Alert archive / New Jersey / Areal Flood Advisories in 2020

Areal Flood Advisory 86, NWS Philadelphia/Mount Holly

July 10, 20205 counties in New Jersey

NWS Philadelphia/Mount Holly issued this areal flood advisory at Jul 10, 2020, 4:30 PM EDT for 5 counties in New Jersey. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Jul 10, 2020, 4:30 PM EDT (20:30 UTC)
Expired
Jul 10, 2020, 8:20 PM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 39 km from the middle of the area, began a volume at 20:30 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 12:00Z, 8.5 hours before the alert went out and 151 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.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2020-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 531 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2020-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
531 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
508 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Jul 10, 4:10 PM EDT, 20 minutes earlier.

Area forecast discussion, Jul 10, 4:10 PM EDT, 20 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
410 PM EDT Fri Jul 10 2020

.SYNOPSIS...
Tropical storm Fay will continue to move across eastern New Jersey
this evening before exiting to the northeast tonight and early Saturday.
Weak high pressure will be over the area Saturday morning before
a cold front crosses the region Saturday night. Another front will
cross the area Monday. High pressure will build over the area for
the middle of next week.

&&

.NEAR TERM /UNTIL 6 AM SATURDAY MORNING/...
Tropical Storm Fay was centered about 15 miles east of Ocean City,
New Jersey around 3:00 PM. The center will move northward along the
New Jersey coast into this evening, and through the New York City
metropolitan area and up into southeastern New York and southwestern
New England overnight.

The potential for heavy rain has come to an end in much of eastern
Maryland, central and southern Delaware and far southern New Jersey.
The Flash Flood Watch has been cancelled for those areas. We
continue to expect some heavy rain in the central and northern
portions of our forecast area, so the Flash Flood Watch continues
there. Widespread totals in the 1 to 4 inch range are anticipated
with locally higher amounts. The rain will continue to end gradually
from south to north during the evening and overnight hours as Fay
drifts further to the north.

Winds along parts of the New Jersey coast will continue to gust in
excess of 40 MPH into this evening. Meanwhile, the wind gusts
elsewhere in our area should range generally in the 15 to 25 MPH
range. Wind speeds will likely diminish overnight.

A decrease in cloud cover is expected overnight. However, localized
fog is possible. Low temperatures should favor the upper 60s and
lower 70s.

&&

.SHORT TERM /6 AM SATURDAY MORNING THROUGH 6 PM SATURDAY/...
Saturday looks to be a typical summertime day in our region with
scattered cumulus and the potential for afternoon showers and
thunderstorms. Highs are expected to be mainly in the upper 80s and
lower 90s with a southwest wind around 10 MPH. Conditions will
remain humid.

A mid level short wave trough is expected to approach from the west
on Saturday. Abundant low level moisture will allow mixed layer CAPE
values to rise into the 1500 to 2000 J/Kg range in the afternoon.
The instability along with the short wave should result in the
development of thunderstorms. Much of our region is under a marginal
risk for severe weather.

&&

.LONG TERM /SATURDAY NIGHT THROUGH FRIDAY/...
Tropical storm Fay will have diminished well north of the area by
the start of the long term and a following trough with a surface
cold front will be crossing the Middle Atlantic region Saturday
evening. The scattered showers and tstms will end overnight with
perhaps some patchy fog late at night.

Sunday and Sunday night generally look like fair weather across most
of the region as weak high pressure builds over the area. Some
shortwave energy north of the area may touch off a scattered shower
or tstm across the southern Poconos and perhaps as far south as the
Lehigh Valley. Confidence in these showers occuring is not great, so
we'll just keep slight chc pops in mos areas with some chc pops near
the N/W most edges of the CWA. Above normal temps with upper 80s/low
90s most areas. Dew points mostly in the mid 60s, so humid, but not
excessively so.

Unsettled summerlike conditions are expected early next week with
most days featuring some scattered showers and tstms (mostly)
during the afternoon and early evening hours. Both days will
have very warm conditions with highs 3 to 5 degrees above normal
and humidity values rather humid.

Hot and humid conditions will develop across much of the Middle
Atlantic for the middle of next week with an upper high
pressure strengthening across the Tenn/Ohio Valley areas. Highs
Wed/Thu will be mostly in the low to mid 90s with apparent temps
in the mid 90s Wed and in the 100s on Thu. It could end up
being the warmest day of the summer (Thu) if the present fcst
number hold. Dry conditions are fcst for Wed and this will last
into Thu when a few sct tstms may form during the afternoon.

&&

.AVIATION /20Z FRIDAY THROUGH WEDNESDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.

Into this evening...Mainly IFR/MVFR conditions, improving to VFR at
times. Showers with isolated thunder. The rain will be moderate to
heavy at times. Northeast to north wind 10 to 15 knots with gusts of
20 to 25 knots. Medium confidence.

Tonight...MVFR/VFR conditions. Rain showers lifting to the north of
our region. Northwest to west wind less than 10 knots. Medium
confidence.

Saturday...Mainly VFR with a chance of afternoon showers and
thunderstorms. Southwest wind around 10 knots with gusts of 15 to 20
knots. Medium to high confidence.

Outlook...

Sat night thru Tue...VFR most of the time with only a few
scattered showers and tstms mostly during the afternoon and
early evening periods. Lower CIGS/VSBYS with any tstm.

Wed...Mostly VFR.

&&

.MARINE...
Tropical Storm Fay will continue to move slowly northward along the
New Jersey coast into this evening, before lifting into southeastern
New York and southwestern New England overnight.

The Tropical Storm Warning remains in effect. Wave heights on our
ocean waters were mainly in the 6 to 10 foot range this afternoon.

As the tropical storm moves away from our region late tonight and
Saturday, conditions will improve. A south to southwest wind around
10 to 15 knots is anticipated for Saturday. Wave heights are
expected to subside slowly but they may remain around 5 to 6 feet on
our ocean waters for much of the day.

Outlook...

Seas on the ocean will continue to remain choppy Sun thru Tue with
swell conditions expected to keep seas near SCA criteria. Winds
will overall remain below SCA conditions however. Scattered
tstms Sun thru Tue with locally higher winds and seas.

Rip Currents...
Rest of today...High risk will continue.
Saturday...High risk expected.

&&

.TIDES/COASTAL FLOODING...
As Fay departs the area tonight we can expect that the tidal departures
will remain elevated with 'close to minor' tidal flooding possible
in a few areas. Right now, it doesn't appear to be widespread or
significant enough to consider any flags, but we will continue to
monitor overnight.

A southerly flow will develop across the Chesapeake Bay on
Saturday as Fay departs and a cold front approaches. This will
probably cause water levels to become higher than usual, so
we'll monitor this overnight in case any flags or statements
become necessary.

&&

.EQUIPMENT...
The NOAA Weather Radio All Hazards broadcast from Hibernia Park,
PA (WNG704) remains off the air until further notice due to damage
to the antenna during the June 3 derecho.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flash Flood Watch until midnight EDT tonight for PAZ054-055-
     061-062-105-106.
     Flash Flood Watch until 8 PM EDT this evening for PAZ060-070-
     071-101>104.
NJ...Flash Flood Watch until midnight EDT tonight for NJZ001-
     007>010-012-015.
     High Rip Current Risk until 8 PM EDT this evening for NJZ014-
     024>026.
     Flash Flood Watch until 8 PM EDT this evening for NJZ013-014-
     016>020-026-027.
     Tropical Storm Warning for NJZ012>014-020-022>027.
DE...High Rip Current Risk until 8 PM EDT this evening for DEZ004.
     Flash Flood Watch until 8 PM EDT this evening for DEZ001.
     Tropical Storm Warning for DEZ003-004.
MD...Flash Flood Watch until 8 PM EDT this evening for MDZ008.
MARINE...Tropical Storm Warning for ANZ431-450>455.
     Small Craft Advisory until 6 PM EDT this evening for ANZ430.

&&

Synopsis...O'Hara
Near Term...Iovino
Short Term...Iovino
Long Term...O'Hara
Aviation...Iovino/O'Hara
Marine...Iovino/O'Hara
Tides/Coastal Flooding...WFO PHI
Equipment...WFO PHI
Hazardous weather outlook, Jul 10, 3:44 PM EDT, 46 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
344 PM EDT Fri Jul 10 2020

DEZ001-MDZ008-NJZ016>019-PAZ060-070-071-101>104-111945-
New Castle-Cecil-Salem-Gloucester-Camden-Northwestern Burlington-
Berks-Delaware-Philadelphia-Western Chester-Eastern Chester-
Western Montgomery-Eastern Montgomery-
344 PM EDT Fri Jul 10 2020

...FLASH FLOOD WATCH IN EFFECT UNTIL 8 PM EDT THIS EVENING...

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

   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

There is a low probability for widespread hazardous weather.

.SPOTTER INFORMATION STATEMENT...

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

NJZ001-007>010-015-PAZ054-055-061-062-105-106-111945-
Sussex-Warren-Morris-Hunterdon-Somerset-Mercer-Carbon-Monroe-Lehigh-
Northampton-Upper Bucks-Lower Bucks-
344 PM EDT Fri Jul 10 2020

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

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...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.

   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

There is a low probability for widespread hazardous weather.

.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-MDZ012-015-019-020-NJZ021-111945-
Kent-Kent MD-Queen Annes-Talbot-Caroline-Cumberland-
344 PM EDT Fri Jul 10 2020

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

.DAY ONE...This afternoon and tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

There is a low probability for widespread hazardous weather.

.SPOTTER INFORMATION STATEMENT...

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

NJZ013-020-027-111945-
Western Monmouth-Ocean-Southeastern Burlington-
344 PM EDT Fri Jul 10 2020

...FLASH FLOOD WATCH IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...TROPICAL STORM WARNING IN EFFECT...

This Hazardous Weather Outlook is for 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.

   Flash Flood Watch.
   Tropical Storm Warning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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

   Tropical Storm Warning.

.SPOTTER INFORMATION STATEMENT...

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

NJZ012-111945-
Middlesex-
344 PM EDT Fri Jul 10 2020

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
...TROPICAL STORM WARNING IN EFFECT...

This Hazardous Weather Outlook is for northern 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.

   Flash Flood Watch.
   Tropical Storm Warning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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

   Tropical Storm Warning.

.SPOTTER INFORMATION STATEMENT...

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

DEZ003-NJZ022-023-111945-
Inland Sussex-Atlantic-Cape May-
344 PM EDT Fri Jul 10 2020

...TROPICAL STORM WARNING IN EFFECT...

This Hazardous Weather Outlook is for southern 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.

   Tropical Storm Warning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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

   Tropical Storm Warning.

.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.

NJZ014-026-111945-
Eastern Monmouth-Coastal Ocean-
344 PM EDT Fri Jul 10 2020

...FLASH FLOOD WATCH IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...HIGH RIP CURRENT RISK IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...TROPICAL STORM WARNING IN EFFECT...

This Hazardous Weather Outlook is for 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 Rip Current Risk.
   Flash Flood Watch.
   Tropical Storm Warning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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

   Tropical Storm Warning.

.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-NJZ024-025-111945-
Delaware Beaches-Atlantic Coastal Cape May-Coastal Atlantic-
344 PM EDT Fri Jul 10 2020

...HIGH RIP CURRENT RISK IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...TROPICAL STORM WARNING IN EFFECT...

This Hazardous Weather Outlook is for southern 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.

   High Rip Current Risk.
   Tropical Storm Warning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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

   Tropical Storm Warning.

.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.

ANZ431-450>455-111945-
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-
344 PM EDT Fri Jul 10 2020

...TROPICAL STORM WARNING IN EFFECT...

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.

   Tropical Storm Warning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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

   Tropical Storm Warning.

.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.

ANZ430-111945-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
344 PM EDT Fri Jul 10 2020

This Hazardous Weather Outlook is for Delaware Bay Waters.

.DAY ONE...This afternoon and tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

There is a low probability for widespread hazardous weather.

.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, Jul 10, 3:31 PM EDT, 59 minutes before
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Local storm report, Jul 10, 3:32 PM EDT, 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
332 PM EDT FRI JUL 10 2020

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

0331 PM     FLOOD            FRANKLIN TWP            39.60N 75.06W
07/10/2020                   GLOUCESTER         NJ   PUBLIC

            FLOODING OF ROADS NEAR STREAMS AND CREEKS.

&&
Local storm report, Jul 10, 3:33 PM EDT, 57 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
333 PM EDT FRI JUL 10 2020

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

0635 AM     FLOOD            FENWICK ISLAND          38.45N 75.05W
07/10/2020                   SUSSEX             DE   DEPT OF HIGHWAYS

            STANDING WATER ON THE ROADWAY ON ROUTE 1 AT
            ROUTE 54.

0641 AM     FLOOD            3 W LONG NECK           38.62N 75.20W
07/10/2020                   SUSSEX             DE   TRAINED SPOTTER

            FLOODING OF ROADS AND RESIDENTIAL AREAS NEAR
            LONG NECK.

0654 AM     FLASH FLOOD      BETHANY BEACH           38.54N 75.06W
07/10/2020                   SUSSEX             DE   PUBLIC

            ESTIMATED 1 TO 2.5 FEET OF WATER INUNDATING
            ROADS IN BETHANY BEACH. REPORT VIA SOCIAL
            MEDIA WITH VIDEO.

0720 AM     TROPICAL STORM   5 E LONG NECK           38.61N 75.06W
07/10/2020                   SUSSEX             DE   DEPT OF HIGHWAYS

            A DELAWARE DOT GAUGE (DEL17) MEASURED
            SUSTAINED WINDS OF 39 MPH GUSTING TO 47 MPH.
            SUSTAINED WINDS HAVE SINCE BEEN MEASURED AS
            HIGH AS 47 MPH WITH GUSTS TO 57 MPH.

0808 AM     TROPICAL STORM   1 WNW LEWES             38.79N 75.16W
07/10/2020                   SUSSEX             DE   MESONET

            WEATHERFLOW GAUGE XLEW REPORTS A SUSTAINED
            WIND OF 41 MPH WITH GUSTS AS HIGH AS 49 MPH.

0834 AM     FLASH FLOOD      1 NW WILDWOOD           38.99N 74.83W
07/10/2020                   ANZ453             NJ   LAW ENFORCEMENT

            GEORGE REDDING BRIDGE CLOSED DUE TO
            FLOODING.

0836 AM     TROPICAL STORM   1 ENE LEWES             38.78N 75.12W
07/10/2020                   SUSSEX             DE   OTHER FEDERAL

            NOS GAUGE REPORTS SUSTAINED WINDS UP TO 40
            MPH WITH UP TO 49 MPH GUSTS.

0845 AM     FLASH FLOOD      STONE HARBOR            39.05N 74.76W
07/10/2020                   CAPE MAY           NJ   PUBLIC

            SOCIAL MEDIA VIDEO OF WIDESPREAD FLOODED
            ROADS IN STONE HARBOR.

0855 AM     TROPICAL STORM   CAPE HENLOPEN           38.80N 75.09W
07/10/2020                   SUSSEX             DE   OTHER FEDERAL

            39 MPH SUSTAINED WINDS WITH GUSTS UP TO 47
            MPH AT CAPE HENLOPEN.

0908 AM     TROPICAL STORM   2 NNE STRATHMERE        39.22N 74.64W
07/10/2020                   CAPE MAY           NJ   MESONET

            WEATHERFLOW SENSOR REPORTS 44 MPH SUSTAINED
            WINDS WITH GUSTS UP TO 53 MPH.

0910 AM     FLOOD            OCEAN CITY              39.28N 74.57W
07/10/2020                   CAPE MAY           NJ   TRAINED SPOTTER

            FLOODING OF MULTIPLE STREETS REPORTED IN
            OCEAN CITY WITH 1 FOOT OF WATER IN SOME
            AREAS.

0918 AM     FLOOD            SEA ISLE CITY           39.16N 74.69W
07/10/2020                   CAPE MAY           NJ   LAW ENFORCEMENT

            SEVERAL STREETS IN SEA ISLE CITY ARE
            FLOODED.

0922 AM     FLASH FLOOD      RIO GRANDE              39.01N 74.88W
07/10/2020                   CAPE MAY           NJ   DEPT OF HIGHWAYS

            ROUTE 47 CLOSED IN BOTH DIRECTIONS NEAR US 9
            DUE TO FLOODING.

0926 AM     FLOOD            EGG HARBOR TWP          39.40N 74.63W
07/10/2020                   ATLANTIC           NJ   TRAINED SPOTTER

            FLOODED ROADS REPORTED ON TILTON RD IN EGG
            HARBOR TWP/NORTHFIELD AREA.

0935 AM     TROPICAL STORM   BRANDYWINE SHOAL LIGHT  38.99N 75.11W
07/10/2020                   ANZ431             NJ   BUOY

            42 MPH SUSTAINED WINDS WITH GUSTS UP TO 55
            MPH AT BRANDYWINE SHOAL LIGHT.

0945 AM     FLASH FLOOD      MARGATE CITY            39.32N 74.51W
07/10/2020                   ATLANTIC           NJ   EMERGENCY MNGR

            MEDIA RELAYED REPORTS OF SIGNIFICANT
            FLOODING FROM EMERGENCY MANAGEMENT IN
            MARGATE CITY. SOCIAL MEDIA PICTURES SHOW
            ABOUT 1-2 FEET OF WATER ON ROADWAYS. TIME
            ESTIMATED.

0953 AM     TROPICAL STORM   4 SE MYSTIC ISLAND      39.52N 74.32W
07/10/2020                   OCEAN              NJ   MESONET

            WEATHERFLOW SENSOR REPORTS 39 MPH SUSTAINED
            WINDS WITH GUSTS UP TO 48 MPH.

1003 AM     FLASH FLOOD      3 E HAMILTON TWP        39.46N 74.66W
07/10/2020                   ATLANTIC           NJ   DEPT OF HIGHWAYS

            EASTBOUND LANES OF US 322 CLOSED NEAR
            COLOGNE AVE DUE TO FLOODING.

1228 PM     FLASH FLOOD      POINT PLEASANT BEACH    40.09N 74.05W
07/10/2020                   OCEAN              NJ   DEPT OF HIGHWAYS

            FLOODING ON ROUTE 35 NORTH OF WASHINGTON
            AVENUE. ALL LANES CLOSED.

1243 PM     FLASH FLOOD      SEASIDE HEIGHTS         39.95N 74.07W
07/10/2020                   OCEAN              NJ   BROADCAST MEDIA

            MEDIA RELAYS REPORT OF FLOODING ON HIERING
            AVENUE IN SEASIDE HEIGHTS.

1252 PM     FLOOD            SWEDESBORO              39.75N 75.31W
07/10/2020                   GLOUCESTER         NJ   TRAINED SPOTTER

            1 TO 2 FEET OF WATER ON SOME ROADS.

1255 PM     FLASH FLOOD      1 SSW SUMMERDALE        40.02N 75.10W
07/10/2020                   PHILADELPHIA       PA   OTHER FEDERAL

            FRANKFORD CREEK EXCEEDED FLOOD STAGE OF 7
            FEET AND CRESTED ABOVE MODERATE FLOOD STAGE
            AT 8.13 FEET.

1257 PM     FLASH FLOOD      2 NNW SEABROOK FARMS    39.53N 75.24W
07/10/2020                   CUMBERLAND         NJ   DEPT OF HIGHWAYS

            FLOODING ON ROUTE 77 NEAR FRIESBURG ROAD.
            ALL LANES CLOSED.

0114 PM     FLASH FLOOD      1 WSW WANAMASSA         40.23N 74.04W
07/10/2020                   MONMOUTH           NJ   DEPT OF HIGHWAYS

            CORRECTS PREVIOUS FLASH FLOOD REPORT FROM 1
            WSW WANAMASSA. FLOODING ON ROUTE 66 EAST OF
            ROUTE 18. ALL LANES CLOSED AND DETOURED.

0131 PM     FLASH FLOOD      1 NE UPPER PROVIDENCE T 39.94N 75.38W
07/10/2020                   DELAWARE           PA   DEPT OF HIGHWAYS

            REPORTS OF A WATER RESCUE NEAR ROSETREE ROAD
            AND SANDY BANK ROAD.

0137 PM     COASTAL FLOOD    1 SE PLEASANTVILLE      39.38N 74.50W
07/10/2020                   ATLANTIC           NJ   BROADCAST MEDIA

            BLACK HORSE PIKE IN WEST ATLANTIC CITY HAS A
            CLOSED LANE ON EACH SIDE.

0137 PM     TROPICAL STORM   1 SSE COLTS NECK        40.27N 74.17W
07/10/2020                   MONMOUTH           NJ   DEPT OF HIGHWAYS

            TREE DOWN ON ROUTE 18 NORTHBOUND RAMP TO
            ROUTE 34. RAMP CLOSED.

0138 PM     FLASH FLOOD      MANTUA                  39.96N 75.18W
07/10/2020                   PHILADELPHIA       PA   DEPT OF HIGHWAYS

            I-76 WESTBOUND BETWEEN I-676 AND THE SPRING
            GARDEN STREET EXIT CLOSED DUE TO FLOODING. A
            FEW OTHER LANE RESTRICTIONS AND CLOSURES
            REPORTED AROUND THE AREA AS WELL.

0150 PM     FLASH FLOOD      1 SSE GLASSBORO         39.70N 75.11W
07/10/2020                   GLOUCESTER         NJ   DEPT OF HIGHWAYS

            FLOODING SOUTH OF US 322 ON ROUTE 47 IN
            GLASSBORO. ALL LANES CLOSED AND DETOURED.

0227 PM     FLASH FLOOD      PHILADELPHIA            40.05N 75.03W
07/10/2020                   PHILADELPHIA       PA   PUBLIC

            PENNYPACK CREEK HAS EXCEEDED ITS FLOOD STAGE
            OF 7.0 FEET.

0230 PM     FLASH FLOOD      1 NNE WENONAH           39.80N 75.14W
07/10/2020                   GLOUCESTER         NJ   PUBLIC

            GLASSBORO ROAD IN MANTUA CLOSED DUE TO
            FLOODING.

0302 PM     HEAVY RAIN       2 S MILFORD             38.88N 75.44W
07/10/2020  M5.22 INCH       SUSSEX             DE   TRAINED SPOTTER

            STORM TOTAL RAINFALL.

0316 PM     FLASH FLOOD      1 ENE SEWELL            39.77N 75.14W
07/10/2020                   GLOUCESTER         NJ   PUBLIC

            MANTUA CREEK FLOWING OVER GLASSBORO ROAD.

&&
Local storm report, Jul 10, 3:34 PM EDT, 56 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
334 PM EDT FRI JUL 10 2020

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

0333 PM     HEAVY RAIN       2 NE SOMERS POINT       39.34N 74.58W
07/10/2020  M4.43 INCH       ATLANTIC           NJ   PUBLIC

            4.43 INCHES IN LINWOOD, NJ.

&&
Local storm report, Jul 10, 3:43 PM EDT, 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
343 PM EDT FRI JUL 10 2020

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

0342 AM     HEAVY RAIN       VINELAND                39.49N 75.03W
07/10/2020  M4.20 INCH       CUMBERLAND         NJ   TRAINED SPOTTER

            STORM TOTAL SO FAR. RAIN IS STILL FALLING.

&&

STAARMANN
Local storm report, Jul 10, 3:54 PM EDT, 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
354 PM EDT FRI JUL 10 2020

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

0248 PM     FLASH FLOOD      1 SW TROOPER            40.14N 75.41W
07/10/2020                   MONTGOMERY         PA   TRAINED SPOTTER

            FLOODING REPORTED ALONG A FEW ROAD CROSSINGS
            OF MINE RUN INCLUDING PARK AVE AND CRAWFORD
            ROAD.

&&

STAARMANN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 6:48 AM EDTSpecial Marine WarningPHI57 min
Jul 10, 7:11 AM EDTSpecial Marine WarningPHI94 min
Jul 10, 7:42 AM EDTSpecial Marine WarningPHI33 min
Jul 10, 8:20 AM EDTFlash Flood Warning Considerable damage threatPHICape May4 hr
Jul 10, 8:34 AM EDTSpecial Marine WarningPHI30 min
Jul 10, 9:01 AM EDTFlash Flood WarningPHIAtlantic, Cape May3 hr
Jul 10, 9:13 AM EDTSpecial Marine WarningPHI21 min
Jul 10, 9:27 AM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 1 more4 hr
Jul 10, 10:31 AM EDTFlash Flood WarningPHIAtlantic, Burlington, Ocean4 hr
Jul 10, 10:35 AM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Gloucester, Ocean4 hr
Jul 10, 11:02 AM EDTAreal Flood AdvisoryPHICamden, Gloucester, Salem4 hr
Jul 10, 11:08 AM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Mercer, Monmouth, Ocean4 hr
Jul 10, 12:35 PM EDTAreal Flood AdvisoryPHIMercer, Middlesex, Monmouth, Ocean, Somerset3 hr
Jul 10, 12:49 PM EDTFlash Flood WarningPHIMercer, Middlesex, Monmouth, Ocean, Somerset4 hr
Jul 10, 12:56 PM EDTFlash Flood WarningPHIBurlington, Camden, Cumberland, Gloucester, Salem4 hr
Jul 10, 1:15 PM EDTFlash Flood WarningPHIMiddlesex, Monmouth, Somerset4 hr
Jul 10, 1:41 PM EDTAreal Flood AdvisoryPHIHunterdon, Mercer, Somerset4 hr
Jul 10, 2:08 PM EDTAreal Flood AdvisoryPHIMorris, Somerset4 hr
Jul 10, 3:12 PM EDTAreal Flood AdvisoryPHISussex, Warren4 hr
Jul 10, 4:48 PM EDTAreal Flood WarningPHIBurlington, Camden, Cumberland, Gloucester, Salem4 hr
Jul 10, 5:39 PM EDTAreal Flood AdvisoryPHIHunterdon, Mercer, Somerset4 hr
Jul 10, 3:25 PM EDTAreal Flood AdvisoryPHIChester4 hr
Jul 10, 4:05 PM EDTRiver Flood WarningPHIDelaware4 hr
Jul 10, 6:34 AM EDTFlash Flood WarningPHISussex6 hr
Jul 10, 9:21 AM EDTAreal Flood AdvisoryPHIKent, New Castle, Sussex8 hr
Jul 10, 12:22 PM EDTAreal Flood WarningPHISussex3 hr
Jul 10, 3:38 PM EDTRiver Flood WarningPHINew Castle4 hr

Nearby

Areal Flood Advisories in New Jersey, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.