AM EST Tue Feb 16 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Temperatures have risen above freezing in the New Jersey counties
of Middlesex and Mercer. Temperatures have also risen above 
freezing in lower Bucks County, lower Montgomery County and 
eastern Chester County in Pennsylvania. As a result, there is no 
longer a concern for ice development in those areas early this 
morning and the Winter Weather Advisory has been cancelled.

$$

NJZ001-007-008-PAZ054-055-061-062-161400-
/O.EXT.KPHI.IS.W.0001.000000T0000Z-210216T1400Z/
Sussex-Warren-Morris-Carbon-Monroe-Lehigh-Northampton-
Including the cities of Newton, Washington, Morristown, 
Jim Thorpe, Stroudsburg, Allentown, Bethlehem, and Easton
326 AM EST Tue Feb 16 2021

...ICE STORM WARNING NOW IN EFFECT UNTIL 9 AM EST THIS MORNING...

* WHAT...Significant icing. Total ice accumulations up to two 
  tenths to four tenths of an inch.

* WHERE...The New Jersey counties of Sussex, Warren and Morris, 
  and the Pennsylvania counties of Monroe, Carbon, Northampton and
  Lehigh.

* WHEN...Until 9:00 AM this morning.

* IMPACTS...Power outages and tree damage are possible due to the
  ice. Travel could be difficult into this morning's commute.

* ADDITIONAL DETAILS...Temperatures are forecast to rise 
  gradually above freezing early this morning, with the 
  precipitation ending by 9:00 AM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. Prepare for possible power 
outages.

The latest road conditions for your state can be obtained by 
calling 5 1 1.

&&

$$

PAZ060-161400-
/O.EXT.KPHI.IS.W.0001.000000T0000Z-210216T1400Z/
Berks-
Including the city of Reading
326 AM EST Tue Feb 16 2021

...ICE STORM WARNING NOW IN EFFECT UNTIL 9 AM EST THIS MORNING...

* WHAT...Significant icing. Total ice accumulations up to one to
  three tenths of an inch.

* WHERE...Berks County, Pennsylvania.

* WHEN...Until 9:00 AM this morning.

* IMPACTS...Power outages and tree damage are possible due to the
  ice. Travel could be difficult into this morning's commute.

* ADDITIONAL DETAILS...Temperatures are forecast to rise 
  gradually above freezing early this morning, with the 
  precipitation ending by 9:00 AM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. Prepare for possible power 
outages.

The latest road conditions for your state can be obtained by 
calling 5 1 1.

&&

$$

NJZ009-010-PAZ101-103-105-161100-
/O.EXT.KPHI.WW.Y.0008.000000T0000Z-210216T1100Z/
Hunterdon-Somerset-Western Chester-Western Montgomery-Upper Bucks-
Including the cities of Flemington, Somerville, Honey Brook, 
Oxford, Collegeville, Pottstown, Chalfont, and Perkasie
326 AM EST Tue Feb 16 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM EST EARLY
THIS MORNING...

* WHAT...Freezing rain. Total ice accumulations up to one tenth 
  to two tenths of an inch.

* WHERE...The New Jersey counties of Somerset and Hunterdon. 
  Also, in Pennsylvania, upper Bucks County, upper Montgomery 
  County and western Chester County.

* WHEN...Until 6:00 AM this morning.

* IMPACTS...Travel could be difficult into this morning's 
  commute.

* ADDITIONAL DETAILS...Temperatures are forecast to rise gradually
  above freezing early this morning, with the rain ending by 9:00
  AM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use extra caution if driving.

The latest road conditions for your state can be obtained by 
calling 5 1 1.

&&

$$

Iovino
344 
WWUS41 KPHI 161052
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
552 AM EST Tue Feb 16 2021

NJZ009-010-PAZ101-103-105-161200-
/O.CAN.KPHI.WW.Y.0008.000000T0000Z-210216T1100Z/
Hunterdon-Somerset-Western Chester-Western Montgomery-Upper Bucks-
Including the cities of Flemington, Somerville, Honey Brook, 
Oxford, Collegeville, Pottstown, Chalfont, and Perkasie
552 AM EST Tue Feb 16 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Temperatures have risen above freezing and the rain is beginning 
to move out of the region. As a result, the Winter Weather 
Advisory has been cancelled.

$$

NJZ001-007-008-PAZ054-055-061-062-161400-
/O.CON.KPHI.IS.W.0001.000000T0000Z-210216T1400Z/
Sussex-Warren-Morris-Carbon-Monroe-Lehigh-Northampton-
Including the cities of Newton, Washington, Morristown, 
Jim Thorpe, Stroudsburg, Allentown, Bethlehem, and Easton
552 AM EST Tue Feb 16 2021

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 9 AM EST THIS 
MORNING...

* WHAT...Significant icing. Total ice accumulations up to two 
  tenths to four tenths of an inch.

* WHERE...The New Jersey counties of Sussex, Warren and Morris, 
  and the Pennsylvania counties of Monroe, Carbon, Northampton and
  Lehigh.

* WHEN...Until 9:00 AM this morning.

* IMPACTS...Power outages and tree damage are possible due to the
  ice. Travel could be difficult into this morning's commute.

* ADDITIONAL DETAILS...Temperatures are forecast to rise 
  gradually above freezing early this morning, with the 
  precipitation ending by 9:00 AM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. Prepare for possible power 
outages.

The latest road conditions for your state can be obtained by 
calling 5 1 1.

&&

$$

PAZ060-161400-
/O.CON.KPHI.IS.W.0001.000000T0000Z-210216T1400Z/
Berks-
Including the city of Reading
552 AM EST Tue Feb 16 2021

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 9 AM EST THIS 
MORNING...

* WHAT...Significant icing. Total ice accumulations up to one to 
  three tenths of an inch.

* WHERE...Berks County, Pennsylvania.

* WHEN...Until 9:00 AM this morning.

* IMPACTS...Power outages and tree damage are possible due to the
  ice. Travel could be difficult into this morning's commute.

* ADDITIONAL DETAILS...Temperatures are forecast to rise 
  gradually above freezing early this morning, with the 
  precipitation ending by 9:00 AM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. Prepare for possible power 
outages.

The latest road conditions for your state can be obtained by 
calling 5 1 1.

&&

$$

Iovino

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 14, 3:15 PM ESTIce Storm WarningPHIHunterdon, Morris, Somerset, Sussex, Warren41 hr

Nearby

Winter Weather Advisories in New Jersey, 2021Winter Weather Advisories in Pennsylvania, 2021Winter Weather Advisories in Delaware, 2021Every winter weather advisory in 2021

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.