Alert archive / Pennsylvania / Frost Advisories in 2007

Frost Advisory 2, NWS Philadelphia/Mount Holly

May 3, 2007Sussex County, New Jersey; Carbon County, Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this frost advisory at May 3, 2007, 3:30 PM EDT for Sussex County, New Jersey; Carbon County, Monroe County, Pennsylvania. It took effect at May 4, 2007, 3:00 AM EDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
May 3, 2007, 3:30 PM EDT (19:30 UTC)
In effect from
May 4, 2007, 3:00 AM EDT
Expired
May 4, 2007, 8:15 AM EDT
In force
5 hr
Issued by
NWS Philadelphia/Mount Holly

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

The radar

The Philadelphia radar (KDIX), 140 km from the middle of the area, began a volume at 19:28 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.5 hours before the alert went out and 189 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, Phillips Aaf/Abe, MD at 12:00Z on 2007-05-03Temperature 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, Phillips Aaf/Abe, MD at 12:00Z on 2007-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.19395878Sfc1 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
2344 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
198 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 
WWUS71 KPHI 031930
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
330 PM EDT THU MAY 3 2007

...AREAS OF FROST POSSIBLE LATE TONIGHT AND EARLY FRIDAY
MORNING...

NJZ001-PAZ054-055-041000-
/O.NEW.KPHI.FR.Y.0002.070504T0700Z-070504T1300Z/
SUSSEX-CARBON-MONROE-
INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG
330 PM EDT THU MAY 3 2007

...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM EDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 3 AM TO 9 AM EDT FRIDAY. 

CLEAR SKIES AND LIGHT WINDS WILL ALLOW TEMPERATURES TO DROP INTO
THE LOW TO MID 30S OVERNIGHT ACROSS THE POCONOS OF PENNSYLVANIA
AND SUSSEX COUNTY, NEW JERSEY. WITH THESE COLD TEMPERATURES, THERE
IS THE POSSIBILITY OF FROST FORMATION LATE TONIGHT INTO EARLY
FRIDAY MORNING. A FEW AREAS MAY EVEN SEE 32 DEGREES. THE MOST
LIKELY AREAS TO SEE THE COLDEST TEMPERATURES ARE SHELTERED VALLEYS
AND THE HIGHER ELEVATIONS.

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

$$


ROBERTSON
3 follow-up statements
000 
WWUS71 KPHI 040802
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
402 AM EDT FRI MAY 4 2007

NJZ001-PAZ054-055-041300-
/O.CON.KPHI.FR.Y.0002.000000T0000Z-070504T1300Z/
SUSSEX-CARBON-MONROE-
INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG
402 AM EDT FRI MAY 4 2007

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...

A FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING. 

CLEAR SKIES AND LIGHT WINDS HAVE ALLOWED TEMPERATURES TO DROP INTO
THE LOWER AND MID 30S...MAINLY IN SHELTERED VALLEYS. WITH THESE
COLD TEMPERATURES...FROST IS EXPECTED.

$$

KRUZDLO
000 
WWUS71 KPHI 041215
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
815 AM EDT FRI MAY 4 2007

NJZ001-PAZ054-055-041315-
/O.CAN.KPHI.FR.Y.0002.000000T0000Z-070504T1300Z/
SUSSEX-CARBON-MONROE-
INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG
815 AM EDT FRI MAY 4 2007

...FROST ADVISORY IS CANCELLED...

BY 8:00 AM, TEMPERATURES HAS RISEN INTO THE 40S THROUGHOUT MOST
OF THE POCONO REGION IN PENNSYLVANIA AND SUSSEX COUNTY IN NEW
JERSEY. AS A RESULT, THE NATIONAL WEATHER SERVICE HAS DISCONTINUED
THE FROST ADVISORY.

$$

IOVINO
000 
WWUS71 KPHI 041220 CCA
NPWPHI

URGENT - WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
818 AM EDT FRI MAY 4 2007

NJZ001-PAZ054-055-041330-
/O.COR.KPHI.FR.Y.0002.000000T0000Z-070504T1300Z/
SUSSEX-CARBON-MONROE-
INCLUDING THE CITIES OF...NEWTON...JIM THORPE...STROUDSBURG
818 AM EDT FRI MAY 4 2007

...FROST ADVISORY IS CANCELLED...

BY 8:00 AM, TEMPERATURES HAD RISEN INTO THE 40S THROUGHOUT MOST
OF THE POCONO REGION IN PENNSYLVANIA AND SUSSEX COUNTY IN NEW
JERSEY. AS A RESULT, THE NATIONAL WEATHER SERVICE HAS DISCONTINUED
THE FROST ADVISORY.

$$

IOVINO

Nearby

Frost Advisories in Pennsylvania, 2007Frost Advisories in New Jersey, 2007Every frost 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.