Alert archive / New Jersey / Winter Weather Advisories in 2021
Winter Weather Advisory 12, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this winter weather advisory at Dec 24, 2021, 9:37 AM EST for Sussex County, Warren County, New Jersey; Carbon County, Monroe County, Pennsylvania. It took effect at Dec 24, 2021, 10:00 PM EST. It was in force for 11 hr.
The area
The counties it named.
The facts
- Issued
- Dec 24, 2021, 9:37 AM EST (14:37 UTC)
- In effect from
- Dec 24, 2021, 10:00 PM EST
- Expired
- Dec 25, 2021, 9:00 AM EST
- In force
- 11 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Sussex County, NJ, Warren County, NJ, Carbon County, PA, Monroe County, PA
The radar
The Philadelphia radar (KDIX), 133 km from the middle of the area, began a volume at 14:36 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, 2.6 hours before the alert went out and 195 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
- 425 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 531 m²/s²
- 0-3 km storm-relative helicity
- 884 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
209 WWUS41 KPHI 241437 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 937 AM EST Fri Dec 24 2021 NJZ001-PAZ054-055-250345- /O.NEW.KPHI.WW.Y.0012.211225T0300Z-211225T1100Z/ Sussex-Carbon-Monroe- Including the cities of Newton, Jim Thorpe, and Stroudsburg 937 AM EST Fri Dec 24 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 6 AM EST SATURDAY... * WHAT...Freezing rain expected. Total ice accumulations of a light glaze. * WHERE...In New Jersey, Sussex. In Pennsylvania, Carbon and Monroe. * WHEN...From 10 PM this evening to 6 AM EST Saturday. * IMPACTS...Very slippery sidewalks, roads and bridges are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible isolated power outages. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Johnson
4 follow-up statements
693 WWUS41 KPHI 242015 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 315 PM EST Fri Dec 24 2021 NJZ007-250915- /O.EXA.KPHI.WW.Y.0012.211225T0300Z-211225T1100Z/ Warren- Including the city of Washington 315 PM EST Fri Dec 24 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 6 AM EST SATURDAY... * WHAT...Freezing rain expected. Total ice accumulations of a light glaze. * WHERE...Warren. * WHEN...From 10 PM this evening to 6 AM EST Saturday. * IMPACTS...Very slippery sidewalks, roads and bridges are possible. * ADDITIONAL DETAILS...The main areas affected will be locations along and north of the Interstate 80 corridor within the advisory area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible isolated power outages. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ001-PAZ054-055-250915- /O.CON.KPHI.WW.Y.0012.211225T0300Z-211225T1100Z/ Sussex-Carbon-Monroe- Including the cities of Newton, Jim Thorpe, and Stroudsburg 315 PM EST Fri Dec 24 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 6 AM EST SATURDAY... * WHAT...Freezing rain expected. Total ice accumulations of around one tenth of an inch. * WHERE...In New Jersey, Sussex. In Pennsylvania, Carbon and Monroe. * WHEN...From 10 PM this evening to 6 AM EST Saturday. * IMPACTS...Difficult travel conditions are possible. * ADDITIONAL DETAILS...The main areas affected will be locations along and north of the Interstate 80 corridor within the advisory area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible isolated power outages. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Johnson
424 WWUS41 KPHI 250520 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 1220 AM EST Sat Dec 25 2021 NJZ001-007-PAZ054-055-251100- /O.CON.KPHI.WW.Y.0012.000000T0000Z-211225T1100Z/ Sussex-Warren-Carbon-Monroe- Including the cities of Newton, Washington, Jim Thorpe, and Stroudsburg 1220 AM EST Sat Dec 25 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST EARLY THIS MORNING... * WHAT...Freezing rain. Ice accumulations of a few hundredths of an inch possible. * WHERE...In New Jersey, Sussex and Warren. In Pennsylvania, Carbon and Monroe. * WHEN...Until 6 AM EST early this morning. * IMPACTS...Very slippery sidewalks, roads and bridges are possible. * ADDITIONAL DETAILS...The main areas affected will be locations along and north of the Interstate 80 corridor within the advisory area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
673 WWUS41 KPHI 251054 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 554 AM EST Sat Dec 25 2021 NJZ001-007-PAZ054-055-251400- /O.EXT.KPHI.WW.Y.0012.000000T0000Z-211225T1400Z/ Sussex-Warren-Carbon-Monroe- Including the cities of Newton, Washington, Jim Thorpe, and Stroudsburg 554 AM EST Sat Dec 25 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 9 AM EST THIS MORNING... * WHAT...Freezing rain. Additional ice accumulations of a light glaze. * WHERE...In New Jersey, Sussex and Warren. In Pennsylvania, Carbon and Monroe. * WHEN...Until 9 AM EST this morning. * IMPACTS...Very slippery sidewalks, roads and bridges are possible. * ADDITIONAL DETAILS...The main areas affected will be locations along and north of the Interstate 80 corridor within the advisory area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
039 WWUS41 KPHI 251350 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 850 AM EST Sat Dec 25 2021 NJZ001-007-PAZ054-055-251500- /O.EXP.KPHI.WW.Y.0012.000000T0000Z-211225T1400Z/ Sussex-Warren-Carbon-Monroe- Including the cities of Newton, Washington, Jim Thorpe, and Stroudsburg 850 AM EST Sat Dec 25 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 9 AM EST THIS MORNING... Temperatures will continue to rise slowly this morning. As a result, the potential for freezing rain is coming to an end. The Winter Weather Advisory will be allowed to expire. $$ Iovino
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 24, 3:19 PM EST | Small Craft Advisory | PHI | 42 hr |
Nearby
Winter Weather Advisories in New Jersey, 2021Winter Weather Advisories in Pennsylvania, 2021Every winter weather advisory in 2021
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.