Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 20, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 14, 2022, 4:29 PM EDT for Bucks County, Chester County, Montgomery County, Pennsylvania. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 14, 2022, 4:29 PM EDT (20:29 UTC)
- Expired
- Apr 14, 2022, 5:15 PM EDT
- In force
- 46 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Bucks County, PA, Chester County, PA, Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 95 km from the middle of the area, began a volume at 20:31 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.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 8.5 hours before the alert went out and 220 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
- 1433 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
726
WUUS51 KPHI 142029
SVRPHI
PAC017-029-091-142115-
/O.NEW.KPHI.SV.W.0020.220414T2029Z-220414T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
429 PM EDT Thu Apr 14 2022
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northwestern Montgomery County in southeastern Pennsylvania...
Northwestern Bucks County in southeastern Pennsylvania...
Northeastern Chester County in southeastern Pennsylvania...
* Until 515 PM EDT.
* At 428 PM EDT, a severe thunderstorm was located over Royersford,
or 17 miles north of West Chester, moving northeast at 35 mph.
Another storm in central Montgomery County crossing into Bucks
County may also turn severe.
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...
Pottstown, Phoenixville, Lansdale, Quakertown, Perkasie,
Doylestown, Souderton, Collegeville, Royersford, Chalfont, Trappe,
Hatfield, Dublin, Schwenksville, Green Lane, Fricks, Spring Mount,
Cedarville, Skippack and Stowe.
This includes Northeast Extension between mile markers 27 and 42.
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 4011 7560 4024 7570 4049 7531 4027 7510
TIME...MOT...LOC 2028Z 235DEG 30KT 4022 7556
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse3 follow-up statements
480
WWUS51 KPHI 142043
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
443 PM EDT Thu Apr 14 2022
PAC029-142052-
/O.CAN.KPHI.SV.W.0020.000000T0000Z-220414T2115Z/
Chester PA-
443 PM EDT Thu Apr 14 2022
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CHESTER COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4049 7531 4027 7510 4014 7551 4016 7550
4015 7553 4016 7553 4018 7555 4021 7556
4020 7557 4029 7563
TIME...MOT...LOC 2042Z 235DEG 30KT 4029 7543
$$
PAC017-091-142115-
/O.CON.KPHI.SV.W.0020.000000T0000Z-220414T2115Z/
Montgomery PA-Bucks PA-
443 PM EDT Thu Apr 14 2022
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR CENTRAL MONTGOMERY AND NORTHWESTERN BUCKS COUNTIES...
At 442 PM EDT, a severe thunderstorm was located over Spring Mount,
or 21 miles south of Allentown, 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...
Phoenixville, Lansdale, Quakertown, Perkasie, Doylestown, Souderton,
Collegeville, Royersford, Chalfont, Trappe, Hatfield, Dublin,
Schwenksville, Green Lane, Fricks, Spring Mount, Gilbertsville,
Skippack, Telford and Sellersville.
This includes Northeast Extension between mile markers 27 and 42.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4049 7531 4027 7510 4014 7551 4016 7550
4015 7553 4016 7553 4018 7555 4021 7556
4020 7557 4029 7563
TIME...MOT...LOC 2042Z 235DEG 30KT 4029 7543
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
BAH784
WWUS51 KPHI 142053
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
453 PM EDT Thu Apr 14 2022
PAC017-091-142115-
/O.CON.KPHI.SV.W.0020.000000T0000Z-220414T2115Z/
Montgomery PA-Bucks PA-
453 PM EDT Thu Apr 14 2022
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR CENTRAL MONTGOMERY AND WEST CENTRAL BUCKS COUNTIES...
At 453 PM EDT, a severe thunderstorm was located over Lansdale, or 18
miles northwest of Philadelphia, moving northeast at 35 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Phoenixville, Lansdale, Perkasie, Doylestown, Souderton,
Collegeville, Royersford, Chalfont, Trappe, Hatfield, Dublin,
Schwenksville, Fricks, Spring Mount, Skippack, Telford, Sellersville,
Spring City, North Wales and New Britain.
This includes Northeast Extension between mile markers 27 and 36.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4041 7524 4027 7510 4014 7551 4016 7550
4015 7552 4018 7555 4021 7556 4020 7557
4024 7554
TIME...MOT...LOC 2053Z 247DEG 29KT 4026 7527
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
BAH612
WWUS51 KPHI 142111
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
511 PM EDT Thu Apr 14 2022
PAC017-091-142121-
/O.EXP.KPHI.SV.W.0020.000000T0000Z-220414T2115Z/
Montgomery PA-Bucks PA-
511 PM EDT Thu Apr 14 2022
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MONTGOMERY AND WEST
CENTRAL BUCKS COUNTIES WILL EXPIRE AT 515 PM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
LAT...LON 4041 7524 4027 7510 4014 7551 4016 7550
4015 7552 4018 7555 4021 7556 4020 7557
4024 7554
TIME...MOT...LOC 2111Z 235DEG 30KT 4034 7512
$$
BAHThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 2:13 PM EDT | Special Weather Statement | PHI | Carbon | 32 min |
| Apr 14, 2:37 PM EDT | Special Weather Statement | PHI | Berks | 38 min |
| Apr 14, 2:53 PM EDT | Special Weather Statement | PHI | Lehigh, Northampton | 22 min |
| Apr 14, 4:42 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 48 min |
| Apr 14, 5:06 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 24 min |
| Apr 14, 5:30 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 45 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2022Every severe thunderstorm warning in 2022
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.