Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 92, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 9, 2011, 5:43 PM EDT for 5 counties in Pennsylvania; Morris County, Sussex County, Warren County, New Jersey. It was in force for 62 min. 3 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
- Jun 9, 2011, 5:43 PM EDT (21:43 UTC)
- Expired
- Jun 9, 2011, 6:45 PM EDT
- In force
- 62 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 140 km from the middle of the area, began a volume at 21:46 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 |
|---|---|---|---|
| Jun 9, 6:05 PM EDT | HAIL 1 | Brodheadsville, PA | |
| Jun 9, 6:35 PM EDT | TSTM WND GST 60 | Lehighton, PA | |
| Jun 9, 6:37 PM EDT | TSTM WND DMG | Mahoning Twp, PA | TREES DOWN. |
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 |
|---|---|---|---|
| Jun 9, 2:34 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 9.7 hours before the alert went out and 176 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
- 734 J/kg
- Mixed-layer CIN
- -235 J/kg
- Mixed-layer LCL
- 1935 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
453
WUUS51 KPHI 092143
SVRPHI
NJC027-037-041-PAC011-025-077-089-095-092245-
/O.NEW.KPHI.SV.W.0092.110609T2143Z-110609T2245Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
543 PM EDT THU JUN 9 2011
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...
THIS INCLUDES THE CITY OF ALLENTOWN...
NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
THIS INCLUDES THE CITY OF EASTON...
CARBON COUNTY IN NORTHEAST PENNSYLVANIA...
THIS INCLUDES THE CITY OF LEHIGHTON...
MONROE COUNTY IN NORTHEAST PENNSYLVANIA...
THIS INCLUDES THE CITY OF MOUNT POCONO...
WEST CENTRAL MORRIS COUNTY IN NORTHERN NEW JERSEY...
WESTERN SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
THIS INCLUDES THE CITY OF NEWTON...
WARREN COUNTY IN NORTHWEST NEW JERSEY...
* UNTIL 645 PM EDT
* AT 538 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 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 BRANCHVILLE TO 25 MILES
NORTHWEST OF STRAUSSTOWN...OR ALONG A LINE EXTENDING FROM 7 MILES
NORTHEAST OF NEWTON TO 41 MILES WEST OF LEHIGHTON...AND MOVING
SOUTHEAST AT 30 TO 35 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
SAYLORSBURG...NEW MAHONING...BELTZVILLE STATE PARK AND LEHIGHTON
AROUND 550 PM EDT...
ROSSLAND...COLUMBIA...PEN ARGYL AND PALMERTON AROUND 555 PM EDT...
HOPE AND WIND GAP AROUND 600 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES GREATEST KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
THURSDAY EVENING FOR NORTHERN DELAWARE AND NORTHEAST MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.
&&
LAT...LON 4118 7468 4073 7472 4079 7487 4028 7584
4053 7625 4059 7603 4064 7600 4074 7578
4091 7600 4101 7575 4107 7578 4114 7571
4113 7564 4123 7547 4125 7513 4116 7516
4115 7509 4109 7501 4115 7491 4127 7482
TIME...MOT...LOC 2142Z 308DEG 36KT 4112 7466 4074 7646
$$2 follow-up statements
641
WWUS51 KPHI 092204
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
604 PM EDT THU JUN 9 2011
NJC027-037-041-PAC011-025-077-089-095-092245-
/O.CON.KPHI.SV.W.0092.000000T0000Z-110609T2245Z/
SUSSEX NJ-WARREN NJ-MORRIS NJ-BERKS PA-LEHIGH PA-NORTHAMPTON PA-
CARBON PA-MONROE PA-
604 PM EDT THU JUN 9 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR MONROE...CARBON...NORTHAMPTON...LEHIGH...BERKS...WEST CENTRAL
MORRIS...WARREN AND WESTERN SUSSEX COUNTIES...
AT 559 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 13 MILES EAST OF ANDOVER TO
11 MILES NORTHWEST OF STRAUSSTOWN...OR ALONG A LINE EXTENDING FROM 14
MILES EAST OF NEWTON TO 28 MILES NORTHWEST OF READING...MOVING
SOUTHEAST AT 30 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
NEW TRIPOLI...NEFFS...ROXBURG AND STOCKERTOWN BY 610 PM EDT...
COFFEETOWN...HARMONY...TATAMY AND STRAUSSTOWN BY 615 PM EDT...
FORKS AND CLAUSSVILLE BY 620 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
THURSDAY EVENING FOR NORTHERN DELAWARE AND NORTHEAST MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.
&&
LAT...LON 4118 7468 4073 7472 4079 7487 4028 7584
4053 7625 4059 7603 4064 7600 4074 7578
4091 7600 4101 7575 4107 7578 4114 7571
4113 7564 4123 7547 4125 7513 4116 7516
4115 7509 4109 7501 4115 7491 4127 7482
TIME...MOT...LOC 2204Z 308DEG 36KT 4098 7443 4061 7623
$$235
WWUS51 KPHI 092218
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
618 PM EDT THU JUN 9 2011
NJC027-037-041-PAC011-025-077-089-095-092245-
/O.CON.KPHI.SV.W.0092.000000T0000Z-110609T2245Z/
SUSSEX NJ-WARREN NJ-MORRIS NJ-BERKS PA-LEHIGH PA-NORTHAMPTON PA-
CARBON PA-MONROE PA-
618 PM EDT THU JUN 9 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR SOUTHERN MONROE...CARBON...NORTHAMPTON...LEHIGH...BERKS...WEST
CENTRAL MORRIS...WARREN AND SOUTHWESTERN SUSSEX COUNTIES...
AT 616 PM EDT...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 23 MILES
EAST OF BUDD LAKE TO PORT CLINTON...OR ALONG A LINE EXTENDING FROM 8
MILES WEST OF PATERSON TO 17 MILES NORTHWEST OF READING...MOVING
SOUTHEAST AT 30 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
SHOEMAKERSVILLE...KUTZTOWN...GLENDON AND FREEMANSBURG BY 625 PM
EDT...
TOPTON...MACUNGIE...LYONS AND LEESPORT BY 630 PM EDT...
TEMPLE AND LAURELDALE BY 635 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
THURSDAY EVENING FOR NORTHERN DELAWARE AND NORTHEAST MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.
&&
LAT...LON 4108 7566 4106 7518 4109 7489 4107 7469
4073 7472 4079 7487 4028 7584 4053 7625
4059 7603 4064 7600 4074 7578 4091 7600
4101 7575
TIME...MOT...LOC 2218Z 308DEG 36KT 4089 7429 4053 7609
$$The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 4:41 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 64 min |
| Jun 9, 6:24 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 66 min |
| Jun 9, 6:44 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more | 61 min |
| Jun 9, 7:27 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Delaware, Montgomery | 48 min |
| Jun 9, 7:42 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Montgomery, Philadelphia | 33 min |
| Jun 9, 3:33 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 16 min |
| Jun 9, 5:34 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex | 41 min |
| Jun 9, 7:17 PM EDT | Special Weather Statement | PHI | Monmouth | 43 min |
| Jun 9, 7:21 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth | 39 min |
| Jun 9, 7:46 PM EDT | Special Marine Warning | PHI | 59 min | |
| Jun 9, 7:57 PM EDT | Severe Thunderstorm Warning | PHI | Mercer, Middlesex, Monmouth | 18 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2011Severe Thunderstorm Warnings in New Jersey, 2011Every severe thunderstorm warning in 2011
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.