Alert archive / New Jersey / Areal Flood Advisories in 2020

Areal Flood Advisory 144, NWS Philadelphia/Mount Holly

August 13, 20204 counties in New Jersey; Bucks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this areal flood advisory at Aug 13, 2020, 7:47 AM EDT for 4 counties in New Jersey; Bucks County, Pennsylvania. It was in force for 118 min.

The area

The counties it named.

The facts

Issued: Aug 13, 2020, 7:47 AM EDT (11:47 UTC)
Expired: Aug 13, 2020, 9:45 AM EDT
In force: 118 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Somerset County, NJ, Bucks County, PA

The radar

The Philadelphia radar (KDIX), 62 km from the middle of the area, began a volume at 11:47 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 forecasters said that day

The local office's own words before this areal 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 areal flood advisory went out at Aug 13, 6:14 AM EDT, 1 hour 33 minutes earlier.

Area forecast discussion, Aug 13, 6:14 AM EDT, 1 hour 33 minutes before

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Hazardous weather outlook, Aug 13, 4:58 AM EDT, 2 hours 49 minutes before

Hazardous Weather Outlook
National Weather Service Mount Holly NJ
458 AM EDT Thu Aug 13 2020

NJZ001-007>010-015-PAZ054-055-060>062-103-105-140900-
Sussex-Warren-Morris-Hunterdon-Somerset-Mercer-Carbon-Monroe-Berks-
Lehigh-Northampton-Western Montgomery-Upper Bucks-
458 AM EDT Thu Aug 13 2020

This Hazardous Weather Outlook is for central New Jersey, northern
New Jersey, northwest New Jersey, east central Pennsylvania,
northeast Pennsylvania and southeast Pennsylvania.

.DAY ONE...Today and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

MDZ008-012-015-019-020-PAZ101-102-104-140900-
Cecil-Kent MD-Queen Annes-Talbot-Caroline-Western Chester-
Eastern Chester-Eastern Montgomery-
458 AM EDT Thu Aug 13 2020

...FLASH FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH
THIS EVENING...

This Hazardous Weather Outlook is for northeast Maryland and
southeast Pennsylvania.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

DEZ001>003-NJZ016>023-027-PAZ070-071-106-140900-
New Castle-Kent-Inland Sussex-Salem-Gloucester-Camden-
Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May-
Southeastern Burlington-Delaware-Philadelphia-Lower Bucks-
458 AM EDT Thu Aug 13 2020

...FLASH FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH
THIS EVENING...

This Hazardous Weather Outlook is for central Delaware, northern
Delaware, southern Delaware, southern New Jersey and southeast
Pennsylvania.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

While spotty minor coastal flooding is possible with the afternoon
and evening high tide on Saturday, minor coastal flooding is more
likely with the Sunday afternoon and evening high tide.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

NJZ012-013-140900-
Middlesex-Western Monmouth-
458 AM EDT Thu Aug 13 2020

This Hazardous Weather Outlook is for central New Jersey and
northern New Jersey.

.DAY ONE...Today and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Minor coastal flooding is possible with the Sunday afternoon and
evening high tide.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

NJZ014-140900-
Eastern Monmouth-
458 AM EDT Thu Aug 13 2020

This Hazardous Weather Outlook is for central New Jersey.

.DAY ONE...Today and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Minor coastal flooding is possible with the Sunday afternoon and
evening high tide.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

DEZ004-NJZ024>026-140900-
Delaware Beaches-Atlantic Coastal Cape May-Coastal Atlantic-
Coastal Ocean-
458 AM EDT Thu Aug 13 2020

...FLASH FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH
THIS EVENING...

This Hazardous Weather Outlook is for southern Delaware and
southern New Jersey.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

While spotty minor coastal flooding is possible with the afternoon
and evening high tide on Saturday, minor coastal flooding is more
likely with the Sunday afternoon and evening high tide.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

ANZ430-431-450>455-140900-
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-
458 AM EDT Thu Aug 13 2020

This Hazardous Weather Outlook is for Atlantic coastal waters and
Delaware Bay Waters.

.DAY ONE...Today and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

In the hours before

Local storm report, Aug 13, 7:23 AM EDT, 24 minutes before

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Local storm report, Aug 13, 7:27 AM EDT, 20 minutes before

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Local storm report, Aug 13, 7:34 AM EDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
734 AM EDT THU AUG 13 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0345 PM     FLASH FLOOD      1 WSW WOODBURY HEIGHTS  39.81N 75.16W
08/12/2020                   GLOUCESTER         NJ   DEPT OF HIGHWAYS

            FLOODING ON THE NEW JERSEY TURNPIKE SOUTH OF
            EXIT 3. ALL LANES CLOSED. TIME BASED ON
            DISPATCH REPORT.

&&

CMS

Local storm report, Aug 13, 7:38 AM EDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
738 AM EDT THU AUG 13 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0154 PM     TSTM WND DMG     2 N WINTERTHUR          39.83N 75.61W
08/12/2020                   NEW CASTLE         DE   DEPT OF HIGHWAYS

            SEVERAL TREES DOWN ON TWADDELL MILL ROAD.
            TIME ESTIMATED FROM RADAR.

&&

CMS

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 13, 3:02 AM EDT	Flash Flood Watch	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 7 more	17 hr
Aug 13, 8:37 AM EDT	Flash Flood Warning	PHI	Hunterdon, Mercer, Middlesex, Somerset	3 hr
Aug 13, 9:36 AM EDT	Areal Flood Advisory	PHI	Hunterdon, Middlesex, Morris, Somerset	114 min
Aug 13, 10:01 AM EDT	Flash Flood Warning	PHI	Middlesex, Morris, Somerset	3 hr
Aug 13, 1:06 PM EDT	Special Weather Statement	PHI	Ocean	39 min
Aug 13, 1:30 PM EDT	Special Weather Statement	PHI	Cumberland	45 min
Aug 13, 1:56 PM EDT	Areal Flood Advisory	PHI	Atlantic, Cape May, Cumberland	2 hr
Aug 13, 1:58 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Ocean	2 hr
Aug 13, 2:44 PM EDT	Areal Flood Advisory	PHI	Atlantic	2 hr
Aug 13, 3:54 PM EDT	Special Weather Statement	PHI	Cape May	36 min
Aug 13, 4:01 PM EDT	Areal Flood Advisory	PHI	Cape May	2 hr
Aug 13, 4:52 PM EDT	Flash Flood Warning	PHI	Cape May	113 min
Aug 13, 7:25 AM EDT	Areal Flood Advisory	PHI	Bucks, Montgomery	2 hr
Aug 13, 9:07 AM EDT	Flash Flood Warning	PHI	Bucks, Montgomery	3 hr
Aug 13, 3:30 PM EDT	Areal Flood Advisory	PHI	Philadelphia	3 hr
Aug 13, 3:56 PM EDT	Areal Flood Advisory	PHI	Delaware	2 hr
Aug 13, 4:45 PM EDT	Areal Flood Advisory	PHI	Chester, Montgomery	84 min
Aug 13, 11:46 AM EDT	Areal Flood Advisory	PHI	New Castle	3 hr
Aug 13, 11:56 AM EDT	Areal Flood Advisory	PHI	Kent, Sussex	3 hr
Aug 13, 12:22 PM EDT	Special Weather Statement	PHI	Sussex	38 min

Nearby

Areal Flood Advisories in New Jersey, 2020 Areal Flood Advisories in Pennsylvania, 2020 Every areal 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; radar from the NEXRAD Level II archive.