Alert archive / Pennsylvania / Frost Advisories in 2006

Frost Advisory 3, NWS Philadelphia/Mount Holly

April 30, 20064 counties in Pennsylvania; Morris County, Sussex County, Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this frost advisory at Apr 30, 2006, 3:15 PM EDT for 4 counties in Pennsylvania; Morris County, Sussex County, Warren County, New Jersey. It took effect at May 1, 2006, 3:00 AM EDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Apr 30, 2006, 3:15 PM EDT (19:15 UTC)
In effect from
May 1, 2006, 3:00 AM EDT
Expired
May 1, 2006, 8:00 AM EDT
In force
5 hr
Issued by
NWS Philadelphia/Mount Holly

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

The radar

The Philadelphia radar (KDIX), 123 km from the middle of the area, began a volume at 19:19 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 12:00Z, 7.3 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 12:00Z on 2006-04-30Temperature 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 12:00Z on 2006-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
2146 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
5 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 301915
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
315 PM EDT SUN APR 30 2006

NJZ001-007-008-PAZ054-055-061-062-011000-
/O.NEW.KPHI.FR.Y.0003.060501T0700Z-060501T1200Z/
SUSSEX-WARREN-MORRIS-CARBON-MONROE-LEHIGH-NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
JIM THORPE...STROUDSBURG...ALLENTOWN...BETHLEHEM...EASTON
315 PM EDT SUN APR 30 2006

...FROST ADVISORY IN EFFECT FROM 3 AM TO 8 AM EDT MONDAY...

UNDER A MOSTLY CLEAR SKY WITH A LIGHT WIND...TEMPERATURES ARE
EXPECTED TO DROP INTO THE MIDDLE AND UPPER 30S LATE TONIGHT IN
THE POCONO REGION...THE LEHIGH VALLEY AND NORTHWESTERN NEW
JERSEY. AREAS OF FROST WILL LIKELY DEVELOP. AS A RESULT...THE
NATIONAL WEATHER SERVICE HAS ISSUED A FROST ADVISORY FOR LATE
TONIGHT AND EARLY MONDAY MORNING.

BE SURE TO PROTECT SENSITIVE VEGETATION AND BRING ANY POTTED PLANTS 
INDOORS.

$$

IOVINO
1 follow-up statement
000 
WWUS71 KPHI 010623
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
223 AM EDT MON MAY 1 2006

NJZ001-007-008-PAZ054-055-061-062-011200-
/O.CON.KPHI.FR.Y.0003.060501T0700Z-060501T1200Z/
SUSSEX-WARREN-MORRIS-CARBON-MONROE-LEHIGH-NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
JIM THORPE...STROUDSBURG...ALLENTOWN...BETHLEHEM...EASTON
223 AM EDT MON MAY 1 2006

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING...

TEMPERATURES ONCE AGAIN DROPPED INTO THE 30S OVER OUTLYING AND
RURAL AREAS OVERNIGHT. THESE COLD TEMPERATURES COMBINED WITH LIGHT
WINDS, HAVE ALLOWED SCATTERED FROST TO FORM.

BE SURE TO PROTECT SENSITIVE VEGETATION AND BRING ANY POTTED
PLANTS INDOORS.

$$


STAUBER

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 4:24 PM EDTFire Weather WatchPHIDelaware, Philadelphia11 hr

Nearby

Frost Advisories in Pennsylvania, 2006Frost Advisories in New Jersey, 2006Every frost advisory in 2006

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.