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 approached Pennsylvania from the west on Sunday, the 6th of November, and hit very mild air as it entered PA. This abnormally warm air for early November and the strong wind shear in the lowest 10 thousand feet of the atmosphere caused Severe Thunderstorms to develop during the middle of the day. |
The storms produced widespread wind damage (mainly trees down and trees on wires) across all the of the northern half of Central PA, but the cells weakened as they moved into the Harrisburg area and the lower Susquehanna valley. A few hail reports were received, especially in eastern PA. This was one of the most widespread and damaging events of the year for Central PA. |
SPC Reports | Surface Front Animation | Structure Damage |
Balloon Soundings
12 UTC 11/06 (7:00 am EST) Early morning - Atmosphere Primed and Ready Weak CAPE but Strong Shear |
00 UTC 11/07 (7:00 pm EST) After the Front and Storms passed through |
12 UTC 11/06 (7:00 am EST) Early morning - Atmosphere Primed and Ready More Great Shear (see hodograph part |
00 UTC 11/07 (7:00 pm EST) After the Front and Storms passed through Note 50+ knot winds in lowest levels |
Photos & Video
Damage Pictures from Jackson Summit in
Tioga County
Radar
17:53 UTC (12:53 pm) | 18:05 UTC (1:05 pm) | 18:16 UTC (1:16 pm) | 18:29 UTC (1:29 pm) |
19:21 UTC (2:21 pm) | 19:30 UTC (2:30 pm) | 19:34 UTC (2:34 pm) | 19:56 UTC (2:56 pm) |
20:26 UTC (3:26 pm) | 20:57 UTC (3:57 pm) |
Storm Reports
Storm Damage Survey Results
PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 535 PM EDT MON NOV 7 2005 ...DOWNBURST DAMAGE DISCOVERED IN TIOGA COUNTY... A SURVEY TEAM FROM THE NATIONAL WEATHER SERVICE AND THE TIOGA COUNTY EMERGENCY MANAGEMENT AGENCY SURVEYED DAMAGE FROM STORMS THAT OCCURRED YESTERDAY (SUN NOV 6) NEAR JACKSON SUMMIT. THE STORM KNOCKED DOWN SEVERAL TREES AS WELL AS REMOVED A BARN ROOF AND SIDING FROM A HOUSE. SOME OF THE TIN BAR ROOF WAS FOUND ABOUT 150 YARDS AWAY FROM THE BARN ITSELF. WINDS WERE ESTIMATED TO BE AROUND 60 TO 70 MPH AND IT APPEARS THE DAMAGE WAS FROM A DOWNBURST. THERE WAS NO EVIDENCE OF A TORNADIC STORM. DOWNBURST STORMS CAN BE JUST AS DANGEROUS AS TORNADIC STORMS. WIND SPEEDS IN DOWNBURST CAN REACH WELL ABOVE 100 MPH AND CAN DAMAGE OR DESTROY STRUCTURES. ANYTIME A SEVERE THUNDERSTORM OR TORNADO WARNING IS ISSUED...SEEK SHELTER IN A STURDY STRUCTURE AND BE BELOW GROUND IF POSSIBLE. $$ ONDREJIK/JUNG |
Preliminary Local Storm Report
from Sunday Evening
NWUS51 KCTP 070117 LSRCTP PRELIMINARY LOCAL STORM REPORT...SUMMARY NATIONAL WEATHER SERVICE STATE COLLEGE PA 816 PM EST SUN NOV 06 2005 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0220 PM TSTM WND DMG RIDGWAY 41.43N 78.73W 11/06/2005 ELK PA LAW ENFORCEMENT TREES AND WIRES DOWN COUNTYWIDE 0225 PM TSTM WND DMG PORT ALLEGANY 41.81N 78.28W 11/06/2005 MCKEAN PA LAW ENFORCEMENT TREES/POWER LINES DOWN ON MAIN STREET 0238 PM TSTM WND DMG DUBOIS 41.12N 78.76W 11/06/2005 CLEARFIELD PA TRAINED SPOTTER TREES AND WIRES DOWN 0248 PM TSTM WND DMG PENFIELD 41.21N 78.60W 11/06/2005 CLEARFIELD PA LAW ENFORCEMENT WIRES DOWN AND TREE ON STRUCTURE 0255 PM TSTM WND DMG COUDERSPORT 41.77N 78.01W 11/06/2005 POTTER PA LAW ENFORCEMENT MULTIPLE TREES DOWN 0300 PM TSTM WND DMG EMPORIUM 41.51N 78.24W 11/06/2005 CAMERON PA LAW ENFORCEMENT TREES DOWN ON ROADS CAUSING NUMEROUS ACCIDENTS 0310 PM TSTM WND DMG EMPORIUM 41.51N 78.24W 11/06/2005 CAMERON PA TRAINED SPOTTER TREES DOWN AND ROADS CLOSED IN CAMERON COUNTY. ALSO HEARD OF SIMILAR DAMAGE IN ELK COUNTY. 0317 PM TSTM WND DMG COUDERSPORT 41.77N 78.01W 11/06/2005 POTTER PA LAW ENFORCEMENT TREES DOWN 0319 PM HAIL HARRISON VALLEY 41.92N 77.67W 11/06/2005 1.00 INCH POTTER PA LAW ENFORCEMENT HALF INCH TO ONE INCH SIZED HAIL 0330 PM TSTM WND GST GALETON 41.73N 77.64W 11/06/2005 60 MPH POTTER PA CO-OP OBSERVER 60 MPH GUST AND PEA SIZE HAIL 0335 PM TSTM WND DMG BROCKPORT 41.27N 78.73W 11/06/2005 ELK PA LAW ENFORCEMENT TREES AND WIRES DOWN 0339 PM TSTM WND DMG 7 S EMPORIUM 41.41N 78.24W 11/06/2005 CAMERON PA LAW ENFORCEMENT TREES AND WIRES DOWN NEAR CALEDONIA 0345 PM TSTM WND DMG TAMARACK 41.42N 77.85W 11/06/2005 CLINTON PA LAW ENFORCEMENT TREES DOWN BLOCKING ONE LANE OF RT 144 0346 PM TSTM WND DMG HOLLIDAYSBURG 40.43N 78.39W 11/06/2005 BLAIR PA LAW ENFORCEMENT TREES DOWN 0355 PM TSTM WND DMG DUNCANSVILLE 40.43N 78.43W 11/06/2005 BLAIR PA LAW ENFORCEMENT TREES DOWN 0400 PM TSTM WND DMG WELLSBORO 41.75N 77.30W 11/06/2005 TIOGA PA EMERGENCY MNGR ROOF PARTIALLY OFF THE AGWAY STORE 0401 PM TSTM WND DMG KNOXVILLE 41.96N 77.44W 11/06/2005 TIOGA PA LAW ENFORCEMENT ROOF OFF BARN 0402 PM HAIL MANSFIELD 41.81N 77.08W 11/06/2005 0.88 INCH TIOGA PA TRAINED SPOTTER HAIL COVERING GROUND 0403 PM TSTM WND DMG 5 S WESTFIELD 41.85N 77.54W 11/06/2005 TIOGA PA LAW ENFORCEMENT TREES DOWN NEAR SABINSVILLE 0404 PM HAIL MANSFIELD 41.81N 77.08W 11/06/2005 0.75 INCH TIOGA PA TRAINED SPOTTER PENNY SIZE HAIL 0409 PM TSTM WND DMG BELLEFONTE 40.91N 77.77W 11/06/2005 CENTRE PA LAW ENFORCEMENT TREES DOWN 0410 PM TSTM WND DMG HOLLIDAYSBURG 40.43N 78.39W 11/06/2005 BLAIR PA LAW ENFORCEMENT TREES DOWN 0410 PM TSTM WND DMG HUNTINGDON 40.50N 78.01W 11/06/2005 HUNTINGDON PA LAW ENFORCEMENT TREE LIMB ON VAN IN HUNTINGDON BORO 0415 PM TSTM WND DMG MILLERTON 41.98N 76.95W 11/06/2005 TIOGA PA LAW ENFORCEMENT POSSIBLE TORNADO DAMAGE IN JACKSON TWP...MULTIPLE TREES DOWN...TWISTED DEBRIS 0415 PM TSTM WND DMG MANSFIELD 41.81N 77.08W 11/06/2005 TIOGA PA LAW ENFORCEMENT TREES DOWN 0425 PM TSTM WND DMG WATERVILLE 41.32N 77.35W 11/06/2005 LYCOMING PA LAW ENFORCEMENT MULTIPLE TREES DOWN IN PINE CREEK VALLEY 0430 PM TSTM WND DMG LAMAR 41.01N 77.51W 11/06/2005 CLINTON PA LAW ENFORCEMENT TREES DOWN 0430 PM TSTM WND DMG LEWISTOWN 40.60N 77.57W 11/06/2005 MIFFLIN PA LAW ENFORCEMENT TREES DOWN ACROSS ALL OF MIFFLIN COUNTY 0440 PM TSTM WND DMG 5 NE LOCK HAVEN 41.19N 77.39W 11/06/2005 CLINTON PA LAW ENFORCEMENT TREES DOWN IN DUNSTABLE TWP 0440 PM TSTM WND DMG WILLIAMSPORT 41.24N 77.02W 11/06/2005 LYCOMING PA LAW ENFORCEMENT TREES DOWN 0455 PM TSTM WND DMG MIFFLINBURG 40.92N 77.05W 11/06/2005 UNION PA LAW ENFORCEMENT WIRES DOWN 0459 PM TSTM WND DMG WILLIAMSPORT 41.24N 77.02W 11/06/2005 LYCOMING PA LAW ENFORCEMENT TREES DOWN 0500 PM TSTM WND DMG 5 W LEWISBURG 40.96N 76.99W 11/06/2005 UNION PA LAW ENFORCEMENT TREES ON WIRES 0510 PM TSTM WND DMG HUGHESVILLE 41.24N 76.73W 11/06/2005 LYCOMING PA LAW ENFORCEMENT TREES DOWN AND METAL ROOFING ON WIRES 0510 PM TSTM WND DMG MILTON 41.01N 76.85W 11/06/2005 NORTHUMBERLAND PA EMERGENCY MNGR TREES ON HOUSE...ALSO TREES AND WIRES DOWN AT ANOTHER LOCATION IN MILTON 0516 PM TSTM WND DMG LAPORTE 41.42N 76.49W 11/06/2005 SULLIVAN PA LAW ENFORCEMENT TREES DOWN ON RT 154 0519 PM TSTM WND DMG 5 W DUSHORE 41.53N 76.50W 11/06/2005 SULLIVAN PA LAW ENFORCEMENT TREES ON CABIN CAUSED ROOF COLLAPSE IN CHERRY MILLS 0532 PM TSTM WND DMG 7 N DANVILLE 41.06N 76.61W 11/06/2005 MONTOUR PA LAW ENFORCEMENT TREES ON WIRES IN TWO LOCATIONS IN VALLEY TWP && $$ MMD
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