Alert archive / New Jersey / Frost Advisories in 2016

Frost Advisory 7, NWS Philadelphia/Mount Holly

April 27, 20165 counties in New Jersey; Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this frost advisory at Apr 27, 2016, 4:00 AM EDT for 5 counties in New Jersey; Northampton County, Pennsylvania. It took effect at Apr 28, 2016, 4:00 AM EDT. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Apr 27, 2016, 4:00 AM EDT (08:00 UTC)
In effect from
Apr 28, 2016, 4:00 AM EDT
Expired
Apr 28, 2016, 6:22 AM EDT
In force
2 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 101 km from the middle of the area, began a volume at 08:00 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, 8.0 hours before the alert went out and 167 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 2016-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 joules per kilogram.LCLEL10008507005003002001001 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 2016-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -33 square meters per square second.1939587897Sfc1 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
7 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
471 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
-33 m²/s²
0-3 km storm-relative helicity
33 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

535 
WWUS71 KPHI 270800
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
400 AM EDT WED APR 27 2016

NJZ001-007>010-PAZ062-272100-
/O.NEW.KPHI.FR.Y.0007.160428T0800Z-160428T1200Z/
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
FLEMINGTON...SOMERVILLE...BETHLEHEM...EASTON
400 AM EDT WED APR 27 2016

...FROST ADVISORY IN EFFECT FROM 4 AM TO 8 AM EDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FROST
ADVISORY. IT IS IN EFFECT FROM 400 AM UNTIL 800 AM THURSDAY.

* TEMPERATURES...FALLING INTO THE MIDDLE 30S IN MUCH OF THE
  ADVISORY AREA LATE TONIGHT.

* TIMING...AREAS OF FROST ARE EXPECTED TO DEVELOP AFTER 400 AM.

* IMPACTS...THE FROST MAY DAMAGE SENSITIVE OUTDOOR PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS FROST ADVISORY MEANS THAT AREAS OF FROST ARE EXPECTED.
SENSITIVE OUTDOOR PLANTS MAY BE DAMAGED IF LEFT UNCOVERED.

&&

$$

IOVINO
3 follow-up statements
964 
WWUS71 KPHI 271933
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
333 PM EDT WED APR 27 2016


NJZ001-007>010-PAZ062-280845-
/O.CON.KPHI.FR.Y.0007.160428T0800Z-160428T1200Z/
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
FLEMINGTON...SOMERVILLE...BETHLEHEM...EASTON
333 PM EDT WED APR 27 2016

...FROST ADVISORY REMAINS IN EFFECT FROM 4 AM TO 8 AM EDT
THURSDAY...

* TEMPERATURES...FALLING INTO THE MIDDLE 30S IN MUCH OF THE
  ADVISORY AREA LATE TONIGHT.

* TIMING...AREAS OF FROST ARE EXPECTED TO DEVELOP BEFORE DAWN
  THURSDAY MORNING.

* IMPACTS...THE FROST MAY DAMAGE SENSITIVE OUTDOOR PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS FROST ADVISORY MEANS THAT AREAS OF FROST ARE EXPECTED.
SENSITIVE OUTDOOR PLANTS MAY BE DAMAGED IF LEFT UNCOVERED.

&&

$$

SFJ
255 
WWUS71 KPHI 280113
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
913 PM EDT WED APR 27 2016

NJZ001-007>010-PAZ062-281200-
/O.CON.KPHI.FR.Y.0007.160428T0800Z-160428T1200Z/
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
FLEMINGTON...SOMERVILLE...BETHLEHEM...EASTON
913 PM EDT WED APR 27 2016

...FROST ADVISORY REMAINS IN EFFECT FROM 4 AM TO 8 AM EDT
THURSDAY...

* TEMPERATURES...FALLING INTO THE MIDDLE 30S ACROSS MUCH OF THE
  ADVISORY AREA LATE TONIGHT.

* TIMING...AREAS OF FROST ARE EXPECTED TO DEVELOP BEFORE DAWN 
  THURSDAY MORNING.

* IMPACTS...THE FROST MAY DAMAGE SENSITIVE OUTDOOR PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS FROST ADVISORY MEANS THAT AREAS OF FROST ARE EXPECTED.
SENSITIVE OUTDOOR PLANTS MAY BE DAMAGED IF LEFT UNCOVERED.

&&

$$
936 
WWUS71 KPHI 281022
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
622 AM EDT THU APR 28 2016


NJZ001-007>010-PAZ062-281130-
/O.CAN.KPHI.FR.Y.0007.000000T0000Z-160428T1200Z/
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
FLEMINGTON...SOMERVILLE...BETHLEHEM...EASTON
622 AM EDT THU APR 28 2016

...FROST ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE
FROST ADVISORY.

$$

Nearby

Frost Advisories in New Jersey, 2016Frost Advisories in Pennsylvania, 2016Every frost advisory in 2016

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.