Alert archive / Pennsylvania / Special Weather Statements in 2018
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Aug 7, 2018, 5:32 PM EDT for Berks County, Pennsylvania. It was in force for 58 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 7, 2018, 5:32 PM EDT (21:32 UTC)
- Expired
- Aug 7, 2018, 6:30 PM EDT
- In force
- 58 min
- Issued by
- NWS Philadelphia/Mount Holly
County Berks County, PA
The radar
The Philadelphia radar (KDIX), 149 km from the middle of the area, began a volume at 21:35 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, 9.5 hours before the alert went out and 192 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
- 1323 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 955 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
837
WWUS81 KPHI 072132
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
532 PM EDT TUE AUG 7 2018
PAZ060-072230-
Berks-
532 PM EDT TUE AUG 7 2018
...A STRONG THUNDERSTORM WILL AFFECT WESTERN BERKS COUNTY...
At 530 PM EDT, a strong thunderstorm was located over Lebanon,
moving east at 25 mph.
Winds up to 40 mph and half inch hail are possible with this storm.
Locations that may be impacted include...
Reading, Wyomissing, Sinking Spring, Laureldale, Womelsdorf,
Wernersville, Newmanstown, Leesport, Bernville, New Morgan, Spring
Ridge, Fairview Hgts, Shillington, West Reading, Mount Penn,
Mohnton, Kenhorst, St. Lawrence, West Lawn and Lorane.
Torrential rainfall is also occurring with this storm, 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 4044 7581 4015 7585 4014 7587 4031 7614
4036 7621 4037 7623 4047 7640 4050 7643
TIME...MOT...LOC 2131Z 277DEG 20KT 4033 7638
$$
IovinoThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 12:19 PM EDT | Heat Advisory | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 6 more | 6 hr |
| Aug 7, 2:24 PM EDT | Areal Flood Advisory | PHI | Sussex | 78 min |
| Aug 7, 3:31 PM EDT | Heat Advisory | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 4 more | 26 hr |
| Aug 7, 4:27 PM EDT | Special Weather Statement | PHI | Sussex | 48 min |
| Aug 7, 5:07 PM EDT | Special Weather Statement | PHI | Sussex | 53 min |
| Aug 7, 5:46 PM EDT | Special Weather Statement | PHI | Morris, Sussex | 59 min |
| Aug 7, 4:07 PM EDT | Special Weather Statement | PHI | Monroe | 38 min |
| Aug 7, 4:44 PM EDT | Special Weather Statement | PHI | Monroe | 61 min |
| Aug 7, 4:48 PM EDT | Special Weather Statement | PHI | Lehigh | 57 min |
| Aug 7, 5:41 PM EDT | Special Weather Statement | PHI | Lehigh | 49 min |
| Aug 7, 6:21 PM EDT | Special Weather Statement | PHI | Lehigh | 54 min |
| Aug 7, 6:25 PM EDT | Special Weather Statement | PHI | Berks | 65 min |
| Aug 7, 2:13 PM EDT | Special Weather Statement | PHI | Sussex | 47 min |
| Aug 7, 4:50 PM EDT | Special Weather Statement | PHI | Kent | 55 min |
Nearby
Special Weather Statements in Pennsylvania, 2018Every special weather statement in 2018
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.