Alert archive / Pennsylvania / Areal Flood Advisories in 2021
Areal Flood Advisory 111, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Aug 10, 2021, 8:43 PM EDT for Delaware County, Montgomery County, Philadelphia County, Pennsylvania; Burlington County, Camden County, Gloucester County, New Jersey. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 10, 2021, 8:43 PM EDT (00:43 UTC)
- Expired
- Aug 10, 2021, 11:08 PM EDT
- In force
- 2 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 66 km from the middle of the area, began a volume at 00:46 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 00:00Z, 0.7 hours before the alert went out and 217 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
- 675 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 664 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 152 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
The text
As transmitted.
925
WGUS81 KPHI 110043
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
843 PM EDT Tue Aug 10 2021
NJC005-007-015-PAC045-091-101-110345-
/O.NEW.KPHI.FA.Y.0111.210811T0043Z-210811T0345Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Camden NJ-Gloucester NJ-Delaware PA-Montgomery PA-
Philadelphia PA-
843 PM EDT Tue Aug 10 2021
The National Weather Service in Mount Holly has issued a
* Flood Advisory for...
Western Burlington County in southern New Jersey...
Northwestern Camden County in southern New Jersey...
Northwestern Gloucester County in southern New Jersey...
Eastern Delaware County in southeastern Pennsylvania...
Southeastern Montgomery County in southeastern Pennsylvania...
Philadelphia County in southeastern Pennsylvania...
* Until 1145 PM EDT.
* At 843 PM EDT, Doppler radar indicated heavy rain due to
thunderstorms. Minor flooding is ongoing or expected to begin
shortly in the advisory area. Between 0.5 and 1 inch of rain has
fallen.
* Some locations that will experience flooding include...
Philadelphia, Camden, Gloucester City, Norristown, Chester,
Deptford, West Deptford, West Norriton, East Norriton, Bellmawr,
Yeadon, and Woodbury.
This includes the following highways...
Pennsylvania Turnpike between mile markers 328 and 338.
Interstate 95 in Pennsylvania between mile markers 4 and 33.
Interstate 76 in Pennsylvania between mile markers 328 and 351.
Interstate 76 in New Jersey between mile markers 0 and 3.
Interstate 295 in New Jersey between mile markers 15 and 28.
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.
LAT...LON 4003 7539 4005 7539 4007 7536 4007 7537
4006 7539 4010 7538 4014 7533 4013 7514
4010 7499 4008 7497 4006 7498 4005 7497
4006 7495 4004 7491 4000 7498 3993 7506
3984 7509 3981 7518 3980 7540
$$
Staarmann1 follow-up statement
724
WGUS81 KPHI 110308
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
1108 PM EDT Tue Aug 10 2021
NJC005-007-015-PAC045-091-101-110318-
/O.CAN.KPHI.FA.Y.0111.000000T0000Z-210811T0345Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Camden NJ-Gloucester NJ-Delaware PA-Montgomery PA-
Philadelphia PA-
1108 PM EDT Tue Aug 10 2021
...FLOOD ADVISORY IS CANCELLED FOR WESTERN BURLINGTON, NORTHWESTERN
CAMDEN, NORTHWESTERN GLOUCESTER, EASTERN DELAWARE, SOUTHEASTERN
MONTGOMERY, AND PHILADELPHIA COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 4003 7539 4005 7539 4007 7536 4007 7537
4006 7539 4010 7538 4014 7533 4013 7514
4010 7499 4008 7497 4006 7498 4005 7497
4006 7495 4004 7491 4000 7498 3993 7506
3984 7509 3981 7518 3980 7540
$$
StaarmannWhat 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 10, 7:03 PM EDT, 1 hour 40 minutes earlier.
Area forecast discussion, Aug 10, 7:03 PM EDT, 1 hour 40 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
703 PM EDT Tue Aug 10 2021
.SYNOPSIS...
Bermuda high pressure will continue to influence our weather
into Friday. A cold front approaching from the northwest is
forecast to arrive on Saturday. The boundary is expected to
stall to the south of our region for Sunday into the early part
of the new week as high pressure builds across New York and New
England.
&&
.NEAR TERM /THROUGH WEDNESDAY/...
Multiple rounds of thunderstorms, some severe, have been affecting
the region late this afternoon and early this evening. Activity now
entering eastern PA and the Chesapeake region may hold together at
least in some form for another few hours, though CAM guidance is
insistent it should begin to weaken/dissipate at any time. Given
plenty of instability still ahead of it, seems unlikely it will fall
apart all at once, but it will be outrunning the already limited
forcing, and shear is limited. Once the Sun goes down and starts to
cut down on the instability, that is probably when we will see a
more pronounced weakening trend. Additional activity over New Jersey
will be moving offshore towards the sunset hour, but poses a
continued risk for gusty, but sub-severe, wind until then. By the
midnight hour, expect dry conditions to prevail across the region.
Very mild and humid overnight with patchy fog. Light south to
southwest winds.
Wednesday...Heat headlines remain in place. Sunny, hot and
humid with highs in the 90s most areas and upper 80s (only) at
the shore and NW higher areas. Mostly dry early then a few sct
showers/tstms for the afternoon. Slight chc pops for NJ shore
areas and ern DE with small chc pops for PA, north NJ and ern
shore areas of MD. Apparent temps in the 90s for shore areas and
NW hills and low 100s for most other areas.
&&
.SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY/...
The Excessive Heat Warning and Heat Advisory for Wednesday
night and Thursday remain in effect.
The mid level wave associated with the convection in Missouri
and vicinity this afternoon should reach our region on Wednesday
night. Scattered to isolated showers and thunderstorms are
possible at that time. However, the activity may weaken a bit
with the loss of daylight.
Even though Thursday should be the peak of the heat and
humidity, a fairly strong cap is anticipated. As a result,
showers and thunderstorms are expected to be limited. We may see
some remnant convection approach and enter our northwestern
counties late in the day but is should weaken during the
nighttime hours.
High temperatures on Thursday will favor the 90s with heat
index values in excess of 100 at most locations.
Friday is anticipated to be almost as hot and humid as
Thursday. It seems likely that we will need to extend the
Excessive Heat Warning and the Heat Advisory for another day, as
we get closer in time.
It appears as though there will be a slightly better potential
for convection on Friday than on Thursday as the cap weakens a
little. The chance of precipitation seems better in the terrain
of eastern Pennsylvania and northern New Jersey than at points
to the southeast.
&&
.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
A cold front is forecast to approach from the northwest on
Saturday and it should pass through our region on Saturday
night. The excessive heat and humidity will begin to get knocked
back at that time. It should also present our best potential
for widespread showers and thunderstorms.
The frontal boundary will likely stall to our south across
southeastern Maryland, southern Virginia and the adjacent waters
for Sunday through Tuesday. Meanwhile, high pressure is
anticipated to build across New York and New England. The
pattern will maintain a chance of showers and thunderstorms
across parts of eastern Maryland, Delaware and far southern New
Jersey through the period. The potential for precipitation may
begin to lift slowly back to the north in a developing return
flow as we get into the new week.
Temperatures and humidity levels are expected to be on the
decrease, with highs settling into the 80s with lows mainly in
the 60s.
&&
.AVIATION /23Z TUESDAY THROUGH SUNDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.
Through tonight... Prevailing VFR, but localized restrictions
possible as showers/tstms slowly diminish thru 02Z/03Z. Decreasing
clouds later tonight. Patchy fog development is possible, but does
not look like it will be very widespread or dense as winds may stay
up just enough to prevent fog. Have included some MVFR TEMPO groups
at a few of the terminals. Winds S to SSW at 5 to 7 kt, but may be
light and variable at times. Erratic winds also possible near any
showers and storms through 03z. Moderate confidence overall.
Wednesday...VFR after patchy morning fog. Sct Cu mostly, few
showers possible late afternoon, but not in TAFS attm. SW winds
5 to 10 knots.
Outlook...
Thursday...Early morning low clouds and visibility restrictions
are possible, otherwise mainly VFR. Southwest around 10 knots.
Medium confidence.
Friday...Early morning low clouds and visibility restrictions
are possible, otherwise mainly VFR. A chance of afternoon and
evening showers and thunderstorms. Southwest around 10 knots.
Medium confidence.
Saturday...Early morning low clouds and visibility restrictions
are possible, otherwise mainly VFR. Afternoon and evening
showers and thunderstorms are likely. Southwest to west around
10 knots. Medium confidence.
Sunday...Early morning low clouds and visibility restrictions
are possible, otherwise mainly VFR. North to northeast wind 5 to
10 knots. Medium confidence.
&&
.MARINE...
Winds and seas will remain below SCA conditions although both
will increase this evening. Winds and seas along the nrn NJ
waters may approach SCA conditions with some gusts 20-25 knots
and seas 3 to 4 ft. Scattered showers and perhaps a tstm this
evening otherwise fair. sub-SCA and fair weather expected
Wednesday.
Outlook...
Thursday through Sunday...No marine headlines are anticipated.
Rip currents...
There is a low risk of rip currents through at least Wednesday.
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Excessive Heat Warning from noon Wednesday to 8 PM EDT
Thursday for PAZ070-071-101>106.
Heat Advisory from noon Wednesday to 8 PM EDT Thursday for
PAZ060>062.
NJ...Excessive Heat Warning from noon Wednesday to 8 PM EDT
Thursday for NJZ008>010-012-013-015-017>020-027.
Heat Advisory from noon Wednesday to 8 PM EDT Thursday for
NJZ001-007-014-016-021-022-026.
DE...Excessive Heat Warning from noon Wednesday to 8 PM EDT
Thursday for DEZ001.
Heat Advisory from noon Wednesday to 8 PM EDT Thursday for
DEZ002-003.
MD...Heat Advisory from noon Wednesday to 8 PM EDT Thursday for
MDZ012-015-019-020.
MARINE...None.
&&
Synopsis...Iovino
Near Term...O'Brien/O'Hara
Short Term...Iovino
Long Term...Iovino
Aviation...Iovino/O'Brien/O'Hara
Marine...Iovino/O'HaraHazardous weather outlook, Aug 10, 4:56 PM EDT, 3 hours 47 minutes before
Hazardous Weather Outlook National Weather Service Mount Holly NJ 0456 PM EDT Tue Aug 10 2021 DEZ001-112056- New Castle- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for New Castle County in Delaware. .DAY ONE...Through tonight. Hot conditions could result in heat exhaustion with prolonged exposure. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke 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. DEZ002-112056- Kent- 0456 PM EDT Tue Aug 10 2021 This Hazardous Weather Outlook is for Kent County in Delaware. .DAY ONE...Through tonight. Minor coastal flooding is possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. 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. DEZ003-112056- Inland Sussex- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. 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. DEZ004-112056- Delaware Beaches- 0456 PM EDT Tue Aug 10 2021 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...Wednesday through Monday. 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. PAZ054-112056- Carbon- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. 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. PAZ055-112056- Monroe- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. 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. PAZ060-112056- Berks- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. 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. PAZ061-112056- Lehigh- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. 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. PAZ062-112056- Northampton- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. 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. PAZ070-112056- Delaware- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke 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. PAZ071-112056- Philadelphia- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke 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. PAZ101-112056- Western Chester- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke 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. PAZ102-112056- Eastern Chester- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. 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. PAZ103-112056- Western Montgomery- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke 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. PAZ104-112056- Eastern Montgomery- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke 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. PAZ105-112056- Upper Bucks- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. 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. PAZ106-112056- Lower Bucks- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke 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. NJZ001-112056- Sussex- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. 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. NJZ007-112056- Warren- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. 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. NJZ008-112056- Morris- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. 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. NJZ009-112056- Hunterdon- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke 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. NJZ010-112056- Somerset- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could quickly result in heat exhaustion or heat stroke on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke 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. NJZ012-112056- Middlesex- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke 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. NJZ013-112056- Western Monmouth- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke 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. NJZ014-112056- Eastern Monmouth- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. 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. NJZ015-112056- Mercer- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke 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. NJZ016-112056- Salem- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. 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. NJZ017-112056- Gloucester- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke 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. NJZ018-112056- Camden- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke 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. NJZ019-112056- Northwestern Burlington- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke 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. NJZ020-112056- Ocean- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. 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. NJZ021-112056- Cumberland- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. 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. NJZ022-112056- Atlantic- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. 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. NJZ023-112056- Cape May- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. 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. NJZ024-112056- Atlantic Coastal Cape May- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. 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. NJZ025-112056- Coastal Atlantic- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. 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. NJZ026-112056- Coastal Ocean- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. 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. NJZ027-112056- Southeastern Burlington- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Dangerously hot conditions could result in heat exhaustion or heat stroke with prolonged exposure on Thursday. Dangerously hot conditions could result in heat exhaustion or heat stroke 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. MDZ012-112056- Kent MD- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. 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. MDZ015-112056- Queen Annes- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. 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. MDZ019-112056- Talbot- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. 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. MDZ020-112056- Caroline- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. Hot conditions could result in heat exhaustion with prolonged exposure on Wednesday. Hot conditions could result in heat exhaustion with prolonged exposure on Thursday. 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. ANZ430-112056- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. 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. ANZ431-112056- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. 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. ANZ450-112056- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. 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. ANZ451-112056- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. 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. ANZ452-112056- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. 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. ANZ453-112056- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. 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. ANZ454-112056- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. 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. ANZ455-112056- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 0456 PM EDT Tue Aug 10 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...Wednesday through Monday. 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
Local storm report, Aug 10, 8:33 PM EDT, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
833 PM EDT TUE AUG 10 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0805 PM TSTM WND GST WEST GROVE 39.86N 75.84W
08/10/2021 M55 MPH CHESTER PA MESONET
DEOS GAUGE.
&&
JEOLocal storm report, Aug 10, 8:34 PM EDT, 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
834 PM EDT TUE AUG 10 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0804 PM TSTM WND GST 1 NNE PENN TWP 39.84N 75.88W
08/10/2021 M51 MPH CHESTER PA PUBLIC
CWOP SITE AV669.
&&
JEOLocal storm report, Aug 10, 8:35 PM EDT, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
835 PM EDT TUE AUG 10 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0747 PM TSTM WND DMG 1 NW WEST MARLBOROUGH T 39.92N 75.83W
08/10/2021 CHESTER PA FIRE DEPT/RESCUE
TREES AND WIRES DOWN ON DOE RUN RD. TIME
ESTIMATED FROM RADAR.
&&
JEOLocal storm report, Aug 10, 8:37 PM EDT, 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
837 PM EDT TUE AUG 10 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0805 PM TSTM WND DMG 1 SSE RIDLEY PARK 39.87N 75.32W
08/10/2021 DELAWARE PA FIRE DEPT/RESCUE
TREE AND WIRES DOWN NEAR SELLERS AVE AT
INDUSTRIAL HIGHWAY. TIME ESTIMATED FROM
RADAR.
&&
JEOLocal storm report, Aug 10, 8:41 PM EDT, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
841 PM EDT TUE AUG 10 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0835 PM TSTM WND GST 1 WSW PHILADELPHIA INTE 39.87N 75.24W
08/10/2021 M56 MPH PHILADELPHIA PA OTHER FEDERAL
ITWS SENSOR AT PHILADELPHIA INTERNATIONAL
AIRPORT.
&&
JEOSpecial weather statement, Aug 10, 8:43 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
843 PM EDT Tue Aug 10 2021
DEZ002-003-MDZ019-020-110115-
Inland Sussex DE-Kent DE-Talbot MD-Caroline MD-
843 PM EDT Tue Aug 10 2021
...Strong thunderstorms will impact portions of northwestern Sussex,
southern Kent, southeastern Talbot and southern Caroline Counties
through 915 PM EDT...
At 842 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending near Harrington. Movement was east at 20 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Milford, Denton, Harrington, Federalsburg, Bridgeville, Trappe,
Preston, Tanyard, Harmony, Smithville, Agner, Choptank, Big Stone
Beach, Windyhill, Andrewsville, Felton, Greenwood, Frederica, Houston
and Farmington.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3859 7606 3863 7608 3863 7613 3903 7564
3901 7528 3865 7572 3869 7577 3868 7580
3870 7580 3871 7584 3870 7590 3868 7594
3860 7599 3857 7603
TIME...MOT...LOC 0042Z 280DEG 16KT 3898 7563 3859 7611
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
SFJThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 8:02 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 43 min |
| Aug 10, 8:18 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery | 42 min |
| Aug 10, 8:36 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 39 min |
| Aug 11, 2:56 PM EDT | Excessive Heat Watch | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 12 hr |
| Aug 11, 4:46 PM EDT | Special Weather Statement | PHI | Monroe | 44 min |
| Aug 11, 4:58 PM EDT | Special Weather Statement | PHI | Berks | 47 min |
| Aug 11, 5:20 PM EDT | Areal Flood Advisory | PHI | Carbon, Monroe | 57 min |
| Aug 11, 5:48 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 57 min |
| Aug 11, 6:16 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh, Montgomery | 44 min |
| Aug 11, 6:26 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Delaware, Montgomery | 49 min |
| Aug 11, 6:48 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Montgomery, Northampton | 42 min |
| Aug 11, 6:50 PM EDT | Areal Flood Advisory | PHI | Monroe, Northampton | 3 hr |
| Aug 11, 7:04 PM EDT | Areal Flood Advisory | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 2 hr |
| Aug 11, 7:11 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 49 min |
| Aug 10, 8:23 PM EDT | Special Marine Warning | PHI | 79 min | |
| Aug 10, 9:07 PM EDT | Special Weather Statement | PHI | Burlington, Camden, Cumberland | 23 min |
| Aug 11, 5:57 PM EDT | Special Weather Statement | PHI | Sussex | 48 min |
| Aug 11, 6:32 PM EDT | Special Weather Statement | PHI | Morris, Sussex, Warren | 28 min |
| Aug 11, 7:04 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 41 min |
| Aug 11, 7:28 PM EDT | Flash Flood Warning | PHI | Morris, Warren | 3 hr |
| Aug 11, 7:45 PM EDT | Special Weather Statement | PHI | Morris | 45 min |
| Aug 11, 7:52 PM EDT | Special Weather Statement | PHI | Atlantic, Burlington, Camden, Gloucester, Mercer | 53 min |
| Aug 11, 7:57 PM EDT | Special Weather Statement | PHI | Hunterdon, Middlesex, Somerset | 48 min |
Nearby
Areal Flood Advisories in Pennsylvania, 2021Areal Flood Advisories in New Jersey, 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.