Alert archive / New Jersey / Winter Storm Warnings in 2018

Winter Storm Warning 9, NWS Philadelphia/Mount Holly

December 5, 2018Atlantic County, New Jersey

NWS Philadelphia/Mount Holly issued this winter storm warning at Dec 5, 2018, 12:46 PM EST for Atlantic County, New Jersey. It was in force for 5 hr. 5 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
Dec 5, 2018, 12:46 PM EST (17:46 UTC)
Expired
Dec 5, 2018, 5:48 PM EST
In force
5 hr
Issued by
NWS Philadelphia/Mount Holly

County Atlantic County, NJ

The radar

The Philadelphia radar (KDIX), 56 km from the middle of the area, began a volume at 17:50 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
Dec 5, 1:00 PM ESTSNOW 2.2Absecon, NJ
Dec 5, 1:13 PM ESTSNOW 3Egg Harbor Township, NJ
Dec 5, 1:15 PM ESTSNOW 2.8Atlantic City, NJ
Dec 5, 1:26 PM ESTSNOW 36 Se Mays Landing, NJ
Dec 5, 4:27 PM ESTSNOW 5.5Egg Harbor Township, NJ

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

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 5.8 hours before the alert went out and 184 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 12:00Z on 2018-12-05Temperature 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 12:00Z on 2018-12-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1393 m above ground
0-6 km bulk shear
112 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

985 
WWUS41 KPHI 051746
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
1246 PM EST Wed Dec 5 2018

NJZ022-025-052300-
/O.UPG.KPHI.WW.Y.0021.000000T0000Z-181205T2300Z/
/O.NEW.KPHI.WS.W.0009.181205T1746Z-181205T2300Z/
Atlantic-Coastal Atlantic-
Including the cities of Hammonton and Atlantic City
1246 PM EST Wed Dec 5 2018

...WINTER STORM WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING...

* WHAT...Heavy snow. Total snow accumulations of 3 to 6 inches.

* WHERE...Atlantic and Coastal Atlantic counties.

* WHEN...Snow will continue, heavy at times with up to an inch per
  hour, before tapering off later this afternoon into early this 
  evening.

* ADDITIONAL DETAILS...Plan on hazardous road conditions. The
  hazardous conditions should impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous. 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.

&&

$$

NJZ016>018-021-023-024-052300-
/O.EXA.KPHI.WW.Y.0021.000000T0000Z-181205T2300Z/
Salem-Gloucester-Camden-Cumberland-Cape May-
Atlantic Coastal Cape May-
Including the cities of Pennsville, Glassboro, Camden, 
Cherry Hill, Millville, Cape May Court House, and Ocean City
1246 PM EST Wed Dec 5 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM EST THIS
EVENING...

* WHAT...Snow. Total snow accumulations of 1 to 3 inches.

* WHERE...Portions of southern New Jersey. The southern portions
  of Salem, Cumberland and Cape May counties should have the 
  least amount of snow.

* WHEN...Snow will continue this afternoon at varying intensity.
  The will end later this afternoon into early this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The 
  hazardous conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

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

&&

$$

NJZ020-027-052300-
/O.CON.KPHI.WW.Y.0021.000000T0000Z-181205T2300Z/
Ocean-Southeastern Burlington-
Including the cities of Jackson and Wharton State Forest
1246 PM EST Wed Dec 5 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...

* WHAT...Snow. Total snow accumulations of 1 to 3 inches.

* WHERE...Southeastern Burlington and Ocean counties.

* WHEN...Snow will continue at varying intensity and spread
  northward some, then taper off later this afternoon into early 
  this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The 
  hazardous conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

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

&&

$$

NJZ026-052300-
/O.CON.KPHI.WW.Y.0021.000000T0000Z-181205T2300Z/
Coastal Ocean-
Including the city of Long Beach Island
1246 PM EST Wed Dec 5 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...

* WHAT...Snow. Total snow accumulations of 1 to 2 inches.

* WHERE...Coastal Ocean county.

* WHEN...Snow in the southern part of the county will expand
  northward some this afternoon before ending late this afternoon
  into early this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The 
  hazardous conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

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

&&

$$

For more information from the National Weather Service visit
www.weather.gov/phi/winter

Gorse
2 follow-up statements
376 
WWUS41 KPHI 052029
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
329 PM EST Wed Dec 5 2018

NJZ016>018-052130-
/O.CAN.KPHI.WW.Y.0021.000000T0000Z-181205T2300Z/
Salem-Gloucester-Camden-
Including the cities of Pennsville, Glassboro, Camden, 
and Cherry Hill
329 PM EST Wed Dec 5 2018

...WINTER WEATHER ADVISORY IS CANCELLED...

Snow continues to rapidly end from west to east, therefore the
advisory has been cancelled. Use caution however as there may 
still be some slippery spots on any untreated surfaces.

$$

NJZ022-025-052300-
/O.CON.KPHI.WS.W.0009.000000T0000Z-181205T2300Z/
Atlantic-Coastal Atlantic-
Including the cities of Hammonton and Atlantic City
329 PM EST Wed Dec 5 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...

* WHAT...Heavy snow. Additional snow accumulations of up to one
  inch, with total snow accumulations of 3 to 6 inches.

* WHERE...Coastal Atlantic and Atlantic counties.

* WHEN...Snow will continue to quickly decrease in intensity and
  end from west to east into this evening.

* ADDITIONAL DETAILS...Plan on hazardous road conditions. The
  hazardous conditions will impact this evenings commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous. 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.

&&

$$

NJZ020-021-023-024-027-052300-
/O.CON.KPHI.WW.Y.0021.000000T0000Z-181205T2300Z/
Ocean-Cumberland-Cape May-Atlantic Coastal Cape May-
Southeastern Burlington-
Including the cities of Jackson, Millville, Cape May Court House,
Ocean City, and Wharton State Forest
329 PM EST Wed Dec 5 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...

* WHAT...Snow. Additional snow accumulations of up to one inch,
  with total snow accumulations of 1 to 4 inches.

* WHERE...Portions of southern New Jersey.

* WHEN...Snow will continue to quickly end from west to east
  through late this afternoon.

* ADDITIONAL DETAILS...Plan on slippery road conditions. The
  hazardous conditions should impact this evenings commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

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

&&

$$

NJZ026-052300-
/O.CON.KPHI.WW.Y.0021.000000T0000Z-181205T2300Z/
Coastal Ocean-
Including the city of Long Beach Island
329 PM EST Wed Dec 5 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...

* WHAT...Snow. Additional snow accumulations of up to one inch,
  with total snow accumulations of 1 to 3 inches. The highest
  amounts across the southern areas.

* WHERE...Coastal Ocean county.

* WHEN...Snow will quickly end through late this afternoon.

* ADDITIONAL DETAILS...Plan on slippery road conditions especially
  the southern areas. The hazardous conditions could impact this
  evenings commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

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

&&

$$

For more information from the National Weather Service visit
www.weather.gov/phi/winter

Gorse
218 
WWUS41 KPHI 052248
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
548 PM EST Wed Dec 5 2018

NJZ022-025-060000-
/O.CAN.KPHI.WS.W.0009.000000T0000Z-181205T2300Z/
Atlantic-Coastal Atlantic-
Including the cities of Hammonton and Atlantic City
548 PM EST Wed Dec 5 2018

...WINTER STORM WARNING IS CANCELLED...

Snow is tapering off. Little additional snow will accumulate.

$$

NJZ020-021-023-024-026-027-060000-
/O.CAN.KPHI.WW.Y.0021.000000T0000Z-181205T2300Z/
Ocean-Cumberland-Cape May-Atlantic Coastal Cape May-Coastal Ocean-
Southeastern Burlington-
Including the cities of Jackson, Millville, Cape May Court House,
Ocean City, Long Beach Island, and Wharton State Forest
548 PM EST Wed Dec 5 2018

...WINTER WEATHER ADVISORY IS CANCELLED...

Snow continues to end.

$$

For more information from the National Weather Service visit
www.weather.gov/phi/winter

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 5, 2:40 AM ESTWinter Weather AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more15 hr
Dec 5, 2:03 PM ESTSpecial Weather StatementPHIAtlantic57 min
Dec 5, 3:27 PM ESTSmall Craft AdvisoryPHI42 hr

Nearby

Winter Storm Warnings in New Jersey, 2018Every winter storm warning in 2018

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.