Severe Thunderstorms - August 25, 2007
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Severe Thunderstorms - August 25, 2007
Numerous thunderstorms developed during the late afternoon and early evening hours in a very warm, moist and unstable airmass over Central PA . Storms produced damaging winds, penny to quarter sized hail and torrential rainfall.

Widespread wind damage occurred in Bradford (McKean county) where over 100 trees were toppled and 60 homes were damaged. Another hard hit area included Rapho Township in Lancaster county. Strong winds also caused a tree to fall onto a car during a Corvette show in Carlisle, injuring 5.

PNSCTP
PAZ066-280045-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
432 PM EDT MON AUG 27 2007

...FINAL DAMAGE SURVEY RESULTS FOR NORTHWEST LANCASTER COUNTY...

...60 TO 80 MPH STRAIGHT LINE WINDS NEAR MT JOY SATURDAY EVENING
IN NORTHWEST LANCASTER COUNTY...

THE FOLLOWING IS A FINAL ASSESSMENT FOR THE DAMAGE THAT OCCURRED
OVER NORTHWEST LANCASTER COUNTY ON AUGUST 25, 2007.

* EVENT DATE: AUGUST 25, 2007

* ESTIMATED START TIME: 730 PM

* ESTIMATED END TIME: 740 PM

* EVENT TYPE: STRAIGHT LINE WIND GUSTS

* EVENT LOCATION: RAPHO TOWNSHIP, 2 MILES SOUTHEAST OF MY JOY

* PEAK WIND: 60-80 MPH

* INJURIES: NONE

* FATALITIES: NONE

* DISCUSSION/DAMAGE: MULTIPLE DOWNBURSTS PRODUCED STRAIGHT LINE
  WIND GUSTS OF 60-80 MPH FROM JUST EAST OF RT 772 EASTWARD FOR UP
  TO TWO MILES. THE TOPS OF TWO SILOS WERE SHEARED OFF IN THIS
  AREA. SEVERAL OUTBUILDINGS WERE DAMAGED...AS WELL AS CORN
  FIELDS. SEVERAL EYEWITNESSES HEEDED THE SEVERE THUNDERSTORM
  WARNING FROM THE NATIONAL WEATHER SERVICE AND TOOK SHELTER
  BEFORE THE STORM STRUCK.

&&



$$


PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1233 AM EDT SUN AUG 26 2007

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0455 PM HAIL YOUNGSVILLE 41.85N 79.32W
08/25/2007 E1.00 INCH WARREN PA PUBLIC

PUBLIC REPORT OF QUARTER-SIZED HAIL NEAR YOUNGSVILLE.

0455 PM TSTM WND DMG 3 S HERNDON 40.67N 76.85W
08/25/2007 NORTHUMBERLAND PA LAW ENFORCEMENT

TREES AND WIRES DOWN NEAR DALMATIA.

0500 PM HAIL BLOOMSBURG 41.00N 76.46W
08/25/2007 E0.75 INCH COLUMBIA PA LAW ENFORCEMENT

PENNY-SIZED HAIL REPORTED.

0500 PM TSTM WND DMG YOUNGSVILLE 41.85N 79.32W
08/25/2007 WARREN PA LAW ENFORCEMENT

TREES AND WIRES REPORTED DOWN IN YOUNGSVILLE.

0505 PM TSTM WND DMG 2 S PILLOW 40.61N 76.80W
08/25/2007 DAUPHIN PA FIRE DEPT/RESCUE

LARGE LIMBS DOWN ON POWER LINES AT THE INTERSECTION OF
ROUTE 25 AND NORTH CROSSROADS ROADS...RESPONDED TO BY
GRATZ FIRE CO.

0505 PM TSTM WND DMG 2 E BLOOMSBURG 41.00N 76.42W
08/25/2007 COLUMBIA PA LAW ENFORCEMENT

TREES DOWN ON WIRES IN SCOTT TWP.

0518 PM TSTM WND DMG 4 NW VALLEY VIEW 40.70N 76.58W
08/25/2007 SCHUYLKILL PA LAW ENFORCEMENT

TREES AND WIRES DOWN NEAR KLINGERSTOWN.

0522 PM TSTM WND DMG 2 W LICKDALE 40.46N 76.53W
08/25/2007 LEBANON PA LAW ENFORCEMENT

TREES REPORTED DOWN IN UNION TWP.

0541 PM TSTM WND DMG BRADFORD 41.96N 78.64W
08/25/2007 MCKEAN PA LAW ENFORCEMENT

NUMEROUS TREES AND POWER LINES DOWN...AND SOME RAODS
REMAIN CLOSED AS OF 930 PM.

0555 PM HAIL CARROLL VALLEY 39.75N 77.38W
08/25/2007 E0.88 INCH ADAMS PA TRAINED SPOTTER

NICKEL-SIZED HAIL AND WIND GUSTS ESTIMATED TO 50 MPH IN
CARROLL VALLEY.

0600 PM TSTM WND DMG FAIRFIELD 39.79N 77.37W
08/25/2007 ADAMS PA PUBLIC

PUBLIC REPORT OF TREES DOWN AND LOW-LYING FLOODING IN
VICINITY OF FAIRFIELD AND CARROLL VALLEY.

0600 PM TSTM WND DMG POTTSVILLE 40.68N 76.21W
08/25/2007 SCHUYLKILL PA LAW ENFORCEMENT

TREES REPORTED DOWN IN VICINITY OF POTTSVILLE.

0615 PM TSTM WND DMG 2 S TAMAQUA 40.78N 75.93W
08/25/2007 SCHUYLKILL PA LAW ENFORCEMENT

TREES REPORTED DOWN IN VICINITY OF SOUTH TAMAQUA.

0630 PM TSTM WND DMG CATAWISSA 40.95N 76.46W
08/25/2007 COLUMBIA PA TRAINED SPOTTER

SPOTTER 153011 REPORTED TREES DOWN AND MARBLE-SIZED HAIL
IN VICINITY OF CATAWISSA.

0635 PM TSTM WND DMG 3 S DANVILLE 40.92N 76.61W
08/25/2007 NORTHUMBERLAND PA NEWSPAPER

TREES REPORTED DOWN BETWEEN DANVILLE AND ELYSBURG.

0705 PM TSTM WND DMG DOVER 40.00N 76.85W
08/25/2007 YORK PA LAW ENFORCEMENT

TREES REPORTED DOWN NEAR DOVER.

0710 PM TSTM WND DMG CARLISLE 40.20N 77.20W
08/25/2007 CUMBERLAND PA LAW ENFORCEMENT

TREES AND WIRES REPORTED DOWN IN CARLILSE.

0714 PM HAIL CARLISLE 40.20N 77.20W
08/25/2007 E0.75 INCH CUMBERLAND PA PUBLIC

PUBLIC REPORT OF PENNY-SIZED HAIL IN THE VICINITY OF
CARLISLE.

0738 PM HAIL SHIREMANSTOWN 40.22N 76.96W
08/25/2007 E0.75 INCH CUMBERLAND PA TRAINED SPOTTER

SPOTTER 163016 REPORTED 3/4 INCH HAIL NEAR SHIREMANSTOWN.


0745 PM TSTM WND DMG 4 W MANHEIM 40.16N 76.47W
08/25/2007 LANCASTER PA EMERGENCY MNGR

TREES REPORTED DOWN ACROSS PORTIONS OF RAPHO AND EAST
DONEGAL TWPS.

0753 PM TSTM WND DMG GILBERTON 40.80N 76.22W
08/25/2007 SCHUYLKILL PA LAW ENFORCEMENT

TREES REPORTED DOWN.

0808 PM TSTM WND DMG 2 S MYERSTOWN 40.34N 76.31W
08/25/2007 LEBANON PA LAW ENFORCEMENT

TREES REPORTED DOWN ALONG ROUTE 501 BETWEEN MYERSTOWN AND
SCHAEFFERSTOWN.

0840 PM TSTM WND DMG COLONIAL PARK 40.30N 76.81W
08/25/2007 DAUPHIN PA LAW ENFORCEMENT

TREES REPORTED DOWN IN LOWER PAXTON...SUSQUEHANNA...SOUTH
HANOVER...WEST HANOVER...AND EAST HANOVER TWPS.

0845 PM TSTM WND DMG POTTSVILLE 40.68N 76.21W
08/25/2007 SCHUYLKILL PA LAW ENFORCEMENT

TREES REPORTED DOWN.

0900 PM FLASH FLOOD POTTSVILLE 40.68N 76.21W
08/25/2007 SCHUYLKILL PA LAW ENFORCEMENT

FLOODED BASEMENTS IN POTTSVILLE AND MINERSVILLE.



Cold front approaching NW PA with very warm and unstable airmass residing over much of the region
Cold front approaching NW PA with very warm and unstable airmass residing over much of the region

Line of severe thunderstorms approaching Bradford
Line of severe thunderstorms approaching Bradford

Composite reflectivity of storm over Carlisle in Cumberland county
Composite reflectivity of storm over Carlisle in Cumberland county

Composite reflectivity of storm over Rapho Township/Mt. Joy in Lancaster county
Composite reflectivity of storm over Rapho Township/Mt. Joy in Lancaster county

Storm damage from Bradford
Storm damage from Bradford

Storm damage from Rapho Township
Storm damage from Rapho Township

SPC storm reports
SPC storm reports


 
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Page Last Modified: 02 October 2007 07:34:27 UTC
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