Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 21, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 14, 2022, 4:42 PM EDT for New Castle County, Delaware; Gloucester County, Salem County, New Jersey; 4 counties in Pennsylvania. It was in force for 48 min. 4 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 14, 2022, 4:42 PM EDT (20:42 UTC)
- Expired
- Apr 14, 2022, 5:30 PM EDT
- In force
- 48 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties New Castle County, DE, Gloucester County, NJ, Salem County, NJ, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 79 km from the middle of the area, began a volume at 20:45 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 14, 4:43 PM EDT | HAIL 0.25 | Eagleville, PA | TIME ESTIMATED FROM RADAR. |
| Apr 14, 4:49 PM EDT | TSTM WND DMG | 1 Nne Pennsbury Twp, PA | TREES AND WIRES DOWN ALONG BRINTONS BRIDGE ROAD NEAR CHADDWYCK LANE. TIME ESTIMATED FROM RADAR. |
| Apr 14, 5:22 PM EDT | TSTM WND GST 59 | Philadelphia Internatio, PA | ASOS STATION KPHL PHILADELPHIA INTERNATIONAL AIRPORT. |
| Apr 14, 5:30 PM EDT | TSTM WND DMG | 2 Wnw Blackwood, NJ | WIRES DOWN ALONG NJ 41 IN DEPTFORD TOWNSHIP NEAR CR 534/GOOD INTENT ROAD. POWER OUTAGES TO HOMES/BUSINESSES AND TRAFFIC LIGHTS REPORTED IN THE AREA. TIME ESTIMATED FROM RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 8.7 hours before the alert went out and 208 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.
669
WUUS51 KPHI 142042
SVRPHI
DEC003-NJC015-033-PAC029-045-091-101-142130-
/O.NEW.KPHI.SV.W.0021.220414T2042Z-220414T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
442 PM EDT Thu Apr 14 2022
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern New Castle County in northern Delaware...
Northwestern Salem County in southern New Jersey...
Northwestern Gloucester County in southern New Jersey...
Southeastern Montgomery County in southeastern Pennsylvania...
Eastern Chester County in southeastern Pennsylvania...
Western Philadelphia County in southeastern Pennsylvania...
Delaware County in southeastern Pennsylvania...
* Until 530 PM EDT.
* At 442 PM EDT, severe thunderstorms were located along a line
extending from Lionville-Marchwood to Bear, 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...
Philadelphia, Camden, Wilmington, West Chester, Norristown,
Chester, Deptford, West Deptford, Phoenixville, West Norriton, East
Norriton, Pennsville, Bellmawr, Yeadon, Westtown, Woodbury, Pitman,
Carneys Point, Downingtown and Conshohocken.
This includes the following highways...
New Jersey Turnpike between exits 1 and 2.
Pennsylvania Turnpike between mile markers 312 and 339.
Northeast Extension between mile markers 21 and 26.
Interstate 95 in Pennsylvania between mile markers 0 and 22.
Interstate 95 in Delaware between mile markers 5 and 23.
Interstate 76 in Pennsylvania between mile markers 327 and 351.
Interstate 295 in New Jersey between mile markers 0 and 26.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
Interstate 476 in Pennsylvania between mile markers 0 and 19.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4008 7568 4024 7521 3995 7513 3989 7514
3986 7510 3974 7507 3960 7570
TIME...MOT...LOC 2042Z 249DEG 34KT 4004 7563 3962 7566
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse2 follow-up statements
385
WWUS51 KPHI 142101
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
501 PM EDT Thu Apr 14 2022
DEC003-NJC015-033-PAC029-045-091-101-142130-
/O.CON.KPHI.SV.W.0021.000000T0000Z-220414T2130Z/
New Castle DE-Salem NJ-Gloucester NJ-Montgomery PA-Chester PA-
Philadelphia PA-Delaware PA-
501 PM EDT Thu Apr 14 2022
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR NORTHEASTERN NEW CASTLE...NORTHWESTERN SALEM...NORTHWESTERN
GLOUCESTER...SOUTHEASTERN MONTGOMERY...SOUTHEASTERN CHESTER...WESTERN
PHILADELPHIA AND DELAWARE COUNTIES...
At 501 PM EDT, severe thunderstorms were located along a line
extending from Valley Forge to Delaware Memorial Bridge, moving east
at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Philadelphia, Camden, Wilmington, West Chester, Norristown, Chester,
Deptford, West Deptford, Phoenixville, West Norriton, East Norriton,
Pennsville, Bellmawr, Yeadon, Westtown, Woodbury, Pitman, Carneys
Point, Conshohocken and Folcroft.
This includes the following highways...
New Jersey Turnpike between exits 1 and 2.
Pennsylvania Turnpike between mile markers 316 and 339.
Northeast Extension between mile markers 21 and 26.
Interstate 95 in Pennsylvania between mile markers 0 and 22.
Interstate 95 in Delaware between mile markers 12 and 23.
Interstate 76 in Pennsylvania between mile markers 327 and 351.
Interstate 295 in New Jersey between mile markers 0 and 25.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
Interstate 476 in Pennsylvania between mile markers 0 and 19.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4011 7559 4024 7521 3995 7513 3989 7514
3985 7510 3974 7507 3965 7549 3973 7560
3994 7562 4001 7562
TIME...MOT...LOC 2101Z 248DEG 32KT 4010 7546 3968 7549
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
BAH117
WWUS51 KPHI 142120
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
520 PM EDT Thu Apr 14 2022
DEC003-NJC033-142130-
/O.CAN.KPHI.SV.W.0021.000000T0000Z-220414T2130Z/
New Castle DE-Salem NJ-
520 PM EDT Thu Apr 14 2022
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN NEW CASTLE AND
NORTHWESTERN SALEM COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 4017 7541 4024 7521 3995 7513 3989 7514
3985 7510 3974 7507 3969 7530 3971 7534
3979 7542 3980 7541 3982 7545 3997 7546
TIME...MOT...LOC 2120Z 249DEG 34KT 4016 7527 3974 7530
$$
NJC015-PAC029-045-091-101-142130-
/O.CON.KPHI.SV.W.0021.000000T0000Z-220414T2130Z/
Gloucester NJ-Montgomery PA-Chester PA-Philadelphia PA-Delaware PA-
520 PM EDT Thu Apr 14 2022
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR NORTHWESTERN GLOUCESTER...SOUTHEASTERN MONTGOMERY...NORTHEASTERN
CHESTER...WESTERN PHILADELPHIA AND DELAWARE COUNTIES...
At 520 PM EDT, severe thunderstorms were located along a line
extending from near Ambler to Swedesboro, moving east at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Philadelphia, Camden, Norristown, Chester, Deptford, West Deptford,
West Norriton, East Norriton, Bellmawr, Yeadon, Woodbury, Pitman,
Conshohocken, Folcroft, Ambler, Swarthmore, Paulsboro, Westville,
Narberth and Woodbury Heights.
This includes the following highways...
New Jersey Turnpike near exit 2.
Pennsylvania Turnpike between mile markers 326 and 339.
Northeast Extension between mile markers 21 and 26.
Interstate 95 in Pennsylvania between mile markers 1 and 22.
Interstate 76 in Pennsylvania between mile markers 327 and 351.
Interstate 295 in New Jersey between mile markers 9 and 25.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
Interstate 476 in Pennsylvania between mile markers 0 and 19.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4017 7541 4024 7521 3995 7513 3989 7514
3985 7510 3974 7507 3969 7530 3971 7534
3979 7542 3980 7541 3982 7545 3997 7546
TIME...MOT...LOC 2120Z 249DEG 34KT 4016 7527 3974 7530
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
BAHThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 3:28 PM EDT | Special Weather Statement | PHI | Warren | 32 min |
| Apr 14, 4:10 PM EDT | Special Weather Statement | PHI | Morris | 35 min |
| Apr 14, 4:16 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 44 min |
| Apr 14, 5:19 PM EDT | Special Marine Warning | PHI | 56 min | |
| Apr 14, 5:30 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 45 min |
| Apr 14, 5:32 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 43 min |
| Apr 14, 5:46 PM EDT | Special Marine Warning | PHI | 59 min | |
| Apr 14, 5:56 PM EDT | Special Marine Warning | PHI | 52 min | |
| Apr 14, 5:59 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 46 min |
| Apr 14, 6:10 PM EDT | Special Marine Warning | PHI | 20 min | |
| Apr 14, 6:35 PM EDT | Special Marine Warning | PHI | 27 min | |
| 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, 4:29 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Montgomery | 46 min |
| Apr 14, 5:06 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 24 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2022Severe Thunderstorm Warnings in New Jersey, 2022Severe Thunderstorm Warnings in Delaware, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.