A derecho developed just southeast of Lake Erie during the early morning hours of June 3, 2020, then moved rapidly southeast across Pennsylvania before exiting the central New Jersey coast during the early afternoon hours, approximately 130 PM. Damaging winds in excess of 60 MPH were sporadic over western and central Pennsylvania, but as the thunderstorm complex moved into increasingly unstable…
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 derecho developed just southeast of Lake Erie during the early morning hours of June 3, 2020, then moved rapidly southeast across Pennsylvania before exiting the central New Jersey coast during the early afternoon hours, approximately 130 PM. Damaging winds in excess of 60 MPH were sporadic over western and central Pennsylvania, but as the thunderstorm complex moved into increasingly unstable air in the eastern part of the state just before noon, wind damage reports became more numerous and widespread. Most of these reports were confined within a 50-mile wide swath extending from Berks County eastward to the Philadelphia metro area, then further east to the Ocean County shoreline in New Jersey. Wind gust reports between 60 and 70 MPH were common within this swath, with some of the highest gusts as follows: 89 MPH in Beach Haven, 87 MPH in Brick (both in Ocean County), 76 MPH in Brielle (Monmouth County), and 67 MPH in Jacksonville (Burlington County). In addition to these destructive wind gusts, frequent to continuous cloud to ground lightning and heavy downpours were also reported throughout the area.
Over 112,000 power outages were reported in southern New Jersey as a result |of fallen trees on power lines. Some localities were without power for several days.
Because this derecho moved off the coast by 200 PM, the warm afternoon sun was able to sufficiently destabilize the atmosphere for the formation of another round of severe thunderstorms over some of the same areas that experience them earlier in the day. Reported wind gusts associated with these thunderstorms generally ranged between 45 and 65 MPH, with a 65 MPH wind gust measured at the Philadelphia International Airport. The remaining thunderstorms then moved offshore by 1000 PM, which brought an end to the day's severe weather.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Philadelphia/Mount Holly wrote its last area forecast discussion before the first event at Jun 3, 10:19 AM EST, 1 hour earlier.
Area Forecast Discussion
National Weather Service Mount Holly NJ
1119 AM EDT Wed Jun 3 2020
.SYNOPSIS...
A cold front will move into the Mid-Atlantic today and linger
across the area through the end of the week. Low pressure
progressing through southeast Canada on Friday will allow a cold
front to sweep through the region on Saturday. High pressure
will build into the Northeast Sunday into the beginning of next
week. Unsettled weather may return to the area by midweek.
&&
.NEAR TERM /THROUGH TONIGHT/...
The first of several short wave/vorticity impulses is moving across
central Pennsylvania late this morning and will move across our area
through the early afternoon. A line of showers and thunderstorms,
previously associated with elevated instability, will soon be
encountering building surface based instability as it moves
southeastward. CAPE values will build to over 1000 J/kg with shear
values of 35-45+ knots. The flow is fairly unidirectional, and with
700-500 mb winds of 40-60 knots, damaging winds will likely be the
main threat. However, with mid-level lapse rates of 7.0-7.5 C/km,
there will also be the chance for some large hail for the tallest
storms even though the freezing level/wet bulb 0 heights are fairly
high.
Once this line moves offshore this afternoon, additional showers and
thunderstorms are expected to develop behind it as the cold front
continues to slowly sag southward and interact with the building
instability. CAPE could build to 2000+ J/kg, while the vertical wind
profile and lapse rates look similar to early in the day. So any
storms that develop later this afternoon into this evening could
again become severe. Damaging winds and large hail continue to be a
threat.
Another concern on Wednesday will be the heat and humidity.
Temperatures will warm will into the 80s, even lower 90s for some
areas. However, dewpoints will be low enough to keep heat index
values from reaching Heat Advisory levels, although it will be a hot
and humid day.
As the evening progresses, instability will begin to wane ,
therefore the threat for more widespread thunderstorms and severe
weather will diminish as the evening moves into the overnight hours,
although there will be a chance of showers through the night as
multiple vorticity impulses move across the area.
&&
.SHORT TERM /THURSDAY THROUGH THURSDAY NIGHT/...
The front is expected to stall over our region by early Thursday
morning. The question remains exactly where it will stall. For
now have made few changes to the previous forecast as there is
still too much spread to feel confident in exactly where the
front stalls. None the less, where it does end up, there remains
a threat for heavy rain leading to flash flooding.
The zonal flow aloft is expected to be nearly parallel to the
stalled front. We'll have some synoptic scale lift thanks to the
upper level jet (our region should be in the prime location for
the right rear quadrant of the jet). There is unlikely to be
much in the way of dry air advection, keeping precipitable water
values well above normal. The warm cloud layer is expected to
be relatively deep (greater than 10K ft). Additionally, storm
motions are expected to be less than 20 kt. All of these factors
together mean we could have slow moving, training storms in the
vicinity of the stationary front capable of heavy rain. As
mentioned by the previous shift, it will likely not be a
widespread heavy rain event, but rather a narrow band of higher
rain totals. Given the uncertainty as to where this will be,
have held off on issuing a flash flood watch at this time.
As for temperatures, there won't be a very large temperature
gradient across the stationary front. None the less, extensive
cloud cover should keep most of the region in the 80s during the
day.
&&
.LONG TERM /FRIDAY THROUGH TUESDAY/...
Busy start to the medium-range forecast as a decaying front
lingers across the northern Mid-Atlantic on Friday and a
secondary front moves through the Northeast on Saturday. High
pressure will cool us down and dry us out Sunday through
Tuesday, but the weather looks to become more unsettled by the
middle of next week.
The forecast for Friday remains tricky, as model guidance is
quite variable with placement/timing of initiating mechanisms
for convection during the day. However, what is clear is that a
stalled (albeit slowly decaying) front will be in the region.
Weak perturbations within midlevel quasi-zonal flow will be
migrating through the area. The timing of these perturbations is
in question, though, with the 06z GFS considerably slower than
the 00z CMC, e.g. Nevertheless, the ambient environment combined
with likely mesoscale lifting sources difficult to resolve at
this time range suggest scattered convection will likely develop
during the day. Fortunately, the PWs look somewhat lower than
those anticipated for Thursday (around 1.5 inches expected), and
deep-layer shear is quite low (around 20 kt or less). Main
threat looks to be locally heavy rainfall and wet microbursts,
but anticipated coverage of both at this stage looks fairly
small. Will continue to monitor this potential, with the
additional note that antecedent convection will play a primary
role in the placement of the front and the resultant effects on
convective location/evolution.
The model discrepancies increase for Saturday as a strong
northern-stream shortwave trough digs through southeast Canada
into the Northeast. An attendant cold front will move through
the region during the day, but the timing of this is (once
again) all over the place. The CMC looks considerably faster,
but this seems somewhat questionable given the lack of close
proximity to the upstream vort max. Suspect the slower timing of
the GFS is more probable, which would mean another round of
convection for the area during the afternoon/evening. There is a
conditional risk of severe storms (depending on frontal
placement) for the region, as MLCAPE > 1000 J/kg and deep-layer
shear near/above 30 kt is a favorable parameter space for
organized severe storms. PWs will once again be above 1.5 inches
in advance of the front, so locally heavy rainfall is once again
a threat.
Temperatures Friday and Saturday should be warm, with highs in
the mid to upper 80s with dew points in the mid to upper 60s.
Colder/drier air moves into the region by Sunday and continues
through Tuesday as a strong surface high builds into southeast
Canada and the northeast U.S. Expect temperatures near or
slightly below seasonal averages through this period.
The next system is expected to move into the area around the
middle of next week. This system will likely ingest whatever
remains of Cristobal, so this will obviously deserve some
monitoring as time approaches. Of course, given how far out this
is and how variable the guidance is by this point, confidence is
quite low on details.
&&
.AVIATION /14Z WEDNESDAY THROUGH SUNDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.
Today...Generally VFR conditions expected through the day. However,
there are a couple of chances of showers and thunderstorms. Any
showers or thunderstorms could lead to a brief period of MVFR or IFR
conditions. There is also the possibility for some severe weather if
thunderstorms do develop with damaging winds and hail possible. Two
TEMPO grounds have been included in the TAFS to account for the
thunderstorm potential and best timing of the storms.
Generally west to southwest winds increasing to 10-15 knots, with
gusts 20-25 knots.
Tonight...Mostly VFR conditions are expected. However, there
will be a chance of showers and thunderstorms continuing into
the evening hours which may temporarily lead to lower
conditions. Wind gusts will diminish by sunset.
Outlook...
Thursday...Prevailing VFR, with a period of MVFR/IFR Thursday
afternoon and evening with showers and storms. Highest chances
for prevailing reduced visibilities will be from PNE/PHL south.
Light northwesterly winds becoming light southwesterly in the
afternoon then light and variable overnight. Low to moderate
confidence.
Friday through Saturday...Primarily VFR conditions. However,
multiple rounds of showers/storms possible with restrictions
likely in their vicinity. South winds 5 to 15 kt gradually
becoming west by Saturday. Some gusts to 20 kt possible during
the day. Moderate confidence.
Saturday night and Sunday...Some lingering storms possible
southeast of PHL Saturday evening. Otherwise, mainly VFR with
northwest winds up to 10 kt Saturday night becoming 10 to 15 kt
with higher gusts on Sunday. Moderate confidence.
&&
.MARINE...
Today...A Small Craft Advisory has been issued for Delaware Bay
as winds have been gusting around 25 knots this morning and
will likely continue into the afternoon. Conditions expected to
remain below advisory levels on the Atlantic coastal waters as a
low level inversion is expected to keep the stronger winds from
mixing down. However, winds will gust around 20 knots at times
on the Atlantic coastal waters as well.
There is a chance of showers and thunderstorms, some which could
produce wind gusts greater than 35 knots.
To night...Conditions are expected to remain below advisory
levels, although winds could continue to gust around 20 knots at
times. A chance of showers and thunderstorms continues into the
evening hours, before chances diminish overnight.
Outlook...
Thursday through Saturday night...Sub-advisory winds/seas
expected. Storms possible, with strong/erratic winds and higher
waves possible in their proximity. The best chances for
convection are Thursday afternoon/evening, Friday night, and
Saturday afternoon/night, though chances exist through the
period.
Sunday...Sub-advisory winds/seas and fair conditions expected.
Rip currents...
West to southwest winds increase during Wednesday. Wave heights
may increase slightly, and with the new moon on Friday low tides
will be lower than normal. Therefore, have updated the risk for
the formation of dangerous rip currents to moderate through this
evening.
A lighter southerly flow Thursday should result in a low risk
of rip currents.
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...Small Craft Advisory until 8 PM EDT this evening for ANZ430-
431.
&&
Synopsis...CMS
Near Term...Robertson
Short Term...Johnson
Long Term...CMS
Aviation...CMS/Johnson/Robertson
Marine...CMS/Johnson/RobertsonHazardous Weather Outlook National Weather Service Mount Holly NJ 1031 AM EDT Wed Jun 3 2020 DEZ002-MDZ012-015-041445- Kent-Kent MD-Queen Annes- 1031 AM EDT Wed Jun 3 2020 This Hazardous Weather Outlook is for central Delaware and northeast Maryland. .DAY ONE...Today and tonight. Severe thunderstorms are possible today. The primary hazard will be damaging winds. Some large hail is possible as well. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. A narrow corridor of heavy rain leading to flash flooding will be possible with showers and storms on Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. Please relay any information about observed severe weather to the NWS while following all local, state, and CDC guidelines. DEZ001-MDZ008-NJZ016>019-021>023-027-PAZ070-071-101-102-104-041445- New Castle-Cecil-Salem-Gloucester-Camden-Northwestern Burlington- Cumberland-Atlantic-Cape May-Southeastern Burlington-Delaware- Philadelphia-Western Chester-Eastern Chester-Eastern Montgomery- 1031 AM EDT Wed Jun 3 2020 ...SEVERE THUNDERSTORM WATCH 242 IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON... This Hazardous Weather Outlook is for northern Delaware, northeast Maryland, southern New Jersey and southeast Pennsylvania. .DAY ONE...Today 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. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. A narrow corridor of heavy rain leading to flash flooding will be possible with showers and storms on Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. Please relay any information about observed severe weather to the NWS while following all local, state, and CDC guidelines. NJZ007-009-010-012-013-015-020-PAZ054-055-060>062-103-105-106-041445- Warren-Hunterdon-Somerset-Middlesex-Western Monmouth-Mercer-Ocean- Carbon-Monroe-Berks-Lehigh-Northampton-Western Montgomery- Upper Bucks-Lower Bucks- 1031 AM EDT Wed Jun 3 2020 ...SEVERE THUNDERSTORM WATCH 242 IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON... This Hazardous Weather Outlook is for central New Jersey, northern New Jersey, northwest New Jersey, southern New Jersey, east central Pennsylvania, northeast Pennsylvania and southeast Pennsylvania. .DAY ONE...Today 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. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. Please relay any information about observed severe weather to the NWS while following all local, state, and CDC guidelines. NJZ001-008-041445- Sussex-Morris- 1031 AM EDT Wed Jun 3 2020 This Hazardous Weather Outlook is for northern New Jersey. .DAY ONE...Today and tonight. Severe thunderstorms are possible today. The primary hazard will be damaging winds. Some large hail is possible as well. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. Please relay any information about observed severe weather to the NWS while following all local, state, and CDC guidelines. DEZ003-MDZ019-020-041445- Inland Sussex-Talbot-Caroline- 1031 AM EDT Wed Jun 3 2020 This Hazardous Weather Outlook is for southern Delaware and northeast Maryland. .DAY ONE...Today and tonight. Severe thunderstorms are possible today. The primary hazard will be damaging winds. Some large hail is possible as well. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. A narrow corridor of heavy rain leading to flash flooding will be possible with showers and storms on Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. Please relay any information about observed severe weather to the NWS while following all local, state, and CDC guidelines. ANZ455-041445- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 1031 AM EDT Wed Jun 3 2020 This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Today and tonight. Storms today will be capable of producing wind gusts in excess of 35 kt. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. Please relay any information about observed severe weather to the NWS while following all local, state, and CDC guidelines. ANZ430-431-450>454-041445- 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- 1031 AM EDT Wed Jun 3 2020 ...SEVERE THUNDERSTORM WATCH 242 IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON... This Hazardous Weather Outlook is for Atlantic coastal waters and Delaware Bay Waters. .DAY ONE...Today 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. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. Please relay any information about observed severe weather to the NWS while following all local, state, and CDC guidelines. NJZ014-026-041445- Eastern Monmouth-Coastal Ocean- 1031 AM EDT Wed Jun 3 2020 ...SEVERE THUNDERSTORM WATCH 242 IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON... This Hazardous Weather Outlook is for central New Jersey and southern New Jersey. .DAY ONE...Today 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. There is a moderate risk of rip currents today. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. Please relay any information about observed severe weather to the NWS while following all local, state, and CDC guidelines. NJZ024-025-041445- Atlantic Coastal Cape May-Coastal Atlantic- 1031 AM EDT Wed Jun 3 2020 ...SEVERE THUNDERSTORM WATCH 242 IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON... This Hazardous Weather Outlook is for southern New Jersey. .DAY ONE...Today 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. There is a moderate risk of rip currents today. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. Please relay any information about observed severe weather to the NWS while following all local, state, and CDC guidelines. DEZ004-041445- Delaware Beaches- 1031 AM EDT Wed Jun 3 2020 This Hazardous Weather Outlook is for southern Delaware. .DAY ONE...Today and tonight. There is a moderate risk of rip currents today. Severe thunderstorms are possible today. The primary hazard will be damaging winds. Some large hail is possible as well. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. Please relay any information about observed severe weather to the NWS while following all local, state, and CDC guidelines. CMS
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1209 PM EDT WED JUN 3 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1200 PM TSTM WND DMG 1 N ELVERSON 40.18N 75.83W
06/03/2020 BERKS PA UTILITY COMPANY
TREES AND POWER LINES DOWN.
&&
CMSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1210 PM EDT WED JUN 3 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1202 PM TSTM WND DMG 1 NNW WASHINGTON TWP 40.40N 75.60W
06/03/2020 BERKS PA UTILITY COMPANY
DOWNED TREES AND POWER LINES ON SYCAMORE
ROAD.
&&
CMSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1214 PM EDT WED JUN 3 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1159 AM TSTM WND GST POTTSTOWN 40.25N 75.65W
06/03/2020 M76 MPH MONTGOMERY PA TRAINED SPOTTER
&&
CMSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1215 PM EDT WED JUN 3 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1140 AM TSTM WND DMG 1 N SPRING TWP 40.33N 76.01W
06/03/2020 BERKS PA FIRE DEPT/RESCUE
TREE DOWN ONTO A HOUSE ON EAST COURT
BOULEVARD. TIME ESTIMATED.
&&
CMSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1217 PM EDT WED JUN 3 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1212 PM TSTM WND DMG 2 S CHESTER SPRINGS 40.07N 75.62W
06/03/2020 CHESTER PA COUNTY OFFICIAL
TREE DOWN ON CONESTOGA ROAD.
&&
CMSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1219 PM EDT WED JUN 3 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1211 PM TSTM WND DMG SPRING CITY 40.17N 75.55W
06/03/2020 CHESTER PA COUNTY OFFICIAL
LARGE TREE DOWN ON WALL STREET.
&&
CMSThe Philadelphia radar (KDIX), 55 km away, was scanning. The volume nearest the first event began at 16:21 UTC.
133 thunderstorm wind. Local standard time, as filed.
Photo from social media shows a large tree split in half and downed onto a fence in Haddon Heights. Time estimated from radar.
Extensive tree damage with several trees and large branches down in Gloucester Heights. Time estimated from radar.
Downed tree on Interstate 295 south of Exit 15 in Gibbstown. Time estimated from radar.
Downed power poles and wires on State Highway 29 north of Pleasant Valley Road near Titusville. Time estimated from radar.
Downed tree on Interstate 76 Westbound ramp to Exit 1C in Gloucester Heights. Time estimated from radar.
Downed tree on U.S. Highway 130 southbound south of Browning Road in Pennsauken. Time estimated from radar.
Downed tree on State Highway 47 near Broadway Avenue in Cherry Hill. Time estimated from radar.
Multiple large trees down and at least one power pole snapped in Cinniminson. Report via social media with photos. Time estimated from radar.
Downed traffic light on State Highway 168 at Browning Road in Bellmawr. Time estimated from radar.
Downed tree on New Jersey Turnpike southbound south of Exit 3 near Runnemeade. Time estimated from radar.
Several trees down near Wertsville. Time estimated from radar.
Downed tree on New Jersey Turnpikd north of State Highway 73 near Moorestown. Time estimated from radar.
Several trees and power poles downed or snapped on Center Street between Virginia Avenue and Highland Avenue in Haddon Heights. Time estimated from radar.
Spotter measured a gust of 56 KTS in Delanco. Time estimated from radar.
Numerous trees down blocking roadways in Willingboro. Time estimated from radar.
Several large trees and limbs down throughout the Beverly area. Time estimated from radar.
Solar panels damaged and blown off of Cold Spring Elementary School Report via social medial, with photos. Time estimated from radar.
Several trees down blocking roadways in Haddonfield. Time estimated from radar.
Large tree damaged property in Hopewell Township.
A 63 knot gust measured at Delran High School Last reading before instrument failed. Time estimated from radar.
A 56 knot gust measured in Willingboro. Large branches down.
A 51 knot gust reported by a New Jersey Weathernet sensor in Pennsauken.
Tree down on a car, also landing on a section of a home, near Moorestown. No signficant damage apparent to home. Time estimated from radar.
Downed tree on Interstate 295 southbound at Exit 43. Time estimated from radar.
Downed tree on New Jersey Turnpike north of State Highway 168. Time estimated from radar.
Downed tree and wires on U.S. Highway 30 west of State Highway 41 near Barrington. |Time estimated from radar.
Downed power lines on U.S. Highway 30 east of Graisbury Avenue. Time estimated from radar.
Downed tree on Interstate 295 at Exit 15. Time estimated from radar.
Trees down in Delran with some on power lines and some blocking roads, including on Haines Mill Road. Time estimated from radar.
Several trees snapped on Pioneer Boulevard off of Woodlane Road in Westampton. Time estimated from radar.
Tree uprooted and blocking most of Bridgeboro Road near Echo Avenue. Time estimated from radar.
Photo shows a large tree downed on fence near Haddon Heights. Time estimated from radar.
Numerous trees snapped and uprooted with some onto houses in Westmont. Time estimated from radar.
A measured gust of 50 knots at Trenton Airport.
Downed tree on the New Jersey Turnpike south of Exit 5. Time estimated from radar.
Downed tree near the Bridle Club on Ridgewood Way. Report via social media with photo. Time estimated from radar.
Downed power poles and wires on U.S. Highway 130 southbound near Neck Road. Time estimated from radar.
Trees down in Lawrencevlle. Time estimated from radar.
Tree down on Larchmont Boulevard towards Union Mill. Time estimated from radar.
Multiple trees down blocking roadways in Moorestown. Time estimated from radar.
Downed trees and power lines on Hainesport Road between State Highway 38 and Marne Highway in Hainesport. Time estimated from radar.
Trees down on homes in Essex Place near Hainesport. Time estimated from radar.
Trees down on Memorial Lane in Hainesport. Time estimated from radar.
Several trees onto power lines on Borton Landing Road between Creek Road and Hartford Road in Moorestown. Some power poles leaning over the road. Time estimated from radar.
Several trees and limbs down in Marlton and Voorhees. Time estimated from radar.
A measured gust of 63 knots in Moorestown. Time estimated from radar.
A measured gust of 56 knots at a New Jersey Weathernet sensor in Moorestown.
Tree snapped near the intersection of State Highway 70 and Medford Leas Road. Time estimated from radar.
Several large trees snapped in Lumberton. Report via social media with photo. Time estimated from radar.
Downed tree on High Street in Mount Holly. Time estimated from radar.
Downed tree and wires on U.S. Highway 130 southbound south of State Highway 156 near Bordentown. Time estimated from radar.
Several power poles toppled on Eayrestown Road near Lumberton. Time estimated from radar.
Large parts of trees blown down in Hamilton Square. Spotter estimated wind gust of 55 MPH. Time estimated by radar.
Tree down near a home in Tabernacle. No damage reported to house. Time estimated by radar.
Multiple trees down near the intersection of State Highway 70 and Old Red Lion Road near Medford Lakes. Time estimated by radar.
Downed trees and power poles on U.S. Highway 206 south of Vincentown-Buddtown Road in Southampton Township. Time estimated from radar.
Downed tree on State Highway 68 near Monmouth Road in Wrightstown. Time estimated from radar.
Trees down near Mount Holly. Time estimated from radar.
Large trees snapped near Cherry Hill.
Multiple large trees down near and along Fish Pond Road east of Rowan University. Time estimated from radar.
New Jersey Weather Net sensor site at Columbus reported a gust of 67 MPH.
A 60 MPH wind gust reported by a mesonet station on Wxunderground.
A 60 MPH gust was reported in Lumberton by a trained spotter.
Trees uprooted near State Highway 70 and Huntington Drive near Leisuretown. Time estimated from radar.
Several reports of trees and power lines down in and near Pemberton. Time estimated from radar.
Numerous trees down near Tabernacle. Time estimated from radar.
Downed trees throughout the area south of Allentown, NJ. Spotter estimated winds at 60 MPH.
Tree downed near the intersection of Powell Place Road and Eldorado Driver near Leisuretown. Report via social media with photo. Time estimated from radar.
Several reports of trees and power lines down near Country Lake Estates. Time estimated from radar.
Route 537 by Upper Elementary School near Jacobstown blocked by downed trees. Spotter estimated gusts in excess of 60 MPH. Time estimated from radar.
Downed tree limbs and damage to shed and fence near Pitman.
Large, healthy tree snapped, report via social media with a photo near Shamong. Time estimated from radar.
Several reports of power lines down in the Hammonton area. Time estimated from radar.
Several reports of downed trees and power lines near Whiting. Time estimated from radar.
A number of large trees downed or damaged in Lakehurst. Time estimated from radar.
Numerous trees down near Lakehurst. Time estimated from radar.
A 65 MPH wind gust reported by the AWOS unit at Joint Base Mcguire in Lakehurst.
Several reports of downed trees and power lines in the Southard area. Time estimated from radar.
Downed tree on State Highway 72 east of Barnegat Road. Time estimated from radar.
Several trees down near Beachwood. Time estimated from radar.
Several reports of downed trees and wires east of Lakehurst. Time estimated from radar.
A 58 MPH wind gust reported by a mesonet station in Jackson Township.
A 58 MPH wind gust reported by the AWOS station at the Ocean County Airport.
Downed trees onto power lines and minor property damage reported on Turtle Creek Road near Wading River. Time estimated from radar.
Downed trees and power lines in the Spring Lake area. Time estimated from radar.
Downed tree on Garden State Parkway southbound north of State Highway 72 in Stafford Township. Time estimated from radar.
Several reports of power lines down in Barnegat Township. Time estimated from radar.
Numerous reports of trees and power lines down in Toms River. Time estimated from radar.
A 67 MPH wind gust reported by the New Jersey Weathernet sensor in Berkeley Township.
A 63 MPH wind gust reported by a WeatherFlow sensor in Seaside Heights.
Large tree down on a house in Manasquan. Time estimated from radar.
Several trees down near Mystic Island. Time estimated from radar.
A wind gust of 65 MPH reported by a WxFlow sensor in Beach Haven Heights.
A 59 MPH wind gust reported by a WxFlow sensor near Ocean Beach Marina.
A 75 MPH wind gust reported by a personal weather station (KNJWARET3) near Brielle.
Measured 72 MPH wind gust from Wxunderground knjlongb42 in Beach Haven Terrace.
An 87 MPH wind gust from a WXFLOW sensor south of Mantoloking.
Photo of a large tree down in a residential neighborhood in Little Egg Harbor Township. Time estimated from radar.
An 89 MPH wind gusts reported by a mesonet station in Beach Haven (knjsurfc12).
A 72 MPH wind gust reported by a New Jersey Weathernet sensor in Harvey Cedars (knjharve5).
A 59 MPH wind gust was measured by a spotter in Surf City.
A 63 MPH gust was reported by a member of the general public in Seaside Park.
A 78 MPH gust measured by a Weatherunderground mesonet site at Chadwick, Long Beach Island (knjlaval14).
Downed tree on U.S. Highway 9 southbound at Ohio Avenue in Absecon. Time estimated from radar.
A 68 MPH gust reported by a HADS sensor in Beach Haven Heights.
A gust of 68 MPH was reported by a Wxflow sensor in Beach Haven Heights.
Measaured 93 MPH wind gust from Wxunderground knjlongb42.
Several reports of downed trees and wires in Egg Harbor City. Time estimated from radar.
A 92 MPH gust reported in Surf City. Time updated based on when observation was taken.
Downed tree on Wrangleboro Road in Port Republic. Time estimated from radar.
Downed trees in Egg Harbor City and Brigantine.
Tree uprooted on Cuthbert Blvd in Haddon Township. Time estimated from radar.
A 92 MPH wind gust was reported near Surf City on social media.
Downed trees and power lines in the Magnolia area. Estimated gusts up to 70 MPH.
Several reports of trees and power lines down in Blackwood. Time estimated from radar.
Downed tree limbs and fencing at a residence in Blackwood. Time estimated from radar.
Numerous trees and limbs down in the Somerdale area. Time estimated from radar.
Downed trees on the New Jersey Turnpike near Exit 3 near Haddon Leigh. Time estimated from radar.
Downed trees and wires near Route 519 and Neilson Road near Wantage. Time estimated from radar.
Several downed trees and limbs in the Haddon Heights area.
Debris down on the railroad tracks along Atlantic Avenue in Somerdale.
Large tree down with multipl parked cars underneath in Somerdale.
Several reports of power lines down in the Chesilhurst area. Time estimated from radar.
Large tree snapped from its base in Westmont.
Several reports of tree limbs and power lines down near Route 515 and Vernon Crossing Road near Wawayanda State Park. Time estimated from radar.
Tree down in yard and dime-sized hail near Clementon.
Power lines reported down in the Folsom area. Time estimated from radar.
Several reports of trees and wires down in Hammonton. Time estimated from radar.
Debris down on the railroad tracks along Atlantic Avenue in Somerdale. Time estimated from radar.
Several reports of trees down on Elwood Road near Elwood. Time estimated from radar.
Downed tree and wires near the intersection of Elwood Road and Pleasant Mills Road near Sweetwater. Time estimated from radar.
Several reports of power lines down in the Port Republic area. Time estimated from radar.
Downed power lines reported in Beach Haven. Time estimated from radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New Jersey in 2020Every state in 2020This day in weather historyWarnings in New Jersey, June 2020
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: 885739, 885741, 885743, 885747, 885749, 885751, 885754, 885755, 885756, 885757, 885760, 885761, 885762, 886794, 886046, 886047, 886048, 886050, 886051, 886795, 886796, 886797, 886052, 886054, 886055, 886056, 886057, 886059, 886060, 886061, 886062, 886063, 886064, 886798, 886068, 886069, 886070, 886073, 886217, 886218, and more.