Alert archive / New Jersey / Frost Advisories in 2022
Frost Advisory 6, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this frost advisory at Oct 19, 2022, 1:26 PM EDT for 4 states. It took effect at Oct 20, 2022, 12:00 AM EDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Oct 19, 2022, 1:26 PM EDT (17:26 UTC)
- In effect from
- Oct 20, 2022, 12:00 AM EDT
- Expired
- Oct 20, 2022, 9:00 AM EDT
- In force
- 9 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Kent County, DE, New Castle County, DE, Sussex County, DE, Caroline County, MD, Kent County, MD, Queen Anne's County, MD, Burlington County, NJ, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Salem County, NJ, Bucks County, PA, Delaware County, PA, Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 77 km from the middle of the area, began a volume at 17:25 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
Wallops Is Stn, VA (KWAL), launched 12:00Z, 5.4 hours before the alert went out and 193 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1429 m above ground
- 0-6 km bulk shear
- 97 kt
- 0-1 km storm-relative helicity
- -58 m²/s²
- 0-3 km storm-relative helicity
- -31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
532 WWUS71 KPHI 191726 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 126 PM EDT Wed Oct 19 2022 DEZ001>003-MDZ012-015-020-NJZ012-013-015>019-021-PAZ070-104-106- 201015- /O.NEW.KPHI.FR.Y.0006.221020T0400Z-221020T1300Z/ New Castle-Kent-Inland Sussex-Kent MD-Queen Annes-Caroline- Middlesex-Western Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Cumberland-Delaware-Eastern Montgomery- Lower Bucks- Including the cities of Wilmington, Dover, Georgetown, Chestertown, Centreville, Denton, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Millville, Media, Norristown, Lansdale, Morrisville, and Doylestown 126 PM EDT Wed Oct 19 2022 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT THURSDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of central, northern and southern Delaware, northeast Maryland, central, northern and southern New Jersey and southeast Pennsylvania. * WHEN...From midnight tonight to 9 AM EDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
1 follow-up statement
674 WWUS71 KPHI 200104 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 904 PM EDT Wed Oct 19 2022 DEZ001>003-MDZ012-015-020-NJZ012-013-015>019-021-PAZ070-104-106- 201300- /O.CON.KPHI.FR.Y.0006.221020T0400Z-221020T1300Z/ New Castle-Kent-Inland Sussex-Kent MD-Queen Annes-Caroline- Middlesex-Western Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Cumberland-Delaware-Eastern Montgomery- Lower Bucks- Including the cities of Wilmington, Dover, Georgetown, Chestertown, Centreville, Denton, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Millville, Media, Norristown, Lansdale, Morrisville, and Doylestown 904 PM EDT Wed Oct 19 2022 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THURSDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of central, northern and southern Delaware, northeast Maryland, central, northern and southern New Jersey and southeast Pennsylvania. * WHEN...From midnight tonight to 9 AM EDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 19, 1:26 PM EDT | Small Craft Advisory | PHI | 15 hr |
Nearby
Frost Advisories in New Jersey, 2022Frost Advisories in Pennsylvania, 2022Frost Advisories in Delaware, 2022Every frost advisory in 2022
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.