Scattered thunderstorms developed ahead of a cold front moving into the mid-Atlantic on August 30. Impacts were limited overall but a couple of storms became severe with a brief damaging wind threat.
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.
Scattered thunderstorms developed ahead of a cold front moving into the mid-Atlantic on August 30. Impacts were limited overall but a couple of storms became severe with a brief damaging wind threat.
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 Aug 30, 3:08 PM EST, 1 hour earlier.
Area Forecast Discussion
National Weather Service Mount Holly NJ
408 PM EDT Mon Aug 30 2021
.SYNOPSIS...
A cold front will push into the region tonight and then become
stationary over the Mid-Atlantic on Tuesday. The remnants of
Ida will ride along that front and pass through the region
Wednesday and Wednesday night, departing on Thursday. High
pressure builds in for the end of the week and the first half of
the weekend. Another front approaches the area Sunday into
Monday.
&&
.NEAR TERM /THROUGH TUESDAY NIGHT/...
A cold front is slowly working its way towards the region this
afternoon as its parent low pressure tracks far to our northwest
over Canada. Ahead of it, a warm and muggy day has developed with
temperatures rising well into the 80s and dew points in the low 70s.
This has helped plenty of instability to build, and with the front
approaching, scattered convection has developed. This has mainly
been to our west, but there have been a few showers and isolated
thunderstorms over our area also, and with time, the focus will
continue to shift east. Convective activity through the evening will
be very much spotty in nature. Instability is decent, but shear is
weak, and with the low pressure center so far northwest, lift is
also weak. For those reasons, the severe weather potential is low,
though cannot rule out some gusty winds with the strongest cells.
The hydro risk also looks minimal today. Cell motions will not be
rapid, but they will be progressive enough, and perpendicular enough
to the frontal boundary, to limit the heavy rain risk. Since the
front remains to our west, activity could drag on pretty well into
the evening, but once daytime heating is lost, coverage and
intensity should gradually diminish. PoPs are in the chc range due
to the expected hit or miss coverage.
Overnight, the cold front will continue to slowly work
southeastward, making it through at least part of the area. The
coverage of any showers should continue to drop off, but can't rule
out a stray shower through most of the night. It will remain muggy
with lows only falling to the upper 60s and low 70s. Some patchy fog
is possible, but it does not look like a repeat of the more
widespread dense fog we had this morning. Mid-level clouds should be
extensive enough, and winds may stay up just enough, to keep fog
coverage as patchy at best, mainly in the typically prone spots.
For Tuesday, the front continues to slow down as it moves through,
and is likely to more or less stall across our southern zones. It
may even begin to push back north a bit by later in the day on
Tuesday. Mainly dry weather is expected Tuesday thanks to the front
being further south. It should be slightly cooler and less humid
overall as well. The warmth and humidity will remain greater over
Delmarva and southern New Jersey, closer to the front. This will
also contribute to a scattered shower or storm threat in our
southern zones, but even in those areas, the coverage looks spotty
at best.
Rainfall associated with the remnants of Ida will likely begin to
overspread the region on Tuesday night, especially late. However,
any impacts on Tuesday night should be minimal, and that system will
be covered in depth in the Short Term.
&&
.SHORT TERM /WEDNESDAY THROUGH THURSDAY/...
Summary: Heavy rainfall and flooding likely from Wednesday
afternoon into Thursday morning in association with the
remnants of Ida.
Overview: The remnant circulation of Ida will continue to lift
northward into into the Applachians on Wednesday, and will
likely at least partially phase with a northern stream shortwave
diving southward from the west as it does so. The system will
undergo extratropical transition as this happens, and may begin
to restrengthen somewhat as it comes to lie in the right
entrance region of a seasonably strong (130-150kt) UL jet over
the St.Lawrence valley. These ingredients will set the stage
for a heavy rainfall event over at least portions of our area as
rich tropical moisture (PWATS > 2.25 inches) interacts with
increasing synoptic lift associated with the jet and baroclinic
forcing.
Timing: Fairly good consensus that the heaviest and steadiest
precipitation will occur Wednesday evening through Thursday
morning. Can't rule out some storms during the day on Wednesday,
both of the diurnally-driven variety in the south and then also
along far western portions of our area as lead shortwave energy
rides along the stalled front from Tuesday. With the High
Pressure building in from the west and much drier air coming in
behind Ida, suspect precip will largely come to an end Thursday
morning but can't rule out it lingering near the coast into the
afternoon.
Rainfall accumulations: Given the expectations that the
circulation of Ida will remain somewhat robust (and not
deamplify enough to largely outrun the northern wave, like the
Canadian suggests), this would favor the northern half of our
area for the heaviest precipitation (closer to the better
synoptic forcing). Consequently there is the potential for
widespread 3-5 inch totals N&W of I-95, with even higher
amounts possible in localized areas. Widespread rainfall should
generally decrease further S&E with 2-4 inches expected around
I-95, and then down to 1-2 in southern Delmarva and far southern
NJ. The accumulation gradient could even be tighter if the
system amplifies to the extent the Euro depicts. The big
uncertainty with southern areas is if convective precipitation
can develop in the warm sector, as although the coverage may be
more limited some prodigious amounts could be possible given the
moisture available. Consequently did expand the Flash Flood
Watch to include southern Delmarva but the threat here is more
conditional than further north.
Severe potential: Given the current track there remains some
isolated tornado potential and severe wind gust potential,
generally S&E of I-95. Relatively strong SWrly wind fields
aloft will ride overtop initially backed low-lvl flow to create
a zone of enhanced 0-1km and 0-3km SRH near the vicinity of the
warm front. Although instability won't be too impressive,
500-1000 J/kg of MLCAPE will be sufficient to support rotating
updrafts given the shear profiles. The north-westward extent of
the severe threat area remains uncertain given the
uncertainties with the track of Ida's circulation/frontal
structure.
&&
.LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
High Pressure will build into the area Friday through at least
Saturday, with rather pleasant and dry weather expected as a
result. Dewpoints will drop well into the 50s, high
temperatures will remain largely in the 70s, and lows should dip
down into the 50s. By Sunday/Monday the High looks to slide
offshore with return flow developing and increasing moisture.
An approaching Canadian low/cold front will result in any least
some precip chances for the period, but uncertainty remains
high.
&&
.AVIATION /19Z MONDAY THROUGH SATURDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.
Through this evening... Prevailing VFR. Scattered showers and tstms
are possible in all areas across the region, but they will tend to
be quite hit or miss with coverage not very widespread. Southwest
wind 5 to 10 kt. High confidence overall, but which terminals, if
any, are directly impacted by showers and storms will come down more
to chance.
Later tonight... Showers and tstms will gradually decrease in
coverage, and mainly VFR conditions are expected. Some patchy fog
later tonight may bring localized VSBY restrictions, but fog should
not be nearly as dense or widespread as on Monday morning. Winds
mostly light and variable, but there should be a general
trend for a shift from southwest to northwest. Moderate confidence.
Tuesday... Mainly VFR. An isolated shower or tstm is possible mainly
over far southern New Jersey and Delmarva. Winds mostly northwest at
5 to 8 kt, but may be light and variable at times, and a southerly
component may develop near the coast in the afternoon. High
confidence.
Outlook...
Tuesday night... Initially, VFR. Rain may begin to overspread the
area from southwest to northeast late in the night, though most of
the night will probably stay VFR. Winds light and variable. Moderate
confidence.
Wednesday through Thursday...Extended periods of sub- VFR with
+RA and TSRA possible particularly Wednesday night into
Thursday morning. Winds NE 10-15 kt with gusts to 20 kt on
Wednesday, Wind directions then become variable as low pressure
passes Wednesday night but may be gusty at times. NNW winds on
Thursday 10-15kts with gusts 20-25kts. Overall, moderate
confidence.
Friday/Saturday...VFR with W-NW winds 5-10kts. High confidence.
&&
.MARINE...
Through Tuesday night... Sub-SCA conditions are expected. Scattered
showers and tstms possible late this afternoon through this evening,
and again on Tuesday afternoon. Southwest winds 10 to 15 kt through
most of tonight shifting to northwest late tonight and into Tuesday,
then back to southwest later Tuesday. Winds Tuesday may be light and
variable at times. Seas 2 to 3 ft.
Outlook...
Wednesday... Generally sub-SCA conditions through the day,
although winds and seas may begin to increase in the afternoon.
Wednesday night through Thursday night... SCA winds and seas
look likely with a chance of showers/thunderstorms particularly
Wednesday night into Thursday morning. Some of these storms
could produce strong winds, and even isolated waterspouts. An
outside shot at gales, but confidence in this is low. Seas
peaking 6-8ft on Thursday.
Friday/Saturday... Lingering 5ft seas possible but otherwise
conditions should drop below SCA criteria.
Rip Currents...
There is a LOW risk of rip currents through Tuesday.
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flash Flood Watch from Wednesday morning through Thursday
evening for PAZ054-055-060>062-070-071-101>106.
NJ...Flash Flood Watch from Wednesday morning through Thursday
evening for NJZ001-007>010-012>027.
DE...Flash Flood Watch from Wednesday morning through Thursday
evening for DEZ001>004.
MD...Flash Flood Watch from Wednesday morning through Thursday
evening for MDZ012-015-019-020.
MARINE...None.
&&
Synopsis...Carr
Near Term...O'Brien
Short Term...Carr
Long Term...Carr
Aviation...Carr/O'Brien
Marine...Carr/O'Brien
Hydrology...WFO PHIHazardous Weather Outlook National Weather Service Mount Holly NJ 0502 PM EDT Mon Aug 30 2021 DEZ001-312102- New Castle- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for New Castle County in Delaware. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ002-312102- Kent- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Kent County in Delaware. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ003-312102- Inland Sussex- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for inland portions of Sussex County in Delaware. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ004-312102- Delaware Beaches- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for the Atlantic coastal portions of Sussex County in Delaware. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ054-312102- Carbon- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Carbon County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ055-312102- Monroe- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Monroe County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ060-312102- Berks- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Berks County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ061-312102- Lehigh- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Lehigh County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ062-312102- Northampton- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Northampton County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ070-312102- Delaware- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Delaware County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ071-312102- Philadelphia- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Philadelphia County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ101-312102- Western Chester- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for western Chester County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ102-312102- Eastern Chester- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for eastern Chester County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ103-312102- Western Montgomery- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for western Montgomery County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ104-312102- Eastern Montgomery- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for eastern Montgomery County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ105-312102- Upper Bucks- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for upper Bucks County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ106-312102- Lower Bucks- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for lower Bucks County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ001-312102- Sussex- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Sussex County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ007-312102- Warren- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Warren County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ008-312102- Morris- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Morris County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ009-312102- Hunterdon- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Hunterdon County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ010-312102- Somerset- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Somerset County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ012-312102- Middlesex- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Middlesex County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ013-312102- Western Monmouth- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for western Monmouth County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ014-312102- Eastern Monmouth- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for eastern Monmouth County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ015-312102- Mercer- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Mercer County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ016-312102- Salem- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Salem County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ017-312102- Gloucester- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Gloucester County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ018-312102- Camden- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Camden County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ019-312102- Northwestern Burlington- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for northwestern Burlington County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ020-312102- Ocean- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for inland portions of Ocean County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ021-312102- Cumberland- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Cumberland County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ022-312102- Atlantic- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for inland portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ023-312102- Cape May- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Cape May County excluding the Atlantic coast in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ024-312102- Atlantic Coastal Cape May- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for the Atlantic coastal portions of Cape May County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ025-312102- Coastal Atlantic- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for coastal portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ026-312102- Coastal Ocean- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for coastal portions of Ocean County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ027-312102- Southeastern Burlington- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for southeastern Burlington County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ012-312102- Kent MD- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Kent County in Maryland. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ015-312102- Queen Annes- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Queen Annes County in Maryland. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ019-312102- Talbot- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Talbot County in Maryland. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ020-312102- Caroline- 0502 PM EDT Mon Aug 30 2021 This Hazardous Weather Outlook is for Caroline County in Maryland. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ430-312102- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 0502 PM EDT Mon Aug 30 2021 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. ANZ431-312102- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 0502 PM EDT Mon Aug 30 2021 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. ANZ450-312102- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- 0502 PM EDT Mon Aug 30 2021 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. ANZ451-312102- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- 0502 PM EDT Mon Aug 30 2021 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. ANZ452-312102- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- 0502 PM EDT Mon Aug 30 2021 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. ANZ453-312102- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- 0502 PM EDT Mon Aug 30 2021 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. ANZ454-312102- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- 0502 PM EDT Mon Aug 30 2021 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. ANZ455-312102- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 0502 PM EDT Mon Aug 30 2021 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.
Special Weather Statement
National Weather Service Mount Holly NJ
344 PM EDT Mon Aug 30 2021
DEZ001-NJZ016-302015-
New Castle DE-Salem NJ-
344 PM EDT Mon Aug 30 2021
...A strong thunderstorm will impact portions of northern New Castle
and western Salem Counties through 415 PM EDT...
At 343 PM EDT, Doppler radar was tracking a strong thunderstorm over
Glasgow, or near Newark, moving east at 20 mph.
HAZARD...Wind gusts up to 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Wilmington, Newark, Pennsville, Carneys Point, New Castle, Penns
Grove, Salem, Delaware City, Newport, Saint Georges, Mount Pleasant,
Stanton, Glasgow, Bear, Delaware Memorial Bridge, Port Penn,
Wilmington Manor, Hope Creek, Pike Creek and Brookside.
This includes the following highways...
Interstate 95 in Delaware between mile markers 0 and 12.
Interstate 295 in New Jersey between mile markers 0 and 6.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
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 3973 7541 3944 7548 3950 7578 3962 7579
3971 7579
TIME...MOT...LOC 1943Z 288DEG 17KT 3963 7573
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
GorseSpecial Weather Statement
National Weather Service Mount Holly NJ
346 PM EDT Mon Aug 30 2021
DEZ001-002-MDZ012-302015-
Kent DE-New Castle DE-Kent MD-
346 PM EDT Mon Aug 30 2021
...A strong thunderstorm will impact portions of southwestern New
Castle, northwestern Kent and northeastern Kent Counties through 415
PM EDT...
At 345 PM EDT, Doppler radar was tracking a strong thunderstorm near
Massey, or 12 miles southwest of Middletown, moving east at 20 mph.
HAZARD...Wind gusts up to 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Millington, Massey, Sassafras, Delaney Corner, Townsend and Galena.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
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 3937 7593 3936 7589 3937 7585 3938 7582
3938 7577 3941 7577 3942 7571 3922 7568
3930 7597 3936 7598
TIME...MOT...LOC 1945Z 275DEG 15KT 3932 7589
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
GorseSpecial Weather Statement
National Weather Service Mount Holly NJ
414 PM EDT Mon Aug 30 2021
DEZ001-002-MDZ012-302045-
Kent DE-New Castle DE-Kent MD-
414 PM EDT Mon Aug 30 2021
...A strong thunderstorm will impact portions of southwestern New
Castle, northern Kent and northeastern Kent Counties through 445 PM
EDT...
At 414 PM EDT, Doppler radar was tracking a strong thunderstorm over
Delaney Corner, or 10 miles south of Middletown, moving east at 15
mph.
HAZARD...Wind gusts up to 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Smyrna, Clayton, Cheswold, Sassafras, Delaney Corner, Woodland Beach,
Green Spring, Townsend, Kenton, Leipsic and Chambersville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
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 3938 7577 3942 7577 3944 7551 3920 7536
3922 7575 3925 7576 3924 7580 3938 7581
TIME...MOT...LOC 2014Z 279DEG 13KT 3930 7574
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
GorseSpecial Weather Statement
National Weather Service Mount Holly NJ
427 PM EDT Mon Aug 30 2021
MDZ012-015-302100-
Queen Anne's MD-Kent MD-
427 PM EDT Mon Aug 30 2021
...A strong thunderstorm will impact portions of northeastern Queen
Anne's and northeastern Kent Counties through 500 PM EDT...
At 426 PM EDT, Doppler radar was tracking a strong thunderstorm over
Morgnec, or 14 miles north of Centerville, moving east at 10 mph.
HAZARD...Wind gusts up to 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Chestertown, Millington, Sudlersville, Crumpton, Morgnec and
Kingstown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
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 3930 7604 3931 7577 3914 7575 3921 7607
TIME...MOT...LOC 2026Z 285DEG 11KT 3924 7600
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
GorseSpecial Weather Statement
National Weather Service Mount Holly NJ
448 PM EDT Mon Aug 30 2021
NJZ016-020>027-302115-
Coastal Atlantic NJ-Salem NJ-Cumberland NJ-Coastal Ocean NJ-Ocean NJ-
Atlantic NJ-Atlantic Coastal Cape May NJ-Cape May NJ-
Southeastern Burlington NJ-
448 PM EDT Mon Aug 30 2021
...Strong thunderstorms will impact portions of Atlantic, Cumberland,
southeastern Salem, southeastern Ocean, northern Cape May and
southeastern Burlington Counties through 515 PM EDT...
At 448 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Wading River to near Weymouth to Newport
Meadows. Movement was east at 20 mph.
HAZARD...Wind gusts up to 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Vineland, Atlantic City, Millville, Bridgeton, Ocean City,
Cumberland, Pleasantville, Hammonton, Somers Point, Ventnor City,
Brigantine, Northfield, Absecon, Margate City, Buena, Egg Harbor
City, Laurel Lake, Tuckerton, Weymouth and Woodbine.
This includes the following highways...
Garden State Parkway between mile markers 18 and 62.
Atlantic City Expressway between mile markers 0 and 25.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3939 7433 3914 7464 3942 7549 3953 7501
3951 7499 3970 7457 3968 7411
TIME...MOT...LOC 2048Z 283DEG 18KT 3965 7456 3954 7484 3941 7538
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
GorseThe Dover AFB radar (KDOX), 69 km away, was scanning. The volume nearest the first event began at 21:10 UTC.
2 thunderstorm wind. Local standard time, as filed.
A few trees were downed in Chestertown. Time estimated from radar.
A few trees were downed in the Kingstown area. Time estimated from radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maryland in 2021Every state in 2021This day in weather historyWarnings in Maryland, August 2021
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: 972268, 972270.