Alert archive / Pennsylvania / Freezing Rain Advisories in 2007

Freezing Rain Advisory 2, NWS Philadelphia/Mount Holly

November 25, 2007Carbon County, Monroe County, Northampton County, Pennsylvania; Sussex County, Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this freezing rain advisory at Nov 25, 2007, 9:29 PM EST for Carbon County, Monroe County, Northampton County, Pennsylvania; Sussex County, Warren County, New Jersey. It took effect at Nov 26, 2007, 1:00 AM EST. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Nov 25, 2007, 9:29 PM EST (02:29 UTC)
In effect from
Nov 26, 2007, 1:00 AM EST
Expired
Nov 26, 2007, 4:58 AM EST
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Sussex County, NJ, Warren County, NJ, Carbon County, PA, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 130 km from the middle of the area, began a volume at 02:31 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, 2.5 hours before the alert went out and 197 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 2007-11-26Temperature 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 2007-11-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 185 square meters per square second.1939587897117Sfc1 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
1722 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
185 m²/s²
0-3 km storm-relative helicity
269 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 260229
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
929 PM EST SUN NOV 25 2007

NJZ001-007-PAZ054-055-062-261200-
/O.NEW.KPHI.ZR.Y.0002.071126T0600Z-071126T1200Z/
SUSSEX-WARREN-CARBON-MONROE-NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...JIM THORPE...
STROUDSBURG...BETHLEHEM...EASTON
929 PM EST SUN NOV 25 2007

...FREEZING RAIN ADVISORY IN EFFECT FROM 1 AM TO 7 AM EST
MONDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FREEZING
RAIN ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 7 AM EST MONDAY. 

A STORM SYSTEM OVER THE GULF COAST STATES WILL INTENSIFY TONIGHT AS 
IT MOVES NORTHEAST. ALTHOUGH THE CENTER OF THE STORM IS QUITE A 
DISTANCE AWAY FROM THE MID-ATLANTIC REGION, THE ASSOCIATED 
PRECIPITATION WILL BEGIN TO SPREAD INTO THE AREA TONIGHT.

DUE TO THE FACT THAT CLOUDS ARE JUST BEGINNING TO SPREAD ACROSS THE 
REGION, EVENING TEMPERATURES HAVE BEEN ABLE TO FALL UNDER THE CLEAR 
SKIES. BASED ON THE LATEST SURFACE OBSERVATIONS, QUITE A FEW 
TEMPERATURES HAVE FALLEN TO OR SLIGHTLY BELOW FREEZING.

WITH FREEZING OR SUB-FREEZING TEMPERATURES IN PLACE ACROSS PORTIONS 
OF THE REGION, THE THREAT OF FREEZING RAIN NOW EXISTS. FOR THIS 
REASON, THE NATIONAL WEATHER HAS ISSUED A FREEZING RAIN ADVISORY 
BEGINNING AT 1 AM EST.

THERE IS PLENTY OF WARM AIR RIDING NORTH WITH THIS SYSTEM AND AS WE 
APPROACH DAYBREAK TOMORROW, TEMPERATURES WILL BE ON THE RISE. THUS, 
THE FREEZING RAIN THAT DOES OCCUR OVERNIGHT IS EXPECTED TO CHANGE TO 
AN ALL LIQUID RAIN FAIRLY RAPIDLY.

IF YOU PLAN TO BE ON THE ROAD OVERNIGHT, KEEP IN MIND THAT FREEZING 
RAIN IS EXPECTED AND COULD MAKE DRIVING HAZARDOUS ON ROADS WHICH ARE
LEFT UNTREATED.

$$

KRUZDLO
2 follow-up statements
000 
WWUS41 KPHI 260819
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
319 AM EST MON NOV 26 2007

NJZ007-PAZ062-260930-
/O.CAN.KPHI.ZR.Y.0002.000000T0000Z-071126T1200Z/
WARREN-NORTHAMPTON-
INCLUDING THE CITIES OF...WASHINGTON...BETHLEHEM...EASTON
319 AM EST MON NOV 26 2007

...FREEZING RAIN ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE
FREEZING RAIN ADVISORY. 

TEMPERATURES HAVE RISEN ABOVE THE FREEZING MARK.

$$

NJZ001-PAZ054-055-261200-
/O.CON.KPHI.ZR.Y.0002.000000T0000Z-071126T1200Z/
SUSSEX-CARBON-MONROE-
INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG
319 AM EST MON NOV 26 2007

...FREEZING RAIN ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...

A FREEZING RAIN ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING. 

A STORM SYSTEM OVER THE MISSISSIPPI VALLEY WILL INTENSIFY AS IT
MOVES NORTHEAST. ALTHOUGH THE CENTER OF THE STORM IS QUITE A
DISTANCE AWAY FROM THE MID-ATLANTIC REGION... THE ASSOCIATED
PRECIPITATION HAS SPREAD INTO THE AREA.

MOST TEMPERATURES HAVE RISEN ABOVE FREEZING, BUT SOME ICY
CONDITIONS WERE STILL REPORTED IN THE NORTHERN PARTS OF THE
POCONOS AND SUSSEX COUNTY NEW JERSEY. TEMPERATURES WILL CONTINUE
TO RISE THIS MORNING AND SHOULD BE ABOVE FREEZING BY AROUND
DAYBREAK IN ALL AREAS.  

IF YOU PLAN TO BE TRAVELING EARLY, PLEASE BE WARY OF CHANGING ROAD
CONDITIONS AND KEEP PLENTY OF DISTANCE BETWEEN YOURSELF AND THE
VEHICLES AROUND YOU. PLEASE BE EXTRA CAUTIOUS WHILE GOING OVER
BRIDGES AND OVERPASSES. 

$$

GIGI
000 
WWUS41 KPHI 260958
WSWPHI

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
458 AM EST MON NOV 26 2007


NJZ001-PAZ054-055-261100-
/O.CAN.KPHI.ZR.Y.0002.000000T0000Z-071126T1200Z/
SUSSEX-CARBON-MONROE-
INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG
458 AM EST MON NOV 26 2007

...FREEZING RAIN ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE
FREEZING RAIN ADVISORY. TEMPERATURES HAVE RISEN ABOVE FREEZING AND 
ADDITIONAL FREEZING RAIN IS NOT EXPECTED.
$$

TFG

Nearby

Freezing Rain Advisories in Pennsylvania, 2007Freezing Rain Advisories in New Jersey, 2007Every freezing rain advisory in 2007

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.