Alert archive / Pennsylvania / Areal Flood Warnings in 2024

Areal Flood Warning 80, NWS Philadelphia/Mount Holly

April 4, 2024Montgomery County, Pennsylvania

NWS Philadelphia/Mount Holly issued this areal flood warning at Apr 4, 2024, 3:25 AM EDT for Montgomery County, Pennsylvania. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 4, 2024, 3:25 AM EDT (07:25 UTC)
Expired
Apr 4, 2024, 9:48 AM EDT
In force
6 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

County Montgomery County, PA

The radar

The Philadelphia radar (KDIX), 106 km from the middle of the area, began a volume at 07:28 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

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

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 7.4 hours before the alert went out and 229 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 00:00Z on 2024-04-04Temperature 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 00:00Z on 2024-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -384 square meters per square second.1939587897117136156Sfc1 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
600 m above ground
0-6 km bulk shear
92 kt
0-1 km storm-relative helicity
-384 m²/s²
0-3 km storm-relative helicity
-121 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

797 
WGUS41 KPHI 040725
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
325 AM EDT Thu Apr 4 2024

PAC091-041130-
/O.NEW.KPHI.FA.W.0080.240404T0725Z-240404T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery PA-
325 AM EDT Thu Apr 4 2024

...FLOOD WARNING IN EFFECT UNTIL 730 AM EDT THIS MORNING...

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

* WHERE...A portion of southeast Pennsylvania, including the 
  following county, Montgomery.

* WHEN...Until 730 AM EDT.

* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying 
  and flood-prone locations is imminent or occurring. Streams 
  continue to rise due to excess runoff from earlier rainfall.

* ADDITIONAL DETAILS...
  - At 325 AM EDT, Doppler radar and automated rain gauges
    indicated heavy rain. Flooding is already occurring in the
    warned area. Between 1 and 2 inches of rain have fallen.
  - Flooding impacts will continue, but no additional rainfall is
    expected.
  - For Perkiomen Creek at East Greenville:
    At 3:15am the stage was 5.03 feet.
    Flood Stage is 5 feet.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

&&

LAT...LON 4041 7547 4030 7540 4033 7550 4039 7558
      4040 7557 4044 7554 4044 7553 4045 7553
      4043 7550 4042 7548


$$

MJL
2 follow-up statements
313 
WGUS41 KPHI 041053
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
653 AM EDT Thu Apr 4 2024

PAC091-041400-
/O.EXT.KPHI.FA.W.0080.000000T0000Z-240404T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery PA-
653 AM EDT Thu Apr 4 2024

...FLOOD WARNING NOW IN EFFECT UNTIL 10 AM EDT THIS MORNING...

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

* WHERE...A portion of southeast Pennsylvania, including the 
  following county, Montgomery.

* WHEN...Until 1000 AM EDT.

* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying 
  and flood-prone locations is imminent or occurring. Streams 
  continue to rise due to excess runoff from earlier rainfall.

* ADDITIONAL DETAILS...
  - At 651 AM EDT, gauges indicated flooding along Perkiomen
    Creek due to runoff from earlier heavy rainfall. Flooding is
    already occurring in the warned area. Between 1 and 2 inches
    of rain have fallen.
  - Flooding impacts will continue, but no additional rainfall is
    expected.
  - For Perkiomen Creek at East Greenville:
    At 6:31am the stage was 5.16 feet and falling.
    Flood Stage is 5 feet.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

&&

LAT...LON 4041 7547 4030 7540 4033 7550 4039 7558
      4040 7557 4044 7554 4044 7553 4045 7553
      4043 7550 4042 7548


$$

MJL
834 
WGUS81 KPHI 041348
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
948 AM EDT Thu Apr 4 2024

PAC091-041358-
/O.CAN.KPHI.FA.W.0080.000000T0000Z-240404T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery PA-
948 AM EDT Thu Apr 4 2024

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for North Central Montgomery County.

Flood waters are receding. Please continue to heed any remaining 
road closures if you encounter any.

&&

LAT...LON 4041 7547 4030 7540 4033 7550 4039 7558
      4040 7557 4044 7554 4044 7553 4045 7553
      4043 7550 4042 7548


$$

Kruzdlo

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 Apr 4, 1:58 AM EDT, 1 hour 27 minutes earlier.

Area forecast discussion, Apr 4, 1:58 AM EDT, 1 hour 27 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
158 AM EDT Thu Apr 4 2024

.SYNOPSIS...
A strong area of low pressure will continue across the northern
Middle Atlantic region tonight and then it will pass by Cape Cod
Thursday. After that, it will remain nearly stationary through
Friday. For Sunday into Monday, high pressure in place across
southern Canada noses down into the Mid Atlantic region. A warm
front may move into the area early next week.

&&

.NEAR TERM /UNTIL 6 AM THIS MORNING/...
The system is presently crossing the area with gusty showers and
tstms and areas of heavy rains. The severe weather from earlier
has diminished, but gusty winds continue over many areas. More
adjustments for winds/pops and weather were made for the
evening update. Winds should shift to W/NW and slowly diminish
overnight as the front and surface low move offshore.

&&

.SHORT TERM /6 AM THIS MORNING THROUGH SATURDAY/...
As we go into Thursday, low pressure will be moving into the
northeast states, while a second will be moving out of the Great
Lakes region. The second low will eventually be absorbed by the low
across the northeastern states later in the day Thursday into
Thursday night. Meanwhile, the mid-level low will drift across the
area through the day as well, which will bring cold air aloft into
the region. With the westerly flow across the area, along with the
weakening surface low and the cold mid-level low, low-mid level
lapse rates will increase significantly across the area. This will
combine with enhanced moisture to lead to not only rain showers
across the area, but there will be graupel/hail showers across much
of the area as well. There will also be a chance for some
thunder/lightning to occur with some of these showers during the day
as well. Any showers that develop during the day will begin to
diminish through the evening and overnight.

For Friday through Friday night, the low pressure will remain near
the northeast states, with a steady northwest flow across the area.
By Saturday and Saturday night, the low will begin shifting offshore
and out to sea. As the mid-level low pinwheels to our northeast as
well, multiple short wave/vorticity impulses will move across the
area, which will combine with some enhanced moisture across the area
and lead a chance of showers Friday into Saturday. Low-mid level
lapse rates will become steep again Friday afternoon, and with cold
temperatures aloft, there could once again be another round of
possible graupel/hail showers.  We will keep this out of the
forecast for now, but we may need to update the forecast and put
this in if Thursday pans out. For Saturday, it looks like the
graupel/sleet chances are less likely due to weaker lapse rates.

There will also be a chance of snow showers across the higher
elevations of northeast Pennsylvania and northwest New Jersey
through the period, especially at night as temperatures cool. We
expect mostly an inch or less across much of the area.

&&

.LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/...
By Sunday, the low pressure that has been lingering across the
northeast states will be moving out to sea, while high pressure in
place across southern Canada noses down into the Mid Atlantic
region. The high may continue into Monday before splitting, with the
southern portion moving to our south as a warm front moves into the
area Tuesday into Wednesday. Dry weather is expected for Sunday
into Monday. However, as this warm front lifts into the region
and multiple short wave/vorticity impulses move into the area,
there will be increasing chances for precipitation Tuesday into
Wednesday.

&&

.AVIATION /06Z THURSDAY THROUGH MONDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.

Rest of tonight (through 12Z)...Prevailing MVFR with some brief
IFR lingering early. Cigs scatter out to VFR for some sites
south and west over the next several hours with additional
terminals likely by daybreak. Winds shifting to NW then W with
gusts up to 20 kts possible. Medium confid.

Thursday...Scattered showers, some with graupel (or small hail)
will be possible mainly midday/afternoon on Thursday, with MVFR
ceilings possible. Westerly winds 10-20 kt.

Outlook...

Thursday night...Sub-VFR conditions may develop overnight across the
area. Showers during the evening will diminish overnight. West to
northwest winds 5-10 knots. Moderate confidence.

Friday-Saturday...Generally VFR. Scattered showers possible each
day. West to northwest winds 10-15 knots with gusts 20-30 knots
during the day. Moderate confidence.

Sunday-Sunday night...VFR conditions expected. North to northwest
winds 10-15 knots with gusts 15-20 knots during the day, diminishing
to 5-10 knots or less overnight. Moderate confidence.

Monday...VFR conditions expected. West to northwest winds 5-10
knots, becoming southwest overnight. Moderate confidence.

&&

.MARINE...
A Marine Weather statement is out for a few hours as some Gale
gusts have resumed over the northern coastal waters. These are
expected to decrease by midnight as the surface low moves
offshore.

The Marine Dense Fog advisory, the Storm Warning and the Gale
were all taken down as of 8 PM. A Small craft advisory was
raised where the Gale and Storm flags were taken down. The SCA
will continue into Thursday with gusts to 30 kts overnight and
just seas thru Thursday. The seas of 8 to 11 ft will gradually
come down later tonight into Thursday, but will remain above 5
ft much of Thu on the ocean.

Outlook...

Thursday night-Saturday night...Small Craft Advisory conditions
possible for much of the coastal waters during the late week into
early to middle part of the weekend period.

Sunday-Monday...Conditions expected to remain below advisory levels
into early next week.

&&

.HYDROLOGY...
A Flood Watch is in effect for northern Delaware, all of our
Pennsylvania zones, and for our urban/I-95 corridor New Jersey
zones from through 6 PM Thursday.

While the heaviest rain is departing the region over the next
few hours, an additional round of light rain is possible later
this evening, followed by another round of showers tomorrow.
Therefore, no changes to the flood watch at this time. Many
areal flood warnings are in effect with smaller river and stream
flooding occurring, and we have a slew of river forecast points
also forecast to go into MINOR flood, like along the
Schuylkill, Rancocas, Raritan and Passaic Rivers. The Passaic at
Pine Brook and the Millstone at Blackwells Mills may reach
MODERATE flood stage Thursday.

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.

MAJOR FLOODING: Extensive inundation of structures and roads.
Evacuations of people are on a larger scale. The transfer of
property to higher elevations is needed.

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

Our AHPS website has been updated and upgraded to our new
National Water Prediction Service (NWPS) website:

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...
The evening high tide has passed on the Atlantic ocean front.
For the overnight high tide, it looks as if there will be one
more round of tidal flooding. Therefore, the Coastal Flood
Warning for Middlesex, Monmouth, Ocean, and southeastern
Burlington counties remains in effect, and a coastal flood
advisory for the next high tide has been issued for Cape May
and Atlantic Counties. No major changes with the coastal flood
advisory on the tidal Delaware River. Some road closures, beach
erosion, and breaching of sand dunes can be expected in these
areas.

We are between the full/new moon cycles and therefore the
astronomical contribution is lower and the peak surge occurring
near low tide on the Atlantic coast should limit the potential
for major flooding. Elsewhere, another round of widespread minor
coastal flooding is forecast with the late tonight and early
Thursday morning high tide.

No widespread minor flooding is anticipated for the Maryland
Eastern Shore at this time.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flood Watch through this afternoon for PAZ054-055-060>062-070-
     071-101>106.
     Coastal Flood Advisory until 2 PM EDT this afternoon for
     PAZ070-071-106.
NJ...Flood Watch through this afternoon for NJZ001-007>010-012-013-
     015>019.
     Coastal Flood Warning until 10 AM EDT this morning for
     NJZ012>014-020-026-027.
     Coastal Flood Advisory until 2 PM EDT this afternoon for
     NJZ017>019.
     Coastal Flood Advisory until 7 AM EDT this morning for
     NJZ022>025.
DE...Flood Watch through this afternoon for DEZ001.
MD...None.
MARINE...Small Craft Advisory until 8 AM EDT this morning for ANZ430.
     Small Craft Advisory until 1 PM EDT this afternoon for ANZ431.
     Small Craft Advisory until 7 PM EDT this evening for
     ANZ450>455.

&&

SYNOPSIS...Gorse/RCM
NEAR TERM...Dodd
SHORT TERM...RCM/Robertson
LONG TERM...RCM/Robertson
AVIATION...Dodd/MJL/Robertson
MARINE...Dodd/Robertson
HYDROLOGY...
TIDES/COASTAL FLOODING...
Hazardous weather outlook, Apr 3, 8:40 PM EDT, 6 hours 45 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
0840 PM EDT Wed Apr 03 2024

DEZ001-050040-
New Castle-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

DEZ002-050040-
Kent-
0840 PM EDT Wed Apr 03 2024

This Hazardous Weather Outlook is for Kent County in Delaware.

.DAY ONE...Through tonight.

Minor coastal flooding is possible.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

DEZ003-050040-
Inland Sussex-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

Minor coastal flooding is possible.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

DEZ004-050040-
Delaware Beaches-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

Minor coastal flooding is possible.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

PAZ054-050040-
Carbon-
0840 PM EDT Wed Apr 03 2024

This Hazardous Weather Outlook is for Carbon County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

PAZ055-050040-
Monroe-
0840 PM EDT Wed Apr 03 2024

This Hazardous Weather Outlook is for Monroe County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

PAZ060-050040-
Berks-
0840 PM EDT Wed Apr 03 2024

This Hazardous Weather Outlook is for Berks County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

PAZ061-050040-
Lehigh-
0840 PM EDT Wed Apr 03 2024

This Hazardous Weather Outlook is for Lehigh County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

PAZ062-050040-
Northampton-
0840 PM EDT Wed Apr 03 2024

This Hazardous Weather Outlook is for Northampton County in
Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

PAZ070-050040-
Delaware-
0840 PM EDT Wed Apr 03 2024

This Hazardous Weather Outlook is for Delaware County in Pennsylvania.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Minor coastal flooding is possible on Thursday.

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.

PAZ071-050040-
Philadelphia-
0840 PM EDT Wed Apr 03 2024

This Hazardous Weather Outlook is for Philadelphia County in
Pennsylvania.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Minor coastal flooding is possible on Thursday.

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.

PAZ101-050040-
Western Chester-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

PAZ102-050040-
Eastern Chester-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

PAZ103-050040-
Western Montgomery-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

PAZ104-050040-
Eastern Montgomery-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

PAZ105-050040-
Upper Bucks-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

PAZ106-050040-
Lower Bucks-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Minor coastal flooding is possible on Thursday.
Minor coastal flooding is possible on Friday.
Minor coastal flooding is possible on Saturday.

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.

NJZ001-050040-
Sussex-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

NJZ007-050040-
Warren-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

NJZ008-050040-
Morris-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

NJZ009-050040-
Hunterdon-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

NJZ010-050040-
Somerset-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

NJZ012-050040-
Middlesex-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

Moderate coastal flooding is possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Minor coastal flooding is possible on Saturday.

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.

NJZ013-050040-
Western Monmouth-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

Moderate coastal flooding is possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Minor coastal flooding is possible on Thursday.
Minor coastal flooding is possible on Saturday.

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.

NJZ014-050040-
Eastern Monmouth-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

Moderate coastal flooding is possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Minor coastal flooding is possible on Thursday.
Minor coastal flooding is possible on Saturday.

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.

NJZ015-050040-
Mercer-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

NJZ016-050040-
Salem-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

NJZ017-050040-
Gloucester-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Minor coastal flooding is possible on Thursday.

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.

NJZ018-050040-
Camden-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Minor coastal flooding is possible on Thursday.

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.

NJZ019-050040-
Northwestern Burlington-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Minor coastal flooding is possible on Thursday.
Minor coastal flooding is possible on Friday.
Minor coastal flooding is possible on Saturday.

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.

NJZ020-050040-
Ocean-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

Moderate coastal flooding is possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Minor coastal flooding is possible on Thursday.
Minor coastal flooding is possible on Saturday.

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.

NJZ021-050040-
Cumberland-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

Minor coastal flooding is possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

NJZ022-050040-
Atlantic-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

Minor coastal flooding is possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Minor coastal flooding is possible on Saturday.

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.

NJZ023-050040-
Cape May-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

Minor coastal flooding is possible.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Minor coastal flooding is possible on Saturday.

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.

NJZ024-050040-
Atlantic Coastal Cape May-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

Minor coastal flooding is possible.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Minor coastal flooding is possible on Saturday.

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.

NJZ025-050040-
Coastal Atlantic-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

Minor coastal flooding is possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Minor coastal flooding is possible on Saturday.

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.

NJZ026-050040-
Coastal Ocean-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

Moderate coastal flooding is possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Minor coastal flooding is possible on Thursday.
Minor coastal flooding is possible on Saturday.

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.

NJZ027-050040-
Southeastern Burlington-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

Minor coastal flooding is possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Minor coastal flooding is possible on Saturday.

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.

MDZ012-050040-
Kent MD-
0840 PM EDT Wed Apr 03 2024

This Hazardous Weather Outlook is for Kent County in Maryland.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

MDZ015-050040-
Queen Annes-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

MDZ019-050040-
Talbot-
0840 PM EDT Wed Apr 03 2024

This Hazardous Weather Outlook is for Talbot County in Maryland.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

MDZ020-050040-
Caroline-
0840 PM EDT Wed Apr 03 2024

This Hazardous Weather Outlook is for Caroline County in Maryland.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

ANZ430-050040-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
0840 PM EDT Wed Apr 03 2024

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...Thursday through Tuesday.

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.

ANZ431-050040-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
0840 PM EDT Wed Apr 03 2024

This Hazardous Weather Outlook is for lower Delaware Bay.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

ANZ450-050040-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
0840 PM EDT Wed Apr 03 2024

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Monmouth 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...Thursday through Tuesday.

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.

ANZ451-050040-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
0840 PM EDT Wed Apr 03 2024

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Ocean 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...Thursday through Tuesday.

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.

ANZ452-050040-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
0840 PM EDT Wed Apr 03 2024

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Atlantic 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...Thursday through Tuesday.

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.

ANZ453-050040-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

Gale-force winds and/or very rough seas are forecast.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

ANZ454-050040-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
0840 PM EDT Wed Apr 03 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.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

ANZ455-050040-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
0840 PM EDT Wed Apr 03 2024

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

In the hours before

Local storm report, Apr 3, 9:28 PM EDT, 5 hours 57 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
928 PM EDT Wed Apr 3 2024

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

0530 PM     Hail             Greenwood               38.81N 75.59W
04/03/2024  E0.75 Inch       Sussex             DE   Public

            Report relayed through broadcast media. Time
            estimated.

&&

SFJ
Local storm report, Apr 3, 9:34 PM EDT, 5 hours 51 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
934 PM EDT Wed Apr 3 2024

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

0839 PM     Non-Tstm Wnd Dmg Ewing                   40.27N 74.80W
04/03/2024                   Mercer             NJ   Public

            Photo relayed via social media of a tree
            down at an apartment complex in Ewing.

&&

Staarmann
Local storm report, Apr 3, 10:44 PM EDT, 4 hours 41 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
1044 PM EDT Wed Apr 3 2024

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

1016 PM     Marine Tstm Wind Indian Beach            38.68N 75.08W
04/03/2024  M43 MPH          Sussex             DE   Mesonet

            Dewey Beach WeatherFlow mesonet station
            reported 37 kt (43 mph) gust.

&&

MJL
Local storm report, Apr 3, 10:47 PM EDT, 4 hours 38 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
1047 PM EDT Wed Apr 3 2024

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

1035 PM     Marine Tstm Wind 1 SSW North Cape May    38.97N 74.96W
04/03/2024  M41 MPH          Cape May           NJ   Mesonet

            Cape May WeatherFlow mesonet station
            reported a 36 kt (41 mph) wind gust.

&&

MJL

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 3, 8:39 PM EDTAreal Flood WarningPHILehigh, Northampton4 hr
Apr 4, 4:13 AM EDTAreal Flood WarningPHILehigh7 hr
Apr 4, 6:50 PM EDTSpecial Weather StatementPHIChester25 min

Nearby

Areal Flood Warnings in Pennsylvania, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.