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 Aug 3, 2012, 4:15 PM EDT for Delaware County, Pennsylvania. It was in force for 60 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 3, 2012, 4:15 PM EDT (20:15 UTC)
- Expired
- Aug 3, 2012, 5:15 PM EDT
- In force
- 60 min
- Issued by
- NWS Philadelphia/Mount Holly
County Delaware County, PA
The radar
The Philadelphia radar (KDIX), 103 km from the middle of the area, began a volume at 20:18 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 3, 5:15 PM EDT | TSTM WND DMG | Linwood, PA | NUMEROUS TREES AND WIRES DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 8.3 hours before the alert went out and 60 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
- 1112 J/kg
- Mixed-layer CIN
- -70 J/kg
- Mixed-layer LCL
- 961 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
920 WWUS81 KPHI 032015 SPSPHI SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 415 PM EDT FRI AUG 3 2012 DEZ001-PAZ067-070-032115- CHESTER PA-DELAWARE PA-NEW CASTLE DE- 415 PM EDT FRI AUG 3 2012 ...A STRONG THUNDERSTORM WILL AFFECT CHESTER...DELAWARE AND NEW CASTLE COUNTIES... AT 414 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 6 MILES NORTHEAST OF NEWARK...MOVING NORTHEAST AT 10 MPH. THE THUNDERSTORM WILL BE NEAR NEWPORT AROUND 425 PM... HOCKESSIN...ELSMERE AROUND 435 PM...ASHLAND AROUND 450 PM...EDGEMOOR AROUND 505 PM AND BELLEFONTE AROUND 510 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. FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. DO NOT SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM APPROACHES. LAT...LON 4001 7566 3987 7535 3965 7558 3972 7579 $$ FORECASTER: HEAVENER
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 3:38 PM EDT | Special Weather Statement | PHI | Burlington | 67 min |
| Aug 3, 4:17 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 58 min |
| Aug 3, 4:21 PM EDT | Special Marine Warning | PHI | 84 min | |
| Aug 3, 4:35 PM EDT | Special Weather Statement | PHI | Monmouth | 55 min |
| Aug 3, 4:45 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 60 min |
| Aug 3, 5:12 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 63 min |
| Aug 3, 5:35 PM EDT | Special Weather Statement | PHI | Mercer | 55 min |
| Aug 3, 5:42 PM EDT | Special Weather Statement | PHI | Mercer | 63 min |
| Aug 3, 5:46 PM EDT | Areal Flood Advisory | PHI | Gloucester | 101 min |
| Aug 3, 5:55 PM EDT | Special Weather Statement | PHI | Burlington | 65 min |
| Aug 3, 6:20 PM EDT | Areal Flood Advisory | PHI | Burlington, Mercer | 2 hr |
| Aug 3, 6:23 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer | 43 min |
| Aug 3, 2:39 PM EDT | Special Weather Statement | PHI | Chester | 66 min |
| Aug 3, 7:33 PM EDT | Special Weather Statement | PHI | Bucks | 57 min |
| Aug 3, 2:58 PM EDT | Special Weather Statement | PHI | Sussex | 62 min |
| Aug 3, 3:57 PM EDT | Special Weather Statement | PHI | New Castle | 63 min |
| Aug 3, 4:14 PM EDT | Areal Flood Advisory | PHI | Kent, New Castle | 3 hr |
| Aug 3, 4:58 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 40 min |
| Aug 3, 5:24 PM EDT | Special Weather Statement | PHI | Cecil | 66 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.