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 4, 2012, 3:55 PM EDT for Lebanon 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, 2012, 3:55 PM EDT (19:55 UTC)
- Expired
- Aug 4, 2012, 5:00 PM EDT
- In force
- 65 min
- Issued by
- NWS Philadelphia/Mount Holly
County Lebanon County, PA
The radar
The State College radar (KCCX), 154 km from the middle of the area, began a volume at 19:57 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, 7.9 hours before the alert went out and 200 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
- 2272 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 599 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
737
WWUS81 KPHI 041955
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
355 PM EDT SAT AUG 4 2012
PAZ060-042100-
BERKS PA-
355 PM EDT SAT AUG 4 2012
...A STRONG THUNDERSTORM WILL AFFECT WESTERN BERKS COUNTY...
AT 349 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 1 MILE NORTHEAST OF JONESTOWN...MOVING NORTHEAST
AT 20 MPH. THE THUNDERSTORM WILL BE NEAR STRAUSSTOWN AROUND 425 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 AND SMALL HAIL 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 4052 7635 4052 7624 4054 7622 4054 7617
4056 7613 4056 7611 4055 7609 4038 7626
4049 7643 4050 7643
$$
FORECASTER: HEAVENERThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 1:26 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 34 min |
| Aug 4, 2:13 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 62 min |
| Aug 4, 2:28 PM EDT | Special Marine Warning | PHI | 62 min | |
| Aug 4, 2:53 PM EDT | Special Weather Statement | PHI | Mercer | 67 min |
| Aug 4, 3:21 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 54 min |
| Aug 4, 3:35 PM EDT | Special Marine Warning | PHI | 38 min | |
| Aug 4, 3:42 PM EDT | Special Weather Statement | PHI | Middlesex, Somerset | 63 min |
| Aug 4, 3:47 PM EDT | Small Craft Advisory | PHI | 39 hr | |
| Aug 4, 4:01 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Morris, Somerset | 59 min |
| Aug 4, 5:30 PM EDT | Small Craft Advisory | PHI | 4 hr | |
| Aug 4, 1:12 PM EDT | Special Weather Statement | PHI | Philadelphia | 63 min |
| Aug 4, 1:46 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 44 min |
| Aug 4, 2:51 PM EDT | Special Weather Statement | PHI | Northampton | 54 min |
| Aug 4, 4:08 PM EDT | Special Weather Statement | PHI | Carbon, Monroe | 52 min |
| Aug 4, 4:49 PM EDT | Special Weather Statement | PHI | Carbon, Monroe | 56 min |
| Aug 4, 1:18 PM EDT | Special Weather Statement | PHI | New Castle | 57 min |
| Aug 4, 2:43 PM EDT | Areal Flood Advisory | PHI | New Castle | 105 min |
| Aug 4, 3:31 PM EDT | Flash Flood Warning | PHI | New Castle | 57 min |
| Aug 4, 3:31 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 28 min |
| Aug 4, 5:07 PM EDT | Special Weather Statement | PHI | Kent | 53 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.