Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 115, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Nov 1, 2013, 7:53 AM EDT for 8 counties in Pennsylvania; Warren County, New Jersey. It was in force for 67 min. 12 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
- Nov 1, 2013, 7:53 AM EDT (11:53 UTC)
- Expired
- Nov 1, 2013, 9:00 AM EDT
- In force
- 67 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Warren County, NJ, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 123 km from the middle of the area, began a volume at 11:55 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 |
|---|---|---|---|
| Nov 1, 7:58 AM EDT | TSTM WND GST 54 | Stroudsburg, PA | |
| Nov 1, 8:10 AM EDT | TSTM WND DMG | Bartonsville, PA | TRRES AND POWER LIENS DOWN. |
| Nov 1, 8:15 AM EDT | TSTM WND DMG | Mertztown, PA | TREES DOWN |
| Nov 1, 8:20 AM EDT | TSTM WND DMG | Fogelsville, PA | 3 TELEPHONE POLES DOWN IN FOGELSVILLE AND NUMEROUS POWER OUTAGES ACROSS LEHIGH COUNTY |
| Nov 1, 8:25 AM EDT | TSTM WND GST 51 | Allentown, PA | MEASURED IN SOUTH ALLENTOWN |
| Nov 1, 8:30 AM EDT | TSTM WND DMG | Pen Argyl, PA | DAMAGE TO HOMES WITH WIRES DOWN. |
| Nov 1, 8:30 AM EDT | TSTM WND GST 53 | Allentown, PA | |
| Nov 1, 8:35 AM EDT | TSTM WND DMG | Nazareth, PA | TREES AND WIRES DOWN THROUGHOUT THE COUNTY. |
| Nov 1, 8:35 AM EDT | TSTM WND DMG | Nazareth, PA | TREES AND WIRES DOWN THROUGHOUT THE COUNTY. |
| Nov 1, 8:45 AM EDT | TSTM WND GST 52 | Spring Mount, PA | |
| Nov 1, 8:59 AM EDT | TSTM WND DMG | Green Lane, PA | NUMEROUS TREES DOWN IN MONTGOMERY COUNTY AND GREEN LANE |
| Nov 1, 9:05 AM EDT | TSTM WND DMG | Fogelsville, PA | 3 TELEPHONE POLES DOWN IN FOGELSVILLE AND NUMEROUS POWER OUTAGES ACROSS LEHIGH COUNTY |
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 |
|---|---|---|---|
| Nov 1, 6:25 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 11.9 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
- 5 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 1071 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 324 m²/s²
- 0-3 km storm-relative helicity
- 479 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
737
WUUS51 KPHI 011153
SVRPHI
NJC041-PAC011-017-025-029-077-089-091-095-011300-
/O.NEW.KPHI.SV.W.0115.131101T1153Z-131101T1300Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
753 AM EDT FRI NOV 1 2013
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN WARREN COUNTY IN NORTHWEST NEW JERSEY...
BERKS COUNTY IN EASTERN PENNSYLVANIA...
NORTHWESTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA...
LEHIGH COUNTY IN EASTERN PENNSYLVANIA...
SOUTHERN MONROE COUNTY IN NORTHEAST PENNSYLVANIA...
WESTERN MONTGOMERY COUNTY IN SOUTHEAST PENNSYLVANIA...
SOUTHEASTERN CARBON COUNTY IN NORTHEAST PENNSYLVANIA...
NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
CHESTER COUNTY IN SOUTHEAST PENNSYLVANIA...
* UNTIL 900 AM EDT
* AT 748 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A LINE OF HEAVY SHOWERS AND ISOLATED THUNDERSTORMS. THIS LINE
EXTENDED FROM PENN FOREST RESERVOIR TO LENHARTSVILLE TO
WERNERSVILLE TO NORRISVILLE...MOVING EAST AT 50 MPH. THIS LINE
IS CAPABLE OF PRODUCING DAMAGING WINDS TO 60 MPH.
THERE IS LITTLE TO NO LIGHTNING BEING DETECTED WITH THIS LINE,
HOWEVER VERY STRONG WINDS JUST ABOVE THE SURFACE CAN MIX DOWN WITH
THE LINE AS IT MOVES THROUGH RESULTING IN WIND DAMAGE.
* LOCATIONS IMPACTED INCLUDE...
SUN VALLEY...
MCMICHAEL...
SCHNECKSVILLE...
EAST STROUDSBURG...
HONEY BROOK...
ECHO LAKE...
PARKESBURG...
SPRINGTOWN...
QUAKERTOWN...
LIONVILLE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS LINE MAY CONTAIN LITTLE OR NO LIGHTNING. DO NOT WAIT TO HEAR
THUNDER BEFORE TAKING COVER. SEEK SHELTER IMMEDIATELY INSIDE A
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 AM EDT
FRIDAY MORNING FOR NORTHWESTERN NEW JERSEY AND EASTERN PENNSYLVANIA.
&&
LAT...LON 3973 7612 3988 7599 4011 7595 4014 7589
4030 7612 4061 7593 4097 7557 4109 7500
4052 7520 3974 7592
TIME...MOT...LOC 1151Z 256DEG 42KT 4093 7557 4063 7589
4034 7603 3978 7657
$$
FORECASTER: GORSE2 follow-up statements
561
WWUS51 KPHI 011225
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
825 AM EDT FRI NOV 1 2013
PAC025-011233-
/O.CAN.KPHI.SV.W.0115.000000T0000Z-131101T1300Z/
CARBON PA-
825 AM EDT FRI NOV 1 2013
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CARBON COUNTY IS
CANCELLED...
THE LINE OF HEAVY SHOWERS AND ISOLATED THUNDERSTORMS WITH STRONG
WINDS HAVE MOVED OUT OF THE AREA, THEREFORE THE SEVERE THUNDERSTORM
WARNING HAS BEEN CANCELLED.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 AM EDT
FRIDAY MORNING FOR NORTHWESTERN NEW JERSEY AND EASTERN PENNSYLVANIA.
LAT...LON 3988 7599 4011 7595 4014 7589 4021 7600
4050 7574 4081 7552 4082 7548 4085 7550
4101 7538 4109 7500 4052 7520 3974 7592
3973 7612
TIME...MOT...LOC 1223Z 256DEG 42KT 4101 7510 4071 7543
4043 7557 3987 7612
$$
NJC041-PAC011-017-029-077-089-091-095-011300-
/O.CON.KPHI.SV.W.0115.000000T0000Z-131101T1300Z/
WARREN NJ-BERKS PA-BUCKS PA-LEHIGH PA-MONROE PA-MONTGOMERY PA-
NORTHAMPTON PA-CHESTER PA-
825 AM EDT FRI NOV 1 2013
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 AM EDT
FOR CHESTER...NORTHAMPTON...WESTERN MONTGOMERY...SOUTHEASTERN
MONROE...EASTERN LEHIGH...NORTHWESTERN BUCKS...SOUTHEASTERN BERKS AND
WESTERN WARREN COUNTIES...
AT 822 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF HEAVY SHOWERS AND ISOLATED THUNDERSTORMS CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS LINE WAS
LOCATED FROM SHAWNEE TO BEERSVILLE TO BALLY TO 7 MILES NORTHWEST OF
MOUNT VERNON...MOVING EAST AT 50 MPH.
THERE IS LITTLE TO NO LIGHTNING BEING DETECTED WITH THIS LINE,
HOWEVER VERY STRONG WINDS JUST ABOVE THE SURFACE CAN MIX DOWN WITH
THE LINE AS IT MOVES THROUGH RESULTING IN WIND DAMAGE.
LOCATIONS IMPACTED INCLUDE...
WERRY LAKE...
STOCKERTOWN...
TRUMBAUERSVILLE...
THORNDALE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS LINE MAY CONTAIN LITTLE OR NO LIGHTNING. DO NOT WAIT TO HEAR
THUNDER BEFORE TAKING COVER. SEEK SHELTER IMMEDIATELY INSIDE A
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 AM EDT
FRIDAY MORNING FOR NORTHWESTERN NEW JERSEY AND EASTERN PENNSYLVANIA.
&&
LAT...LON 3988 7599 4011 7595 4014 7589 4021 7600
4050 7574 4081 7552 4082 7548 4085 7550
4101 7538 4109 7500 4052 7520 3974 7592
3973 7612
TIME...MOT...LOC 1223Z 256DEG 42KT 4101 7510 4071 7543
4043 7557 3987 7612
$$
FORECASTER: GORSE704
WWUS51 KPHI 011253
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
853 AM EDT FRI NOV 1 2013
NJC041-PAC011-017-029-077-089-091-095-011301-
/O.EXP.KPHI.SV.W.0115.000000T0000Z-131101T1300Z/
WARREN NJ-BERKS PA-BUCKS PA-LEHIGH PA-MONROE PA-MONTGOMERY PA-
NORTHAMPTON PA-CHESTER PA-
853 AM EDT FRI NOV 1 2013
...THE SEVERE THUNDERSTORM WARNING FOR CHESTER...NORTHAMPTON...
NORTHWESTERN MONTGOMERY...SOUTHEASTERN MONROE...EASTERN LEHIGH...
NORTHWESTERN BUCKS...SOUTHEASTERN BERKS AND WESTERN WARREN COUNTIES
WILL EXPIRE AT 900 AM EDT...
THE LINE OF HEAVY SHOWERS AND ISOLATED THUNDERSTORMS WITH STRONG
WINDS HAS SHIFTED EAST OF THE AREA, THEREFORE THIS SEVERE
THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE. AN ADDITIONAL
WARNING THOUGH REMAINS IN EFFECT FOR SOME EASTERN PORTIONS OF THE
AREA.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 AM EDT
FRIDAY MORNING FOR NORTHWESTERN NEW JERSEY AND EASTERN PENNSYLVANIA.
LAT...LON 3988 7599 4011 7595 4014 7589 4021 7600
4050 7574 4081 7552 4082 7548 4085 7550
4101 7538 4109 7500 4052 7520 3974 7592
3973 7612
TIME...MOT...LOC 1251Z 256DEG 42KT 4108 7468 4079 7501
4051 7515 3995 7571
$$
FORECASTER: GORSEThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 1, 2:21 AM EDT | Special Weather Statement | PHI | Lehigh, Northampton | 84 min |
| Nov 1, 3:14 AM EDT | Wind Advisory | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 9 hr |
| Nov 1, 6:45 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Monroe | 75 min |
| Nov 1, 8:37 AM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 68 min |
| Nov 1, 9:11 AM EDT | Severe Thunderstorm Warning | PHI | Bucks, Philadelphia | 79 min |
| Nov 1, 9:25 AM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 65 min |
| Nov 1, 10:09 AM EDT | Special Marine Warning | PHI | 81 min | |
| Nov 1, 10:29 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Cumberland, Monmouth, Ocean | 76 min |
| Nov 1, 1:40 PM EDT | Small Craft Advisory | PHI | 3 days |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2013Severe Thunderstorm Warnings in New Jersey, 2013Every severe thunderstorm warning in 2013
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.