Alert archive / Pennsylvania / Areal Flood Advisories in 2021
Areal Flood Advisory 148, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Aug 26, 2021, 7:29 PM EDT for Carbon County, Pennsylvania. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 26, 2021, 7:29 PM EDT (23:29 UTC)
- Expired
- Aug 26, 2021, 9:42 PM EDT
- In force
- 2 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Carbon County, PA
The radar
The Binghamton radar (KBGM), 150 km from the middle of the area, began a volume at 23:29 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 11.5 hours before the alert went out and 240 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 844 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 1230 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
592
WGUS81 KPHI 262329
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
729 PM EDT Thu Aug 26 2021
PAC025-270230-
/O.NEW.KPHI.FA.Y.0148.210826T2329Z-210827T0230Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Carbon PA-
729 PM EDT Thu Aug 26 2021
The National Weather Service in Mount Holly has issued a
* Flood Advisory for...
Southern Carbon County in northeastern Pennsylvania...
* Until 1030 PM EDT.
* At 729 PM EDT, Doppler radar indicated heavy rain due to
thunderstorms. Minor flooding is ongoing or expected to begin
shortly in the advisory area. Between 2 and 3 inches of rain has
already fallen with up to 1 inch of additional rainfall possible.
* Some locations that may experience flooding include...
Lehighton, Palmerton, Jim Thorpe, Nesquehoning, Weatherly,
Beltzville State Park, Lansford, Summit Hill, Bowmanstown, Beaver
Meadows, Parryville, and Weissport.
This includes the following highways...
Northeast Extension between mile markers 74 and 81.
LAT...LON 4092 7569 4092 7566 4090 7562 4088 7561
4086 7560 4083 7559 4081 7558 4080 7561
4080 7567 4079 7571 4080 7574 4081 7577
4081 7588 4091 7600 4096 7586 4097 7585
$$
Davis1 follow-up statement
575
WGUS81 KPHI 270142
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
942 PM EDT Thu Aug 26 2021
PAC025-270152-
/O.CAN.KPHI.FA.Y.0148.000000T0000Z-210827T0230Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Carbon PA-
942 PM EDT Thu Aug 26 2021
...FLOOD ADVISORY IS CANCELLED FOR SOUTHERN CARBON COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 4092 7569 4092 7566 4090 7562 4088 7561
4086 7560 4083 7559 4081 7558 4080 7561
4080 7567 4079 7571 4080 7574 4081 7577
4081 7588 4091 7600 4096 7586 4097 7585
$$
DealWhat forecasters said that day
The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this areal flood advisory went out at Aug 26, 5:53 PM EDT, 1 hour 36 minutes earlier.
Area forecast discussion, Aug 26, 5:53 PM EDT, 1 hour 36 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
553 PM EDT Thu Aug 26 2021
.SYNOPSIS...
High pressure remains centered offshore just southeast of the
region. A cold front will begin to approach from the north on Friday
and slowly work its way through the region over the weekend, before
returning north as a warm front early next week. Another cold front
may approach by Tuesday as low pressure tracks well to our
northwest. Moisture associated with Tropical Depression Nine may
also impact the region by later next week.
&&
.NEAR TERM /THROUGH FRIDAY/...
Increased PoPs for this afternoon based on the expansive cumulus
field and slightly earlier timing in convective initiation.
Still appears that synoptic scale lift is limited, so do not
expect widespread coverage, but scattered storms are expected to
continue through early this evening. With weak steering flow
and deep-layer shear, storms should be disorganized and short-
lived but may also be rather potent given the sufficiently dry
midlevels (though not terribly dry; PWs still generally 1.6-1.8
inches). The primary hazards will be downbursts/gusty winds and
localized heavy rain.
Any convection should diminish quickly with the loss of daytime
heating, with another warm/humid night with patchy fog to
follow.
By Friday afternoon, a more pronounced mid level shortwave
trough will approach from the west. It will likely stay well
west of our region through the day, so coverage may be limited
during the day time hours. As with today, shear will be limited,
but there will remain a heavy rain and downburst potential.
Heat and humidity will continue into tomorrow. Temperature and
dew points should be similar to today, so not planning any
changes to the heat advisory at this time.
&&
.SHORT TERM /FRIDAY NIGHT THROUGH SATURDAY NIGHT/...
An active period of weather is likely Friday night into Saturday. At
the surface, a weak and slow moving frontal boundary will continue
to sag southward through the region. Aloft, at least one
convectively enhanced shortwave disturbance appears likely to track
along the front during Friday night. Weakly forced convection will
already be ongoing Friday afternoon, but the approach of the
shortwave will bring better forcing during the overnight hours. This
could cause convection to continue, and potentially even increase in
coverage, well into the overnight. From there, it will really be a
matter of mesoscale and smaller processes which will determine how
the threat evolves into the day on Saturday. But with the front
remaining nearby and a high likelihood for remnant outflow
boundaries in the area, additional rounds of showers and storms
appear probable, with the focus tending to shift more southward with
time. By Saturday night, the surface front will shift south of us,
forcing will diminish, and the atmosphere will likely be quite
overturned. So we should trend towards dry weather
Overall, this is a concerning setup from a hydro perspective. In
terms of moisture, PWAT values will be at or above 2 inches
throughout this period, a long time for values to be that high. Dew
points will be in the low to even mid 70s. The wind profiles are
also worth mentioning, with weak and largely boundary-parallel shear
vectors favoring both slow moving and training storms. Corfidi
upshear vectors are very slow (5 to 10 kt) and even the downshear
vectors are quite slow (10 to 15 kt) over most of the area for this
period. And needless to say, despite us having a couple days to dry
out so far this week, we have had plenty of rain this month and
flash flood guidance remains very low overall.
Having said all that, it seems likely that at least localized, if
not fairly widespread, flash flooding will occur during this period.
Have gone ahead and issued a Flash Flood Watch for much of the area.
Have left off both the far northern zones, where the signal for high
QPF is weaker, and the far southern zones, where FFG is much higher.
But much of the area will be at risk for flash flooding to start the
weekend. The Watch is fairly long in duration, and will run from
Friday afternoon through late Saturday night.
Otherwise, with the approach of the front and the widespread
convection, we will at least break the heat on Saturday with highs
mostly in the low to mid 80s, though with tropical levels of
humidity. The overnight periods will be unseasonably warm and stuffy
given the abundance of moisture in the air mass.
&&
.LONG TERM /SUNDAY THROUGH THURSDAY/...
Overview...
Unsettled conditions appear likely to continue well into next week.
In the mid-levels, Northeast US ridging will steadily break down as
a robust shortwave trough digs into southern Ontario. Strengthening
surface low pressure will track far northwest of the region early
next week, sending a cold front slowly in our direction. Meanwhile,
the weak frontal boundary from over the weekend will also likely
remain in the area into early next week, though there is some
indication now that it may remain mostly to our south. Finally, a
good deal of model guidance is now suggesting that moisture
associated with TD 9 could affect the area by mid to late next week
as it potentially begins to interact with the frontal system. With
all of this going on, most days for the foreseeable future will
continue to see at least a chance of showers and thunderstorms
in portions of the region. Coverage and intensity will vary day
by day, and confidence in daily details is not especially high.
It continues to look like hydro concerns will outweigh severe as
shear remains weak and PWATs remain anomalously high.
Dailies...
Sunday-Sunday night... Latest trends for Sunday are a bit more
optimistic, as most guidance now suggests the first cold front
staying to the south of the region rather than lifting back north.
This is due to high pressure over New England pushing further south
than previously expected. With that front being so weak, it will
still be fairly warm and humid over the region, so cannot rule out
some weakly forced showers and storms. But PoPs are quite low now
for Sunday, only in the slgt chc to low end chc range, and suspect
it will be a mainly dry day overall, with mostly quiet weather
for the overnight as well.
Monday-Tuesday... For the start of the new work week, we will be
watching the approach of the next cold front moving in from the
west. This front will likely bring a chance of showers and storms to
the region, especially western areas, by Monday. Like many fronts
we've seen this warm season, this front also appears likely to slow
down on approach and remain near the area into Tuesday. By then, the
focus for convection should shift southward and coverage will more
likely be less than on Monday. With the parent low for this front
and its better shear/forcing tracking so far northwest of us, severe
weather looks unlikely, but we may have to monitor for hydro
concerns as the air mass remains warm and humid.
Wednesday-Thursday... Towards mid next week, attention may turn to
what remains of Tropical Depression Nine. Models are in fairly good
agreement on taking it into the northern Gulf Coast as a hurricane,
reflected in the NHC forecast. From there, it seems likely to curve
northeastward, and may begin interacting with the frontal system
discussed for Monday and Tuesday. Should these features interact
favorably, a heavy rain event would be possible, as some model
guidance suggests. Not surprisingly, however, high uncertainty
remains given the time range, and this will just be something to
watch over the next several days.
&&
.AVIATION /22Z THURSDAY THROUGH TUESDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.
This afternoon...Prevailing VFR conditions likely, but MVFR
conditions will be possible in the vicinity of any showers and
thunderstorms that develop. Expanded the mention of -TSRA with
the 18Z TAFs based on current satellite and radar trends, but it
still appears that the primary period will be through 23Z.
Winds southwest around 5 kt, with sea/bay breeze influence
likely at ILG/ACY and possible at MIV. Moderate confidence on
the overall pattern, but low confidence on the exact timing of
any tsra impacts at TAF sites.
Tonight...Starting VFR, but fog is likely after 06Z. At this
point, have only included MVFR visibility restrictions in the
TAFs, but would not be surprised to see localized IFR conditions.
Winds light and variable. Moderate confidence on the overall
pattern but low confidence on the extent and how dense the fog
will be.
Friday...Once the morning fog dissipates, should have VFR
conditions for most of the day time hours. Showers and
thunderstorms may begin to move into the area after 18Z, but
uncertain if any TAF site will see impacts before 00Z. Winds
light and variable but should generally be favoring the
southerly direction. Moderate confidence on the overall
pattern, but low confidence on timing details.
Outlook...
Friday night-Saturday night... Periodic restrictions to sub-VFR
conditions are likely. Numerous showers and thunderstorms are likely
to be in the area for much of this period. In addition, during the
overnight hours, areas not experiencing rain may also deal with fog.
Winds light and variable Friday night, then favoring an easterly or
northeasterly direction at 5 to 10 kt Saturday and Saturday night.
Erratic winds are likely at times especially near areas of tstms.
Moderate confidence.
Sunday-Sunday night... Prevailing VFR. Some lingering fog possible
Sunday morning. A shower or tstm is possible but with generally less
areal coverage than prior days. Winds shifting from northeast to
southeast at 5 to 10 kt, eventually becoming light and variable
overnight. Moderate confidence.
Monday-Monday night... Prevailing VFR. Scattered afternoon and
evening showers and tstms possible. Winds becoming southwest at 5 to
10 kt, then light and variable overnight. Moderate confidence.
Tuesday-Tuesday night... Prevailing VFR. Scattered afternoon and
evening showers and tstms possible. Winds becoming northwest at 5 to
10 kt, then light and variable overnight. Moderate confidence.
&&
.MARINE...
Winds and seas should stay below Small Craft Advisory criteria
through Friday. Wind direction prevailing out of the southwest
and south through the period.
Outlook...
Friday night-Saturday night... Mainly sub-SCA conditions are
expected.
Sunday-Tuesday... No marine headlines are anticipated. Light winds
with several wind shifts. Occasional showers and tstms are likely.
Seas 2 to 4 ft.
Rip Currents...
There is a LOW risk of rip currents through Friday.
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flash Flood Watch from Friday afternoon through late Saturday
night for PAZ060>062-070-071-101>106.
Heat Advisory until 8 PM EDT Friday for PAZ070-071-102>106.
NJ...Flash Flood Watch from Friday afternoon through late Saturday
night for NJZ007>010-012>022-026-027.
Heat Advisory until 8 PM EDT Friday for NJZ009-010-012>015-
017>020-026-027.
DE...Flash Flood Watch from Friday afternoon through late Saturday
night for DEZ001.
Heat Advisory until 8 PM EDT Friday for DEZ001.
MD...None.
MARINE...None.
&&
Synopsis...O'Brien
Near Term...Johnson
Short Term...O'Brien
Long Term...O'Brien
Aviation...Johnson/O'Brien
Marine...Johnson/O'BrienHazardous weather outlook, Aug 26, 4:56 PM EDT, 2 hours 33 minutes before
Hazardous Weather Outlook National Weather Service Mount Holly NJ 0456 PM EDT Thu Aug 26 2021 DEZ001-272056- New Castle- 0456 PM EDT Thu Aug 26 2021 This Hazardous Weather Outlook is for New Castle County in Delaware. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ002-272056- Kent- 0456 PM EDT Thu Aug 26 2021 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...Friday through Wednesday. 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Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ105-272056- Upper Bucks- 0456 PM EDT Thu Aug 26 2021 This Hazardous Weather Outlook is for upper Bucks County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ106-272056- Lower Bucks- 0456 PM EDT Thu Aug 26 2021 This Hazardous Weather Outlook is for lower Bucks County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ001-272056- Sussex- 0456 PM EDT Thu Aug 26 2021 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...Friday through Wednesday. 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. 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Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ013-272056- Western Monmouth- 0456 PM EDT Thu Aug 26 2021 This Hazardous Weather Outlook is for western Monmouth County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ014-272056- Eastern Monmouth- 0456 PM EDT Thu Aug 26 2021 This Hazardous Weather Outlook is for eastern Monmouth County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ015-272056- Mercer- 0456 PM EDT Thu Aug 26 2021 This Hazardous Weather Outlook is for Mercer County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. 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Heat Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ018-272056- Camden- 0456 PM EDT Thu Aug 26 2021 This Hazardous Weather Outlook is for Camden County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ019-272056- Northwestern Burlington- 0456 PM EDT Thu Aug 26 2021 This Hazardous Weather Outlook is for northwestern Burlington County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ020-272056- Ocean- 0456 PM EDT Thu Aug 26 2021 This Hazardous Weather Outlook is for inland portions of Ocean County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ021-272056- Cumberland- 0456 PM EDT Thu Aug 26 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...Friday through Wednesday. 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. NJZ022-272056- Atlantic- 0456 PM EDT Thu Aug 26 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...Friday through Wednesday. 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. NJZ023-272056- Cape May- 0456 PM EDT Thu Aug 26 2021 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...Friday through Wednesday. 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. NJZ024-272056- Atlantic Coastal Cape May- 0456 PM EDT Thu Aug 26 2021 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...Friday through Wednesday. 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. NJZ025-272056- Coastal Atlantic- 0456 PM EDT Thu Aug 26 2021 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...Friday through Wednesday. 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. NJZ026-272056- Coastal Ocean- 0456 PM EDT Thu Aug 26 2021 This Hazardous Weather Outlook is for coastal portions of Ocean County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ027-272056- Southeastern Burlington- 0456 PM EDT Thu Aug 26 2021 This Hazardous Weather Outlook is for southeastern Burlington County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ012-272056- Kent MD- 0456 PM EDT Thu Aug 26 2021 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...Friday through Wednesday. 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. MDZ015-272056- Queen Annes- 0456 PM EDT Thu Aug 26 2021 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...Friday through Wednesday. 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. MDZ019-272056- Talbot- 0456 PM EDT Thu Aug 26 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...Friday through Wednesday. Hot conditions could result in heat exhaustion with prolonged exposure on Friday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ020-272056- Caroline- 0456 PM EDT Thu Aug 26 2021 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...Friday through Wednesday. 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. ANZ430-272056- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 0456 PM EDT Thu Aug 26 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...Friday through Wednesday. 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. ANZ431-272056- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 0456 PM EDT Thu Aug 26 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...Friday through Wednesday. 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. ANZ450-272056- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- 0456 PM EDT Thu Aug 26 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...Friday through Wednesday. 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. ANZ451-272056- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- 0456 PM EDT Thu Aug 26 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...Friday through Wednesday. 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. ANZ452-272056- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- 0456 PM EDT Thu Aug 26 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...Friday through Wednesday. 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. ANZ453-272056- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- 0456 PM EDT Thu Aug 26 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...Friday through Wednesday. 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. ANZ454-272056- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- 0456 PM EDT Thu Aug 26 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...Friday through Wednesday. 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. ANZ455-272056- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 0456 PM EDT Thu Aug 26 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...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures.
In the hours before
Special weather statement, Aug 26, 5:02 PM EDT, 2 hours 27 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
502 PM EDT Thu Aug 26 2021
PAZ054-055-262130-
Monroe PA-Carbon PA-
502 PM EDT Thu Aug 26 2021
...A strong thunderstorm will impact portions of northeastern Carbon
and west central Monroe Counties through 530 PM EDT...
At 502 PM EDT, Doppler radar was tracking a strong thunderstorm over
Pocono Raceway, or 8 miles southwest of Mount Pocono, moving
southeast at 10 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...
Mount Pocono, Scotrun, Blakeslee, Long Pond, Pocono Pines, Pocono
Raceway, Lake Harmony, Sun Valley, Jonas and Meckesville.
This includes the following highways...
Interstate 80 in Pennsylvania between mile markers 286 and 302.
Interstate 380 in Pennsylvania between mile markers 0 and 3.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
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 4110 7562 4116 7554 4108 7523 4094 7554
TIME...MOT...LOC 2102Z 308DEG 7KT 4105 7549
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
GorseSpecial weather statement, Aug 26, 5:29 PM EDT, 2 hours before
Special Weather Statement
National Weather Service Mount Holly NJ
529 PM EDT Thu Aug 26 2021
PAZ055-262200-
Monroe PA-
529 PM EDT Thu Aug 26 2021
...A strong thunderstorm will impact portions of central Monroe
County through 600 PM EDT...
At 529 PM EDT, Doppler radar was tracking a strong thunderstorm over
Pocono Pines, or near Mount Pocono, moving southeast at 10 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...
Mount Pocono, Tobyhanna, Reeders, Henryville, Pocono Pines, Pocono
Raceway, McMichael, Tannersville, Alpine Mountain, Scotrun, Long
Pond, Paradise Valley, Cresco and Bartonsville.
This includes the following highways...
Interstate 80 in Pennsylvania between mile markers 290 and 305.
Interstate 380 in Pennsylvania between mile markers 0 and 9.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
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 4110 7558 4120 7548 4114 7516 4092 7535
TIME...MOT...LOC 2129Z 301DEG 8KT 4109 7544
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
GorseSpecial weather statement, Aug 26, 5:35 PM EDT, 1 hour 54 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
535 PM EDT Thu Aug 26 2021
PAZ054-262200-
Carbon PA-
535 PM EDT Thu Aug 26 2021
...A strong thunderstorm will impact portions of central Carbon
County through 600 PM EDT...
At 535 PM EDT, Doppler radar was tracking a strong thunderstorm near
Jim Thorpe, or 7 miles north of Lehighton, moving southeast at 10
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...
Lehighton, Jim Thorpe, Nesquehoning, Weatherly, Christmans, Beaver
Meadows, Weissport, Tresckow and Weissport East.
This includes Northeast Extension between mile markers 82 and 90.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
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 4100 7556 4079 7573 4091 7599 4098 7582
4098 7580 4101 7573 4103 7574 4104 7576
4105 7574
TIME...MOT...LOC 2135Z 301DEG 8KT 4094 7573
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
GorseSpecial weather statement, Aug 26, 5:59 PM EDT, 1 hour 30 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
559 PM EDT Thu Aug 26 2021
PAZ054-262230-
Carbon PA-
559 PM EDT Thu Aug 26 2021
...A strong thunderstorm will impact portions of central Carbon
County through 630 PM EDT...
At 558 PM EDT, Doppler radar was tracking a strong thunderstorm near
Christmans, or 7 miles north of Lehighton, moving east at 10 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...
Jim Thorpe, Weatherly, Albrightsville, Beltzville State Park, Lake
Harmony, Christmans, Meckesville and Weissport East.
This includes the following highways...
Northeast Extension between mile markers 77 and 93.
Interstate 80 in Pennsylvania between mile markers 282 and 286.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
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 4110 7561 4109 7561 4103 7554 4095 7556
4095 7557 4081 7561 4093 7585 4099 7578
4101 7573 4103 7574 4111 7564
TIME...MOT...LOC 2158Z 291DEG 8KT 4094 7570
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
GorseSpecial weather statement, Aug 26, 6:14 PM EDT, 1 hour 15 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
614 PM EDT Thu Aug 26 2021
NJZ019-262245-
Northwestern Burlington NJ-
614 PM EDT Thu Aug 26 2021
...A strong thunderstorm will impact portions of northwestern
Burlington County through 645 PM EDT...
At 614 PM EDT, Doppler radar was tracking a strong thunderstorm over
Mount Holly, or 16 miles south of Trenton. This storm was nearly
stationary.
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...
Willingboro, Lumberton, Florence, Burlington, Mount Holly, Beverly,
Pemberton, Florence-Roebling, Jobstown, Jacksonville, Edgewater Park,
Nws Office, Pemberton Heights and Fort Dix.
This includes the following highways...
New Jersey Turnpike between exits 5 and 6A.
Interstate 295 in New Jersey between mile markers 44 and 53.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
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 3991 7478 4005 7494 4013 7477 3996 7463
TIME...MOT...LOC 2214Z 262DEG 3KT 3999 7479
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
GorseSpecial weather statement, Aug 26, 6:56 PM EDT, 33 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
656 PM EDT Thu Aug 26 2021
NJZ019-PAZ071-106-262330-
Northwestern Burlington NJ-Lower Bucks PA-Philadelphia PA-
656 PM EDT Thu Aug 26 2021
...A strong thunderstorm will impact portions of northwestern
Burlington and east central Philadelphia Counties through 730 PM
EDT...
At 655 PM EDT, Doppler radar was tracking a strong thunderstorm over
Riverside, or 9 miles east of Philadelphia, moving east at 10 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, Willingboro, Lumberton, Burlington, Bristol, Riverside,
Palmyra, Beverly, Andalusia, Cinnaminson, Edgewater Park, Delanco,
Riverton, Cornwells Heights-Eddington, Nws Office, Croydon and
Moorestown-Lenola.
This includes the following highways...
New Jersey Turnpike between exits 5 and 6.
Interstate 95 in Pennsylvania between mile markers 31 and 37.
Interstate 295 in New Jersey between mile markers 41 and 51.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
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 4000 7502 4009 7501 4010 7477 3994 7481
TIME...MOT...LOC 2255Z 275DEG 9KT 4004 7495
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
GorseThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 1:20 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 40 min |
| Aug 26, 3:30 PM EDT | Flash Flood Watch | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 48 hr |
| Aug 26, 5:02 PM EDT | Special Weather Statement | PHI | Monroe | 28 min |
| Aug 26, 5:29 PM EDT | Special Weather Statement | PHI | Monroe | 31 min |
| Aug 26, 5:35 PM EDT | Special Weather Statement | PHI | Carbon | 25 min |
| Aug 26, 5:59 PM EDT | Special Weather Statement | PHI | Carbon | 31 min |
| Aug 26, 6:09 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 51 min |
| Aug 26, 6:24 PM EDT | Areal Flood Advisory | PHI | Carbon | 3 hr |
| Aug 26, 6:56 PM EDT | Special Weather Statement | PHI | Philadelphia | 34 min |
Nearby
Areal Flood Advisories in Pennsylvania, 2021Every areal flood advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.