Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Overview

Storms crossed the region, leaving behind devastating winds and damage on July 20, 2008.

Severe Weather Reports and Warnings

Maps & Figures
Radar
Storm Reports

Maps & Figures


Pittsburgh SkewT Analysis 12UTC July 20	Sterling SkewT Analysis 12UTC July 20	Visible Satellite Imagery

Radar


Sterling Reflectivity	Pittsburgh Reflectivity	Sterling Storm Relative Velocity	Pittsburgh Velocity

Storm Reports

000
NWUS51 KCTP 210203
LSRCTP

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1002 PM EDT SUN JUL 20 2008

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

0357 PM     TSTM WND DMG     3 W HASTINGS            40.66N 78.77W
07/20/2008                   CAMBRIA            PA   TRAINED SPOTTER

            SEVERAL TREES AND WIRES DOWN IN SUSQUEHANNA TOWNSHIP IN
            NORTHERN CAMBRIA COUNTY

0406 PM     TSTM WND DMG     10 S CURWENSVILLE       40.83N 78.52W
07/20/2008                   CLEARFIELD         PA   EMERGENCY MNGR

            TREE DOWN IN FERGUSON TOWNSHIP

0416 PM     TSTM WND DMG     HOUTZDALE               40.83N 78.35W
07/20/2008                   CLEARFIELD         PA   EMERGENCY MNGR

            SEVERAL TREES AND WIRES DOWN IN HOUTZDALE

0423 PM     TSTM WND DMG     ALTOONA                 40.51N 78.40W
07/20/2008                   BLAIR              PA   EMERGENCY MNGR

            TREE DOWN IN ALTOONA

0424 PM     TSTM WND DMG     BELLWOOD                40.60N 78.33W
07/20/2008                   BLAIR              PA   EMERGENCY MNGR

            TREE DOWN IN BELLWOOD

0425 PM     TSTM WND DMG     CONFLUENCE              39.81N 79.35W
07/20/2008                   SOMERSET           PA   LAW ENFORCEMENT

            TREES DOWN

0441 PM     TSTM WND DMG     2 SW STATE COLLEGE      40.77N 77.88W
07/20/2008                   CENTRE             PA   EMERGENCY MNGR

            WIRES ON TREE ON RINGO ROAD IN FERGUSON TOWNSHIP

0442 PM     TSTM WND DMG     STATE COLLEGE           40.79N 77.86W
07/20/2008                   CENTRE             PA   EMERGENCY MNGR

            SEVERAL TREES AND WIRES DOWN IN THE BOROUGH OF STATE
            COLLEGE.

0449 PM     TSTM WND DMG     MILL HALL               41.10N 77.49W
07/20/2008                   CLINTON            PA   EMERGENCY MNGR

            TREES DOWN ACROSS ROAD

0449 PM     TSTM WND DMG     BEECH CREEK             41.07N 77.59W
07/20/2008                   CLINTON            PA   EMERGENCY MNGR

            TREES DOWN

0510 PM     TSTM WND DMG     5 NW WEIKERT            40.91N 77.35W
07/20/2008                   CENTRE             PA   PUBLIC

            EXTENSIVE WIND DAMAGE AT WOODWARD CROSSINGS. 15-20 TREES
            DOWN. ESTIMATED 60-70 MPH WINDS SPLIT LARGE BARN SUPPORT
            BEAMS. BARN ROOF ALSO SUSTAINED DAMAGE.

0515 PM     TSTM WND DMG     5 NE LEWISTOWN          40.65N 77.51W
07/20/2008                   MIFFLIN            PA   EMERGENCY MNGR

            MULTIPLE TREES DOWN IN LEWISTOWN NORTHEASTWARD INTO
            DECATOR TOWNSHIP.

0520 PM     TSTM WND DMG     MAPLETON                40.39N 77.94W
07/20/2008                   HUNTINGDON         PA   EMERGENCY MNGR

            WIRES DOWN.

0526 PM     TSTM WND DMG     MCCLURE                 40.71N 77.31W
07/20/2008                   SNYDER             PA   EMERGENCY MNGR

            TREES DOWN

0528 PM     TSTM WND DMG     12 SW MIDDLEBURG        40.67N 77.21W
07/20/2008                   JUNIATA            PA   EMERGENCY MNGR

            TREES DOWN AT BANNERVILLE

0534 PM     TSTM WND DMG     10 W MIDDLEBURG         40.79N 77.24W
07/20/2008                   SNYDER             PA   EMERGENCY MNGR

            SEVERAL TREES DOWN IN SPRING TOWNSHIP

0614 PM     TSTM WND DMG     LIVERPOOL               40.57N 76.99W
07/20/2008                   PERRY              PA   EMERGENCY MNGR

            SEVERAL TREES DOWN AT FERRY BOAT CAMP GROUND IN LIVERPOOL
            ON THE SUSQUEHANNA RIVER. ONE TREE FEEL ON
            MOTORCYCLE...BUT NO INJURIES.

0735 PM     TSTM WND DMG     2 N SPRING GROVE        39.91N 76.86W
07/20/2008                   YORK               PA   LAW ENFORCEMENT

            TREES DOWN BLOCKING RR CROSSING ON RT 116 JUST NORTH OF
            SPRING GROVE.


&&
CORRECTED TIME. SUMMARY LSR REPORT FOR 7/20/2008. SOME EVENT TIMES
CHANGED BASED ON RADAR.
$$

STEINBUGL