Alert archive / New Jersey / Ice Storm Warnings in 2009

Ice Storm Warning 1, NWS Philadelphia/Mount Holly

January 6, 20095 counties in New Jersey; 5 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this ice storm warning at Jan 6, 2009, 8:55 PM EST for 5 counties in New Jersey; 5 counties in Pennsylvania. It was in force for 19 hr. 3 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
Jan 6, 2009, 8:55 PM EST (01:55 UTC)
Expired
Jan 7, 2009, 3:26 PM EST
In force
19 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Hunterdon County, NJ, Morris County, NJ, Somerset 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), 112 km from the middle of the area, began a volume at 01:58 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
Jan 7, 12:00 PM ESTICE STORM 0Albrightsville, PASCATTERED POWER OUTAGES REPORTED COUNTYWIDE DUE TO ICE ACCUMULATIONS OF UP TO ONE HALF OF AN INCH.
Jan 7, 12:00 PM ESTICE STORM 0Saylorsburg, PALARGE TREE LIMBS DOWN IN THE SAYLORSBURG AREA DUE TO ICE ACCUMULATIONS OF UP TO ONE HALF OF AN INCH. POWER OUTAGES REPORTED.
Jan 7, 2:00 PM ESTICE STORM 0High Point, NJIN THE HIGH POINT TO WANTAGE AREAS, ICE ACCUMULATIONS OF UP TO ONE HALF OF AN INCH COATED ALL SURFACES, WHICH RESULTED IN VERY SLIPPERY CONDITIONS. THE AIR TEMPERATURE NEVER GOT ABOVE FREEZING.

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, 1.9 hours before the alert went out and 194 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 2009-01-07Temperature 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 2009-01-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 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
1717 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
530 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.

000 
WWUS41 KPHI 070155
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
855 PM EST TUE JAN 6 2009

NJZ001-007-008-PAZ054-055-061-062-071000-
/O.CAN.KPHI.WS.W.0001.000000T0000Z-090107T1500Z/
/O.NEW.KPHI.IS.W.0001.090107T0155Z-090107T1500Z/
SUSSEX-WARREN-MORRIS-CARBON-MONROE-LEHIGH-NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
JIM THORPE...STROUDSBURG...ALLENTOWN...BETHLEHEM...EASTON
855 PM EST TUE JAN 6 2009

...ICE STORM WARNING IN EFFECT UNTIL 10 AM EST WEDNESDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE HAS ISSUED AN ICE STORM WARNING. IT IS
IN EFFECT UNTIL 1000 AM ON WEDNESDAY. THE WINTER STORM WARNING HAS
BEEN CANCELLED.

A BROAD AREA OF LOW PRESSURE EXTENDED FROM THE MISSISSIPPI RIVER
VALLEY TO THE SOUTHEASTERN STATES THIS EVENING. THE LOW WILL BUILD
TO THE EAST AND NORTH AND ITS CENTER SHOULD BECOME BETTER DEFINED
OVER THE EASTERN GREAT LAKES REGION ON WEDNESDAY. A SECONDARY LOW
IS FORECAST TO DEVELOP ALONG THE MIDDLE ATLANTIC COAST AT THAT
TIME. BOTH LOWS ARE THEN EXPECTED TO MOVE NORTHEASTWARD, REACHING
ATLANTIC CANADA ON THURSDAY.

PRECIPITATION WAS CONTINUING TO SPREAD UP INTO EASTERN
PENNSYLVANIA AND NORTHERN NEW JERSEY THIS EVENING. WITH
TEMPERATURES RANGING MAINLY FROM THE MIDDLE 20S TO THE LOWER 30S,
AND WITH WARM AIR BUILDING OVERHEAD, THE PRECIPITATION WAS MOSTLY
IN THE FORM OF FREEZING RAIN.

FREEZING RAIN WILL CONTINUE OVERNIGHT. ON WEDNESDAY MORNING,
TEMPERATURES WILL BEGIN TO GRADUALLY RISE ABOVE 32 DEGREES IN
OUR REGION, CHANGING THE FREEZING RAIN TO RAIN BY LATE MORNING AT
MOST LOCATIONS. HOWEVER, SOME POCKETS OF COLD AIR MAY LINGER INTO
EARLY WEDNESDAY AFTERNOON IN THE POCONO REGION AND IN SUSSEX
COUNTY, NEW JERSEY.

UP TO A HALF INCH OF ICE MAY ACCUMULATE IN PARTS OF OUR REGION.

TRAVEL CONDITIONS ARE EXPECTED TO BE QUITE HAZARDOUS TONIGHT AND
INTO PART OF WEDNESDAY IN MUCH OF THE LEHIGH VALLEY, THE POCONO
REGION AND NORTHERN NEW JERSEY. ICE WILL LIKELY ACCUMULATE ON
UNTREATED ROADS AND WALKWAYS. BE ESPECIALLY CAUTIOUS ON BRIDGES
AND OVERPASSES.

ICE WILL ALSO ACCUMULATE ON TREE LIMBS AND POWER LINES, POSSIBLY
RESULTING IN POWER OUTAGES, ESPECIALLY IN THE POCONOS AND IN FAR
NORTHERN NEW JERSEY WHERE THE COLD AIR IS FORECAST TO REMAIN THE
LONGEST.

$$

NJZ009-010-PAZ060-067>069-071000-
/O.CAN.KPHI.WS.W.0001.000000T0000Z-090107T1300Z/
/O.NEW.KPHI.IS.W.0001.090107T0155Z-090107T1300Z/
HUNTERDON-SOMERSET-BERKS-CHESTER-MONTGOMERY-BUCKS-
INCLUDING THE CITIES OF...FLEMINGTON...SOMERVILLE...READING...
WEST CHESTER...NORRISTOWN...DOYLESTOWN
855 PM EST TUE JAN 6 2009

...ICE STORM WARNING IN EFFECT UNTIL 8 AM EST WEDNESDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE HAS ISSUED AN ICE STORM WARNING. IT
IS IN EFFECT UNTIL 800 AM ON WEDNESDAY. THE WINTER STORM WARNING
HAS BEEN CANCELLED.

A BROAD AREA OF LOW PRESSURE EXTENDED FROM THE MISSISSIPPI RIVER
VALLEY TO THE SOUTHEASTERN STATES THIS EVENING. THE LOW WILL BUILD
TO THE EAST AND NORTH AND ITS CENTER SHOULD BECOME BETTER DEFINED
OVER THE EASTERN GREAT LAKES REGION ON WEDNESDAY. A SECONDARY LOW
IS FORECAST TO DEVELOP ALONG THE MIDDLE ATLANTIC COAST AT THAT
TIME. BOTH LOWS ARE THEN EXPECTED TO MOVE NORTHEASTWARD, REACHING
ATLANTIC CANADA ON THURSDAY.

PRECIPITATION WAS CONTINUING TO SPREAD UP INTO EASTERN
PENNSYLVANIA AND NORTHERN NEW JERSEY THIS EVENING. WITH
TEMPERATURES RANGING MAINLY IN THE UPPER 20S AND LOWER 30S, AND
WITH WARM AIR BUILDING OVERHEAD, THE PRECIPITATION WAS MOSTLY IN
THE FORM OF FREEZING RAIN.

DURING THE NIGHT, WARM AIR WILL SLOWLY WORK ITS WAY DOWN TO THE
SURFACE AND TEMPERATURES WILL GRADUALLY RISE ABOVE THE FREEZING
MARK TOWARD MORNING, CHANGING THE FREEZING RAIN TO RAIN FROM SOUTH TO
NORTH. HOWEVER, SOME LOCATIONS IN BERKS COUNTY, UPPER MONTGOMERY
COUNTY, UPPER BUCKS COUNTY, AND IN THE NORTHERN PARTS OF HUNTERDON
COUNTY AND SOMERSET COUNTY ALONG THE INTERSTATE 78 CORRIDOR, COULD
REMAIN BELOW FREEZING INTO WEDNESDAY MORNINGS COMMUTE.

UP TO A QUARTER INCH OF ICE MAY ACCUMULATE IN PARTS OF OUR REGION.

AFTER DAYBREAK ON WEDNESDAY, ALMOST ALL LOCATIONS IN THE
PENNSYLVANIA COUNTIES OF BERKS, CHESTER, MONTGOMERY AND BUCKS, AND
IN THE NEW JERSEY COUNTIES OF HUNTERDON AND SOMERSET SHOULD RISE
ABOVE FREEZING.

TRAVEL CONDITIONS ARE EXPECTED TO BE QUITE HAZARDOUS TONIGHT IN
SOUTHEASTERN PENNSYLVANIA AND NORTHERN NEW JERSEY. ICE WILL LIKELY
ACCUMULATE ON UNTREATED ROADS AND WALKWAYS. BE ESPECIALLY CAUTIOUS
ON BRIDGES AND OVERPASSES.

ICE WILL ALSO ACCUMULATE ON TREE LIMBS AND POWER LINES, POSSIBLY
RESULTING IN SCATTERED POWER OUTAGES, ESPECIALLY IN THE NORTHERN
PARTS OF OUR REGION.

$$

DEZ001-MDZ008-012-NJZ013-016>019-PAZ070-071-071000-
/O.EXB.KPHI.WW.Y.0001.000000T0000Z-090107T1000Z/
NEW CASTLE-CECIL-KENT MD-WESTERN MONMOUTH-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...CHESTERTOWN...
FREEHOLD...PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...
MOORESTOWN...MOUNT HOLLY...MEDIA...PHILADELPHIA
855 PM EST TUE JAN 6 2009

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM EST WEDNESDAY...

THE NATIONAL WEATHER SERVICE HAS ISSUED A WINTER WEATHER ADVISORY
FOR FREEZING RAIN. IT IS IN EFFECT UNTIL 500 AM ON WEDNESDAY.

A BROAD AREA OF LOW PRESSURE EXTENDED FROM THE MISSISSIPPI RIVER
VALLEY TO THE SOUTHEASTERN STATES THIS EVENING. THE LOW WILL BUILD
TO THE EAST AND NORTH AND ITS CENTER SHOULD BECOME BETTER DEFINED
OVER THE EASTERN GREAT LAKES REGION ON WEDNESDAY. A SECONDARY LOW
IS FORECAST TO DEVELOP ALONG THE MIDDLE ATLANTIC COAST AT THAT
TIME. BOTH LOWS ARE THEN EXPECTED TO MOVE NORTHEASTWARD, REACHING
ATLANTIC CANADA ON THURSDAY.

PRECIPITATION WAS CONTINUING TO SPREAD UP INTO OUR REGION THIS
EVENING. WITH TEMPERATURES RANGING MAINLY IN THE LOWER 30S, AND
WITH WARM AIR BUILDING OVERHEAD, THE PRECIPITATION WAS MOSTLY IN
THE FORM OF FREEZING RAIN.

AN ICE ACCUMULATION OF ONE TO TWO TENTHS OF AN INCH IS POSSIBLE
IN PARTS OF OUR REGION.

OVERNIGHT, WARM AIR SHOULD BEGIN TO WORK ITS WAY DOWN TO THE SURFACE
AND TEMPERATURES WILL GRADUALLY RISE, CHANGING ANY FREEZING RAIN
TO RAIN BY MORNING.

TRAVEL CONDITIONS WILL BE QUITE HAZARDOUS IN PARTS OF OUR REGION
OVERNIGHT. ICE WILL ACCUMULATE ON UNTREATED ROADS AND WALKWAYS. BE
ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES.

$$

NJZ012-015-071000-
/O.EXT.KPHI.WW.Y.0001.000000T0000Z-090107T1000Z/
MIDDLESEX-MERCER-
INCLUDING THE CITIES OF...NEW BRUNSWICK...TRENTON
855 PM EST TUE JAN 6 2009

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 5 AM EST
WEDNESDAY...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 500 AM ON
WEDNESDAY. 

A BROAD AREA OF LOW PRESSURE EXTENDED FROM THE MISSISSIPPI RIVER
VALLEY TO THE SOUTHEASTERN STATES THIS EVENING. THE LOW WILL BUILD
TO THE EAST AND NORTH AND ITS CENTER SHOULD BECOME BETTER DEFINED
OVER THE EASTERN GREAT LAKES REGION ON WEDNESDAY. A SECONDARY LOW
IS FORECAST TO DEVELOP ALONG THE MIDDLE ATLANTIC COAST AT THAT
TIME. BOTH LOWS ARE THEN EXPECTED TO MOVE NORTHEASTWARD, REACHING
ATLANTIC CANADA ON THURSDAY.

PRECIPITATION WAS CONTINUING TO SPREAD UP INTO OUR REGION THIS
EVENING. WITH TEMPERATURES RANGING MAINLY IN THE UPPER 20S AND
LOWER 30S, AND WITH WARM AIR BUILDING OVERHEAD, THE PRECIPITATION
WAS MOSTLY IN THE FORM OF FREEZING RAIN.

AN ICE ACCUMULATION OF ONE TO TWO TENTHS OF AN INCH IS POSSIBLE
IN PARTS OF OUR REGION.

OVERNIGHT, WARM AIR SHOULD BEGIN TO WORK ITS WAY DOWN TO THE SURFACE
AND TEMPERATURES WILL GRADUALLY RISE, CHANGING ANY FREEZING RAIN
TO RAIN BY MORNING.

TRAVEL CONDITIONS WILL BE QUITE HAZARDOUS IN PARTS OF OUR REGION
OVERNIGHT. ICE WILL ACCUMULATE ON UNTREATED ROADS AND WALKWAYS. BE
ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES.

$$

IOVINO
5 follow-up statements
000 
WWUS41 KPHI 070345
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1045 PM EST TUE JAN 6 2009

NJZ001-007-008-PAZ054-055-061-062-071000-
/O.CON.KPHI.IS.W.0001.000000T0000Z-090107T1500Z/
SUSSEX-WARREN-MORRIS-CARBON-MONROE-LEHIGH-NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
JIM THORPE...STROUDSBURG...ALLENTOWN...BETHLEHEM...EASTON
1045 PM EST TUE JAN 6 2009

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

AN ICE STORM WARNING REMAINS IN EFFECT UNTIL 1000 AM ON WEDNESDAY.

A BROAD AREA OF LOW PRESSURE EXTENDED FROM THE MISSISSIPPI RIVER
VALLEY TO THE SOUTHEASTERN STATES THIS EVENING. THE LOW WILL BUILD
TO THE EAST AND NORTH AND ITS CENTER SHOULD BECOME BETTER DEFINED
OVER THE EASTERN GREAT LAKES REGION ON WEDNESDAY. A SECONDARY LOW
IS FORECAST TO DEVELOP ALONG THE MIDDLE ATLANTIC COAST AT THAT
TIME. BOTH LOWS ARE THEN EXPECTED TO MOVE NORTHEASTWARD, REACHING
ATLANTIC CANADA ON THURSDAY.

PRECIPITATION WAS CONTINUING TO SPREAD UP INTO EASTERN
PENNSYLVANIA AND NORTHERN NEW JERSEY THIS EVENING. WITH
TEMPERATURES RANGING MAINLY FROM THE MIDDLE 20S TO THE LOWER 30S,
AND WITH WARM AIR BUILDING OVERHEAD, THE PRECIPITATION WAS FALLING
IN THE FORM OF FREEZING RAIN. THE FREEZING RAIN WILL CONTINUE
OVERNIGHT.

UP TO A HALF INCH OF ICE MAY ACCUMULATE IN PARTS OF OUR REGION.

ON WEDNESDAY MORNING, TEMPERATURES WILL BEGIN TO GRADUALLY RISE
ABOVE 32 DEGREES IN OUR REGION, CHANGING THE FREEZING RAIN TO RAIN
BY LATE MORNING AT MOST LOCATIONS. HOWEVER, SOME POCKETS OF COLD
AIR MAY LINGER INTO EARLY WEDNESDAY AFTERNOON IN THE POCONO REGION
AND IN SUSSEX COUNTY, NEW JERSEY.

TRAVEL CONDITIONS ARE EXPECTED TO BE QUITE HAZARDOUS OVERNIGHT
AND INTO PART OF WEDNESDAY IN MUCH OF THE LEHIGH VALLEY, THE
POCONO REGION AND NORTHERN NEW JERSEY. ICE WILL LIKELY ACCUMULATE
ON UNTREATED ROADS AND WALKWAYS. BE ESPECIALLY CAUTIOUS ON BRIDGES
AND OVERPASSES.

ICE WILL ALSO ACCUMULATE ON TREE LIMBS AND POWER LINES, POSSIBLY
RESULTING IN POWER OUTAGES, ESPECIALLY IN THE POCONOS AND IN FAR
NORTHERN NEW JERSEY WHERE THE COLD AIR IS FORECAST TO REMAIN THE
LONGEST.

$$

NJZ009-010-PAZ060-067>069-071000-
/O.CON.KPHI.IS.W.0001.000000T0000Z-090107T1300Z/
HUNTERDON-SOMERSET-BERKS-CHESTER-MONTGOMERY-BUCKS-
INCLUDING THE CITIES OF...FLEMINGTON...SOMERVILLE...READING...
WEST CHESTER...NORRISTOWN...DOYLESTOWN
1045 PM EST TUE JAN 6 2009

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 8 AM EST WEDNESDAY...

AN ICE STORM WARNING REMAINS IN EFFECT UNTIL 800 AM ON WEDNESDAY.

A BROAD AREA OF LOW PRESSURE EXTENDED FROM THE MISSISSIPPI RIVER
VALLEY TO THE SOUTHEASTERN STATES THIS EVENING. THE LOW WILL BUILD
TO THE EAST AND NORTH AND ITS CENTER SHOULD BECOME BETTER DEFINED
OVER THE EASTERN GREAT LAKES REGION ON WEDNESDAY. A SECONDARY LOW
IS FORECAST TO DEVELOP ALONG THE MIDDLE ATLANTIC COAST AT THAT
TIME. BOTH LOWS ARE THEN EXPECTED TO MOVE NORTHEASTWARD, REACHING
ATLANTIC CANADA ON THURSDAY.

PRECIPITATION WAS CONTINUING TO SPREAD UP INTO EASTERN
PENNSYLVANIA AND NORTHERN NEW JERSEY THIS EVENING. WITH
TEMPERATURES RANGING MAINLY IN THE UPPER 20S AND LOWER 30S, AND
WITH WARM AIR BUILDING OVERHEAD, THE PRECIPITATION WAS FALLING IN
THE FORM OF FREEZING RAIN.

DURING THE NIGHT, WARM AIR WILL SLOWLY WORK ITS WAY DOWN TO THE
SURFACE AND TEMPERATURES WILL GRADUALLY RISE ABOVE THE FREEZING
MARK TOWARD MORNING CHANGING THE FREEZING RAIN TO RAIN FROM SOUTH
TO NORTH. HOWEVER, SOME LOCATIONS IN BERKS COUNTY, UPPER
MONTGOMERY COUNTY, UPPER BUCKS COUNTY, AND IN THE NORTHERN PARTS
OF HUNTERDON COUNTY AND SOMERSET COUNTY ALONG THE INTERSTATE 78
CORRIDOR, COULD REMAIN BELOW FREEZING INTO WEDNESDAY MORNINGS
COMMUTE.

UP TO A QUARTER INCH OF ICE MAY ACCUMULATE IN PARTS OF OUR
REGION.

AFTER DAYBREAK ON WEDNESDAY, ALMOST ALL LOCATIONS IN THE
PENNSYLVANIA COUNTIES OF BERKS, CHESTER, MONTGOMERY AND BUCKS, AND
IN THE NEW JERSEY COUNTIES OF HUNTERDON AND SOMERSET SHOULD RISE
ABOVE FREEZING.

TRAVEL CONDITIONS ARE EXPECTED TO BE QUITE HAZARDOUS OVERNIGHT IN
SOUTHEASTERN PENNSYLVANIA AND NORTHERN NEW JERSEY. ICE WILL LIKELY
ACCUMULATE ON UNTREATED ROADS AND WALKWAYS. BE ESPECIALLY CAUTIOUS
ON BRIDGES AND OVERPASSES.

ICE WILL ALSO ACCUMULATE ON TREE LIMBS AND POWER LINES, POSSIBLY
RESULTING IN SCATTERED POWER OUTAGES, ESPECIALLY IN THE NORTHERN
PARTS OF OUR REGION.

$$

DEZ001-MDZ008-012-NJZ012-013-015>019-PAZ070-071-071000-
/O.CON.KPHI.WW.Y.0001.000000T0000Z-090107T1000Z/
NEW CASTLE-CECIL-KENT MD-MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...CHESTERTOWN...
NEW BRUNSWICK...FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...MEDIA...
PHILADELPHIA
1045 PM EST TUE JAN 6 2009

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

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 500 AM ON
WEDNESDAY. 

A BROAD AREA OF LOW PRESSURE EXTENDED FROM THE MISSISSIPPI RIVER
VALLEY TO THE SOUTHEASTERN STATES THIS EVENING. THE LOW WILL BUILD
TO THE EAST AND NORTH AND ITS CENTER SHOULD BECOME BETTER DEFINED
OVER THE EASTERN GREAT LAKES REGION ON WEDNESDAY. A SECONDARY LOW
IS FORECAST TO DEVELOP ALONG THE MIDDLE ATLANTIC COAST AT THAT
TIME. BOTH LOWS ARE THEN EXPECTED TO MOVE NORTHEASTWARD, REACHING
ATLANTIC CANADA ON THURSDAY.

PRECIPITATION WAS CONTINUING TO SPREAD UP INTO OUR REGION THIS
EVENING. WITH TEMPERATURES RANGING MAINLY IN THE LOWER 30S, AND
WITH WARM AIR BUILDING OVERHEAD, THE PRECIPITATION WAS MOSTLY IN
THE FORM OF FREEZING RAIN.

AN ICE ACCUMULATION OF ONE TO TWO TENTHS OF AN INCH IS POSSIBLE
IN PARTS OF OUR REGION.

OVERNIGHT, WARM AIR SHOULD BEGIN TO WORK ITS WAY DOWN TO THE
SURFACE AND TEMPERATURES WILL GRADUALLY RISE, CHANGING ANY
FREEZING RAIN TO RAIN BY MORNING.

TRAVEL CONDITIONS WILL BE QUITE HAZARDOUS IN PARTS OF OUR REGION
OVERNIGHT. ICE WILL ACCUMULATE ON UNTREATED ROADS AND WALKWAYS.
BE ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES.

$$

IOVINO
000 
WWUS41 KPHI 070825
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
325 AM EST WED JAN 7 2009

DEZ001-MDZ008-012-NJZ012-013-015>019-PAZ070-071-070930-
/O.CAN.KPHI.WW.Y.0001.000000T0000Z-090107T1000Z/
NEW CASTLE-CECIL-KENT MD-MIDDLESEX-WESTERN MONMOUTH-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...CHESTERTOWN...
NEW BRUNSWICK...FREEHOLD...TRENTON...PENNSVILLE...GLASSBORO...
CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...MEDIA...
PHILADELPHIA
325 AM EST WED JAN 7 2009

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE HAS CANCELLED THE WINTER WEATHER
ADVISORY.

BY 300 AM, TEMPERATURES HAD RISEN INTO THE MID 30S THROUGHOUT THE
REGION. TEMPERATURES WILL CONTINUE TO INCREASE TODAY, REACHING
THE LOWER 40S THIS AFTERNOON. AS A RESULT, THERE IS NO LONGER A
THREAT OF FREEZING RAIN.

$$

NJZ001-007-008-PAZ054-055-061-062-071500-
/O.CON.KPHI.IS.W.0001.000000T0000Z-090107T1500Z/
SUSSEX-WARREN-MORRIS-CARBON-MONROE-LEHIGH-NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
JIM THORPE...STROUDSBURG...ALLENTOWN...BETHLEHEM...EASTON
325 AM EST WED JAN 7 2009

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

AN ICE STORM WARNING REMAINS IN EFFECT UNTIL 1000 AM.

LOW PRESSURE WAS LOCATED OVER THE OHIO RIVER VALLEY DURING THE
NIGHT. A SECOND LOW WAS DEVELOPING OFF THE MIDDLE ATLANTIC COAST.
BOTH SYSTEMS WILL MOVE TO THE NORTHEAST TODAY AND TONIGHT AND THEY
SHOULD MERGE OVER ATLANTIC CANADA ON THURSDAY.

FREEZING RAIN FELL DURING THE NIGHT, AND ICE ACCUMULATED ON
UNTREATED ROADS AND WALKWAYS, AS WELL AS ON TREES AND POWER LINES.

TEMPERATURES WERE GENERALLY IN THE MIDDLE 20S TO LOWER 30S EARLY
THIS MORNING. THE FREEZING RAIN IS EXPECTED TO CONTINUE INTO THE
MORNING COMMUTE. TEMPERATURES ARE THEN FORECAST TO BEGIN RISING
ABOVE 32 DEGREES, AND THE FREEZING RAIN SHOULD GRADUALLY CHANGE TO
RAIN BY LATE MORNING. HOWEVER, SOME POCKETS OF COLD AIR MAY LINGER
INTO THE EARLY AFTERNOON IN THE POCONO REGION AND IN SUSSEX
COUNTY, NEW JERSEY.

BY THE TIME THE FREEZING RAIN ENDS, SOME LOCATIONS COULD PICK UP
A QUARTER TO A HALF INCH ICE ACCUMULATION.

TRAVEL CONDITIONS WILL CONTINUE TO BE HAZARDOUS THIS MORNING. ICE
WILL REMAIN ON UNTREATED ROADS AND WALKWAYS UNTIL THE TEMPERATURE
RISES ABOVE THE FREEZING MARK. BE ESPECIALLY CAUTIOUS ON BRIDGES
AND OVERPASSES.

THE ICE MAY BRING DOWN TREE LIMBS AND POWER LINES, POSSIBLY CAUSING
POWER OUTAGES.

$$

NJZ009-010-PAZ060-067>069-071300-
/O.CON.KPHI.IS.W.0001.000000T0000Z-090107T1300Z/
HUNTERDON-SOMERSET-BERKS-CHESTER-MONTGOMERY-BUCKS-
INCLUDING THE CITIES OF...FLEMINGTON...SOMERVILLE...READING...
WEST CHESTER...NORRISTOWN...DOYLESTOWN
325 AM EST WED JAN 7 2009

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 8 AM EST THIS
MORNING...

AN ICE STORM WARNING REMAINS IN EFFECT UNTIL 800 AM.

LOW PRESSURE WAS LOCATED OVER THE OHIO RIVER VALLEY DURING THE
NIGHT. A SECOND LOW WAS DEVELOPING OFF THE MIDDLE ATLANTIC COAST.
BOTH SYSTEMS WILL MOVE TO THE NORTHEAST TODAY AND TONIGHT AND THEY
SHOULD MERGE OVER ATLANTIC CANADA ON THURSDAY.

FREEZING RAIN FELL DURING THE NIGHT, AND ICE ACCUMULATED ON
UNTREATED ROADS AND WALKWAYS, AS WELL AS ON TREES AND POWER LINES.

TEMPERATURES WERE GENERALLY IN THE LOWER 30S EARLY THIS MORNING.
AREAS OF FREEZING RAIN ARE EXPECTED INTO THE MORNING COMMUTE IN
PARTS OF SOUTHEASTERN PENNSYLVANIA AND NORTHERN NEW JERSEY.
HOWEVER, TEMPERATURES WILL BE RISING ABOVE 32 DEGREES IN THE
REGION AND ANY FREEZING RAIN SHOULD GRADUALLY CHANGE TO RAIN BY
MID MORNING.

BY THE TIME THE FREEZING RAIN ENDS, SOME LOCATIONS COULD RECEIVE
UP TO A QUARTER INCH ICE ACCUMULATION.

TRAVEL CONDITIONS WILL CONTINUE TO BE HAZARDOUS THIS MORNING. ICE
WILL REMAIN ON UNTREATED ROADS AND WALKWAYS UNTIL THE TEMPERATURE
RISES ABOVE THE FREEZING MARK. BE ESPECIALLY CAUTIOUS ON BRIDGES
AND OVERPASSES.

THE ICE MAY BRING DOWN TREE LIMBS AND POWER LINES, POSSIBLY CAUSING
POWER OUTAGES.

$$

IOVINO
000 
WWUS41 KPHI 071259
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
759 AM EST WED JAN 7 2009

NJZ009-010-PAZ060-067>069-071400-
/O.EXP.KPHI.IS.W.0001.000000T0000Z-090107T1300Z/
HUNTERDON-SOMERSET-BERKS-CHESTER-MONTGOMERY-BUCKS-
INCLUDING THE CITIES OF...FLEMINGTON...SOMERVILLE...READING...
WEST CHESTER...NORRISTOWN...DOYLESTOWN
759 AM EST WED JAN 7 2009

...ICE STORM WARNING WILL EXPIRE AT 8 AM EST THIS MORNING...

THE ICE STORM WARNING WILL EXPIRE AT 8 AM EST THIS MORNING. 

CALLS TO COUNTY 911 CENTERS THIS MORNING CONFIRM THAT ICING ON
ROADWAYS AND POWER LINES IS NO LONGER A PROBLEM. ALTHOUGH SOME
PATCHY RESIDUAL ICING OF METAL OBJECTS MAY OCCUR INTO MID-
MORNING...THE THREAT DUE TO FREEZING RAIN HAS ENDED. 

$$

NJZ001-007-008-PAZ054-055-061-062-071500-
/O.CON.KPHI.IS.W.0001.000000T0000Z-090107T1500Z/
SUSSEX-WARREN-MORRIS-CARBON-MONROE-LEHIGH-NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
JIM THORPE...STROUDSBURG...ALLENTOWN...BETHLEHEM...EASTON
759 AM EST WED JAN 7 2009

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

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

FREEZING RAIN FELL DURING THE NIGHT...AND ICE ACCUMULATED ON
UNTREATED ROADS AND WALKWAYS...AS WELL AS ON TREES AND POWER
LINES.

TEMPERATURES WERE IN THE LOWER 30S THIS MORNING. THE FREEZING
RAIN IS EXPECTED TO CONTINUE INTO THE MORNING COMMUTE.
TEMPERATURES ARE THEN FORECAST TO BEGIN RISING ABOVE 32 DEGREES...
AND THE FREEZING RAIN SHOULD GRADUALLY CHANGE TO RAIN BY LATE
MORNING. HOWEVER... SOME POCKETS OF COLD AIR MAY LINGER INTO THE
EARLY AFTERNOON IN THE POCONO REGION AND IN SUSSEX COUNTY... NEW
JERSEY.

BY THE TIME THE FREEZING RAIN ENDS... SOME LOCATIONS COULD PICK
UP A QUARTER TO A HALF INCH ICE ACCUMULATION.

TRAVEL CONDITIONS WILL CONTINUE TO BE HAZARDOUS THIS MORNING. ICE
WILL REMAIN ON UNTREATED ROADS AND WALKWAYS UNTIL THE TEMPERATURE
RISES ABOVE THE FREEZING MARK. BE ESPECIALLY CAUTIOUS ON BRIDGES
AND OVERPASSES.

THE ICE MAY BRING DOWN TREE LIMBS AND POWER LINES... POSSIBLY
CAUSING POWER OUTAGES.

$$
000 
WWUS41 KPHI 071459
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
959 AM EST WED JAN 7 2009

NJZ007-008-PAZ061-062-071600-
/O.EXP.KPHI.IS.W.0001.000000T0000Z-090107T1500Z/
WARREN-MORRIS-LEHIGH-NORTHAMPTON-
INCLUDING THE CITIES OF...WASHINGTON...MORRISTOWN...ALLENTOWN...
BETHLEHEM...EASTON
959 AM EST WED JAN 7 2009

...ICE STORM WARNING WILL EXPIRE AT 10 AM EST THIS MORNING...

THE ICE STORM WARNING WILL EXPIRE AT 10 AM EST THIS MORNING. 

CALLS TO COUNTY EMERGENCY MANAGEMENT OFFICES CONFIRM THAT ICING ON
ROADWAYS AND POWER LINES IS NO LONGER A PROBLEM. SOME RESIDUAL
ICING OF METAL OBJECTS MAY OCCUR THROUGH THE MORNING...BUT THE
THREAT DUE TO ICING HAS ENDED. 

$$

NJZ001-PAZ054-055-072200-
/O.EXT.KPHI.IS.W.0001.000000T0000Z-090107T2200Z/
SUSSEX-CARBON-MONROE-
INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG
959 AM EST WED JAN 7 2009

...ICE STORM WARNING NOW IN EFFECT UNTIL 5 PM EST THIS
AFTERNOON MAINLY FOR THE HIGHER ELEVATIONS...

THE ICE STORM WARNING IS NOW IN EFFECT UNTIL 5 PM EST THIS
AFTERNOON MAINLY FOR THE HIGHER ELEVATIONS. 

COUNTY EMERGENCY MANAGEMENT OFFICIALS REPORT THAT ICING CONTINUED
TO BE A PROBLEM FOR THE HIGHER ELEVATIONS OF CARBON...MONROE AND
SUSSEX COUNTIES. ICING WAS LESS OF A PROBLEM OVER THE LOWER
ELEVATIONS. GIVEN THE CURRENT TEMPERATURE TRENDS...THE ICING
PROBLEM MAY WELL LINGER WELL INTO THE AFTERNOON. 

BY THE TIME THE FREEZING RAIN ENDS... SOME LOCATIONS...ESPECIALLY
OVER THE HIGHER ELEVATIONS...COULD PICK UP A QUARTER TO A HALF
INCH ICE ACCUMULATION.

TRAVEL CONDITIONS WILL CONTINUE TO BE HAZARDOUS. ICE WILL REMAIN
ON UNTREATED ROADS AND WALKWAYS UNTIL THE TEMPERATURE RISES ABOVE
THE FREEZING MARK. BE ESPECIALLY CAUTIOUS ON BRIDGES AND
OVERPASSES.

THE ICE MAY BRING DOWN TREE LIMBS AND POWER LINES...POSSIBLY
CAUSING POWER OUTAGES.

$$
000 
WWUS41 KPHI 072026
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
326 PM EST WED JAN 7 2009

NJZ001-PAZ054-055-072130-
/O.CAN.KPHI.IS.W.0001.000000T0000Z-090107T2200Z/
SUSSEX-CARBON-MONROE-
INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG
326 PM EST WED JAN 7 2009

...ICE STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE ICE
STORM WARNING. 

THE LATEST RADAR IMAGERY SHOWED THAT THE BULK OF THE PRECIPITATION
HAS ENDED ACROSS THE WARNING AREA. WHILE THERE COULD STILL BE SOME
LIGHT FREEZING RAIN OR SNOW OVER THE NEXT FEW HOURS, NO ADDITIONAL
SIGNIFICANT ICING IS EXPECTED.

HOWEVER, PEOPLE SHOULD USE EXTREME CAUTION WHEN TRAVELING, AS
ROADS AND SIDEWALKS WERE ICE COVERED AND TREACHEROUS.

$$

NIERENBERG

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 7, 5:02 AM ESTGale WarningPHI40 hr
Jan 7, 8:21 AM ESTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Mercer and 4 more8 hr
Jan 7, 8:32 AM ESTAreal Flood AdvisoryPHIHunterdon, Mercer, Middlesex, Morris, Somerset8 hr

Nearby

Ice Storm Warnings in New Jersey, 2009Ice Storm Warnings in Pennsylvania, 2009Every ice storm warning in 2009

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.