Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 142, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 23, 2014, 5:17 PM EDT for 5 counties in Pennsylvania. It was in force for 58 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
- Jul 23, 2014, 5:17 PM EDT (21:17 UTC)
- Expired
- Jul 23, 2014, 6:15 PM EDT
- In force
- 58 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Berks County, PA, Bucks County, PA, Lehigh County, PA, Montgomery County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 133 km from the middle of the area, began a volume at 21:20 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 |
|---|---|---|---|
| Jul 23, 5:20 PM EDT | TSTM WND DMG | Greenwich Twp, PA | SEVERAL 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, 9.3 hours before the alert went out and 127 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
- 697 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 737 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 32 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.
794
WUUS51 KPHI 232117
SVRPHI
PAC011-017-077-091-095-232215-
/O.NEW.KPHI.SV.W.0142.140723T2117Z-140723T2215Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
517 PM EDT WED JUL 23 2014
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN BERKS COUNTY IN EASTERN PENNSYLVANIA...
WEST CENTRAL BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA...
LEHIGH COUNTY IN EASTERN PENNSYLVANIA...
NORTHWESTERN MONTGOMERY COUNTY IN SOUTHEAST PENNSYLVANIA...
SOUTH CENTRAL NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
* UNTIL 615 PM EDT
* AT 516 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THE STORM WAS NEAR LENHARTSVILLE...MOVING EAST
AT 20 MPH. THIS STORM IS CAPABLE OF PRODUCING QUARTER SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
NEW TRIPOLI AROUND 525 PM EDT...
KUTZTOWN AND FLEETWOOD AROUND 530 PM EDT...
LYONS AROUND 535 PM EDT...
CLAUSSVILLE AROUND 540 PM EDT...
TOPTON AND SCHNECKSVILLE AROUND 545 PM EDT...
COFFEETOWN AROUND 550 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE WINDS OF MORE THAN 57 MPH...OR HAIL ONE
INCH OR LARGER.
&&
LAT...LON 4068 7591 4070 7587 4068 7529 4025 7546
4050 7601
TIME...MOT...LOC 2117Z 288DEG 18KT 4056 7586
$$
FORECASTER:SFJ2 follow-up statements
441 WWUS51 KPHI 232132 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 532 PM EDT WED JUL 23 2014 PAC011-017-077-091-095-232215- /O.CON.KPHI.SV.W.0142.000000T0000Z-140723T2215Z/ BERKS PA-BUCKS PA-LEHIGH PA-MONTGOMERY PA-NORTHAMPTON PA- 532 PM EDT WED JUL 23 2014 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR SOUTH CENTRAL NORTHAMPTON...NORTHWESTERN MONTGOMERY...LEHIGH... WEST CENTRAL BUCKS AND NORTHEASTERN BERKS COUNTIES... AT 530 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR KUTZTOWN...OR 16 MILES NORTH OF READING...MOVING EAST AT 15 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... 6 MILES NORTH OF FLEETWOOD BY 535 PM EDT... KUTZTOWN BY 540 PM EDT... LYONS BY 550 PM EDT... TOPTON AND 7 MILES SOUTH OF CLAUSSVILLE BY 555 PM EDT... ALBURTIS...ANCIENT OAKS...MACUNGIE AND 6 MILES WEST OF ZIONSVILLE BY 615 PM EDT... IN ADDITION TO DAMAGING WINDS...FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. LAT...LON 4048 7597 4070 7583 4068 7529 4025 7546 TIME...MOT...LOC 2132Z 288DEG 13KT 4055 7581 $$ SFJ
650 WWUS51 KPHI 232155 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 555 PM EDT WED JUL 23 2014 PAC011-017-077-091-095-232215- /O.CON.KPHI.SV.W.0142.000000T0000Z-140723T2215Z/ BERKS PA-BUCKS PA-LEHIGH PA-MONTGOMERY PA-NORTHAMPTON PA- 555 PM EDT WED JUL 23 2014 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR SOUTH CENTRAL NORTHAMPTON...NORTHWESTERN MONTGOMERY...LEHIGH... WEST CENTRAL BUCKS AND NORTHEASTERN BERKS COUNTIES... AT 552 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR TOPTON...OR 13 MILES WEST OF ALLENTOWN...MOVING EAST AT 15 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... TOPTON BY 600 PM EDT... ALBURTIS...ANCIENT OAKS...MACUNGIE AND 6 MILES WEST OF ZIONSVILLE BY 615 PM EDT... IN ADDITION TO DAMAGING WINDS...FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. LAT...LON 4048 7597 4070 7574 4068 7529 4025 7546 TIME...MOT...LOC 2155Z 288DEG 13KT 4052 7571 $$ SFJ
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 4:33 PM EDT | Special Weather Statement | PHI | Carbon, Monroe | 57 min |
| Jul 23, 4:42 PM EDT | Special Weather Statement | PHI | Berks, Lehigh | 48 min |
| Jul 23, 5:25 PM EDT | Special Weather Statement | PHI | Monroe | 50 min |
| Jul 23, 6:14 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 61 min |
| Jul 23, 7:09 PM EDT | Special Weather Statement | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 51 min |
| Jul 23, 7:25 PM EDT | Special Weather Statement | PHI | Carbon, Lehigh, Monroe, Northampton | 65 min |
| Jul 23, 7:49 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 38 min |
| Jul 23, 7:59 PM EDT | Special Weather Statement | PHI | Delaware, Philadelphia | 61 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.