From the NWS:

URGENT - WEATHER MESSAGE

NATIONAL WEATHER SERVICE MOUNT HOLLY NJ

408 AM EDT WED MAY 4 2005

DEZ001-MDZ008-NJZ001-007>010-012-013-015>023-027-PAZ054-055-060>062-

067>070-042100-

ATLANTIC NJ-BERKS PA-BUCKS PA-CAMDEN NJ-CAPE MAY NJ-CARBON PA-

CECIL MD-CHESTER PA-CUMBERLAND NJ-DELAWARE PA-GLOUCESTER NJ-

HUNTERDON NJ-LEHIGH PA-MERCER NJ-MIDDLESEX NJ-MONROE PA-

MONTGOMERY PA-MORRIS NJ-NEW CASTLE DE-NORTHAMPTON PA-

NORTHWESTERN BURLINGTON NJ-OCEAN NJ-SALEM NJ-SOMERSET NJ-

SOUTHEASTERN BURLINGTON NJ-SUSSEX NJ-WARREN NJ-WESTERN MONMOUTH NJ-

INCLUDING THE CITIES OF...READING...BETHLEHEM...ALLENTOWN...

VINELAND...TRENTON...PERTH AMBOY...NEW BRUNSWICK...CAMDEN...

WILMINGTON AND NEWARK

408 AM EDT WED MAY 4 2005

...A FROST ADVISORY IS IN EFFECT FOR LATE TONIGHT AND EARLY THURSDAY

MORNING...

AN UNSEASONABLY CHILLY AIR MASS WILL CONTINUE TO PREVAIL ACROSS THE

AREA. SKIES ARE EXPECTED TO BECOME CLEAR TONIGHT WITH LIGHT WINDS.

THE COMBINATION WILL CAUSE EXCELLENT RADIATIONAL COOLING CONDITIONS.

FROST IS EXPECTED TO FORM LATE TONIGHT AND BE FAIRLY WIDESPREAD IN

RURAL AREAS AND COLDER LOW LYING AREAS IN THE SUBURBS. IF YOU HAD

FROST TUESDAY MORNING, YOU SHOULD EXPECT MORE LATE TONIGHT AND EARLY

THURSDAY MORNING. EVEN LOCATIONS THAT DID NOT HAVE FROST TUESDAY

MORNING MIGHT SEE SOME THURSDAY MORNING.

THERE MIGHT EVEN BE POCKETS OF LOW TEMPERATURES AT OR BELOW THE

FREEZING MARK IN NORTHWEST NEW JERSEY AND THE POCONOS.

PEOPLE WITH AGRICULTURAL OR GARDENING INTERESTS IN THE ADVISED AREA

SHOULD PROTECT TENDER VEGETABLES AND FLOWERS WITH PROTECTIVE

COVERING OR DOUSING THEM WITH WATER. ALSO, POTTED PLANTS NORMALLY

LEFT OUTDOORS SHOULD BE BROUGHT INSIDE AWAY FROM THE COLD.

THIS SHOULD BE THE LAST NIGHT THAT THIS PRESENT UNSEASONABLY CHILLY

AIR MASS AFFECTS US. BUT IT IS NOT UNUSUAL FOR ADDITIONAL FROST TO

POSSIBLY OCCUR DEEPER INTO THIS MONTH IN COLDER AREAS OF

PENNSYLVANIA AND NEW JERSEY.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA OUTLET FOR

FURTHER DETAILS OR UPDATES.