Alert archive / Pennsylvania / Areal Flood Warnings in 2024

Areal Flood Warning 49, NWS Philadelphia/Mount Holly

March 23, 20244 counties in New Jersey; New Castle County, Delaware; 5 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this areal flood warning at Mar 23, 2024, 11:15 AM EDT for 4 counties in New Jersey; New Castle County, Delaware; 5 counties in Pennsylvania. It was in force for 6 hr. 30 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Mar 23, 2024, 11:15 AM EDT (15:15 UTC)
Expired
Mar 23, 2024, 5:15 PM EDT
In force
6 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties New Castle County, DE, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Mercer County, NJ, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 77 km from the middle of the area, began a volume at 15:15 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Mar 23, 11:22 AM EDTFLOODBrooklawn, NJFlooding at US 130 and CR 551; all lanes closed.
Mar 23, 12:45 PM EDTFLOOD2 S Brookside, DEThe Christina River at Coochs Bridge (CHBD1) went into flood stage at 12:45 PM.
Mar 23, 12:45 PM EDTFLOODEdgemoor Terrace, DEGovernor Printz Rd closed between Edgemoor Rd and Lea Blvd due to flooding.
Mar 23, 12:50 PM EDTFLOOD1 Nnw Holmesburg, PAThe Pennypack Creek (PLLP1) went into flood stage at 12:50 PM.
Mar 23, 12:57 PM EDTFLOOD1 Ssw Summerdale, PAFrankford Creek (FCRP1) went into flood stage at 12:57.
Mar 23, 1:01 PM EDTFLOODGreen Ridge, PAChester Creek (CHSP1) went into flood stage at 1:01 PM.
Mar 23, 1:32 PM EDTFLOOD1 Nw Cherry Hill Twp, NJNJ 38 near Longwood Ave all lanes closed both directions due to flooding.
Mar 23, 1:32 PM EDTFLOOD1 S Lenola, NJNJ 38 westbound near NJ 73; all lanes closed due to flooding.
Mar 23, 2:00 PM EDTRAIN 3.14Boothwyn, PA
Mar 23, 2:01 PM EDTFLOOD1 Ese Andalusia, PAFlooding on State Rd between Station Ave and Tennis Ave.
Mar 23, 2:07 PM EDTFLOOD1 Sw Feasterville-Trevo, PARoosevelt Blvd south bound between Old Lincoln Hwy and Southampton Rd; right lane flooded.
Mar 23, 2:25 PM EDTFLOOD1 Se Somerton, PARoosevelt Blvd at Hornig Rd is flooded.
Mar 23, 2:34 PM EDTFLOOD1 Sse Moorestown Twp, NJNJ 38 flooded at Church St.
Mar 23, 2:43 PM EDTFLOOD1 Ne Paulsboro, NJAccess Road and Paradise Road flooded.
Mar 23, 2:45 PM EDTFLOODBethel Twp, PASeveral roads flooded in Bethel and Chadds Ford townships, with some road closures. A clogged culvert caused a few residences to evacuate on the 900 block of Springfield Road. Relayed from PEMA.
Mar 23, 2:57 PM EDTRAIN 2.63Bellefonte, DE
Mar 23, 3:05 PM EDTFLOODWindsor, NJ1 right lane closed on US 130 southbound near Church Rd.
Mar 23, 3:07 PM EDTFLOOD1 Wsw Princeton, NJAll lanes closed on US 206 northbound near Quaker Rd due to flooding.
Mar 23, 3:09 PM EDTFLOOD1 E Merchantville, NJGlenwood Avenue flooded.
Mar 23, 3:14 PM EDTFLOOD1 Sse Moorestown Twp, NJLeft lanes closed on NJ 38 in both directions from Church Rd to Mt Laurel Rd due to flooding.
Mar 23, 3:15 PM EDTFLOODEwing, NJPortions of Olden Avenue and Prospect Street closed in the vicinity of West Branch Shabakunk Creek due to flooding.
Mar 23, 3:16 PM EDTRAIN 3.9Bensalem, PA
Mar 23, 4:10 PM EDTRAIN 2.433 Se Chadds Ford, PA
Mar 23, 4:18 PM EDTRAIN 2.92Collingswood, NJ
Mar 23, 4:21 PM EDTRAIN 3.373 Nne Langhorne, PA
Mar 23, 4:21 PM EDTRAIN 3.52 Wnw Yardville, NJ
Mar 23, 4:22 PM EDTFLOODLenola, NJAll lanes closed in both directions on NJ 73 near Main St due to flooding.
Mar 23, 4:31 PM EDTRAIN 3.28Morrisville, PA
Mar 23, 5:07 PM EDTRAIN 3.42Wyndmoor, PA
Mar 23, 5:24 PM EDTRAIN 3.481 N Rancocas, NJ

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 3.3 hours before the alert went out and 210 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, Washington/Dulle, VA at 12:00Z on 2024-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Washington/Dulle, VA at 12:00Z on 2024-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
567 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

856 
WGUS41 KPHI 231515
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
1115 AM EDT Sat Mar 23 2024

DEC003-NJC005-007-015-021-PAC017-029-045-091-101-231915-
/O.NEW.KPHI.FA.W.0049.240323T1515Z-240323T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle DE-Burlington NJ-Camden NJ-Gloucester NJ-Mercer NJ-
Bucks PA-Chester PA-Delaware PA-Montgomery PA-Philadelphia PA-
1115 AM EDT Sat Mar 23 2024

...FLOOD WARNING IN EFFECT UNTIL 315 PM EDT THIS AFTERNOON...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...Portions of northern Delaware, including the following 
  county, New Castle, New Jersey, including the following counties, 
  Burlington, Camden, Gloucester and Mercer, and southeast 
  Pennsylvania, including the following counties, Bucks, Chester, 
  Delaware, Montgomery and Philadelphia.

* WHEN...Until 315 PM EDT.

* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying 
  and flood-prone locations is imminent or occurring.

* ADDITIONAL DETAILS...
  - At 1114 AM EDT, Doppler radar indicated moderate to heavy
    rain. Flooding is ongoing or expected to begin shortly in the
    warned area. Between 1 and 1.5 inches of rain have fallen.
  - Additional rainfall amounts of 1 to 1.5 inches are possible
    in the warned area.
  - Some locations that may experience flooding include...
    Philadelphia, Trenton, Camden, Wilmington, Newark, Gloucester
    City, Bensalem, Ewing, Chester, Willingboro, Princeton and
    Florence.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3972 7580 3976 7581 4008 7525 4037 7464
      4032 7462 4026 7448 3984 7510 3983 7536
      3957 7578 3972 7579


$$

Kruzdlo
3 follow-up statements
831 
WGUS81 KPHI 231856
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
256 PM EDT Sat Mar 23 2024

NJC005-007-015-231906-
/O.CAN.KPHI.FA.W.0049.000000T0000Z-240323T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Camden NJ-Gloucester NJ-
256 PM EDT Sat Mar 23 2024

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for Northwestern Burlington, 
Northwestern Camden and Northwestern Gloucester Counties.

The heavy rain has ended. More targeted Flood Warnings for high 
creeks and rivers were issued for parts of Camden, Gloucester, and 
Burlington County. Please refer to those bulletins for the updated 
information.

A Flood Watch remains in effect until 800 AM EDT Sunday for portions 
of northern Delaware, New Jersey, and southeast Pennsylvania...

&&

LAT...LON 3976 7581 4008 7525 4037 7464 4032 7462
      4026 7448 4015 7464 4018 7471 4013 7474
      4013 7482 4008 7486 4005 7497 3996 7513
      3988 7515 3985 7534 3957 7578 3972 7579


$$

DEC003-NJC021-PAC017-029-045-091-101-231915-
/O.CON.KPHI.FA.W.0049.000000T0000Z-240323T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle DE-Mercer NJ-Bucks PA-Chester PA-Delaware PA-
Montgomery PA-Philadelphia PA-
256 PM EDT Sat Mar 23 2024

...FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM EDT THIS AFTERNOON...

* WHAT...Flooding caused by excessive rainfall continues.

* WHERE...Portions of northern Delaware, including the following 
  county, New Castle, central New Jersey, including the following 
  county, Mercer, and southeast Pennsylvania, including the 
  following counties, Bucks, Chester, Delaware, Montgomery and 
  Philadelphia.

* WHEN...Until 315 PM EDT.

* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying 
  and flood-prone locations is imminent or occurring.

* ADDITIONAL DETAILS...
  - At 255 PM EDT, Doppler radar indicated an area of very heavy
    rainfall across the warned area. Between 2 and 3.5 inches of
    rain have fallen.
  - Additional rainfall amounts up to 0.5 inches are possible in
    the warned area.
  - For Assunpink Creek at Mercerville:
    At 2:30pm the stage was 9.61 feet.
    Flood Stage is 9.5 feet.

    For Pennypack Creek at Pennypack:
    At 2:45pm the stage was 9.2 feet.
    Flood Stage is 7 feet.

    For Wissahickon Creek at Wissahickon:
    At 2:00pm the stage was 5.66 feet.
    Flood Stage is 5 feet.

    For Ridley Creek at Media:
    At 2:30pm the stage was 7.07 feet.
    Flood Stage is 7 feet.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3976 7581 4008 7525 4037 7464 4032 7462
      4026 7448 4015 7464 4018 7471 4013 7474
      4013 7482 4008 7486 4005 7497 3996 7513
      3988 7515 3985 7534 3957 7578 3972 7579


$$

Hoeflich
809 
WGUS41 KPHI 231902
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
302 PM EDT Sat Mar 23 2024

DEC003-NJC021-PAC017-029-045-091-101-232115-
/O.EXT.KPHI.FA.W.0049.000000T0000Z-240323T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle DE-Mercer NJ-Bucks PA-Chester PA-Delaware PA-
Montgomery PA-Philadelphia PA-
302 PM EDT Sat Mar 23 2024

...FLOOD WARNING NOW IN EFFECT UNTIL 515 PM EDT THIS AFTERNOON...

* WHAT...Flooding caused by excessive rainfall continues.

* WHERE...Portions of northern Delaware, including the following 
  county, New Castle, central New Jersey, including the following 
  county, Mercer, and southeast Pennsylvania, including the 
  following counties, Bucks, Chester, Delaware, Montgomery and 
  Philadelphia.

* WHEN...Until 515 PM EDT.

* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying 
  and flood-prone locations is imminent or occurring.

* ADDITIONAL DETAILS...
  - At 301 PM EDT, Doppler radar indicated heavy rain. Flooding
    is ongoing or expected to begin shortly in the warned area.
    Between 2 and 3.5 inches of rain have fallen.
  - Additional rainfall amounts up to 0.5 inches are possible in
    the warned area.
  - For Assunpink Creek at Mercerville:
    At 2:45pm the stage was 9.84 feet and rising.
    Flood Stage is 9.5 feet.
    ...
    For Neshaminy Creek at Langhorne:
    At 2:30pm the stage was 8.23 feet and rising.
    Flood Stage is 9 feet.
    ...
    For Pennypack Creek at Pennypack:
    At 2:45pm the stage was 9.2 feet and falling.
    Flood Stage is 7 feet.
    ...
    For Wissahickon Creek at Wissahickon:
    At 2:00pm the stage was 5.66 feet and cresting.
    Flood Stage is 5 feet.
    ...
    For Ridley Creek at Media:
    At 2:30pm the stage was 7.07 feet and rising.
    Flood Stage is 7 feet.
    ...
    For Christina River at Coochs Bridge:
    At 2:30pm the stage was 12.0 feet and cresting.
    Flood Stage is 11 feet.
    ...
    For Chester Creek at Chester:
    At 2:46pm the stage was 10.06 feet and cresting.
    Flood Stage is 8 feet.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3976 7581 4008 7525 4037 7464 4032 7462
      4026 7448 4015 7464 4018 7471 4013 7474
      4013 7482 4008 7486 4005 7497 3996 7513
      3988 7515 3985 7534 3957 7578 3972 7579


$$

Hoeflich
773 
WGUS81 KPHI 232106
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
506 PM EDT Sat Mar 23 2024

DEC003-NJC021-PAC017-029-045-091-101-232116-
/O.EXP.KPHI.FA.W.0049.000000T0000Z-240323T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle DE-Mercer NJ-Bucks PA-Chester PA-Delaware PA-
Montgomery PA-Philadelphia PA-
506 PM EDT Sat Mar 23 2024

...FLOOD WARNING WILL EXPIRE AT 515 PM EDT THIS AFTERNOON...

The Flood Warning will expire at 515 PM EDT this afternoon for 
Northern New Castle, Mercer, Southeastern Bucks, South Central 
Chester, Delaware, Southeastern Montgomery and Philadelphia Counties.

The heavy rain has ended. Some targeted Areal Flood Warnings remain 
for rivers and creeks in flood stage. Please refer to those 
bulletins for the updated information. Please continue to heed 
remaining road closures.

&&

LAT...LON 3976 7581 4008 7525 4037 7464 4032 7462
      4026 7448 4015 7464 4018 7471 4013 7474
      4013 7482 4008 7486 4005 7497 3996 7513
      3988 7515 3985 7534 3957 7578 3972 7579


$$

Hoeflich

What forecasters said that day

The local office's own words before this areal 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 areal flood warning went out at Mar 23, 9:42 AM EDT, 1 hour 33 minutes earlier.

Area forecast discussion, Mar 23, 9:42 AM EDT, 1 hour 33 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
942 AM EDT Sat Mar 23 2024

.SYNOPSIS...
A coastal low moves into the region today, bringing unsettled
weather to the area. High pressure builds across eastern Canada
and far northern New England for Sunday into Monday, while
extending its way down into the Mid- Atlantic region. This high
will retreat early next week ahead of an approaching front that
may arrive Tuesday into Wednesday. There is the potential for
another coastal storm late next week.

&&

.NEAR TERM /THROUGH SUNDAY/...
As of 930 AM...Widespread moderate rain has now overspread the
entire Mid-Atlantic region this morning as the early morning
freezing rain in the Poconos has now changed over to plain rain.
Latest radar reflectivity shows the heaviest of rainfall just
off to our south and west; over northern Virginia and Maryland.
Over the next hour or so, this will move northeastward into our
area as the track of the surface low moves across the southern
half of the Delmarva. This should keep the axis of heaviest
rainfall along the I-95 corridor through early/mid afternoon.
Rain now looks to end a bit quicker than previously thought,
ending by 2-6PM across the area (from southwest to northeast).
Overall, the forecast was updated to reflect the latest
forecast trends and current obs.

Otherwise expect the aformentioned area of low pressure to
track northeastward up the coast through today tracking right
over the coastal plain. This will bring the heaviest rain near
and just to the left of the low's track across the I-95
corridor. The heaviest rain looks to move in by mid to late
morning and continue into this afternoon. as some frontogenesis
occurs just north and west of the low pressure center. This will
result in rainfall rates nearing 0.5"/hr, possibly higher.
However, without a deep warm cloud layer, not expecting rates in
excess of 1"/hr. Eventually, rain will taper off late this
afternoon into early this evening.

In terms of rainfall amounts, still looking at a widespread 2 to 3+
inches of rain for the majority of the forecast area with slightly
less along the coast as well as over our far N/W zones from Berks
County into the southern Poconos. There were no major changes to the
forecast with this update cycle. As a result, WPC still has the
majority of our area within a Slight Risk (2/4) for Excessive
Rainfall. This type of rainfall will cause urban and small stream
flooding as well as flooding of the usual lower lying areas
beginning today with river flooding then becoming an issue by Sunday
into early next week. No changes have been made to the Flood Watch.
For more information, refer to the Hydrology section below.

In terms of wind, breezy conditions are still expected to develop
across the Coastal Plain as the low moves up the coast with
southeast winds gusting 40 to 50 mph by this afternoon. Then in the
wake of the low expect more widespread winds from the N/NW gusting
40 to 50 mph developing late this afternoon and continuing tonight.
Given the very saturated soils with the preceding heavy rainfall,
these winds may lead to some downed trees and power outages. For
this reason, the Wind Advisory has been expanded with this update to
include all of our counties except the eastern MD shore and begins
at 11 AM along the coastal plain and 4 PM elsewhere.

As mentioned, the rain will quickly wind down from west to east by
late this afternoon into early this evening the with a cold and dry
airmass filling in overnight will help drop temperatures down into
the 20s and 30s across the board. It's possible areas across the
Pocono Plateau could see a brief period of wintry precip as the
storm exits though accumulations will be minimal to non-existent.

Sunday is expected to be quiet and dry as high pressure builds in
from the north and west. Afternoon temperatures will reach the upper
40s to around low 50 for most. Breezy northerly winds will gradually
diminish through the day.

&&

.SHORT TERM /SUNDAY NIGHT/...
An overall calm period of weather is expected to wrap the weekend
and begin the new week. While the surface low from this weekend
looks to continue to churn offshore, high pressure will move in and
keep conditions dry and skies mostly clear. Temperatures will
gradually become fairly seasonable through this period as well. Lows
on Sunday night remain a bit chilly in the upper 20s/low 30s but
highs on Monday should warm into the low/mid 50s for most areas. Low
Monday night look to be mainly in the low/mid 30s.

The main effect of the continued presence of the low offshore (other
than the increased potential for coastal flooding, see more details
on that threat in the dedicated section below) will be a persistent
10-15 mph breeze due to the tightened pressure gradient between the
high and low pressure centers. Gusts in the range of 25-30 mph are
possible at the Jersey Shore and Delaware Beaches with the
northeasterly fetch from out over the open ocean waters.

&&

.LONG TERM /MONDAY THROUGH FRIDAY/...
The beginning of the long term period looks to be quiet with high
pressure remaining in control ahead of a period of more uncertain
weather for the middle and end of next week. Tuesday looks to be dry
with temperatures that should be near normal with highs in the
low/mid 50s.

For Tuesday night and beyond, much of the forecast remains uncertain
with a large spread in the deterministic guidance. Therefore, the
forecast largely sticks close to NBM with chances for rain for much
of the rest of the work week beginning Tuesday night. Overall,
guidance is depicting a wave trying to ride over top of the upper-
level ridge that will be in place with the high pressure at the
surface. This would bring some chances for light rain Tuesday
night/Wednesday with a surface low well to the northwest. However,
the trend has been for the low to be suppressed further northwest
which may result in much of this period being dry. Looking to the
end of the week, model guidance is beginning to hone in on the
potential for a more organized low pressure system to effect the
region as a stronger trough digs across the southeastern United
States.

&&

.AVIATION /14Z SATURDAY THROUGH WEDNESDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas...

Through Today...Mostly IFR with moderate to heavy rain also
restricting visibilities through much of the day. For KABE/KRDG,
east to northeast winds 5-10 knots. For all other terminals,
east winds 8-15 knots with gusts up to 25 knots, especially
during the afternoon. All terminals have a wind shift to
northerly by late afternoon. Moderate confidence overall.

Tonight...Conditions improve to VFR by the evening hours. North
winds 20-25 knots with gusts 30-40 knots possible. High confidence.

Sunday...VFR conditions. North/Northeast winds 15-20 knots gusting
to 30 knots diminish to 10-15 knots gusting to 20 knots in the
afternoon. High confidence.

Outlook...

Sunday night-Monday night...VFR conditions expected; there is a
chance MVFR ceilings could develop overnight Monday. Northeast
winds around 10 knots, with gusts 15-20 knots possible. High
confidence through Monday, moderate confidence Monday night.

Tuesday-Wednesday...Sub VFR conditions are possible through the
period Tuesday through Wednesday with a chance of showers,
particularly on Wednesday. Easterly winds around 10 knots, with
gusts 15-20 knots possible, especially Tuesday. Low confidence.

&&

.MARINE...
A Gale Warning is in effect for all ocean waters including the
Delaware Bay beginning at 6 AM. SE winds are expected to increase
from 15-20 kt to 20-30 kt during the day with gusts up to 35-38 kt
possible. Seas build from 5-8 feet to 8-12 feet.

The winds quickly shift around to north/northwest late this
afternoon into this evening and will be at Gale force with winds
gusting up to 40 knots. These winds will eventually diminish by
late Sunday.

Outlook...

Sunday night through Monday night...Small Craft Advisory conditions
on the ocean waters. Winds will generally be out of the northeast
around 20-25 kt with gusts around 30 kts. A few gale-force gusts are
possible, particularly during the daytime on Monday. 8 to 11 foot
seas. 15-20 knot northeasterly winds with choppy waters expected on
the Delaware Bay.

Tuesday...SCA conditions continue on ocean waters. Northeast winds
remain around 15-20 kts with gusts around 25 kts. Seas begin to
decrease from 8-10 to 6-8 feet.

Wednesday...SCA conditions likely (60%) continuing on ocean waters
with seas remaining elevated above 5 feet. Winds become easterly and
decrease to 10-15 knots.

&&

.HYDROLOGY...
A Flood Watch is in effect for our entire forecast area, except for
Carbon and Monroe Counties through Sunday morning at 8 am.

Rainfall amounts of 2.0 to 3.5 inches are expected within the Flood
Watch. Locally higher amounts are possible. Minor river flooding
across the Passaic and Raritan basins in NJ, across the smaller
creeks in southeastern PA, and across the smaller creeks and rivers
in northern DE is looking more likely. Moderate river flooding is
possible. The forecast axis of heaviest rainfall has generally been
trending NW over the last 48 hours to pretty much right across the
Delaware Valley and I-95 corridor. Confidence in the forecast is
fairly high at this time.

The sandy soil across the coastal plain absorbs heavy rainfall very
well. As a result, there are typically less flooding impacts. Heavy
rainfall over the I95 corridor is a different animal. With soils
less conducive to absorbing rainfall plus the urban environment,
more run-off leads to increased flooding.

Low-lying and poor drainage flooding will commence during the day
today. Run-off will quickly bleed into small creeks and streams. Any
flooding from the larger rivers shouldn't get going until tonight or
Sunday

The heaviest rainfall is forecast to occur late this morning into
this afternoon.

If you live in an area that is conducive to flooding, this is the
time to prepare.

We attach words like MINOR and MODERATE to river flooding. What do
these words mean?

MINOR FLOODING: Minimal to no property damage, but some public
threat can be expected (e.g. inundation of roads).

MODERATE FLOODING: Some inundation of and roads near streams/rivers
are expected. Evacuations of people and/or the transfer of property
to higher elevations can be anticipated.

To stay on top of the flooding potential, visit these websites.

If you want to see the flooding threat in terms of probabilities,
check out this Hydrologic Ensemble Forecast link:

weather.gov/erh/mmefs

There is the familiar AHPS website, however you can now preview our
new experimental National Water Prediction Service (NWPS) website
(NWPS will replace AHPS later this month): preview.water.noaa.gov

If you live in the Passaic or Raritan basins, keep in mind that
inundation mapping is available:

water.weather.gov/AHPS/inundation.php

To view river observations and our forecasts in table form, check
out our dashboard: weather.gov/phi/hydrodashboard

&&

.TIDES/COASTAL FLOODING...
No coastal flooding issues are currently anticipated during the
coastal system impacting the area on Saturday. The one exception
could be the tidal Delaware River. Excessive rainfall runoff
around the midday high tide could result in some spotty minor
flooding along tidal waterways and tributaries along the tidal
Delaware River. However, this will be dependent on exactly
where and when the heaviest rain falls.

As the coastal system departs into Sunday, it will strengthen
while lingering offshore. This will result in an extended
duration of long period swells and rough surf impacting the
Atlantic coast. Surge values of 2-3 feet are currently forecast
by Sunday. This will result in widespread minor coastal
flooding. Flow will remain strongly offshore Sunday, limiting
impacts on that high tide, but by Sunday night, the flow turns
northeasterly, so widespread minor flooding is anticipated to
begin at that time. There is potential for some sites to reach
moderate coastal flooding impacts by later Monday. The elevated
surge values and coastal flooding impacts will likely persist
through Tuesday as well, which will coincide with the full
moon. The exact details regarding this coastal flood event
remain a bit unclear at this time, so remain alert for
additional updates and any potential watches, warnings, or
advisories.

Coastal flooding is not anticipated along the eastern shore of
Maryland. However, strong northerly winds developing late
Saturday through early Sunday will result in tidal anomalies
near 1 to 1.5 feet below normal. Water levels are forecast to
reach their lowest point at the midday low tide on Sunday around
1 to 1.5 feet below MLLW. Mariners should use caution
navigating during low water conditions to avoid running aground.

&&

.CLIMATE...
Widespread heavy rainfall is forecast across the forecast area on
Saturday, March 23rd. Below is a list of the daily precipitation
records for the date as well as all time daily records for March.

March 23rd Daily Precipitation Records

Allentown (ABE)       1.12" in 2005
AC Airport (ACY)      1.59" in 2005
AC Marina (55N)       1.88" in 2005
Georgetown (GED)      2.09" in 2005
Mount Pocono (MPO)    3.13" in 1977
Philadelphia (PHL)    1.36" in 2005
Reading (RDG)         2.22" in 1903
Trenton (TTN)         1.62" in 1961
Wilmington (ILG)      2.05" in 1903

All Time Daily Precipitation Records for March

Allentown (ABE)       2.99" on 3/11/1952
AC Airport (ACY)      3.02" on 3/14/2017
AC Marina (55N)       3.30" on 3/13/1993
Georgetown (GED)      3.21" on 3/21/2000
Mount Pocono (MPO)    4.36" on 3/10/2011
Philadelphia (PHL)    2.79" on 3/15/1912
Reading (RDG)         3.03" on 3/20/1958
Trenton (TTN)         3.62" on 3/25/1876
Wilmington (ILG)      3.21" on 3/21/2000

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flood Watch through Sunday morning for PAZ060>062-070-071-
     101>106.
     Wind Advisory from 4 PM this afternoon to 8 AM EDT Sunday for
     PAZ054-055-060>062-070-071-101>106.
NJ...Flood Watch through Sunday morning for NJZ001-007>010-012>027.
     Wind Advisory from 4 PM this afternoon to 8 AM EDT Sunday for
     NJZ001-007>010-012-015>019-021.
     Wind Advisory until 8 AM EDT Sunday for NJZ013-014-020-022>024-
     026-027.
DE...Flood Watch through Sunday morning for DEZ001>004.
     Wind Advisory from 4 PM this afternoon to 8 AM EDT Sunday for
     DEZ001-002.
     Wind Advisory until 8 AM EDT Sunday for DEZ003-004.
MD...Flood Watch through Sunday morning for MDZ012-015-019-020.
MARINE...Gale Warning until 11 AM EDT Sunday for ANZ430-431.
     Gale Warning until 6 PM EDT Sunday for ANZ450>455.

&&

SYNOPSIS...AKL/Robertson
NEAR TERM...DeSilva/Fitzsimmons
SHORT TERM...AKL
LONG TERM...AKL
AVIATION...AKL/DeSilva/Fitzsimmons
MARINE...AKL/Fitzsimmons
HYDROLOGY...
TIDES/COASTAL FLOODING...
CLIMATE...
Hazardous weather outlook, Mar 23, 10:41 AM EDT, 34 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
1041 AM EDT Sat Mar 23 2024

DEZ001-241441-
New Castle-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

Moderate coastal flooding is possible on Monday.
Minor coastal flooding is possible 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.

DEZ002-241441-
Kent-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

Minor coastal flooding is possible on Sunday.
Moderate coastal flooding is possible on Monday.
Moderate coastal flooding is possible 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.

DEZ003-241441-
Inland Sussex-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

Minor coastal flooding is possible on Sunday.
Moderate coastal flooding is possible on Monday.
Moderate coastal flooding is possible 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.

DEZ004-241441-
Delaware Beaches-
1041 AM EDT Sat Mar 23 2024

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.
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...Sunday through Friday.

Minor coastal flooding is possible on Sunday.
Moderate coastal flooding is possible on Monday.
Moderate coastal flooding is possible 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.

PAZ054-241441-
Carbon-
1041 AM EDT Sat Mar 23 2024

This Hazardous Weather Outlook is for Carbon County in Pennsylvania.

.DAY ONE...Through tonight.

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...Sunday through Friday.

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.

PAZ055-241441-
Monroe-
1041 AM EDT Sat Mar 23 2024

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.
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...Sunday through Friday.

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.

PAZ060-241441-
Berks-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

PAZ061-241441-
Lehigh-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

PAZ062-241441-
Northampton-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

PAZ070-241441-
Delaware-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

PAZ071-241441-
Philadelphia-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

PAZ101-241441-
Western Chester-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

PAZ102-241441-
Eastern Chester-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

PAZ103-241441-
Western Montgomery-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

PAZ104-241441-
Eastern Montgomery-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

PAZ105-241441-
Upper Bucks-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

PAZ106-241441-
Lower Bucks-
1041 AM EDT Sat Mar 23 2024

This Hazardous Weather Outlook is for lower 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...Sunday through Friday.

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.

NJZ001-241441-
Sussex-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

NJZ007-241441-
Warren-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

NJZ008-241441-
Morris-
1041 AM EDT Sat Mar 23 2024

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.
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...Sunday through Friday.

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.

NJZ009-241441-
Hunterdon-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

NJZ010-241441-
Somerset-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

NJZ012-241441-
Middlesex-
1041 AM EDT Sat Mar 23 2024

This Hazardous Weather Outlook is for Middlesex 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...Sunday through Friday.

Minor coastal flooding is possible on Monday.
Minor coastal flooding is possible 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.

NJZ013-241441-
Western Monmouth-
1041 AM EDT Sat Mar 23 2024

This Hazardous Weather Outlook is for western Monmouth 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...Sunday through Friday.

Moderate coastal flooding is possible on Monday.
Minor coastal flooding is possible 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.

NJZ014-241441-
Eastern Monmouth-
1041 AM EDT Sat Mar 23 2024

This Hazardous Weather Outlook is for eastern Monmouth 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...Sunday through Friday.

Moderate coastal flooding is possible on Monday.
Minor coastal flooding is possible 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.

NJZ015-241441-
Mercer-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

NJZ016-241441-
Salem-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

Moderate coastal flooding is possible on Monday.
Minor coastal flooding is possible 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.

NJZ017-241441-
Gloucester-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

NJZ018-241441-
Camden-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

NJZ019-241441-
Northwestern Burlington-
1041 AM EDT Sat Mar 23 2024

This Hazardous Weather Outlook is for northwestern Burlington 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...Sunday through Friday.

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.

NJZ020-241441-
Ocean-
1041 AM EDT Sat Mar 23 2024

This Hazardous Weather Outlook is for inland portions of Ocean 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...Sunday through Friday.

Minor coastal flooding is possible on Sunday.
Moderate coastal flooding is possible on Monday.
Moderate coastal flooding is possible 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.

NJZ021-241441-
Cumberland-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

Minor coastal flooding is possible on Monday.
Minor coastal flooding is possible 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.

NJZ022-241441-
Atlantic-
1041 AM EDT Sat Mar 23 2024

This Hazardous Weather Outlook is for inland portions of Atlantic
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...Sunday through Friday.

Minor coastal flooding is possible on Sunday.
Moderate coastal flooding is possible on Monday.
Moderate coastal flooding is possible 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.

NJZ023-241441-
Cape May-
1041 AM EDT Sat Mar 23 2024

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.
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...Sunday through Friday.

Minor coastal flooding is possible on Sunday.
Moderate coastal flooding is possible on Monday.
Moderate coastal flooding is possible 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.

NJZ024-241441-
Atlantic Coastal Cape May-
1041 AM EDT Sat Mar 23 2024

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.
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...Sunday through Friday.

Minor coastal flooding is possible on Sunday.
Moderate coastal flooding is possible on Monday.
Moderate coastal flooding is possible 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.

NJZ025-241441-
Coastal Atlantic-
1041 AM EDT Sat Mar 23 2024

This Hazardous Weather Outlook is for coastal portions of Atlantic
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.
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...Sunday through Friday.

Minor coastal flooding is possible on Sunday.
Moderate coastal flooding is possible on Monday.
Moderate coastal flooding is possible 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.

NJZ026-241441-
Coastal Ocean-
1041 AM EDT Sat Mar 23 2024

This Hazardous Weather Outlook is for coastal portions of Ocean 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.
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...Sunday through Friday.

Minor coastal flooding is possible on Sunday.
Moderate coastal flooding is possible on Monday.
Moderate coastal flooding is possible on Tuesday.
Windy conditions may cause isolated instances of tree damage and
power outages on Sunday.

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.

NJZ027-241441-
Southeastern Burlington-
1041 AM EDT Sat Mar 23 2024

This Hazardous Weather Outlook is for southeastern Burlington 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...Sunday through Friday.

Minor coastal flooding is possible on Sunday.
Moderate coastal flooding is possible on Monday.
Moderate coastal flooding is possible 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.

MDZ012-241441-
Kent MD-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

MDZ015-241441-
Queen Annes-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

MDZ019-241441-
Talbot-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

MDZ020-241441-
Caroline-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

ANZ430-241441-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
1041 AM EDT Sat Mar 23 2024

This Hazardous Weather Outlook is for upper 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...Sunday through Friday.

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.

ANZ431-241441-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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.

ANZ450-241441-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
1041 AM EDT Sat Mar 23 2024

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

.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...Sunday through Friday.

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

ANZ451-241441-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
1041 AM EDT Sat Mar 23 2024

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Ocean 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...Sunday through Friday.

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

ANZ452-241441-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
1041 AM EDT Sat Mar 23 2024

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Atlantic 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...Sunday through Friday.

Gale-force winds and/or very rough seas are forecast on Sunday.
Storm-force winds and/or very high seas are expected on Monday.
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.

ANZ453-241441-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
1041 AM EDT Sat Mar 23 2024

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Cape May 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...Sunday through Friday.

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

ANZ454-241441-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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

ANZ455-241441-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
1041 AM EDT Sat Mar 23 2024

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...Sunday through Friday.

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

Special weather statement, Mar 23, 6:46 AM EDT, 4 hours 29 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
646 AM EDT Sat Mar 23 2024

PAZ055-231315-
Monroe-
Including the city of Stroudsburg
646 AM EDT Sat Mar 23 2024

....Freezing rain early this morning over the Pocono Plateau...

Areas of freezing rain continue early this morning over the
Pocono Plateau with this expected to change to rain by mid morning
as temperatures rise.
Local storm report, Mar 23, 10:14 AM EDT, 1 hour 1 minute before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
1014 AM EDT Sat Mar 23 2024

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

1000 AM     Freezing Rain    1 N Mount Pocono        41.13N 75.36W
03/23/2024  M0.25 inch       Monroe             PA   Trained Spotter

            Radial measurement 0.10 inches.

&&

MJL
Local storm report, Mar 23, 10:16 AM EDT, 59 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
1016 AM EDT Sat Mar 23 2024

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

0853 AM     Freezing Rain    Pocono Mountains Munici 41.14N 75.38W
03/23/2024  M0.32 inch       Monroe             PA   ASOS

            Radial measurement 0.14 inches.

&&

MJL

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 23, 8:50 AM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Mercer2 hr
Mar 23, 11:21 AM EDTAreal Flood WarningPHIHunterdon, Mercer6 hr
Mar 23, 11:30 AM EDTAreal Flood AdvisoryPHIHunterdon, Mercer, Middlesex, Morris, Somerset69 min
Mar 23, 11:35 AM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Mercer, Salem3 hr
Mar 23, 11:49 AM EDTRiver Flood WarningPHISomerset19 hr
Mar 23, 12:39 PM EDTAreal Flood WarningPHIHunterdon, Mercer, Middlesex, Morris, Somerset6 hr
Mar 23, 12:42 PM EDTAreal Flood AdvisoryPHIHunterdon, Morris, Sussex, Warren5 hr
Mar 23, 1:12 PM EDTRiver Flood WarningPHIMercer12 hr
Mar 23, 2:35 PM EDTAreal Flood WarningPHIBurlington, Camden, Gloucester9 hr
Mar 23, 2:40 PM EDTAreal Flood WarningPHICumberland, Salem16 hr
Mar 23, 3:36 PM EDTCoastal Flood WatchPHIAtlantic, Burlington, Cape May, Middlesex, Monmouth, Ocean24 hr
Mar 23, 3:43 PM EDTRiver Flood WarningPHIBurlington53 hr
Mar 23, 3:56 PM EDTRiver Flood WarningPHIEssex, Morris, Passaic3 days
Mar 23, 3:59 PM EDTRiver Flood WarningPHISomerset38 hr
Mar 23, 4:12 PM EDTRiver Flood WarningPHIHunterdon, Somerset6 hr
Mar 23, 4:14 PM EDTRiver Flood WarningPHIMiddlesex, Somerset20 hr
Mar 23, 4:15 PM EDTRiver Flood WarningPHIMiddlesex, Somerset21 hr
Mar 23, 4:50 PM EDTAreal Flood WarningPHIMercer, Middlesex, Somerset7 hr
Mar 23, 5:09 PM EDTAreal Flood WarningPHIHunterdon5 hr
Mar 23, 5:46 PM EDTAreal Flood WarningPHIBurlington13 hr
Mar 23, 6:22 PM EDTAreal Flood WarningPHIHunterdon, Somerset4 hr
Mar 23, 12:26 PM EDTRiver Flood WarningPHINew Castle6 hr
Mar 23, 3:05 PM EDTRiver Flood WarningPHINew Castle117 min
Mar 23, 11:47 AM EDTRiver Flood WarningPHIBucks15 hr
Mar 23, 12:29 PM EDTRiver Flood WarningPHIDelaware6 hr
Mar 23, 1:56 PM EDTRiver Flood WarningPHIChester5 hr
Mar 23, 2:06 PM EDTRiver Flood WarningPHIChester, Delaware10 hr
Mar 23, 2:43 PM EDTRiver Flood WarningPHIMontgomery6 hr
Mar 23, 3:32 PM EDTRiver Flood WarningPHIChester, Montgomery, Philadelphia7 hr
Mar 23, 4:56 PM EDTAreal Flood WarningPHIMontgomery, Philadelphia7 hr
Mar 23, 5:12 PM EDTAreal Flood WarningPHIBucks7 hr
Mar 23, 5:15 PM EDTAreal Flood WarningPHILehigh, Montgomery5 hr

Nearby

Areal Flood Warnings in Pennsylvania, 2024Areal Flood Warnings in New Jersey, 2024Areal Flood Warnings in Delaware, 2024Every areal flood warning in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.