Alert archive / Pennsylvania / Special Weather Statements in 2019
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Aug 2, 2019, 5:57 PM EDT for Berks County, Pennsylvania. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 2, 2019, 5:57 PM EDT (21:57 UTC)
- Expired
- Aug 2, 2019, 6:30 PM EDT
- In force
- 33 min
- Issued by
- NWS Philadelphia/Mount Holly
County Berks County, PA
The radar
The Philadelphia radar (KDIX), 148 km from the middle of the area, began a volume at 21:58 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.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 10.0 hours before the alert went out and 224 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
- 457 J/kg
- Mixed-layer CIN
- -73 J/kg
- Mixed-layer LCL
- 870 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -54 m²/s²
- 0-3 km storm-relative helicity
- -36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
129
WWUS81 KPHI 022157
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
557 PM EDT Fri Aug 2 2019
PAZ060-022230-
Berks-
557 PM EDT Fri Aug 2 2019
...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL BERKS COUNTY...
At 557 PM EDT, a strong thunderstorm was located over Lenhartsville,
or 13 miles south of Tamaqua, moving north at 10 mph.
Wind gusts up to 40 mph and pea size hail are possible with this
storm.
Locations impacted include...
Hamburg and Lenhartsville.
Torrential rainfall is also occurring, and may cause localized
flooding. Do not drive your vehicle through flooded roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
LAT...LON 4063 7600 4065 7598 4068 7590 4068 7589
4064 7583 4061 7578 4051 7582 4052 7597
4060 7601
TIME...MOT...LOC 2157Z 188DEG 8KT 4061 7590
$$
GorseThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 5:49 PM EDT | Special Weather Statement | PHI | Carbon | 26 min |
| Aug 2, 7:01 PM EDT | Special Weather Statement | PHI | Carbon | 29 min |
| Aug 2, 7:03 PM EDT | Special Weather Statement | PHI | Berks | 27 min |
| Aug 2, 7:39 PM EDT | Special Weather Statement | PHI | Berks | 36 min |
| Aug 2, 7:46 PM EDT | Areal Flood Advisory | PHI | Berks | 108 min |
| Aug 2, 5:11 PM EDT | Special Weather Statement | PHI | Kent | 34 min |
Nearby
Special Weather Statements in Pennsylvania, 2019Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.