Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 193, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 2, 2020, 6:30 AM EDT for Berks County, Lehigh County, Pennsylvania. It was in force for 45 min. 6 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
- Aug 2, 2020, 6:30 AM EDT (10:30 UTC)
- Expired
- Aug 2, 2020, 7:15 AM EDT
- In force
- 45 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Berks County, PA, Lehigh County, PA
The radar
The Philadelphia radar (KDIX), 132 km from the middle of the area, began a volume at 10:34 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 |
|---|---|---|---|
| Aug 2, 6:31 AM EDT | TSTM WND DMG | 1 Nnw Mount Penn, PA | TREE LIMBS AND WIRES DOWN NEAR ANGORA ROAD IN MOUNT PENN. TIME ESTIMATED FROM RADAR. |
| Aug 2, 6:41 AM EDT | TSTM WND DMG | 2 Sw Lyons, PA | DOWNED TREES AND WIRES NEAR FLEETWOOD ROAD BETWEEN FLEETWOOD AND LYONS. TIME ESTIMATED FROM RADAR. |
| Aug 2, 6:45 AM EDT | TSTM WND DMG | 2 S Kutztown, PA | DOWNED TREES AND WIRES NEAR BALDY ROAD. TIME ESTIMATED FROM RADAR. |
| Aug 2, 6:48 AM EDT | TSTM WND DMG | 1 Ene Lyons, PA | DOWNED TREES AND WIRES NEAR SMOKETOWN ROAD IN LYONS. TIME ESTIMATED FROM RADAR. |
| Aug 2, 6:50 AM EDT | TSTM WND DMG | 2 Nw Topton, PA | DOWNED TREES AND WIRES NEAR HINTERLEITER ROAD. TIME ESTIMATED FROM RADAR. |
| Aug 2, 7:08 AM EDT | TSTM WND DMG | 1 S Ancient Oaks, PA | DOWNED TREES AND WIRES NEAR ASTER ROAD. 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 00:00Z, 10.5 hours before the alert went out and 217 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
- 878 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 1054 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.7
The text
As transmitted.
905
WUUS51 KPHI 021030
SVRPHI
PAC011-077-021115-
/O.NEW.KPHI.SV.W.0193.200802T1030Z-200802T1115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
630 AM EDT Sun Aug 2 2020
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern Berks County in eastern Pennsylvania...
Southern Lehigh County in eastern Pennsylvania...
* Until 715 AM EDT.
* At 629 AM EDT, a severe thunderstorm was located over Fleetwood, or
7 miles northeast of Reading, moving northeast at 20 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Reading, Emmaus, Kutztown, Fleetwood, Laureldale, Topton, Leesport,
Shoemakersville, Lyons, Fairview Hgts, Zionsville, Ancient Oaks,
Claussville, Mount Penn, Macungie, Alburtis, St. Lawrence, Reiffton
and Lorane.
This includes the following highways...
Northeast Extension between mile markers 48 and 57.
Interstate 78 in Pennsylvania between mile markers 41 and 56.
Interstate 176 in Pennsylvania near mile marker 11.
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 4046 7604 4066 7565 4049 7543 4028 7589
TIME...MOT...LOC 1029Z 240DEG 19KT 4041 7582
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
JEO1 follow-up statement
150
WWUS51 KPHI 021050
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
650 AM EDT Sun Aug 2 2020
PAC011-077-021115-
/O.CON.KPHI.SV.W.0193.000000T0000Z-200802T1115Z/
Berks PA-Lehigh PA-
650 AM EDT Sun Aug 2 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 AM EDT
FOR NORTHEASTERN BERKS AND SOUTHEASTERN LEHIGH COUNTIES...
At 650 AM EDT, a severe thunderstorm was located over Topton, or 14
miles southwest of Allentown, moving northeast at 20 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Emmaus, Kutztown, Fleetwood, Topton, Lyons, Ancient Oaks,
Claussville, Zionsville, Macungie and Alburtis.
This includes the following highways...
Northeast Extension between mile markers 48 and 57.
Interstate 78 in Pennsylvania between mile markers 43 and 56.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Protecting yourself from immediate threats to life and safety shall
take priority. Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4048 7593 4066 7565 4049 7543 4034 7584
TIME...MOT...LOC 1050Z 240DEG 19KT 4047 7569
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
JEOThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 3:32 AM EDT | Areal Flood Advisory | PHI | Berks | 4 hr |
| Aug 2, 4:42 AM EDT | Flash Flood Warning | PHI | Berks | 4 hr |
| Aug 2, 6:37 AM EDT | Tornado Warning | PHI | Berks, Lehigh | 23 min |
| Aug 2, 6:56 AM EDT | Tornado Warning | PHI | Berks, Lehigh | 34 min |
| Aug 2, 7:13 AM EDT | Areal Flood Advisory | PHI | Berks, Lehigh, Northampton | 3 hr |
| Aug 2, 7:29 AM EDT | Special Weather Statement | PHI | Lehigh | 31 min |
| Aug 2, 7:34 AM EDT | Areal Flood Advisory | PHI | Bucks, Lehigh, Northampton | 3 hr |
| Aug 2, 7:39 AM EDT | Tornado Warning | PHI | Bucks, Lehigh, Northampton | 36 min |
| Aug 2, 7:49 AM EDT | Areal Flood Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 84 min |
| Aug 2, 7:54 AM EDT | Special Weather Statement | PHI | Lehigh | 36 min |
| Aug 2, 8:24 AM EDT | Special Weather Statement | PHI | Lehigh | 36 min |
| Aug 2, 8:28 AM EDT | Areal Flood Warning | PHI | Berks | 3 hr |
| Aug 2, 8:46 AM EDT | Areal Flood Advisory | PHI | Northampton | 3 hr |
| Aug 2, 3:33 PM EDT | Flash Flood Watch | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 48 hr |
| Aug 2, 5:04 PM EDT | Tropical Storm Watch | PHI | Bucks, Delaware, Montgomery, Philadelphia | 18 hr |
| Aug 2, 5:14 PM EDT | Special Weather Statement | PHI | Carbon, Monroe | 31 min |
| Aug 2, 5:51 PM EDT | Special Weather Statement | PHI | Lehigh, Northampton | 39 min |
| Aug 2, 6:29 PM EDT | Special Weather Statement | PHI | Northampton | 31 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.