Alert archive / Pennsylvania / Special Weather Statements in 2012
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Oct 19, 2012, 8:31 PM EDT for Berks County, Pennsylvania. It was in force for 44 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
- Oct 19, 2012, 8:31 PM EDT (00:31 UTC)
- Expired
- Oct 19, 2012, 9:15 PM EDT
- In force
- 44 min
- Issued by
- NWS Philadelphia/Mount Holly
County Berks County, PA
The radar
The Philadelphia radar (KDIX), 159 km from the middle of the area, began a volume at 00:34 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.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 0.5 hours before the alert went out and 203 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1810 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 167 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
910
WWUS81 KPHI 200031
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
831 PM EDT FRI OCT 19 2012
PAZ060-200115-
BERKS PA-
831 PM EDT FRI OCT 19 2012
...A STRONG THUNDERSTORM WILL AFFECT BERKS COUNTY...
AT 830 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 11 MILES NORTHWEST OF READING...MOVING NORTH AT
30 MPH. THE THUNDERSTORM WILL BE NEAR TEMPLE AROUND 830 PM...
CENTERPORT...SHOEMAKERSVILLE AROUND 845 PM...HAMBURG AND
LENHARTSVILLE AROUND 900 PM.
VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL POOR DRAINAGE AREAS.
WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM.
LAT...LON 4046 7638 4052 7634 4052 7624 4058 7606
4058 7602 4065 7599 4068 7590 4064 7582
4023 7600 4030 7613 4036 7621 4041 7631
$$
FORECASTER: HEAVENERThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 19, 9:36 PM EDT | Small Craft Advisory for Hazardous Seas | PHI | 18 hr | |
| Oct 19, 10:15 PM EDT | Special Weather Statement | PHI | Warren | 60 min |
| Oct 20, 3:16 PM EDT | Small Craft Advisory | PHI | 12 hr | |
| Oct 19, 8:42 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 63 min |
| Oct 19, 8:59 PM EDT | Tornado Warning | PHI | Berks | 31 min |
| Oct 19, 9:24 PM EDT | Special Weather Statement | PHI | Chester, Delaware, Montgomery | 96 min |
| Oct 19, 10:00 PM EDT | Areal Flood Advisory | PHI | Chester, Delaware | 63 min |
| Oct 19, 10:27 PM EDT | Special Weather Statement | PHI | Bucks, Montgomery | 63 min |
| Oct 19, 10:36 PM EDT | Special Weather Statement | PHI | Caroline | 54 min |
Nearby
Special Weather Statements in Pennsylvania, 2012Every special weather statement in 2012
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.