Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 236, NWS Philadelphia/Mount Holly

July 20, 2019Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 20, 2019, 6:54 PM EDT for Sussex County, New Jersey. It was in force for 29 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 20, 2019, 6:54 PM EDT (22:54 UTC)
Expired
Jul 20, 2019, 7:23 PM EDT
In force
29 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Sussex County, NJ

The radar

The Binghamton radar (KBGM), 148 km from the middle of the area, began a volume at 22:54 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.

What was reported inside it

TimeReportWhereRemark
Jul 20, 7:08 PM EDTTSTM WND DMGBranchville, NJSEVERAL TREES REPORTED DOWN BLOCKING CR-519 NEAR BRANCHVILLE. TIME ESTIMATED FROM RADAR.
Jul 20, 7:10 PM EDTTSTM WND DMGFrankford Twp, NJDELAYED REPORT. NUMEROUS TREES AND POWER LINES DOWN IN THE TOWNSHIP. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 14 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.9 hours before the alert went out and 163 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.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2019-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1058 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2019-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1058 J/kg
Mixed-layer CIN
-128 J/kg
Mixed-layer LCL
1334 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
14 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

997 
WUUS51 KPHI 202254
SVRPHI
NJC037-202345-
/O.NEW.KPHI.SV.W.0236.190720T2254Z-190720T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
654 PM EDT Sat Jul 20 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northern Sussex County in northwestern New Jersey...

* Until 745 PM EDT.

* At 654 PM EDT, a severe thunderstorm was located near Branchville,
  or 8 miles southeast of Montague, moving east at 15 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Damage to roofs, siding, trees, and power lines is 
           possible.

* Locations impacted include...
  Port Jervis, Montague, Franklin, Hamburg, Ogdensburg, Sussex,
  Branchville, High Point, Pellettown, Crandon Lakes and Hainesville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4127 7451 4104 7456 4114 7492 4121 7486
      4123 7487 4128 7484 4132 7479 4133 7476
      4135 7476 4136 7469
TIME...MOT...LOC 2254Z 274DEG 13KT 4119 7472 

HAIL...<.75IN
WIND...60MPH
 
$$

CMS
2 follow-up statements
147 
WWUS51 KPHI 202310
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
710 PM EDT Sat Jul 20 2019

NJC037-202345-
/O.CON.KPHI.SV.W.0236.000000T0000Z-190720T2345Z/
Sussex NJ-
710 PM EDT Sat Jul 20 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR CENTRAL SUSSEX COUNTY...

At 709 PM EDT, a severe thunderstorm was located over Pellettown, or
9 miles northeast of Newton, moving east at 15 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Franklin, Hamburg, Ogdensburg, Sussex, Branchville, High Point and
Pellettown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4114 7484 4127 7475 4136 7469 4127 7451
      4104 7456 4109 7473
TIME...MOT...LOC 2309Z 278DEG 11KT 4118 7468 

HAIL...<.75IN
WIND...60MPH
 
$$

CMS
181 
WWUS51 KPHI 202323
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
723 PM EDT Sat Jul 20 2019

NJC037-202333-
/O.CAN.KPHI.SV.W.0236.000000T0000Z-190720T2345Z/
Sussex NJ-
723 PM EDT Sat Jul 20 2019

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SUSSEX COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However, gusty winds and 
heavy rain are still possible with this thunderstorm.

LAT...LON 4114 7484 4127 7475 4136 7469 4127 7451
      4104 7456 4109 7473
TIME...MOT...LOC 2320Z 274DEG 13KT 4118 7461 

$$

CMS

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 20, 3:27 PM EDT, 3 hours 27 minutes earlier.

Area forecast discussion, Jul 20, 3:27 PM EDT, 3 hours 27 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
327 PM EDT Sat Jul 20 2019

.SYNOPSIS...
A ridge of high pressure will remain entrenched off the coast of the
southeastern U.S. through Sunday. A cold front will approach and
progress through the region Monday into Tuesday. A cooler and drier
air mass will advect in for the remainder of the week.

&&

.NEAR TERM /UNTIL 6 AM SUNDAY MORNING/...
The heat continues to be the main story this afternoon with heat
indices at 100 to 105+ across much of the area under skies that are
generally mostly sunny. As we head through the late afternoon into
this evening will have to watch to our west as there could be a few
isolated storms over central PA that could make there way into our
eastern PA zones. Most likely, if anything occurs it will be
isolated. But that said, latest HRW NSSL model run is a more
aggressive developing more widespread convection toward the mid to
late evening as weakening convection from this midwest helps ignite
new storms over the area is it moves into PA after 0z. Given this is
the outlier scenario I kept POPs capped at 20% but this will have to
be watched. Otherwise, it will be another very warm and muggy night
with low temperatures at least as warm as this past overnight. Lows
will be mainly in the 70s except low 80s through most of the urban
corridor.

&&

.SHORT TERM /6 AM SUNDAY MORNING THROUGH 6 PM SUNDAY/...
The ongoing heat wave will continue into Sunday with rather extreme
heat indicies continuing area wide. Air temperatures are forecast to
be well into the mid to upper 90s outside of the highest terrain and
away from the immediate coast with dewpoints in the mid to upper
70s. Resulting heat index values are forecast to range from around
110-115 across most of central and southern NJ, SE PA, and Delmarva
away from the immediate coast. Across the Lehigh Valley, NW NJ, and
immediate coastal areas, widespread values of 105-110 can be
expected. Values from 95-100 are expected across the southern
Poconos. Otherwise, it should be a partly to mostly sunny but hazy
day. There will be a slow moving frontal boundary approaching from
the N/NW by the mid to late afternoon and this could result in some
showers and storms affecting areas mainly north of Philly through
the Lehigh Valley, the southern Poconos and NW NJ by late day.
Limiting factor will be capping and relatively dry layer just above
the cap which will tend to limit storm formation over eastern PA but
if any storms do develop they could become severe as ML CAPEs will
be 2500-3500+ j/kg with relatively steep mid level lapse rates as
well due to elevated mixed layer. Damaging winds would be the main
threat.

&&

.LONG TERM /SUNDAY NIGHT THROUGH SATURDAY/...
Summary: The main story in this period is the cold front
approaching and sliding through the region Monday into Tuesday,
which will bring potentially strong storms and heavy rain as
well as finally an end to the excessive heat.

Details:
Sunday night through Tuesday: cold front approaches the region,
especially starting on Monday. It still looks like it will take
some time for the front to move off shore as it may slow or even
stall over our region. Consequently, we could have multiple
rounds of thunderstorms, centered along the cold front. Ahead of
the front, the tropical maritime air mass will still be in
place, so heavy rain leading to flooding will remain a concern.
Also, lapse rates could be rather steep, increasing the threat
for strong, and possibly severe storms. An elevated mixed layer
could somewhat limit this threat, but will continue with the
mention of gusty winds for now. Though the tropical air mass
will still be in place for much of the region through peak
heating on Monday, persistent clouds should help to keep heat
index values below heat advisory/warning criteria for most
locations. The one possible exception is southern DE and
adjacent locations in MD, which currently has forecasted maximum
heat index values of 100 - 105 F. Not enough confidence at this
point to extend the excessive heat warning into Monday. By
Tuesday, our region should really start to see some relief
behind the cold front, with highs likely to be in the 70s and
lower 80s across the region, and dew points dropping into the
60s.

Wednesday through Saturday: In the wake of the cold front,
expect temperatures slightly below normal Wednesday and
Thursday, with highs from the mid 70s to mid 80s, and lows in
the 50s and 60s. By the time we get to Friday, southerly return
flow could develop, bringing our temperatures to near or even
slightly above normal. None the less, it still looks like it
will be quite a bit more comfortable next weekend as compared to
this weekend. As far as precipitation, the mid and upper level
flow becomes much weaker by mid week. Consequently, there
doesn't appear to be a significant chance for widespread
precipitation after Tuesday.

&&

.AVIATION /19Z SATURDAY THROUGH THURSDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.

Tonight...Mainly VFR. Winds generally southwest wind 6 knots or less.

Sunday...VFR expected. Hazy skies may limit visibility in some
areas. Isolated thunderstorms possible during the late afternoon
mainly from around PHL/PNE northward. West winds around 5-10
kts.

Outlook...

Sunday night through Tuesday night...Periods of heavy showers
and thunderstorms expected. Several periods of MVFR likely with
IFR possible. West to southwest winds around 5 kts, becoming
northwest on Tuesday at 5 to 10 kt.

Tuesday night through Thursday...VFR conditions are expected.
Northwest at 5 to 10 kt becoming light and variable.

&&

.MARINE...
Through Sunday, winds should generally remain out of the south and
southwest around 10 knots. During this time wave heights on our
ocean waters are expected to be 2 to 3 feet. Waves on Delaware Bay
will likely be 2 feet or less.

Outlook...

Sunday night through Tuesday...A brief period of northwesterly
wind gusts up to 25 kt is possible behind a cold front which
will bring an abrupt shift from southwesterly to northwesterly
winds. In addition, stronger winds and locally higher waves are
possible in the vicinity of any thunderstorms through this
period.

Wednesday and Thursday...Winds and seas are likely to remain
below SCA criteria.

Rip Currents...

A southerly wind around 10 MPH is expected for today along the
coasts of Delaware and New Jersey. Breaking waves around 2 feet
are anticipated along with a medium period southerly swell. As a
result, there should be a low risk for the development of
dangerous rip currents for today.

Wave/rip current conditions on Sunday are expected to be
similar to those of today along the coasts of New Jersey and
Delaware.

It appears as though there is some upwelling along the New
Jersey coast, mainly from Long Beach Island down to the Atlantic
City area. Water temperatures right along the shore are in the
middle and upper 60s in spots.

&&

.CLIMATE...
Record Maximum Temperatures for:

7/20
Site    High/Year            Low/Year
ABE      101/1980             76/1942
ACY       97/1991             79/2015
PHL       99/1930             81/2015
ILG      100/1895             79/2015
RDG      100/1980             77/1942
TTN       99/1980             78/2015
MPO       93/1980             69/1988
GED      100/1977             81/2013

7/21
Site    High/Year            Low/Year
ABE      101/1980             75/1980
ACY       99/1981             77/1991
PHL      103/1930             79/2017
ILG      102/1957             77/1972
RDG      102/2011             77/2011
TTN      101/1930             78/1980
MPO       94/2011             72/2011
GED      101/1957             79/2017

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Excessive Heat Warning until 10 PM EDT Sunday for PAZ054-055-
     060>062-070-071-101>106.
NJ...Excessive Heat Warning until 10 PM EDT Sunday for NJZ001-
     007>010-012>027.
DE...Excessive Heat Warning until 10 PM EDT Sunday for DEZ001>004.
MD...Excessive Heat Warning until 10 PM EDT Sunday for MDZ008-012-
     015-019-020.
MARINE...None.

&&

Synopsis...Johnson
Near Term...Fitzsimmons
Short Term...Fitzsimmons
Long Term...Johnson
Aviation...Fitzsimmons/Johnson
Marine...Fitzsimmons/Johnson
Climate...
Hazardous weather outlook, Jul 20, 3:33 PM EDT, 3 hours 21 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
333 PM EDT Sat Jul 20 2019

DEZ001>003-MDZ008-012-015-019-020-NJZ001-007>010-012-013-015>023-027-
PAZ054-055-060>062-070-071-101>106-211945-
New Castle-Kent-Inland Sussex-Cecil-Kent MD-Queen Annes-Talbot-
Caroline-Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex-
Western Monmouth-Mercer-Salem-Gloucester-Camden-
Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May-
Southeastern Burlington-Carbon-Monroe-Berks-Lehigh-Northampton-
Delaware-Philadelphia-Western Chester-Eastern Chester-
Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks-
333 PM EDT Sat Jul 20 2019

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 10 PM EDT SUNDAY...

This Hazardous Weather Outlook is for central Delaware, northern
Delaware, southern Delaware, northeast Maryland, central New
Jersey, northern New Jersey, northwest New Jersey, southern 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.

   Excessive Heat Warning.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Excessive Heat Warning.

Heavy rain, leading to flooding, is possible with storms Monday into
Tuesday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

DEZ004-NJZ014-024>026-211945-
Delaware Beaches-Eastern Monmouth-Atlantic Coastal Cape May-
Coastal Atlantic-Coastal Ocean-
333 PM EDT Sat Jul 20 2019

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 10 PM EDT SUNDAY...

This Hazardous Weather Outlook is for southern Delaware, 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.

   Excessive Heat Warning.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Excessive Heat Warning.

Heavy rain, leading to flooding, is possible with storms Monday into
Tuesday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

ANZ430-431-450>455-211945-
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-
333 PM EDT Sat Jul 20 2019

This Hazardous Weather Outlook is for Atlantic coastal waters and
Delaware Bay Waters.

.DAY ONE...This afternoon and tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Storms Monday into Tuesday may be capable of producing wind gusts
above 34 kt.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

In the hours before

Local storm report, Jul 20, 1:28 PM EDT, 5 hours 26 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
128 PM EDT SAT JUL 20 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0211 PM     HAIL             2 NNW FIVE POINTS       41.11N 74.87W
07/17/2019  E0.25 INCH       SUSSEX             NJ   PUBLIC

0535 PM     TSTM WND GST     2 S WEISENBERG TWP      40.58N 75.73W
07/17/2019  M53 MPH          LEHIGH             PA   TRAINED SPOTTER

            MEASURED ON A HANDHELD ANEMOMETER. TIME
            ESTIMATED.

0600 PM     TSTM WND GST     NORTH CATASAUQUA        40.66N 75.48W
07/17/2019  M48 MPH          NORTHAMPTON        PA   TRAINED SPOTTER

            TIME ESTIMATED.

0650 PM     TSTM WND DMG     HAMPTON TWP             41.11N 74.76W
07/17/2019                   SUSSEX             NJ   911 CALL CENTER

            TREE DOWN IN HAMPTON TWP. TIME ESTIMATED
            FROM RADAR.

0655 PM     TSTM WND DMG     2 NE BRASS CASTLE       40.78N 75.00W
07/17/2019                   WARREN             NJ   FIRE DEPT/RESCUE

            TREE LIMBS DOWN AT THE FAIRWAY VALLEY GOLF
            CLUB.

0700 PM     TSTM WND DMG     CHESTERTOWN             39.21N 76.07W
07/17/2019                   KENT               MD   911 CALL CENTER

            TREE DOWN IN CHESTERTOWN. TIME ESTIMATED
            FROM RADAR.

0700 PM     TSTM WND DMG     RISING SUN              39.70N 76.06W
07/17/2019                   CECIL              MD   911 CALL CENTER

            NUMEROUS TREES DOWN IN RISING SUN. TIME
            ESTIMATED FROM RADAR.

0703 PM     TSTM WND DMG     3 ESE FLEETWOOD         40.44N 75.77W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            TREE DOWN ON WIRES. TIME ESTIMATED FROM
            RADAR.

0703 PM     TSTM WND DMG     1 WSW PORT DEPOSIT      39.60N 76.12W
07/17/2019                   CECIL              MD   DEPT OF HIGHWAYS

            DOWNED UTILITY ON MD-276 BOTH DIRECTIONS AT
            MD-222. ROAD CLOSED. TIME ESTIMATED FROM
            RADAR.

0705 PM     TSTM WND DMG     2 NW LOCKWOOD           40.95N 74.75W
07/17/2019                   SUSSEX             NJ   911 CALL CENTER

            TREE DOWN ON N SHORE RD. TIME ESTIMATED FROM
            RADAR.

0705 PM     FLOOD            1 N READING             40.35N 75.92W
07/17/2019                   BERKS              PA   NEWSPAPER

            FLOODING ON OLEY ST.

0710 PM     LIGHTNING        1 E OLEY                40.39N 75.78W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            RESIDENCE STRUCK BY LIGHTNING WITH FIRE
            DEPARTMENT RESPONDING.

0715 PM     TSTM WND DMG     2 WNW BRANDAMORE        40.07N 75.86W
07/17/2019                   CHESTER            PA   FIRE DEPT/RESCUE

            POLES AND WIRES DOWN ON BIRDELL RD AT
            GOOSEBERRY LN. TIME ESTIMATED FROM RADAR.

0715 PM     FLASH FLOOD      1 NNE WEST LAWN         40.34N 75.98W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            5 VEHICLES REPORTED STRANDED IN FLOOD WATERS
            ON STATE HILL RD WITH RESCUES NEEDED.

0717 PM     FLASH FLOOD      1 NE MOUNT PENN         40.34N 75.88W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            WATER RESCUE ON THE 700 BLOCK OF CARSONIA
            AVE.

0717 PM     TSTM WND DMG     1 E PARKESBURG          39.96N 75.89W
07/17/2019                   CHESTER            PA   911 CALL CENTER

            REPORT OF POWER POLES AND WIRES BLOWN DOWN
            ONTO CARS NEAR TIMACULA RD AT ROUTE 372.
            TIME ESTIMATED FROM RADAR.

0720 PM     TSTM WND DMG     2 WNW MILLINGTON        39.26N 75.86W
07/17/2019                   KENT               MD   911 CALL CENTER

            TREE DOWN NEAR INTERSECTION OF ROUTES 291
            AND 301. TIME ESTIMATED FROM RADAR.

0720 PM     TSTM WND DMG     1 NNW CALN TWP          40.01N 75.76W
07/17/2019                   CHESTER            PA   FIRE DEPT/RESCUE

            POLES AND WIRES DOWN ON FISHERVILLE RD AT N
            BAILEY RD. TIME ESTIMATED FROM RADAR.

0721 PM     TSTM WND DMG     BIRDSBORO               40.26N 75.81W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            TREES AND WIRES DOWN. TIME ESTIMATED FROM
            RADAR.

0721 PM     FLASH FLOOD      1 SSE MUHLENBERG TWP    40.37N 75.93W
07/17/2019                   BERKS              PA   NEWSPAPER

            PORTION OF ROUTE 12 NEAR THE N 5TH ST EXIT
            UNDER WATER.

0727 PM     TSTM WND DMG     2 E BRECKNOCK TWP.      40.24N 75.95W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            TREE DOWN AND BLOCKING THE ROAD ON KURTZ
            MILL RD AT MORGANTOWN RD. TIME ESTIMATED
            FROM RADAR.

0728 PM     FLASH FLOOD      1 SSE MUHLENBERG TWP    40.37N 75.93W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            WATER RESCUE REPORTED ON THE WARREN ST
            BYPASS NEAR THE N 5TH ST EXIT.

0730 PM     LIGHTNING        2 N MOUNT PENN          40.36N 75.89W
07/17/2019                   BERKS              PA   NEWSPAPER

            HOUSE STRUCK BY LIGHTNING IN 600 BLOCK OF
            ANGORA RD. CREWS RESPONDING.

0731 PM     FLASH FLOOD      1 SW MOHNTON            40.27N 76.00W
07/17/2019                   BERKS              PA   TRAINED SPOTTER

            CREEK OVERFLOWED ONTO THE ROAD NEAR THE
            INTERSECTION OF HAMPSHIRE AND VERMONT RD.
            SEVERAL INCHES OF FLOWING WATER OVER ROAD.

0740 PM     HEAVY RAIN       WYOMISSING              40.33N 75.96W
07/17/2019  M2.50 INCH       BERKS              PA   PUBLIC

0740 PM     TSTM WND DMG     WYOMING                 39.12N 75.56W
07/17/2019                   KENT               DE   911 CALL CENTER

            SEVERAL REPORTS OF TREES AND WIRES DOWN NEAR
            WYOMING AND CAMDEN. TIME ESTIMATED FROM
            RADAR.

0744 PM     TSTM WND DMG     1 SSE DOVER             39.15N 75.52W
07/17/2019                   KENT               DE   911 CALL CENTER

            TREES AND WIRES DOWN IN SOUTH DOVER. TIME
            ESTIMATED FROM RADAR.

0745 PM     TSTM WND DMG     1 WNW LENAPE            39.92N 75.64W
07/17/2019                   CHESTER            PA   FIRE DEPT/RESCUE

            WIRES DOWN.

0746 PM     TSTM WND DMG     1 W EAST MARLBOROUGH TW 39.88N 75.73W
07/17/2019                   CHESTER            PA   FIRE DEPT/RESCUE

            POLES AND WIRES DOWN ON WOLLASTON RD AT W
            STREET RD.

0753 PM     FLASH FLOOD      DOUGLASSVILLE           40.26N 75.73W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            WATER RESCUE ON E BEN FRANKLIN HWY AT OLD
            SWEDE RD.

0755 PM     TSTM WND DMG     GIBBSTOWN               39.83N 75.27W
07/17/2019                   GLOUCESTER         NJ   PUBLIC

            MPING REPORT OF 3 INCH TREE LIMBS OR POWER
            POLES BROKEN.

0755 PM     TSTM WND GST     PHILADELPHIA INTERNATIO 39.88N 75.23W
07/17/2019  M51 MPH          PHILADELPHIA       PA   ASOS

            KPHL ASOS.

0755 PM     TSTM WND DMG     1 NE BERWYN             40.06N 75.42W
07/17/2019                   CHESTER            PA   FIRE DEPT/RESCUE

            POLES AND WIRES DOWN. TIME ESTIMATED FROM
            RADAR.

0756 PM     TSTM WND DMG     1 E LOGAN TWP.          39.80N 75.33W
07/17/2019                   GLOUCESTER         NJ   DEPT OF HIGHWAYS

            DOWNED TREE CLOSING 1 OR 2 LANES OF US-130
            NORTHBOUND AT NJ-44. TIME ESTIMATED FROM
            RADAR.

0757 PM     TSTM WND GST     NEWPORT                 39.30N 75.18W
07/17/2019  M52 MPH          CUMBERLAND         NJ   TRAINED SPOTTER

0800 PM     TSTM WND DMG     NEWPORT                 39.30N 75.18W
07/17/2019                   ANZ430             NJ   TRAINED SPOTTER

            SEVERAL REPORTS OF WIRES DOWN ACROSS THE
            COUNTY. TIME ESTIMATED.

0800 PM     MARINE TSTM WIND FORTESCUE               39.24N 75.18W
07/17/2019  M51 MPH          CUMBERLAND         NJ   MESONET

            NJWXNET STATION.

0800 PM     HEAVY RAIN       LEBANON                 40.64N 74.84W
07/17/2019  M2.30 INCH       HUNTERDON          NJ   PUBLIC

            FELL IN 45 MINUTES.

0800 PM     HEAVY RAIN       GILBERTSVILLE           40.32N 75.61W
07/17/2019  M1.20 INCH       MONTGOMERY         PA   TRAINED SPOTTER

            FELL IN 30 MINUTES.

0800 PM     FLASH FLOOD      2 E WHITE HOUSE STATION 40.61N 74.73W
07/17/2019                   HUNTERDON          NJ   DEPT OF HIGHWAYS

            US ROUTE 22 WAS CLOSED IN BOTH DIRECTIONS TO
            THE WEST OF RIDGE ROAD IN READINGTON
            TOWNSHIP.

0801 PM     TSTM WND GST     NEWTOWN SQUARE          39.99N 75.40W
07/17/2019  M58 MPH          DELAWARE           PA   MESONET

            MEASURED GUST TO 58MPH.

0806 PM     FLASH FLOOD      1 SSW EXETER TWP        40.31N 75.85W
07/17/2019                   BERKS              PA   FIRE DEPT/RESCUE

            SHELBOURNE RD FLOODED AFTER CREEK OVERFLOWED
            ONTO IT.

0809 PM     TSTM WND DMG     2 NNE MULLICA HILL      39.76N 75.20W
07/17/2019                   GLOUCESTER         NJ   PUBLIC

            MPING REPORT OF 3 INCH TREE LIMBS OR POWER
            POLES BROKEN.

0811 PM     TSTM WND DMG     1 NE TURNERSVILLE       39.78N 75.05W
07/17/2019                   GLOUCESTER         NJ   DEPT OF HIGHWAYS

            DOWNED TREE ON NJ-42 SOUTHBOUND EXIT RAMP TO
            COLLEGE DR. RAMP CLOSED. TIME ESTIMATED FROM
            RADAR.

0816 PM     TSTM WND DMG     COLLINGSWOOD            39.92N 75.08W
07/17/2019                   CAMDEN             NJ   TRAINED SPOTTER

            TREE DOWN ON A CAR ON HADDON AVE AT ZANE
            AVE. TIME ESTIMATED FROM RADAR.

0819 PM     TSTM WND GST     MILLVILLE MUNICIPAL AIR 39.37N 75.08W
07/17/2019  M48 MPH          CUMBERLAND         NJ   ASOS

            KMIV ASOS.

0825 PM     TSTM WND DMG     1 NW RANCOCAS           40.02N 74.88W
07/17/2019                   BURLINGTON         NJ   NWS EMPLOYEE

            SEVERAL VERY LARGE TREE BRANCHES DOWN IN
            WILLINGBORO.

0835 PM     TSTM WND DMG     3 S ROEBLING            40.08N 74.77W
07/17/2019                   BURLINGTON         NJ   PUBLIC

            DELAYED REPORT. MULTIPLE DOWNED TREES AND
            POLES INCLUDING A 60 FOOT SYCAMORE SNAPPED.
            TIME ESTIMATED FROM RADAR.

0840 PM     TSTM WND DMG     1 ENE EWING             40.28N 74.78W
07/17/2019                   MERCER             NJ   DEPT OF HIGHWAYS

            TREE DOWN AND BLOCKING A LANE OF NJ-31
            NORTHBOUND NEAR CR-636. TIME ESTIMATED FROM
            RADAR.

0841 PM     TSTM WND DMG     1 NNW MORRISVILLE       40.22N 74.78W
07/17/2019                   BUCKS              PA   DEPT OF HIGHWAYS

            DOWNED TREE ON PA-32. TIME ESTIMATED FROM
            RADAR.

0850 PM     TSTM WND DMG     2 ENE NORTH PRINCETON   40.37N 74.62W
07/17/2019                   MERCER             NJ   DEPT OF HIGHWAYS

            TREE DOWN AND BLOCKING ALL LANES OF NJ-27
            SOUTHBOUND SOUTH OF CR-605. TIME ESTIMATED
            FROM RADAR.

0855 PM     TSTM WND DMG     3 WNW HARBESON          38.72N 75.34W
07/17/2019                   SUSSEX             DE   911 CALL CENTER

            NUMEROUS TREES DOWN IN A LONG CORRIDOR
            BETWEEN GEORGETOWN AND LEWES. RADAR
            INDICATED STRONG DOWNBURST OR MICROBURST
            SIGNATURE. TIME ESTIMATED FROM RADAR.

0855 PM     TSTM WND DMG     1 SSW HEATHCOTE         40.38N 74.58W
07/17/2019                   MIDDLESEX          NJ   911 CALL CENTER

            DOWNED TREE BLOCKING A LANE ON US-1
            NORTHBOUND AT RAYMOND RD. TIME ESTIMATED
            FROM RADAR.

0905 PM     MARINE TSTM WIND 4 SE MYSTIC ISLAND      39.52N 74.32W
07/17/2019  M39 MPH          OCEAN              NJ   MESONET

            WEATHERFLOW SENSOR.

0906 PM     MARINE TSTM WIND 5 SE MYSTIC ISLAND      39.51N 74.32W
07/17/2019  M39 MPH          OCEAN              NJ   MESONET

            HADS SENSOR.

0907 PM     MARINE TSTM WIND 2 WSW SHIP BOTTOM       39.64N 74.21W
07/17/2019  M55 MPH          ANZ451             NJ   MESONET

            WEATHERFLOW SENSOR.

0908 PM     MARINE TSTM WIND 2 E WARETOWN            39.79N 74.17W
07/17/2019  M47 MPH          ANZ451             NJ   MESONET

            WEATHERFLOW SENSOR.

0910 PM     FLASH FLOOD      1 N SOMERVILLE          40.58N 74.62W
07/17/2019                   SOMERSET           NJ   DEPT OF HIGHWAYS

            US ROUTE 202 SOUTHBOUND WAS CLOSED NEAR US
            ROUTE 22 IN BRIDGEWATER TOWNSHIP DUE TO
            FLASH FLOODING.

0911 PM     MARINE TSTM WIND 2 SW BEACH HAVEN        39.54N 74.26W
07/17/2019  M45 MPH          OCEAN              NJ   MESONET

0914 PM     MARINE TSTM WIND BRICK                   40.01N 74.06W
07/17/2019  M49 MPH          OCEAN              NJ   MESONET

            WEATHERFLOW SENSOR.

0914 PM     MARINE TSTM WIND 1 NNE BEACH HAVEN       39.58N 74.23W
07/17/2019  M46 MPH          OCEAN              NJ   MESONET

0915 PM     FLASH FLOOD      2 SSW MARTINSVILLE      40.58N 74.57W
07/17/2019                   SOMERSET           NJ   DEPT OF HIGHWAYS

            FLOODING ON US ROUTE 22 AT INTERSTATE 287 IN
            BRIDGEWATER TOWNSHIP RESULTING IN RAMP
            CLOSURES.

0915 PM     FLOOD            1 E BURLINGTON TWP      40.06N 74.80W
07/17/2019                   BURLINGTON         NJ   DEPT OF HIGHWAYS

            FLOODING ON I-295 SOUTHBOUND NORTH OF EXIT
            47. ONE LANE CLOSED.

0918 PM     MARINE TSTM WIND INDIAN BEACH            38.68N 75.08W
07/17/2019  M44 MPH          SUSSEX             DE   MESONET

0920 PM     TSTM WND GST     BRICK                   40.01N 74.06W
07/17/2019  M50 MPH          OCEAN              NJ   MESONET

            MEASURED GUST TO 50MPH.

0921 PM     MARINE TSTM WIND 1 E BARNEGAT LIGHT      39.76N 74.09W
07/17/2019  M39 MPH          ANZ451             NJ   MESONET

            WEATHERFLOW SENSOR.

0922 PM     TSTM WND DMG     FREEHOLD TWP            40.24N 74.29W
07/17/2019                   MONMOUTH           NJ   911 CALL CENTER

            SEVERAL TREES AND POWER LINES DOWN IN
            FREEHOLD. TIME ESTIMATED FROM RADAR.

0925 PM     TSTM WND DMG     1 SSW COLTS NECK TWP    40.27N 74.20W
07/17/2019                   MONMOUTH           NJ   PUBLIC

            DELAYED REPORT. TREE DAMAGE AT HOMINY HILL
            GOLF CLUB. TIME ESTIMATED FROM RADAR.

0930 PM     MARINE TSTM WIND 1 ESE MANASQUAN         40.12N 74.03W
07/17/2019  M39 MPH          MONMOUTH           NJ   MESONET

0932 PM     TSTM WND DMG     OAKHURST                40.27N 74.02W
07/17/2019                   MONMOUTH           NJ   BROADCAST MEDIA

            DELAYED REPORT: A NUMBER OF TREES DOWN IN
            OAKHURST. BROADCAST MEDIA CREW ON SCENE
            REPORTING. TIME OF EVENT ESTIMATED FROM
            RADAR.

0940 PM     FLASH FLOOD      1 SSW HOPELAWN          40.52N 74.30W
07/17/2019                   MIDDLESEX          NJ   DEPT OF HIGHWAYS

            FLOODING OCCURRED ON US ROUTE 9 AT SMITH
            STREET IN WOODBRIDGE TOWNSHIP, RESULTING IN
            RAMP CLOSURES.

0943 PM     TSTM WND DMG     OCEANPORT               40.32N 74.01W
07/17/2019                   MONMOUTH           NJ   911 CALL CENTER

            TREES AND WIRES DOWN IN OCEANPORT. TIME
            ESTIMATED FROM RADAR.

0945 PM     FLOOD            2 SSW MARTINSVILLE      40.58N 74.57W
07/17/2019                   SOMERSET           NJ   DEPT OF HIGHWAYS

            FLOODING ON US-22 EASTBOUND RAMP TO I-287
            SOUTHBOUND. RAMP CLOSED AND DETOURED.

1000 PM     MARINE TSTM WIND 25 SE WILDWOOD CREST    38.69N 74.56W
07/17/2019  E58 MPH          ANZ475             NJ   PUBLIC

            STORM CAUSED DAMAGE TO A BOAT OFF THE COAST
            OF DELAWARE. THE MAST AND SOME SAILS WERE
            DAMAGED. TO CAUSE THAT MUCH DAMAGE, WIND HAD
            TO HAVE BEEN AT LEAST 50 KT. POSSIBLE WATER
            SPOUT BUT DATA ARE INCONCLUSIVE. TIME
            ESTIMATED.

&&
Special weather statement, Jul 20, 5:44 PM EDT, 1 hour 10 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
544 PM EDT Sat Jul 20 2019

NJZ001-202215-
Sussex-
544 PM EDT Sat Jul 20 2019

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN SUSSEX
COUNTY...

At 544 PM EDT, radar indicated strong thunderstorms were located
along a line extending from High Point to near Dingmans Ferry.
Movement was east at 15 mph.

Wind gusts up to 40 mph and pea size hail are possible with these
storms.

Locations impacted include...
Port Jervis, Montague, Milford, High Point and Hainesville.

LAT...LON 4128 7453 4115 7478 4117 7489 4128 7484
      4131 7479 4132 7480 4132 7479 4133 7476
      4135 7475 4136 7469
TIME...MOT...LOC 2144Z 256DEG 14KT 4133 7468 4127 7496

CMS
Special weather statement, Jul 20, 6:12 PM EDT, 42 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
612 PM EDT Sat Jul 20 2019

NJZ001-202245-
Sussex-
612 PM EDT Sat Jul 20 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN SUSSEX COUNTY...

At 612 PM EDT, a strong thunderstorm was located near Hainesville, or
near Montague, moving east at 20 mph.

Wind gusts up to 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Port Jervis, Montague, Sussex, Branchville, High Point, Pellettown,
Crandon Lakes and Hainesville.

If outdoors, consider seeking shelter inside a building.

LAT...LON 4127 7450 4106 7468 4115 7491 4121 7486
      4123 7487 4128 7484 4132 7479 4133 7476
      4135 7475 4135 7472 4136 7470
TIME...MOT...LOC 2212Z 289DEG 19KT 4122 7476

CMS
Special weather statement, Jul 20, 6:41 PM EDT, 13 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
641 PM EDT Sat Jul 20 2019

NJZ001-202315-
Sussex-
641 PM EDT Sat Jul 20 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN SUSSEX COUNTY...

At 641 PM EDT, a strong thunderstorm was located near Branchville, or
7 miles south of Montague, moving east at 15 mph.

Wind gusts up to 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Port Jervis, Montague, Franklin, Hamburg, Ogdensburg, Sussex,
Branchville, High Point, Pellettown and Hainesville.

If outdoors, consider seeking shelter inside a building.

LAT...LON 4129 7455 4107 7460 4115 7486 4125 7486
      4128 7484 4132 7479 4133 7476 4135 7475
      4136 7469
TIME...MOT...LOC 2241Z 274DEG 13KT 4120 7476

CMS

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 20, 5:44 PM EDTSpecial Weather StatementPHISussex31 min
Jul 20, 6:12 PM EDTSpecial Weather StatementPHISussex33 min
Jul 20, 6:41 PM EDTSpecial Weather StatementPHISussex34 min
Jul 20, 7:17 PM EDTSpecial Weather StatementPHISussex28 min
Jul 20, 7:31 PM EDTSpecial Weather StatementPHISussex29 min
Jul 20, 7:45 PM EDTSpecial Weather StatementPHISussex30 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2019Every severe thunderstorm warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.