Alert archive / Pennsylvania / Freezing Rain Advisories in 2012

Freezing Rain Advisory 3, NWS Philadelphia/Mount Holly

December 7, 20125 counties in Pennsylvania; Morris County, Sussex County, Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this freezing rain advisory at Dec 7, 2012, 3:20 AM EST for 5 counties in Pennsylvania; Morris County, Sussex County, Warren County, New Jersey. It took effect at Dec 7, 2012, 7:00 AM EST. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Dec 7, 2012, 3:20 AM EST (08:20 UTC)
In effect from
Dec 7, 2012, 7:00 AM EST
Expired
Dec 7, 2012, 11:00 AM EST
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 122 km from the middle of the area, began a volume at 08:21 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 00:00Z, 8.3 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, Brookhaven, NY at 00:00Z on 2012-12-07Temperature 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 2012-12-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
1919 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
99 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.

818 
WWUS41 KPHI 070820
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
320 AM EST FRI DEC 7 2012

PAZ054-055-060>062-071600-
/O.NEW.KPHI.ZR.Y.0003.121207T1200Z-121207T1600Z/
CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-
INCLUDING THE CITIES OF...JIM THORPE...STROUDSBURG...READING...
ALLENTOWN...BETHLEHEM...EASTON
320 AM EST FRI DEC 7 2012

...FREEZING RAIN ADVISORY IN EFFECT FROM 7 AM TO 11 AM EST THIS
MORNING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FREEZING
RAIN ADVISORY. IT IS IN EFFECT FROM 700 AM UNTIL 1100 AM.

* LOCATIONS...THE POCONOS, THE LEHIGH VALLEY AND BERKS COUNTY.

* HAZARD TYPE...LIGHT FREEZING RAIN.

* ICE ACCUMULATIONS...A TRACE TO A COUPLE HUNDREDTHS OF AN INCH.

* TIMING...THE PRECIPITATION SHOULD SPREAD INTO THE REGION FROM
  THE WEST IN THE 700 AM TO 900 AM TIME FRAME.

* IMPACTS...THERE MAY BE A LIGHT ACCUMULATION OF ICE ON UNTREATED
  SURFACES.

* TEMPERATURES...READINGS ARE FORECAST TO BE IN THE UPPER 20S AND
  LOWER 30S AT 700 AM. TEMPERATURES SHOULD RISE SLOWLY THIS
  MORNING WITH MOST LOCATIONS EXPECTED TO BE ABOVE 32 DEGREES BY
  1100 AM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN
MAY RESULT IN SLIPPERY ROADS AND WALKWAYS. USE EXTRA CAUTION IF
YOU WILL BE DRIVING THIS MORNING.

&&

$$

IOVINO
3 follow-up statements
365 
WWUS41 KPHI 071200
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
700 AM EST FRI DEC 7 2012

NJZ001-007-071600-
/O.EXA.KPHI.ZR.Y.0003.121207T1200Z-121207T1600Z/
SUSSEX-WARREN-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON
700 AM EST FRI DEC 7 2012

...FREEZING RAIN ADVISORY IN EFFECT UNTIL 11 AM EST THIS
MORNING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FREEZING
RAIN ADVISORY. IT IS IN EFFECT UNTIL 1100 AM.

* LOCATIONS...NORTHWESTERN NEW JERSEY.

* HAZARD TYPE...LIGHT FREEZING RAIN.

* ICE ACCUMULATIONS...A TRACE TO A COUPLE HUNDREDTHS OF AN INCH.

* TIMING...THE PRECIPITATION SHOULD SPREAD INTO THE REGION FROM
  THE WEST IN THE 800 AM TO 900 AM TIME FRAME.

* IMPACTS...THERE MAY BE A LIGHT ACCUMULATION OF ICE ON UNTREATED
  SURFACES.

* TEMPERATURES...READINGS ARE FORECAST TO BE IN THE UPPER 20S AND
  LOWER 30S WHEN THE RAIN ARRIVES. TEMPERATURES SHOULD RISE SLOWLY
  THIS MORNING WITH MOST LOCATIONS EXPECTED TO BE ABOVE 32 DEGREES
  BY 1100 AM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN
MAY RESULT IN SLIPPERY ROADS AND WALKWAYS. USE EXTRA CAUTION IF
YOU WILL BE DRIVING THIS MORNING.

&&

$$

PAZ054-055-060>062-071600-
/O.CON.KPHI.ZR.Y.0003.000000T0000Z-121207T1600Z/
CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-
INCLUDING THE CITIES OF...JIM THORPE...STROUDSBURG...READING...
ALLENTOWN...BETHLEHEM...EASTON
700 AM EST FRI DEC 7 2012

...FREEZING RAIN ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS
MORNING...

* LOCATIONS...THE POCONOS, THE LEHIGH VALLEY AND BERKS COUNTY.

* HAZARD TYPE...LIGHT FREEZING RAIN.

* ICE ACCUMULATIONS...A TRACE TO A COUPLE HUNDREDTHS OF AN INCH.

* TIMING...THE PRECIPITATION SHOULD CONTINUE TO OVERSPREAD THE
  REGION FROM THE WEST THROUGH 900 AM.

* IMPACTS...THERE MAY BE A LIGHT ACCUMULATION OF ICE ON UNTREATED
  SURFACES.

* TEMPERATURES...READINGS WERE IN THE UPPER 20S AND LOWER 30S AS
  THE RAIN BEGAN TO MOVE INTO THE REGION. TEMPERATURES SHOULD RISE
  SLOWLY THIS MORNING WITH MOST LOCATIONS EXPECTED TO BE ABOVE 32
  DEGREES BY 1100 AM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN
MAY RESULT IN SLIPPERY ROADS AND WALKWAYS. USE EXTRA CAUTION IF
YOU WILL BE DRIVING THIS MORNING.

&&

$$

IOVINO
978 
WWUS41 KPHI 071326
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
826 AM EST FRI DEC 7 2012

NJZ008-071600-
/O.EXA.KPHI.ZR.Y.0003.000000T0000Z-121207T1600Z/
MORRIS-
INCLUDING THE CITY OF...MORRISTOWN
826 AM EST FRI DEC 7 2012

...FREEZING RAIN ADVISORY IN EFFECT UNTIL 11 AM EST THIS
MORNING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FREEZING
RAIN ADVISORY...WHICH IS IN EFFECT UNTIL 11 AM EST THIS MORNING.

* LOCATIONS...NORTHWESTERN NEW JERSEY.

* HAZARD TYPE...LIGHT FREEZING RAIN.

* ICE ACCUMULATIONS...A TRACE TO A COUPLE OF HUNDREDTHS OF AN
  INCH.

* TIMING...THE PRECIPITATION SHOULD SPREAD INTO THE REGION FROM 
  THE WEST IN THE 800 AM TO 900 AM TIME FRAME.

* IMPACTS...THERE MAY BE A LIGHT ACCUMULATION OF ICE ON 
  UNTREATED SURFACES.

* TEMPERATURES...READINGS ARE FORECAST TO BE IN THE UPPER 20S AND
  LOWER 30S WHEN THE RAIN ARRIVES. TEMPERATURES SHOULD RISE SLOWLY
  THIS MORNING WITH MOST LOCATIONS EXPECTED TO BE ABOVE 32
  DEGREES BY 11 AM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN
MAY RESULT IN SLIPPERY ROADS AND WALKWAYS. USE EXTRA CAUTION IF
YOU WILL BE DRIVING THIS MORNING.

A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.

&&

$$

NJZ001-007-PAZ054-055-060>062-071600-
/O.CON.KPHI.ZR.Y.0003.000000T0000Z-121207T1600Z/
SUSSEX-WARREN-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...JIM THORPE...
STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...EASTON
826 AM EST FRI DEC 7 2012

...FREEZING RAIN ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS
MORNING...

* LOCATIONS...NORTHWESTERN NEW JERSEY.

* HAZARD TYPE...LIGHT FREEZING RAIN.

* ICE ACCUMULATIONS...A TRACE TO A COUPLE HUNDREDTHS OF AN INCH.

* TIMING...THE PRECIPITATION SHOULD SPREAD INTO THE REGION FROM 
  THE WEST IN THE 800 AM TO 900 AM TIME FRAME.

* IMPACTS...THERE MAY BE A LIGHT ACCUMULATION OF ICE ON 
  UNTREATED SURFACES.

* TEMPERATURES...READINGS ARE FORECAST TO BE IN THE UPPER 20S AND
  LOWER 30S WHEN THE RAIN ARRIVES. TEMPERATURES SHOULD RISE SLOWLY
  THIS MORNING WITH MOST LOCATIONS EXPECTED TO BE ABOVE 32 DEGREES
  BY 11 AM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN
MAY RESULT IN SLIPPERY ROADS AND WALKWAYS. USE EXTRA CAUTION IF
YOU WILL BE DRIVING THIS MORNING.

&&

$$
592 
WWUS41 KPHI 071605
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1105 AM EST FRI DEC 7 2012

NJZ001-007-008-PAZ054-055-060>062-071715-
/O.EXP.KPHI.ZR.Y.0003.000000T0000Z-121207T1600Z/
SUSSEX-WARREN-MORRIS-CARBON-MONROE-BERKS-LEHIGH-NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
JIM THORPE...STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...
EASTON
1105 AM EST FRI DEC 7 2012

...FREEZING RAIN ADVISORY HAS EXPIRED...

TEMPERATURES HAVE RISEN ABOVE THE FREEZING MARK THIS MORNING AND
THE PRECIPITATION HAS CHANGED OVER TO RAIN. THERE MAY STILL BE A FEW
ISOLATED LOCATIONS THAT RECEIVE FREEZING RAIN OVER THE NEXT HOUR
OR SO...MAINLY IN THE HIGHER ELEVATIONS.

$$

HEAVENER

Nearby

Freezing Rain Advisories in Pennsylvania, 2012Freezing Rain Advisories in New Jersey, 2012Every freezing rain advisory in 2012

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.