Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 94, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 8, 2014, 3:51 PM EDT for Bucks County, Montgomery County, Pennsylvania. It was in force for 24 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
- Jul 8, 2014, 3:51 PM EDT (19:51 UTC)
- Expired
- Jul 8, 2014, 4:15 PM EDT
- In force
- 24 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Bucks County, PA, Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 79 km from the middle of the area, began a volume at 19:53 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, 7.9 hours before the alert went out and 116 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
- 132 J/kg
- Mixed-layer CIN
- -176 J/kg
- Mixed-layer LCL
- 1646 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
529
WUUS51 KPHI 081951
SVRPHI
PAC017-091-082015-
/O.NEW.KPHI.SV.W.0094.140708T1951Z-140708T2015Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
351 PM EDT TUE JUL 8 2014
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA...
CENTRAL MONTGOMERY COUNTY IN SOUTHEAST PENNSYLVANIA...
* UNTIL 415 PM EDT
* AT 347 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THE STORM WAS NEAR MONTGOMERYVILLE...MOVING
NORTHEAST AT 30 MPH. THIS STORM IS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
IVYLAND AROUND 400 PM EDT...
DOYLESTOWN AND ROBESONIA AROUND 405 PM EDT...
GARDENVILLE AND RICHBORO AROUND 410 PM EDT...
LUMBERVILLE AROUND 415 PM EDT...
LAT...LON 4024 7555 4042 7506 4040 7502 4028 7487
4008 7534
TIME...MOT...LOC 1951Z 245DEG 26KT 4026 7522
$$
FORECASTER:JMThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 9:42 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 63 min |
| Jul 7, 10:04 PM EDT | Areal Flood Advisory | PHI | Carbon, Monroe | 3 hr |
| Jul 7, 10:45 PM EDT | Special Weather Statement | PHI | Northampton | 60 min |
| Jul 8, 4:12 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 33 min |
| Jul 8, 7:08 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester | 82 min |
| Jul 8, 7:19 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 116 min |
| Jul 8, 7:48 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 106 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2014Every severe thunderstorm warning in 2014
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.