Alert archive / New Jersey / Areal Flood Advisories in 2020

Areal Flood Advisory 114, NWS Philadelphia/Mount Holly

August 2, 20205 counties in New Jersey; Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this areal flood advisory at Aug 2, 2020, 8:46 AM EDT for 5 counties in New Jersey; Northampton County, Pennsylvania. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Aug 2, 2020, 8:46 AM EDT (12:46 UTC)
Expired
Aug 2, 2020, 11:32 AM EDT
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 101 km from the middle of the area, began a volume at 12:47 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 2, 7:57 AM EDT, 49 minutes earlier.

Area forecast discussion, Aug 2, 7:57 AM EDT, 49 minutes before
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Hazardous weather outlook, Aug 2, 4:34 AM EDT, 4 hours 12 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
434 AM EDT Sun Aug 2 2020

NJZ001-007>009-PAZ054-055-060>062-101-103-105-030845-
Sussex-Warren-Morris-Hunterdon-Carbon-Monroe-Berks-Lehigh-
Northampton-Western Chester-Western Montgomery-Upper Bucks-
434 AM EDT Sun Aug 2 2020

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

.DAY ONE...Today and tonight.

Isolated to scattered thunderstorms are possible this afternoon and
this evening. Some storms may be severe with a primary threat of
damaging winds.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Additional thunderstorms, some strong to severe, are possible Monday
afternoon and evening.

Heavy rainfall is also possible from Monday night into Tuesday night
as Tropical Storm Isaias approaches. This may result in flash
flooding and potentially river and stream flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather to the NWS while following all local, state,
and CDC guidelines.

NJZ010-030845-
Somerset-
434 AM EDT Sun Aug 2 2020

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for northern 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.

   Heat Advisory.

Isolated to scattered thunderstorms are possible this afternoon and
this evening. Some storms may be severe with a primary threat of
damaging winds.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Additional thunderstorms, some strong to severe, are possible Monday
afternoon and evening.

Heavy rainfall is also possible from Monday night into Tuesday night
as Tropical Storm Isaias approaches. This may result in flash
flooding and potentially river and stream flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather to the NWS while following all local, state,
and CDC guidelines.

DEZ002-003-MDZ008-012-015-019-020-NJZ021>023-030845-
Kent-Inland Sussex-Cecil-Kent MD-Queen Annes-Talbot-Caroline-
Cumberland-Atlantic-Cape May-
434 AM EDT Sun Aug 2 2020

This Hazardous Weather Outlook is for central Delaware, southern
Delaware, northeast Maryland and southern New Jersey.

.DAY ONE...Today and tonight.

Isolated to scattered thunderstorms are possible this afternoon and
this evening. Some storms may be severe with a primary threat of
damaging winds.

Heat indices are forecast to be around 100 to 105 on Sunday
afternoon.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Additional thunderstorms, some strong to severe, are possible Monday
afternoon and evening.

Heavy rainfall is also possible from Monday night into Tuesday night
as Tropical Storm Isaias approaches. This may result in flash
flooding and potentially river and stream flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather to the NWS while following all local, state,
and CDC guidelines.

DEZ001-NJZ012-013-015>020-027-PAZ070-071-102-104-106-030845-
New Castle-Middlesex-Western Monmouth-Mercer-Salem-Gloucester-Camden-
Northwestern Burlington-Ocean-Southeastern Burlington-Delaware-
Philadelphia-Eastern Chester-Eastern Montgomery-Lower Bucks-
434 AM EDT Sun Aug 2 2020

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for northern Delaware, central
New Jersey, northern New Jersey, 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.

   Heat Advisory.

Isolated to scattered thunderstorms are possible this afternoon and
this evening. Some storms may be severe with a primary threat of
damaging winds.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Additional thunderstorms, some strong to severe, are possible Monday
afternoon and evening.

Heavy rainfall is also possible from Monday night into Tuesday night
as Tropical Storm Isaias approaches. This may result in flash
flooding and potentially river and stream flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather to the NWS while following all local, state,
and CDC guidelines.

DEZ004-NJZ014-024>026-030845-
Delaware Beaches-Eastern Monmouth-Atlantic Coastal Cape May-
Coastal Atlantic-Coastal Ocean-
434 AM EDT Sun Aug 2 2020

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

.DAY ONE...Today and tonight.

There is a moderate risk for the formation of dangerous rip currents
today.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

An elevated risk for rip currents is expected to continue through the
first half of this week due to the effects of Tropical Storm Isaias.

Heavy rainfall is also possible from Monday night into Tuesday night
as Tropical Storm Isaias approaches. This may result in flash
flooding and potentially river and stream flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather to the NWS while following all local, state,
and CDC guidelines.

ANZ430-431-450>455-030845-
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-
434 AM EDT Sun Aug 2 2020

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

.DAY ONE...Today and tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Strong winds and dangerous seas are possible on the coastal waters
especially from Monday night through Tuesday night as Tropical Storm
Isaias passes near or over the area.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather to the NWS while following all local, state,
and CDC guidelines.

In the hours before

Local storm report, Aug 2, 8:06 AM EDT, 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
806 AM EDT SUN AUG 2 2020

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

0740 AM     FLASH FLOOD      1 SW MAIDEN CREEK       40.44N 75.91W
08/02/2020                   BERKS              PA   PUBLIC

            HIGHWAY 222 FLOODED ACROSS THE ROAD AT THE
            DRIES RD INTERSECTION IN MAIDENCREEK.

&&

DEAL
Special weather statement, Aug 2, 8:24 AM EDT, 22 minutes before
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Special weather statement, Aug 2, 8:31 AM EDT, 15 minutes before
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Local storm report, Aug 2, 8:39 AM EDT, 7 minutes before
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Local storm report, Aug 2, 8:43 AM EDT, 3 minutes before
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Local storm report, Aug 2, 8:44 AM EDT, 2 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 7:34 AM EDTAreal Flood AdvisoryPHIHunterdon, Warren3 hr
Aug 2, 8:06 AM EDTSpecial Weather StatementPHIHunterdon24 min
Aug 2, 8:31 AM EDTSpecial Weather StatementPHIHunterdon29 min
Aug 2, 3:33 PM EDTFlash Flood WatchPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more48 hr
Aug 2, 5:04 PM EDTTropical Storm WatchPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 8 more18 hr
Aug 2, 5:14 PM EDTSpecial Weather StatementPHIWarren31 min
Aug 2, 6:29 PM EDTSpecial Weather StatementPHIWarren31 min
Aug 2, 3:32 AM EDTAreal Flood AdvisoryPHIBerks4 hr
Aug 2, 4:42 AM EDTFlash Flood WarningPHIBerks4 hr
Aug 2, 6:30 AM EDTSevere Thunderstorm WarningPHIBerks, Lehigh45 min
Aug 2, 6:37 AM EDTTornado WarningPHIBerks, Lehigh23 min
Aug 2, 6:56 AM EDTTornado WarningPHIBerks, Lehigh34 min
Aug 2, 7:13 AM EDTAreal Flood AdvisoryPHIBerks, Lehigh, Northampton3 hr
Aug 2, 7:29 AM EDTSpecial Weather StatementPHILehigh31 min
Aug 2, 7:39 AM EDTTornado WarningPHIBucks, Lehigh, Northampton36 min
Aug 2, 7:49 AM EDTAreal Flood AdvisoryPHIBerks, Carbon, Lehigh, Monroe, Northampton84 min
Aug 2, 7:54 AM EDTSpecial Weather StatementPHILehigh36 min
Aug 2, 8:24 AM EDTSpecial Weather StatementPHILehigh36 min
Aug 2, 8:28 AM EDTAreal Flood WarningPHIBerks3 hr
Aug 2, 5:51 PM EDTSpecial Weather StatementPHILehigh, Northampton39 min

Nearby

Areal Flood Advisories in New Jersey, 2020Areal Flood Advisories in Pennsylvania, 2020Every 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.