Alert archive / New Jersey / Dense Fog Advisories in 2021
Dense Fog Advisory 2, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this dense fog advisory at Mar 25, 2021, 8:49 PM EDT for 4 counties in New Jersey. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Mar 25, 2021, 8:49 PM EDT (00:49 UTC)
- Expired
- Mar 26, 2021, 4:46 AM EDT
- In force
- 8 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Atlantic County, NJ, Cape May County, NJ, Monmouth County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 30 km from the middle of the area, began a volume at 00:53 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 0.8 hours before the alert went out and 190 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
- 1254 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
293 WWUS71 KPHI 260049 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 849 PM EDT Thu Mar 25 2021 NJZ014-024>026-261400- /O.NEW.KPHI.FG.Y.0002.210326T0049Z-210326T1000Z/ /O.CON.KPHI.WI.Y.0006.210326T1600Z-210326T2300Z/ Eastern Monmouth-Atlantic Coastal Cape May-Coastal Atlantic- Coastal Ocean- Including the cities of Sandy Hook, Ocean City, Atlantic City, and Long Beach Island 849 PM EDT Thu Mar 25 2021 ...DENSE FOG ADVISORY IN EFFECT UNTIL 6 AM EDT FRIDAY... ...WIND ADVISORY REMAINS IN EFFECT FROM NOON TO 7 PM EDT FRIDAY... * WHAT...For the Dense Fog Advisory, visibility one to two miles in dense fog. For the Wind Advisory, southwest winds 20 to 25 mph with gusts up to 45 mph expected. * WHERE...Eastern Monmouth, Atlantic Coastal Cape May, Coastal Atlantic and Coastal Ocean. * WHEN...For the Dense Fog Advisory, until 6 AM EDT Friday. For the Wind Advisory, from noon to 7 PM EDT Friday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Hazardous driving conditions due to low visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ DEZ001>004-MDZ012-015-019-020-NJZ001-007>010-012-013-015>023-027- PAZ054-055-060>062-070-071-101>106-261400- /O.CON.KPHI.WI.Y.0006.210326T1600Z-210326T2300Z/ New Castle-Kent-Inland Sussex-Delaware Beaches-Kent MD- Queen Annes-Talbot-Caroline-Sussex-Warren-Morris-Hunterdon- Somerset-Middlesex-Western Monmouth-Mercer-Salem-Gloucester- Camden-Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May- Southeastern Burlington-Carbon-Monroe-Berks-Lehigh-Northampton- Delaware-Philadelphia-Western Chester-Eastern Chester- Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks- Including the cities of Wilmington, Dover, Georgetown, Rehoboth Beach, Chestertown, Centreville, Easton, Denton, Newton, Washington, Morristown, Flemington, Somerville, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Cape May Court House, Wharton State Forest, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 849 PM EDT Thu Mar 25 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM NOON TO 7 PM EDT FRIDAY... * WHAT...West winds 20 to 25 mph with gusts up to 50 mph expected. * WHERE...Delaware, Northeastern Maryland, Southeastern Pennsylvania, and much of New Jersey. * WHEN...From noon to 7 PM EDT Friday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
1 follow-up statement
230 WWUS71 KPHI 260846 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 446 AM EDT Fri Mar 26 2021 NJZ014-024>026-262300- /O.CAN.KPHI.FG.Y.0002.000000T0000Z-210326T1000Z/ /O.CON.KPHI.WI.Y.0006.210326T1600Z-210326T2300Z/ Eastern Monmouth-Atlantic Coastal Cape May-Coastal Atlantic- Coastal Ocean- Including the cities of Sandy Hook, Ocean City, Atlantic City, and Long Beach Island 446 AM EDT Fri Mar 26 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS EVENING... ...DENSE FOG ADVISORY IS CANCELLED... * WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...The Atlantic coast of New Jersey. * WHEN...From noon today to 7 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down, and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ DEZ001>004-MDZ012-015-019-020-NJZ001-007>010-012-013-015>023-027- PAZ054-055-060>062-070-071-101>106-262300- /O.CON.KPHI.WI.Y.0006.210326T1600Z-210326T2300Z/ New Castle-Kent-Inland Sussex-Delaware Beaches-Kent MD- Queen Annes-Talbot-Caroline-Sussex-Warren-Morris-Hunterdon- Somerset-Middlesex-Western Monmouth-Mercer-Salem-Gloucester- Camden-Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May- Southeastern Burlington-Carbon-Monroe-Berks-Lehigh-Northampton- Delaware-Philadelphia-Western Chester-Eastern Chester- Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks- Including the cities of Wilmington, Dover, Georgetown, Rehoboth Beach, Chestertown, Centreville, Easton, Denton, Newton, Washington, Morristown, Flemington, Somerville, New Brunswick, Freehold, Trenton, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Jackson, Millville, Hammonton, Cape May Court House, Wharton State Forest, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 446 AM EDT Fri Mar 26 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS EVENING... * WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...New Jersey, eastern and southeastern Pennsylvania, Delaware, and the Eastern Shore of Maryland. * WHEN...From noon today to 7 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down, and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CMS
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 26, 11:15 AM EDT | Gale Warning | PHI | 8 hr |
Nearby
Dense Fog Advisories in New Jersey, 2021Every dense fog advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.