Alert archive / New Jersey / Winter Storm Warnings in 2023

Winter Storm Warning 1, NWS Philadelphia/Mount Holly

February 27, 2023Morris County, Sussex County, New Jersey; Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this winter storm warning at Feb 27, 2023, 3:50 AM EST for Morris County, Sussex County, New Jersey; Monroe County, Pennsylvania. It took effect at Feb 27, 2023, 5:00 PM EST. It was in force for 16 hr. 41 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 27, 2023, 3:50 AM EST (08:50 UTC)
In effect from
Feb 27, 2023, 5:00 PM EST
Expired
Feb 28, 2023, 9:02 AM EST
In force
16 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Morris County, NJ, Sussex County, NJ, Monroe County, PA

The radar

The Philadelphia radar (KDIX), 125 km from the middle of the area, began a volume at 08:50 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.

What was reported inside it

TimeReportWhereRemark
Feb 27, 9:00 PM ESTSNOW 1.5Wantage Twp, NJPICTURE OF 1.5 INCHES OF SNOW IN WANTAGE, NJ.
Feb 27, 9:00 PM ESTSNOW 2.5Mount Pocono, PATRAINED SPOTTER REPORTS 2.5 INCHES OF SNOW IN NORTH MOUNT POCONO AT 9 PM.
Feb 27, 10:30 PM ESTSNOW 2Effort, PAREPORT PASSED ALONG FROM BROADCAST MEDIA.
Feb 27, 10:30 PM ESTSNOW 3Reeders, PAREPORT PASSED ALONG FROM BROADCAST MEDIA.
Feb 28, 12:20 AM ESTSNOW 2Chatham, NJSLEET AND SNOW MIX AT TIME OF OBSERVATION.
Feb 28, 12:45 AM ESTSNOW 2Boonton, NJ2 INCHES OF A HEAVY AND COMPACTED SNOW.
Feb 28, 12:45 AM ESTSNOW 4.34 Wsw Wantage Twp, NJLIGHT SNOW AT TIME OF OBSERVATION.
Feb 28, 3:00 AM ESTSNOW 61 Sse Pocono Pines, PAPICTURE SENT IN VIA SOCIAL MEDIA OF A 6 INCH MEASUREMENT IN POCONO PINES.
Feb 28, 4:10 AM ESTSNOW 4.4Franklin, NJPICTURE SENT IN VIA SOCIAL MEDIA. ELEVATION 730 FEET.
Feb 28, 4:15 AM ESTSNOW 5.84 Wsw Wantage Twp, NJUPDATE TO PREVIOUS REPORT. ADDITIONAL ACCUMULATION OF 1.5 INCHES SINCE PREVIOUS REPORT AT 12:45 AM EDT.
Feb 28, 5:00 AM ESTSNOW 5.3Rockaway, NJ
Feb 28, 5:15 AM ESTSNOW 4.4Denville, NJ
Feb 28, 5:30 AM ESTSNOW 6.4Wantage Twp, NJPICTURE SENT IN VIA SOCIAL MEDIA.
Feb 28, 5:39 AM ESTSNOW 6.31 Nnw Pocono Summit, PA
Feb 28, 6:00 AM ESTSNOW 4Andover, NJPICTURE OF MEASUREMENT SENT IN VIA SOCIAL MEDIA.
Feb 28, 6:15 AM ESTSNOW 3.8Kunkletown, PA
Feb 28, 6:30 AM ESTSNOW 4.3Sparta, NJ
Feb 28, 6:55 AM ESTSNOW 5.12 Nne Brookside, NJ
Feb 28, 7:00 AM ESTSNOW 2.51 Ne Chatham, NJCOCORAHS STATION NJ-MS-102 CHATHAM 0.6 NE.
Feb 28, 7:00 AM ESTSNOW 3.21 Wsw Madison, NJCOCORAHS STATION NJ-MS-59 MADISON 0.8 WSW.
Feb 28, 7:00 AM ESTSNOW 41 S Ironia, NJCOCORAHS STATION NJ-MS-123 MENDHAM 3.2 NNW.
Feb 28, 7:00 AM ESTSNOW 41 W Morristown, NJCOCORAHS STATION NJ-MS-117 1 W MORRISTOWN.
Feb 28, 7:00 AM ESTSNOW 43 Wsw Schooleys Mountai, NJCOCORAHS STATION NJ-MS-61 WASHINGTON TWP. 3.6 W.
Feb 28, 7:00 AM ESTSNOW 4Newton, NJ
Feb 28, 7:00 AM ESTSNOW 5.12 Nne Brookside, NJCOCORAHS STATION NJ-MS-110 RANDOLPH TWP 2.2 SE.
Feb 28, 7:00 AM ESTSNOW 5.21 Ese Ironia, NJCOCORAHS STATION NJ-MS-73 RANDOLPH TWP 2.2 SW.
Feb 28, 7:00 AM ESTSNOW 5.31 Sw Mountain Lakes, NJCOCORAHS STATION NJ-MS-71 DENVILLE TWP 1.5 ESE.
Feb 28, 7:00 AM ESTSNOW 5.42 Wsw Jackson Twp, PA
Feb 28, 7:00 AM ESTSNOW 5.51 S Hardyston Twp, NJCOCORAHS STATION NJ-SS-7 HARDYSTON TWP 3.2 SE.
Feb 28, 7:00 AM ESTSNOW 5.81 Ssw Brookside, NJ
Feb 28, 7:00 AM ESTSNOW 61 Se Wantage Twp, NJCOCORAHS STATION NJ-SS-39 SUSSEX 1.3 N.
Feb 28, 7:00 AM ESTSNOW 6.24 Wsw Wantage Twp, NJUPDATES PREVIOUS SNOW REPORT FROM 4 WSW WANTAGE TWP. ADDITIONAL ACCUMULATION OF 0.4 INCHES SINCE PREVIOUS REPORT AT 4 AM.
Feb 28, 7:00 AM ESTSNOW 6.41 E Montague, NJCOCORAHS STATION NJ-SS-28 MONTAGUE TWP 2.7 WNW.
Feb 28, 7:00 AM ESTSNOW 7.51 N Mount Pocono, PACOCORAHS STATION PA-MN-16 MOUNT POCONO 0.7 N.
Feb 28, 7:17 AM ESTSNOW 5Kinnelon, NJ
Feb 28, 7:30 AM ESTSNOW 5.3Randolph, NJ
Feb 28, 7:40 AM ESTSNOW 62 S Kinnelon, NJCOCORAHS STATION NJ-MS-16 KINNELON 1.4 SE.
Feb 28, 8:00 AM ESTSNOW 4.21 N Lake Hopatcong, NJCOCORAHS STATION NJ-MS-94 HOPATCONG 2.1 ENE.
Feb 28, 8:00 AM ESTSNOW 4.61 Se Lafayette Twp, NJCOCORAHS STATION NJ-SS-57 SPARTA TWP 3.3 NW.
Feb 28, 8:00 AM ESTSNOW 6.21 S High Point, NJ
Feb 28, 8:17 AM ESTSNOW 4Andover, NJPICTURE SENT VIA SOCIAL MEDIA.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 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 00:00Z on 2023-02-27Temperature 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 00:00Z on 2023-02-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 437 square meters per square second.1939587897117136156Sfc1 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
868 m above ground
0-6 km bulk shear
111 kt
0-1 km storm-relative helicity
437 m²/s²
0-3 km storm-relative helicity
568 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

489 
WWUS41 KPHI 270850
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
350 AM EST Mon Feb 27 2023

NJZ001-PAZ055-272200-
/O.UPG.KPHI.WW.Y.0005.230227T2200Z-230228T1800Z/
/O.NEW.KPHI.WS.W.0001.230227T2200Z-230228T1800Z/
Sussex-Monroe-
Including the cities of Newton and Stroudsburg
350 AM EST Mon Feb 27 2023

...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
1 PM EST TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 8 
  inches.

* WHERE...In New Jersey, Sussex. In Pennsylvania, Monroe.

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

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact this evenings commute and also the
  Tuesday morning commute.

* ADDITIONAL DETAILS...Snowfall rates should reach around an inch
  per hour tonight. The highest snowfall totals should be at
  locations above 1500 feet in elevation. Some sleet may also mix
  in at times for portions of the area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

NJZ008-272200-
/O.UPG.KPHI.WW.Y.0005.230227T2200Z-230228T1500Z/
/O.NEW.KPHI.WS.W.0001.230227T2200Z-230228T1800Z/
Morris-
Including the city of Morristown
350 AM EST Mon Feb 27 2023

...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
1 PM EST TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 8 
  inches.

* WHERE...Morris.

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

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact this evenings commute and also the
  Tuesday morning commute.

* ADDITIONAL DETAILS...Snowfall rates should reach around an inch
  per hour tonight. The highest snowfall totals should be at the
  higher elevations. Some sleet may also mix in for a time.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

NJZ007-PAZ054-062-272200-
/O.CON.KPHI.WW.Y.0005.230227T2200Z-230228T1500Z/
Warren-Carbon-Northampton-
Including the cities of Washington, Jim Thorpe, Bethlehem, 
and Easton
350 AM EST Mon Feb 27 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 10 AM EST TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 
  inches.

* WHERE...In New Jersey, Warren. In Pennsylvania, Carbon and 
  Northampton.

* WHEN...From 5 PM this afternoon to 10 AM EST Tuesday.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact this evenings commute and also the
  Tuesday morning commute.

* ADDITIONAL DETAILS...Snowfall rates could reach around an inch 
  per hour at times tonight. Some sleet should mix at times 
  tonight for parts of the area.

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.

&&

$$

NJZ009-010-PAZ061-105-272200-
/O.CON.KPHI.WW.Y.0005.230227T2200Z-230228T1000Z/
Hunterdon-Somerset-Lehigh-Upper Bucks-
Including the cities of Flemington, Somerville, Allentown, 
Chalfont, and Perkasie
350 AM EST Mon Feb 27 2023

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

* WHAT...Mixed precipitation expected. Total snow accumulations of
  2 to 4 inches.

* WHERE...In New Jersey, Hunterdon and Somerset. In 
  Pennsylvania, Lehigh and Upper Bucks.

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

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact this evenings commute.

* ADDITIONAL DETAILS...Snowfall rates could reach up to one inch
  per hour at times tonight. The snow will mix with or even change
  to sleet and rain at times.

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.

&&

$$

Gorse
5 follow-up statements
289 
WWUS41 KPHI 272032
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
332 PM EST Mon Feb 27 2023

NJZ001-008-PAZ055-280945-
/O.CON.KPHI.WS.W.0001.230227T2200Z-230228T1800Z/
Sussex-Morris-Monroe-
Including the cities of Newton, Morristown, and Stroudsburg
332 PM EST Mon Feb 27 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST
TUESDAY...

* WHAT...Heavy snow expected, mixed at times with sleet and
  freezing rain. Total snow accumulations of 5 to 8 inches and 
  ice accumulations of up to a light glaze.

* WHERE...In New Jersey, Sussex and Morris. In Pennsylvania, 
  Monroe.

* WHEN...Until 1 PM EST Tuesday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Snowfall rates should reach around an inch
  per hour tonight. The highest snowfall totals should be at
  locations above 1500 feet in elevation. Some sleet and freezing
  rain is also likely to mix in at times for portions of the 
  area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

NJZ007-PAZ054-062-280945-
/O.EXT.KPHI.WW.Y.0005.230227T2200Z-230228T1800Z/
Warren-Carbon-Northampton-
Including the cities of Washington, Jim Thorpe, Bethlehem, 
and Easton
332 PM EST Mon Feb 27 2023

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 1 PM EST TUESDAY...

* WHAT...Snow mixed with sleet and freezing rain. Total snow
  accumulations of 3 to 5 inches and ice accumulations of a light
  glaze.

* WHERE...In New Jersey, Warren. In Pennsylvania, Carbon and 
  Northampton.

* WHEN...Until 1 PM EST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Snowfall rates could reach around an inch
  per hour at times tonight. Some sleet and freezing rain will 
  mix at times tonight for parts of the area.


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.

&&

$$

NJZ009-010-PAZ061-105-280945-
/O.EXT.KPHI.WW.Y.0005.230227T2200Z-230228T1200Z/
Hunterdon-Somerset-Lehigh-Upper Bucks-
Including the cities of Flemington, Somerville, Allentown, 
Chalfont, and Perkasie
332 PM EST Mon Feb 27 2023

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 7 AM EST TUESDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations of
  1 to 3 inches and ice accumulations of up to a light glaze.

* WHERE...In New Jersey, Hunterdon and Somerset. In 
  Pennsylvania, Lehigh and Upper Bucks.

* WHEN...Until 7 AM EST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Snowfall rates could reach up to one inch
  per hour at times tonight but snow will eventually change to a
  wintry mix of snow, sleet, freezing rain and even rain for some
  portions of the area. 


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.

&&

$$

Fitzsimmons
046 
WWUS41 KPHI 280220
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
920 PM EST Mon Feb 27 2023

NJZ001-008-PAZ055-281500-
/O.CON.KPHI.WS.W.0001.000000T0000Z-230228T1800Z/
Sussex-Morris-Monroe-
Including the cities of Newton, Morristown, and Stroudsburg
920 PM EST Mon Feb 27 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST 
TUESDAY...

* WHAT...Heavy snow expected, mixed at times with sleet and 
  freezing rain. Total snow accumulations of 5 to 8 inches and ice
  accumulations of up to a light glaze.

* WHERE...In New Jersey, Sussex and Morris. In Pennsylvania, 
  Monroe.

* WHEN...Until 1 PM EST Tuesday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Snowfall rates should reach around an inch
  per hour tonight. The highest snowfall totals should be at 
  locations above 1500 feet in elevation. Some sleet and freezing 
  rain is also likely to mix in at times for portions of the area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency.

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

&&

$$

NJZ007-PAZ054-062-281500-
/O.CON.KPHI.WW.Y.0005.000000T0000Z-230228T1800Z/
Warren-Carbon-Northampton-
Including the cities of Washington, Jim Thorpe, Bethlehem, 
and Easton
920 PM EST Mon Feb 27 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST 
TUESDAY...

* WHAT...Snow mixed with sleet and freezing rain. Total snow 
  accumulations of 3 to 5 inches and ice accumulations of a light 
  glaze.

* WHERE...In New Jersey, Warren. In Pennsylvania, Carbon and 
  Northampton.

* WHEN...Until 1 PM EST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Snowfall rates could reach around an inch 
  per hour at times tonight. Some sleet and freezing rain will mix
  at times tonight for parts of the area.

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.

&&

$$

NJZ009-010-PAZ061-105-281200-
/O.CON.KPHI.WW.Y.0005.000000T0000Z-230228T1200Z/
Hunterdon-Somerset-Lehigh-Upper Bucks-
Including the cities of Flemington, Somerville, Allentown, 
Chalfont, and Perkasie
920 PM EST Mon Feb 27 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST 
TUESDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  of 1 to 3 inches and ice accumulations of up to a light glaze.

* WHERE...In New Jersey, Hunterdon and Somerset. In Pennsylvania,
  Lehigh and Upper Bucks.

* WHEN...Until 7 AM EST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Snowfall rates could reach up to one inch 
  per hour at times tonight but snow will eventually change to a 
  wintry mix of snow, sleet, freezing rain and even rain for some 
  portions of the area.

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.

&&

$$
348 
WWUS41 KPHI 280838
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
338 AM EST Tue Feb 28 2023

NJZ001-008-PAZ055-281800-
/O.CON.KPHI.WS.W.0001.000000T0000Z-230228T1800Z/
Sussex-Morris-Monroe-
Including the cities of Newton, Morristown, and Stroudsburg
338 AM EST Tue Feb 28 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

* WHAT...Heavy snow expected, mixed at times with sleet and
  freezing rain. Total snow accumulations of 5 to 8 inches and 
  ice accumulations of up to a light glaze.

* WHERE...In New Jersey, Sussex and Morris. In Pennsylvania, 
  Monroe.

* WHEN...Until 1 PM EST this afternoon.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...The highest snowfall totals should be at 
  locations above 1500 feet in elevation. Some sleet and freezing 
  rain is also likely to mix in at times for portions of the area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

NJZ007-PAZ054-062-281800-
/O.CON.KPHI.WW.Y.0005.000000T0000Z-230228T1800Z/
Warren-Carbon-Northampton-
Including the cities of Washington, Jim Thorpe, Bethlehem, 
and Easton
338 AM EST Tue Feb 28 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

* WHAT...Snow mixed with sleet and freezing rain. Total snow 
  accumulations of 3 to 5 inches and ice accumulations of a light 
  glaze.

* WHERE...In New Jersey, Warren. In Pennsylvania, Carbon and 
  Northampton.

* WHEN...Until 1 PM EST this afternoon.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...Some sleet and freezing rain will mix at
  times for parts of the area.

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.

&&

$$

NJZ009-010-PAZ061-105-281200-
/O.CON.KPHI.WW.Y.0005.000000T0000Z-230228T1200Z/
Hunterdon-Somerset-Lehigh-Upper Bucks-
Including the cities of Flemington, Somerville, Allentown, 
Chalfont, and Perkasie
338 AM EST Tue Feb 28 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  of 1 to 3 inches and ice accumulations of up to a light glaze.

* WHERE...In New Jersey, Hunterdon and Somerset. In 
  Pennsylvania, Lehigh and Upper Bucks.

* WHEN...Until 7 AM EST this morning.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...Precipitation has changed to rain already
  for parts of the area, while other areas continue to see a mixture
  of freezing rain, sleet and snow.

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.

&&

$$
479 
WWUS41 KPHI 281134
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
634 AM EST Tue Feb 28 2023

NJZ009-010-PAZ061-105-281245-
/O.EXP.KPHI.WW.Y.0005.000000T0000Z-230228T1200Z/
Hunterdon-Somerset-Lehigh-Upper Bucks-
Including the cities of Flemington, Somerville, Allentown, 
Chalfont, and Perkasie
634 AM EST Tue Feb 28 2023

...WINTER WEATHER ADVISORY WILL EXPIRE AT 7 AM EST THIS MORNING...

Precipitation has mostly tapered off with temperatures near
freezing. Thus, additional impacts from wintry weather will be
minimal.

$$

NJZ001-008-PAZ055-281800-
/O.CON.KPHI.WS.W.0001.000000T0000Z-230228T1800Z/
Sussex-Morris-Monroe-
Including the cities of Newton, Morristown, and Stroudsburg
634 AM EST Tue Feb 28 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

* WHAT...Heavy snow expected, mixed at times with sleet and
  freezing rain. Total snow accumulations of 5 to 8 inches and 
  ice accumulations of up to a light glaze.

* WHERE...In New Jersey, Sussex and Morris. In Pennsylvania, 
  Monroe.

* WHEN...Until 1 PM EST this afternoon.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...The highest snowfall totals should be at
  locations above 1500 feet in elevation. Some sleet and freezing
  rain is also likely to mix in at times for portions of the area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

NJZ007-PAZ054-062-281800-
/O.CON.KPHI.WW.Y.0005.000000T0000Z-230228T1800Z/
Warren-Carbon-Northampton-
Including the cities of Washington, Jim Thorpe, Bethlehem, 
and Easton
634 AM EST Tue Feb 28 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

* WHAT...Snow mixed with sleet and freezing rain. Total snow 
  accumulations of 3 to 5 inches and ice accumulations of a light 
  glaze.

* WHERE...In New Jersey, Warren. In Pennsylvania, Carbon and 
  Northampton.

* WHEN...Until 1 PM EST this afternoon.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...Some sleet and freezing rain will mix at
  times for parts of the area.

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.

&&

$$
497 
WWUS41 KPHI 281402
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
902 AM EST Tue Feb 28 2023

NJZ001-008-PAZ055-281515-
/O.CAN.KPHI.WS.W.0001.000000T0000Z-230228T1800Z/
Sussex-Morris-Monroe-
Including the cities of Newton, Morristown, and Stroudsburg
902 AM EST Tue Feb 28 2023

...WINTER STORM WARNING IS CANCELLED...

Light snow showers or a light wintry mix remain possible this 
morning. Untreated surfaces may still be icy.

$$

NJZ007-PAZ054-062-281515-
/O.CAN.KPHI.WW.Y.0005.000000T0000Z-230228T1800Z/
Warren-Carbon-Northampton-
Including the cities of Washington, Jim Thorpe, Bethlehem, 
and Easton
902 AM EST Tue Feb 28 2023

...WINTER WEATHER ADVISORY IS CANCELLED...

Light snow showers or a light wintry mix remain possible this 
morning. Untreated surfaces may still be icy.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 27, 3:45 AM ESTGale WarningPHI29 hr

Nearby

Winter Storm Warnings in New Jersey, 2023Winter Storm Warnings in Pennsylvania, 2023Every winter storm warning in 2023

Sources

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