Delaware, 2023

Dense Fog in Delaware, April 16, 2023

April 16, 2023 · NWS PHI · 1 event in 1 county or zone

Light winds and an antecedent moist air mass following rain the prior day resulted in ideal conditions for fog development across the lower Delaware Valley.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS PHI wrote it up.

Light winds and an antecedent moist air mass following rain the prior day resulted in ideal conditions for fog development across the lower Delaware Valley.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Apr 15, 8:00 PM EST, 5 hours earlier.

Area forecast discussion, Apr 15, 8:00 PM EST, 5 hours before
Area Forecast Discussion
National Weather Service Mount Holly NJ
900 PM EDT Sat Apr 15 2023

.SYNOPSIS...
Broad low pressure will slowly drift north and east across
southern New England overnight. Warm weather will continue into
Sunday night ahead of an approaching cold front. Cooler, drier,
and breezy conditions will then prevail in the wake of the cold
front Monday through Wednesday as high pressure settles to the
south of the region. Another frontal system may impact the area
Friday or Saturday with increasing temperatures later in the
week.

&&

.NEAR TERM /THROUGH SUNDAY/...
Based on satellite data, the mid level low was sliding from
southeastern Pennsylvania to northern New Jersey around 9:00 PM.
The loss of daytime heating will continue to allow the
remaining convection to weaken as it drifts to the northeast and
east. Lingering low level moisture should result in the
development of low clouds and areas of fog. Additional stratus
and fog may drift off the ocean, as well. Lows tonight should
favor the middle and upper 50s with a light and variable wind.

For Sunday, some overnight fog and low stratus will gradually
clear out through mid to late morning as subsidence from a weak
upper level ridge arrives to provide a brief reprieve during the
day. Breaks in the clouds across southern parts of the region
and persistent S to SW flow will keep inland areas warm in the
mid 70s to around 80. Further north across the Lehigh Valley,
Poconos, and NW New Jersey, clouds are expected to linger
through the day, keeping highs limited (but still mild) in the
upper 60s to low 70s. With SE flow across the coastal areas,
high temps there will only reach the mid 60s.

&&

.SHORT TERM /SUNDAY NIGHT THROUGH MONDAY NIGHT/...
A cold front extending southeastward from surface low pressure
undergoing cyclolysis across the Great Lakes will approach
Sunday night and cross the area overnight. Widely scattered
showers and a few thunderstorms associated with the front should
be already in progress upstream as it approaches during the
evening. The general trend timing-wise for the frontal passage
is still trending toward a faster solution, putting rain/thunder
chances into our area shortly after midnight Sunday night. The
faster solution would have the dry slot moving into the area by
daybreak Monday morning with a nearly completely dry daytime
period Monday which seems most likely. The showers and any
thunderstorms will be benign, providing some needed rainfall to
some areas. Low temperatures will be in the 50s areawide.

For Monday, breezy southwest winds will develop behind the
front with temperatures rising into the mid 60s to near 70
degrees across the coastal plains. Skies should clear across the
coastal plains, although cooling at the mid-levels and
increased surface moisture should keep skies mostly cloudy
northwest of I-95. A few afternoon showers could develop in this
region as well.

Westerly winds will prevail around 10-20 mph Monday night with
temperatures falling into the 40s and skies gradually clearing.
A few light showers are possible across our far western zones,
but with dry air building, coverage should be scattered at best.

&&

.LONG TERM /TUESDAY THROUGH SATURDAY/...
The closed mid-level low will lift northeast and away from the
area Wednesday as ridging briefly returns. Heights will rise
through the day on Wednesday and surface high pressure will
continue building to our south before sliding offshore. A cooler
and drier airmass will be in place behind the departing system
with a good deal of sun along with breezy west to northwest
winds. Winds will relax some on Wednesday compared to Tuesday
with gusts in the 20-25 mph.

Both Tuesday and Wednesday night will be chilly with lows
ranging from the mid 30s north to mid 40s south. With a pressure
gradient in place, induced winds should preclude any widespread
frost formation across the Lehigh Valley and northern New
Jersey despite temperatures in the mid 30s.

Temperatures will begin to rebound considerably by Thursday and
Friday as upper ridging shifts offshore and the surface high
shift the winds back to the south and southwest. Highs Thursday
will be well into the 70s with lows back into the 50s. Another
trough and cold front will approach the region Friday or
Saturday as a low slides through the Great Lakes. As it does so,
flow will remain southerly and drive temperatures likely into
the upper 70s if not low 80s as highs for Friday. Deterministic
guidance is still spread on exact timing of the frontal passage,
but the first half of next weekend could be unsettled with
showers around Friday into Saturday.

&&

.AVIATION /01Z SUNDAY THROUGH THURSDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.

Overnight...Showers are expected to move away to our east and
northeast. However, conditions will likely lower to MVFR and IFR
with the development of stratus and areas of fog. Variable wind
5 knots or less. Medium confidence.

Sunday...MVFR and IFR conditions in the morning, improving to
VFR for the afternoon. Variable wind 5 knots or less, becoming
southerly around 4 to 8 knots. Medium confidence.

Outlook...

Sunday night...MVFR to IFR conditions will develop as showers
and a few thunderstorms spread into the area. Winds southeast
around 5-10 kts. LLWS possible. Moderate confidence.

Monday through Monday night...Possible sub-VFR conditions in
the morning with rain showers/lingering cloud cover improving to
VFR in the afternoon. A few showers possible mainly at RDG/ABE
up to ~18z. Southwesterly winds 10-15 knots with gusts to 20
knots. Moderate confidence.

Tuesday...VFR. Westerly winds 15-20 knots with gusts to 30
knots. High confidence.

Wednesday...Northwesterly winds 10-15 knots with gusts to 25
knots. High confidence.

Thursday...VFR. Southwesterly winds 5-10 knots. High
confidence.

&&

.MARINE...
Sub-SCA conditons expected through Sunday. Southeasterly winds
5-10 kt overnight will turn more southwest. Seas generally 2-3
ft. Main concern tonight will be the risk of fog on the waters.
As a result, Dense Fog Advisories are in effect for the NJ
coastal waters and Delaware Bay.

Outlook...

Sunday through Sunday night...Areas of dense marine fog
possible with visibility 1-3 NM. East to southeast winds will
increase to around 10-15 kts and shift southerly by Sunday
evening. Scattered showers and thunderstorms Sunday night. Seas
2-4 feet.

Monday through Monday night...No marine headlines expected.
Southwesterly winds 10-15 knots with gusts near 20 knots. Seas
3-4 feet.

Tuesday...Small Craft Advisory conditions probable. Westerly
winds 15-20 kts with gusts up to 30 knots. Seas 3-4 feet.

Tuesday night through Thursday...No marine headlines expected.
West to northwest winds around 15-20 knots, decreasing to 5-10
knots by Thursday. Seas 2-4 feet.

&&

.FIRE WEATHER...
The recent showers and thunderstorms will diminish the fire
weather threat for the rest of the weekend. Additional wetting
rainfall expected Sunday night. This may temporarily limit the
risk of fire spread until we dry out later towards the middle of
next week.

&&

.CLIMATE...
Record high temperatures were set at ABE and MPO on Friday,
April 14th. ACY and the AC Marina both set new record warmest
low temperatures Friday as well. Record highs were safe today,
however record warmest low temperatures may be in jeopardy.

           4/15 Saturday
                     Warmest Low
Allentown (ABE)       59 in 2002
AC Airport (ACY)      61 in 2002
AC Marina (55N)       59 in 1941 & 2006
Georgetown (GED)      65 in 2002
Mount Pocono (MPO)    58 in 1960 & 2002
Philadelphia (PHL)    64 in 2002
Reading (RDG)         64 in 1938
Trenton (TTN)         63 in 2002
Wilmington (ILG)      62 in 2002

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...Dense Fog Advisory until 8 AM EDT Sunday for ANZ430-431-
     450>454.

&&

SYNOPSIS...MJL
NEAR TERM...Iovino/MJL
SHORT TERM...Brudy/Staarmann
LONG TERM...Brudy/Staarmann
AVIATION...Brudy/Iovino
MARINE...Brudy/MJL
FIRE WEATHER...Staff
CLIMATE...Staff
Hazardous weather outlook, Apr 15, 9:46 PM EST, 3 hours 14 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
1046 PM EDT Sat Apr 15 2023

DEZ001-170246-
New Castle-
1046 PM EDT Sat Apr 15 2023

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...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.

DEZ002-170246-
Kent-
1046 PM EDT Sat Apr 15 2023

This Hazardous Weather Outlook is for Kent County in Delaware.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.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.

DEZ003-170246-
Inland Sussex-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.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.

DEZ004-170246-
Delaware Beaches-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.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.

PAZ054-170246-
Carbon-
1046 PM EDT Sat Apr 15 2023

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...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.

PAZ055-170246-
Monroe-
1046 PM EDT Sat Apr 15 2023

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...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.

PAZ060-170246-
Berks-
1046 PM EDT Sat Apr 15 2023

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...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.

PAZ061-170246-
Lehigh-
1046 PM EDT Sat Apr 15 2023

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...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.

PAZ062-170246-
Northampton-
1046 PM EDT Sat Apr 15 2023

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...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.

PAZ070-170246-
Delaware-
1046 PM EDT Sat Apr 15 2023

This Hazardous Weather Outlook is for Delaware County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.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.

PAZ071-170246-
Philadelphia-
1046 PM EDT Sat Apr 15 2023

This Hazardous Weather Outlook is for Philadelphia County in
Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.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.

PAZ101-170246-
Western Chester-
1046 PM EDT Sat Apr 15 2023

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...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.

PAZ102-170246-
Eastern Chester-
1046 PM EDT Sat Apr 15 2023

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...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.

PAZ103-170246-
Western Montgomery-
1046 PM EDT Sat Apr 15 2023

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...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.

PAZ104-170246-
Eastern Montgomery-
1046 PM EDT Sat Apr 15 2023

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...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.

PAZ105-170246-
Upper Bucks-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Areas of fog, some of which could be dense, are possible.

Please go to weather.gov/phi/ehwo 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.

PAZ106-170246-
Lower Bucks-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Areas of fog, some of which could be dense, are possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of fog, some of which could be dense, are possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ001-170246-
Sussex-
1046 PM EDT Sat Apr 15 2023

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...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.

NJZ007-170246-
Warren-
1046 PM EDT Sat Apr 15 2023

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...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.

NJZ008-170246-
Morris-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Areas of fog, some of which could be dense, are possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of fog, some of which could be dense, are possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ009-170246-
Hunterdon-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of fog, some of which could be dense, are possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ010-170246-
Somerset-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Areas of fog, some of which could be dense, are possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of fog, some of which could be dense, are possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ012-170246-
Middlesex-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Areas of fog, some of which could be dense, are possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Widespread dense fog is possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ013-170246-
Western Monmouth-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of fog, some of which could be dense, are possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ014-170246-
Eastern Monmouth-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Minor coastal flooding is possible on Sunday.
Widespread dense fog is possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ015-170246-
Mercer-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Areas of fog, some of which could be dense, are possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Widespread dense fog is possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ016-170246-
Salem-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of fog, some of which could be dense, are possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ017-170246-
Gloucester-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of fog, some of which could be dense, are possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ018-170246-
Camden-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of fog, some of which could be dense, are possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ019-170246-
Northwestern Burlington-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of fog, some of which could be dense, are possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ020-170246-
Ocean-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Widespread dense fog is possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ021-170246-
Cumberland-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of fog, some of which could be dense, are possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ022-170246-
Atlantic-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of fog, some of which could be dense, are possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ023-170246-
Cape May-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of fog, some of which could be dense, are possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ024-170246-
Atlantic Coastal Cape May-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of fog, some of which could be dense, are possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ025-170246-
Coastal Atlantic-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Widespread dense fog is possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ026-170246-
Coastal Ocean-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Minor coastal flooding is possible on Sunday.
Widespread dense fog is possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

NJZ027-170246-
Southeastern Burlington-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Widespread dense fog is possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

MDZ012-170246-
Kent MD-
1046 PM EDT Sat Apr 15 2023

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...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.

MDZ015-170246-
Queen Annes-
1046 PM EDT Sat Apr 15 2023

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...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.

MDZ019-170246-
Talbot-
1046 PM EDT Sat Apr 15 2023

This Hazardous Weather Outlook is for Talbot County in Maryland.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.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.

MDZ020-170246-
Caroline-
1046 PM EDT Sat Apr 15 2023

This Hazardous Weather Outlook is for Caroline County in Maryland.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.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.

ANZ430-170246-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
1046 PM EDT Sat Apr 15 2023

This Hazardous Weather Outlook is for upper Delaware Bay.

.DAY ONE...Through tonight.

Areas of fog, some of which could be dense, are possible.

Please go to weather.gov/phi/ehwo for more information on potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of fog, some of which could be dense, are possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

ANZ431-170246-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
1046 PM EDT Sat Apr 15 2023

This Hazardous Weather Outlook is for lower Delaware Bay.

.DAY ONE...Through tonight.

Areas of fog, some of which could be dense, are possible.

Please go to weather.gov/phi/ehwo 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.

ANZ450-170246-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Widespread dense fog is possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

ANZ451-170246-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Widespread dense fog is possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

ANZ452-170246-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Widespread dense fog is possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

ANZ453-170246-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Widespread dense fog is possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

ANZ454-170246-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Widespread dense fog is possible.

Please go to weather.gov/phi/ehwo for more information on potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of fog, some of which could be dense, are possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

ANZ455-170246-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
1046 PM EDT Sat Apr 15 2023

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

.DAY ONE...Through tonight.

Areas of fog, some of which could be dense, are possible.

Please go to weather.gov/phi/ehwo for more information on potential weather hazards.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Areas of fog, some of which could be dense, are possible on Sunday.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.SPOTTER INFORMATION STATEMENT...

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

In the hours before

Local storm report, Apr 15, 7:56 PM EST, 5 hours 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
856 PM EDT SAT APR 15 2023

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

0420 PM     HAIL             1 W ALBURTIS            40.51N 75.63W
04/15/2023  U0.75 INCH       LEHIGH             PA   PUBLIC

            REPORT FROM MPING: DIME (0.75 IN.).

0443 PM     HAIL             ALBURTIS                40.51N 75.61W
04/15/2023  U0.75 INCH       LEHIGH             PA   PUBLIC

            REPORT FROM MPING: DIME (0.75 IN.).

0445 PM     HAIL             MACUNGIE                40.51N 75.55W
04/15/2023  E0.25 INCH       LEHIGH             PA   PUBLIC

0450 PM     HAIL             JAMISON                 40.26N 75.09W
04/15/2023  E0.70 INCH       BUCKS              PA   PUBLIC

0522 PM     HAIL             1 W WASHINGTON CROSSING 40.29N 74.89W
04/15/2023  U0.50 INCH       BUCKS              PA   PUBLIC

            REPORT FROM MPING: HALF-INCH (0.50 IN.).

0311 PM     HAIL             1 E HACKETTSTOWN        40.85N 74.81W
04/15/2023  U0.50 INCH       MORRIS             NJ   PUBLIC

            REPORT FROM MPING: HALF-INCH (0.50 IN.).

0110 PM     HAIL             1 W DOVER AIR FORCE BAS 39.13N 75.49W
04/15/2023  U0.50 INCH       KENT               DE   PUBLIC

            REPORT FROM MPING: HALF-INCH (0.50 IN.).

&&
Local storm report, Apr 15, 7:57 PM EST, 5 hours 3 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
857 PM EDT SAT APR 15 2023

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

0110 PM     HAIL             1 W DOVER AIR FORCE BAS 39.13N 75.49W
04/15/2023  U0.50 INCH       KENT               DE   PUBLIC

            REPORT FROM MPING: HALF-INCH (0.50 IN.).

0311 PM     HAIL             1 E HACKETTSTOWN        40.85N 74.81W
04/15/2023  U0.50 INCH       MORRIS             NJ   PUBLIC

            REPORT FROM MPING: HALF-INCH (0.50 IN.).

0420 PM     HAIL             1 W ALBURTIS            40.51N 75.63W
04/15/2023  U0.75 INCH       LEHIGH             PA   PUBLIC

            REPORT FROM MPING: DIME (0.75 IN.).

0423 PM     TSTM WND DMG     3 ENE MOORESTOWN        39.98N 74.89W
04/15/2023                   BURLINGTON         NJ   NWS EMPLOYEE

            MULTIPLE LARGE TREE LIMBS DOWN ACROSS
            PORTIONS OF MARNE HIGHWAY NEAR HARTFORD
            ROAD.

0430 PM     FLASH FLOOD      2 NNE MOUNT LAUREL      39.97N 74.88W
04/15/2023                   BURLINGTON         NJ   NWS EMPLOYEE

            LARCHMONT BOULEVARD CLOSED AT WILLOW TURN
            DUE TO FLOODING. A VEHICLE WAS STRANDED AND
            THERE WAS 2 TO 3 FEET OF WATER ON THE
            ROADWAY.

0440 PM     HEAVY RAIN       1 WNW SOUTH JERSEY REGI 39.94N 74.86W
04/15/2023  M1.90 INCH       BURLINGTON         NJ   NWS EMPLOYEE

            UPDATES PREVIOUS HEAVY RAIN REPORT FROM 1
            WNW SOUTH JERSEY REGIONAL AIRPORT: 1.9
            INCHES OF RAIN FELL IN ABOUT 50 MINUTES.
            MOUNT LAUREL TOWNSHIP.

0443 PM     HAIL             ALBURTIS                40.51N 75.61W
04/15/2023  U0.75 INCH       LEHIGH             PA   PUBLIC

            REPORT FROM MPING: DIME (0.75 IN.).

0445 PM     HAIL             MACUNGIE                40.51N 75.55W
04/15/2023  E0.25 INCH       LEHIGH             PA   PUBLIC

0445 PM     HAIL             2 W JAMISON             40.25N 75.13W
04/15/2023  E0.70 INCH       BUCKS              PA   PUBLIC

            WARRINGTON.

0449 PM     HAIL             2 W JAMISON             40.25N 75.13W
04/15/2023  E0.70 INCH       BUCKS              PA   PUBLIC

            REPORT FROM SOCIAL MEDIA SHOWS PICTURE OF
            HAIL ESTIMATED AROUND DIME-SIZED.

0449 PM     HAIL             CRANBURY                40.33N 74.50W
04/15/2023  M0.75 INCH       MIDDLESEX          NJ   NWS EMPLOYEE

0450 PM     HAIL             JAMISON                 40.26N 75.09W
04/15/2023  E0.70 INCH       BUCKS              PA   PUBLIC

0455 PM     HAIL             FURLONG                 40.30N 75.08W
04/15/2023  M0.25 INCH       BUCKS              PA   TRAINED SPOTTER

0455 PM     FLASH FLOOD      ANCIENT OAKS            40.55N 75.59W
04/15/2023                   LEHIGH             PA   TRAINED SPOTTER

            WATER RESCUE AT CHURCH LANE AND OAK DRIVE IN
            TREXLERTOWN.

0500 PM     HEAVY RAIN       SMYRNA                  39.30N 75.60W
04/15/2023  M2.24 INCH       KENT               DE   COCORAHS

0522 PM     HAIL             1 W WASHINGTON CROSSING 40.29N 74.89W
04/15/2023  U0.50 INCH       BUCKS              PA   PUBLIC

            REPORT FROM MPING: HALF-INCH (0.50 IN.).

0530 PM     HEAVY RAIN       1 S HIGH POINT          41.31N 74.66W
04/15/2023  M2.51 INCH       SUSSEX             NJ   TRAINED SPOTTER

0530 PM     FLASH FLOOD      1 SW HAINESPORT         39.97N 74.84W
04/15/2023                   BURLINGTON         NJ   NWS EMPLOYEE

            LANES BLOCKED ON CREEK ROAD NEAR ROUTE 38
            DUE TO FLOODING.

0531 PM     FLASH FLOOD      1 SSW ANCIENT OAKS      40.54N 75.59W
04/15/2023                   LEHIGH             PA   PUBLIC

            REPORT FROM MPING: STREET/ROAD FLOODING;
            STREET/ROAD CLOSED; VEHICLES STRANDED.

0540 PM     HEAVY RAIN       3 W VERNON VALLEY       41.24N 74.55W
04/15/2023  M3.75 INCH       SUSSEX             NJ   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED 3.75 INCHES OF
            STORM TOTAL RAIN SO FAR; RAIN CONTINUES TO
            FALL.

0635 PM     FLASH FLOOD      1 ESE HIGHLAND PARK     40.50N 74.41W
04/15/2023                   MIDDLESEX          NJ   LAW ENFORCEMENT

            LOCAL LAW ENFORCEMENT IN SOUTH BRUNSWICK
            REPORTS ROUTE 1 SOUTH CLOSED DUE TO
            FLOODING.

1255 PM     HAIL             BETHLEHEM               40.63N 75.38W
04/15/2023  E0.25 INCH       NORTHAMPTON        PA   PUBLIC

1258 PM     HAIL             BETHLEHEM               40.63N 75.38W
04/15/2023  M0.88 INCH       NORTHAMPTON        PA   TRAINED SPOTTER

0107 PM     HAIL             DOVER                   39.16N 75.53W
04/15/2023  E0.88 INCH       KENT               DE   PUBLIC

0112 PM     HAIL             DOVER AIR FORCE BASE    39.13N 75.46W
04/15/2023  M0.88 INCH       KENT               DE   PUBLIC

            PICTURE OF ROUGHLY NICKEL SIZE PROVIDED VIA
            SOCIAL MEDIA.

0120 PM     HAIL             FOUNTAIN HILL           40.61N 75.40W
04/15/2023  M0.25 INCH       LEHIGH             PA   TRAINED SPOTTER

0130 PM     FLASH FLOOD      1 NW UPPER SAUCON TWP   40.54N 75.42W
04/15/2023                   LEHIGH             PA   911 CALL CENTER

            US ROUTE 309 IS CLOSED AT HUCKLEBERRY DRIVE.

0135 PM     HAIL             3 NNW PELLETTOWN        41.21N 74.69W
04/15/2023  E0.70 INCH       SUSSEX             NJ   PUBLIC

            BEEMERVILLE.

0135 PM     HAIL             BUSHKILL TWP            40.81N 75.33W
04/15/2023  M0.25 INCH       NORTHAMPTON        PA   TRAINED SPOTTER

0140 PM     HAIL             2 SSW EAST WINDSOR TWP  40.25N 74.55W
04/15/2023  E0.25 INCH       MERCER             NJ   PUBLIC

0145 PM     HAIL             WANTAGE TWP             41.24N 74.61W
04/15/2023  E0.25 INCH       SUSSEX             NJ   TRAINED SPOTTER

0145 PM     HEAVY RAIN       WANTAGE TWP             41.24N 74.62W
04/15/2023  M1.90 INCH       SUSSEX             NJ   TRAINED SPOTTER

0150 PM     HAIL             FRANKLIN TOWNSHIP       40.50N 74.53W
04/15/2023  M0.25 INCH       SOMERSET           NJ   COCORAHS

0150 PM     HAIL             UPPER SAUCON TWP        40.54N 75.41W
04/15/2023  E0.25 INCH       LEHIGH             PA   PUBLIC

0200 PM     FLASH FLOOD      FOUNTAIN HILL           40.61N 75.39W
04/15/2023                   LEHIGH             PA   911 CALL CENTER

            ROADWAY FLOODING.

0200 PM     HAIL             HELLERTOWN              40.58N 75.34W
04/15/2023  M0.50 INCH       NORTHAMPTON        PA   TRAINED SPOTTER

0205 PM     HAIL             2 SSE MIDDLESEX         40.55N 74.49W
04/15/2023  E1.00 INCH       MIDDLESEX          NJ   NWS EMPLOYEE

            QUARTER-SIZED HAIL REPORTED ON I-287.

0205 PM     HAIL             SOUTH BOUND BROOK       40.56N 74.53W
04/15/2023  M0.88 INCH       SOMERSET           NJ   TRAINED SPOTTER

0220 PM     HAIL             NAZARETH                40.74N 75.31W
04/15/2023  E0.25 INCH       NORTHAMPTON        PA   PUBLIC

0230 PM     HAIL             STANHOPE                40.90N 74.72W
04/15/2023  M1.00 INCH       MORRIS             NJ   TRAINED SPOTTER

0245 PM     HAIL             EASTON                  40.69N 75.21W
04/15/2023  E0.25 INCH       NORTHAMPTON        PA   TRAINED SPOTTER

0310 PM     HAIL             MOUNT LAUREL            39.93N 74.89W
04/15/2023  E0.25 INCH       BURLINGTON         NJ   PUBLIC

0310 PM     HAIL             HACKETTSTOWN            40.86N 74.83W
04/15/2023  E0.50 INCH       WARREN             NJ   PUBLIC

0310 PM     HAIL             LAHASKA                 40.35N 75.03W
04/15/2023  M0.75 INCH       BUCKS              PA   TRAINED SPOTTER

0315 PM     HAIL             MOORESTOWN              39.97N 74.94W
04/15/2023  E0.25 INCH       BURLINGTON         NJ   PUBLIC

0315 PM     HAIL             NEW BRITAIN             40.30N 75.19W
04/15/2023  E0.50 INCH       BUCKS              PA   PUBLIC

0320 PM     HAIL             OXFORD                  39.79N 75.97W
04/15/2023  E0.25 INCH       CHESTER            PA   PUBLIC

0330 PM     HEAVY RAIN       1 S HIGH POINT          41.31N 74.66W
04/15/2023  M1.66 INCH       SUSSEX             NJ   TRAINED SPOTTER

0340 PM     HAIL             1 SE WATERFORD TWP      39.76N 74.89W
04/15/2023  M0.75 INCH       CAMDEN             NJ   TRAINED SPOTTER

0345 PM     HAIL             ROSEMONT                40.44N 74.98W
04/15/2023  E0.25 INCH       HUNTERDON          NJ   PUBLIC

0355 PM     HAIL             EAST WINDSOR TWP        40.28N 74.55W
04/15/2023  E0.50 INCH       MERCER             NJ   PUBLIC

0400 PM     HAIL             1 SW SPRINGDALE         39.87N 74.98W
04/15/2023  E0.25 INCH       CAMDEN             NJ   PUBLIC

            VOORHEES TOWNSHIP.

0400 PM     HAIL             1 N CONCORDIA           40.32N 74.45W
04/15/2023  E0.50 INCH       MIDDLESEX          NJ   PUBLIC

            MONROE TOWNSHIP.

0403 PM     HAIL             2 NW SOUTH JERSEY REGIO 39.96N 74.87W
04/15/2023  U0.75 INCH       BURLINGTON         NJ   PUBLIC

            REPORT FROM MPING: DIME (0.75 IN.).

0405 PM     HAIL             1 WNW SOUTH JERSEY REGI 39.94N 74.86W
04/15/2023  M1.00 INCH       BURLINGTON         NJ   NWS EMPLOYEE

            MOUNT LAUREL TOWNSHIP.

0415 PM     HAIL             BORDENTOWN              40.15N 74.71W
04/15/2023  E0.25 INCH       BURLINGTON         NJ   PUBLIC

0430 PM     HAIL             ALBURTIS                40.51N 75.60W
04/15/2023  E0.70 INCH       LEHIGH             PA   PUBLIC

&&
Local storm report, Apr 15, 8:11 PM EST, 4 hours 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
911 PM EDT SAT APR 15 2023

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

0309 PM     LIGHTNING        1 SSE PARKESBURG        39.94N 75.91W
04/15/2023                   CHESTER            PA   LAW ENFORCEMENT

            *** 1 FATAL, 1 INJ ***
            PA STATE POLICE REPORT THAT LIGHTNING STRUCK
            A TREE, CAUSING A LARGE BRANCH TO FALL ON A
            VEHICLE ON LIMESTONE ROAD JUST NORTH OF
            HIGHLAND ROAD IN HIGHLAND TOWNSHIP, PA. 1
            FATALITY AND 1 INJURY WERE REPORTED.

&&

HOEFLICH
Local storm report, Apr 15, 10:00 PM EST, 3 hours before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1100 PM EDT SAT APR 15 2023

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

0600 PM     HEAVY RAIN       1 SSW ANCIENT OAKS      40.53N 75.60W
04/15/2023  M3.45 INCH       LEHIGH             PA   TRAINED SPOTTER

            TIME ESTIMATED.

&&

STAARMANN
Local storm report, Apr 15, 10:02 PM EST, 2 hours 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1102 PM EDT SAT APR 15 2023

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

0423 PM     TSTM WND DMG     3 ENE MOORESTOWN        39.98N 74.89W
04/15/2023                   BURLINGTON         NJ   NWS EMPLOYEE

            CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 3
            ENE MOORESTOWN. MULTIPLE LARGE TREE LIMBS
            DOWN ACROSS PORTIONS OF HARTFORD ROAD JUST
            NORTH OF MARNE HIGHWAY.

&&

STAARMANN

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 dense fog. Local standard time, as filed.

Dense Fog, New Castle

When
April 16, 1:00 AM EST to 10:00 AM EST
Where
New Castle forecast zone
Reported by
ASOS
Coordinates
39.578, -75.639 (the zone’s center; the record gives no point)

The Wilmington New Castle Airport reported visibility of 1/4 mile for several hours.

What these are

Dense Fog
Fog reducing visibility to a quarter mile or less, filed where it caused accidents or disruption.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Delaware in 2023Every state in 2023This day in weather historyWarnings in Delaware, April 2023

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1094865.