Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 142, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 28, 2019, 5:06 PM EDT for Berks County, Montgomery County, Pennsylvania. It was in force for 39 min. 3 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 28, 2019, 5:06 PM EDT (21:06 UTC)
- Expired
- Jun 28, 2019, 5:45 PM EDT
- In force
- 39 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Berks County, PA, Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 114 km from the middle of the area, began a volume at 21:07 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 28, 5:42 PM EDT | HAIL 1 | 4 Nnw Amity Gardens, PA | AT INTERSECTION OF COVERED BRIDGE ROAD AND MEMORIAL HIGHWAY IN OLEY TWP. |
| Jun 28, 5:49 PM EDT | TSTM WND DMG | 2 Ene Amity Gardens, PA | DOWNED TREE AT INTERSECTION OF DOUGLASS DRIVE AND PINE FORGE ROAD. TIME ESTIMATED FROM RADAR. |
| Jun 28, 5:52 PM EDT | TSTM WND DMG | 4 Sse Oley, PA | CORRECTS TIME OF PREVIOUS TSTM WND DMG REPORT FROM 4 SSE OLEY. TREE DOWN AT THE INTERSECTION OF BLACKSMITH RD AND HUNTER RD. 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, 9.1 hours before the alert went out and 213 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
- 92 J/kg
- Mixed-layer CIN
- -173 J/kg
- Mixed-layer LCL
- 1515 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
055
WUUS51 KPHI 282106
SVRPHI
PAC011-091-282145-
/O.NEW.KPHI.SV.W.0142.190628T2106Z-190628T2145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
506 PM EDT Fri Jun 28 2019
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southeastern Berks County in eastern Pennsylvania...
Northwestern Montgomery County in southeastern Pennsylvania...
* Until 545 PM EDT.
* At 506 PM EDT, severe thunderstorms were located along a line
extending from Topton to near Birdsboro, moving east at 15 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to
roofs, siding, trees, and power lines is possible.
* Locations impacted include...
Pottstown, Birdsboro, East Greenville, Topton, Bally,
Bechtelsville, Lyons, Geryville, Gilbertsville, Stowe, Boyertown,
Pennsburg, Red Hill, St. Lawrence, Pottsgrove, Lorane, Reiffton,
Amity Gardens, Sanatoga and Halfway House.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with these storms. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4056 7570 4040 7545 4023 7559 4024 7561
4022 7561 4024 7565 4024 7568 4022 7574
4029 7589
TIME...MOT...LOC 2106Z 259DEG 12KT 4048 7568 4032 7580
HAIL...1.00IN
WIND...60MPH
$$
CMS1 follow-up statement
481
WWUS51 KPHI 282130
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
530 PM EDT Fri Jun 28 2019
PAC011-091-282145-
/O.CON.KPHI.SV.W.0142.000000T0000Z-190628T2145Z/
Berks PA-Montgomery PA-
530 PM EDT Fri Jun 28 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR SOUTHEASTERN BERKS AND NORTHWESTERN MONTGOMERY COUNTIES...
At 530 PM EDT, severe thunderstorms were located along a line
extending from near Ancient Oaks to near Bechtelsville, moving east
at 15 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Pottstown, Birdsboro, East Greenville, Topton, Bally, Bechtelsville,
Geryville, Gilbertsville, Stowe, Boyertown, Pennsburg, Red Hill,
Pottsgrove, Amity Gardens, Sanatoga, Halfway House and South
Pottstown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4054 7568 4040 7545 4023 7559 4024 7561
4024 7568 4025 7573 4026 7582
TIME...MOT...LOC 2130Z 259DEG 12KT 4049 7559 4033 7571
HAIL...0.75IN
WIND...60MPH
$$
CMSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 2:28 PM EDT | Special Weather Statement | PHI | Carbon | 32 min |
| Jun 28, 2:59 PM EDT | Special Weather Statement | PHI | Carbon | 31 min |
| Jun 28, 3:14 PM EDT | Special Weather Statement | PHI | Carbon | 31 min |
| Jun 28, 3:27 PM EDT | Special Weather Statement | PHI | Carbon | 33 min |
| Jun 28, 3:55 PM EDT | Areal Flood Advisory | PHI | Carbon | 2 hr |
| Jun 28, 4:02 PM EDT | Special Weather Statement | PHI | Carbon | 28 min |
| Jun 28, 4:26 PM EDT | Special Weather Statement | PHI | Lehigh, Northampton | 34 min |
| Jun 28, 4:31 PM EDT | Special Weather Statement | PHI | Chester | 29 min |
| Jun 28, 4:55 PM EDT | Special Weather Statement | PHI | Lehigh | 35 min |
| Jun 28, 5:01 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh, Northampton | 44 min |
| Jun 28, 5:23 PM EDT | Areal Flood Advisory | PHI | Lehigh, Northampton | 76 min |
| Jun 28, 5:27 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 48 min |
| Jun 28, 5:35 PM EDT | Flash Flood Warning | PHI | Lehigh, Northampton | 2 hr |
| Jun 28, 5:42 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 48 min |
| Jun 28, 5:45 PM EDT | Flash Flood Warning | PHI | Berks | 2 hr |
| Jun 28, 6:13 PM EDT | Special Weather Statement | PHI | Bucks | 32 min |
| Jun 28, 6:32 PM EDT | Special Weather Statement | PHI | Berks | 28 min |
| Jun 28, 6:48 PM EDT | Special Weather Statement | PHI | Montgomery | 27 min |
| Jun 28, 6:50 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Montgomery, Philadelphia | 40 min |
| Jun 28, 7:17 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 43 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.