Alert archive / New Jersey / Frost Advisories in 2005

Frost Advisory 3, NWS Philadelphia/Mount Holly

October 28, 20054 states

NWS Philadelphia/Mount Holly issued this frost advisory at Oct 28, 2005, 3:15 PM EDT for 4 states. It took effect at Oct 29, 2005, 2:00 AM EDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Oct 28, 2005, 3:15 PM EDT (19:15 UTC)
In effect from
Oct 29, 2005, 2:00 AM EDT
Expired
Oct 29, 2005, 7:00 AM EDT
In force
5 hr
Issued by
NWS Philadelphia/Mount Holly
All 21 counties

New Castle County, DE, Cecil County, MD, Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Salem County, NJ, Somerset County, NJ, Warren County, NJ, Berks County, PA, Delaware County, PA, Lehigh County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 53 km from the middle of the area, began a volume at 19:14 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 202 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 2005-10-28Temperature 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 2005-10-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -102 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
1374 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
-102 m²/s²
0-3 km storm-relative helicity
14 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 281915
NPWPHI

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
315 PM EDT FRI OCT 28 2005

DEZ001-MDZ008-NJZ007>010-012-013-015>023-027-PAZ060>062-067>070-
291100-
/X.NEW.KPHI.FR.Y.0003.051029T0600Z-051029T1100Z/
NEW CASTLE-CECIL-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
SOUTHEASTERN BURLINGTON-BERKS-LEHIGH-NORTHAMPTON-CHESTER-
MONTGOMERY-BUCKS-DELAWARE-
INCLUDING THE CITIES OF...WILMINGTON...ELKTON...WASHINGTON...
MORRISTOWN...FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD...
TRENTON...PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...
MOORESTOWN...MOUNT HOLLY...JACKSON...MILLVILLE...HAMMONTON...
CAPE MAY COURT HOUSE...WHARTON STATE FOREST...READING...
ALLENTOWN...BETHLEHEM...EASTON...WEST CHESTER...NORRISTOWN...
DOYLESTOWN...MEDIA
315 PM EDT FRI OCT 28 2005

...FROST ADVISORY IN EFFECT FROM 2 AM TO 7 AM EDT SATURDAY...

HIGH PRESSURE BUILDING IN FROM THE GREAT LAKES AND LOW PRESSURE OFF 
THE EAST COAST WILL KEEP A COOL AND DRY NORTHERLY FLOW ACROSS OUR 
AREA INTO THE FIRST PART OF THE WEEKEND. SKIES THAT WERE MOSTLY 
CLOUDY DURING THE AFTERNOON WILL GRADUALLY BECOME CLEAR TO PARTLY 
CLOUDY LATER TONIGHT. THIS WILL HELP LOWER TEMPERATURES INTO THE LOW 
TO MID 30S IN THE ADVISORY AREA AND AREAS OF FROST ARE EXPECTED TO 
FORM AFTER MIDNIGHT. ITS POSSIBLE THAT THE CLOUDS MAY LINGER ACROSS 
THE REGION FOR AWHILE TONIGHT. IF THE CLOUDS PERSIST, IT COULD 
REMAIN WARM ENOUGH TO PREVENT A WIDESPREAD FROST.  

THIS ADVISORY DOES NOT INCLUDE THE CITY OF PHILADELPHIA OR THE 
COMMUNITIES ALONG THE NEW JERSEY COAST WHERE TEMPERATURES SHOULD 
DROP ONLY INTO THE UPPER 30S AND LOWER 40S.

IF YOU HAVE ANY REMAINING GARDEN PLANTS THAT YOU WOULD LIKE TO SAVE, 
BE SURE TO COVER THEM FOR TONIGHT.  ALSO, YOU MIGHT WANT TO BRING 
ANY POTTED PLANTS INDOORS TO PROTECT THEM FROM THE FROST.

$$

Nearby

Frost Advisories in New Jersey, 2005Frost Advisories in Pennsylvania, 2005Frost Advisories in Maryland, 2005Every frost advisory in 2005

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.