Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 27, NWS Philadelphia/Mount Holly

April 26, 2019Burlington County, Hunterdon County, Mercer County, New Jersey; Bucks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 26, 2019, 5:44 PM EDT for Burlington County, Hunterdon County, Mercer County, New Jersey; Bucks County, Pennsylvania. It was in force for 61 min. 7 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: Apr 26, 2019, 5:44 PM EDT (21:44 UTC)
Expired: Apr 26, 2019, 6:45 PM EDT
In force: 61 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Burlington County, NJ, Hunterdon County, NJ, Mercer County, NJ, Bucks County, PA

The radar

The Philadelphia radar (KDIX), 47 km from the middle of the area, began a volume at 21:44 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
Apr 26, 5:45 PM EDT	TSTM WND DMG	Richlandtown, PA	TREES DOWN. TIME ESTIMATED FROM RADAR.
Apr 26, 5:49 PM EDT	TSTM WND DMG	Warminster, PA	SEVERAL TREES AND A FEW POWER LINES DOWN IN WARMINSTER. TIME ESTIMATED FROM RADAR.
Apr 26, 5:50 PM EDT	TSTM WND DMG	2 Se Warminster Twp., PA	DOWNED TREE AND WIRES ON PA-132 EASTBOUND AT DAVISVILLE ROAD. ONE LANE IS BLOCKED. TIME ESTIMATED FROM RADAR.
Apr 26, 5:55 PM EDT	TSTM WND DMG	1 Nnw Fellowship, NJ	SPORADIC TREE DAMAGE IN MAPLE SHADE TWP. ONE DOWNED TREE BLOCKED SEVERAL LANES OF STATE HIGHWAY 38 FOR A TIME. TIME ESTIMATED BY RADAR.
Apr 26, 6:10 PM EDT	TSTM WND DMG	Rancocas, NJ	TREES AND LARGE LIMBS REPORTED TO BE DOWN AND TO HAVE KNOCKED OUT POWER LINES. TIME ESTIMATED FROM RADAR.
Apr 26, 6:17 PM EDT	TSTM WND DMG	1 W Prospect Park, NJ	LARGE TREE DOWN IN PARK. TIME ESTIMATED FROM RADAR.
Apr 26, 6:19 PM EDT	TSTM WND DMG	Columbus, NJ	SMALL TREES AND POWER LINES DOWN. IMAGES SHARED WITH US ON SOCIAL MEDIA. TIME ESTIMATED FROM RADAR.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 26, 1:33 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.7 hours before the alert went out and 184 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 735 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 326 m²/s²
0-3 km storm-relative helicity: 471 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

059 
WUUS51 KPHI 262144
SVRPHI
NJC005-019-021-PAC017-262245-
/O.NEW.KPHI.SV.W.0027.190426T2144Z-190426T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
544 PM EDT FRI APR 26 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Hunterdon County in northwestern New Jersey...
  Mercer County in central New Jersey...
  Burlington County in southern New Jersey...
  Bucks County in southeastern Pennsylvania...

* Until 645 PM EDT.

* At 544 PM EDT, severe thunderstorms were located along a line
  extending from Pleasant Valley to near Monroe Township, moving east
  at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Philadelphia, Trenton, Bensalem, Evesham, Mount Laurel, Ewing,
  Willingboro, Medford, Lumberton, Princeton, Florence, Burlington,
  Bristol, Mount Holly, Perkasie, Doylestown, Byram, Riverside,
  Palmyra and Tabernacle.

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.

&&

A tornado watch remains in effect until 900 PM EDT for southern,
central and northwestern New Jersey...and southeastern Pennsylvania.

LAT...LON 3977 7479 3979 7490 3988 7493 3995 7502
      3998 7501 3999 7506 4005 7498 4012 7496
      4029 7527 4053 7535 4069 7500 4078 7489
      4056 7473 4051 7480 4038 7473 4038 7462
      4033 7462 4024 7448 4018 7461 3990 7446
TIME...MOT...LOC 2144Z 271DEG 41KT 4054 7528 3966 7494 

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

jjm

2 follow-up statements

611 
WWUS51 KPHI 262216
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
616 PM EDT FRI APR 26 2019

PAC017-262225-
/O.CAN.KPHI.SV.W.0027.000000T0000Z-190426T2245Z/
Bucks PA-
616 PM EDT FRI APR 26 2019

...THE SEVERE THUNDERSTORM WARNING FOR BUCKS COUNTY IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 3979 7473 4009 7486 4013 7482 4014 7474
      4016 7472 4025 7484 4050 7507 4054 7507
      4060 7517 4069 7500 4078 7489 4056 7473
      4051 7480 4038 7473 4038 7462 4033 7462
      4024 7449 4018 7461 3990 7446
TIME...MOT...LOC 2215Z 247DEG 18KT 4058 7503 3965 7450 

$$

NJC005-019-021-262245-
/O.CON.KPHI.SV.W.0027.000000T0000Z-190426T2245Z/
Hunterdon NJ-Mercer NJ-Burlington NJ-
616 PM EDT FRI APR 26 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR HUNTERDON...MERCER AND NORTHEASTERN BURLINGTON COUNTIES...

At 615 PM EDT, severe thunderstorms were located along a line
extending from near Milford to near Wading River, moving east at 20
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Trenton, Ewing, Lumberton, Princeton, Florence, Burlington, Bristol,
Mount Holly, Tabernacle, Hightstown, Flemington, Bordentown, High
Bridge, Presidential Lakes Estates, Clinton, Pennington, Yardley,
Hopewell, Tullytown and Glen Gardner.

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.

&&

A tornado watch remains in effect until 900 PM EDT for southern,
central and northwestern New Jersey...and southeastern Pennsylvania.

LAT...LON 3979 7473 4009 7486 4013 7482 4014 7474
      4016 7472 4025 7484 4050 7507 4054 7507
      4060 7517 4069 7500 4078 7489 4056 7473
      4051 7480 4038 7473 4038 7462 4033 7462
      4024 7449 4018 7461 3990 7446
TIME...MOT...LOC 2215Z 247DEG 18KT 4058 7503 3965 7450 

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

jjm

788 
WWUS51 KPHI 262234
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
634 PM EDT FRI APR 26 2019

NJC005-262243-
/O.CAN.KPHI.SV.W.0027.000000T0000Z-190426T2245Z/
Burlington NJ-
634 PM EDT FRI APR 26 2019

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BURLINGTON COUNTY
IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 900 PM EDT for central New
Jersey.

LAT...LON 4024 7449 4018 7461 4015 7459 4014 7460
      4017 7466 4029 7471 4055 7492 4069 7500
      4078 7489 4056 7473 4051 7480 4038 7473
      4038 7462 4033 7462
TIME...MOT...LOC 2233Z 271DEG 41KT 4058 7481 3965 7428 

$$

NJC019-021-262245-
/O.CON.KPHI.SV.W.0027.000000T0000Z-190426T2245Z/
Hunterdon NJ-Mercer NJ-
634 PM EDT FRI APR 26 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR EASTERN HUNTERDON AND CENTRAL MERCER COUNTIES...

At 633 PM EDT, severe thunderstorms were located along a line
extending from near White House Station to near Beach Haven West,
moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Princeton, Hightstown, Flemington, High Bridge, Clinton, Hopewell,
Glen Gardner, Hampton, Lebanon, Califon, Edinburg, Windsor,
Mercerville-Hamilton Square, Annandale, White House Station,
Kingston, White Horse, Princeton Junction, Princeton North and
Yardville-Groveville.

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.

&&

A tornado watch remains in effect until 900 PM EDT for central New
Jersey.

LAT...LON 4024 7449 4018 7461 4015 7459 4014 7460
      4017 7466 4029 7471 4055 7492 4069 7500
      4078 7489 4056 7473 4051 7480 4038 7473
      4038 7462 4033 7462
TIME...MOT...LOC 2233Z 271DEG 41KT 4058 7481 3965 7428 

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

jjm

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 3:41 AM EDT	Gale Watch	PHI		12 hr
Apr 26, 10:15 AM EDT	Special Weather Statement	PHI	Gloucester, Salem	30 min
Apr 26, 10:53 AM EDT	Special Weather Statement	PHI	Camden, Cumberland, Gloucester	37 min
Apr 26, 11:19 AM EDT	Special Weather Statement	PHI	Cumberland, Salem	41 min
Apr 26, 11:22 AM EDT	Special Marine Warning	PHI		23 min
Apr 26, 11:54 AM EDT	Special Weather Statement	PHI	Burlington, Camden	51 min
Apr 26, 12:30 PM EDT	Special Weather Statement	PHI	Middlesex, Monmouth	45 min
Apr 26, 12:41 PM EDT	Special Weather Statement	PHI	Atlantic, Cumberland	34 min
Apr 26, 1:44 PM EDT	Special Marine Warning	PHI		61 min
Apr 26, 1:53 PM EDT	Special Weather Statement	PHI	Atlantic, Cape May	37 min
Apr 26, 2:17 PM EDT	Special Weather Statement	PHI	Cape May	28 min
Apr 26, 2:33 PM EDT	Areal Flood Advisory	PHI	Atlantic, Cape May	2 hr
Apr 26, 2:52 PM EDT	Special Marine Warning	PHI		53 min
Apr 26, 3:34 PM EDT	Special Marine Warning	PHI		56 min
Apr 26, 3:54 PM EDT	Gale Warning	PHI		23 hr
Apr 26, 4:28 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Gloucester, Salem	47 min
Apr 26, 4:29 PM EDT	Special Marine Warning	PHI		61 min
Apr 26, 4:59 PM EDT	Areal Flood Advisory	PHI	Salem	4 hr
Apr 26, 5:07 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Cumberland, Gloucester, Salem	38 min
Apr 26, 5:15 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Cumberland, Gloucester, Hunterdon, Mercer and 1 more	4 hr
Apr 26, 5:16 PM EDT	Special Marine Warning	PHI		44 min
Apr 26, 5:37 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 1 more	38 min
Apr 26, 5:56 PM EDT	Special Marine Warning	PHI		64 min
Apr 26, 5:57 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Gloucester, Hunterdon, Mercer and 4 more	4 hr
Apr 26, 6:12 PM EDT	Special Weather Statement	PHI	Atlantic, Cape May	33 min
Apr 26, 6:14 PM EDT	Areal Flood Advisory	PHI	Atlantic, Cape May, Cumberland	4 hr
Apr 26, 6:22 PM EDT	Special Weather Statement	PHI	Middlesex, Monmouth, Morris, Ocean, Somerset	113 min
Apr 26, 6:34 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Warren	2 hr
Apr 26, 6:39 PM EDT	Special Marine Warning	PHI		57 min
Apr 26, 11:45 AM EDT	Special Weather Statement	PHI	Philadelphia	45 min
Apr 26, 3:51 PM EDT	Special Weather Statement	PHI	Berks, Chester	69 min
Apr 26, 4:19 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester	56 min
Apr 26, 4:53 PM EDT	Severe Thunderstorm Warning	PHI	Delaware	52 min
Apr 26, 5:07 PM EDT	Special Weather Statement	PHI	Bucks, Montgomery, Philadelphia	53 min
Apr 26, 5:17 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	43 min
Apr 26, 5:28 PM EDT	Severe Thunderstorm Warning	PHI	Montgomery, Philadelphia	47 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2019 Severe Thunderstorm Warnings in Pennsylvania, 2019 Every 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.