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 15, 2012, 3:25 PM EDT for 5 counties in Pennsylvania; Cecil County, Maryland. It was in force for 80 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 15, 2012, 3:25 PM EDT (19:25 UTC)
- Expired
- Oct 15, 2012, 4:45 PM EDT
- In force
- 80 min
- Issued by
- NWS Philadelphia/Mount Holly
Counties Cecil County, MD, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 96 km from the middle of the area, began a volume at 19:26 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
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.4 hours before the alert went out and 75 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
- 915 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 210 m²/s²
- 0-3 km storm-relative helicity
- 181 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
840
WWUS81 KPHI 151925
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
325 PM EDT MON OCT 15 2012
DEZ001-MDZ008-NJZ009-PAZ060-061-067>071-152045-
BERKS PA-BUCKS PA-CECIL MD-CHESTER PA-DELAWARE PA-HUNTERDON NJ-
LEHIGH PA-MONTGOMERY PA-NEW CASTLE DE-PHILADELPHIA PA-
325 PM EDT MON OCT 15 2012
...SHOWERS WITH HEAVY RAINFALL AND POSSIBLY AN ISOLATED THUNDERSTORM
WILL AFFECT HUNTERDON...BERKS...BUCKS...LEHIGH...MONTGOMERY...
PHILADELPHIA...DELAWARE...NEW CASTLE...CECIL AND CHESTER COUNTIES...
AT 316 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SHOWERS WITH HEAVY RAINFALL ALONG A LINE EXTENDING FROM 10 MILES
SOUTHWEST OF READING TO 25 MILES NORTH OF BALTIMORE...MOVING
NORTHEAST AT 30 MPH. THE SHOWERS WILL BE NEAR PUGHTOWN...VALLEY
FORGE...CHESTERBROOK...BRYN MAWR AROUND 325 PM...BIRDSBORO...SPRING
CITY...PHOENIXVILLE...AUDUBON AROUND 330 PM...ST. LAWRENCE AND
REIFFTON AROUND 335 PM.
VERY HEAVY RAIN RANGING FROM A QUARTER TO A HALF INCH WILL FALL FROM
THESE SHOWERS...AND WILL CAUSE WATER TO POND ON ROADS AND QUICKLY
FILL POOR DRAINAGE AREAS.
LAT...LON 3974 7612 3988 7600 4011 7595 4014 7589
4017 7594 4049 7581 4053 7494 4035 7487
4034 7494 4027 7485 4016 7481 3997 7512
3993 7513 3985 7524 3985 7533 3982 7539
3970 7552 3953 7601 3954 7606 3963 7616
$$
FORECASTER:
KEK/TFGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 15, 4:33 PM EDT | Special Weather Statement | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 87 min |
| Oct 15, 4:48 PM EDT | Special Weather Statement | PHI | Mercer, Middlesex, Monmouth | 87 min |
| Oct 15, 2:02 PM EDT | Special Weather Statement | PHI | Chester, Delaware | 88 min |
| Oct 15, 2:44 PM EDT | Special Weather Statement | PHI | Carbon, Monroe | 61 min |
| Oct 15, 7:33 PM EDT | Special Weather Statement | PHI | Kent, Sussex | 117 min |
Nearby
Special Weather Statements in Pennsylvania, 2012Special Weather Statements in Maryland, 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.