August 9th, 2009 Severe Weather and Tornado Event

Overview

A cluster of thunderstorms developed over Lower Ontario and moved across Lake Erie into western New York State early Sunday afternoon (9 Aug 2009). These storms made lots of wind damage as they moved eastward through Buffalo, and surrounding areas. These storms then made a turn to the south, and into Northern PA. The storms were mainly one large long-lived bow echo (sometimes called a derecho), and one lone rotating cell lagging behind at the far western end of the bow echo. The bow echo blew down trees and power lines across a wide swath of Central PA from Bradford and Warren into Lock Haven and Williamsport, then continued down into the Lower Susquehanna River Valley. The rotating cell formed over Warren County, and moved to the south, into Elk County. The storm exhibited strong low-level rotation as it moved toward Saint Marys and Ridgway. The storm then continued into northern Clearfield County and strengthened. Low level reflectivity showed a classic hook echo and storm-relative velocity showed strong rotation just east of Penfield at 21:06 UTC (5:06 pm). The WSR-88D algorithms also identified a Tornado Vortex Signature from 21:01 to 21:11 UTC (5:01 to 5:11 pm) around Penfield and Parker Dam State Park. There were many reports of trees down along the path of this storm as well. An NWS Survey team did find evidence of a tornado that occurred near Tyler and Scattertown in Northern Clearfield and Southern Elk Counties. See the statement below for more information:

Tornado
Photos & Video
Radar
Storm Reports

Tornadoes:

Tornado - Tyler
Clearfield County

Date	AUG 09 2009
Time (Local)	4:58 to 5:02 PM EDT
EF Rating	EF1
Est. Peak Winds	95 to 100 MPH
Path Length	1.5 miles
Max Width	140 yards
Injuries/Deaths	0/0
Summary: THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS CONFIRMED A TORNADO NEAR TYLER IN CLEARFIELD COUNTY PENNSYLVANIA ON AUG 09 2009. THE TORNADO TOUCHED DOWN JUST NORTH OF SCATTERTOWN IN ELK COUNTY AND MOVED SOUTH OVER THE CLEARFIELD COUNTY BORDER THROUGH TYLER TO ABOUT A HALF MILE SOUTH OF TYLER. ONE HOME IN TYLER HAD MINOR DAMAGE AND ABOUT TWO DOZEN TREES WERE KNOCKED DOWN IN THE TORNADO PATH. ABOUT 75 TREES AND LARGE LIMBS WERE FELLED OVER A WIDER AREA OF HUSTON TOWNSHIP IN CLEARFIELD COUNTY AND JAY TOWNSHIP IN ELK COUNTY INCLUDING PENFIELD...PARKER DAM STATE PARK...HOLLYWOOD...SCATTERTOWN...AND GARDNER HILL.

Photos & Video

Radar


Storm Reports and Warnings for August 9, 2009	KCCX Reflectivity Loop 19:03 to 21:55 UTC (3:03 to 5:55 pm)	Line of Severe Storms across Northern PA at 1944Z (344 PM EDT).	Reflectivity of a Rotating Storm over the Elk/Clearfield Co border at 2106Z (506 PM EDT)


KCCX Reflectivity Loop 20:52 to 21:38 UTC (4:52 to 5:38 pm) over Elk and Clearfield counties.	KCCX Storm Relative Velocity Loop 20:52 to 21:38 UTC (4:52 to 5:38 pm) over Elk and Clearfield counties.

Storm Reports

LSRCTP

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE STATE COLLEGE PA
840 PM EDT SUN AUG 09 2009

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

0245 PM     TSTM WND DMG     RUSSELL                 41.92N 79.14W
08/09/2009                   WARREN             PA   EMERGENCY MNGR

            NUMEROUS TREES AND WIRES DOWN IN AND AROUND RUSSELL

0300 PM     TSTM WND DMG     KNOXVILLE               41.96N 77.44W
08/09/2009                   TIOGA              PA   TRAINED SPOTTER

            WIDESPREAD LARGE TREES DOWN. POWERLINES DOWN.

0300 PM     TSTM WND DMG     WESTFIELD               41.92N 77.54W
08/09/2009                   TIOGA              PA   TRAINED SPOTTER

            LARGE TREES AND WIRES DOWN AROUND WESTFIELD AND OSCEOLA

0320 PM     TSTM WND DMG     7 ENE WELLSBORO         41.78N 77.18W
08/09/2009                   TIOGA              PA   TRAINED SPOTTER

            LARGE TREES DOWN IN HILLS CREEK STATE PARK. ROADS BLOCKED
            AND VEHICLES DAMAGED. SWIMMING AREA EVACUATED.

0320 PM     TSTM WND DMG     BRADFORD                41.96N 78.64W
08/09/2009                   MCKEAN             PA   EMERGENCY MNGR

            WIDESPREAD TREES AND POWERLINES DOWN COUNTYWIDE.

0330 PM     TSTM WND DMG     3 S WELLSBORO           41.70N 77.30W
08/09/2009                   TIOGA              PA   TRAINED SPOTTER

            ROUTE 287 SOUTH OF WELLSBORO CLOSED DUE TO NUMEROUS LARGE
            TREES ACROSS THE ROAD.

0337 PM     TSTM WND DMG     5 E GALETON             41.73N 77.55W
08/09/2009                   TIOGA              PA   PUBLIC

            ROOFS OFF 2 BUILDINGS IN WESTERN GAINES TOWNSHIP. LARGE
            TREES DOWN.

0337 PM     TSTM WND DMG     GALETON                 41.73N 77.64W
08/09/2009                   POTTER             PA   PUBLIC

            ROOFS BLOWN OFF OF 2 BUILDINGS IN GALETON. LARGE TREES
            DOWN.

0345 PM     TSTM WND DMG     JERSEY SHORE            41.20N 77.27W
08/09/2009                   LYCOMING           PA   EMERGENCY MNGR

            WIDESPEAD DAMAGE IN LYCOMING COUNTY. LARGE TREES DOWN
            COUNTYWIDE. NUMEROUS HOMES AND CARS DESTROYED BY FALLING
            TREES. ROUTE 44 CLOSED DUE TO TREES ACROSS ROAD.
            WIDESPREAD DAMAGE IN LOYALSOCK...WILLIAMSPORT...MIFFLIN
            TOWNSHIP AND WATERVILLE.

0355 PM     TSTM WND DMG     LOCK HAVEN              41.14N 77.45W
08/09/2009                   CLINTON            PA   TRAINED SPOTTER

            NUMEROUS LARGE TREES/WIRES DOWN.

0415 PM     HAIL             ST. MARYS               41.43N 78.56W
08/09/2009  E1.00 INCH       ELK                PA   PUBLIC

0415 PM     TSTM WND DMG     MILTON                  41.01N 76.85W
08/09/2009                   NORTHUMBERLAND     PA   PUBLIC

            TREES DOWN.

0420 PM     TSTM WND DMG     LOCK HAVEN              41.14N 77.45W
08/09/2009                   CLINTON            PA   TRAINED SPOTTER

            LARGE HEALTHY TREES DOWN.

0425 PM     TSTM WND DMG     8 S ST. MARYS           41.31N 78.56W
08/09/2009                   ELK                PA   LAW ENFORCEMENT

            NUMEROUS LARGE TREES AND WIRES DOWN IN WEEDVILLE.

0446 PM     TSTM WND DMG     5 N WILLIAMSTOWN        40.65N 76.62W
08/09/2009                   SCHUYLKILL         PA   LAW ENFORCEMENT

            LARGE TREES DOWN ACROSS HUBLEY TOWNSHIP.

0450 PM     FLASH FLOOD      PORT ALLEGANY           41.81N 78.28W
08/09/2009                   MCKEAN             PA   EMERGENCY MNGR

            WATER ACROSS ROADS IN PORT ALLEGHENY...ALSO ELDRED
            BOROUGH.

0452 PM     TSTM WND DMG     1 N TOWER CITY          40.60N 76.55W
08/09/2009                   SCHUYLKILL         PA   LAW ENFORCEMENT

            LARGE TREES DOWN IN PORTER TOWNSHIP.

0455 PM     FLASH FLOOD      4 E BRADFORD            41.96N 78.56W
08/09/2009                   MCKEAN             PA   EMERGENCY MNGR

            FOSTER BROOK CREEK OVERFLOWING AND COVERING DERRICK ROAD.
            ROAD CLOSED.

0500 PM     FLASH FLOOD      3 E PORT ALLEGANY       41.81N 78.22W
08/09/2009                   MCKEAN             PA   FIRE DEPT/RESCUE

            NUMEROUS ROADS CLOSED DUE TO FLASH FLOODING AROUND PORT
            ALLEGHENY.

0501 PM     TSTM WND DMG     PINE GROVE              40.55N 76.39W
08/09/2009                   SCHUYLKILL         PA   LAW ENFORCEMENT

            NUMEROUS TREES DOWN ACROSS PINE GROVE TOWNSHIP.

0515 PM     TSTM WND DMG     1 E HARRISBURG          40.28N 76.87W
08/09/2009                   DAUPHIN            PA   TRAINED SPOTTER

            TREE FELL ON POWER LINE AND CAUGHT FIRE IN PAXTONIA.

0520 PM     TSTM WND DMG     MARYSVILLE              40.34N 76.93W
08/09/2009                   PERRY              PA   EMERGENCY MNGR

            NUMEROUS LARGE TREES DOWN IN MARYSVILLE.

0525 PM     TORNADO          5 ESE PENFIELD          41.18N 78.51W
08/09/2009                   CLEARFIELD         PA   EMERGENCY MNGR

            TORNADO REPORTED ON THE GROUND IN PARKER STATE PARK ALONG
            TYLER ROAD.

0540 PM     TSTM WND DMG     ELIZABETHTOWN           40.15N 76.60W
08/09/2009                   LANCASTER          PA   TRAINED SPOTTER

            TREES AND WIRES DOWN

0555 PM     TSTM WND DMG     1 WNW FELTON            39.86N 76.58W
08/09/2009                   YORK               PA   FIRE DEPT/RESCUE

            TREES AND WIRES DOWN

0605 PM     TSTM WND DMG     4 E DALLASTOWN          39.90N 76.57W
08/09/2009                   YORK               PA   TRAINED SPOTTER

            LARGE TREES DOWN IN WINDSOR.


&&

$$

BEACHLER