Powerful Storm in the Western U.S.; Heavy Rain and Flooding Threat Across the Central Gulf Coast

A powerful storm system will continue to bring heavy mountain snow, rain, and high winds to the Pacific Northwest and northern California through midweek. Heavy rain and flash flooding potential exists across the central Gulf Coast over the next few days, including the Florida Panhandle. A Slight Risk (level 2 of 4) of excessive rainfall is in effect Tuesday. Read More >

Overview

A cold front touched off multiple severe thunderstorms which produced lots of damage across Southern PA.


Satellite and surface cold front	Visible satellite with lightning mapper

Photos & Video
Storm Reports

Photos & Video


Reflectivity Dauphin County 1706Z	Storm Relative Motion Dauphin County 1706Z	Reflectivity Dauphin County 1707Z	Storm Relative Motion Dauphin County 1711Z

Reflectivity Dauphin County 1711Z	Storm Relative Motion Dauphin County 1715Z	Reflectivity Dauphin County 1715Z	Storm Relative Motion LNS 1726Z

Reflectivity LNS 1726Z	Storm Relative Motion LNS 1730Z	Reflectivity LNS 1730Z	Storm Relative Motion LNS 1734Z

Reflectivity LNS 1734Z	Storm Relative Motion LNS 1738Z	Reflectivity LNS 1738Z	Storm Relative Motion LNS 1743Z

Reflectivity LNS 1743Z	Storm Relative Motion LNS 1747Z	Reflectivity LNS 1747Z	Storm Relative Motion LNS 751Z

Reflectivity LNS 1751Z	Storm Relative Motion LNS 1756Z	Reflectivity LNS 1756Z	Storm Relative Motion York 1810Z

Reflectivity York 1810Z

Storm Reports

NWUS51 KCTP 252124
LSRCTP

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE STATE COLLEGE PA
524 PM EDT SUN JUL 25 2010

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

1200 PM TSTM WND DMG 2 W NANTY-GLO 40.47N 78.87W
07/25/2010 CAMBRIA PA CO-OP OBSERVER

TREES DOWN ON RIDGE. PEAK GUST MEASURED AT 42 MPH. PENNY
SIZE HAIL.

1208 PM TSTM WND DMG SUMMERHILL 40.38N 78.76W
07/25/2010 CAMBRIA PA EMERGENCY MNGR

TREES DOWN IN SUMMERHILL TOWNSHIP

1213 PM HEAVY RAIN WINDBER 40.23N 78.83W
07/25/2010 U0.00 INCH SOMERSET PA EMERGENCY MNGR

HEAVY RAIN DISLODGED MAN HOLE COVERS

1225 PM TSTM WND DMG FANNETTSBURG 40.05N 77.83W
07/25/2010 FRANKLIN PA EMERGENCY MNGR

TREES DOWN ON TIMMONS RD

1245 PM TSTM WND DMG LOCK HAVEN 41.14N 77.45W
07/25/2010 CLINTON PA TRAINED SPOTTER

NUMEROUS TREES AND POWER LINES DOWN ALL OVER CITY. BOATS
BLOWN FROM MOORINGS ON RIVER.

1257 PM HAIL HUMMELSTOWN 40.27N 76.71W
07/25/2010 M1.25 INCH DAUPHIN PA PUBLIC

1258 PM TSTM WND DMG HARRISBURG 40.28N 76.88W
07/25/2010 DAUPHIN PA EMERGENCY MNGR

TREES DOWN AND BLOCKING EMERALD STREET

0100 PM TSTM WND DMG 1 NE HARRISBURG 40.29N 76.87W
07/25/2010 DAUPHIN PA EMERGENCY MNGR

TREE DOWN AT EARL AND VILLAGE INTERSECTION

0101 PM HAIL HUMMELSTOWN 40.27N 76.71W
07/25/2010 M1.00 INCH DAUPHIN PA PUBLIC

0102 PM TSTM WND DMG 2 SE HARRISBURG 40.26N 76.86W
07/25/2010 DAUPHIN PA EMERGENCY MNGR

TREES DOWN NEAR JAMES WAY PLAZA AND ON N67TH STREET

0102 PM TSTM WND GST 8 N LANCASTER 40.16N 76.30W
07/25/2010 M61.00 MPH LANCASTER PA ASOS

GUST OF 53 KT AT KLNS

0105 PM NON-TSTM WND DMG MIDDLETOWN 40.20N 76.73W
07/25/2010 DAUPHIN PA EMERGENCY MNGR

TREES DOWN ON THE 400 BLOCK OF CATHERINE STREET

0105 PM TSTM WND DMG 2 N BENDERSVILLE 40.01N 77.25W
07/25/2010 ADAMS PA PUBLIC

TREES AND LIMBS DOWN

0120 PM TSTM WND DMG 2 S CAMPBELLTOWN 40.25N 76.58W
07/25/2010 LEBANON PA EMERGENCY MNGR

TREES AND WIRES DOWN ACROSS SOUTH LONDONDERRY TWP.
POSSIBLE TORNADO SIGHTING IN THE AREA.

0120 PM HAIL HERSHEY 40.28N 76.65W
07/25/2010 M1.00 INCH DAUPHIN PA PUBLIC

0124 PM FUNNEL CLOUD 1 N BAINBRIDGE 40.10N 76.67W
07/25/2010 LANCASTER PA PUBLIC

PUBLIC PHOTO OF FUNNEL CLOUD TO THE NORTH OF BAINBRIDGE
RELAYED BY WGAL TV

0130 PM TSTM WND DMG LITITZ 40.15N 76.31W
07/25/2010 LANCASTER PA PUBLIC

TREES DOWN

0132 PM FUNNEL CLOUD MARIETTA 40.06N 76.55W
07/25/2010 LANCASTER PA EMERGENCY MNGR

FUNNEL CLOUD SIGHTED IN MARIETTA.

0132 PM TSTM WND DMG LITITZ 40.15N 76.31W
07/25/2010 LANCASTER PA TRAINED SPOTTER

NUMEROUS TREES AND POWER LINES DOWN. HUNDREDS WITHOUT
POWER.

0132 PM HAIL MANHEIM 40.16N 76.40W
07/25/2010 M1.00 INCH LANCASTER PA TRAINED SPOTTER

0133 PM TSTM WND DMG 4 ENE WILLOW HILL 40.13N 77.70W
07/25/2010 FRANKLIN PA EMERGENCY MNGR

TREE DOWN ON TIMMONS MT

0137 PM HAIL MANHEIM 40.16N 76.40W
07/25/2010 M1.00 INCH LANCASTER PA PUBLIC

0149 PM HAIL LANCASTER 40.04N 76.30W
07/25/2010 M1.00 INCH LANCASTER PA BROADCAST MEDIA

WGAL METEOROLOGIST REPORTED QUARTER TO ICE CUBE SIZE HAIL
AND A MEASURED WIND GUST OF 68 MPH.

0149 PM TSTM WND DMG LANCASTER 40.04N 76.30W
07/25/2010 LANCASTER PA BROADCAST MEDIA

60 TO 80 MPH WIND KNOCKED DOWN NUMEROUS TREES.

0150 PM TSTM WND DMG MILLERSVILLE 40.00N 76.35W
07/25/2010 LANCASTER PA EMERGENCY MNGR

*** 1 FATAL *** TREES AND WIRES DOWN ON CLOVER HILL ROAD.
WOMAN ELECTROCUTED BY DOWNED WIRES.

0150 PM TSTM WND DMG BLOOMSBURG 41.00N 76.46W
07/25/2010 COLUMBIA PA EMERGENCY MNGR

ROOF BLOWN OFF AND EXTENSIVE DAMAGE TO THE ARTS AND CRAFT
BUILDING AT THE BLOOMSBURG FAIRGROUNDS. ALSO SCATTERED
TREES AND POWER LINES DOWN IN BLOOMSBURG AND BERWICK.

0152 PM TSTM WND GST 6 W GETTYSBURG 39.83N 77.35W
07/25/2010 M71.00 MPH ADAMS PA CO-OP OBSERVER

COOP OBSERVER MEASURED 71 MPH WIND GUST. TREE AND LARGE
LIMBS DOWN.

0155 PM TSTM WND DMG 5 NNW SHENANDOAH 40.88N 76.24W
07/25/2010 SCHUYLKILL PA EMERGENCY MNGR

TREES DOWN

0156 PM TSTM WND DMG SHIPPENSBURG 40.05N 77.52W
07/25/2010 CUMBERLAND PA PUBLIC

TREES DOWN

0221 PM TSTM WND DMG YORK 39.96N 76.73W
07/25/2010 YORK PA PUBLIC

TREES AND LARGE LIMBS DOWN

&&
$$
PAH