Alert archive / New Jersey / Winter Weather Advisories in 2020
Winter Weather Advisory 8, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this winter weather advisory at Dec 15, 2020, 3:29 PM EST for 4 counties in New Jersey; New Castle County, Delaware. It took effect at Dec 16, 2020, 12:00 PM EST. It was in force for 22 hr.
The area
The counties it named.
The facts
- Issued
- Dec 15, 2020, 3:29 PM EST (20:29 UTC)
- In effect from
- Dec 16, 2020, 12:00 PM EST
- Expired
- Dec 17, 2020, 10:00 AM EST
- In force
- 22 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties New Castle County, DE, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Salem County, NJ
The radar
The Philadelphia radar (KDIX), 69 km from the middle of the area, began a volume at 20:28 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, 8.5 hours before the alert went out and 199 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
- 1366 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- -111 m²/s²
- 0-3 km storm-relative helicity
- 180 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
399 WWUS41 KPHI 152029 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 329 PM EST Tue Dec 15 2020 NJZ013-160930- /O.UPG.KPHI.WS.A.0001.201216T1500Z-201217T1500Z/ /O.EXB.KPHI.WS.W.0001.201216T1700Z-201217T1500Z/ Western Monmouth- Including the city of Freehold 329 PM EST Tue Dec 15 2020 ...WINTER STORM WARNING IN EFFECT FROM NOON WEDNESDAY TO 10 AM EST THURSDAY... * WHAT...Heavy mixed precipitation expected. Total snow and sleet accumulations of 5 to 10 inches. Winds gusting as high as 50 mph. * WHERE...Western Monmouth. * WHEN...From noon Wednesday to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the evening commute Wednesday and the morning commute Thursday. The heavy wet snow combined with gusty winds could result in sporadic power outages. * ADDITIONAL DETAILS...Snow will move into the area Wednesday afternoon or early evening. The snow may become heavy at times Wednesday evening and overnight. There will likely be a sharp gradient in snow totals across Monmouth County due to snow mixing with or changing to sleet or rain. The highest totals will occur over the western portion of the county. Over the eastern and southeastern portion of county, lower snowfall totals are forecast. In areas where precipitation changes to sleet or rain, it will then likely change back to snow before ending Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ001-007>010-PAZ054-055-060>062-101-103-105-160930- /O.EXT.KPHI.WS.W.0001.201216T1700Z-201217T1500Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Carbon-Monroe-Berks- Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 329 PM EST Tue Dec 15 2020 ...WINTER STORM WARNING NOW IN EFFECT FROM NOON WEDNESDAY TO 10 AM EST THURSDAY... * WHAT...Heavy snow expected, which may mix with sleet. Total snow accumulations of 12 to 20 inches. Winds gusting as high as 35 mph. * WHERE...Portions of central, northern and northwest New Jersey and southeast Pennsylvania. * WHEN...From noon Wednesday to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the evening commute on Wednesday and the morning commute on Thursday. The heavy snow could result in power outages. * ADDITIONAL DETAILS...Snow will move in from southwest to northeast Wednesday afternoon and early evening. The snow could become heavy at times Wednesday evening into Wednesday night before ending Thursday morning. There may also be some sleet mixed in at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ012-015-PAZ070-071-102-104-106-160930- /O.EXT.KPHI.WS.W.0001.201216T1700Z-201217T1500Z/ Middlesex-Mercer-Delaware-Philadelphia-Eastern Chester- Eastern Montgomery-Lower Bucks- Including the cities of New Brunswick, Trenton, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 329 PM EST Tue Dec 15 2020 ...WINTER STORM WARNING NOW IN EFFECT FROM NOON WEDNESDAY TO 10 AM EST THURSDAY... * WHAT...Heavy mixed precipitation expected. Total snow and sleet accumulations of 6 to 12 inches. Winds gusting as high as 35 mph. * WHERE...Portions of central, northern and northwest New Jersey and southeast Pennsylvania. * WHEN...From noon Wednesday to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the evening commute on Wednesday and the morning commute on Thursday. The heavy snow could result in power outages. * ADDITIONAL DETAILS...Snow will move in from southwest to northeast Wednesday afternoon and early evening. The snow could become heavy at times Wednesday evening. The snow will likely mix with and change to sleet late Wednesday evening and Wednesday night, before ending as a period of snow on Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ DEZ001-NJZ016>019-160930- /O.UPG.KPHI.WS.A.0001.201216T1500Z-201217T1500Z/ /O.NEW.KPHI.WW.Y.0008.201216T1700Z-201217T1500Z/ New Castle-Salem-Gloucester-Camden-Northwestern Burlington- Including the cities of Wilmington, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, and Mount Holly 329 PM EST Tue Dec 15 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON WEDNESDAY TO 10 AM EST THURSDAY... * WHAT...Snow and sleet expected. Total snow and sleet accumulations of 2 to 5 inches. Winds gusting as high as 40 mph. * WHERE...In New Jersey, Salem, Gloucester, Camden and Northwestern Burlington. In Delaware, New Castle. * WHEN...From noon Wednesday to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult. The hazardous conditions could affect the evening commute Wednesday and the morning commute on Thursday. * ADDITIONAL DETAILS...Snow will move in from southwest to northeast Wednesday afternoon and early evening. The snow could become heavy at times Wednesday evening. The snow will mix with and change to sleet or rain late Wednesday evening and Wednesday night, before ending as a period of snow on Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
5 follow-up statements
831 WWUS41 KPHI 160818 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 318 AM EST Wed Dec 16 2020 NJZ001-007>010-PAZ054-055-060>062-101-103-105-162300- /O.CON.KPHI.WS.W.0001.201216T1700Z-201217T1500Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Carbon-Monroe-Berks- Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 318 AM EST Wed Dec 16 2020 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 AM EST THURSDAY... * WHAT...Heavy snow expected. Total snow accumulations of 12 to 20 inches. Winds gusting as high as 35 mph. * WHERE...Portions of northern and northwest New Jersey and east central, northeast and southeast Pennsylvania. * WHEN...From noon today to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the evening commute tonight and the morning commute on Thursday. Heavy snow and gusty winds could result in power outages. * ADDITIONAL DETAILS...Snow will move in from southwest to northeast this afternoon and early evening. The snow could become heavy at times tonight before ending Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ012-015-PAZ070-071-102-104-106-162300- /O.CON.KPHI.WS.W.0001.201216T1700Z-201217T1500Z/ Middlesex-Mercer-Delaware-Philadelphia-Eastern Chester- Eastern Montgomery-Lower Bucks- Including the cities of New Brunswick, Trenton, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 318 AM EST Wed Dec 16 2020 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 AM EST THURSDAY... * WHAT...Heavy snow mixed with sleet expected. Total snow and sleet accumulations of 6 to 12 inches. Winds gusting as high as 40 mph. * WHERE...Portions of central and northern New Jersey and southeast Pennsylvania. * WHEN...From noon today to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions will impact the evening commute tonight and the morning commute on Thursday. Heavy snow and gusty winds could result in power outages. * ADDITIONAL DETAILS...Snow will move in from southwest to northeast this afternoon and early evening, and will be heavy at times this evening. The snow will likely mix with and change to sleet this evening, before ending as a period of snow on Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ013-162300- /O.CON.KPHI.WS.W.0001.201216T1700Z-201217T1500Z/ Western Monmouth- Including the city of Freehold 318 AM EST Wed Dec 16 2020 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 AM EST THURSDAY... * WHAT...Heavy mixed precipitation expected. Total snow and sleet accumulations of 4 to 8 inches. Winds gusting as high as 45 mph. * WHERE...Western Monmouth. * WHEN...From noon today to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the evening commute tonight and the morning commute Thursday. The heavy wet snow combined with gusty winds could bring down tree branches and result in sporadic power outages. * ADDITIONAL DETAILS...Snow will move into the area late this afternoon or early evening. The snow may become heavy at times this evening and through the overnight. There will likely be a sharp gradient in snow totals across Monmouth County due to snow mixing with or changing to sleet or rain. The highest totals will occur over the western portion of the county. Over the eastern and southeastern portion of county, lower snowfall totals are expected. In areas where precipitation changes to sleet or rain, it will then likely change back to snow before ending Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ DEZ001-NJZ016>019-162300- /O.CON.KPHI.WW.Y.0008.201216T1700Z-201217T1500Z/ New Castle-Salem-Gloucester-Camden-Northwestern Burlington- Including the cities of Wilmington, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, and Mount Holly 318 AM EST Wed Dec 16 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 10 AM EST THURSDAY... * WHAT...Wet snow expected. Total snow accumulations of 2 to 5 inches. Winds gusting as high as 40 mph. * WHERE...In New Jersey, Gloucester, Salem, Northwestern Burlington and Camden. In Delaware, New Castle. * WHEN...From noon today to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the evening commute tonight and the morning commute on Thursday. * ADDITIONAL DETAILS...Snow will move in from southwest to northeast this afternoon and early evening. The snow could become heavy at times this evening. The snow will mix with and change to sleet or rain tonight, before ending as a period of snow on Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MPS
097 WWUS41 KPHI 162018 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 318 PM EST Wed Dec 16 2020 NJZ001-007>010-PAZ054-055-060>062-101-103-105-170930- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Carbon-Monroe-Berks- Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 318 PM EST Wed Dec 16 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THURSDAY... * WHAT...Heavy snow. Additional snow accumulations of 12 to 20 inches. Winds gusting as high as 40 mph. * WHERE...Portions of northern and northwest New Jersey and east central, northeast and southeast Pennsylvania. * WHEN...Until 10 AM EST Thursday. * IMPACTS...Travel will be very difficult to impossible. The hazardous conditions will impact the evening commute tonight and the morning commute on Thursday. Heavy snow combined with gusty winds could result in power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ012-015-PAZ070-071-102-104-106-170930- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Middlesex-Mercer-Delaware-Philadelphia-Eastern Chester- Eastern Montgomery-Lower Bucks- Including the cities of New Brunswick, Trenton, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 318 PM EST Wed Dec 16 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THURSDAY... * WHAT...Heavy snow, which will likely mix with or change to sleet. Additional snow and sleet accumulations of 5 to 9 inches. Winds gusting as high as 45 mph. * WHERE...Portions of central and northern New Jersey and southeast Pennsylvania. * WHEN...Until 10 AM EST Thursday. * IMPACTS...Travel will be very difficult. The hazardous conditions will impact the evening commute tonight and the morning commute on Thursday. Heavy snow and gusty winds could result in power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ013-170930- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Western Monmouth- Including the city of Freehold 318 PM EST Wed Dec 16 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THURSDAY... * WHAT...Heavy snow, which will likely mix with or change to sleet or rain. Additional snow and sleet accumulations of 3 to 7 inches. Winds gusting as high as 55 mph. * WHERE...Western Monmouth. * WHEN...Until 10 AM EST Thursday. * IMPACTS...Travel will be very difficult. The hazardous conditions will impact the evening commute tonight and the morning commute on Thursday. Heavy snow and gusty winds could result in power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ DEZ001-NJZ016>019-170930- /O.CON.KPHI.WW.Y.0008.000000T0000Z-201217T1500Z/ New Castle-Salem-Gloucester-Camden-Northwestern Burlington- Including the cities of Wilmington, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, and Mount Holly 318 PM EST Wed Dec 16 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THURSDAY... * WHAT...Snow changing to sleet then rain. Additional snow accumulations of 2 to 4 inches inches. Winds gusting as high as 45 mph. * WHERE...In New Jersey, Gloucester, Salem, Northwestern Burlington and Camden. In Delaware, New Castle. * WHEN...Until 10 AM EST Thursday. * IMPACTS...Travel will be very difficult. The hazardous conditions will impact the evening commute tonight and the morning commute on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
014 WWUS41 KPHI 170823 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 323 AM EST Thu Dec 17 2020 NJZ001-007>010-PAZ054-055-060>062-101-103-105-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Carbon-Monroe-Berks- Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 323 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy snow. Additional snow accumulations of 4 to 6 inches. Winds gusting as high as 35 mph. * WHERE...Portions of northern and northwest New Jersey and east central, northeast and southeast Pennsylvania. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ012-015-PAZ070-071-102-104-106-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Middlesex-Mercer-Delaware-Philadelphia-Eastern Chester- Eastern Montgomery-Lower Bucks- Including the cities of New Brunswick, Trenton, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 323 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy snow. Additional snow accumulations of up 2 to 4 inches. Winds gusting as high as 35 mph. * WHERE...Portions of central and northern New Jersey and southeast Pennsylvania. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ013-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Western Monmouth- Including the city of Freehold 323 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy mixed precipitation. Additional snow accumulations of up to one inch and ice accumulations of a light glaze. Winds gusting as high as 45 mph. * WHERE...Western Monmouth. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ DEZ001-NJZ016>019-171500- /O.CON.KPHI.WW.Y.0008.000000T0000Z-201217T1500Z/ New Castle-Salem-Gloucester-Camden-Northwestern Burlington- Including the cities of Wilmington, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, and Mount Holly 323 AM EST Thu Dec 17 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Mixed precipitation. Additional snow accumulations of up to one inch and ice accumulations of a light glaze. Winds gusting as high as 35 mph. * WHERE...In New Jersey, Gloucester, Salem, Northwestern Burlington and Camden. In Delaware, New Castle. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MPS
224 WWUS41 KPHI 171011 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 511 AM EST Thu Dec 17 2020 DEZ001-NJZ016>019-171115- /O.CAN.KPHI.WW.Y.0008.000000T0000Z-201217T1500Z/ New Castle-Salem-Gloucester-Camden-Northwestern Burlington- Including the cities of Wilmington, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, and Mount Holly 511 AM EST Thu Dec 17 2020 ...WINTER WEATHER ADVISORY IS CANCELLED... Snow continues to taper off, on little, if any, additional snow accumulation is expected. Temperatures have dropped below freezing and into the 20s. Any melted snow or rain may freeze on untreated surfaces, resulting in slick and icy driving conditions. $$ NJZ001-007>010-PAZ054-055-060>062-101-103-105-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Carbon-Monroe-Berks- Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 511 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy snow. Additional snow accumulations of 2 to 4 inches. Winds gusting as high as 35 mph. * WHERE...Portions of northern and northwest New Jersey and east central, northeast and southeast Pennsylvania. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ012-015-PAZ070-071-102-104-106-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Middlesex-Mercer-Delaware-Philadelphia-Eastern Chester- Eastern Montgomery-Lower Bucks- Including the cities of New Brunswick, Trenton, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 511 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy snow. Additional snow accumulations of 1 to 3 inches. Winds gusting as high as 35 mph. * WHERE...Portions of central and northern New Jersey and southeast Pennsylvania. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ013-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Western Monmouth- Including the city of Freehold 511 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy mixed precipitation. Additional snow accumulations of up to one inch and ice accumulations of a light glaze. Winds gusting as high as 40 mph. * WHERE...Western Monmouth. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MPS
403 WWUS41 KPHI 171014 CCA WSWPHI URGENT - WINTER WEATHER MESSAGE...CORRECTED National Weather Service Mount Holly NJ 514 AM EST Thu Dec 17 2020 DEZ001-NJZ016>019-171115- /O.COR.KPHI.WW.Y.0008.000000T0000Z-201217T1500Z/ New Castle-Salem-Gloucester-Camden-Northwestern Burlington- Including the cities of Wilmington, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, and Mount Holly 514 AM EST Thu Dec 17 2020 ...WINTER WEATHER ADVISORY IS CANCELLED... Snow continues to taper off, and little, if any, additional snow accumulation is expected. Temperatures have dropped below freezing and into the 20s. Any melted snow or rain may freeze on untreated surfaces, resulting in slick and icy driving conditions. $$ NJZ001-007>010-PAZ054-055-060>062-101-103-105-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Carbon-Monroe-Berks- Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 514 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy snow. Additional snow accumulations of 2 to 4 inches. Winds gusting as high as 35 mph. * WHERE...Portions of northern and northwest New Jersey and east central, northeast and southeast Pennsylvania. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ012-015-PAZ070-071-102-104-106-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Middlesex-Mercer-Delaware-Philadelphia-Eastern Chester- Eastern Montgomery-Lower Bucks- Including the cities of New Brunswick, Trenton, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 514 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy snow. Additional snow accumulations of 1 to 3 inches. Winds gusting as high as 35 mph. * WHERE...Portions of central and northern New Jersey and southeast Pennsylvania. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ013-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Western Monmouth- Including the city of Freehold 514 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy mixed precipitation. Additional snow accumulations of up to one inch and ice accumulations of a light glaze. Winds gusting as high as 40 mph. * WHERE...Western Monmouth. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MPS
What forecasters said that day
The local office's own words before this winter weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this winter weather advisory went out at Dec 15, 9:46 AM EST, 5 hours 43 minutes earlier.
Area forecast discussion, Dec 15, 9:46 AM EST, 5 hours 43 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
946 AM EST Tue Dec 15 2020
.SYNOPSIS...
High pressure briefly builds through the region today. A
coastal low will then impact the region Wednesday through
Wednesday night before departing on Thursday. High pressure
returns for the end of the week. Weak low pressure may impact
the region early in the new week.
&&
.NEAR TERM /THROUGH TONIGHT/...
For the mid morning update: no significant changes as the
tranquil forecast for today looks to be on track. High pressure
builds over SE Canada. The building high to our NW will result
in a cool and dry northwest flow prevailing over our area. 925mb
temps will generally run < -5C so despite good mixing most
locations will struggle to reach 40 degrees.
Surprisingly, given the major storm system which will be
approaching in 12-24 hours, the overnight period will also be
quiet as the Canadian High remains dominant. Overnight lows will
be somewhat tricky as the very dry airmass (dewpoints likely
dropping to the teens and single digits over the northern
half-2/3rds of our CWA) and slackening winds may allow for a
shot of efficient radiational cooling within a few hours of
sunset. Assuming the cloud cover remains mostly cirrus as
guidance suggests, current overnight lows (generally in the low
to mid 20s) may be too conservative in spots. Some lower clouds
may start making their way into southern portions of the
forecast area late in the overnight period, but in general
expect these to mostly hold off until the daytime on Wednesday.
&&
.SHORT TERM /WEDNESDAY THROUGH THURSDAY/...
The coastal storm remains on track to impact the region
Wednesday through Wednesday night. Latest trends have the storm
arriving a bit slower, with the main impacts from the storm
coming Wednesday night.
Strong, 1040 mb blocking high will be centered over eastern
Canada on Wednesday as slowly drift a bit to the north and east
Wednesday night and remains there into Thursday. A cold airmass
remains over much of the area, with below freezing temperatures
north and west of the I-95 corridor during the day Wednesday and
into Wednesday night.
Precip develops Wednesday morning, generally as snow to the
west, a mix along the I-95 corridor, and rain over southern and
eastern zones. A quick 3-5 or 4-6 inches of snow will fall
during the day Wednesday over the northern and western zones.
Low pressure over the Southeast U.S. lifts north along the
coast during the day Wednesday and intensifies Wednesday evening
as it moves towards Delmarva as strong H5 shortwave energy
moves in from the west. A 60-70 kt LLJ will pass through the
region Wednesday night as the low lifts through Delaware, and
then tracks east of New Jersey before lifting out to sea on
Thursday.
There remain some key differences among the models. The GFS has
the low farther south and east Wednesday night compared to the
ECMWF, and the NAM is fairly similar to the ECMWF. Also of note,
some mid-level WAA will lift north into the region, and this
will result in snow mixing with a wintry mix of sleet, rain, and
freezing rain. The issue is determining where that mixing line
will set up. For far interior portions, it seems pretty clear
cut that precip will be all snow for the southern Poconos,
northern New Jersey, the Lehigh Valley, and down towards
Philadelphia. The rain/snow line looks to set up right along the
I-95 corridor, where areas in central New Jersey, down to the
eastern Philly suburbs in New Jersey, down to Wilmington, where
precip during the day Wednesday will be a mix of rain and snow,
and then a wintry mix is possible through much of the evening
before changing to all snow after midnight Wednesday night. For
much of Delmarva and southeast New Jersey, precip will
generally be rain, though may end as a brief period of snow
Thursday morning.
The heaviest banding of snow will occur late Wednesday
afternoon and Wednesday evening, when in the far northern and
western zones, snowfall rates may exceed 1-2 inches per hour.
This would end up with 18-24 inches of snow total from
Wednesday afternoon through Thursday morning. Will go ahead and
convert the Winter Storm Watch to a Winter Storm Warning for
much of the southern Poconos, northern New Jersey, and the
Lehigh Valley. Will also convert the Winter Storm Watch to a
Winter Storm Warning to the next tier of counties south, to
include the western Philly suburbs, western Delaware Valley, and
down into central New Jersey. Confidence is a bit less in
snowfall totals in these areas, as there will be a bit more
mixing in areas closer to the I-95 corridor, so snow totals
could range from as low as 6-8 inches closer to I-95, and as
much as 12-18 inches some 20 miles west of the I-95 corridor. It
all depends on how far north the low will track as how far
north the warm air at 850 mb or so will get.
Will keep the Winter Storm Watch in effect for Monmouth county
as well as the New Jersey counties right along the I-95 corridor
and down towards northern Delaware. Will need another run of
models to determine just how much snow will fall in these
locations, as it appears that there will be a prolonged period
of wintry mix Wednesday evening that would cut back on snowfall
accumulations greatly. Even in the Watch area, snowfall totals
could range from 1-3 inches on the far eastern portions of the
Watch area to 6+ inches over the western portions of the Watch
area.
As mentioned, there will also be a 60-70 kt LLJ that will pass
over the area Wednesday evening. Looks like the best mixing
will occur right along the New Jersey and Delaware coasts, where
wind gusts of 45-55 mph are possible. Will hoist a High Wind
Watch for Wednesday night with this forecast package for the
coastal strip of New Jersey and Delaware. Even inland and back
into the interior, wind gusts of 35-40 mph are possible. This
would result in blizzard-like conditions, especially where snow
is heaviest. It is too soon to issue a Blizzard Warning, and
confidence is too low to warrant issuing one, but the potential
is there.
For eastern New Jersey and most of Delaware, with precip all
rain, storm total QPF will be around 2 inches. Not expecting
this to result in freshwater flooding.
Temperatures Wednesday night will drop into the teens in the
Poconos, and otherwise in the 20s to around 30.
On Thursday, the storm departs, and any lingering snow will
taper off in the morning. High pressure builds in from the west,
and skies clear out during the day. It will be a cold high
pressure, with highs only in the 30s, and the forecast highs may
end up being a couple of degrees too warm, especially in areas
where there is fresh snowfall.
&&
.LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
High pressure builds into the region with below normal
temperatures to close out the work week. Another weak area of
low pressure may impact the region early in the new week, but
there is no agreement among the models, so will keep any PoPs
capped at slight chance to low-chance.
&&
.AVIATION /15Z TUESDAY THROUGH SATURDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.
Today...VFR, with N-NW winds 5-10kts. High Confidence.
Tonight...VFR with N-NE winds around 5kts. There is a small
chance of some lower clouds moving into KACY/KMIV towards
daybreak, but generally think these hold off until Wednesday.
High confidence.
Outlook...
Wednesday through Thursday...A significant coastal storm will
impact the terminals with a variety of impacts. Generally
IFR/LIFR starting late Wednesday morning and continuing into
Thursday before slowly improving on Thursday. For KRDG/KABE:
precip will be all snow. For KPHL/KPNE/KILG/KTTN precip will be
rain and snow during the day Wednesday, then mostly snow with a
wintry mix of sleet, freezing rain, and snow possible at night.
Precip ends as snow by Thursday morning. For KACY/KMIV: precip
will mostly be rain before ending as snow Thursday morning.
Winds NE 10-20 kt with 20-30 kt gusts Wednesday and Wednesday
night, then NW 10-20 kt on Thursday. Gusts to 45 kt are possible
at KACY Wednesday evening. Significant snow accumulations are
possible I-95 and NW. High confidence in storm occurring, but
low confidence on timing of precip changes.
Thursday night through Saturday...VFR. Northerly winds mostly 5
to 15kt. High confidence.
&&
.MARINE...
SCA conditions will likely continue for a few more hours as NW winds
remain elevated, otherwise expect winds and seas to come down below
criteria by early-mid morning. Seas will start the day around 4-5ft
but should come down to 2-3ft this evening. NNW winds will shift
more NE by early Wed morning with gusts up to around 20 kts.
Outlook...
Wednesday through Thursday...A coastal low will impact the
waters with heavy precip, strong winds, and rough seas starting
late Wednesday morning and continuing into Thursday. Widespread
gales will develop on Wednesday, and then Storm Force winds are
possible Wednesday night. Will keep the Storm Watch in effect
for the coastal ocean waters and lower Delaware Bay and the Gale
Watch for upper Delaware Bay. The strongest winds will occur
late Wednesday and most of Wednesday night. By Thursday
afternoon, winds should decrease below gale force.
Thursday night through Saturday...Winds should subside below
SCA criteria early on Thursday night. However, seas could stay
elevated on the coastal waters through Saturday.
&&
.TIDES/COASTAL FLOODING...
A classic setup is anticipated on Wednesday into Thursday for a
high- impact coastal flooding event for the Atlantic coast and
Delaware Bay. As a coastal storm moves northeastward just off
our coast Wednesday night, strong high pressure in eastern
Canada will promote a long-duration tight surface pressure
gradient in the northern Mid- Atlantic and New England. We
expect a prolonged east-northeast flow with sustained winds
30-40+ kt, peaking Wednesday evening and night. Though the
timing of peak surge may not quite match the timing of high tide
on the coast, the magnitude of surge will easily exceed 2 feet,
and flow will not permit escape of water from the coast during
low tide. Additionally, astronomical tides will continue to be
high from the lingering effects of the new moon.
The combination of these conditions will likely lead to
widespread moderate to potentially even locally major flooding
on the Atlantic coast and Lower Delaware Bay for Thursday
morning's high tide. At least moderate tidal flooding is
forecast by the ETSS, ESTOFS and Stevens Institute data, lending
further confidence to the tidal forecast. Consequently Coastal
Flood Watch remains in effect for the primary high tide of
interest (Thursday morning). Don't have enough confidence at
this point to expand to the Upper De Bay/Tidal Delaware but
these sites will have to be watched as well.
In the meantime, minor flooding may occur with predecessor high
tides this morning and Wednesday morning, largely due to the
high astronomical tides (surge will be relatively low).
Confidence is not particularly high that any specific sites will
reach advisory thresholds through Tuesday evening, but will
mention this potential in the CFW and a short-fused advisory may
need to be issued based on short-term trends.
Bottom line: All interests in areas susceptible to tidal
flooding should monitor the latest forecasts and be prepared for
a significant coastal flooding event on Thursday morning.
&&
.CLIMATE...
Here are the daily snowfall records for Wednesday, Dec 16 and
Thursday, Dec 17:
Dec 16
Allentown...4.5" in 1973
Atlantic City Airport...0.8" in 2010
Philadelphia...7.1" in 1896
Wilmington...3.5" in 1896
Dec 17
Allentown...2.1" in 2013
Atlantic City Airport...0.2" in 2013
Philadelphia...7.3" in 1932
Wilmington...2.2" in 1973
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Winter Storm Warning from 10 AM Wednesday to 10 AM EST
Thursday for PAZ054-055-060>062-070-071-101>106.
NJ...Winter Storm Warning from 10 AM Wednesday to 10 AM EST
Thursday for NJZ001-007>010-012-015.
Coastal Flood Watch from Thursday morning through Thursday
afternoon for NJZ012>014-020>027.
High Wind Watch from Wednesday evening through late Wednesday
night for NJZ014-024>026.
Winter Storm Watch from Wednesday morning through Thursday
morning for NJZ013-016>019.
DE...Coastal Flood Watch from Thursday morning through Thursday
afternoon for DEZ002>004.
High Wind Watch from Wednesday evening through late Wednesday
night for DEZ004.
Winter Storm Watch from Wednesday morning through Thursday
morning for DEZ001.
MD...None.
MARINE...Storm Watch from Wednesday afternoon through Thursday morning
for ANZ450>455.
Small Craft Advisory until 10 AM EST this morning for
ANZ450>453.
Gale Watch from Wednesday afternoon through Thursday morning
for ANZ430.
Storm Watch from Wednesday afternoon through Thursday morning
for ANZ431.
&&
Synopsis...MPS
Near Term...Carr/Johnson
Short Term...MPS
Long Term...MPS
Aviation...Carr/MPS
Marine...Carr/MPS
Tides/Coastal Flooding...WFO PHI
Climate...WFO PHIHazardous weather outlook, Dec 15, 3:26 PM EST, 3 minutes before
Hazardous Weather Outlook National Weather Service Mount Holly NJ 326 PM EST Tue Dec 15 2020 NJZ001-007-008-PAZ054-055-060>062-162030- Sussex-Warren-Morris-Carbon-Monroe-Berks-Lehigh-Northampton- 326 PM EST Tue Dec 15 2020 ...WINTER STORM WARNING IN EFFECT FROM NOON WEDNESDAY TO 10 AM EST THURSDAY... This Hazardous Weather Outlook is for northern New Jersey, east central Pennsylvania and northeast Pennsylvania. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ009-010-015-PAZ101>106-162030- Hunterdon-Somerset-Mercer-Western Chester-Eastern Chester- Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks- 326 PM EST Tue Dec 15 2020 ...WINTER STORM WARNING IN EFFECT FROM NOON WEDNESDAY TO 10 AM EST THURSDAY... This Hazardous Weather Outlook is for central New Jersey, northern New Jersey, northwest New Jersey and southeast Pennsylvania. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ012-162030- Middlesex- 326 PM EST Tue Dec 15 2020 ...WINTER STORM WARNING IN EFFECT FROM NOON WEDNESDAY TO 10 AM EST THURSDAY... ...COASTAL FLOOD WARNING IN EFFECT FROM 7 AM TO 3 PM EST THURSDAY... This Hazardous Weather Outlook is for northern New Jersey. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. Coastal Flood Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ070-071-162030- Delaware-Philadelphia- 326 PM EST Tue Dec 15 2020 ...WINTER STORM WARNING IN EFFECT FROM NOON WEDNESDAY TO 10 AM EST THURSDAY... This Hazardous Weather Outlook is for southeast Pennsylvania. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ001-NJZ016>019-162030- New Castle-Salem-Gloucester-Camden-Northwestern Burlington- 326 PM EST Tue Dec 15 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON WEDNESDAY TO 10 AM EST THURSDAY... This Hazardous Weather Outlook is for northern Delaware and southern New Jersey. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Weather Advisory. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ013-162030- Western Monmouth- 326 PM EST Tue Dec 15 2020 ...WINTER STORM WARNING IN EFFECT FROM NOON WEDNESDAY TO 10 AM EST THURSDAY... ...COASTAL FLOOD WARNING IN EFFECT FROM 7 PM WEDNESDAY TO 3 PM EST THURSDAY... This Hazardous Weather Outlook is for central New Jersey. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Winter Storm Warning. Coastal Flood Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ014-025-026-162030- Eastern Monmouth-Coastal Atlantic-Coastal Ocean- 326 PM EST Tue Dec 15 2020 ...HIGH WIND WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH LATE WEDNESDAY NIGHT... ...COASTAL FLOOD WARNING IN EFFECT FROM 7 PM WEDNESDAY TO 3 PM EST THURSDAY... This Hazardous Weather Outlook is for central New Jersey and southern New Jersey. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. High Wind Watch. Coastal Flood Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ020-162030- Ocean- 326 PM EST Tue Dec 15 2020 ...COASTAL FLOOD WARNING IN EFFECT FROM 7 PM WEDNESDAY TO 3 PM EST THURSDAY... This Hazardous Weather Outlook is for southern New Jersey. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Coastal Flood Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ003-NJZ022-023-027-162030- Inland Sussex-Atlantic-Cape May-Southeastern Burlington- 326 PM EST Tue Dec 15 2020 ...COASTAL FLOOD WARNING IN EFFECT FROM 7 PM WEDNESDAY TO 3 PM EST THURSDAY... This Hazardous Weather Outlook is for southern Delaware and southern New Jersey. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Coastal Flood Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ004-NJZ024-162030- Delaware Beaches-Atlantic Coastal Cape May- 326 PM EST Tue Dec 15 2020 ...HIGH WIND WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH LATE WEDNESDAY NIGHT... ...COASTAL FLOOD WARNING IN EFFECT FROM 7 PM WEDNESDAY TO 3 PM EST THURSDAY... This Hazardous Weather Outlook is for southern Delaware and southern New Jersey. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. High Wind Watch. Coastal Flood Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ002-NJZ021-162030- Kent-Cumberland- 326 PM EST Tue Dec 15 2020 ...COASTAL FLOOD WARNING IN EFFECT FROM 7 AM TO 3 PM EST THURSDAY... This Hazardous Weather Outlook is for central Delaware and southern New Jersey. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Coastal Flood Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ012-015-019-020-162030- Kent MD-Queen Annes-Talbot-Caroline- 326 PM EST Tue Dec 15 2020 This Hazardous Weather Outlook is for northeast Maryland. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. A period of rain mixing with snow and sleet is expected Wednesday night into Thursday morning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ455-162030- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 326 PM EST Tue Dec 15 2020 ...GALE WARNING IN EFFECT FROM 1 PM WEDNESDAY TO 6 AM EST THURSDAY... This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ450>454-162030- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- 326 PM EST Tue Dec 15 2020 ...STORM WARNING IN EFFECT FROM 2 PM WEDNESDAY TO 7 AM EST THURSDAY... This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Storm Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ431-162030- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 326 PM EST Tue Dec 15 2020 ...STORM WARNING IN EFFECT FROM 2 PM WEDNESDAY TO 1 AM EST THURSDAY... This Hazardous Weather Outlook is for Delaware Bay Waters. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Storm Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ430-162030- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 326 PM EST Tue Dec 15 2020 ...GALE WARNING IN EFFECT FROM 2 PM WEDNESDAY TO 6 AM EST THURSDAY... This Hazardous Weather Outlook is for Delaware Bay Waters. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures.
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 15, 3:17 AM EST | High Wind Watch | PHI | Atlantic, Cape May, Monmouth, Ocean | 16 hr |
| Dec 15, 3:18 AM EST | Winter Storm Warning | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 2 more | 51 hr |
| Dec 15, 3:19 PM EST | Gale Warning | PHI | 42 hr | |
| Dec 15, 3:19 PM EST | Storm Warning | PHI | 38 hr | |
| Dec 15, 3:27 PM EST | Coastal Flood Warning | PHI | Atlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 1 more | 45 hr |
Nearby
Winter Weather Advisories in New Jersey, 2020Winter Weather Advisories in Delaware, 2020Every winter weather advisory in 2020
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.