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| Severe Storms of 26 Sept 2007 |
Strong wind shear, abnormally warm temperatures, and high humidity for late September combined to produce severe thunderstorms - and one confirmed tornado near Tidioute, PA - over Northwest PA during the evening of Wednesday, 26 September 2007.
Numerous reports of funnel clouds were received that evening in real time as the event was on-going.
See the maps/pictures below for a quick summary of the storms Wed Evening.
A storm damage suurvey team investigated damage in Warren County on Friday. See their findings below:
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NOUS41 KCTP 282009
PNSCTP
PAZ004-290015-
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
409 PM EDT FRI SEP 28 2007
...FINAL DAMAGE SURVEY RESULTS FOR WARREN COUNTY...
...AN EF1 TORNADO OCCURRED NEAR TIDIOUTE WEDNESDAY EVENING IN
SOUTHERN WARREN COUNTY...
THE FOLLOWING IS A FINAL ASSESSMENT FOR THE DAMAGE THAT OCCURRED
IN WARREN COUNTY ON SEPTEMBER 26, 2007.
* EVENT DATE: SEPTEMBER 26, 2007
* ESTIMATED START TIME: 600 PM
* ESTIMATED END TIME: 610 PM
* EVENT TYPE: EF1 TORNADO
* EVENT LOCATION: FROM 2 MILES NORTHEAST OF TIDIOUTE TO 5 MILES
NORTHEAST OF TIDIOUTE.
* PEAK WIND: ESTIMATED AT 90-100 MPH.
* AVERAGE PATH WIDTH: 25 YARDS.
* PATH LENGTH: 3 MILES.
* INJURIES: NONE REPORTED.
* FATALITIES: NONE REPORTED.
* DISCUSSION/DAMAGE: THE TORNADO TOUCHED DOWN TWO MILES NORTHEAST
OF TIDIOUTE IN SOUTHERN WARREN COUNTY, THEN TRACKED NORTHEAST
ALONG THE ALLEGHENY RIVER FOR AN ADDITIONAL THREE MILES. SEVERAL
HUNTING CABINS AND UNINHABITED DWELLINGS WERE DAMAGED FROM THE
STORM. IN ADDITION, SEVERAL HUNDRED TREES WERE TOPPLED OR
DAMAGED ALONG THE TORNADO PATH. SEVERAL EYEWITNESSES SAW THE
DESCENDING FUNNEL CLOUD IN THE VICINITY OF TIDIOUTE AND ONE
REPORTED SEEING THE TORNADO ON THE GROUND NORTHEAST OF TIDIOUTE.
&&
FOR REFERENCE...THE ENHANCED FUJITA SCALE CLASSIFIES TORNADOES INTO
THE FOLLOWING CATEGORIES:
EF0...WIND SPEEDS 65 TO 85 MPH.
EF1...WIND SPEEDS 86 TO 110 MPH.
EF2...WIND SPEEDS 111 TO 135 MPH.
EF3...WIND SPEEDS 136 TO 165 MPH.
EF4...WIND SPEEDS 166 TO 200 MPH.
EF5...WIND SPEEDS GREATER THAN 200 MPH.
$$
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Damage Pictures from the Survey
(Healthy) Trees snapped off
In the middle of the tornado path
More healthy trees snapped off, and laying in multiple directions
Trees snapped and damage to structure/camp
Criss-crossing trees, uprooted
Tree damage in riparian zone of Allegheny River
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NWUS51 KCTP 262320
LSRCTP
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE STATE COLLEGE PA
720 PM EDT WED SEP 26 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0548 PM TSTM WND DMG TIDIOUTE 41.68N 79.40W
09/26/2007 WARREN PA EMERGENCY MNGR
PHONE LINES DOWN. HAIL ALSO REPORTED.
0550 PM HAIL TIDIOUTE 41.68N 79.40W
09/26/2007 E1.75 INCH WARREN PA EMERGENCY MNGR
HAIL AND FUNNEL CLOUD SPOTTED.
0608 PM FUNNEL CLOUD 3 WSW CLARENDON 41.76N 79.15W
09/26/2007 WARREN PA EMERGENCY MNGR
FUNNEL CLOUD SPOTTED AT CHAPMAN STATE PARK.
0610 PM HAIL CLARENDON 41.78N 79.10W
09/26/2007 E0.75 INCH WARREN PA PUBLIC
PENNY-SIZE HAIL REPORTED IN CLARENDON.
0620 PM FUNNEL CLOUD WARREN 41.84N 79.14W
09/26/2007 WARREN PA FIRE DEPT/RESCUE
THREE FUNNEL CLOUDS SPOTTED OVER WARREN.
&&
$$
CJE
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| Map of Warnings and preliminary reports - Summary for 26 Sept 2007. |
| Storm complex moving into western Warren County, note the bookend vortex already forming. |
| Storm as it produced golf-ball size hail in Tidioute. |
| Storm as it is entering Western McKean County. |
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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