Alert archive / New Jersey / Winter Storm Warnings in 2021
Winter Storm Warning 3, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this winter storm warning at Feb 17, 2021, 3:43 PM EST for 12 counties in New Jersey; 10 counties in Pennsylvania; New Castle County, Delaware. It took effect at Feb 18, 2021, 4:00 AM EST. It was in force for 12 hr. 60 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Feb 17, 2021, 3:43 PM EST (20:43 UTC)
- In effect from
- Feb 18, 2021, 4:00 AM EST
- Expired
- Feb 18, 2021, 3:52 PM EST
- In force
- 12 hr
- Issued by
- NWS Philadelphia/Mount Holly
All 23 counties
New Castle County, DE, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Salem County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Delaware County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 73 km from the middle of the area, began a volume at 20:45 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 18, 5:33 AM EST | SNOW 2.5 | Modena, PA | SNOWFALL OCCURRED IN ONE HOUR. |
| Feb 18, 5:45 AM EST | SNOW 1.3 | Valley Forge, PA | SNOWFALL IN ONE HOUR. |
| Feb 18, 6:05 AM EST | SNOW 3 | Wayne, PA | SNOWFALL IN UNDER TWO HOURS. |
| Feb 18, 6:08 AM EST | SNOW 4 | Coatesville, PA | REPORT VIA SOCIAL MEDIA. |
| Feb 18, 6:08 AM EST | SNOW 4.5 | East Fallowfield Twp, PA | SNOWFALL IN UNDER TWO HOURS. |
| Feb 18, 6:15 AM EST | SNOW 1.7 | Lower Makefield Twp, PA | |
| Feb 18, 6:20 AM EST | SNOW 5 | Wayne, PA | SNOWFALL IN UNDER TWO HOURS. |
| Feb 18, 6:38 AM EST | SNOW 2 | Ewing, NJ | |
| Feb 18, 6:38 AM EST | SNOW 2.5 | Hamilton Twp, NJ | |
| Feb 18, 6:40 AM EST | SNOW 5.4 | King Of Prussia, PA | SNOWFALL IN ABOUT TWO HOURS. |
| Feb 18, 6:42 AM EST | SNOW 1 | New London Twp., PA | SLEET MIXING IN. |
| Feb 18, 6:46 AM EST | SNOW 3.3 | Valley Forge, PA | TWO INCHES IN THE PAST HOUR. |
| Feb 18, 6:51 AM EST | FREEZING RAIN 0.03 | New Castle County Airpo, DE | PLANAR MEASUREMENT. |
| Feb 18, 7:00 AM EST | SNOW 1.9 | Freehold Twp, NJ | |
| Feb 18, 7:00 AM EST | SNOW 2 | .3 S Trenton, NJ | |
| Feb 18, 7:00 AM EST | SNOW 2 | East Nantmeal Twp, PA | |
| Feb 18, 7:00 AM EST | SNOW 2.5 | Newtown, PA | |
| Feb 18, 7:00 AM EST | SNOW 3 | Clifton Heights, PA | REPORT VIA SOCIAL MEDIA. |
| Feb 18, 7:00 AM EST | SNOW 3.5 | 2 Ese Newtown, PA | |
| Feb 18, 7:00 AM EST | SNOW 4.6 | Hightstown, NJ | |
| Feb 18, 7:01 AM EST | SNOW 4.5 | Abington, PA | |
| Feb 18, 7:03 AM EST | SNOW 4 | Lower Makefield Twp, PA | REPORT VIA SOCIAL MEDIA. |
| Feb 18, 7:09 AM EST | SNOW 4 | Bensalem, PA | REPORT VIA SOCIAL MEDIA. |
| Feb 18, 7:09 AM EST | SNOW 5 | Fairless Hills, PA | REPORT VIA SOCIAL MEDIA. |
| Feb 18, 7:10 AM EST | SNOW 2.1 | 1 Ese Delran, NJ | |
| Feb 18, 7:17 AM EST | SNOW 2 | Pughtown, PA | |
| Feb 18, 7:23 AM EST | SNOW 2.9 | Yardville, NJ | REPORT VIA SOCIAL MEDIA. |
| Feb 18, 7:25 AM EST | SNOW 3.5 | West Chester, PA | |
| Feb 18, 7:30 AM EST | SNOW 1 | Lansdale, PA | |
| Feb 18, 7:30 AM EST | SNOW 2 | Eagleville, PA | |
| Feb 18, 7:30 AM EST | SNOW 2.9 | West Caln Twp, PA | |
| Feb 18, 7:30 AM EST | SNOW 3 | Florence, NJ | |
| Feb 18, 7:30 AM EST | SNOW 3.5 | 1 W Ambler, PA | |
| Feb 18, 7:30 AM EST | SNOW 6 | Malvern, PA | REPORT VIA SOCIAL MEDIA. |
| Feb 18, 7:30 AM EST | SNOW 6.5 | Abington, PA | MEASURED AT ABINGTON JUNIOR HIGH SCHOOL. |
| Feb 18, 7:40 AM EST | SNOW 1.5 | East Coventry Twp, PA | |
| Feb 18, 7:40 AM EST | SNOW 4 | Freehold, NJ | |
| Feb 18, 7:40 AM EST | SNOW 5 | Downington, PA | |
| Feb 18, 8:00 AM EST | SNOW 7 | Berwyn, PA | |
| Feb 18, 8:00 AM EST | SNOW 7 | Feasterville-Trevose, PA | |
| Feb 18, 8:05 AM EST | SNOW 5 | Hamilton Twp, NJ | |
| Feb 18, 8:07 AM EST | HEAVY SNOW 3 | Ewing, NJ | |
| Feb 18, 8:08 AM EST | SNOW 6 | 2 W Yardville, NJ | |
| Feb 18, 8:09 AM EST | SNOW 6 | 1 W Levittown, PA | |
| Feb 18, 8:10 AM EST | SNOW 6 | Fairless Hills, PA | |
| Feb 18, 8:12 AM EST | SNOW 6.7 | King Of Prussia, PA | CORRECTS PREVIOUS HEAVY SNOW REPORT FROM KING OF PRUSSIA. |
| Feb 18, 8:12 AM EST | HEAVY SNOW 6.7 | King Of Prussia, PA | |
| Feb 18, 8:13 AM EST | SNOW 1 | Breinigsville, PA | |
| Feb 18, 8:14 AM EST | SNOW 4 | Jenkintown, PA | |
| Feb 18, 8:15 AM EST | SNOW 2.5 | Manayunk, PA | |
| Feb 18, 8:16 AM EST | SNOW 3 | Richboro, PA | REPORT VIA SOCIAL MEDIA. |
| Feb 18, 8:19 AM EST | SNOW 5.5 | Parkesburg, PA | |
| Feb 18, 8:23 AM EST | SNOW 4 | Northeast Philadelphia, PA | |
| Feb 18, 8:27 AM EST | SNOW 2.8 | Royersford, PA | |
| Feb 18, 8:30 AM EST | SNOW 1.1 | Lincoln University, PA | |
| Feb 18, 8:30 AM EST | SNOW 1.8 | Howell, NJ | |
| Feb 18, 8:30 AM EST | SNOW 4.3 | Plymouth Meeting, PA | |
| Feb 18, 8:30 AM EST | SNOW 6.5 | Morrisville, PA | |
| Feb 18, 8:35 AM EST | SNOW 4 | Downington, PA | |
| Feb 18, 8:39 AM EST | SNOW 5 | 2 N Tinton Falls, NJ |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 8.7 hours before the alert went out and 198 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
- 1197 m above ground
- 0-6 km bulk shear
- 90 kt
- 0-1 km storm-relative helicity
- -178 m²/s²
- 0-3 km storm-relative helicity
- -11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
999 WWUS41 KPHI 172043 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 343 PM EST Wed Feb 17 2021 NJZ001-007-008-PAZ054-055-060>062-180945- /O.UPG.KPHI.WS.A.0004.210218T0900Z-210219T1800Z/ /O.NEW.KPHI.WS.W.0003.210218T0900Z-210219T1500Z/ Sussex-Warren-Morris-Carbon-Monroe-Berks-Lehigh-Northampton- Including the cities of Newton, Washington, Morristown, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, and Easton 343 PM EST Wed Feb 17 2021 ...WINTER STORM WARNING IN EFFECT FROM 4 AM THURSDAY TO 10 AM EST FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 8 inches. * WHERE...Portions of northern New Jersey and east central and northeast Pennsylvania. * WHEN...From 4 AM Thursday to 10 AM EST Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Thursday morning, Thursday evening, and Friday morning commutes. * ADDITIONAL DETAILS...Snow overspreads the area early Thursday morning and continues at varying intensity through the day and night, heaviest from late morning through the afternoon. Some sleet may mix in Thursday evening and overnight. Light snow will likely continue into the daytime hours on Friday. 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. && $$ DEZ001-NJZ009-010-012-013-015>019-PAZ070-071-101>106-180945- /O.UPG.KPHI.WS.A.0004.210218T0900Z-210219T1800Z/ /O.NEW.KPHI.WS.W.0003.210218T0900Z-210219T1500Z/ New Castle-Hunterdon-Somerset-Middlesex-Western Monmouth-Mercer- Salem-Gloucester-Camden-Northwestern Burlington-Delaware- Philadelphia-Western Chester-Eastern Chester-Western Montgomery- Eastern Montgomery-Upper Bucks-Lower Bucks- Including the cities of Wilmington, Flemington, Somerville, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 343 PM EST Wed Feb 17 2021 ...WINTER STORM WARNING IN EFFECT FROM 4 AM THURSDAY TO 10 AM EST FRIDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 4 to 6 inches and ice accumulations of a light glaze. * WHERE...Portions of central, northern, northwest and southern New Jersey, southeast Pennsylvania and northern Delaware. * WHEN...From 4 AM Thursday to 10 AM EST Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Thursday morning, Thursday evening, and Friday morning commutes. * ADDITIONAL DETAILS...Snow overspreads the area early Thursday morning and could be heavy at times in the morning and early afternoon. A change to sleet and freezing rain is expected by late afternoon or evening. Light wintry precipitation will likely continue into the daytime hours on Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MDZ012-180945- /O.UPG.KPHI.WS.A.0004.210218T0900Z-210219T1800Z/ /O.NEW.KPHI.WW.Y.0009.210218T0900Z-210219T1500Z/ Kent MD- Including the city of Chestertown 343 PM EST Wed Feb 17 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM THURSDAY TO 10 AM EST FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 2 to 4 inches and ice accumulations of up to one tenth of an inch. * WHERE...Kent MD. * WHEN...From 4 AM Thursday to 10 AM EST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Thursday morning, Thursday evening, and Friday morning commutes. * ADDITIONAL DETAILS...Snow overspreads the area early Thursday morning and could be heavy at times in the morning. A change to sleet and freezing rain is expected by afternoon. Light wintry precipitation will likely continue into the daytime hours on Friday. 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. && $$ DEZ002-MDZ015-019-020-NJZ014-020>022-025>027-180945- /O.NEW.KPHI.WW.Y.0009.210218T0900Z-210219T1500Z/ Kent-Queen Annes-Talbot-Caroline-Eastern Monmouth-Ocean- Cumberland-Atlantic-Coastal Atlantic-Coastal Ocean- Southeastern Burlington- Including the cities of Dover, Centreville, Easton, Denton, Sandy Hook, Jackson, Millville, Hammonton, Atlantic City, Long Beach Island, and Wharton State Forest 343 PM EST Wed Feb 17 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM THURSDAY TO 10 AM EST FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 1 to 3 inches and ice accumulations of up to one tenth of an inch. * WHERE...Portions of central and southern New Jersey, northeast Maryland and central Delaware. * WHEN...From 4 AM Thursday to 10 AM EST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Thursday morning, Thursday evening, and Friday morning commutes. * ADDITIONAL DETAILS...Snow overspreads the area early Thursday morning and could be heavy at times in the morning. A change to sleet and freezing rain is expected by afternoon. Light wintry precipitation will likely continue into the daytime hours on Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ DEZ003-NJZ023-180945- /O.NEW.KPHI.WW.Y.0009.210218T0900Z-210219T1500Z/ Inland Sussex-Cape May- Including the cities of Georgetown and Cape May Court House 343 PM EST Wed Feb 17 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM THURSDAY TO 10 AM EST FRIDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of up to one inch and ice accumulations of a light glaze. * WHERE...In New Jersey, Cape May. In Delaware, Inland Sussex. * WHEN...From 4 AM Thursday to 10 AM EST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Thursday morning, Thursday evening, and Friday morning commutes. * ADDITIONAL DETAILS...Snow or mixed precipitation overspreads the area early Thursday morning. A change from snow to sleet, or from sleet and freeing rain to plain rain, is expected through the day on Thursday. Light mixed precipitation will likely continue into the daytime hours on Friday. 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. && $$ CMS/PO/JEO
4 follow-up statements
191 WWUS41 KPHI 180842 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 342 AM EST Thu Feb 18 2021 NJZ001-007-008-PAZ054-055-060>062-182200- /O.CON.KPHI.WS.W.0003.210218T0900Z-210219T1500Z/ Sussex-Warren-Morris-Carbon-Monroe-Berks-Lehigh-Northampton- Including the cities of Newton, Washington, Morristown, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, and Easton 342 AM EST Thu Feb 18 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY... * WHAT...Heavy snow is expected. Total snow accumulations of 4 to 6 inches with locally higher amounts possible. * WHERE...Berks County, the Lehigh Valley and the Poconos in Pennsylvania. Also, the New Jersey counties of Sussex, Warren and Morris. * WHEN...Until 10:00 AM Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the commute times this morning, this evening and on Friday morning. * ADDITIONAL DETAILS...Snow will overspread the area early this morning and it will continue at varying intensities into Friday. The heaviest snow should occur from this morning into this afternoon. Some sleet may mix with the snow tonight. Any lingering snow on Friday is expected to be light. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep a flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for your state can be obtained by calling 5 1 1. && $$ DEZ001-NJZ009-010-012-013-015>019-PAZ070-071-101>106-182200- /O.CON.KPHI.WS.W.0003.210218T0900Z-210219T1500Z/ New Castle-Hunterdon-Somerset-Middlesex-Western Monmouth-Mercer- Salem-Gloucester-Camden-Northwestern Burlington-Delaware- Philadelphia-Western Chester-Eastern Chester-Western Montgomery- Eastern Montgomery-Upper Bucks-Lower Bucks- Including the cities of Wilmington, Flemington, Somerville, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 342 AM EST Thu Feb 18 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY... * WHAT...Heavy mixed precipitation is expected. Total snow accumulations of 4 to 6 inches with locally higher amounts possible. Also, there is the potential for a light glaze of ice. * WHERE...Northern Delaware, southeastern Pennsylvania, and southwestern and central New Jersey. * WHEN...Until 10:00 AM Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the commute times this morning, this evening and on Friday morning. * ADDITIONAL DETAILS...Snow will overspread the area early this morning. It will likely become heavy at times this morning into early this afternoon. A change to sleet and freezing rain is expected during the afternoon and evening. Light wintry precipitation will likely continue into Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep a flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for your state can be obtained by calling 5 1 1. && $$ DEZ002-MDZ012-015-019-020-NJZ014-020>022-025>027-182200- /O.CON.KPHI.WW.Y.0009.210218T0900Z-210219T1500Z/ Kent-Kent MD-Queen Annes-Talbot-Caroline-Eastern Monmouth-Ocean- Cumberland-Atlantic-Coastal Atlantic-Coastal Ocean- Southeastern Burlington- Including the cities of Dover, Chestertown, Centreville, Easton, Denton, Sandy Hook, Jackson, Millville, Hammonton, Atlantic City, Long Beach Island, and Wharton State Forest 342 AM EST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY... * WHAT...Mixed precipitation is expected. Total snow accumulations of 1 to 4 inches. Ice accumulations of up to one tenth of an inch. * WHERE...Parts of eastern Maryland, central and southern Delaware, and parts of southern New Jersey. * WHEN...Until 10:00 AM Friday. * IMPACTS...Expect slippery road conditions. The hazardous conditions will impact the commute times this morning, this evening and on Friday morning. * ADDITIONAL DETAILS...Snow will overspread the area early this morning and it will become heavy at times. A change to sleet and freezing rain is expected by afternoon. Light wintry precipitation will likely continue tonight into Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use extra caution if traveling. The latest road conditions for your state can be obtained by calling 5 1 1. && $$ DEZ003-NJZ023-182200- /O.CON.KPHI.WW.Y.0009.210218T0900Z-210219T1500Z/ Inland Sussex-Cape May- Including the cities of Georgetown and Cape May Court House 342 AM EST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY... * WHAT...Mixed precipitation is expected. Total snow accumulations of up to one inch. A light glaze of ice is possible. * WHERE...Cape May County in New Jersey, and Sussex County in Delaware. * WHEN...Until 10:00 AM Friday. * IMPACTS...Expect slippery road conditions. The hazardous conditions will impact the commute times this morning, this evening and on Friday morning. * ADDITIONAL DETAILS...Snow or mixed precipitation will overspread the area early this morning. A change from snow to sleet and freezing rain, then to rain is expected today. Light mixed precipitation will likely continue for tonight into early Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use extra caution if traveling. The latest road conditions for your state can be obtained by calling 5 1 1. && $$ Iovino
799 WWUS41 KPHI 181524 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 1024 AM EST Thu Feb 18 2021 NJZ014-190430- /O.UPG.KPHI.WW.Y.0009.000000T0000Z-210219T1500Z/ /O.EXA.KPHI.WS.W.0003.000000T0000Z-210219T1500Z/ Eastern Monmouth- Including the city of Sandy Hook 1024 AM EST Thu Feb 18 2021 ...WINTER STORM WARNING IN EFFECT UNTIL 10 AM EST FRIDAY... * WHAT...Heavy mixed precipitation. Total snow accumulations of 5 to 8 inches and ice accumulations of a light glaze. * WHERE...Eastern Monmouth. * WHEN...Until 10 AM EST Friday. * IMPACTS...Expect slippery road conditions. The hazardous conditions will impact the commute times this morning, this evening and on Friday morning. * ADDITIONAL DETAILS...Snow will overspread the area early this morning and it will become heavy at times. A change to sleet and freezing rain is expected by afternoon. Light wintry precipitation will likely continue tonight into Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ001-007-008-PAZ054-055-060>062-190430- /O.CON.KPHI.WS.W.0003.000000T0000Z-210219T1500Z/ Sussex-Warren-Morris-Carbon-Monroe-Berks-Lehigh-Northampton- Including the cities of Newton, Washington, Morristown, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, and Easton 1024 AM EST Thu Feb 18 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY... * WHAT...Heavy snow is expected. Total snow accumulations of 4 to 6 inches with locally higher amounts possible. * WHERE...Berks County, the Lehigh Valley and the Poconos in Pennsylvania. Also, the New Jersey counties of Sussex, Warren and Morris. * WHEN...Until 10:00 AM Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the commute times this morning, this evening and on Friday morning. * ADDITIONAL DETAILS...Snow will overspread the area early this morning and it will continue at varying intensities into Friday. The heaviest snow should occur from this morning into this afternoon. Some sleet may mix with the snow tonight. Any lingering snow on Friday is expected to be light. 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. && $$ DEZ001-NJZ009-010-012-013-015>019-PAZ070-071-101>106-190430- /O.CON.KPHI.WS.W.0003.000000T0000Z-210219T1500Z/ New Castle-Hunterdon-Somerset-Middlesex-Western Monmouth-Mercer- Salem-Gloucester-Camden-Northwestern Burlington-Delaware- Philadelphia-Western Chester-Eastern Chester-Western Montgomery- Eastern Montgomery-Upper Bucks-Lower Bucks- Including the cities of Wilmington, Flemington, Somerville, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 1024 AM EST Thu Feb 18 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY... * WHAT...Heavy mixed precipitation is expected. Total snow accumulations of 4 to 6 inches with locally higher amounts possible. Also, there is the potential for a light glaze of ice. * WHERE...Northern Delaware, southeastern Pennsylvania, and southwestern and central New Jersey. * WHEN...Until 10:00 AM Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the commute times this morning, this evening and on Friday morning. * ADDITIONAL DETAILS...Snow will overspread the area early this morning. It will likely become heavy at times this morning into early this afternoon. A change to sleet and freezing rain is expected during the afternoon and evening. Light wintry precipitation will likely continue into Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ DEZ002-MDZ012-015-019-020-NJZ020>022-025>027-190430- /O.CON.KPHI.WW.Y.0009.000000T0000Z-210219T1500Z/ Kent-Kent MD-Queen Annes-Talbot-Caroline-Ocean-Cumberland- Atlantic-Coastal Atlantic-Coastal Ocean-Southeastern Burlington- Including the cities of Dover, Chestertown, Centreville, Easton, Denton, Jackson, Millville, Hammonton, Atlantic City, Long Beach Island, and Wharton State Forest 1024 AM EST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY... * WHAT...Mixed precipitation is expected. Total snow accumulations of 1 to 4 inches. Ice accumulations of up to two tenths of an inch. * WHERE...Parts of eastern Maryland, central and southern Delaware, and parts of southern New Jersey. * WHEN...Until 10:00 AM Friday. * IMPACTS...Expect slippery road conditions. The hazardous conditions will impact the commute times this morning, this evening and on Friday morning. * ADDITIONAL DETAILS...Snow will overspread the area early this morning and it will become heavy at times. A change to sleet and freezing rain is expected by afternoon. Light wintry precipitation will likely continue tonight into Friday. 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. && $$ DEZ003-NJZ023-190430- /O.CON.KPHI.WW.Y.0009.000000T0000Z-210219T1500Z/ Inland Sussex-Cape May- Including the cities of Georgetown and Cape May Court House 1024 AM EST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY... * WHAT...Mixed precipitation is expected. Total snow accumulations of up to one inch. A light glaze of ice is possible. * WHERE...Cape May County in New Jersey, and Sussex County in Delaware. * WHEN...Until 10:00 AM Friday. * IMPACTS...Expect slippery road conditions. The hazardous conditions will impact the commute times this morning, this evening and on Friday morning. * ADDITIONAL DETAILS...Snow or mixed precipitation will overspread the area early this morning. A change from snow to sleet and freezing rain, then to rain is expected today. Light mixed precipitation will likely continue for tonight into early Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
945 WWUS41 KPHI 181824 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 124 PM EST Thu Feb 18 2021 NJZ001-007-008-PAZ054-055-060>062-190730- /O.CAN.KPHI.WS.W.0003.000000T0000Z-210219T1500Z/ /O.EXA.KPHI.WW.Y.0009.000000T0000Z-210219T1500Z/ Sussex-Warren-Morris-Carbon-Monroe-Berks-Lehigh-Northampton- Including the cities of Newton, Washington, Morristown, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, and Easton 124 PM EST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM EST FRIDAY... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Snow. Additional snow accumulations of 1 to 3 inches. * WHERE...Portions of northern New Jersey and east central and northeast Pennsylvania. * WHEN...Until 10 AM EST Friday. * IMPACTS...Expect slippery road conditions. The hazardous conditions will impact the commute times this evening and on Friday morning. * ADDITIONAL DETAILS...Snow, sleet, and freezing rain will come to an end this afternoon. Light sleet and freezing rain will then spread over the area this evening into Friday. 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. && $$ DEZ001-NJZ009-010-012>019-PAZ070-071-101>106-190730- /O.CON.KPHI.WS.W.0003.000000T0000Z-210219T1500Z/ New Castle-Hunterdon-Somerset-Middlesex-Western Monmouth- Eastern Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Delaware-Philadelphia-Western Chester- Eastern Chester-Western Montgomery-Eastern Montgomery-Upper Bucks- Lower Bucks- Including the cities of Wilmington, Flemington, Somerville, New Brunswick, Freehold, Sandy Hook, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 124 PM EST Thu Feb 18 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY... * WHAT...Heavy mixed precipitation is expected. Total snow accumulations of 4 to 6 inches with locally higher amounts possible. Also, there is the potential for a light glaze of ice. * WHERE...Northern Delaware, southeastern Pennsylvania, and southwestern and central New Jersey. * WHEN...Until 10:00 AM Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the commute times this evening and on Friday morning. * ADDITIONAL DETAILS...Snow, sleet, and freezing rain will come to an end this afternoon. Light sleet and freezing rain will then spread over the area this evening into Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ DEZ002-MDZ012-015-019-020-NJZ020>022-025>027-190730- /O.CON.KPHI.WW.Y.0009.000000T0000Z-210219T1500Z/ Kent-Kent MD-Queen Annes-Talbot-Caroline-Ocean-Cumberland- Atlantic-Coastal Atlantic-Coastal Ocean-Southeastern Burlington- Including the cities of Dover, Chestertown, Centreville, Easton, Denton, Jackson, Millville, Hammonton, Atlantic City, Long Beach Island, and Wharton State Forest 124 PM EST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY... * WHAT...Mixed precipitation is expected. Total snow accumulations of 1 to 4 inches. Ice accumulations of up to two tenths of an inch. * WHERE...Parts of eastern Maryland, central and southern Delaware, and parts of southern New Jersey. * WHEN...Until 10:00 AM Friday. * IMPACTS...Expect slippery road conditions. The hazardous conditions will impact the commute times this evening and on Friday morning. * ADDITIONAL DETAILS...Snow, sleet, and freezing rain will come to an end this afternoon. Light sleet and freezing rain will then spread over the area this evening into Friday. 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. && $$ DEZ003-NJZ023-190730- /O.CON.KPHI.WW.Y.0009.000000T0000Z-210219T1500Z/ Inland Sussex-Cape May- Including the cities of Georgetown and Cape May Court House 124 PM EST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST FRIDAY... * WHAT...Mixed precipitation is expected. Total snow accumulations of up to one inch. A light glaze of ice is possible. * WHERE...Cape May County in New Jersey, and Sussex County in Delaware. * WHEN...Until 10:00 AM Friday. * IMPACTS...Expect slippery road conditions. The hazardous conditions will impact the commute times this evening and on Friday morning. * ADDITIONAL DETAILS...Snow, sleet, and freezing rain will come to an end this afternoon. Light sleet and freezing rain will then spread over the area this evening into Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
694 WWUS41 KPHI 182052 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 352 PM EST Thu Feb 18 2021 PAZ101>103-191200- /O.CAN.KPHI.WS.W.0003.000000T0000Z-210219T1500Z/ /O.EXB.KPHI.WW.Y.0009.000000T0000Z-210219T2100Z/ Western Chester-Eastern Chester-Western Montgomery- Including the cities of Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, and Pottstown 352 PM EST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 PM EST FRIDAY... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Mixed precipitation. Additional snow accumulations of up to one inch and ice accumulations of up to one tenth of an inch. * WHERE...Western Chester, Eastern Chester and Western Montgomery. * WHEN...Until 4 PM EST Friday. * IMPACTS...Expect slippery road conditions. The hazardous conditions will impact the commute times this evening and on Friday morning. * ADDITIONAL DETAILS...Patchy freezing drizzle, sleet, and snow will continue through the evening hours. Snow, sleet, and rain will then increase Friday around sunrise from the southwest as the next system approaches. 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. && $$ DEZ001-NJZ009-010-012>019-PAZ070-071-104>106-191200- /O.CAN.KPHI.WS.W.0003.000000T0000Z-210219T1500Z/ /O.EXB.KPHI.WW.Y.0009.000000T0000Z-210220T0000Z/ New Castle-Hunterdon-Somerset-Middlesex-Western Monmouth- Eastern Monmouth-Mercer-Salem-Gloucester-Camden- Northwestern Burlington-Delaware-Philadelphia-Eastern Montgomery- Upper Bucks-Lower Bucks- Including the cities of Wilmington, Flemington, Somerville, New Brunswick, Freehold, Sandy Hook, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Media, Philadelphia, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 352 PM EST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 PM EST FRIDAY... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Mixed precipitation. Additional snow accumulations of 1 to 3 inches and ice accumulations of around one tenth of an inch. * WHERE...Portions of central, northern, northwest and southern New Jersey, southeast Pennsylvania and northern Delaware. * WHEN...Until 7 PM EST Friday. * IMPACTS...Expect slippery road conditions. The hazardous conditions will impact the commute times this evening and on Friday morning. * ADDITIONAL DETAILS...Patchy freezing drizzle, sleet, and snow will continue through the evening hours. Snow, sleet, and rain will then increase Friday around sunrise from the southwest as the next system approaches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ025-182200- /O.CAN.KPHI.WW.Y.0009.000000T0000Z-210219T1500Z/ Coastal Atlantic- Including the city of Atlantic City 352 PM EST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Winter precipitation has come to an end this evening with temperatures expected to remain just above freezing along Coastal Atlantic. Therefore the advisory has been cancelled. $$ PAZ054-060-061-191200- /O.EXT.KPHI.WW.Y.0009.000000T0000Z-210219T2100Z/ Carbon-Berks-Lehigh- Including the cities of Jim Thorpe, Reading, and Allentown 352 PM EST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 PM EST FRIDAY... * WHAT...Mixed precipitation is expected. Additional snow accumulations of 1 to 3 inches. Also, there is the potential for a light glaze of ice. * WHERE...Portions of northern New Jersey and east central and northeast Pennsylvania. * WHEN...Until 4 PM EST Friday. * IMPACTS...Expect slippery road conditions. The hazardous conditions will impact the commute times this evening and on Friday morning. * ADDITIONAL DETAILS...Patchy freezing drizzle, sleet, and snow will continue through the evening hours. Snow, sleet, and rain will then increase Friday around sunrise from the southwest as the next system approaches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ DEZ002-003-MDZ012-015-019-020-NJZ001-007-008-020>023-026-027- PAZ055-062-191200- /O.EXT.KPHI.WW.Y.0009.000000T0000Z-210220T0000Z/ Kent-Inland Sussex-Kent MD-Queen Annes-Talbot-Caroline-Sussex- Warren-Morris-Ocean-Cumberland-Atlantic-Cape May-Coastal Ocean- Southeastern Burlington-Monroe-Northampton- Including the cities of Dover, Georgetown, Chestertown, Centreville, Easton, Denton, Newton, Washington, Morristown, Jackson, Millville, Hammonton, Cape May Court House, Long Beach Island, Wharton State Forest, Stroudsburg, and Bethlehem 352 PM EST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 7 PM EST FRIDAY... * WHAT...Mixed precipitation is expected. Additional snow accumulations of 1 to 3 inches. Also, there is the potential for a light glaze of ice. * WHERE...Portions of northern New Jersey and east central and northeast Pennsylvania. * WHEN...Until 7 PM EST Friday. * IMPACTS...Expect slippery road conditions. The hazardous conditions will impact the commute times this evening and on Friday morning. * ADDITIONAL DETAILS...Patchy freezing drizzle, sleet, and snow will continue through the evening hours. Snow, sleet, and rain will then increase Friday around sunrise from the southwest as the next system approaches. 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. && $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 17, 3:12 PM EST | Small Craft Advisory | PHI | 4 days | |
| Feb 17, 3:43 PM EST | Winter Weather Advisory | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more | 47 hr |
Nearby
Winter Storm Warnings in New Jersey, 2021Winter Storm Warnings in Pennsylvania, 2021Winter Storm Warnings in Delaware, 2021Every winter storm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.