An upper trough and associated cold front move into a very moist and warm air mass, with showers and thunderstorms developing and moving through. Storms produced damaging wind gusts.
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.
An upper trough and associated cold front move into a very moist and warm air mass, with showers and thunderstorms developing and moving through. Storms produced damaging wind gusts.
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 Jun 26, 11:08 PM EST, 3 hours 12 minutes earlier.
Area Forecast Discussion
National Weather Service Mount Holly NJ
1208 AM EDT Tue Jun 27 2023
.SYNOPSIS...
A low pressure system will continue to track across the Great
Lakes, pulling a cold front toward our area overnight. As this
low slides across our area Tuesday into Wednesday, the cold
front will cross our region. Weak high pressure may settle near
our area Thursday and Friday, then a warm front lifts northward
later Saturday followed by a cold front approaching on Sunday.
&&
.NEAR TERM /THROUGH TODAY/...
***Continuing Flash Flood Threat into early morning***
1205 AM...Severe risk is diminishing and have allowed the watch
to expire after several extensions. An additional isolated
severe storm can't be entirely ruled out, but overall trend is
definitely weakening at this point. However, plenty of storms
continue to move across the Philly metro, so have extended flood
watch until 3 AM. By that point, expect energy to finally be
exhausted enough to end threat of new flooding rains, though
existing flooding will likely linger into the morning Tuesday.
As an upper-level trough moves into the east Tuesday, surface
low pressure initially over the eastern Great Lakes is forecast
to track east-northeast. The associated diffuse cold front also
continues to move east reaching eastern PA by late day. The
upshot is there will continue to plenty of moisture and lift to
work with so more showers and thunderstorms are expected. For
the morning, think the majority of the activity will be near the
coast with showers/storms then becoming more widespread through
the afternoon over eastern PA, NW NJ through to the urban
corridor. Conditions won't be as favorable for severe weather
compared to today but still think ML CAPEs reach at least
1000-1500 j/kg so some additional severe storms may be possible.
Limiting factors will be the marginal shear and relatively
lower CAPE compared to today that should also be "skinnier" in
nature. Finally, as has been the case the past few days
localized flash flooding will also be a threat near and north of
the urban corridor.
&&
.SHORT TERM /TONIGHT THROUGH THURSDAY/...
The short term period will look to begin Tuesday night with
showers and thunderstorms lingering as a cold front continues to
trek across our area. By Wednesday morning, showers will have
tapered off with the cold front now offshore of the region. Weak
high pressure will look to build behind this front and will
build eastward with time. However, with surface high pressure
being weak with lingering shortwave energy and troughing being
present, the area will look to remain unsettled Wednesday. A
stronger grasp of surface high pressure, though still weak
overall, should take hold Wednesday night and Thursday, finally
allowing our region to see a short break in PoPs.
For Tuesday night, the forecast with carry mainly chance PoPs
starting to taper off by 06z as the cold front pushes eastward.
Model soundings support continued instability into the first
half of the period; will include thunder/thunderstorms with the
forecast. Temperatures and dewpoints will look to remain in the
60s across the region, some light fog/mist is possible for the
early morning hours after showers have passed.
For Wednesday, the forecast will carry mainly slight chance and
chance PoPs increasing to mainly chance and likely PoPs by the
afternoon. As showers will have access to daytime heating,
instability and thunderstorms remain possible for the
afternoon/evening. Highs in the upper 70s and low 80s can be
expected for the region with dewpoints in the low to mid 60s.
For Wednesday Night, no PoPs are included with the forecast.
Lows primarily in the low to mid 60s can be expected.
For Thursday, no PoPs are included in the forecast except some
slight chance PoPs for mainly northern NJ after 18z. These slight
chance PoPs are included due to the possibility of some
shortwave energy/troughing still holding mainly to our north.
Highs in the low to mid 80s can be expected throughout the
region.
&&
.LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
Ensemble guidance indicates that the upper level trough over
the eastern CONUS/offshore should continue to weaken through
Thursday night. Thereafter, the upper level pattern over the
region becomes more zonal before another upper level trough
approaches Saturday/Sunday.
At the surface level, weak high pressure will be over/just
south of the region Friday as low pressure develops over the
Great Lakes region. This low pressure system will look to have
frontogenesis occuring with it with time, with a warm front
approaching the region Saturday. This warm front will look to
possibly cross the region Saturday night into Sunday, with a
cold front approaching the region then on Sunday. This cold
front may cross the region Sunday night into Monday, but
confidence in this timing right now is very low.
With the synoptic pattern described and still more lingering
shortwave energy persisting towards the beginning of the long
term, the forecast will carry mainly chance PoPs with it
throughout the long term term. The afternoon and evening time
frames will again see the chance for showers each day aided by
daytime heating and instability. Temperatures will look to be
about average to just slightly above average through the period.
&&
.AVIATION /04Z TUESDAY THROUGH SATURDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas...
Overnight...TSTMS gradually ending for taf sites, then a chance
for showers following. Areas of fog and some lower clouds
possible towards dawn. South/Southeast winds 5 to 10 kts, mostly
but then light and variable overnight. Medium confid, overall.
Tuesday...MVFR ceilings possible to start the day, then
becoming mainly VFR however some mainly afternoon and evening
showers and thunderstorms will result in local restrictions at
times. South to southwest winds around 10 knots.
Outlook...
Tuesday Night...Sub-VFR with VCTS/SHRA lingering. Moderate
confidence.
Wednesday...VFR conditions during the morning giving way to
sub-VFR conditions for the afternoon/evening with VCTS/SHRA
possible. Moderate confidence.
Wednesday Night...Mainly VFR through the period. Moderate
confidence.
Thursday/Thursday Night...Mainly VFR. Brief sub-VFR period
possible in the afternoon/evening due to VCTS/SHRA. Moderate
confidence.
Friday/Thursday Night...Sub-VFR with VCTS/SHRA possible.
Low confidence.
Saturday/Saturday Night...Sub-VFR with VCTS/SHRA possible. Low
confidence.
&&
.MARINE...
SCA in effect for tonight for all ocean waters. Building South
winds mostly 15 to 20 kts with gusts to 25 kts possible outside
storms. Strong storms have mostly been across inland areas so
far this evening, but there will still be a chance for strong or
severe weather into the early overnight.
For Tuesday, marginal SCA conditions may linger over our
northern waters with continuing showers likely with some storms
as well.
Outlook...
Tuesday Night/Wednesday...SCA conditions possible as seas
linger near 5 feet.
Wednesday Night through Saturday Night...No headlines expected.
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flood Watch until 3 AM EDT early this morning for PAZ054-055-
060>062-070-071-101>106.
NJ...Flood Watch until 3 AM EDT early this morning for NJZ001-
007>010-012-015.
DE...None.
MD...None.
MARINE...Small Craft Advisory until 6 AM EDT early this morning for
ANZ450>455.
&&
SYNOPSIS...Gorse/Wunderlin
NEAR TERM...Fitzsimmons/RCM
SHORT TERM...Wunderlin
LONG TERM...Wunderlin
AVIATION...Fitzsimmons/Wunderlin
MARINE...Fitzsimmons/WunderlinHazardous Weather Outlook National Weather Service Mount Holly NJ 1049 PM EDT Mon Jun 26 2023 DEZ001-280249- New Castle- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for New Castle County in Delaware. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ002-280249- Kent- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ003-280249- Inland Sussex- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ004-280249- Delaware Beaches- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ054-280249- Carbon- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for Carbon County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ055-280249- Monroe- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for Monroe County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ060-280249- Berks- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for Berks County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ061-280249- Lehigh- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for Lehigh County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ062-280249- Northampton- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for Northampton County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ070-280249- Delaware- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for Delaware County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ071-280249- Philadelphia- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for Philadelphia County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ101-280249- Western Chester- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for western Chester County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ102-280249- Eastern Chester- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for eastern Chester County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ103-280249- Western Montgomery- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for western Montgomery County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ104-280249- Eastern Montgomery- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for eastern Montgomery County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ105-280249- Upper Bucks- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for upper Bucks County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ106-280249- Lower Bucks- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for lower Bucks County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ001-280249- Sussex- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for Sussex County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ007-280249- Warren- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for Warren County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ008-280249- Morris- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for Morris County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ009-280249- Hunterdon- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for Hunterdon County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ010-280249- Somerset- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for Somerset County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ012-280249- Middlesex- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for Middlesex County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ013-280249- Western Monmouth- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ014-280249- Eastern Monmouth- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ015-280249- Mercer- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for Mercer County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ016-280249- Salem- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ017-280249- Gloucester- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ018-280249- Camden- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ019-280249- Northwestern Burlington- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ020-280249- Ocean- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ021-280249- Cumberland- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ022-280249- Atlantic- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ023-280249- Cape May- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ024-280249- Atlantic Coastal Cape May- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ025-280249- Coastal Atlantic- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ026-280249- Coastal Ocean- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ027-280249- Southeastern Burlington- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ012-280249- Kent MD- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ015-280249- Queen Annes- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ019-280249- Talbot- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ020-280249- Caroline- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ430-280249- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 1049 PM EDT Mon Jun 26 2023 This Hazardous Weather Outlook is for upper Delaware Bay. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ431-280249- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ450-280249- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ451-280249- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ452-280249- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ453-280249- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ454-280249- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ455-280249- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 1049 PM EDT Mon Jun 26 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...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures.
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
215 AM EDT Tue Jun 27 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0210 AM Flash Flood West Whiteland Twp 40.03N 75.63W
06/27/2023 Chester PA 911 Call Center
Report from 911 call center of several
secondary roads flooded near the Exton
Square mall.
&&
StaarmannPreliminary Local Storm Report
National Weather Service Mount Holly NJ
216 AM EDT Tue Jun 27 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0210 AM Flash Flood 2 SW East Whiteland Twp 40.03N 75.59W
06/27/2023 Chester PA 911 Call Center
Route 202 northbound lanes closed near the
Route 30 junction due to flooding.
&&
StaarmannPreliminary Local Storm Report
National Weather Service Mount Holly NJ
218 AM EDT Tue Jun 27 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0210 AM Flash Flood West Chester 39.96N 75.60W
06/27/2023 Chester PA 911 Call Center
Gay Street closed at Montgomery Avenue due
to flooding.
&&
StaarmannSpecial Weather Statement
National Weather Service Mount Holly NJ
229 AM EDT Tue Jun 27 2023
DEZ001-NJZ016-017-PAZ070-071-102-270700-
New Castle DE-Salem NJ-Gloucester NJ-Delaware PA-Eastern Chester PA-
Philadelphia PA-
229 AM EDT Tue Jun 27 2023
...A strong thunderstorm will impact portions of northern New Castle,
northwestern Salem, northwestern Gloucester, southeastern Chester,
southwestern Philadelphia and Delaware Counties through 300 AM EDT...
At 228 AM EDT, Doppler radar was tracking a strong thunderstorm over
Penns Grove, or over Wilmington, moving northeast at 20 mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Philadelphia, Wilmington, Chester, Deptford, West Deptford,
Pennsville, Yeadon, Woodbury, Pitman, Carneys Point, Folcroft,
Swarthmore, Elsmere, Paulsboro, New Castle, Penns Grove, Salem,
Woodstown, Woodbury Heights and National Park.
This includes the following highways...
New Jersey Turnpike between exits 1 and 2.
Interstate 95 in Pennsylvania between mile markers 0 and 14.
Interstate 95 in Delaware between mile markers 4 and 23.
Interstate 295 in New Jersey between mile markers 0 and 23.
Interstate 476 in Pennsylvania between mile markers 0 and 13.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4005 7537 3979 7508 3978 7509 3978 7506
3977 7505 3953 7557 3962 7572 3981 7572
TIME...MOT...LOC 0628Z 225DEG 18KT 3973 7549
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
GorsePreliminary Local Storm Report
National Weather Service Mount Holly NJ
231 AM EDT Tue Jun 27 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0130 AM Flash Flood 1 NNE Marshallton 39.97N 75.67W
06/27/2023 Chester PA Other Federal
The East Branch Brandywine Creek gauge at
Downingtown reached minor flood stage.
&&
StaarmannSpecial Weather Statement
National Weather Service Mount Holly NJ
301 AM EDT Tue Jun 27 2023
NJZ018-019-PAZ070-071-102>106-270730-
Northwestern Burlington NJ-Camden NJ-Lower Bucks PA-Upper Bucks PA-
Eastern Montgomery PA-Western Montgomery PA-Delaware PA-
Eastern Chester PA-Philadelphia PA-
301 AM EDT Tue Jun 27 2023
...A strong thunderstorm will impact portions of northwestern Camden,
northwestern Burlington, southeastern Montgomery, southern Bucks,
east central Chester, Philadelphia and Delaware Counties through 330
AM EDT...
At 301 AM EDT, Doppler radar was tracking a strong thunderstorm over
Morris Park, or 8 miles west of Philadelphia, moving northeast at 40
mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Philadelphia, Camden, Gloucester City, Bensalem, Norristown, Chester,
Lansdale, West Norriton, East Norriton, Bellmawr, Yeadon, Westtown,
Bristol, Perkasie, Riverside, Conshohocken, Palmyra, Hatboro,
Souderton and Folcroft.
This includes the following highways...
New Jersey Turnpike near exit 3.
Pennsylvania Turnpike between mile markers 321 and 358.
Northeast Extension between mile markers 21 and 33.
Interstate 95 in Pennsylvania between mile markers 5 and 40.
Interstate 76 in Pennsylvania between mile markers 327 and 351.
Interstate 76 in New Jersey between mile markers 0 and 3.
Interstate 295 in New Jersey between mile markers 26 and 29.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
Interstate 676 in New Jersey between mile markers 0 and 4.
Interstate 476 in Pennsylvania between mile markers 0 and 19.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4009 7550 4010 7546 4013 7546 4013 7548
4038 7532 4015 7482 3985 7508 3985 7510
3989 7514 3988 7519 3985 7525 3985 7534
3988 7563
TIME...MOT...LOC 0701Z 213DEG 34KT 3997 7529
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
GorseThe Philadelphia radar (KDIX), 92 km away, was scanning. The volume nearest the first event began at 07:22 UTC.
12 thunderstorm wind. Local standard time, as filed.
Trees and branches down in Lower Providence Township. Time estimated by radar.
Tree down on PA-041. Time estimated from radar.
Corrects previous tstm wnd dmg report from 2 NNW Devault. Downed tree in wires on Church Rd and Pickering Dam Rd. Time estimated from radar. Corrected time.
Trees down throughout north and northeast Philadelphia. Time estimated on radar.
Downed utility pole on Dreher Ave/Glen Brook Rd/Cherry Valley Rd. Time estimated from radar.
Corrects previous tstm wnd dmg report from 1 W Lower Southampton Twp. Report of a utility pole down on PA-132 between Buck Road and Sycamore Drive. Corrected time to estimate from radar.
Down power lines on PA-132. Time estimated from radar.
Power lines down on PA-132. Time estimated from radar.
Downed tree in wires on S Main St. and Main St. Time estimated from radar.
Pole down on Buck Road.
Northampton Emergency management reports trees and wires down throughout the area of Bethlehem. Time estimated via radar.
Northampton Emergency Management reports trees down throughout Palmer Township. Time estimated via radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2023Every state in 2023This day in weather historyWarnings in Pennsylvania, June 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: 1113819, 1113821, 1113823, 1113824, 1113822, 1113820, 1113827, 1113828, 1113829, 1113825, 1113830, 1113831.