Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 110, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 26, 2023, 8:40 PM EDT for Chester County, Pennsylvania. It was in force for 31 min. 8 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
- Jun 26, 2023, 8:40 PM EDT (00:40 UTC)
- Expired
- Jun 26, 2023, 9:11 PM EDT
- In force
- 31 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Chester County, PA
The radar
The Philadelphia radar (KDIX), 129 km from the middle of the area, began a volume at 00:40 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 |
|---|---|---|---|
| Jun 26, 8:50 PM EDT | TSTM WND DMG | 1 W Gum Tree, PA | Trees and Wires down on E Friendship Church Road, PA. Time estimated via radar. |
| Jun 26, 8:50 PM EDT | TSTM WND DMG | 1 W Gum Tree, PA | Trees and Wires down on E Friendship Church Road, PA. Time estimated via radar. |
| Jun 26, 8:51 PM EDT | TSTM WND DMG | 1 Ssw East Fallowfield, PA | Trees down blocking road on Doe Run Road. Time estimated via radar. |
| Jun 26, 8:51 PM EDT | TSTM WND DMG | 1 Ssw East Fallowfield, PA | Trees down blocking road on Doe Run Road. Time estimated via radar. |
| Jun 26, 9:02 PM EDT | TSTM WND DMG | West Bradford Twp, PA | Tree Down Blocking Roadway near Kerwood Lane. Time estimated via radar. |
| Jun 26, 9:02 PM EDT | TSTM WND DMG | West Bradford Twp, PA | Tree Down Blocking Roadway near Kerwood Lane. Time estimated via radar. |
| Jun 26, 9:07 PM EDT | TSTM WND DMG | 2 Sw East Brandywine Tw, PA | Tree down blocking roadway on Reeceville Road and Hurley Road. Time estimated via radar. |
| Jun 26, 9:07 PM EDT | TSTM WND DMG | 2 Sw East Brandywine Tw, PA | Tree down blocking roadway on Reeceville Road and Hurley Road. Time estimated via radar. |
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 |
|---|---|---|---|
| Jun 26, 1:11 PM EDT | Severe Thunderstorm Watch | SPC | 11 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 0.7 hours before the alert went out and 168 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
- 1362 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 1456 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
130
WUUS51 KPHI 270040
SVRPHI
PAC029-270130-
/O.NEW.KPHI.SV.W.0110.230627T0040Z-230627T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
840 PM EDT Mon Jun 26 2023
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Central Chester County in southeastern Pennsylvania...
* Until 930 PM EDT.
* At 839 PM EDT, a severe thunderstorm was located over Cochranville,
or 14 miles northwest of Newark, moving northeast at 30 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...
West Chester, Coatesville, Downingtown, Oxford, Parkesburg, West
Grove, Honey Brook, Homeville, Cochranville, Glenmoore, Lionville,
Marshallton, Lionville-Marchwood, West Goshen, Atglen, South
Coatesville, Avondale, Modena, Exton and Thorndale.
This includes Pennsylvania Turnpike between mile markers 307 and 312.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3987 7601 3987 7599 3992 7600 3994 7598
3995 7599 4014 7588 4015 7586 4001 7552
3974 7587 3982 7603
TIME...MOT...LOC 0039Z 216DEG 24KT 3985 7591
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MPS2 follow-up statements
294
WWUS51 KPHI 270057
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
857 PM EDT Mon Jun 26 2023
PAC029-270130-
/O.CON.KPHI.SV.W.0110.000000T0000Z-230627T0130Z/
Chester PA-
857 PM EDT Mon Jun 26 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR CENTRAL CHESTER COUNTY...
At 857 PM EDT, a severe thunderstorm was located over Coatesville, or
11 miles west of West Chester, moving northeast at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
West Chester, Coatesville, Downingtown, Parkesburg, Glenmoore,
Lionville, Marshallton, Lionville-Marchwood, South Coatesville,
Modena, Exton, Thorndale and Toughkenamon.
This includes Pennsylvania Turnpike between mile markers 307 and 312.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3983 7577 3994 7596 4013 7582 4002 7554
TIME...MOT...LOC 0057Z 216DEG 24KT 3995 7582
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MPS876
WWUS51 KPHI 270111
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
911 PM EDT Mon Jun 26 2023
PAC029-270121-
/O.CAN.KPHI.SV.W.0110.000000T0000Z-230627T0130Z/
Chester PA-
911 PM EDT Mon Jun 26 2023
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CHESTER COUNTY IS
CANCELLED...
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 has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
southeastern Pennsylvania.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 3983 7577 3994 7596 4013 7582 4002 7554
TIME...MOT...LOC 0110Z 216DEG 24KT 4003 7575
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 8:27 PM EDT | Special Weather Statement | PHI | Chester | 33 min |
| Jun 26, 8:33 PM EDT | Special Weather Statement | PHI | Philadelphia | 27 min |
| Jun 26, 8:36 PM EDT | Special Weather Statement | PHI | Bucks | 24 min |
| Jun 26, 8:42 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 48 min |
| Jun 26, 9:18 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 42 min |
| Jun 26, 9:30 PM EDT | Flash Flood Warning | PHI | Monroe, Northampton | 3 hr |
| Jun 26, 9:47 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Montgomery | 43 min |
| Jun 26, 9:51 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Philadelphia | 54 min |
| Jun 26, 9:58 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 47 min |
| Jun 26, 10:33 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 42 min |
| Jun 26, 10:54 PM EDT | Areal Flood Advisory | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 3 hr |
| Jun 26, 11:07 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Philadelphia | 53 min |
| Jun 26, 11:27 PM EDT | Areal Flood Advisory | PHI | Bucks, Montgomery, Philadelphia | 3 hr |
| Jun 26, 11:35 PM EDT | Flash Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 6 hr |
| Jun 27, 12:00 AM EDT | Areal Flood Warning | PHI | Bucks, Lehigh, Monroe, Northampton | 7 hr |
| Jun 27, 12:51 AM EDT | Flash Flood Warning | PHI | Chester, Montgomery | 4 hr |
| Jun 27, 1:23 AM EDT | Special Weather Statement | PHI | Montgomery | 37 min |
| Jun 27, 2:23 AM EDT | River Flood Warning | PHI | Chester | 6 hr |
| Jun 27, 2:29 AM EDT | Special Weather Statement | PHI | Delaware | 31 min |
| Jun 27, 3:01 AM EDT | Special Weather Statement | PHI | Delaware, Montgomery, Philadelphia | 29 min |
| Jun 27, 3:02 AM EDT | Flood Watch | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 46 min |
| Jun 27, 3:26 AM EDT | River Flood Warning | PHI | Delaware | 4 hr |
| Jun 27, 3:48 AM EDT | Flood Watch | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 17 hr |
| Jun 27, 3:54 AM EDT | River Flood Warning | PHI | Chester, Delaware | 5 hr |
| Jun 27, 6:14 AM EDT | Areal Flood Warning | PHI | Montgomery, Philadelphia | 3 hr |
| Jun 27, 6:16 AM EDT | Areal Flood Warning | PHI | Chester, Delaware | 3 hr |
| Jun 27, 10:08 AM EDT | River Flood Warning | PHI | Chester, Delaware | 109 min |
| Jun 27, 12:45 PM EDT | Special Weather Statement | PHI | Berks | 30 min |
| Jun 27, 2:13 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 47 min |
| Jun 27, 2:18 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 22 min |
| Jun 27, 2:21 PM EDT | Special Weather Statement | PHI | Berks | 24 min |
| Jun 27, 2:42 PM EDT | Areal Flood Advisory | PHI | Berks | 3 hr |
| Jun 27, 2:57 PM EDT | Areal Flood Advisory | PHI | Chester | 3 hr |
| Jun 27, 3:07 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 38 min |
| Jun 27, 3:25 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 19 min |
| Jun 27, 3:33 PM EDT | Special Weather Statement | PHI | Delaware | 27 min |
| Jun 27, 3:57 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 48 min |
| Jun 27, 4:06 PM EDT | Special Weather Statement | PHI | Northampton | 24 min |
| Jun 27, 4:24 PM EDT | Areal Flood Advisory | PHI | Northampton | 3 hr |
| Jun 27, 4:30 PM EDT | Severe Thunderstorm Warning | PHI | Montgomery, Philadelphia | 32 min |
| Jun 27, 4:33 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 42 min |
| Jun 27, 4:39 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 51 min |
| Jun 27, 4:58 PM EDT | Areal Flood Advisory | PHI | Bucks, Montgomery, Philadelphia | 3 hr |
| Jun 27, 5:01 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 44 min |
| Jun 27, 5:22 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Philadelphia | 38 min |
| Jun 27, 5:43 PM EDT | Special Weather Statement | PHI | Monroe, Northampton | 32 min |
| Jun 27, 5:44 PM EDT | Flash Flood Warning | PHI | Bucks, Montgomery, Philadelphia | 5 hr |
| Jun 27, 5:52 PM EDT | Areal Flood Advisory | PHI | Northampton | 3 hr |
| Jun 27, 5:57 PM EDT | Areal Flood Advisory | PHI | Bucks, Delaware, Philadelphia | 3 hr |
| Jun 27, 6:15 PM EDT | Special Weather Statement | PHI | Northampton | 45 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2023Every severe thunderstorm warning in 2023
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.