Heavy Rain in the Ohio and Tennessee Valleys; Watching for Tropical Cyclone Development in the Atlantic

Heavy to excessive rainfall may bring areas of flash and urban flooding over portions of the Ohio and Tennessee Valleys. Two tropical waves in the Atlantic are being monitored for tropical cyclone formation within the next few days. One tropical wave will bring periods of heavy rain, thunderstorms, flood risk, and landslides to Puerto Rico and the US Virgin Islands through Friday morning. Read More >

Overview

Widespread severe weather of June 19th, 2007


Storm reports for June 19th	Surface analysis for 3:00 pm June 19th (click image for larger view)	Pittsburgh SkewT analysis for 8:00 am June 19th (click image for larger view)

Visible satellite loop and lightning plot

Downburst Report
Photos & Video
Radar
Storm Reports

Downburst Report

000
NOUS41 KCTP 202215 CCA
PNSCTP
PAZ006-012-037-041-042-045-046-210230-

PUBLIC INFORMATION STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE STATE COLLEGE PA
613 PM EDT WED JUN 20 2007

...CORRECTED FOR TIMES...

...FINAL DAMAGE SURVEY RESULTS FOR LYCOMING COUNTY BETWEEN
MUNCY AND HUGESVILLE...

...SURVEY TEAM CONFIRMS A MICROBURST WITH AN EMBEDDED TORNADO...

THE FOLLOWING IS A FINAL ASSESSMENT FOR THE DAMAGE THAT OCCURRED
OVER BETWEEN MUNCY AND HUGESVILLE ON JUNE 19, 2007.

* EVENT DATE: JUNE 19, 2007

* ESTIMATED START TIME: 450 PM

* ESTIMATED END TIME: 457 PM

* EVENT TYPE: DOWNBURST WITH AND EMBEDDED TORNADO (EF-O)

* EVENT LOCATION: BETWEEEN MUNCY AND HUGESVILLE

* PEAK WIND: 65 TO 70 MPH

* AVERAGE PATH WIDTH: DOWNBURST WIDTH WAS NEARLY 1 MILE
  WIDE...WHILE THE TORNADO WIDTH WAS 50 TO 70 YARDS WIDE.

* PATH LENGTH: THE DOWNBURST PATH LENGTH WAS ABOUT 3.5
  MILES...WHILE THE TORNADO LENGTH WAS ABOUT 1 MILE LONG.

* INJURIES: ZERO INJURIES

* FATALITIES: ZERO FATALITIES

* DISCUSSION/DAMAGE: THE THUNDERSTORM PRODUCED A DOWNBURST WITH AN
  EMBEDDED TORNADO. THIS THUNDERSTORM CREATED A DAMAGE PATH THAT
  WAS OVER 3 MILES LONG AND SPORATIC LIGHT DAMAGE WAS APPARENT IN
  A MILE WIDE SWATH. THE TORNADO STARTED JUST NORTHEAST OF MUNCY
  AND WAS ON THE GROUND FOR ABOUT 1 MILE. THE WIDTH VARIED FROM 50
  TO 70 YARDS WIDE. DOZENS OF TREES WERE KNOCKED DOWN AND DOZENS
  MORE HAD BROKEN BRANCHES AND LOST LIMBS. A FEW STRUCTURES HAD
  MINOR DAMAGE. DUE TO THE DAMAGE THAT OCCURRED...WIND SPEEDS WERE
  ESTIMATED IN THE 65 TO 70 MPH RANGE...WHICH FIRMLY PLACES IT IN
  THE EF-0 RANGE ON THE ENHANCED FUJITA SCALE.

&&

Photos & Video

Radar


Severe thunderstorm over Lycoming county 2:30 pm.	Severe thunderstorm over Huntingdon county 2:03 pm.	Severe thunderstorm over Juniata county 3:12 pm.	Severe thunderstorm over Union county 4:10 pm.


Severe thunderstorm over Muncy 4:44 pm.	Severe thunderstorm over Cumberland County 4:46 pm.	Severe thunderstorm over Newburg 5:09 pm.	Severe thunderstorm over Cambelltown 6:54 pm.

Severe thunderstorm moving into Centre County 6:12 pm.	Line of Severe thunderstorms moving across Clearfield County around 8:00 pm.	Storm total precipitation near Harrisburg.	Storm total precipitation over eastern Lycoming County.

Storm Reports

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE STATE COLLEGE PA
130 AM EDT WED JUN 20 2007

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

0220 PM     TSTM WND DMG     5 NE WILLIAMSPORT       41.29N 76.95W
06/19/2007                   LYCOMING           PA   TRAINED SPOTTER

            NUMEROUS TREES DOWN AND MINOR STREET FLOODING NORTH OF
            WILLIAMSPORT.

0230 PM     HAIL             1 N WILLIAMSPORT        41.25N 77.02W
06/19/2007  E0.75 INCH       LYCOMING           PA   TRAINED SPOTTER

            PENNY SIZE HAIL REPORTED IN GRAMPIAN HILLS 1.6 MILES
            NORTH OF WILLIAMSPORT.

0303 PM     TSTM WND DMG     MOUNT UNION             40.38N 77.88W
06/19/2007                   HUNTINGDON         PA   COUNTY OFFICIAL

            HUNTINGDON COUNTY 911 CENTER REPORTED A TREE DOWN IN MT.
            UNION BOROUGH.

0313 PM     HAIL             MIFFLINTOWN             40.57N 77.40W
06/19/2007  E0.88 INCH       JUNIATA            PA   PUBLIC

0330 PM     TSTM WND DMG     3 WSW LAKE GORDON       39.75N 78.72W
06/19/2007                   BEDFORD            PA   EMERGENCY MNGR

            POWER LINES DOWN NEAR BEFORD VALLEY ROAD

0344 PM     TSTM WND DMG     BEAVER SPRINGS          40.74N 77.22W
06/19/2007                   SNYDER             PA   COUNTY OFFICIAL

            911 CENTER REPORTED TREES AND POWER POLE DOWN.

0407 PM     HAIL             LEWISTOWN               40.60N 77.57W
06/19/2007  E0.75 INCH       MIFFLIN            PA   PUBLIC

0412 PM     HAIL             MIFFLINBURG             40.92N 77.05W
06/19/2007  E1.00 INCH       UNION              PA   TRAINED SPOTTER

0415 PM     TSTM WND DMG     MIFFLINBURG             40.92N 77.05W
06/19/2007                   UNION              PA   NWS EMPLOYEE

            MIFFLINBURG BOWLING ALLEY SIGN DOWN. WEST MILTON BANK

            SIGN DOWN. ROOF OFF HOUSE NEAR JCT RTE 45 FOREST HILL RD.

0415 PM     HAIL             MIFFLINBURG             40.92N 77.05W
06/19/2007  E0.75 INCH       UNION              PA   NWS EMPLOYEE

0425 PM     HAIL             ST. THOMAS              39.94N 77.74W
06/19/2007  E0.75 INCH       FRANKLIN           PA   PUBLIC

0439 PM     HAIL             MUNCY                   41.20N 76.79W
06/19/2007  E0.75 INCH       LYCOMING           PA   BROADCAST MEDIA

            TV STORM TRACKER REPORTED HAIL ON ROUTE 180.

0445 PM     TSTM WND DMG     SELINSGROVE             40.80N 76.87W
06/19/2007                   SNYDER             PA   COUNTY OFFICIAL

            911 CENTER REPORTED TREES AND WIRES DOWN

0448 PM     HAIL             MUNCY                   41.20N 76.79W
06/19/2007  E0.25 INCH       LYCOMING           PA   TRAINED SPOTTER

            OBSERVER REPORTED HEAVY RAIN. A JEEP WAS OVERTURNED ON
            RTE 180. A HOUSE WAS STRUCK BY LIGHTNING IN WOLF TWP.

0449 PM     TSTM WND DMG     SUNBURY                 40.86N 76.79W
06/19/2007                   NORTHUMBERLAND     PA   COUNTY OFFICIAL

            911 CENTER REPORTED MULTIPLE TREES AND WIRES DOWN ALONG
            ROUTE 147.

0505 PM     TSTM WND DMG     HUGHESVILLE             41.24N 76.73W
06/19/2007                   LYCOMING           PA   BROADCAST MEDIA

            STORM TRACKER FOR TELEVISION STATION REPORTED POSSIBLE
            TORNADO AT RTE 118 CLARKSTOWN RD.

0505 PM     TSTM WND DMG     HUGHESVILLE             41.24N 76.73W
06/19/2007                   LYCOMING           PA   TRAINED SPOTTER

            NUMEROUS TREES DOWN. A SIGNIFICANT WIND SHIFT OCCURED.
            SEVERAL REPORTS OF POSSIBLE TORNADO AT RTE 118 AND FOX
            HOLLOW RD.

0509 PM     TSTM WND DMG     NEWBURG                 40.14N 77.55W
06/19/2007                   CUMBERLAND         PA   COUNTY OFFICIAL

            911 CENTER REPORTED WIDESPREAD TREE AND POWERLINE DAMAGE
            THOUGHOUT CUMBERLAND COUNTY.

0540 PM     HAIL             BLOOMSBURG              41.00N 76.46W
06/19/2007  E0.75 INCH       COLUMBIA           PA   COUNTY OFFICIAL

            TREES DOWN IN SUBURBS.

0545 PM     HAIL             MECHANICSBURG           40.21N 77.01W
06/19/2007  E0.25 INCH       CUMBERLAND         PA   TRAINED SPOTTER

            ESTIMATED WIND GUSTS OF 30 TO 40 MPH.

0545 PM     TSTM WND DMG     4 N DILLSBURG           40.17N 77.03W
06/19/2007                   CUMBERLAND         PA   PUBLIC

            TREE DOWN ON PORCH. PEA SIZED HAIL.

0545 PM     HAIL             DILLSBURG               40.11N 77.03W
06/19/2007  E0.88 INCH       YORK               PA   COUNTY OFFICIAL

            911 CENTER REPORTED LARGE HAIL AND TREES DOWN IN CAROL
            TWP.

0548 PM     FLASH FLOOD      SHIREMANSTOWN           40.22N 76.96W
06/19/2007                   CUMBERLAND         PA   PUBLIC

            OBSERVER REPORTED 1.25 INCHES OF RAIN IN PAST 30 MINUTES.


0548 PM     TSTM WND DMG     LANDISBURG              40.34N 77.31W
06/19/2007                   PERRY              PA   COUNTY OFFICIAL

            911 CENTER REPORTED TREES DOWN IN LANDISBURG AND
            MILLERSTOWN.

0548 PM     TSTM WND DMG     SHIREMANSTOWN           40.22N 76.96W
06/19/2007                   CUMBERLAND         PA   PUBLIC

            OBSERVER MEASURED 71 MPH WIND GUST WITH ANEMOMETER.
            NUMEROUS TREES DOWN IN LOWER ALLEN TWP INCLUDING ONE ON
            HOUSE.

0553 PM     TSTM WND DMG     HARRISBURG              40.28N 76.88W
06/19/2007                   DAUPHIN            PA   COUNTY OFFICIAL

            911 CENTER REPORTED TREES ON WIRES AND TREES DOWN IN
            VARIOUS PARTS OF THE CITY.

0610 PM     TSTM WND DMG     SPRUCE CREEK            40.62N 78.14W
06/19/2007                   HUNTINGDON         PA   COUNTY OFFICIAL

            911 CENTER REPORTED TREES DOWN.

0627 PM     HAIL             BELLEFONTE              40.91N 77.77W
06/19/2007  E0.75 INCH       CENTRE             PA   PUBLIC

0630 PM     TSTM WND DMG     HALLAM                  40.00N 76.60W
06/19/2007                   YORK               PA   COUNTY OFFICIAL

            911 CENTER REPORTED TREES DOWN.

0642 PM     TSTM WND DMG     MIDDLETOWN              40.20N 76.73W
06/19/2007                   DAUPHIN            PA   PUBLIC

            TREES DOWN

0655 PM     TSTM WND DMG     CAMPBELLTOWN            40.28N 76.58W
06/19/2007                   LEBANON            PA   COUNTY OFFICIAL

            911 CENTER REPORTED TREES AND WIRES DOWN

0726 PM     TSTM WND DMG     6 E HYNER               41.30N 77.55W
06/19/2007                   CLINTON            PA   COUNTY OFFICIAL

            911 CENTER REPORTED TREES AND WIRES DOWN IN HANEYVILLE

0733 PM     TSTM WND DMG     ELYSBURG                40.87N 76.55W
06/19/2007                   NORTHUMBERLAND     PA   COUNTY OFFICIAL

            911 CENTER REPORTED TREES DOWN ON ROUTE 487 AT KNOBELS
            AMUSEMENT PARK.

0750 PM     TSTM WND DMG     CLEARFIELD              41.02N 78.44W
06/19/2007                   CLEARFIELD         PA   COUNTY OFFICIAL

            911 CENTER REPORTED MULTIPLE TREES DOWN.

0753 PM     TSTM WND DMG     BAINBRIDGE              40.09N 76.67W
06/19/2007                   LANCASTER          PA   COUNTY OFFICIAL

            911 CENTER REPORTED TREES AND WIRES DOWN IN CONOY TWP.

0810 PM     TSTM WND DMG     CLEARFIELD              41.02N 78.44W
06/19/2007                   CLEARFIELD         PA   EMERGENCY MNGR

            TREES AND WIRES DOWN IN MAHAFFEY, CLEARFIELD BOROUGH AND
            LECONTES MILLS.

0810 PM     TSTM WND DMG     LECONTES MILLS          41.07N 78.26W
06/19/2007                   CLEARFIELD         PA   COUNTY OFFICIAL

            911 CENTER REPORTED MULTIPLE TREES DOWN ALONG ROUTE 879
            FROM LECONTES MILLS TO KARTHAUS.

0830 PM     TSTM WND DMG     PINE GLEN               41.10N 78.06W
06/19/2007                   CENTRE             PA   COUNTY OFFICIAL

            911 CENTER REPORTED LARGE LIMBS DOWN

0840 PM     TSTM WND DMG     RENOVO                  41.33N 77.75W
06/19/2007                   CLINTON            PA   COUNTY OFFICIAL

            911 CENTER REPORTED MANY TREES DOWN

1201 AM     TSTM WND DMG     2 NE NEW HOLLAND        40.12N 76.06W
06/20/2007                   LANCASTER          PA   EMERGENCY MNGR

            TREES DOWN ON WIRES. HOUSE STRUCK BY LIGHTNING.


&&

$$

ART

HAIL
Date	Time	Town	County	Hail Size	Measurement	Remarks	Report Source
2007-06-20	00:07:00 AM	Port Royal Borough	Juniata	Nickel 0.88"	Measured		PUBLIC
2007-06-19	06:35:00 PM	York	York	Pea 0.25"	Measured		PUBLIC
2007-06-19	03:50:00 PM	Mifflintown	Juniata	Pea 0.25"	Estimated		PUBLIC
2007-06-19	03:30:00 PM	Sayre		Pea 0.25"	Estimated		PUBLIC

WIND
Date	Time	Town	County	Wind Damage	Wind Speed	Measurement	Remarks	Report Source
2007-06-20	00:07:00 AM	Port Royal Borough	Juniata	Small Limbs Down	35	Measured		PUBLIC
2007-06-19	06:30:00 PM	York Township	York	Trees and Power Lines Down	70	Estimated		PUBLIC
2007-06-19	06:04:00 PM	Harrisburg	Dauphin	Power Lines Down	50	Estimated		PUBLIC
2007-06-19	11:02:00 PM	Harrisburg	Dauphin	Power Lines Down	50	Estimated		PUBLIC
2007-06-19	06:15:00 PM	Harrisburg	Dauphin	Trees Down	50	Estimated		PUBLIC
2007-06-19	06:45:00 PM	Londonderry Township	Dauphin	Trees Down	65	Estimated		PUBLIC
2007-06-19	06:50:00 PM	University Park	Centre	Small Limbs Down	35	Estimated		PUBLIC
2007-06-19	08:19:00 PM	Clearfield	Clearfield	Large Limbs Down	45	Measured		PUBLIC
2007-06-19	06:35:00 PM	York	York	Small Limbs Down	40	Estimated		PUBLIC