Alert archive / New Jersey / Frost Advisories in 2018
Frost Advisory 5, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this frost advisory at Oct 24, 2018, 3:12 PM EDT for 4 states. It took effect at Oct 25, 2018, 2:00 AM EDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Oct 24, 2018, 3:12 PM EDT (19:12 UTC)
- In effect from
- Oct 25, 2018, 2:00 AM EDT
- Expired
- Oct 25, 2018, 9:00 AM EDT
- In force
- 7 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Kent County, DE, New Castle County, DE, Sussex County, DE, Caroline County, MD, Cecil County, MD, Kent County, MD, Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Gloucester County, NJ, Salem County, NJ, Berks County, PA, Bucks County, PA, Chester County, PA, Lehigh County, PA, Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 90 km from the middle of the area, began a volume at 19:11 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
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.2 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.
- Mixed-layer CAPE
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1084 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
898 WWUS71 KPHI 241912 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 312 PM EDT Wed Oct 24 2018 DEZ001>003-MDZ008-012-020-NJZ016>019-022-023-027-PAZ060-061- 101>103-105-250900- /O.NEW.KPHI.FR.Y.0005.181025T0600Z-181025T1300Z/ New Castle-Kent-Inland Sussex-Cecil-Kent MD-Caroline-Salem- Gloucester-Camden-Northwestern Burlington-Atlantic-Cape May- Southeastern Burlington-Berks-Lehigh-Western Chester- Eastern Chester-Western Montgomery-Upper Bucks- Including the cities of Wilmington, Dover, Georgetown, Elkton, Chestertown, Denton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Hammonton, Cape May Court House, Wharton State Forest, Reading, Allentown, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Chalfont, and Perkasie 312 PM EDT Wed Oct 24 2018 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM EDT THURSDAY... The National Weather Service in Mount Holly has issued a Frost Advisory, which is in effect from 2 AM to 9 AM EDT Thursday. * TEMPERATURES...Dropping to around 35 degrees. * TIMING...The coldest temperatures are expected to occur toward daybreak Thursday. * IMPACTS...Frost may damage sensitive vegetation. Take steps now to protect tender plants from the cold. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$
2 follow-up statements
314 WWUS71 KPHI 250744 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 344 AM EDT Thu Oct 25 2018 DEZ001>003-MDZ008-012-020-NJZ016>019-022-023-027-PAZ060-061- 101>103-105-251300- /O.CON.KPHI.FR.Y.0005.000000T0000Z-181025T1300Z/ New Castle-Kent-Inland Sussex-Cecil-Kent MD-Caroline-Salem- Gloucester-Camden-Northwestern Burlington-Atlantic-Cape May- Southeastern Burlington-Berks-Lehigh-Western Chester- Eastern Chester-Western Montgomery-Upper Bucks- Including the cities of Wilmington, Dover, Georgetown, Elkton, Chestertown, Denton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Hammonton, Cape May Court House, Wharton State Forest, Reading, Allentown, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Chalfont, and Perkasie 344 AM EDT Thu Oct 25 2018 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * TEMPERATURES...Falling into the middle 30s. * IMPACTS...Frost may damage sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that widespread frost is expected. Sensitive outdoor plants may be damaged if left unprotected. && $$ Iovino
985 WWUS71 KPHI 251259 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 859 AM EDT Thu Oct 25 2018 DEZ001>003-MDZ008-012-020-NJZ016>019-022-023-027-PAZ060-061- 101>103-105-251400- /O.EXP.KPHI.FR.Y.0005.000000T0000Z-181025T1300Z/ New Castle-Kent-Inland Sussex-Cecil-Kent MD-Caroline-Salem- Gloucester-Camden-Northwestern Burlington-Atlantic-Cape May- Southeastern Burlington-Berks-Lehigh-Western Chester- Eastern Chester-Western Montgomery-Upper Bucks- Including the cities of Wilmington, Dover, Georgetown, Elkton, Chestertown, Denton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Hammonton, Cape May Court House, Wharton State Forest, Reading, Allentown, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Chalfont, and Perkasie 859 AM EDT Thu Oct 25 2018 ...FROST ADVISORY WILL EXPIRE AT 9 AM EDT THIS MORNING... $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 24, 3:19 PM EDT | Gale Watch | PHI | 36 hr |
Nearby
Frost Advisories in New Jersey, 2018Frost Advisories in Pennsylvania, 2018Frost Advisories in Delaware, 2018Every frost advisory in 2018
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.