Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 163, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 6, 2014, 7:36 PM EDT for 5 counties in Pennsylvania. It was in force for 54 min. 2 reports 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
- Sep 6, 2014, 7:36 PM EDT (23:36 UTC)
- Expired
- Sep 6, 2014, 8:30 PM EDT
- In force
- 54 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Berks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 156 km from the middle of the area, began a volume at 23:37 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 |
|---|---|---|---|
| Sep 6, 8:10 PM EDT | TSTM WND DMG | Windsor Twp, PA | TREE DOWN |
| Sep 6, 8:28 PM EDT | TSTM WND DMG | Weisenberg, PA | TREE DOWN BLOCKING ROADWAY |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 6, 2:07 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 11.6 hours before the alert went out and 231 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
- 1444 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 867 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
426
WUUS51 KPHI 062336
SVRPHI
PAC011-025-077-089-095-070030-
/O.NEW.KPHI.SV.W.0163.140906T2336Z-140907T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
736 PM EDT SAT SEP 6 2014
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
BERKS COUNTY IN EASTERN PENNSYLVANIA...
LEHIGH COUNTY IN EASTERN PENNSYLVANIA...
SOUTHERN MONROE COUNTY IN NORTHEAST PENNSYLVANIA...
CARBON COUNTY IN NORTHEAST PENNSYLVANIA...
WESTERN NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
* UNTIL 830 PM EDT
* AT 732 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS. THESE SEVERE STORMS EXTENDED FROM
SHEPPTON TO SUMMIT STATION TO TOWER CITY...MOVING EAST AT 30 MPH.
THESE STORMS ARE CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
NESQUEHONING AND WEATHERLY AROUND 800 PM EDT...
NEW MAHONING AND HAMBURG AROUND 805 PM EDT...
JIM THORPE AROUND 810 PM EDT...
WANAMAKERS AND STRAUSSTOWN AROUND 815 PM EDT...
CHRISTMANS AND NEW TRIPOLI AROUND 820 PM EDT...
SLATINGTON AND BELTZVILLE STATE PARK AROUND 825 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...MOVE INDOORS TO A
STURDY BUILDING AND STAY AWAY FROM WINDOWS. WHEN IT IS SAFE TO DO
SO...REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR TO THE
NATIONAL WEATHER SERVICE.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
SATURDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.
&&
LAT...LON 4052 7637 4052 7625 4059 7605 4058 7603
4065 7599 4074 7577 4084 7592 4092 7600
4100 7575 4102 7574 4105 7578 4107 7577
4103 7523 4046 7544 4027 7609 4036 7621
4049 7644
TIME...MOT...LOC 2336Z 273DEG 25KT 4086 7607 4057 7626
4045 7687
$$
FORECASTER: SFJ2 follow-up statements
687
WWUS51 KPHI 062358
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
758 PM EDT SAT SEP 6 2014
PAC011-025-077-089-095-070030-
/O.CON.KPHI.SV.W.0163.000000T0000Z-140907T0030Z/
BERKS PA-LEHIGH PA-MONROE PA-CARBON PA-NORTHAMPTON PA-
758 PM EDT SAT SEP 6 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR WESTERN NORTHAMPTON...CARBON...SOUTHWESTERN MONROE...LEHIGH AND
BERKS COUNTIES...
AT 756 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM LANSFORD TO HAMBURG TO 27
MILES WEST OF STRAUSSTOWN...OR ALONG A LINE EXTENDING FROM TAMAQUA TO
7 MILES SOUTHEAST OF SCHUYLKILL HAVEN TO 12 MILES NORTHWEST OF
ANNVILLE...MOVING EAST AT 30 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
HAMBURG BY 805 PM EDT...
JIM THORPE AND NEW MAHONING BY 810 PM EDT...
WEISSPORT...WANAMAKERS...LENHARTSVILLE AND LEHIGHTON BY 815 PM
EDT...
WEISSPORT EAST...PARRYVILLE AND STRAUSSTOWN BY 820 PM EDT...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
SATURDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.
LAT...LON 4052 7637 4054 7618 4059 7605 4058 7603
4065 7599 4074 7577 4084 7592 4092 7599
4098 7578 4098 7525 4046 7544 4027 7609
4049 7644
TIME...MOT...LOC 2358Z 273DEG 25KT 4085 7587 4056 7606
4044 7667
$$
SFJ111
WWUS51 KPHI 070019
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
819 PM EDT SAT SEP 6 2014
PAC089-070029-
/O.CAN.KPHI.SV.W.0163.000000T0000Z-140907T0030Z/
MONROE PA-
819 PM EDT SAT SEP 6 2014
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MONROE COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE COUNTY.
THUS THE WARNING HAS BEEN CANCELLED.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
SATURDAY EVENING FOR NORTHEAST NEW JERSEY. A SEVERE THUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM EDT SATURDAY EVENING FOR
DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND EASTERN
PENNSYLVANIA.
LAT...LON 4052 7634 4054 7617 4059 7605 4058 7603
4065 7599 4071 7581 4074 7577 4079 7584
4083 7548 4081 7547 4085 7531 4046 7544
4027 7609 4036 7621 4036 7623 4049 7644
TIME...MOT...LOC 0019Z 273DEG 26KT 4084 7567 4055 7586
4043 7647
$$
PAC011-025-077-095-070030-
/O.CON.KPHI.SV.W.0163.000000T0000Z-140907T0030Z/
BERKS PA-LEHIGH PA-CARBON PA-NORTHAMPTON PA-
819 PM EDT SAT SEP 6 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR WESTERN NORTHAMPTON...SOUTHEASTERN CARBON...LEHIGH AND BERKS
COUNTIES...
AT 817 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM BOWMANSTOWN TO LENHARTSVILLE
TO 16 MILES WEST OF STRAUSSTOWN...OR ALONG A LINE EXTENDING FROM
LEHIGHTON TO 16 MILES NORTH OF READING TO 7 MILES NORTH OF
ANNVILLE...MOVING EAST AT 30 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
PALMERTON AND JORDAN VALLEY BY 825 PM EDT...
SLATINGTON...SHOEMAKERSVILLE...CENTERPORT AND WALNUTPORT BY 830 PM
EDT...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
SATURDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.
LAT...LON 4052 7634 4054 7617 4059 7605 4058 7603
4065 7599 4071 7581 4074 7577 4079 7584
4083 7548 4081 7547 4085 7531 4046 7544
4027 7609 4036 7621 4036 7623 4049 7644
TIME...MOT...LOC 0019Z 273DEG 26KT 4084 7567 4055 7586
4043 7647
$$
SFJThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 1:37 PM EDT | Special Weather Statement | PHI | Northampton | 53 min |
| Sep 6, 2:13 PM EDT | Special Weather Statement | PHI | Chester | 62 min |
| Sep 6, 2:19 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 43 min |
| Sep 6, 2:43 PM EDT | Areal Flood Advisory | PHI | Chester | 4 hr |
| Sep 6, 3:21 PM EDT | Special Weather Statement | PHI | Berks, Bucks, Lehigh, Montgomery | 54 min |
| Sep 6, 3:45 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 60 min |
| Sep 6, 3:51 PM EDT | Flash Flood Warning | PHI | Chester | 4 hr |
| Sep 6, 4:52 PM EDT | Severe Thunderstorm Warning | PHI | Delaware | 36 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.