Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 209, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 19, 2009, 4:35 PM EDT for Monroe County, Pennsylvania. It was in force for 55 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
- Aug 19, 2009, 4:35 PM EDT (20:35 UTC)
- Expired
- Aug 19, 2009, 5:30 PM EDT
- In force
- 55 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Monroe County, PA
The radar
The Binghamton radar (KBGM), 126 km from the middle of the area, began a volume at 20:35 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, 8.6 hours before the alert went out and 202 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
- 277 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 953 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KPHI 192035
SVRPHI
PAC089-192130-
/O.NEW.KPHI.SV.W.0209.090819T2035Z-090819T2130Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
435 PM EDT WED AUG 19 2009
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN MONROE COUNTY IN NORTHEAST PENNSYLVANIA...
THIS INCLUDES THE CITY OF MOUNT POCONO...
* UNTIL 530 PM EDT
* AT 432 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED 7 MILES NORTH OF GOULDSBORO
STATE PARK...OR 12 MILES SOUTHEAST OF SCRANTON...AND MOVING
SOUTHEAST AT 25 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
6 MILES NORTHEAST OF GOULDSBORO STATE PARK AROUND 440 PM EDT...
7 MILES NORTHEAST OF TOBYHANNA AROUND 445 PM EDT...
SKYTOP...CANADENSIS...MOUNTAINHOME AND 8 MILES NORTHEAST OF
PARADISE VALLEY AROUND 505 PM EDT...
8 MILES NORTHEAST OF ALPINE MOUNTAIN AND 9 MILES NORTHEAST OF
HERNYVILLE AROUND 515 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.
&&
LAT...LON 4124 7513 4116 7516 4115 7509 4109 7504
4095 7519 4114 7563 4121 7558 4123 7554
4123 7552 4125 7550 4125 7531 4126 7514
TIME...MOT...LOC 2034Z 293DEG 21KT 4130 7545
$$
EBERWINE1 follow-up statement
000
WWUS51 KPHI 192115
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
515 PM EDT WED AUG 19 2009
PAC089-192130-
/O.CON.KPHI.SV.W.0209.000000T0000Z-090819T2130Z/
MONROE PA-
515 PM EDT WED AUG 19 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR NORTHERN MONROE COUNTY...
AT 513 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR MOUNT POCONO...MOVING
SOUTHEAST AT 20 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
PARADISE VALLEY BY 520 PM EDT...
SCOTRUN AND ALPINE MOUNTAIN BY 525 PM EDT...
HERNYVILLE...ANALOMINK...REEDERS AND 6 MILES NORTHWEST OF ARLINGTON
HEIGHTS BY 530 PM EDT...
LAT...LON 4112 7547 4114 7545 4115 7540 4120 7531
4124 7525 4126 7514 4124 7513 4116 7516
4115 7509 4109 7504 4095 7519 4109 7553
TIME...MOT...LOC 2115Z 325DEG 17KT 4113 7533
$$
EBERWINEThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 8:35 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 70 min |
| Aug 19, 4:30 PM EDT | Areal Flood Advisory | PHI | Monroe | 2 hr |
| Aug 19, 5:04 PM EDT | Flash Flood Warning | PHI | Monroe | 115 min |
| Aug 19, 5:08 PM EDT | Severe Thunderstorm Warning | PHI | Carbon | 37 min |
| Aug 19, 5:51 PM EDT | Areal Flood Advisory | PHI | Carbon | 114 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2009Every severe thunderstorm warning in 2009
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.