Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 87, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 29, 2019, 4:13 PM EDT for Hunterdon County, Warren County, New Jersey; Bucks County, Lehigh County, Northampton County, Pennsylvania. It was in force for 47 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
- May 29, 2019, 4:13 PM EDT (20:13 UTC)
- Expired
- May 29, 2019, 5:00 PM EDT
- In force
- 47 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Hunterdon County, NJ, Warren County, NJ, Bucks County, PA, Lehigh County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 109 km from the middle of the area, began a volume at 20:15 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 |
|---|---|---|---|
| May 29, 4:37 PM EDT | TSTM WND DMG | Harmony Twp, NJ | DELAYED REPORT OF SEVERAL TREES DOWN IN HARMONY TWP. TIME ESTIMATED FROM RADAR. |
| May 29, 5:05 PM EDT | TSTM WND DMG | Lehigh Twp, PA | WIRES DOWN, ALONG WITH LARGE BRANCHES. 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 |
|---|---|---|---|
| May 29, 1:10 PM EDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 8.2 hours before the alert went out and 198 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 415 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- -157 m²/s²
- 0-3 km storm-relative helicity
- -76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
723
WUUS51 KPHI 292013
SVRPHI
NJC019-041-PAC017-077-095-292100-
/O.NEW.KPHI.SV.W.0087.190529T2013Z-190529T2100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
413 PM EDT Wed May 29 2019
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Central Hunterdon County in northwestern New Jersey...
Southwestern Warren County in northwestern New Jersey...
Northeastern Lehigh County in eastern Pennsylvania...
North central Bucks County in southeastern Pennsylvania...
Central Northampton County in eastern Pennsylvania...
* Until 500 PM EDT.
* At 412 PM EDT, a severe thunderstorm was located over Beersville,
or 8 miles north of Allentown, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to
roofs, siding, trees, and power lines is possible.
* Locations impacted include...
Allentown, Easton, Bethlehem, Forks, Northampton, Wilson,
Washington, Hellertown, Nazareth, High Bridge, Clinton, Bath,
Harmony, Alpha, Glen Gardner, Belfast, Hampton, Frenchtown, West
Easton and Milford.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect until 800 PM EDT for northwestern
New Jersey...and eastern, southeastern and northeastern Pennsylvania.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4074 7486 4051 7494 4064 7558 4081 7553
4082 7549
TIME...MOT...LOC 2012Z 283DEG 27KT 4072 7546
HAIL...1.00IN
WIND...60MPH
$$
NC2 follow-up statements
146
WWUS51 KPHI 292034
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
434 PM EDT Wed May 29 2019
PAC077-292043-
/O.CAN.KPHI.SV.W.0087.000000T0000Z-190529T2100Z/
Lehigh PA-
434 PM EDT Wed May 29 2019
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LEHIGH COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A tornado watch remains in effect until 800 PM EDT for northwestern
New Jersey...and eastern and southeastern Pennsylvania.
LAT...LON 4074 7486 4051 7494 4061 7538 4065 7541
4081 7539
TIME...MOT...LOC 2033Z 283DEG 27KT 4068 7525
$$
NJC019-041-PAC017-095-292100-
/O.CON.KPHI.SV.W.0087.000000T0000Z-190529T2100Z/
Hunterdon NJ-Warren NJ-Bucks PA-Northampton PA-
434 PM EDT Wed May 29 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR CENTRAL HUNTERDON...SOUTHWESTERN WARREN...NORTH CENTRAL BUCKS AND
SOUTHEASTERN NORTHAMPTON COUNTIES...
At 433 PM EDT, a severe thunderstorm was located over Wilson, or over
Easton, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Easton, Bethlehem, Forks, Wilson, Washington, Nazareth, High Bridge,
Clinton, Bath, Harmony, Alpha, Glen Gardner, Belfast, Hampton,
Frenchtown, West Easton, Milford, Tatamy, Bloomsbury and
Riegelsville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect until 800 PM EDT for northwestern
New Jersey...and eastern and southeastern Pennsylvania.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4074 7486 4051 7494 4061 7538 4065 7541
4081 7539
TIME...MOT...LOC 2033Z 283DEG 27KT 4068 7525
HAIL...1.00IN
WIND...60MPH
$$
NC152
WWUS51 KPHI 292053
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
453 PM EDT Wed May 29 2019
NJC019-041-PAC017-095-292103-
/O.EXP.KPHI.SV.W.0087.000000T0000Z-190529T2100Z/
Hunterdon NJ-Warren NJ-Bucks PA-Northampton PA-
453 PM EDT Wed May 29 2019
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL HUNTERDON...
SOUTHWESTERN WARREN...NORTH CENTRAL BUCKS AND SOUTHEASTERN
NORTHAMPTON COUNTIES WILL EXPIRE AT 500 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with this thunderstorm.
A tornado watch remains in effect until 800 PM EDT for northwestern
New Jersey...and eastern and southeastern Pennsylvania.
LAT...LON 4074 7486 4051 7494 4061 7538 4065 7541
4081 7539
TIME...MOT...LOC 2053Z 283DEG 27KT 4054 7622
$$
NCThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 8:23 PM EDT | Tornado Warning | PHI | Warren | 37 min |
| May 28, 8:30 PM EDT | Tornado Warning | PHI | Morris, Sussex | 30 min |
| May 28, 8:34 PM EDT | Special Marine Warning | PHI | 41 min | |
| May 28, 8:35 PM EDT | Severe Thunderstorm Warning | PHI | Cape May, Cumberland | 55 min |
| May 28, 8:37 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 25 min |
| May 28, 8:44 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Somerset, Sussex, Warren | 61 min |
| May 28, 8:50 PM EDT | Areal Flood Advisory | PHI | Cape May | 78 min |
| May 28, 8:59 PM EDT | Special Marine Warning | PHI | 61 min | |
| May 28, 9:33 PM EDT | Areal Flood Advisory | PHI | Morris, Somerset | 63 min |
| May 28, 9:47 PM EDT | Special Marine Warning | PHI | 43 min | |
| May 28, 9:52 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 23 min |
| May 28, 9:57 PM EDT | Special Marine Warning | PHI | 44 min | |
| May 28, 10:03 PM EDT | Special Weather Statement | PHI | Atlantic | 12 min |
| May 28, 10:28 PM EDT | Special Marine Warning | PHI | 58 min | |
| May 28, 10:30 PM EDT | Special Weather Statement | PHI | Ocean | 45 min |
| May 28, 10:33 PM EDT | Special Weather Statement | PHI | Burlington | 27 min |
| May 28, 10:34 PM EDT | Special Weather Statement | PHI | Monmouth | 26 min |
| May 28, 11:00 PM EDT | Special Weather Statement | PHI | Burlington, Ocean | 30 min |
| May 28, 11:07 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 38 min |
| May 28, 11:21 PM EDT | Special Marine Warning | PHI | 39 min | |
| May 28, 11:35 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 25 min |
| May 28, 11:57 PM EDT | Special Marine Warning | PHI | 48 min | |
| May 29, 3:18 AM EDT | Flash Flood Watch | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 7 more | 18 hr |
| May 29, 3:10 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 65 min |
| May 29, 3:38 PM EDT | Tornado Warning | PHI | Hunterdon | 37 min |
| May 29, 3:43 PM EDT | Flash Flood Warning | PHI | Sussex, Warren | 4 hr |
| May 29, 3:43 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 47 min |
| May 29, 4:04 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Somerset | 41 min |
| May 29, 4:09 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 51 min |
| May 29, 4:16 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 27 min |
| May 29, 4:27 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Morris, Sussex, Warren | 51 min |
| May 29, 4:28 PM EDT | Special Weather Statement | PHI | Morris | 32 min |
| May 29, 4:35 PM EDT | Special Weather Statement | PHI | Sussex | 25 min |
| May 29, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Mercer, Middlesex, Monmouth, Ocean | 53 min |
| May 29, 4:53 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer | 67 min |
| May 29, 5:01 PM EDT | Special Weather Statement | PHI | Hunterdon, Morris | 29 min |
| May 29, 5:03 PM EDT | Special Marine Warning | PHI | 57 min | |
| May 29, 5:14 PM EDT | Flash Flood Warning | PHI | Hunterdon, Morris, Sussex, Warren | 3 hr |
| May 29, 5:23 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Sussex, Warren | 34 min |
| May 29, 5:27 PM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset | 4 hr |
| May 29, 5:33 PM EDT | Tornado Warning | PHI | Burlington, Mercer, Monmouth | 27 min |
| May 29, 5:39 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Hunterdon, Mercer, Middlesex, Monmouth, Ocean and 1 more | 66 min |
| May 29, 5:45 PM EDT | Special Weather Statement | PHI | Hunterdon, Morris, Sussex, Warren | 30 min |
| May 29, 6:01 PM EDT | Special Marine Warning | PHI | 59 min | |
| May 29, 6:02 PM EDT | Special Weather Statement | PHI | Salem | 28 min |
| May 29, 6:06 PM EDT | Flash Flood Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 4 hr |
| May 29, 6:06 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 24 min |
| May 29, 6:29 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Ocean | 61 min |
| May 29, 6:35 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Ocean | 3 hr |
| May 29, 6:35 PM EDT | Special Marine Warning | PHI | 55 min | |
| May 29, 7:08 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Camden, Cumberland, Gloucester, Salem | 52 min |
| May 29, 7:12 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Ocean and 1 more | 3 hr |
| May 29, 7:15 PM EDT | Special Marine Warning | PHI | 60 min | |
| May 29, 7:25 PM EDT | Special Marine Warning | PHI | 65 min | |
| May 29, 7:33 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Cape May, Cumberland, Ocean | 42 min |
| May 29, 7:35 PM EDT | Special Marine Warning | PHI | 85 min | |
| May 28, 9:17 PM EDT | River Flood Warning | PHI | Chester | 101 min |
| May 29, 2:19 PM EDT | Special Weather Statement | PHI | Lehigh | 41 min |
| May 29, 2:26 PM EDT | Special Weather Statement | PHI | Montgomery | 34 min |
| May 29, 2:30 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 60 min |
| May 29, 2:48 PM EDT | Special Weather Statement | PHI | Monroe | 27 min |
| May 29, 2:59 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 46 min |
| May 29, 3:17 PM EDT | Tornado Warning | PHI | Bucks, Lehigh | 28 min |
| May 29, 3:29 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe, Northampton | 46 min |
| May 29, 3:29 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 46 min |
| May 29, 3:43 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 62 min |
| May 29, 4:18 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 42 min |
| May 29, 4:42 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 48 min |
| May 29, 4:50 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Chester, Lehigh, Montgomery, Northampton | 40 min |
| May 29, 4:55 PM EDT | Flash Flood Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery | 4 hr |
| May 29, 5:08 PM EDT | Tornado Warning | PHI | Bucks, Montgomery | 27 min |
| May 29, 5:49 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 41 min |
| May 29, 6:22 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 53 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2019Severe 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.