Alert archive / Pennsylvania / Special Weather Statements in 2017
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Aug 4, 2017, 1:25 PM EDT for Berks County, Pennsylvania. It was in force for 65 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 4, 2017, 1:25 PM EDT (17:25 UTC)
- Expired
- Aug 4, 2017, 2:30 PM EDT
- In force
- 65 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 17:28 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, 5.4 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
- 166 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 1412 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
261
WWUS81 KPHI 041725
SPSPHI
Special Weather Statement
National Weather Service MOUNT HOLLY NJ
125 PM EDT FRI AUG 4 2017
PAZ060-061-041830-
Lehigh-Berks-
125 PM EDT FRI AUG 4 2017
...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL BERKS AND
NORTHWESTERN LEHIGH COUNTIES...
At 125 PM EDT, a strong thunderstorm was located over Hamburg, or 12
miles southeast of Schuylkill Haven, moving north at 15 mph.
Winds up to 40 mph and dime size hail are possible with this storm.
Locations impacted include...
Hamburg, Shoemakersville, Lenhartsville, Jordan Valley, Wanamakers,
New Tripoli and Centerport.
LAT...LON 4058 7604 4057 7602 4063 7600 4065 7598
4070 7583 4072 7575 4073 7566 4045 7587
4050 7607
TIME...MOT...LOC 1725Z 196DEG 12KT 4054 7595
$$
amcThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 8:02 PM EDT | Special Weather Statement | PHI | Warren | 43 min |
| Aug 3, 9:11 PM EDT | Areal Flood Warning | PHI | Burlington | 4 hr |
| Aug 3, 9:20 PM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 3 hr |
| Aug 4, 3:41 PM EDT | Small Craft Advisory | PHI | 9 hr | |
| Aug 3, 8:01 PM EDT | Special Weather Statement | PHI | Berks | 44 min |
| Aug 3, 8:11 PM EDT | Special Weather Statement | PHI | Lehigh | 49 min |
| Aug 3, 8:29 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh, Northampton | 46 min |
| Aug 3, 8:35 PM EDT | Areal Flood Advisory | PHI | Berks, Lehigh, Northampton | 4 hr |
| Aug 3, 8:54 PM EDT | Special Weather Statement | PHI | Berks | 51 min |
| Aug 3, 9:29 PM EDT | Special Weather Statement | PHI | Lehigh, Northampton | 46 min |
| Aug 4, 2:49 PM EDT | Areal Flood Advisory | PHI | Berks | 116 min |
Nearby
Special Weather Statements in Pennsylvania, 2017Every special weather statement in 2017
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.