Widespread showers and thunderstorms produced locally heavy rain in Delaware on July 16. Rainfall totals were as high as 3 to around 6 inches.
Every event with a place to put it. Tap one for its entry below.
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.
The episode as NWS PHI wrote it up.
Widespread showers and thunderstorms produced locally heavy rain in Delaware on July 16. Rainfall totals were as high as 3 to around 6 inches.
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 Jul 16, 6:04 AM EST, 41 minutes earlier.
Area Forecast Discussion
National Weather Service Mount Holly NJ
704 AM EDT Sun Jul 16 2023
.SYNOPSIS...
A large low pressure system over Canada will send a few waves
of low pressure across our region into early next week. Among
those, a weak cold front is expected to cross our region Sunday
into Sunday evening, with widespread precipitation expected
ahead of the front. Broad, weak high pressure will build in mid
week, before a trough approaches our region at the end of next
week.
&&
.NEAR TERM /THROUGH MONDAY/...
After a brief lull around midnight, in between a seemingly
never- ending stream of shortwaves passing by our region, a more
potent wave is quickly approaching with showers and embedded
thunderstorms with heavy downpours expanding across much of our
region early this morning. This is accompanied by stronger and
larger scale forcing, as well as a slug of deep sub- tropical
moisture. HREF probability- matched mean 6-hour QPF showed many
areas near and west of I-95 seeing 1 to 1.5 inches of rain
through 8 AM, with locally near 3 inches possible where any
storms persist. Areas near and north of I-78 and particularly
I-80 looked to be most at risk, not just due to where the heavy
rain is projected, but because these areas have recently seen
heavy rainfall, with saturated soils making the region primed
for flooding. Sure enough, flooding rains have focused on areas
from the northern Lehigh Valley north and northeastward, but
have lifted out to the northeast, with only some lingering
showers early this morning.
Continuing during the day on Sunday, model guidance suggests the
most persistent thunderstorm activity will shift eastward across
Delaware and New Jersey, with similar HREF PMM amounts as was
mentioned above. That projected shift to the east may be
occurring quicker than earlier expected, so that at least some
portions of our area, especially across eastern PA, may have a
lull for awhile this morning. However additional scattered
showers and thunderstorms will likely develop even back to the
west across eastern PA as a cold front approaches. Those may be
more scattered in nature with perhaps less potential for
training compared to what have been seeing this morning, but
given eastern PA into northwest NJ has been particularly hard
hit the last few days with very saturated soil conditions, it
will not take much more rain to cause flooding issues. We will
continue the Flood Watch everywhere through midnight, and have
now added all of Delaware and eastern MD to the watch, given the
heavy rain already this morning, and hi-res models showing
continued rain focusing on that area. Activity will likely
diminish with the loss of daytime heating and a cold front
pushing through early this evening, with possible just isolated
showers and thunderstorms after 6 PM dissipating completely
after 9 PM or so.
Aside from the flooding threat, isolated severe thunderstorms
will be possible through this afternoon, especially if we see
any partial sunshine and breaks from this mornings more
persistent downpours. CAPE and DCAPE look more minimal compared
to the last couple of days, but there will be enough shear so
that if any storms are able to become more discrete, some
stronger updrafts may develop. The main threat will be locally
gusty winds. However, SPC has a 5% tornado area and a slight
risk near northeast NJ, mainly just out of our area. Thinking
the threat is very low in most of our region with not too much
in the way of low-level veering winds...however, given that we
have already issued a tornado warning for a cell with strong
rotation that tracked across Hunterdon County NJ, we will need
to keep an eye on things. That storm probably took advantage of
an outflow boundary that resulted in very localized higher low-
level shear.
Today will be a very humid, muggy day otherwise, with dewpoints
into the mid-70s, even upper-70s in some spots, along with highs
well into the 80s. Even this morning low temperatures have
struggled to drop below 80 in some spots. Tonight into Monday we
will see a 'break' in the humidity, with dewpoints dropping back
into the 60s, but the increased mixing and still warm airmass
with westerly flow will actually support temperatures rising
into the low 90s Monday afternoon. It will be a dry day with a
fair amount of sunshine. Some areas of fog may develop tonight
though, and that may last into early morning Monday.
&&
.SHORT TERM /MONDAY NIGHT THROUGH TUESDAY/...
The next in the series of short wave troughs associated with the
larger mid and upper level low over the Hudson Bay region will
approach our region on Tuesday. Consequently, have a significant
chance for showers and storms across the region especially
during the day on Tuesday as mid an upper level forcing may be
coincident with peak day time heating. PWATs will again get
near 2 inches as steady south/southwesterly flow sets up, with
dewpoints expected to get into the 70s yet again.
At the surface, another weak cold front is expected to approach
and cross through the region on Tuesday night. It is uncertain
how much of an impact this will have on the evolution of showers
and storms across the region as it will be getting weaker as it
approaches the region and may not arrive until late Tuesday
night.
&&
.LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...
Updated the long term portion of the forecast early tonight as
to focus on the storm threat after midnight. The main concern
through this period is the timing of any short wave troughs
associated with the larger Hudson Bay low which could dig south
far enough to bring precipitation chances to our region. At this
point, the favored period is Thursday into Friday. Not only
is guidance continuing to depict a mid level short wave trough,
but a stronger cold front is possible on Friday. Otherwise, a
series of weak high pressures will largely be in place for the
middle part of the week. However, the subsidence associated with
these high pressures likely won't be quite strong enough to
completely suppress diurnal shower activity. Therefore, PoPs
remain in the 20 to 40 percent range for much of the area
throughout the long term.
Temperature wise, We should be near or slightly above normal
through much of the week, but there is increasing confidence
that the cold front depicted on Friday will bring a
significantly cooler air mass than we have seen lately. If this
trend continues, then temperatures slightly below normal are
possible by the end of the week.
&&
.AVIATION /11Z SUNDAY THROUGH THURSDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas...
Today...Numerous showers and thunderstorms expanding across our
region, with periods of heavy rain and IFR to even briefly LIFR
VSBY possible particularly around the I-95 corridor this
morning. That will tend to shift east across NJ this afternoon,
but scattered thunderstorms will still be possible back to the
west until activity diminishes and shifts offshore this evening.
Ceilings are generally around 010-020, with localized. Some
periods of improvement to VFR will be possible after 15Z or so,
at least outside of shower and thunderstorm activity, but
widespread and sustained improvement to VFR should not be
expected until this evening. Low confidence in the details of
timing thunderstorms and IFR/LIFR conditions.
Tonight...Showers and thunderstorms dissipating or shifting
offshore around 22-02Z, with VFR conditions likely at least
initially. However, areas of fog may develop, especially outside
of the urban corridor, but would not rule out some there as well
particularly toward 12Z. Very light westerly winds. Low
confidence in fog formation.
Monday...VFR. W to SW winds 4 to 8 kt. High confidence.
Outlook...
Tuesday...VFR in the morning, with sub-VFR conditions possible
in the afternoon with showers and thunderstorms developing.
Southerly winds around 10 kt. Moderate confidence.
Wednesday...Mainly VFR. A few evening showers and thunderstorms
possible. Winds 5 to 10 kts. Moderate confidence.
Thursday...Mainly VFR. Restrictions possible with scattered
afternoon and evening showers and thunderstorms. Southwest winds
around 5 to 10 kts. Moderate confidence.
&&
.MARINE...
While winds and waves will remain below Small Craft Advisory
levels through Monday, scattered tstms will have localized
higher seas and winds this morning through the early evening
hours. We have already issued a special marine warning for
Delaware Bay overnight, and more of those may be needed.
Southerly winds may briefly be above 15 kt this morning
particularly north of Barnegat light. Winds will ease and turn
westerly behind a cold front tonight. Seas mostly 3 to 4 ft for
the ocean and around 2 to 3 ft for Delaware Bay.
On Monday, light NW winds early will become S around 10 kt or so
in the afternoon. Seas remaining around 3 to 4 ft.
Outlook...
Tuesday through Thursday...Winds and seas should stay below SCA
criteria.
Rip Currents...
A southerly wind 10 to 15 MPH is anticipated for Sunday with
breaking waves around 2 to 3 feet and a medium period east to
southeast swell. The expected conditions will likely result in a
MODERATE risk of dangerous rip currents along the coasts of
Delaware and New Jersey at that time.
A northwest to west wind 5 to 10 MPH on Monday morning is
forecast to become southerly in the afternoon. Breaking waves
should be 2 to 3 feet with a medium period east to southeast
swell. However, the guidance also indicates the arrival of an
underlying long period swell from the east and southeast which
could enhance the rip current risk. As a result, we will again
carry a MODERATE risk for Monday.
&&
.HYDROLOGY...
A Flood Watch is in effect for all of our PA and NJ counties,
with New Castle County, DE included as well. A widespread 1 to 2
inches of rain is expected for most of the region, with some
locations in northern NJ and eastern PA expected to see 2 to 2.5
inches of rain. Locally higher amounts between 3 to 5 inches
are possible. Taking into account antecedent conditions, it will
not take much for flash flooding to occur, especially in
northern NJ and eastern PA. There remains potential for main-
steam river flooding to occur due to excessive runoff,
particularly later today and tonight. Some rivers, primarily in
northern NJ, are already running high.
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flood Watch through this evening for PAZ054-055-060>062-070-
071-101>106.
NJ...Flood Watch through this evening for NJZ001-007>010-012>027.
DE...Flood Watch through this evening for DEZ001.
Flood Watch until 4 PM EDT this afternoon for DEZ002>004.
MD...Flood Watch until 4 PM EDT this afternoon for MDZ012-015-019-
020.
MARINE...None.
&&
SYNOPSIS...Johnson
NEAR TERM...Dodd
SHORT TERM...Johnson
LONG TERM...AKL/Johnson
AVIATION...Dodd/Johnson
MARINE...Dodd/Johnson
HYDROLOGY...Hazardous Weather Outlook National Weather Service Mount Holly NJ 0549 AM EDT Sun Jul 16 2023 DEZ001-170949- New Castle- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. DEZ002-170949- Kent- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. DEZ003-170949- Inland Sussex- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. DEZ004-170949- Delaware Beaches- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. PAZ054-170949- Carbon- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. PAZ055-170949- Monroe- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. PAZ060-170949- Berks- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. PAZ061-170949- Lehigh- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. PAZ062-170949- Northampton- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. PAZ070-170949- Delaware- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. PAZ071-170949- Philadelphia- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. PAZ101-170949- Western Chester- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. PAZ102-170949- Eastern Chester- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. PAZ103-170949- Western Montgomery- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. PAZ104-170949- Eastern Montgomery- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. PAZ105-170949- Upper Bucks- 0549 AM EDT Sun Jul 16 2023 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...Monday through Saturday. 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. PAZ106-170949- Lower Bucks- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for lower Bucks County in Pennsylvania. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ001-170949- Sussex- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. NJZ007-170949- Warren- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. NJZ008-170949- Morris- 0549 AM EDT Sun Jul 16 2023 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...Monday through Saturday. 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. NJZ009-170949- Hunterdon- 0549 AM EDT Sun Jul 16 2023 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...Monday through Saturday. 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. NJZ010-170949- Somerset- 0549 AM EDT Sun Jul 16 2023 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...Monday through Saturday. 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. NJZ012-170949- Middlesex- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for Middlesex County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ013-170949- Western Monmouth- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for western Monmouth County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ014-170949- Eastern Monmouth- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for eastern Monmouth County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. 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. NJZ015-170949- Mercer- 0549 AM EDT Sun Jul 16 2023 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...Monday through Saturday. 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. NJZ016-170949- Salem- 0549 AM EDT Sun Jul 16 2023 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...Monday through Saturday. 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. NJZ017-170949- Gloucester- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for Gloucester County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ018-170949- Camden- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for Camden County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ019-170949- Northwestern Burlington- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for northwestern Burlington County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ020-170949- Ocean- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for inland portions of Ocean County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ021-170949- Cumberland- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for Cumberland County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. 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. NJZ022-170949- Atlantic- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for inland portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ023-170949- Cape May- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for Cape May County excluding the Atlantic coast in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ024-170949- Atlantic Coastal Cape May- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for the Atlantic coastal portions of Cape May County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. 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. NJZ025-170949- Coastal Atlantic- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for coastal portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. 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. NJZ026-170949- Coastal Ocean- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for coastal portions of Ocean County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. 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. NJZ027-170949- Southeastern Burlington- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for southeastern Burlington County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ012-170949- Kent MD- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. MDZ015-170949- Queen Annes- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. MDZ019-170949- Talbot- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. MDZ020-170949- Caroline- 0549 AM EDT Sun Jul 16 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...Monday through Saturday. 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. ANZ430-170949- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for upper Delaware Bay. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. 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. ANZ431-170949- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for lower Delaware Bay. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. 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. ANZ450-170949- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Monmouth County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. 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. ANZ451-170949- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Ocean County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. 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. ANZ452-170949- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Atlantic County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. 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. ANZ453-170949- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Cape May County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. 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. ANZ454-170949- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- 0549 AM EDT Sun Jul 16 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. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. 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. ANZ455-170949- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 0549 AM EDT Sun Jul 16 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Sussex County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday. 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.
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
705 AM EDT Sun Jul 16 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0630 AM Flash Flood 1 ESE Tatamy 40.73N 75.23W
07/16/2023 Northampton PA Emergency Mngr
Multiple vehicles stuck in flood waters near
Sullivan Trail and Newlins Mill Road. TIme
estimated.
&&
HoeflichPreliminary Local Storm Report
National Weather Service Mount Holly NJ
714 AM EDT Sun Jul 16 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0544 AM Tstm Wnd Dmg Hopatcong 40.93N 74.66W
07/16/2023 Sussex NJ Public
Picture of a large tree down on Hopatchung
Road. Time estimated via radar.
&&
HoeflichPreliminary Local Storm Report
National Weather Service Mount Holly NJ
720 AM EDT Sun Jul 16 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM Flash Flood 1 SSE Bangor 40.86N 75.20W
07/16/2023 Northampton PA Emergency Mngr
Report of a compromised bridge with chunks
washed away near Washington Township, PA.
&&
HoeflichPreliminary Local Storm Report
National Weather Service Mount Holly NJ
729 AM EDT Sun Jul 16 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0600 AM Flash Flood 4 NNE Belvidere 40.88N 75.05W
07/16/2023 Warren NJ Dept of Highways
Report of landslide on Route 46, with lanes
in both directions closed. Time estimated.
&&
HoeflichPreliminary Local Storm Report
National Weather Service Mount Holly NJ
736 AM EDT Sun Jul 16 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0540 AM Tstm Wnd Dmg 1 WNW Mendham 40.78N 74.62W
07/16/2023 Morris NJ Public
Report of trees down on Mountainside Road in
Mendham. Time estimated via radar.
&&
HoeflichPreliminary Local Storm Report
National Weather Service Mount Holly NJ
741 AM EDT Sun Jul 16 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM Rain Wantage Twp 41.24N 74.62W
07/16/2023 M3.65 inch Sussex NJ Trained Spotter
3.65 inch rain report since midnight.
&&
HoeflichThe national radar mosaic for the moment the first event began.
2 flash flood. Local standard time, as filed.
Flood waters inundated parts of a farmstead to the west of Georgetown. Some livestock was relocated due to the flooding.
Flood waters reached at least 12 homes in Greenwood. The rising water was reported to have damaged 4 vehicles.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Delaware in 2023Every state in 2023This day in weather historyWarnings in Delaware, July 2023
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: 1102403, 1102407.