Alert archive / New Jersey / Frost Advisories in 2022
Frost Advisory 9, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this frost advisory at Nov 8, 2022, 5:49 PM EST for 4 counties in New Jersey; New Castle County, Delaware; Delaware County, Pennsylvania. It took effect at Nov 9, 2022, 1:00 AM EST. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Nov 8, 2022, 5:49 PM EST (22:49 UTC)
- In effect from
- Nov 9, 2022, 1:00 AM EST
- Expired
- Nov 9, 2022, 3:06 AM EST
- In force
- 2 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties New Castle County, DE, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ, Delaware County, PA
The radar
The Philadelphia radar (KDIX), 80 km from the middle of the area, began a volume at 22:49 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, 10.8 hours before the alert went out and 192 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
- 2191 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -90 m²/s²
- 0-3 km storm-relative helicity
- -21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
141 WWUS71 KPHI 082249 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 549 PM EST Tue Nov 8 2022 NJZ019-PAZ104-106-091300- /O.NEW.KPHI.FZ.W.0005.221109T0600Z-221109T1300Z/ Northwestern Burlington-Eastern Montgomery-Lower Bucks- Including the cities of Moorestown, Mount Holly, Norristown, Lansdale, Morrisville, and Doylestown 549 PM EST Tue Nov 8 2022 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 8 AM EST WEDNESDAY... * WHAT...Minimum temperatures as low as 31 degrees. This will also result in some areas of frost formation. * WHERE...In New Jersey, Northwestern Burlington. In Pennsylvania, Eastern Montgomery and Lower Bucks. * WHEN...From 1 AM to 8 AM EST Wednesday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ DEZ001-NJZ016>018-021-PAZ070-091300- /O.NEW.KPHI.FR.Y.0009.221109T0600Z-221109T1300Z/ New Castle-Salem-Gloucester-Camden-Cumberland-Delaware- Including the cities of Wilmington, Pennsville, Glassboro, Camden, Cherry Hill, Millville, and Media 549 PM EST Tue Nov 8 2022 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM EST WEDNESDAY... * WHAT...Minimum temperatures from 33 to 35 degrees will result in some areas of frost formation. * WHERE...In Delaware, New Castle. In New Jersey, Salem, Gloucester, Camden and Cumberland. In Pennsylvania, Delaware. * WHEN...From 1 AM to 8 AM EST Wednesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Staarmann
1 follow-up statement
784 WWUS71 KPHI 090806 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 306 AM EST Wed Nov 9 2022 NJZ019-PAZ104-106-090915- /O.CAN.KPHI.FZ.W.0005.000000T0000Z-221109T1300Z/ Northwestern Burlington-Eastern Montgomery-Lower Bucks- Including the cities of Moorestown, Mount Holly, Norristown, Lansdale, Morrisville, and Doylestown 306 AM EST Wed Nov 9 2022 ...FREEZE WARNING IS CANCELLED... A northeast wind around 5 to 10 MPH will prevent temperatures from falling to the freezing mark early this morning. As a result, the Freeze Warning has been cancelled. $$ DEZ001-NJZ016>018-021-PAZ070-090915- /O.CAN.KPHI.FR.Y.0009.000000T0000Z-221109T1300Z/ New Castle-Salem-Gloucester-Camden-Cumberland-Delaware- Including the cities of Wilmington, Pennsville, Glassboro, Camden, Cherry Hill, Millville, and Media 306 AM EST Wed Nov 9 2022 ...FROST ADVISORY IS CANCELLED... A northeast wind around 5 to 10 MPH will prevent frost from developing early this morning. As a result, the Frost Advisory has been cancelled. $$ Iovino
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 8, 5:49 PM EST | Freeze Warning | PHI | Burlington | 9 hr |
Nearby
Frost Advisories in New Jersey, 2022Frost Advisories in Delaware, 2022Frost Advisories in Pennsylvania, 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.