Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 194, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 2, 2019, 7:50 PM EDT for 4 counties in Pennsylvania. It was in force for 40 min. 10 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, 7:50 PM EDT (23:50 UTC)
- Expired
- Jul 2, 2019, 8:30 PM EDT
- In force
- 40 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties 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 23:54 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, 8:01 PM EDT | TSTM WND DMG | 2 Nnw East Bradford Twp, PA | TREES AND WIRES DOWN ON COPELAND SCHOOL RD. |
| 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. |
| Jul 2, 8:15 PM EDT | TSTM WND DMG | Garnet Valley, PA | POWER OUTAGES REPORTED DUE TO THUNDERSTORM WINDS. |
| Jul 2, 8:20 PM EDT | TSTM WND DMG | 1 Wnw Westtown, PA | TREES AND WIRES DOWN ON WESTBOURNE RD AT S CONCORD RD. TIME ESTIMATED FROM RADAR. |
| Jul 2, 8:20 PM EDT | TSTM WND GST 60 | Brookhaven, PA | TRAINED SPOTTER REPORTS A MEASURED 60MPH WIND GUST. |
| Jul 2, 8:20 PM EDT | TSTM WND GST 60 | Media, PA | SPOTTER ESTIMATED 60MPH WIND GUSTS. |
| Jul 2, 8:27 PM EDT | TSTM WND GST 54 | Philadelphia Internatio, PA | KPHL ASOS. |
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, 11.8 hours before the alert went out and 209 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.
661
WUUS51 KPHI 022350
SVRPHI
PAC029-045-091-101-030030-
/O.NEW.KPHI.SV.W.0194.190702T2350Z-190703T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
750 PM EDT Tue Jul 2 2019
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southwestern Montgomery County in southeastern Pennsylvania...
Northeastern Chester County in southeastern Pennsylvania...
Southwestern Philadelphia County in southeastern Pennsylvania...
Delaware County in southeastern Pennsylvania...
* Until 830 PM EDT.
* At 750 PM EDT, a severe thunderstorm was located over Drexel Hill,
or 10 miles southwest of Philadelphia, moving southeast 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, West Chester, Chester, Phoenixville, West
Norriton, Yeadon, Westtown, Conshohocken, Folcroft, Swarthmore,
Paulsboro, Royersford, Narberth, East Lansdowne, Darby Township,
Cheyney, Morris Park, Bryn Mawr and Trout Lake.
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 4012 7582 4020 7553 3998 7509 3995 7514
3990 7513 3988 7515 3988 7519 3985 7525
3985 7533 3980 7541
TIME...MOT...LOC 2350Z 310DEG 33KT 3994 7530
HAIL...<.75IN
WIND...60MPH
$$
Meola2 follow-up statements
788
WWUS51 KPHI 022352
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
752 PM EDT Tue Jul 2 2019
PAC029-045-091-101-030030-
/O.CON.KPHI.SV.W.0194.000000T0000Z-190703T0030Z/
Montgomery PA-Chester PA-Philadelphia PA-Delaware PA-
752 PM EDT Tue Jul 2 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR SOUTHWESTERN MONTGOMERY...NORTHEASTERN CHESTER...SOUTHWESTERN
PHILADELPHIA AND DELAWARE COUNTIES...
At 752 PM EDT, a severe thunderstorm was located over Paoli, or 8
miles northeast of West Chester, moving southeast at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Philadelphia, Camden, West Chester, Chester, Phoenixville, West
Norriton, Yeadon, Westtown, Conshohocken, Folcroft, Swarthmore,
Paulsboro, Royersford, Narberth, East Lansdowne, Darby Township,
Cheyney, Morris Park, Bryn Mawr and Trout Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4012 7582 4020 7553 3998 7509 3995 7514
3990 7513 3988 7515 3988 7519 3985 7525
3985 7533 3980 7541
TIME...MOT...LOC 2352Z 295DEG 26KT 4001 7545
HAIL...<.75IN
WIND...60MPH
$$
Meola223
WWUS51 KPHI 030026
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
826 PM EDT Tue Jul 2 2019
PAC029-045-091-101-030036-
/O.EXP.KPHI.SV.W.0194.000000T0000Z-190703T0030Z/
Montgomery PA-Chester PA-Philadelphia PA-Delaware PA-
826 PM EDT Tue Jul 2 2019
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MONTGOMERY...
NORTHEASTERN CHESTER...SOUTHWESTERN PHILADELPHIA AND DELAWARE
COUNTIES WILL EXPIRE AT 830 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire. However gusty winds and heavy rain are still
possible with this thunderstorm.
Remember, a Severe Thunderstorm Warning still remains in effect for
portions of the area.
LAT...LON 4012 7582 4020 7553 3998 7509 3995 7514
3990 7513 3988 7515 3988 7519 3985 7525
3985 7533 3980 7541
TIME...MOT...LOC 0026Z 310DEG 33KT 3983 7517
$$
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, 7:12 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 48 min |
| Jul 2, 7:27 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 48 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.