Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 191, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 2, 2019, 7:12 PM EDT for 5 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
- Jul 2, 2019, 7:12 PM EDT (23:12 UTC)
- Expired
- Jul 2, 2019, 8:00 PM EDT
- In force
- 48 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Berks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 80 km from the middle of the area, began a volume at 23:15 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 |
|---|---|---|---|
| Jul 2, 7:58 PM EDT | TSTM WND DMG | West Chester, PA | NUMEROUS TREES DOWN. TIME ESTIMATED FROM RADAR. |
| Jul 2, 8:03 PM EDT | TSTM WND DMG | West Goshen, PA | TREES AND WIRES DOWN. |
| Jul 2, 8:05 PM EDT | TSTM WND DMG | 1 Sw Newtown Square, PA | PICTURES SHOW SOME TREES SNAPPED OR UPROOTED AND SEVERAL POWER POLES SNAPPED IN THE BISHOP HOLLOW ROAD AREA. TIME ESTIMATED FROM RADAR. |
| Jul 2, 8:05 PM EDT | TSTM WND GST 60 | Thornbury Twp, PA | TRAINED SPOTTER ESTIMATED A 60MPH WIND GUST. 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, 11.2 hours before the alert went out and 212 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
- 1575 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
663
WUUS51 KPHI 022312
SVRPHI
PAC011-029-045-091-101-030000-
/O.NEW.KPHI.SV.W.0191.190702T2312Z-190703T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
712 PM EDT Tue Jul 2 2019
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southeastern Berks County in eastern Pennsylvania...
Southern Montgomery County in southeastern Pennsylvania...
Northeastern Chester County in southeastern Pennsylvania...
Philadelphia County in southeastern Pennsylvania...
Delaware County in southeastern Pennsylvania...
* Until 800 PM EDT.
* At 711 PM EDT, a severe thunderstorm was located over Pughtown, or
14 miles north of West Chester, moving southeast at 40 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Philadelphia, Camden, West Chester, Norristown, Chester, Pottstown,
Phoenixville, West Norriton, East Norriton, Yeadon, Westtown,
Conshohocken, Palmyra, Folcroft, Swarthmore, Paulsboro,
Collegeville, Royersford, Jenkintown and Narberth.
People attending PES Explosion Response and Recovery should seek safe
shelter immediately!
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4033 7565 4004 7499 3995 7514 3990 7513
3988 7515 3988 7519 3985 7525 3985 7533
3980 7541 4017 7588
TIME...MOT...LOC 2311Z 310DEG 33KT 4017 7566
HAIL...<.75IN
WIND...70MPH
$$
Meola1 follow-up statement
764
WWUS51 KPHI 022351
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
751 PM EDT Tue Jul 2 2019
PAC011-029-045-091-101-030001-
/O.EXP.KPHI.SV.W.0191.000000T0000Z-190703T0000Z/
Berks PA-Montgomery PA-Chester PA-Philadelphia PA-Delaware PA-
751 PM EDT Tue Jul 2 2019
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BERKS...SOUTHERN
MONTGOMERY...NORTHEASTERN CHESTER...PHILADELPHIA AND DELAWARE
COUNTIES WILL EXPIRE AT 800 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However heavy rain
is still possible with this thunderstorm.
LAT...LON 4033 7565 4004 7499 3995 7514 3990 7513
3988 7515 3988 7519 3985 7525 3985 7533
3980 7541 4017 7588
TIME...MOT...LOC 2351Z 310DEG 33KT 3994 7531
$$
MeolaThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 5:17 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 43 min |
| Jul 2, 6:28 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 47 min |
| Jul 2, 7:27 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 48 min |
| Jul 2, 7:50 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 40 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 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.