Alert archive / New Jersey / River Flood Warnings in 2023

River Flood Warning 56, NWS Philadelphia/Mount Holly

December 18, 2023Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Dec 18, 2023, 6:45 AM EST for Somerset County, New Jersey. It took effect at Dec 18, 2023, 7:54 AM EST. It was in force for 20 hr.

The area

The outline as issued.

The facts

Issued
Dec 18, 2023, 6:45 AM EST (11:45 UTC)
In effect from
Dec 18, 2023, 7:54 AM EST
Expired
Dec 19, 2023, 3:24 AM EST
In force
20 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
Minor

County Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 76 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.

The river

Written for the forecast point North Branch Raritan River near Raritan (RRTN4). The gauge peaked at 13.54 ft at Dec 18, 2023, 2:00 PM EST.

actionminormoderatemajor5101512/1812/1912/20
Action stage
8 ft
Minor stage
10 ft
Moderate stage
12 ft
Major stage
15 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01400000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

242 
WGUS41 KPHI 181145
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
645 AM EST Mon Dec 18 2023

...The National Weather Service in Mount Holly NJ has issued a Flood 
Warning for the following rivers in New Jersey...

  North Branch Raritan River At Raritan affecting Somerset County.



For the Raritan River...including Raritan...Minor flooding is 
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Additional information is available at www.weather.gov/phi.

The next statement will be issued this evening at 645 PM EST.

&&

NJC035-182345-
/O.NEW.KPHI.FL.W.0056.231218T1254Z-231219T0600Z/
/RRTN4.1.ER.231218T1254Z.231218T1800Z.231219T0000Z.NO/
645 AM EST Mon Dec 18 2023

...FLOOD WARNING IN EFFECT UNTIL JUST AFTER MIDNIGHT TONIGHT...

* WHAT...Minor flooding is forecast.

* WHERE...North Branch Raritan River at Raritan.

* WHEN...Until just after midnight tonight.

* IMPACTS...At 7.0 feet, Minor flooding begins upstream on Black 
  River Road.
  At 10.0 feet, Flooding occurs along Old York Road and in North 
  Branch Village.

* ADDITIONAL DETAILS...
  - At 6:30 AM EST Monday the stage was 9.4 feet.
  - Forecast...The river is expected to rise above flood stage
    this morning to a crest of 11.7 feet this afternoon. It will
    then fall below flood stage this evening.
  - Flood stage is 10.0 feet.
  - Flood History...This crest compares to a previous crest of
    11.7 feet on 02/03/1982.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (7 am)        Crest
Location        Stg   Stg Day/Time    Tue  Wed        Stg Time Date

North Branch Rar
Raritan         10.0  9.4  Mon 6 am   5.0  3.8        11.7 1pm 12/18


&&

LAT...LON 4063 7470 4062 7463 4058 7464 4054 7471


$$

Kruzdlo
2 follow-up statements
694 
WGUS41 KPHI 181311
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
811 AM EST Mon Dec 18 2023

...Forecast flooding changed from Minor to Moderate severity and 
increased in duration for the following rivers in New Jersey...

  North Branch Raritan River At Raritan affecting Somerset County.



For the Raritan River...including Stanton, Raritan, Manville, Bound 
Brook...Moderate flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Additional information is available at www.weather.gov/phi.

The next statement will be issued this evening at 815 PM EST.

&&

NJC035-190115-
/O.EXT.KPHI.FL.W.0056.000000T0000Z-231219T0824Z/
/RRTN4.2.ER.231218T1222Z.231218T1800Z.231219T0224Z.NO/
811 AM EST Mon Dec 18 2023

...FLOOD WARNING NOW IN EFFECT UNTIL LATE TONIGHT...

* WHAT...Minor flooding is occurring and moderate flooding is 
  forecast.

* WHERE...North Branch Raritan River at Raritan.

* WHEN...Until late tonight.

* IMPACTS...At 7.0 feet, Minor flooding begins upstream on Black 
  River Road.
  At 10.0 feet, Flooding occurs along Old York Road and in North 
  Branch Village.
  At 13.0 feet, The first evacuations begin in Village of North 
  Branch at Route 28 and Vaanderveer Avenue.

* ADDITIONAL DETAILS...
  - At 8:00 AM EST Monday the stage was 10.5 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 8:00 AM EST Monday was 10.5 feet.
  - Forecast...The river is expected to rise to a crest of 13.2
    feet this afternoon. It will then fall below flood stage late
    this evening.
  - Flood stage is 10.0 feet.
  - Flood History...This crest compares to a previous crest of
    13.2 feet on 04/16/2007.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (7 am)        Crest
Location        Stg   Stg Day/Time    Tue  Wed        Stg Time Date

North Branch Rar
Raritan         10.0  10.5 Mon 8 am   5.8  4.0        13.2 1pm 12/18


&&

LAT...LON 4063 7470 4062 7463 4058 7464 4054 7471


$$

SFJ
115 
WGUS81 KPHI 182246
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
546 PM EST Mon Dec 18 2023

...Observed flooding changed from Minor to Moderate severity for the 
following rivers in New Jersey...

  North Branch Raritan River At Raritan affecting Somerset County.



For the Raritan River...including Raritan...Minor flooding is 
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Additional information is available at www.weather.gov/phi.

The next statement will be issued late tonight at 330 AM EST.

&&

NJC035-190830-
/O.CON.KPHI.FL.W.0056.000000T0000Z-231219T0824Z/
/RRTN4.2.ER.231218T1222Z.231218T1930Z.231219T0130Z.NO/
546 PM EST Mon Dec 18 2023

...FLOOD WARNING REMAINS IN EFFECT UNTIL LATE TONIGHT...

* WHAT...Moderate flooding is occurring and minor flooding is 
  forecast.

* WHERE...North Branch Raritan River at Raritan.

* WHEN...Until late tonight.

* IMPACTS...At 7.0 feet, Minor flooding begins upstream on Black 
  River Road.
  At 10.0 feet, Flooding occurs along Old York Road and in North 
  Branch Village.
  At 13.0 feet, The first evacuations begin in Village of North 
  Branch at Route 28 and Vaanderveer Avenue.

* ADDITIONAL DETAILS...
  - At 5:30 PM EST Monday the stage was 12.2 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 5:30 PM EST Monday was 13.4 feet.
  - Forecast...The river is expected to fall below flood stage
    this evening and continue falling to 3.6 feet early Thursday
    afternoon.
  - Flood stage is 10.0 feet.
  - Flood History...This crest compares to a previous crest of
    12.2 feet on 09/21/1938.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (7 pm)        Crest
Location        Stg   Stg Day/Time    Tue  Wed        Stg Time Date

North Branch Rar
Raritan         10.0  12.2 Mon 5 pm   4.4  3.7     Crested & falling
    


&&

LAT...LON 4063 7470 4062 7463 4058 7464 4054 7471


$$

Kruzdlo

What forecasters said that day

The local office's own words before this river flood warning 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 river flood warning went out at Dec 18, 5:27 AM EST, 1 hour 18 minutes earlier.

Area forecast discussion, Dec 18, 5:27 AM EST, 1 hour 18 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
527 AM EST Mon Dec 18 2023

.SYNOPSIS...
Strengthening area of low pressure will move across our area
later this morning and lift north and east into south-eastern
Canada by this evening. An upper trough with a surface cold
front will pass through the region on Tuesday. High pressure
then builds east through the end of the work week. Another weak
cold front may approach for Saturday.

&&

.NEAR TERM /THROUGH TONIGHT/...
Widespread heavy rainfall, gusty winds and flooding is ongoing
across the forecast area this morning as a deepening area of low
pressure tracks along the Mid-Atlantic Coast. The latest surface
analysis and observations, place the center of the primary low (~985
mb) over the Pamlico Sound of North Carolina, which will continue to
track north-northeastward through the morning hours. Meanwhile, a
secondary area of low pressure has started to develop over the
Eastern Shore of Maryland along a coastal front which is aligned
from north to south from Mt. Pocono to Reading and into the
Delmarva. To the east of this low/boundary is where the heaviest
rainfall and gustiest of winds has occurred so far with rainfall
totals ranging from 1.5-3.5 inches and wind gusts up to 40-50
mph. On the western side, heavy rainfall has occurred as well,
but the winds are much lighter.

Radar reflectivity indicates that our area is in the brunt of the
storm early this morning. Heavy rainfall will continue over the next
3-5 hours or so before the secondary surface low lifts overhead and
eventually to the north and east of our area later this morning.
This will give way to just some lingering showers and periods of
light rain on the backside of the low, which will taper off by early
afternoon before cold air advection takes place. Until then,
southeast flow over the Coastal Plain will remain enhanced as the
low level jet sits overhead. Wind gusts up to 40-50 mph will
continue especially for coastal areas where the Wind Advisory is in
place through 7 AM this morning, with gusts up to 40 mph expected
inland. As the low passes by, winds may briefly subside for about an
hour due to the elongated nature of the low. Nonetheless, this will
be short-lived as winds will abruptly pick back up again on the
backside of the low with west-northwest winds up to 35-45 mph
expected this afternoon. For now, have held off on any wind
advisories across our area for this afternoon.

In terms of storm total rainfall, we are looking at a
widespread swath of 2.5-4.5 inches of rain with locally higher
amounts likely across portions of Delaware, Maryland and
southern New Jersey where the axis of rainfall is maximized.
The Flood Watch remains in effect through this afternoon as
many of the smaller rivers and streams will reach their flood
stages later today.

Just as one system passes by, another one will be quickly on its
heels. An upper level trough will swing towards our area late
tonight into early Tuesday. Most of the area will remain dry, but in
the higher elevations of the Poconos, Lehigh Valley and Northern NJ,
there looks to be enough moisture to where some precipitation may
reach the ground. This precip would be in the form of snow as cold
air advection will be well underway with temperatures falling below
freezing. In short, snowfall amounts will be rather light, but will
range from a trace to a half-inch mainly across Carbon and Monroe
counties. Any snowfall should end by Tuesday morning.

&&

.SHORT TERM /TUESDAY THROUGH WEDNESDAY/...
While the Tuesday and Wednesday period won't have nearly as
many weather hazards as what we are about to see over the next
day, there are still a few things to be aware of, including the
potential for some very light snow, primarily in the higher
terrain.

On the heels of the coastal low, another mid and upper level
trough will approach our region, this time from the NW. A low is
expected to close off in the base of this trough by Monday
night or Tuesday, and may start to become negatively tilted, but
looks like it remains relatively progressive over our region,
with any impacts being primarily confined to Monday night and
Tuesday.

As for the impacts, the main one will be very light
precipitation. Because this is digging in from the NW, arriving
just behind the start of dry air advection, expect this to be
quite moisture starved. So any precipitation that we see Monday
night and Tuesday will be very light. None the less, it will be
cold enough across much of the region that there could be a few
snow flakes mixed in with rain drops especially Monday night
into early Tue morning. However, a combination of warm ground
and limited moisture means that only the southern Poconos has a
decent chance (50%) of seeing any accumulating snow, and even
there amounts are expected to be less than one inch.

Additionally, Tuesday should be breezy. The tightest low/mid
level height gradient and tightest surface pressure gradient
never quite line up perfectly, so max wind gusts are likely to
be in the 25 to 30 mph range (possibly as high as 35 mph on
ridge lines).

Once this trough slides east of our region Tuesday night into
Wednesday, it should kick off a return to dry conditions and
seasonable temperatures.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/...
The trend of dry and seasonable is expected to continue
Thursday and Friday as a broad surface high pressure system will
gradually build eastward towards our region.

In the upper levels, a broad ridge becomes entrenched over the
eastern U.S.. Several models depict a short wave trough sliding
eastward to the south of the ridge, which could result in
precipitation by next weekend, but once again, moisture will be
limited. Additionally, depending on how robust the ridge is, the
short wave trough may weaken as it tries to undercut it. All
that being said, stayed with the previous forecast in keeping
slight chance pops on Saturday.

&&

.AVIATION /12Z MONDAY THROUGH FRIDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.

Today...Heavy rainfall will continue through about 12Z. MVFR to
IFR ceilings/visibilities with some potential of LIFR
especially in pockets of heaviest of rainfall this morning. E-SE
winds in the 10- 20 kt range, with higher winds at KMIV/KACY.
Low-level wind shear persists through 12Z, before tapering off
near day break. Conditions start to improve later this morning
and into the afternoon. Ceilings/visibilities improve to MVFR
and VFR as the system pulls away. This will likely occur during
the afternoon. W-NW winds develop on the backside of the low up
between 15-25 kt with gusts up to 30-35 kt possible. Moderate
confidence.

Tonight...VFR expected at all terminals. Winds diminish to SW-W
around 10-15 kt. Isolated chance of a snow shower at KABE, otherwise
remaining dry at all terminals. Moderate confidence.

Outlook...
Tuesday...VFR expected. SW winds 10 to 15 KT becoming
northwesterly 10 to 20 mph with gusts up to 30 mph. Moderate
confidence.

Wednesday through Friday...VFR. NW winds 5 to 15 kt. High
confidence.

&&

.MARINE...
A Gale Warning remains in effect through 6 PM today. SE winds around
30-35 kt sustained with gusts up to 40-45 kt will continue through
early this morning. As the low passes by later this morning, winds
will switch around to the W-NW and be sustained around 25-30 kt with
gusts up to 30-40 kt through this afternoon. Seas ranging from 14-18
feet with localized seas up to 20 feet possible through today.

For tonight, Small Craft Advisory conditions will continue as winds
diminish and gradually become SW-W around 15-20 kt with gusts up to
25 kt. Seas likewise will gradually lower as well between 10-14
feet.

Outlook...

Tuesday...SCA conditions are expected on all waters both due to
NW winds gusting up to 30 kt, and elevated seas primarily on
the Atlantic coastal waters.

Tuesday night through Friday...Once winds diminish, no
additional SCA conditions are likely on the Delaware Bay. On the
Atlantic coastal waters elevated seas may linger for most, if
not all of this period.

&&

.HYDROLOGY...
Flood Watch remains in effect for our entire area for tonight
and Monday. Heaviest rain continue through early this morning.

Rainfall totals of 2.5 to 4.5 inches are forecast across the
region with the highest amounts along and north/west of the I-95
corridor. Some locally higher amounts are probable. Rainfall
amounts were increased a bit more overall. Given that this new
rainfall will be onto saturated ground, there is a high flooding
risk and this will be enhanced especially if much of the
heavier rain falls in a shorter period of time. The highest
hourly rainfall rates are expected to occur over the next 3 to 5
hours before tapering off later this morning. We will need to
watch especially the quicker responding creeks and streams, and
some creeks/rivers in eastern Pennsylvania and northern New
Jersey are forecast to get into minor flooding. In addition,
higher rainfall rates could increase the flooding risk in urban
areas.

&&

.TIDES/COASTAL FLOODING...
A Coastal Flood Warning has been issued for the tidal portion of
the Delaware River for this mornings high tide. The water level
at Philadelphia has already risen into moderate and this should
continue up river to the Burlington tide gauge. Excessive
runoff combined with the earlier strong surge is enhancing the
flooding at high tide.

Cancelled the Coastal Flood Warning for the central and upper
part of the Delaware Bay counties as high tide has passed and
water levels are lowering.

The onshore surge will last the longest across the central to
especially northern portions of the New Jersey coast. Widespread
minor tidal flooding is expected, although this may subside
more by later today as the winds turn offshore and strengthen.
Water will likely be trapped for a while in Barnegat Bay (Ocean
County) as the flow turns offshore and the water, including
runoff, sloshes around. Due to a combination of freshwater
runoff from the heavy rain, the surge being slower to drain out
of Barnegat Bay, and westerly winds pushing the water toward the
bay side of the barrier island, there could be locally MODERATE
flooding for the late morning and early afternoon high tide.

Farther south for the Atlantic coast of Sussex County, Delaware,
mostly back bay flooding should continue for a while today and
therefore maintained the Coastal Flood Advisory for now.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flood Watch through this afternoon for PAZ054-055-060>062-070-
     071-101>106.
     Coastal Flood Warning until 9 AM EST this morning for PAZ070-
     071-106.
NJ...Flood Watch through this afternoon for NJZ001-007>010-012>027.
     Coastal Flood Advisory until 4 PM EST this afternoon for
     NJZ012>014-020-022>027.
     Wind Advisory until 7 AM EST this morning for NJZ013-014-020-
     022>027.
     Coastal Flood Warning until 9 AM EST this morning for
     NJZ017>019.
DE...Flood Watch through this afternoon for DEZ001>004.
     Coastal Flood Advisory until 4 PM EST this afternoon for
     DEZ003-004.
     Wind Advisory until 7 AM EST this morning for DEZ003-004.
MD...Flood Watch through this afternoon for MDZ012-015-019-020.
MARINE...Gale Warning until 6 PM EST this evening for ANZ430-431-
     450>455.

&&

SYNOPSIS...DeSilva/Johnson/RCM
NEAR TERM...DeSilva
SHORT TERM...Johnson
LONG TERM...Johnson
AVIATION...DeSilva/Johnson/RCM
MARINE...DeSilva/Johnson/RCM
HYDROLOGY...PHI
TIDES/COASTAL FLOODING...Gorse
Hazardous weather outlook, Dec 18, 4:44 AM EST, 2 hours 1 minute before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
0444 AM EST Mon Dec 18 2023

DEZ001-190944-
New Castle-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for New Castle County in Delaware.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

DEZ002-190944-
Kent-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Kent County in Delaware.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

DEZ003-190944-
Inland Sussex-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for inland portions of Sussex County
in Delaware.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

DEZ004-190944-
Delaware Beaches-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for the Atlantic coastal portions of
Sussex County in Delaware.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

PAZ054-190944-
Carbon-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Carbon County in Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

PAZ055-190944-
Monroe-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Monroe County in Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

PAZ060-190944-
Berks-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Berks County in Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

PAZ061-190944-
Lehigh-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Lehigh County in Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

PAZ062-190944-
Northampton-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Northampton County in
Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

PAZ070-190944-
Delaware-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Delaware County in Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

PAZ071-190944-
Philadelphia-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Philadelphia County in
Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

PAZ101-190944-
Western Chester-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for western Chester County in
Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

PAZ102-190944-
Eastern Chester-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for eastern Chester County in
Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

PAZ103-190944-
Western Montgomery-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for western Montgomery County in
Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

PAZ104-190944-
Eastern Montgomery-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for eastern Montgomery County in
Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

PAZ105-190944-
Upper Bucks-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for upper Bucks County in
Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

PAZ106-190944-
Lower Bucks-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for lower Bucks County in
Pennsylvania.

.DAY ONE...Through tonight.

Minor coastal flooding is possible.
Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ001-190944-
Sussex-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Sussex County in New Jersey.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ007-190944-
Warren-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Warren County in New Jersey.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ008-190944-
Morris-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Morris County in New Jersey.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ009-190944-
Hunterdon-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Hunterdon County in New Jersey.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ010-190944-
Somerset-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Somerset County in New Jersey.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ012-190944-
Middlesex-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Middlesex County in New Jersey.

.DAY ONE...Through tonight.

Minor coastal flooding is possible.
Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ013-190944-
Western Monmouth-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for western Monmouth County in New
Jersey.

.DAY ONE...Through tonight.

Minor coastal flooding is possible.
Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ014-190944-
Eastern Monmouth-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for eastern Monmouth County in New
Jersey.

.DAY ONE...Through tonight.

Minor coastal flooding is possible.
Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Large breaking waves are expected to result in dangerous
swimming conditions in the surf zone. Localized beach erosion is possible.
Windy conditions may cause isolated instances of tree damage and power outages.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Life-threatening swimming conditions in the surf zone
and significant beach erosion are expected on Tuesday.
Life-threatening swimming conditions in the surf zone
and significant beach erosion are expected on Tuesday.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ015-190944-
Mercer-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Mercer County in New Jersey.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ016-190944-
Salem-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Salem County in New Jersey.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ017-190944-
Gloucester-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Gloucester County in New Jersey.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ018-190944-
Camden-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Camden County in New Jersey.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ019-190944-
Northwestern Burlington-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for northwestern Burlington County in
New Jersey.

.DAY ONE...Through tonight.

Minor coastal flooding is possible.
Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ020-190944-
Ocean-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for inland portions of Ocean County
in New Jersey.

.DAY ONE...Through tonight.

Minor coastal flooding is possible.
Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ021-190944-
Cumberland-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Cumberland County in New Jersey.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ022-190944-
Atlantic-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for inland portions of Atlantic
County in New Jersey.

.DAY ONE...Through tonight.

Minor coastal flooding is possible.
Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ023-190944-
Cape May-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Cape May County excluding the
Atlantic coast in New Jersey.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

NJZ024-190944-
Atlantic Coastal Cape May-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for the Atlantic coastal portions of
Cape May County in New Jersey.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Large breaking waves are expected to result in dangerous swimming
conditions in the surf zone on Tuesday. Localized beach erosion
is possible.
Large breaking waves are expected to result in dangerous swimming
conditions in the surf zone on Tuesday. Localized beach erosion
is possible.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ025-190944-
Coastal Atlantic-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for coastal portions of Atlantic
County in New Jersey.

.DAY ONE...Through tonight.

Minor coastal flooding is possible.
Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Large breaking waves are expected to result in dangerous swimming
conditions in the surf zone on Tuesday. Localized beach erosion
is possible.
Large breaking waves are expected to result in dangerous swimming
conditions in the surf zone on Tuesday. Localized beach erosion
is possible.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ026-190944-
Coastal Ocean-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for coastal portions of Ocean County
in New Jersey.

.DAY ONE...Through tonight.

Minor coastal flooding is possible.
Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Large breaking waves are expected to result in dangerous
swimming conditions in the surf zone. Localized beach erosion is possible.
Windy conditions may cause isolated instances of tree damage and power outages.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Life-threatening swimming conditions in the surf zone
and significant beach erosion are expected on Tuesday.
Life-threatening swimming conditions in the surf zone
and significant beach erosion are expected on Tuesday.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ027-190944-
Southeastern Burlington-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for southeastern Burlington County in
New Jersey.

.DAY ONE...Through tonight.

Minor coastal flooding is possible.
Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

MDZ012-190944-
Kent MD-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Kent County in Maryland.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

MDZ015-190944-
Queen Annes-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Queen Annes County in Maryland.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

MDZ019-190944-
Talbot-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Talbot County in Maryland.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

MDZ020-190944-
Caroline-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for Caroline County in Maryland.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

ANZ430-190944-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for upper Delaware Bay.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

ANZ431-190944-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for lower Delaware Bay.

.DAY ONE...Through tonight.

Gale-force winds and/or very rough seas are forecast.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

ANZ450-190944-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Monmouth County out 20 nm.

.DAY ONE...Through tonight.

Large breaking waves are expected to result in dangerous
swimming conditions in the surf zone. Localized beach erosion is possible.
Hurricane-force winds and/or dangerously high seas are forecast.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Life-threatening swimming conditions in the surf zone
and significant beach erosion are expected on Tuesday.
Life-threatening swimming conditions in the surf zone
and significant beach erosion are expected on Tuesday.
Gale-force winds and/or very rough seas are forecast on Tuesday.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

ANZ451-190944-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Ocean County out 20 nm.

.DAY ONE...Through tonight.

Large breaking waves are expected to result in dangerous
swimming conditions in the surf zone. Localized beach erosion is possible.
Hurricane-force winds and/or dangerously high seas are forecast.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Life-threatening swimming conditions in the surf zone
and significant beach erosion are expected on Tuesday.
Life-threatening swimming conditions in the surf zone
and significant beach erosion are expected on Tuesday.
Gale-force winds and/or very rough seas are forecast on Tuesday.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

ANZ452-190944-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Atlantic County out 20 nm.

.DAY ONE...Through tonight.

Hurricane-force winds and/or dangerously high seas are forecast.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Large breaking waves are expected to result in dangerous swimming
conditions in the surf zone on Tuesday. Localized beach erosion
is possible.
Large breaking waves are expected to result in dangerous swimming
conditions in the surf zone on Tuesday. Localized beach erosion
is possible.
Gale-force winds and/or very rough seas are forecast on Tuesday.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

ANZ453-190944-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Cape May County out 20 nm.

.DAY ONE...Through tonight.

Hurricane-force winds and/or dangerously high seas are forecast.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Large breaking waves are expected to result in dangerous swimming
conditions in the surf zone on Tuesday. Localized beach erosion
is possible.
Large breaking waves are expected to result in dangerous swimming
conditions in the surf zone on Tuesday. Localized beach erosion
is possible.
Gale-force winds and/or very rough seas are forecast on Tuesday.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

ANZ454-190944-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to the mouth of Delaware Bay out 20 nm.

.DAY ONE...Through tonight.

Storm-force winds and/or very high seas are expected.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Gale-force winds and/or very rough seas are forecast on Tuesday.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

ANZ455-190944-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
0444 AM EST Mon Dec 18 2023

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Sussex County out 20 nm.

.DAY ONE...Through tonight.

Storm-force winds and/or very high seas are expected.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on potential weather hazards.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Gale-force winds and/or very rough seas are forecast on Tuesday.

Please go to weather.gov/erh/ghwo?wfo=phi for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

In the hours before

Local storm report, Dec 18, 6:01 AM EST, 44 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
601 AM EST Mon Dec 18 2023

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

0545 AM     Flood            Lansdale                40.24N 75.28W
12/18/2023                   Montgomery         PA   Public

            Multiple roads flooded in Montgomery County.
            Some cars stuck.

&&

Gorse
Local storm report, Dec 18, 6:16 AM EST, 29 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
616 AM EST Mon Dec 18 2023

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

0610 AM     Flood            Darby                   39.92N 75.26W
12/18/2023                   Delaware           PA   Emergency Mngr

            Waist deep flooding on the 900 block of
            Springfield Road in Darby Borough. Residents
            evacuated from this block.

&&

Gorse
Local storm report, Dec 18, 6:25 AM EST, 20 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
625 AM EST Mon Dec 18 2023

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

0611 AM     Flood            1 SSE Ridley Park       39.87N 75.32W
12/18/2023                   Delaware           PA   Dept of Highways

            Flooding on PA 291.

&&

Gorse
Local storm report, Dec 18, 6:28 AM EST, 17 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
628 AM EST Mon Dec 18 2023

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

0624 AM     Flood            1 SSW Heathcote         40.38N 74.58W
12/18/2023                   Middlesex          NJ   Dept of Highways

            Flooding on US 1 in both directions at
            Raymond Road in South Brunswick Township.
            All lanes closed.

&&

Gorse
Local storm report, Dec 18, 6:31 AM EST, 14 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
631 AM EST Mon Dec 18 2023

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

0615 AM     Flood            1 NE Hammonton          39.65N 74.79W
12/18/2023                   Atlantic           NJ   Dept of Highways

            Flooding on NJ 54 in both directions between
            north of CR 561 and US 30 in Hammonton. All
            lanes closed.

&&

Gorse
Local storm report, Dec 18, 6:38 AM EST, 7 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
638 AM EST Mon Dec 18 2023

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

0615 AM     Flood            Quakertown              40.44N 75.34W
12/18/2023                   Bucks              PA   Public

            Flooding ongoing in several areas in
            Quakertown.

&&

Gorse

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 18, 12:24 AM ESTAreal Flood AdvisoryPHIHunterdon48 min
Dec 18, 1:12 AM ESTAreal Flood WarningPHIHunterdon16 hr
Dec 18, 2:08 AM ESTAreal Flood WarningPHIGloucester12 hr
Dec 18, 2:15 AM ESTAreal Flood AdvisoryPHIHunterdon, Somerset3 hr
Dec 18, 2:30 AM ESTAreal Flood WarningPHIBurlington, Camden, Gloucester, Mercer16 hr
Dec 18, 3:08 AM ESTAreal Flood AdvisoryPHIHunterdon45 min
Dec 18, 3:29 AM ESTAreal Flood AdvisoryPHIHunterdon, Morris, Somerset, Sussex5 hr
Dec 18, 3:53 AM ESTAreal Flood WarningPHIHunterdon4 hr
Dec 18, 4:14 AM ESTRiver Flood WarningPHIMercer11 hr
Dec 18, 4:39 AM ESTAreal Flood WarningPHIMorris17 hr
Dec 18, 4:46 AM ESTRiver Flood WarningPHIMorris, Passaic50 hr
Dec 18, 4:55 AM ESTRiver Flood WarningPHIEssex, Morris, Passaic6 days
Dec 18, 5:06 AM ESTAreal Flood WarningPHIMorris, Sussex31 hr
Dec 18, 5:08 AM ESTAreal Flood WarningPHIHunterdon, Warren14 hr
Dec 18, 5:10 AM ESTRiver Flood WarningPHIHunterdon, Somerset20 hr
Dec 18, 5:22 AM ESTCoastal Flood WarningPHIBurlington, Camden, Gloucester5 hr
Dec 18, 5:35 AM ESTAreal Flood WarningPHISomerset16 hr
Dec 18, 5:56 AM ESTAreal Flood WarningPHIMercer, Middlesex, Monmouth14 hr
Dec 18, 6:23 AM ESTAreal Flood AdvisoryPHIWarren3 hr
Dec 18, 6:29 AM ESTRiver Flood WarningPHIMorris, Somerset4 days
Dec 18, 6:34 AM ESTRiver Flood WarningPHIEssex, Passaic6 days
Dec 18, 6:38 AM ESTRiver Flood WarningPHIEssex, Morris, Passaic7 days
Dec 18, 6:39 AM ESTRiver Flood WarningPHIMorris3 days
Dec 18, 6:42 AM ESTRiver Flood WarningPHIMiddlesex, Somerset29 hr
Dec 18, 6:43 AM ESTRiver Flood WarningPHIMiddlesex, Somerset36 hr
Dec 18, 6:46 AM ESTRiver Flood WarningPHISomerset50 hr
Dec 18, 7:54 AM ESTRiver Flood WarningPHIBurlington21 days
Dec 18, 8:12 AM ESTRiver Flood WarningPHIMorris, Passaic44 hr
Dec 18, 8:17 AM ESTRiver Flood WarningPHIBergen, Morris, Passaic39 hr
Dec 18, 10:14 AM ESTAreal Flood WarningPHIBurlington23 hr
Dec 18, 10:33 AM ESTAreal Flood WarningPHICumberland, Gloucester, Salem9 hr
Dec 18, 10:37 AM ESTAreal Flood WarningPHIAtlantic9 hr
Dec 18, 11:45 AM ESTCoastal Flood WarningPHIMonmouth, Ocean6 hr
Dec 18, 2:00 PM ESTAreal Flood WarningPHIMonmouth, Ocean15 hr
Dec 18, 3:04 PM ESTRiver Flood WarningPHIMercer5 hr
Dec 18, 3:26 PM ESTAreal Flood WarningPHIWarren20 hr
Dec 18, 3:28 PM ESTRiver Flood WarningPHIMorris10 hr
Dec 18, 3:30 PM ESTRiver Flood WarningPHIMorris, Somerset53 hr
Dec 18, 4:28 PM ESTAreal Flood WarningPHIBurlington, Mercer, Monmouth19 hr
Dec 18, 4:30 PM ESTAreal Flood WarningPHISussex12 hr
Dec 18, 6:13 PM ESTCoastal Flood AdvisoryPHIOcean10 hr

Nearby

River Flood Warnings in New Jersey, 2023Every river flood warning in 2023

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; the gauge from the NWS water service and the USGS.