Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 253, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 26, 2006, 3:05 AM EDT for Bucks County, Lehigh County, Pennsylvania. It was in force for 55 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
- Aug 26, 2006, 3:05 AM EDT (07:05 UTC)
- Expired
- Aug 26, 2006, 4:00 AM EDT
- In force
- 55 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
Counties Bucks County, PA, Lehigh County, PA
The radar
The Philadelphia radar (KDIX), 100 km from the middle of the area, began a volume at 07:05 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 |
|---|---|---|---|
| Aug 26, 3:15 AM EDT | HAIL 0.5 | Quakertown, PA | HALF INCH HAIL REPORTED IN QUAKERTOWN. |
| Aug 26, 3:38 AM EDT | HAIL 0.75 | Perkasie, PA | PENNY SIZE HAIL WAS REPORTED IN PERKASIE ALONG WITH DOWNED TREE LIMBS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 7.1 hours before the alert went out and 244 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
- 979 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 1772 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 192 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 4.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KPHI 260705 SVRPHI PAC017-077-260800- /O.NEW.KPHI.SV.W.0253.060826T0705Z-060826T0800Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 305 AM EDT SAT AUG 26 2006 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN LEHIGH COUNTY IN EASTERN PENNSYLVANIA THIS INCLUDES THE CITY OF ALLENTOWN NORTHWESTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA * UNTIL 400 AM EDT * AT 301 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR ANCIENT OAKS...OR ABOUT 7 MILES SOUTHWEST OF ALLENTOWN...AND MOVING SOUTHEAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... EMMAUS BY 310 AM EDT... QUAKERTOWN BY 330 AM EDT... PERKASIE BY 340 AM EDT... DUBLIN BY 350 AM EDT... CHALFONT BY 355 AM EDT... DOYLESTOWN BY 400 AM EDT... LAT...LON 4062 7546 4054 7567 4023 7513 4041 7507 $$ EBERWINE
1 follow-up statement
000
WWUS51 KPHI 260726
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
326 AM EDT SAT AUG 26 2006
PAC077-260736-
/O.CAN.KPHI.SV.W.0253.000000T0000Z-060826T0800Z/
LEHIGH PA-
326 AM EDT SAT AUG 26 2006
...THE SEVERE THUNDERSTORM WARNING FOR LEHIGH COUNTY IS CANCELLED...
LAT...LON 4054 7531 4043 7548 4038 7541 4025 7519
4023 7513 4041 7507
$$
PAC017-260800-
/O.CON.KPHI.SV.W.0253.000000T0000Z-060826T0800Z/
BUCKS PA-
326 AM EDT SAT AUG 26 2006
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM EDT
FOR NORTHWESTERN BUCKS COUNTY...
AT 322 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR TRUMBAUERSVILLE...OR ABOUT 10 MILES SOUTH OF
ALLENTOWN...MOVING SOUTHEAST AT 30 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
PERKASIE...SILVERDALE AND SELLERSVILLE BY 340 AM EDT...
DUBLIN BY 345 AM EDT...
DOYLESTOWN...NEW BRITAIN AND CHALFONT BY 355 AM EDT...
LAT...LON 4054 7531 4043 7548 4038 7541 4025 7519
4023 7513 4041 7507
$$
EBERWINEThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 10:43 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 32 min |
| Aug 25, 11:05 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Montgomery | 40 min |
| Aug 25, 11:43 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Montgomery | 47 min |
| Aug 25, 11:53 PM EDT | Severe Thunderstorm Warning | PHI | Delaware | 52 min |
| Aug 26, 12:00 AM EDT | Severe Thunderstorm Warning | PHI | Philadelphia | 45 min |
| Aug 26, 1:55 AM EDT | Severe Thunderstorm Warning | PHI | Bucks | 50 min |
| Aug 26, 2:12 AM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh | 48 min |
| Aug 26, 3:30 AM EDT | Severe Thunderstorm Warning | PHI | Montgomery | 45 min |
| Aug 26, 4:11 AM EDT | Severe Thunderstorm Warning | PHI | Philadelphia | 49 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2006Every severe thunderstorm warning in 2006
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.