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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 |
| Line of severe thunderstorms approaching Bradford |
| Composite reflectivity of storm over Carlisle in Cumberland county |
| Composite reflectivity of storm over Rapho Township/Mt. Joy in Lancaster county |
| Storm damage from Bradford |
| Storm damage from Rapho Township |
2007 Weather Events/Features:
- Strong Winds crossed the region on Dec 23rd, causing damage in spots.
- Ice and Snow Storm of December 13th
- First Clipper of the Season, December 5th
- Snow-Sleet-Freezing Rain-Rain of December 2nd and 3rd
- Snow Arrives in Central Pennsylvania (Nov 17-18)
- 2007 Holm Award
- New Snowfall/Winter reporting criteria for SkyWarn Spotters!
- October 2007 Warmest October Ever at Williamsport and Harrisburg
- Arctic Sea Ice Below Normal
- October 2007 will be the hottest October ever!
- October's (Record) Hot Weather
- Severe Storms and Tornado of 26 Sept 2007.
- Severe Thunderstorms - August 30, 2007
- Severe Thunderstorms - August 25, 2007
- Large Hail Producing Storms in Lycoming County - August 17th
- EF1 Tornado in Eastern Centre County (Aug 7th)
- Thunderstorms produced flooding, hail and wind damage on Sunday Evening (July 29th)
- Pulse severe storms on Saturday (July 28th)
- A Brief Reprieve From The Dry Summer Weather (July 20th)
- How dry has it been? (Mid July)
- Hot Weather Arrives in Central Pennsylvania (July 10th)
- Heavy Rain and Hail around Harrisburg on July 5th
- Office view of the State College fireworks display
- Pulse Storms in Record Heat of June 27th, 2007
- Widespread Severe Weather Event, June 19th, 2007
- Severe Thunderstorms in Northeast Flow - Day 2 - June 13th, 2007
- Severe Thunderstorms in Northeast Flow - Day 1 - June 12th, 2007
- Severe Squall Line Event June 8th, 2007
- Severe (Hail) Storms of 27 May 2007.
- NWS Open House Severe Weather Event, 12 May 2007.
- Severe (Hail) Storms of 10 May 2007.
- Late Season Nor'Easter (16 March).
- The Valentine's Day Storm (13-14 February).
- Late Start to the Snow - Winter 2006-07.
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