Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 153, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 22, 2020, 3:39 PM EDT for Berks County, Pennsylvania. It was in force for 51 min. 2 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 22, 2020, 3:39 PM EDT (19:39 UTC)
- Expired
- Jul 22, 2020, 4:30 PM EDT
- In force
- 51 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
County Berks County, PA
The radar
The State College radar (KCCX), 161 km from the middle of the area, began a volume at 19:41 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 22, 4:01 PM EDT | TSTM WND DMG | 2 Sw Marion Twp, PA | SEVERAL REPORTS OF TREES AND WIRES DOWN IN STOUCHSBURG. TIME ESTIMATED FROM RADAR. |
| Jul 22, 4:03 PM EDT | TSTM WND DMG | 1 Nnw Marion Twp, PA | SEVERAL REPORTS OF TREES AND WIRES DOWN IN THE HOST AND NORTH HEIDELBERG AREAS. TIME ESTIMATED FROM 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 |
|---|---|---|---|
| Jul 22, 2:57 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.7 hours before the alert went out and 196 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
- 248 J/kg
- Mixed-layer CIN
- -214 J/kg
- Mixed-layer LCL
- 1163 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
504
WUUS51 KPHI 221939
SVRPHI
PAC011-222030-
/O.NEW.KPHI.SV.W.0153.200722T1939Z-200722T2030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
339 PM EDT Wed Jul 22 2020
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northwestern Berks County in eastern Pennsylvania...
* Until 430 PM EDT.
* At 338 PM EDT, a severe thunderstorm was located over
Fredericksburg, or near Lebanon, moving east at 25 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Wyomissing, Sinking Spring, Womelsdorf, Wernersville, Robesonia,
Bernville, Strausstown, Fairview Hgts, Spring Ridge, West Lawn,
Whitfield, West Wyomissing and Wyomissing Hills.
This includes Interstate 78 in Pennsylvania between mile markers 10
and 29.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Protecting yourself from immediate threats to life and safety shall
take priority. Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.
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 4052 7634 4052 7625 4058 7606 4058 7603
4030 7598 4031 7615 4036 7621 4037 7623
4049 7643
TIME...MOT...LOC 1938Z 261DEG 23KT 4043 7644
HAIL...0.88IN
WIND...60MPH
$$
MPS3 follow-up statements
292
WWUS51 KPHI 222003
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
403 PM EDT Wed Jul 22 2020
PAC011-222030-
/O.CON.KPHI.SV.W.0153.000000T0000Z-200722T2030Z/
Berks PA-
403 PM EDT Wed Jul 22 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR NORTHWESTERN BERKS COUNTY...
At 403 PM EDT, a severe thunderstorm was located over Strausstown, or
8 miles northeast of Myerstown, moving east at 30 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Bernville, Strausstown and Fairview Hgts.
This includes Interstate 78 in Pennsylvania between mile markers 13
and 29.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Protecting yourself from immediate threats to life and safety shall
take priority. Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4040 7629 4052 7633 4052 7625 4058 7606
4058 7603 4040 7600 4037 7622 4037 7623
TIME...MOT...LOC 2003Z 253DEG 25KT 4048 7622
HAIL...0.88IN
WIND...60MPH
$$
MPS552
WWUS51 KPHI 222018
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
418 PM EDT Wed Jul 22 2020
PAC011-222030-
/O.CON.KPHI.SV.W.0153.000000T0000Z-200722T2030Z/
Berks PA-
418 PM EDT Wed Jul 22 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR CENTRAL BERKS COUNTY...
At 417 PM EDT, a severe thunderstorm was located near Bernville, or
11 miles southeast of Schuylkill Haven, moving east at 30 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Bernville and Fairview Hgts.
This includes Interstate 78 in Pennsylvania between mile markers 22
and 29.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Protecting yourself from immediate threats to life and safety shall
take priority. Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.
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 4038 7614 4055 7615 4057 7609 4058 7604
4058 7603 4040 7600
TIME...MOT...LOC 2017Z 267DEG 27KT 4048 7606
HAIL...0.88IN
WIND...60MPH
$$
MPS581
WWUS51 KPHI 222020
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
420 PM EDT Wed Jul 22 2020
PAC011-222030-
/O.EXP.KPHI.SV.W.0153.000000T0000Z-200722T2030Z/
Berks PA-
420 PM EDT Wed Jul 22 2020
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BERKS COUNTY WILL
EXPIRE AT 430 PM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
eastern Pennsylvania.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 4038 7614 4055 7615 4057 7609 4058 7604
4058 7603 4040 7600
TIME...MOT...LOC 2020Z 261DEG 23KT 4048 7604
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 8:45 PM EDT | Special Weather Statement | PHI | Berks | 30 min |
| Jul 21, 9:20 PM EDT | Special Weather Statement | PHI | Montgomery | 25 min |
| Jul 22, 1:36 PM EDT | Special Weather Statement | PHI | Carbon | 24 min |
| Jul 22, 1:58 PM EDT | Special Weather Statement | PHI | Monroe | 32 min |
| Jul 22, 2:10 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 50 min |
| Jul 22, 3:29 PM EDT | Special Weather Statement | PHI | Lebanon | 46 min |
| Jul 22, 4:01 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 22 min |
| Jul 22, 4:10 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Northampton | 65 min |
| Jul 22, 4:25 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery | 50 min |
| Jul 22, 4:38 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 52 min |
| Jul 22, 4:49 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Carbon, Lehigh, Monroe, Northampton | 56 min |
| Jul 22, 5:09 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 1 more | 66 min |
| Jul 22, 5:16 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Monroe, Northampton | 59 min |
| Jul 22, 5:23 PM EDT | Areal Flood Advisory | PHI | Northampton | 3 hr |
| Jul 22, 5:33 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 57 min |
| Jul 22, 5:40 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 65 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2020Every severe thunderstorm warning in 2020
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.