Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 80, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 29, 2019, 3:10 PM EDT for Bucks County, Lehigh County, Northampton County, Pennsylvania; Hunterdon County, Warren County, New Jersey. It was in force for 65 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
- May 29, 2019, 3:10 PM EDT (19:10 UTC)
- Expired
- May 29, 2019, 4:15 PM EDT
- In force
- 65 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 70.0 mph
Counties Hunterdon County, NJ, Warren County, NJ, Bucks County, PA, Lehigh County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 74 km from the middle of the area, began a volume at 19:09 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, 3:19 PM EDT | HAIL 1 | Upper Saucon Twp, PA | TIME ESTIMATED FROM RADAR. |
| May 29, 3:20 PM EDT | HAIL 1 | Quakertown, PA | |
| May 29, 3:21 PM EDT | HAIL 2 | Coopersburg, PA | PHOTOS OF HAIL LARGER THAN GOLF BALLS IN COOPERSBURG. TIME ESTIMATED FROM RADAR. |
| May 29, 3:26 PM EDT | HAIL 2 | 5 Sw Pleasant Valley, PA | HAIL FELL FOR APPROX 10 MINUTES. WIDESPREAD QUARTER TO HALF DOLLAR SIZED HAIL WITH 2 INCH HAIL INCLUDED. |
| May 29, 3:43 PM EDT | HAIL 1 | Bedminster, PA | |
| May 29, 3:55 PM EDT | HAIL 1.5 | Quakertown, PA | |
| May 29, 3:58 PM EDT | HAIL 1.75 | Lumberville, PA |
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, 7.2 hours before the alert went out and 193 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.
002
WUUS51 KPHI 291910
SVRPHI
NJC019-041-PAC017-077-095-292015-
/O.NEW.KPHI.SV.W.0080.190529T1910Z-190529T2015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
310 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...
Southeastern Lehigh County in eastern Pennsylvania...
Bucks County in southeastern Pennsylvania...
South central Northampton County in eastern Pennsylvania...
* Until 415 PM EDT.
* At 310 PM EDT, a severe thunderstorm was located over Emmaus, or
near Allentown, moving east at 35 mph.
HAZARD...70 mph wind gusts and ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
considerable tree damage. Wind damage is also likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Bethlehem, Quakertown, Perkasie, Doylestown, Byram, Souderton,
Bedminster, Hellertown, Flemington, Chalfont, Tinicum, Clinton, New
Hope, Dublin, Ferndale, Frenchtown, Lebanon, Milford, Riegelsville
and Stockton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect until 800 PM EDT for central and
northwestern New Jersey...and eastern and southeastern Pennsylvania.
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted, act quickly and move to a
place of safety inside a sturdy structure such as a basement or small
interior room.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4034 7489 4034 7494 4031 7490 4024 7491
4031 7531 4040 7545 4062 7542 4064 7483
TIME...MOT...LOC 1910Z 278DEG 29KT 4051 7548
HAIL...1.50IN
WIND...70MPH
$$
Iovino1 follow-up statement
023
WWUS51 KPHI 291933
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
333 PM EDT Wed May 29 2019
NJC041-PAC077-095-291942-
/O.CAN.KPHI.SV.W.0080.000000T0000Z-190529T2015Z/
Warren NJ-Lehigh PA-Northampton PA-
333 PM EDT Wed May 29 2019
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WARREN...
SOUTHEASTERN LEHIGH AND SOUTH CENTRAL NORTHAMPTON COUNTIES IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved into
upper Bucks County. Therefore, the warning has been cancelled for
Lehigh, Northampton and Warren Counties.
A tornado watch remains in effect until 800 PM EDT for central and
northwestern New Jersey...and eastern and southeastern Pennsylvania.
LAT...LON 4034 7489 4034 7494 4031 7490 4024 7491
4034 7528 4042 7543 4051 7538 4057 7528
4058 7484
TIME...MOT...LOC 1932Z 278DEG 29KT 4049 7525
$$
NJC019-PAC017-292015-
/O.CON.KPHI.SV.W.0080.000000T0000Z-190529T2015Z/
Hunterdon NJ-Bucks PA-
333 PM EDT Wed May 29 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR SOUTHWESTERN HUNTERDON AND NORTHWESTERN BUCKS COUNTIES...
At 332 PM EDT, a severe thunderstorm was located near Pleasant
Valley, or 14 miles southeast of Allentown, moving east at 35 mph.
HAZARD...Two inch hail and 70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
considerable tree damage. Wind damage is also likely to
mobile homes, roofs, and outbuildings.
Locations impacted include...
Quakertown, Perkasie, Doylestown, Byram, Bedminster, Flemington,
Tinicum, New Hope, Dublin, Ferndale, Frenchtown, Milford, Stockton,
Pleasant Valley, Revere, Lumberville, Ottsville, Sergeantsville,
Pipersville and Springtown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect until 800 PM EDT for central and
northwestern New Jersey...and eastern and southeastern Pennsylvania.
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4034 7489 4034 7494 4031 7490 4024 7491
4034 7528 4042 7543 4051 7538 4057 7528
4058 7484
TIME...MOT...LOC 1932Z 278DEG 29KT 4049 7525
HAIL...2.00IN
WIND...70MPH
$$
IovinoThe 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 | Monroe | 37 min |
| May 28, 9:17 PM EDT | River Flood Warning | PHI | Chester | 101 min |
| May 29, 3:18 AM EDT | Flash Flood Watch | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 18 hr |
| 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, 3:38 PM EDT | Tornado Warning | PHI | Bucks | 37 min |
| May 29, 3:43 PM EDT | Flash Flood Warning | PHI | Carbon, Monroe | 4 hr |
| May 29, 3:43 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 62 min |
| May 29, 3:43 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 47 min |
| May 29, 4:04 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 41 min |
| May 29, 4:09 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 51 min |
| May 29, 4:13 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Northampton | 47 min |
| May 29, 4:16 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 27 min |
| May 29, 4:18 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 42 min |
| May 29, 4:27 PM EDT | Areal Flood Advisory | PHI | Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more | 51 min |
| May 29, 4:35 PM EDT | Special Weather Statement | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 25 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, 4:53 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 67 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, 5:14 PM EDT | Flash Flood Warning | PHI | Berks, Bucks, Carbon, Lehigh, Monroe, Northampton | 3 hr |
| May 29, 5:23 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Monroe, Montgomery and 1 more | 34 min |
| May 29, 5:27 PM EDT | Flash Flood Warning | PHI | Bucks, Chester, Montgomery, Philadelphia | 4 hr |
| May 29, 5:33 PM EDT | Tornado Warning | PHI | Bucks | 27 min |
| May 29, 5:39 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 66 min |
| May 29, 5:49 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 41 min |
| May 29, 6:06 PM EDT | Flash Flood Warning | PHI | Bucks | 4 hr |
| May 29, 6:06 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 24 min |
| May 29, 6:22 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 53 min |
| May 29, 6:35 PM EDT | Flash Flood Warning | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 3 hr |
| May 29, 7:12 PM EDT | Areal Flood Advisory | PHI | Chester | 3 hr |
| 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, 4:28 PM EDT | Special Weather Statement | PHI | Morris | 32 min |
| May 29, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Mercer, Middlesex, Monmouth, Ocean | 53 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, 5:45 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, 6:29 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Ocean | 61 min |
| 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, 7:15 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 |
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.