Alert archive / New Jersey / Coastal Flood Advisories in 2020
Coastal Flood Advisory 38, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this coastal flood advisory at Dec 24, 2020, 9:08 PM EST for Burlington County, Camden County, New Jersey; Bucks County, Philadelphia County, Pennsylvania. It took effect at Dec 25, 2020, 2:00 AM EST. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Dec 24, 2020, 9:08 PM EST (02:08 UTC)
- In effect from
- Dec 25, 2020, 2:00 AM EST
- Expired
- Dec 25, 2020, 11:01 AM EST
- In force
- 9 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Burlington County, NJ, Camden County, NJ, Bucks County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 48 km from the middle of the area, began a volume at 02:07 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, 2.1 hours before the alert went out and 202 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
- 784 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 682 m²/s²
- 0-3 km storm-relative helicity
- 727 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this coastal flood 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 coastal flood advisory went out at Dec 24, 6:32 PM EST, 2 hours 36 minutes earlier.
Area forecast discussion, Dec 24, 6:32 PM EST, 2 hours 36 minutes before
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</html>Hazardous weather outlook, Dec 24, 3:41 PM EST, 5 hours 27 minutes before
Hazardous Weather Outlook National Weather Service Mount Holly NJ 341 PM EST Thu Dec 24 2020 DEZ001-NJZ001-007>010-012-015-PAZ054-055-060>062-070-071-101>106- 252100- New Castle-Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-Mercer- Carbon-Monroe-Berks-Lehigh-Northampton-Delaware-Philadelphia- Western Chester-Eastern Chester-Western Montgomery- Eastern Montgomery-Upper Bucks-Lower Bucks- 341 PM EST Thu Dec 24 2020 ...FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING... ...WIND ADVISORY IN EFFECT UNTIL 7 AM EST FRIDAY... This Hazardous Weather Outlook is for northern Delaware, central New Jersey, northern New Jersey, northwest New Jersey, east central Pennsylvania, northeast Pennsylvania and southeast Pennsylvania. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Wind Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Wind Advisory. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ002-NJZ016>019-021-252100- Kent-Salem-Gloucester-Camden-Northwestern Burlington-Cumberland- 341 PM EST Thu Dec 24 2020 ...WIND ADVISORY IN EFFECT UNTIL 7 AM EST FRIDAY... This Hazardous Weather Outlook is for central Delaware and southern New Jersey. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Wind Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Wind Advisory. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ012-015-019-020-252100- Kent MD-Queen Annes-Talbot-Caroline- 341 PM EST Thu Dec 24 2020 ...WIND ADVISORY IN EFFECT UNTIL 7 AM EST FRIDAY... This Hazardous Weather Outlook is for northeast Maryland. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Wind Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Wind Advisory. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ003-004-NJZ013-014-020-022>027-252100- Inland Sussex-Delaware Beaches-Western Monmouth-Eastern Monmouth- Ocean-Atlantic-Cape May-Atlantic Coastal Cape May-Coastal Atlantic- Coastal Ocean-Southeastern Burlington- 341 PM EST Thu Dec 24 2020 ...HIGH WIND WARNING IN EFFECT UNTIL 7 AM EST FRIDAY... This Hazardous Weather Outlook is for southern Delaware, central New Jersey and southern New Jersey. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. High Wind Warning. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. High Wind Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ430-431-450>455-252100- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 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- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 341 PM EST Thu Dec 24 2020 ...STORM WARNING IN EFFECT UNTIL 7 AM EST FRIDAY... This Hazardous Weather Outlook is for Atlantic coastal waters and Delaware Bay Waters. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Storm Warning. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. 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. MPS
In the hours before
Local storm report, Dec 24, 8:42 PM EST, 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
842 PM EST THU DEC 24 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0837 PM HEAVY RAIN NEW CASTLE 39.66N 75.57W
12/24/2020 M1.25 INCH NEW CASTLE DE TRAINED SPOTTER
&&
SFJThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 24, 8:39 PM EST | Areal Flood Advisory | PHI | Cumberland, Gloucester, Salem | 6 hr |
| Dec 24, 9:16 PM EST | Areal Flood Advisory | PHI | Hunterdon, Warren | 3 hr |
| Dec 24, 9:38 PM EST | Areal Flood Warning | PHI | Camden | 14 hr |
| Dec 24, 11:10 PM EST | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester, Salem | 4 hr |
| Dec 24, 11:48 PM EST | Areal Flood Warning | PHI | Hunterdon, Mercer, Morris, Somerset, Warren | 15 hr |
| Dec 25, 12:00 AM EST | Areal Flood Warning | PHI | Middlesex, Somerset | 6 hr |
| Dec 25, 12:03 AM EST | Coastal Flood Statement | PHI | Ocean | 12 hr |
| Dec 25, 1:37 AM EST | Areal Flood Advisory | PHI | Morris, Sussex, Warren | 10 hr |
| Dec 25, 1:56 AM EST | Areal Flood Warning | PHI | Burlington, Camden | 7 hr |
| Dec 25, 2:05 AM EST | River Flood Warning | PHI | Hunterdon, Somerset | 4 hr |
| Dec 25, 3:22 AM EST | Gale Warning | PHI | 6 hr | |
| Dec 25, 3:22 AM EST | Small Craft Advisory | PHI | 51 hr | |
| Dec 25, 5:43 AM EST | Areal Flood Advisory | PHI | Mercer, Middlesex, Somerset | 3 hr |
| Dec 25, 7:25 AM EST | River Flood Warning | PHI | Morris, Passaic | 37 hr |
| Dec 25, 11:27 AM EST | Areal Flood Warning | PHI | Sussex, Warren | 16 hr |
| Dec 25, 12:17 PM EST | River Flood Warning | PHI | Middlesex, Somerset | 9 hr |
| Dec 25, 12:53 PM EST | Coastal Flood Statement | PHI | Burlington, Ocean | 4 hr |
| Dec 25, 2:11 PM EST | River Flood Warning | PHI | Middlesex, Somerset | 7 hr |
| Dec 25, 2:12 PM EST | River Flood Warning | PHI | Somerset | 20 hr |
| Dec 25, 2:26 PM EST | River Flood Warning | PHI | Hunterdon, Somerset | 3 hr |
| Dec 25, 6:25 PM EST | River Flood Warning | PHI | Morris | 21 hr |
| Dec 24, 8:47 PM EST | Areal Flood Advisory | PHI | Chester, Delaware, Montgomery, Philadelphia | 6 hr |
| Dec 24, 10:09 PM EST | Areal Flood Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 6 hr |
| Dec 24, 10:21 PM EST | Areal Flood Warning | PHI | Bucks | 14 hr |
| Dec 24, 10:30 PM EST | River Flood Warning | PHI | Delaware | 10 hr |
| Dec 24, 11:26 PM EST | River Flood Warning | PHI | Chester | 13 hr |
| Dec 24, 11:54 PM EST | Areal Flood Warning | PHI | Lehigh, Monroe, Northampton | 12 hr |
| Dec 25, 12:36 AM EST | River Flood Warning | PHI | Montgomery | 13 hr |
| Dec 25, 12:53 AM EST | Areal Flood Warning | PHI | Chester | 6 hr |
| Dec 25, 12:59 AM EST | River Flood Warning | PHI | Chester, Montgomery, Philadelphia | 21 hr |
| Dec 25, 2:28 AM EST | River Flood Warning | PHI | Bucks | 15 hr |
| Dec 25, 3:29 AM EST | Areal Flood Warning | PHI | Berks | 6 hr |
| Dec 25, 3:33 AM EST | River Flood Warning | PHI | Chester, Delaware | 17 hr |
| Dec 25, 4:00 AM EST | River Flood Warning | PHI | Lehigh, Northampton | 16 hr |
| Dec 25, 4:31 AM EST | Areal Flood Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 7 hr |
| Dec 25, 4:53 AM EST | River Flood Warning | PHI | Berks, Montgomery | 9 hr |
| Dec 25, 6:32 AM EST | River Flood Warning | PHI | Montgomery, Philadelphia | 7 hr |
| Dec 25, 7:28 AM EST | River Flood Warning | PHI | Monroe | 10 hr |
| Dec 25, 12:13 PM EST | Areal Flood Warning | PHI | Carbon, Monroe | 9 hr |
| Dec 24, 10:52 PM EST | River Flood Warning | PHI | New Castle | 7 hr |
| Dec 25, 12:08 AM EST | River Flood Warning | PHI | New Castle | 7 hr |
| Dec 25, 1:28 AM EST | River Flood Warning | PHI | New Castle | 8 hr |
Nearby
Coastal Flood Advisories in New Jersey, 2020Coastal Flood Advisories in Pennsylvania, 2020Every coastal flood 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.