Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 139, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 20, 2019, 4:06 PM EDT for 5 counties in New Jersey. It was in force for 54 min. 1 report 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
- Jun 20, 2019, 4:06 PM EDT (20:06 UTC)
- Expired
- Jun 20, 2019, 5:00 PM EDT
- In force
- 54 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Burlington County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 55 km from the middle of the area, began a volume at 20:10 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 20, 4:16 PM EDT | TSTM WND DMG | 1 Ese Perrineville, NJ | TREES DOWN ON SWEETMANS LANE AND EMORY COURT BLOCKING THE ROADWAY. 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 one storm report to this severe thunderstorm warning; the first came 10 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, 8.1 hours before the alert went out and 118 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 264 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 609 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.4
The text
As transmitted.
137
WUUS51 KPHI 202006
SVRPHI
NJC005-021-023-025-029-202100-
/O.NEW.KPHI.SV.W.0139.190620T2006Z-190620T2100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
406 PM EDT Thu Jun 20 2019
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northwestern Ocean County in southern New Jersey...
Southeastern Mercer County in central New Jersey...
North central Burlington County in southern New Jersey...
Monmouth County in central New Jersey...
Southern Middlesex County in northern New Jersey...
* Until 500 PM EDT.
* At 405 PM EDT, a severe thunderstorm was located over Windsor, or
11 miles east of Trenton, moving northeast at 35 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Trenton, Long Branch, Sandy Hook, Middletown, Old Bridge, East
Brunswick, Sayreville, Marlboro, Manalapan, Tinton Falls, Holmdel,
Red Bank, Matawan, Jamesburg, Hightstown, Highlands, Cranbury,
Allentown, Roosevelt and Brownville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to 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.
&&
LAT...LON 4029 7398 4005 7456 4024 7474 4053 7425
4050 7428 4046 7426 4044 7420 4046 7418
4041 7402 4044 7399 4048 7402 4048 7401
4044 7398 4042 7400 4039 7398 4038 7401
4038 7397 4035 7397 4032 7404 4033 7398
TIME...MOT...LOC 2005Z 235DEG 32KT 4021 7455
HAIL...0.75IN
WIND...60MPH
$$
Gorse3 follow-up statements
040
WWUS51 KPHI 202024
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
424 PM EDT Thu Jun 20 2019
NJC005-202034-
/O.CAN.KPHI.SV.W.0139.000000T0000Z-190620T2100Z/
Burlington NJ-
424 PM EDT Thu Jun 20 2019
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL BURLINGTON
COUNTY IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4009 7446 4033 7458 4053 7425 4050 7428
4046 7426 4044 7420 4046 7418 4041 7402
4044 7399 4048 7402 4048 7401 4044 7398
4042 7400 4039 7398 4038 7401 4038 7397
4035 7397 4032 7404 4033 7398 4029 7398
TIME...MOT...LOC 2024Z 239DEG 32KT 4029 7435
$$
NJC021-023-025-029-202100-
/O.CON.KPHI.SV.W.0139.000000T0000Z-190620T2100Z/
Ocean NJ-Mercer NJ-Monmouth NJ-Middlesex NJ-
424 PM EDT Thu Jun 20 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR NORTH CENTRAL OCEAN...EAST CENTRAL MERCER...MONMOUTH AND SOUTHERN
MIDDLESEX COUNTIES...
At 424 PM EDT, a severe thunderstorm was located over Yorketown, or
13 miles south of New Brunswick, moving northeast at 35 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Long Branch, Sandy Hook, Middletown, Old Bridge, East Brunswick,
Sayreville, Marlboro, Manalapan, Tinton Falls, Holmdel, Red Bank,
Matawan, Jamesburg, Hightstown, Highlands, Cranbury, Roosevelt,
Brownville, East Freehold and Six Flags Theme Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent 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.
&&
LAT...LON 4009 7446 4033 7458 4053 7425 4050 7428
4046 7426 4044 7420 4046 7418 4041 7402
4044 7399 4048 7402 4048 7401 4044 7398
4042 7400 4039 7398 4038 7401 4038 7397
4035 7397 4032 7404 4033 7398 4029 7398
TIME...MOT...LOC 2024Z 239DEG 32KT 4029 7435
HAIL...0.75IN
WIND...60MPH
$$
Gorse374
WWUS51 KPHI 202045
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
445 PM EDT Thu Jun 20 2019
NJC021-029-202055-
/O.CAN.KPHI.SV.W.0139.000000T0000Z-190620T2100Z/
Ocean NJ-Mercer NJ-
445 PM EDT Thu Jun 20 2019
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL OCEAN AND EAST
CENTRAL MERCER COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 4018 7425 4032 7426 4039 7448 4052 7426
4050 7428 4046 7426 4044 7420 4046 7418
4041 7402 4043 7400 4047 7402 4047 7401
4044 7398 4039 7398 4038 7401 4038 7397
4035 7397 4032 7404 4033 7398 4031 7397
TIME...MOT...LOC 2045Z 234DEG 32KT 4045 7424 4038 7415 4029 7408
$$
NJC023-025-202100-
/O.CON.KPHI.SV.W.0139.000000T0000Z-190620T2100Z/
Monmouth NJ-Middlesex NJ-
445 PM EDT Thu Jun 20 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR NORTHEASTERN MONMOUTH AND EAST CENTRAL MIDDLESEX COUNTIES...
At 445 PM EDT, severe thunderstorms were located along a line
extending from near Matawan to Middletown to Tinton Falls, moving
northeast at 35 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Long Branch, Sandy Hook, Middletown, Old Bridge, East Brunswick,
Sayreville, Marlboro, Tinton Falls, Holmdel, Red Bank, Matawan,
Highlands, Brownville, East Freehold, Robertsville, Navesink,
Lincroft, Morganville, South River and Eatontown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4018 7425 4032 7426 4039 7448 4052 7426
4050 7428 4046 7426 4044 7420 4046 7418
4041 7402 4043 7400 4047 7402 4047 7401
4044 7398 4039 7398 4038 7401 4038 7397
4035 7397 4032 7404 4033 7398 4031 7397
TIME...MOT...LOC 2045Z 234DEG 32KT 4045 7424 4038 7415 4029 7408
HAIL...0.75IN
WIND...60MPH
$$
Staarmann811
WWUS51 KPHI 202055
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
455 PM EDT Thu Jun 20 2019
NJC023-025-202104-
/O.EXP.KPHI.SV.W.0139.000000T0000Z-190620T2100Z/
Monmouth NJ-Middlesex NJ-
455 PM EDT Thu Jun 20 2019
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MONMOUTH AND EAST
CENTRAL MIDDLESEX COUNTIES WILL EXPIRE AT 500 PM EDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However, heavy
rain is still occuring with these thunderstorms. Do not drive
through flooded roads.
LAT...LON 4018 7425 4032 7426 4039 7448 4052 7426
4050 7428 4046 7426 4044 7420 4046 7418
4041 7402 4043 7400 4047 7402 4047 7401
4044 7398 4039 7398 4038 7401 4038 7397
4035 7397 4032 7404 4033 7398 4031 7397
TIME...MOT...LOC 2054Z 235DEG 32KT 4049 7417 4042 7408 4033 7401
$$
StaarmannWhat 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 Jun 20, 3:47 PM EDT, 19 minutes earlier.
Area forecast discussion, Jun 20, 3:47 PM EDT, 19 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
347 PM EDT Thu Jun 20 2019
.SYNOPSIS...
An area of low pressure will move to our north tonight, pulling a
cold front across the area tonight, with a second front or surface
trough moving across the area Friday morning. Steady northwest flow
will develop Friday into Saturday, before high pressure briefly
affects the area Saturday night, before shifting offshore and to our
south Sunday. A warm front will lift across the area Sunday night
into Monday as an area of low pressure moves across the Great Lakes
region into southeast Canada. High pressure builds to our south
through the middle of next week, while a surface trough develops
across the east coast.
&&
.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
Several round of showers and thunderstorms can be expected this
afternoon, this evening, and overnight across the area. Each is tied
to a short wave/vorticity impulse that will move across the area at
different times. The first is moving across the area this afternoon.
The second will come by sunset this evening, while the third will
come overnight around or after midnight.
An area of low pressure will move to our north tonight, which will
bring a cold front across the area. Until this front moves across
the area, the airmass will remain very moist with PW values 1.75-
2.00 inches. Meanwhile, CAPE values have reached 1,500-2,000+ J/kg
for much of the area this afternoon now that the warm front has
lifted north of the area. With mid level flow increasing to 30-40
knots, bulk shear has increased to 35-45 knots. This should be
sufficient to allow for some storms to become severe, potentially
producing damaging winds and hail.
As mentioned, the airmass remains very moist, so any showers and
thunderstorms could produce very heavy rainfall in a short amount of
time. An additional 1-3 inches is possible for some locations, which
would produce additional flash flooding, especially those areas that
received a lot of rainfall last night. Therefore the Flash Flood
Watch remains in effect into the overnight hours.
There is also a chance for patchy fog to develop later tonight,
especially for northeast Pennsylvania and northern New Jersey where
any winds become lighter and rain falls this afternoon and evening.
We do not expect dense fog as there will likely be some wind and
enough mixing with any additional short wave/vorticity impulses and
showers moving through.
&&
.SHORT TERM /6 AM FRIDAY MORNING THROUGH SATURDAY NIGHT/...
The low pressure will continue moving to our northeast offshore of
New England through Friday. It will drag a surface trough across the
area during the morning while a short wave/vorticity impulse moves
across the area. As this impulse moves across during the morning,
another round of showers will impact the area through the morning
hours. There is very little, if any instability, so we do not expect
thunderstorms. However, PW values remain 1.50-1.75 inches until the
through moves through, so some showers could have a brief period of
moderate to heavy rainfall. Once the showers move through the area,
skies will begin to clear out and winds will become gusty as there
will be a tight gradient with low pressure to our northeast and high
pressure to our northwest. This will likely lead to be quite gusty
during the day Friday, possibly reaching 20-30 mph.
High pressure remains to our west for Friday night into Saturday,
briefly building over the area Saturday night. This will keep dry
conditions across the area through Friday night and Saturday. Winds
will likely gust again Saturday, but not as gusty as Friday,
generally 15-20 mph.
&&
.LONG TERM /SUNDAY THROUGH THURSDAY/...
Overview...
We will finally see some changes in the long term, as the mid-
Atlantic will for a few days find itself downstream of a ridge over
the Great Lakes and upstream a departing trough associated with a
departing surface low. This will mean a well-deserved multi-day
break in rainfall across our area, as high pressure builds in to the
northwest and guides any ridge-riding convective disturbances to our
south. And such disturbances will exist, as the ridging to our west
is not very long in wavelength, and ample troughing continues to
exist further west, which will keep the pattern active over the
Plains and Midwest. That then raises questions for our weather going
further into next week. It appears likely the ridge to our west will
start to flatten out, with renewed troughing pushing into the Great
Lakes. Thus, it is likely we will be dealing with another frontal
system by early next week. Early indications are that we will not
deal with such a prolonged and impactful stretch of unsettled
weather. However, the one constant in the hemispheric pattern
remains a seemingly unbreakable block over Greenland, which should
briefly relax over the weekend but then looks to build right back in
next week. Because of this, even as longwave ridging attempts to
build over the CONUS, we continue to see frequent troughing over
southern Canada with the trough unable to lift out. This leaves us
vulnerable to additional frontal disturbances even in a pattern
which is trying to trend warmer and drier overall. We may get there
eventually, but for now after the break over the weekend it appears
next week will be on the unsettled side with a return of higher
humidity and occasional shower and storm chances.
Dailies...
Sunday... A pleasant and quiet weekend awaits us as high
pressure moves overhead. The trough from Friday will still not
have fully pulled away by Saturday, and flow will remain
northerly or northwesterly, so this will keep temperatures a
little below normal even with sunshine. By Sunday, winds turn
out of the west as the trough pushes further off to the east,
and we start to advect in warmer air. So Sunday looks several
degrees warmer than Saturday, with highs mostly in the mid 80s
and dew points creeping up a little but still comfortable.
Monday-Tuesday... A warm frontal passage is expected Sunday night or
early Monday as low pressure tracks into the Great Lakes. Time
constraints prevented any detailed analysis for this period, but the
chance for showers and thunderstorms looks to return. In addition,
behind the warm front, higher dew points and warmer temperatures are
expected, and some areas may see highs approach 90 by Monday.
Mid-week/beyond... Low confidence. Guidance is widely spread on
whether the early week system or an additional frontal system may
continue to impact the region, or if high pressure and hotter
weather will build in. No strong preference at this time.
&&
.AVIATION /20Z THURSDAY THROUGH TUESDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.
This afternoon-tonight...There remains a chance of showers and
thunderstorms this afternoon which could temporarily lower ceilings
and visibility across the area. Outside of showers and
thunderstorms, VFR conditions will continue through this afternoon
into this evening. Winds will remain southwest for the rest of the
afternoon into this evening.
Another round of showers is expected later this evening and
overnight. Isolated thunderstorms are also possible. Conditions are
expected to lower to MVFR later this evening and possibly IFR
overnight for some areas. Winds will shift to the west through the
overnight and become light for some areas.
Friday...MVFR or IFR conditions will start the forecast for Friday
morning. A slow improvement is expected through the morning into the
afternoon to VFR. Winds will become gusty out of the northwest by
later morning into the afternoon. Wind could gust 20-25 knots.
Outlook...
Friday night-Saturday night...VFR conditions expected.
Northwest winds may gust 15-20 knots during the day Saturday.
Sunday... VFR. High confidence. Southwesterly winds 5 to 10 kt.
Sunday night-Monday... Periods of cig and vsby restrictions
possible along with scattered showers and tstms. Southwest winds
of 5 to 10 kt.
&&
.MARINE...
Timing of the Small Craft Advisory has been adjusted as winds
along the Delaware and New Jersey Atlantic coastal waters are
already gusting around 25 knots. The northern New Jersey
Atlantic coastal waters was started earlier as well as seas may
build sooner. Delaware Bay was left as it is.
All advisories will continue through the day Friday. An
occasional wind gust may reach close to 35 knots on Friday.
Outlook...
Friday night-Saturday night...Conditions expected to drop below
advisory levels by Friday night and remain below advisory
levels through Saturday night.
Sunday-Tuesday... Sub-SCA conditions expected for most of the
weekend into early next week.
Rip Currents...
There is a low risk for the development of dangerous rip currents at
the NJ and DE ocean beaches today. Winds become south with waves in
the surf zone about 3 feet.
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flash Flood Watch until 10 PM EDT this evening for PAZ054-055-
060>062-070-071-101>106.
NJ...Flash Flood Watch until 10 PM EDT this evening for NJZ001-
007>010-012>027.
DE...Flash Flood Watch until 10 PM EDT this evening for DEZ001.
MD...Flash Flood Watch until 10 PM EDT this evening for MDZ008-012.
MARINE...Small Craft Advisory until 6 PM EDT Friday for ANZ451>455.
Small Craft Advisory from 10 PM this evening to 6 PM EDT
Friday for ANZ450.
Small Craft Advisory from 8 PM this evening to 6 PM EDT Friday
for ANZ430-431.
&&
Synopsis...Robertson
Near Term...Robertson
Short Term...Robertson
Long Term...O'Brien
Aviation...Robertson/O'Brien
Marine...Robertson/O'BrienHazardous weather outlook, Jun 20, 3:53 PM EDT, 13 minutes before
Hazardous Weather Outlook National Weather Service Mount Holly NJ 353 PM EDT Thu Jun 20 2019 DEZ001-MDZ008-012-NJZ001-007>010-012-013-015>023-027-PAZ054-055- 060>062-070-071-101>106-212000- New Castle-Cecil-Kent MD-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- 353 PM EDT Thu Jun 20 2019 ...FLASH FLOOD WATCH IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for northern 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. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. 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. DEZ002-003-MDZ015-019-020-212000- Kent-Inland Sussex-Queen Annes-Talbot-Caroline- 353 PM EDT Thu Jun 20 2019 This Hazardous Weather Outlook is for central Delaware, southern Delaware and northeast Maryland. .DAY ONE...This afternoon and tonight. The probability of widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. 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. NJZ014-025-026-212000- Eastern Monmouth-Coastal Atlantic-Coastal Ocean- 353 PM EDT Thu Jun 20 2019 ...FLASH FLOOD WATCH 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. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. 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. DEZ004-212000- Delaware Beaches- 353 PM EDT Thu Jun 20 2019 This Hazardous Weather Outlook is for southern Delaware. .DAY ONE...This afternoon and tonight. The probability of widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ430-431-450>455-212000- 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- 353 PM EDT Thu Jun 20 2019 This Hazardous Weather Outlook is for Atlantic coastal waters and Delaware Bay Waters. .DAY ONE...This afternoon and tonight. The probability of widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ024-212000- Atlantic Coastal Cape May- 353 PM EDT Thu Jun 20 2019 ...FLASH FLOOD WATCH 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. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. 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.
In the hours before
Local storm report, Jun 20, 2:16 PM EDT, 1 hour 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
216 PM EDT THU JUN 20 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0145 PM HEAVY RAIN BROOKLAWN 39.88N 75.12W
06/20/2019 E4.50 INCH CAMDEN NJ PUBLIC
&&
TCDSpecial weather statement, Jun 20, 2:26 PM EDT, 1 hour 40 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
226 PM EDT Thu Jun 20 2019
DEZ001-002-MDZ008-012-NJZ009-010-015>019-021-PAZ060>062-070-071-
101>106-202000-
Kent-New Castle-Cecil-Kent-Salem-Camden-Mercer-Hunterdon-Northwestern
Burlington-Cumberland-Somerset-Gloucester-Lower Bucks-Lehigh-Eastern
Montgomery-Western Chester-Northampton-Philadelphia-Upper
Bucks-Western Montgomery-Delaware-Eastern Chester-Berks-
226 PM EDT Thu Jun 20 2019
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NEW CASTLE...
NORTHWESTERN KENT...NORTHERN KENT...CECIL...NORTHWESTERN CAMDEN...
WESTERN MERCER...SOUTHWESTERN SOMERSET...NORTHWESTERN CUMBERLAND...
SALEM...HUNTERDON...GLOUCESTER...NORTHWESTERN BURLINGTON...
MONTGOMERY...SOUTHEASTERN BERKS...SOUTHEASTERN LEHIGH...BUCKS...
CHESTER...PHILADELPHIA...DELAWARE AND SOUTH CENTRAL NORTHAMPTON
COUNTIES...
At 225 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Zionsville to Marshallton to near
Newtown. Movement was east at 25 mph.
Wind gusts up to 50 mph and half inch hail are possible with these
storms.
Locations impacted include...
Philadelphia, Allentown, Trenton, Camden, Wilmington, Newark,
Bridgeton, Middletown, West Chester, Elkton, Somerville, Gloucester
City, Calvert, Bethlehem, Bensalem, Bridgewater, Mount Laurel, Ewing,
Norristown and Chester.
Torrential rainfall is also occurring with these storms, and may
cause localized flooding. These storms are headed into areas that
have ongoing flooding from heavy rains overnight. Do not drive your
vehicle through flooded roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
LAT...LON 3943 7600 3952 7598 3955 7608 3962 7614
4001 7588 4056 7563 4067 7455 4004 7483
3933 7532 3946 7554 3957 7551 3962 7557
3972 7551 3969 7553 3962 7561 3959 7557
3946 7559 3928 7542 3926 7622
TIME...MOT...LOC 1825Z 262DEG 21KT 4046 7547 3997 7568 3934 7611
MeolaSpecial weather statement, Jun 20, 3:21 PM EDT, 45 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
321 PM EDT Thu Jun 20 2019
NJZ021>023-201945-
Cumberland-Atlantic-Cape May-
321 PM EDT Thu Jun 20 2019
...A STRONG THUNDERSTORM WILL AFFECT ATLANTIC...NORTHEASTERN
CUMBERLAND AND NORTH CENTRAL CAPE MAY COUNTIES...
At 321 PM EDT, a strong thunderstorm was located over Cumberland, or
near Vineland, moving northeast at 40 mph.
Wind gusts up to 45 mph and half inch hail are possible with this
storm.
Locations impacted include...
Vineland, Millville, Cumberland, Pleasantville, Hammonton, Absecon,
Buena, Egg Harbor City, Weymouth, Estell Manor, Corbin City, Pomona,
Mays Landing, Elwood-Magnolia, Dorothy, Mizpah, English Creek, Folsom
and Collings Lakes.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 3935 7467 3926 7492 3936 7503 3936 7504
3937 7505 3938 7507 3951 7497 3973 7474
3964 7465 3963 7466 3962 7463 3945 7446
3944 7446
TIME...MOT...LOC 1921Z 226DEG 34KT 3940 7491
StaarmannSpecial weather statement, Jun 20, 3:36 PM EDT, 30 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
336 PM EDT Thu Jun 20 2019
NJZ010-012-013-015-019-020-027-PAZ106-202030-
Northwestern Burlington-Ocean-Western
Monmouth-Somerset-Middlesex-Southeastern Burlington-Mercer-Lower
Bucks-
336 PM EDT Thu Jun 20 2019
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT OCEAN...MERCER...
CENTRAL BURLINGTON...SOUTHEASTERN SOMERSET...SOUTHWESTERN MONMOUTH...
MIDDLESEX AND SOUTHEASTERN BUCKS COUNTIES...
At 336 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near New Hope to near Bristol to
Jacksonville to near Tabernacle to near Atsion. Movement was east at
35 mph.
Wind gusts up to 40 mph and pea size hail are possible with these
storms.
Locations impacted include...
Toms River, Trenton, New Brunswick, Somerset, Lakewood, Old Bridge,
Bensalem, Jackson, Howell, East Brunswick, South Brunswick, North
Brunswick, Marlboro, Manalapan, Ewing, Medford, Lumberton, Princeton,
Florence and Beachwood.
Frequent cloud to ground lightning is occurring with some of the
storms. Lightning can strike 10 miles away from a thunderstorm. Seek
a safe shelter inside a building or vehicle.
LAT...LON 3980 7422 3979 7483 4001 7483 4010 7496
4032 7500 4034 7494 4035 7486 4037 7486
4038 7481 4040 7480 4055 7440 4030 7423
4005 7415
TIME...MOT...LOC 1936Z 247DEG 31KT 4037 7490 4013 7488 4005 7475 3982
7475 3974 7478
GorseLocal storm report, Jun 20, 3:41 PM EDT, 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
341 PM EDT THU JUN 20 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0303 PM TSTM WND DMG WEST CONSHOHOCKEN 40.07N 75.32W
06/20/2019 MONTGOMERY PA PUBLIC
MATSONFORD ROAD BLOCKED IN BOTH DIRECTIONS
BETWEEN I-76 AND I-476 DUE TO A FALLEN TREE.
&&
STAARMANNSpecial weather statement, Jun 20, 3:48 PM EDT, 18 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
348 PM EDT Thu Jun 20 2019
MDZ008-012-202015-
Cecil-Kent-
348 PM EDT Thu Jun 20 2019
...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN KENT AND
SOUTHEASTERN CECIL COUNTIES...
At 348 PM EDT, a strong thunderstorm was located over Kennedyville,
or 12 miles southeast of Aberdeen Proving Ground, moving east at 25
mph.
Wind gusts up to 40 mph and pea size hail are possible with this
storm.
Locations impacted include...
Cecilton, Millington, Warwick, Sassafras, Massey, Bohemias Mills,
Kennedyville and Galena.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
LAT...LON 3951 7578 3925 7575 3924 7580 3926 7587
3925 7588 3928 7610 3934 7612
TIME...MOT...LOC 1948Z 276DEG 23KT 3931 7600
GorseThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 8:36 PM EDT | Areal Flood Advisory | PHI | Ocean | 2 hr |
| Jun 19, 8:39 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Ocean | 2 hr |
| Jun 19, 11:19 PM EDT | Flash Flood Warning | PHI | Camden, Gloucester, Salem | 5 hr |
| Jun 19, 11:25 PM EDT | Areal Flood Warning | PHI | Burlington | 5 hr |
| Jun 20, 1:49 AM EDT | Flash Flood Warning | PHI | Burlington | 3 hr |
| Jun 20, 4:32 AM EDT | Marine Dense Fog Advisory | PHI | 5 hr | |
| Jun 20, 4:38 AM EDT | Areal Flood Warning | PHI | Burlington, Camden, Gloucester | 14 hr |
| Jun 20, 2:26 PM EDT | Special Weather Statement | PHI | Gloucester, Hunterdon, Salem, Somerset | 94 min |
| Jun 20, 2:33 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 57 min |
| Jun 20, 2:48 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Cumberland, Gloucester, Hunterdon, Mercer and 1 more | 4 hr |
| Jun 20, 3:20 PM EDT | Flash Flood Warning | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Mercer and 4 more | 4 hr |
| Jun 20, 3:21 PM EDT | Special Weather Statement | PHI | Atlantic | 24 min |
| Jun 20, 3:36 PM EDT | Special Weather Statement | PHI | Burlington, Mercer, Middlesex, Ocean | 54 min |
| Jun 20, 4:05 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Middlesex, Monmouth, Ocean | 4 hr |
| Jun 20, 4:23 PM EDT | Special Weather Statement | PHI | Cumberland | 37 min |
| Jun 20, 4:24 PM EDT | Areal Flood Advisory | PHI | Mercer, Middlesex, Monmouth, Morris, Somerset | 3 hr |
| Jun 20, 4:26 PM EDT | Special Marine Warning | PHI | 64 min | |
| Jun 20, 4:40 PM EDT | Special Weather Statement | PHI | Ocean | 35 min |
| Jun 20, 4:44 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 31 min |
| Jun 20, 5:10 PM EDT | Special Weather Statement | PHI | Atlantic | 35 min |
| Jun 20, 5:15 PM EDT | Special Marine Warning | PHI | 90 min | |
| Jun 20, 6:50 PM EDT | Areal Flood Warning | PHI | Burlington | 10 hr |
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.