A frontal boundary stalled over the mid-Atlantic on July 22. An approaching upper level trough helped spur the development of a wave of low pressure along the front.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS PHI wrote it up.
A frontal boundary stalled over the mid-Atlantic on July 22. An approaching upper level trough helped spur the development of a wave of low pressure along the front. A very favorable environment for convection and severe weather developed along and south of this boundary. Extremely high moisture content was present in the air mass, allowing moderate to strong instability to build during the heating of the day. The frontal boundary and developing low also helped to enhance both low level and deep layer shear to respectably strong values for midsummer. The result was a day of widespread severe weather. Discrete storms early in the afternoon gave way to a powerful mesoscale convective system in the evening which produced widespread damaging winds with considerable damage over a large area.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Philadelphia/Mount Holly wrote its last area forecast discussion before the first event at Jul 22, 7:59 AM EST, 6 hours 8 minutes earlier.
Area Forecast Discussion
National Weather Service Mount Holly NJ
859 AM EDT Mon Jul 22 2019
.SYNOPSIS...
Low pressure will drift eastward across the Mid-Atlantic this
afternoon and evening. As the low continues toward Nova Scotia on
Tuesday it is anticipated to pull a cold front slowly through our
region. High pressure is forecast to build in from the west on
Wednesday and Thursday. The center of the high is expected to slide
off the coast next weekend but will still continue to influence our
weather through the beginning of next week.
&&
.NEAR TERM /UNTIL 6 PM THIS EVENING/...
900 AM Update...Expanded the Heat Advisory to include the urban
corridor through Philadelphia and Trenton. While peak heat
indices today will be marginal compared to criteria, given
cumulative effects of the heat expect good potential for
continuing impacts through this afternoon.
Previous Discussion...Today is expected to be an active-day, as
a surface low deepens more or less overhead in response to an
(fairly strong by July standards) amplifying upstream h5 trough
and sagging upper-lvl jet. This morning will be fairly quiet
though as we will remain capped with the low and associated cold
front still upstream of the area.
As the cap erodes this afternoon there will be two opportunities for
storms. First it is possible we will see some pop-up diurnal
convection in the early afternoon as the airmass will remain fairly
moist (PWATs > 2 inches, dewpoints 70-75) and unstable (MLCAPE
values increasing to 1000-1500 J/kg by the early afternoon). Heavy
rain will be the biggest threat with these although localized gusty
winds would also be possible. The more organized convective threat
associated with the stronger-forcing near the cold front looks to
approach from the west by mid-afternoon and then progress through
the remainder of the area by the late afternoon into the early
evening (the HRRR is currently a couple hours slower than the other
CAMs).
The same threats as mentioned in previous forecast packages still
look to apply. First strong-severe winds will be possible
particularly if the convective mode becomes linear or organized
multicell, which certainly seems a possibility with 1500-2000 J/kg
of MLCAPE,30 kts of 0-3km shear (for balancing cold pools), and
organized forcing near the cold front. Secondly heavy rain and
flooding will also be possible due to the elevated PWATS, dewpoints,
warm cloud layers, and dynamic forcing. Finally, there is a small
but not completely negligible threat of isolated tornadoes given the
impressive low-lvl instability, LCLs generally under 1000m (outside
of Delmarva which may mix more efficiently) and some locally
enhanced low-lvl helicity either near the front or outflow
boundaries.
Temperatures will be a bit cooler than the past few days, with a
more notable NW-SE temperature gradient due to the frontal position
and earlier onset of precipitation over the NW (precipitation may
not reach Delmarva/far southern NJ until near or after sunset).
Generally expect highs to range from the low-mid 80s in NW NJ and
eastern PA down to the mid 90s in Delmarva. A heat advisory remains
up for Delmarva and southern NJ, and it isn't impossible locations
in the urban corridor farther north could briefly hit criteria this
afternoon. That being said held off on extending the advisory to
include the Philadelphia area since it would likely be brief and
marginal heat advisory conditions.
&&
.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM TUESDAY/...
Although severe threat and overall convective intensity is expected
to wane within a few hours after sunset, expect continued rainfall
through much of the night. The first low does look to move out to
the NE, however guidance remains in fairly good agreement that a
secondary low will develop SW of this low and approach the area by
early Tuesday morning. This will help keep 2+ inch PWATs over much
of the area and along with the encroaching right entrance region of
an upper jet should be able to maintain at least moderate rainfall
over much of the area. It is possible as the low progresses NE the
precip threat will gradually taper from W to E but this is uncertain
at this point. Overnight lows will be a bit cooler than the past few
nights with many locations in PA/NW NJ falling into the 60s.
&&
.LONG TERM /TUESDAY THROUGH SUNDAY/...
330 AM Update...The only changes made to the long term forecast
with this morning's package were adjustments to the PoP
forecast for Tuesday and Tuesday night based on the latest model
guidance.
Tuesday through Wednesday...
By early Tuesday morning, a frontal boundary will be situated SW to
NE extending from the southern Delmarva off the coast of NJ which
will mean the area will be on the cool side of the boundary. However
upper level trough will continue to lag just off to the west with at
least one more impulse likely to come through. For this reason, one
more round of rain/showers and possible thunder is likely for
Tuesday morning mainly from around I-95 and points S/E. The rain
should not be as heavy as what could occur Monday/Monday night but
could still exacerbate any flooding issues that may be ongoing due
to earlier heavy rain. Temperatures will be much cooler with highs
in the 70s to around 80 and dew points in the 60s.
More appreciable clearing finally occurs Tuesday night as the front
continues to push off the coast and high pressure continues to
approach from the west. This surface ridging will nose into western
PA into upstate NY during the day Wednesday. However as the upper
trough axis moves through this along with daytime heating will
result in some daytime Cu but these should be of the fair weather
variety. Temperatures will be near if not a little below average for
this time of year with comfortable levels of humidity.
Wednesday night through Sunday....
A stretch of fair weather looks to finally take hold for the long
term as high pressure should dominate. This will mean mainly sunny
skies with seasonable temperatures and comfortable humidity levels
for Thursday and Friday as the high sets up right near the area.
By next weekend, as the high moves off the coast, a SW flow looks to
kick in so temperatures and dew points may start to nudge back up a
bit. However it doesn't look like a repeat of the current hot
stretch as heat indicies should not be nearly as high. Also, at this
point conditions look to remain mainly clear and free of precip
through next weekend.
&&
.AVIATION /13Z MONDAY THROUGH FRIDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.
Today...Generally VFR with an increasing threat of thunderstorms,
some strong, starting around 18Z in RDG and ABE and progressing
eastward through the remainder of the afternoon. Winds initially
light and variable this morning will favor SW 5-10 kts in the early
afternoon and then veer to the W/NW around 10 kts later in the day.
Tonight...Likely MVFR or lower for much of the night as rain and low
ceilings move in. Winds generally light and variable.
Outlook...
Tuesday...MVFR and IFR conditions in the morning due to lingering
low clouds and showers...especially from KILG through KPHL/KPNE and
KTTN and points S/E. Mainly VFR in the afternoon with a chance of
showers. N/NW wind around 10 knots.
Tuesday night...Mainly VFR. Northwest wind 5 to 10 knots.
Wednesday...Mainly VFR. Northwest wind around 10 knots.
Wednesday night and Thursday...Mainly VFR. Variable wind 10 knots or
less.
Friday...VFR. Light winds.
&&
.MARINE...
Although Sub-SCA conditions are generally expected to prevail, seas
may build to near 5 ft this afternoon over the Atlantic waters and
southerly wind gusts in the 20-25kt range may also be possible.
Thunderstorms will be possible late this afternoon into early this
evening resulting in locally stronger winds and higher seas.
Outlook...
Tuesday through Friday...Seas may be close to Small Craft
Advisory levels early Tuesday but otherwise no marine headlines
are anticipated.
RIP CURRENTS...
An increasing southerly wind fetch and building waves are
expected to create a moderate risk for the development of
dangerous rip currents today along the New Jersey shore. The
Delaware coastline is expected to have a low risk or the
development of dangerous rip currents today.
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flash Flood Watch through Tuesday morning for PAZ054-055-
060>062-070-071-101>106.
Heat Advisory until 7 PM EDT this evening for PAZ070-071-102-
104-106.
NJ...Flash Flood Watch through Tuesday morning for NJZ001-007>010-
012>027.
Heat Advisory until 7 PM EDT this evening for NJZ015>019-021-
023-024.
DE...Flash Flood Watch through Tuesday morning for DEZ001>004.
Heat Advisory until 7 PM EDT this evening for DEZ001>004.
MD...Flash Flood Watch through Tuesday morning for MDZ008-012-015-
019-020.
Heat Advisory until 7 PM EDT this evening for MDZ008-012-015-
019-020.
MARINE...None.
&&
Synopsis...Fitzsimmons/Staarmann
Near Term...Carr/Fitzsimmons
Short Term...Carr
Long Term...Fitzsimmons/Staarmann
Aviation...Carr/Fitzsimmons
Marine...Carr/FitzsimmonsHazardous Weather Outlook National Weather Service Mount Holly NJ 233 PM EDT Mon Jul 22 2019 NJZ001-007>010-PAZ054-055-060>062-101-103-105-231845- Sussex-Warren-Morris-Hunterdon-Somerset-Carbon-Monroe-Berks-Lehigh- Northampton-Western Chester-Western Montgomery-Upper Bucks- 233 PM EDT Mon Jul 22 2019 ...FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... ...SEVERE THUNDERSTORM WATCH 538 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for northern New Jersey, northwest New Jersey, east central Pennsylvania, northeast Pennsylvania and southeast Pennsylvania. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Severe Thunderstorm Watch. Thunderstorms this afternoon and evening could produce severe weather with damaging winds and torrential downpours being the biggest threats. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ001>003-MDZ008-012-015-019-020-NJZ016-021-023-PAZ102-231845- New Castle-Kent-Inland Sussex-Cecil-Kent MD-Queen Annes-Talbot- Caroline-Salem-Cumberland-Cape May-Eastern Chester- 233 PM EDT Mon Jul 22 2019 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... ...FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... ...SEVERE THUNDERSTORM WATCH 538 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for central Delaware, northern Delaware, southern Delaware, northeast Maryland, southern New Jersey and southeast Pennsylvania. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Heat Advisory. Severe Thunderstorm Watch. Thunderstorms this afternoon and evening could produce severe weather with damaging winds and torrential downpours being the biggest threats. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ014-025-026-231845- Eastern Monmouth-Coastal Atlantic-Coastal Ocean- 233 PM EDT Mon Jul 22 2019 ...FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... ...SEVERE THUNDERSTORM WATCH 538 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for central New Jersey and southern New Jersey. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Severe Thunderstorm Watch. Thunderstorms this afternoon and evening could produce severe weather with damaging winds and torrential downpours being the biggest threats. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ024-231845- Atlantic Coastal Cape May- 233 PM EDT Mon Jul 22 2019 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... ...FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... ...SEVERE THUNDERSTORM WATCH 538 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for southern New Jersey. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Heat Advisory. Severe Thunderstorm Watch. Thunderstorms this afternoon and evening could produce severe weather with damaging winds and torrential downpours being the biggest threats. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ004-231845- Delaware Beaches- 233 PM EDT Mon Jul 22 2019 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... ...FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... ...SEVERE THUNDERSTORM WATCH 538 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for southern Delaware. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Heat Advisory. Severe Thunderstorm Watch. Thunderstorms this afternoon and evening could produce severe weather with damaging winds and torrential downpours being the biggest threats. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ430-431-450>455-231845- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 233 PM EDT Mon Jul 22 2019 ...SEVERE THUNDERSTORM WATCH 538 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for Atlantic coastal waters and Delaware Bay Waters. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. Thunderstorms this afternoon and evening could produce wind gusts in excess of 35 knots. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. There is a low probability for widespread hazardous weather. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ015-017>019-PAZ070-071-104-106-231845- Mercer-Gloucester-Camden-Northwestern Burlington-Delaware- Philadelphia-Eastern Montgomery-Lower Bucks- 233 PM EDT Mon Jul 22 2019 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... ...FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... ...SEVERE THUNDERSTORM WATCH 538 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for central New Jersey, southern New Jersey and southeast Pennsylvania. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Heat Advisory. Severe Thunderstorm Watch. Thunderstorms this afternoon and evening could produce severe weather with damaging winds and torrential downpours being the biggest threats. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ012-013-020-022-027-231845- Middlesex-Western Monmouth-Ocean-Atlantic-Southeastern Burlington- 233 PM EDT Mon Jul 22 2019 ...FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... ...SEVERE THUNDERSTORM WATCH 538 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for central New Jersey, northern New Jersey and southern New Jersey. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Severe Thunderstorm Watch. Heat index values in the upper 90s to around 100 degrees are expected from late this morning to late this afternoon. Thunderstorms this afternoon and evening could produce severe weather with damaging winds and torrential downpours being the biggest threats. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1243 PM EDT MON JUL 22 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1116 PM TSTM WND DMG 2 WSW LOWER FREDERICK T 40.27N 75.50W
07/21/2019 MONTGOMERY PA COUNTY OFFICIAL
A FOUR-FOOT DIAMETER TREE WAS BLOWN DOWN
ACROSS GERLOFF ROAD NEAR RYANFORD ROAD. TIME
ESTIMATED FROM RADAR.
&&
CMSSpecial Weather Statement
National Weather Service Mount Holly NJ
128 PM EDT Mon Jul 22 2019
PAZ055-221800-
Monroe-
128 PM EDT Mon Jul 22 2019
...A STRONG THUNDERSTORM WILL AFFECT NORTHERN MONROE COUNTY...
At 128 PM EDT, a strong thunderstorm was located over Mount Pocono,
moving east at 40 mph.
Wind gusts up to 40 mph and pea size hail are possible with this
storm.
Locations impacted include...
Mount Pocono, Tobyhanna, Henryville, Werry Lake, Pocono Pines, Pocono
Raceway, Skytop, Mountainhome, Canadensis, Alpine Mountain, Scotrun,
Blakeslee, Long Pond, Paradise Valley, Gouldsboro State Park and
Cresco.
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 4115 7515 4114 7509 4108 7503 4109 7500
4109 7497 4108 7498 4102 7554 4108 7560
4118 7555 4124 7543 4125 7513
TIME...MOT...LOC 1728Z 251DEG 34KT 4111 7541
CMSSpecial Weather Statement
National Weather Service Mount Holly NJ
150 PM EDT Mon Jul 22 2019
NJZ007-PAZ062-221815-
Warren-Northampton-
150 PM EDT Mon Jul 22 2019
...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN WARREN AND
SOUTHEASTERN NORTHAMPTON COUNTIES...
At 150 PM EDT, a strong thunderstorm was located over Wilson, or near
Easton, moving northeast at 30 mph.
Wind gusts up to 40 mph and pea size hail are possible with this
storm.
Locations impacted include...
Easton, Bethlehem, Forks, Wilson, Washington, Nazareth, Bangor, Bath,
Belvidere, Harmony, Oxford, Belfast, West Easton, Tatamy, Steuben,
Glendon, Brass Castle, Pleasant Valley, Roxburg and Old Orchard.
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 4079 7489 4077 7491 4062 7536 4073 7543
4097 7501
TIME...MOT...LOC 1750Z 240DEG 25KT 4069 7528
CMSSpecial Weather Statement
National Weather Service Mount Holly NJ
200 PM EDT Mon Jul 22 2019
NJZ001-221845-
Sussex-
200 PM EDT Mon Jul 22 2019
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHERN SUSSEX
COUNTY...
At 159 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Milford to 7 miles east of
Canadensis. Movement was east at 35 mph.
Wind gusts up to 40 mph and pea size hail are possible with these
storms.
Locations impacted include...
Port Jervis, Montague, Sussex, Vernon Valley, High Point and
Hainesville.
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 4121 7438 4120 7437 4115 7491 4121 7486
4123 7487 4128 7484 4132 7479 4133 7476
4135 7475 4135 7472 4136 7470
TIME...MOT...LOC 1759Z 253DEG 32KT 4134 7486 4118 7512
CMSSpecial Weather Statement
National Weather Service Mount Holly NJ
213 PM EDT Mon Jul 22 2019
NJZ001-007-PAZ062-221845-
Sussex-Warren-Northampton-
213 PM EDT Mon Jul 22 2019
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHWESTERN SUSSEX...
WARREN AND EAST CENTRAL NORTHAMPTON COUNTIES...
At 212 PM EDT, radar indicated strong thunderstorms were located
along a line extending from Blairstown to near Hope to Harmony.
Movement was northeast at 15 mph.
Wind gusts up to 40 mph are possible with these storms.
Locations impacted include...
Hackettstown, Blairstown, Belvidere, Harmony, Oxford, Hope, Great
Meadows-Vienna, Allamuchy-Panther Valley, Greendell, Roxburg,
Beatyestown, Brass Castle and Beattyestown.
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 4111 7477 4091 7478 4088 7481 4086 7480
4084 7483 4082 7483 4071 7523 4090 7509
4100 7504
TIME...MOT...LOC 1812Z 236DEG 15KT 4098 7499 4090 7502 4076 7515
CMSThe Philadelphia radar (KDIX), 110 km away, was scanning. The volume nearest the first event began at 19:09 UTC.
101 thunderstorm wind, 4 hail. Local standard time, as filed.
A tree was downed on I-80 near the US-206 interchange. Time estimated from radar.
A tree was downed on Brooklyn-Stanhope Rd near Flora Ave. Time estimated from radar.
Nickel size hail.
Trees and power lines were downed throughout the town. Time estimated from radar.
Multiple reports of wires down near Roxbury. Time estimated from radar.
Trees and wires were downed on Oliver Rd. Time estimated from radar.
Hail up to nickel size fell for around 15 minutes.
Trees and wires were downed on Penn Ave. Time estimated from radar.
Social media report of trees down on Green Pond Rd.
Time of report estimated from radar.
Photo received via social media showed hail up to quarter size. Time estimated from radar.
A tree was downed onto wires on Heller Hill Rd. Time estimated from radar.
Trees were downed across Cedarville Rd. Time estimated from radar.
Several reports of trees and wires down were received from in and around Hackettstown. These included on Ridge Ln and Lindsey Dr. Time estimated from radar.
A tree was downed on I-80 westbound east of exit 30. Time estimated from radar.
A tree was downed onto wires, causing an electrical fire, at the intersection of Stephensburg Rd and NJ-57. Time estimated from radar.
Trees and power lines were downed in the area. Time estimated from radar.
A tree fell onto wires and then onto NJ-10 in both directions near Canfield Ave. Time estimated from radar.
Widespread tree, power line, and other damage occurred throughout Collingswood. The nature of the damage and nearby observations suggested wind speeds of around 80mph were responsible. Time estimated from radar.
A tree was downed on Third St in Phillipsburg. Time estimated from radar.
A street light was blown down at the intersection of Memorial Parkway and Bates St. Time estimated from radar.
Several large trees fell across the roadway in Audubon/Westmont just off Cuthbert Blvd. Time estimated from radar.
Downed tree and wires on Barrymore St. Time estimated from radar.
A spotter estimated 60mph winds.
Wind gusts around 70mph were estimated, which was supported by nearby observations and damage reports.
A tree was downed across Prospect St near Main St. Time estimated from radar.
Several large tree branches and power lines were downed. One tree was snapped. Church St was closed at this location. Time estimated from radar.
An mPing report of trees uprooted or snapped. Time estimated from radar.
Photo of a tree snapped with power lines down on Station Ave in Haddon Heights. Time estimated from radar.
A power pole was snapped and another blown to the ground without influence from trees or other debris. Time estimated from radar.
Several trees were blown down or uprooted in this area. Time estimated from radar.
Several trees, large branches, and power lines were downed in this area. Some residential property damage was also observed. Time estimated from radar.
Photo received of a large tree uprooted, which also caused a large area of a residential yard to be torn out of the ground. Time estimated from radar.
Measured by NJ Weathernet site NJ71.
A tree was downed on NJ-38 eastbound at Mt Laurel Rd. All lanes were closed. Time estimated from radar.
A photo showed a tree down near Old Centerton Pike. Time estimated from radar.
Several downed tree limbs and wires blocked Kings Highway. Time estimated from radar.
Numerous trees were downed in the area of Ark Rd and Union Mill Rd in Mount Laurel.
Wires were downed on US-30 eastbound east of the New Jersey Turnpike. All lanes were closed and detoured. Time estimated from radar.
An mPing report of 3 inch diameter tree limbs or power poles broken.
A large tree was snapped onto power lines on Stacy Haines Rd. Nearby ASOS station KVAY lost power around this time and did not record the peak winds from the event.
Several photos of trees down in the area. Time estimated from radar.
A tree was downed on the I-295 northbound ramp from Exit 10.
Several trees were downed on Route 57 in this area. Time estimated from radar.
Several trees were snapped between Union Mill Rd and Hartford Rd. Time estimated from radar.
Numerous tree limbs downed in this area.
Several trees and power lines were downed, including on Bridgeboro Rd between Oneda Ave and Creek Rd. Time estimated from radar.
Several large trees were downed, broken, or leaned over in this area. Time estimated from radar.
County Route 10 was impassable due to downed trees between Randolph and Ledgewood.
A social media video was received of roof and building damage with debris spreading across US-130. Time estimated from radar.
Atlantic City Rail service was suspended in both directions between Lindenwold and Cherry Hill due to a downed tree across the tracks near Lindenwold. Time estimated from radar.
A large tree was uprooted here.
Several poles and wires were downed on Moorestown Mt Laurel Rd between Church Rd and Elbo Ln. Time estimated from radar.
A tree was downed onto a house on Birch Dr with an occupant trapped. Time estimated from radar.
A downed tree blocked a roadway in the area. Time estimated from radar.
A 22 inch diameter pine tree was snapped. Time estimated from radar.
A tree and wires were downed on Mitchell Rd. Time estimated from radar.
Multiple trees were snapped in the area.
Trees and wires were downed in the area. Time estimated from radar.
A tree was downed on the I-295 southbound ramp to Exit 57, closing the ramp. Time estimated from radar.
Multiple small to medium size trees were downed with one house on Post Rd damaged by a fallen tree. Time estimated from radar.
Trees were downed in Fort Dix. Time estimated from radar.
Power lines were downed in Tewksbury Twp. Time estimated from radar.
Trees and wires were downed on S Branch Rd. Time estimated from radar.
Extensive damage occurred in Millstone Twp. Numerous trees and power lines were downed with widespread power outages. Several roads were closed. Time estimated from radar.
A tree was downed on I-195 eastbound approaching Exit 6.
A downed tree blocked Village Rd East. Time estimated from radar.
Social media photos in the area showed trees blown down or uprooted. Time estimated from radar.
Trees and wires were downed in the area. Time estimated from radar.
Trees were uprooted throughout Jamesburg. Several homes had gutter and siding damage. Patio furniture was lifted and blown across a yard. Time estimated from radar.
Several trees and power lines were downed in this area.
An mPing report of trees uprooted or snapped. Time estimated from radar.
Trees and wires were downed on Millstone River Rd.
Widespread tree damage and power outages occurred in and near Howell. The NOAA Weather Radio transmitter located in the area was damaged. Time estimated from radar.
An mPing report of trees uprooted or snapped. Time estimated from radar.
Downed wires on US-9 southbound at Schibanoff Ln. All lanes were closed and detoured. Time estimated from radar.
Several reports were received of downed trees and power lines between Milltown and new Brunswick. Time estimated from radar.
Several large trees were blown down. Time estimated from radar.
Wires were downed on US-1 northbound at Sand Hills Rd. Time estimated from radar.
Several trees were snapped or uprooted. The individual reporting the damage estimated 60 to 70mph winds.
Photo received of a tree uprooted in Freehold.
Multiple reports received of trees down in Lakehurst. Time estimated from radar.
A tree was downed on the Garden State Parkway near the NJ-33 interchange. Time estimated from radar.
Extensive damage was reported in Wall Twp. Roads closed from storm damage included New Bedford Rd between 18th Ave and Allaire Rd, Baileys Corner Rd between 18th Ave and Allaire Rd, NJ-18 south at Exit 6A, and NJ-138 at the Garden State Parkway.
Wires were downed on US-1 southbound at Old Post Rd. All lanes were closed and detoured. Time estimated from radar.
A tree was downed on the Garden State Parkway northbound entering at Exit 98. The on-ramp was blocked. Time estimated from radar.
Route 9 south was closed due to trees and wires down. Time estimated from radar.
Several trees were downed on Garden State Parkway in both directions from north of Exit 105 to north of Exit 116. Time estimated from radar.
A downed tree closed all lanes of NJ-79 south of Wilson Ave. Time estimated from radar.
A downed tree closed all lanes of NJ-166 at Dayton Ave. Time estimated from radar.
A tree was downed on the NJ-36 northbound ramp to Garden State Parkway, closing the ramp. Time estimated from radar.
Trees and wires were downed on Prospect Ave. Time estimated from radar.
A tree was downed on NJ-33 in both directions east of NJ-18. All lanes were closed. Time estimated from radar.
Trees were downed in Sayreville. Time estimated from radar.
A tree was downed on NJ-35 in both directions south of Sycamore Ave. All lanes were closed. Time estimated from radar.
Trees and wires were downed in the area. Time estimated from radar.
Downed power poles and wires on NJ-35 near the Morgan Drawbridge. Time estimated from radar.
Numerous trees and power lines were downed in this area. Time estimated from radar.
Trees and wires were downed in the area. Time estimated from radar.
Several large trees were downed in the area. Time estimated from radar.
Several trees and power lines were downed in the area. Time estimated from radar.
A large tree was downed in Absecon. Time estimated from radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New Jersey in 2019Every state in 2019This day in weather historyWarnings in New Jersey, July 2019
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 833645, 833646, 833641, 833647, 833648, 833649, 833642, 833650, 833651, 833643, 833644, 833653, 833654, 833655, 833656, 833657, 833658, 833659, 833660, 833661, 834652, 834653, 834654, 834731, 834732, 834655, 834656, 834657, 834658, 834659, 834660, 834661, 834662, 834733, 834663, 834664, 834665, 834666, 834667, 834668, and more.