Severe Weather
(One Tornado and areas of Wind Damage)
Occurred on August 29th, 2024
Tornado Details:
Public Information Statement National Weather Service State College PA 856 PM EDT Fri Aug 30 2024 ...NWS Damage Survey for 08/29/24 Tornado Event in Roaring Spring PA... .Roaring Spring Tornado... Rating: EF1 Estimated Peak Wind: 95 mph Path Length /statute/: 0.81 miles Path Width /maximum/: 100 yards Fatalities: 0 Injuries: 0 Start Date: 08/29/2024 Start Time: 04:17 PM EDT Start Location: 1 SSW Roaring Spring / Blair County / PA Start Lat/Lon: 40.3169 / -78.4082 End Date: 08/29/2024 End Time: 04:20 PM EDT End Location: 2 S Roaring Spring / Blair County / PA End Lat/Lon: 40.3066 / -78.4033 Survey Summary: A severe thunderstorm over southern Blair County spawned a tornado late in the afternoon on Thursday, August 29th. The tornado was on the ground for about 3 minutes, with a track length of just under a mile. The tornado path started in Roaring Spring Township, just east of State Route 867 and near a motorcycle repair shop. One to two dozen trees were either snapped or uprooted in this vicinity, with one of the trees landing on the garage of the repair shop and heavily damaging the roof. This is the point where the tornado peaked in intensity, producing maximum winds near 95 mph, which is in the EF-1 category. The tornado then moved south-southeast, roughly paralleling Dick Schoolhouse Road, producing sporadic areas of tree damage, with winds mostly between 65 and 85 mph. Near the end of the path length, just east of Dick Schoolhouse Road, about halfway between Orchard Road and Packing Shed Lane, the tornado flattened a narrow swath of crops in a cornfield. Shortly thereafter, the tornado dissipated. && EF Scale: The Enhanced Fujita Scale classifies tornadoes into the following categories: EF0.....65 to 85 mph EF1.....86 to 110 mph EF2.....111 to 135 mph EF3.....136 to 165 mph EF4.....166 to 200 mph EF5.....>200 mph NOTE: The information in this statement is preliminary and subject to change pending final review of the event and publication in NWS Storm Data. $$ |
Additional damage from thunderstorm wind gusts
occurred in Mill Hall, PA (Clinton County) and
Mifflintown, PA (Juniata County) that day.
Mill Hall Damage:
Public Information Statement National Weather Service State College PA 1136 AM EDT Sun Sep 1 2024 ...NWS Damage Survey Confirms 08/29/2024 Thunderstorm Wind Event in Clinton County... .Mill Hall Thunderstorm Wind Damage... Peak Wind /Est/: 80-85 mph Path Length /statute/: 6 miles Path Width /maximum/: 0.75 mile Fatalities: 0 Injuries: 0 Start Date: Aug 29, 2024 Start Time: 6:35 PM EDT Start Location: 4 SSE of Glen Union in Clinton Co, PA Start Lat/Lon: 41.18307/-77.55283 End Date: Aug 29, 2024 End Time: 7:03 PM EDT End Location: 1 NW Mill Hall in Clinton Co, PA End Lat/Lon: 41.11640/-77.50278 Survey Summary: Between 6:35 PM and 7:03 PM Thursday, Aug 29, 2024, a supercell thunderstorm produced straight line wind damage within its forward flank downdraft over a portion of Clinton County near Mill Hall. Most of the damage occurred in an area measuring 6 miles long and up to 0.75 miles wide, with estimated maximum winds of 80-85 mph. Numerous trees were pushed down in a southerly direction in the valleys from the West Branch Susquehanna down through Shade Hollow and then into Bald Eagle Creek. Sporadic damage was also found outside of this area, in a larger area measuring up to 3 miles wide. The National Weather Service conducted a storm survey in Clinton County on Friday, Aug 30. Tree damage was observed on both sides of Renovo Rd (Rt 120) just south of Eagleton Rd. It is estimated that this damage occurred at about 6:35 PM on Thursday, Aug 29. As the thunderstorm moved towards the southeast, it produced damage along Sugar Run Rd near Shade Hollow Rd, ripping pieces of roof off of two barns, and knocking down a few trees. The property owner took a video of golf ball sized hail falling at 6:52 PM. A few more trees were downed along Shade Hollow Rd farther to the southeast. Some of the most notable damage occurred off Creek Rd between Cottage Ln and Daisy Ln, including a row of 20+ pine trees that came down on one property at around 7:00 PM Thursday. Winds in this area were estimated near 85 mph. A partially connected root system and very wet soils likely made it easier for the trees to come down. Some of the trees fell onto a house. A utility pole with a transformer and wires also fell. Sporadic wind damage also occurred in the towns of Flemington and Lock Haven. A fence fell onto a car in Flemington, resulting in the entrapment of 1 person who was uninjured. A tree also fell across the road on the 300 block of West Water St in Lock Haven. We would like to thank the Clinton County Department of Emergency Services for their time and assistance in this storm survey. && NOTE: The information in this statement is preliminary and subject to change pending final review of the event and publication in NWS Storm Data. $$ |
Mifflintown Damage Pictures:
Public Information Statement National Weather Service State College PA 437 PM EDT Tue Sep 3 2024 ...NWS Damage Survey for 08/29/24 Thunderstorm Wind Event... .Mifflintown Thunderstorm Wind Damage... Peak Wind /Est/: 85-95 mph Path Length /statute/: 2 miles Path Width /maximum/: 0.6 mile Fatalities: 0 Injuries: 0 Start Date: Aug 29, 2024 Start Time: 9:47 PM EDT Start Location: 3 SSW Mcalisterville Start Lat/Lon: 40.59/-77.30 End Date: Aug 29, 2024 End Time: 10:06 PM EDT End Location: 4 WSW Thompsontown End Lat/Lon: 40.55/-77.30 Survey Summary: Between 9:47 PM and 10:06 PM on Thursday, August 29, 2024, a supercell thunderstorm produced straight line wind damage east of Mifflintown. The most extensive damage was to a couple of residences along Cedar Springs Road, with additional damage extending two miles south to just south of U.S. Highway 322 along William Penn Highway. The damage was about 0.6 miles wide with peak estimated wind speeds of 85-95 mph. The roofs of two residences along Cedar Springs Road were heavily damaged as portions of them were blown off to the south and southeast. Additionally, the side of a large open barn was blown over. Here and to the south, multiple trees either had their trunks snapped off or were blown over. This led to downed wires and subsequently multiple road closures. The southern extent of the brunt of the damage was found along William Penn Highway where a large tree was blown down and blocked the highway. The National Weather Service in State College would like to thank the Juniata County Department of Emergency Services for their time and assistance with this damage survey. && NOTE: The information in this statement is preliminary and subject to change pending final review of the event and publication in NWS Storm Data. $$
Preliminary Local Storm Report...Summary National Weather Service State College PA 924 PM EDT Fri Aug 30 2024 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0417 PM Tornado 1 SSW Roaring Spring 40.32N 78.41W 08/29/2024 Blair PA NWS Storm Survey An EF1 Tornado was confirmed south-southwest of Roaring Spring. Estimated maximum wind speed 95 mph with a path length of 0.81 miles. Width estimated to be 100 yards. 0652 PM Hail 3 NW Mill Hall 41.14N 77.53W 08/29/2024 M1.75 Inch Clinton PA Emergency Mngr reported via EMA video. 0417 PM Tstm Wnd Dmg 1 SSW Roaring Spring 40.31N 78.40W 08/29/2024 Blair PA 911 Call Center Multiple trees down along Dick Schoolhouse Road with some near the intersection of Orchard Road. 0417 PM Tstm Wnd Dmg 1 S Roaring Spring 40.32N 78.39W 08/29/2024 Blair PA 911 Call Center Multiple trees and wires down along Cabbage Creek Road and Woodbury Pike with some blocking roadways. 0425 PM Hail Berlin 39.92N 78.95W 08/29/2024 M1.25 Inch Somerset PA Emergency Mngr 0430 PM Hail 3 E Claysburg 40.29N 78.39W 08/29/2024 M1.00 Inch Blair PA Public Reported with a picture on social media, hail continued for 5 to 10 minutes. 0442 PM Tstm Wnd Dmg 2 ENE Claysburg 40.30N 78.42W 08/29/2024 Blair PA Public Multiple trees and wires down blocking Bloomfield Road between the intersections of Main Street and Cross Cove Road. 0454 PM Tstm Wnd Dmg 3 NNW Woodbury 40.27N 78.38W 08/29/2024 Bedford PA Public Numerous trees down along and on Frosty Hollow Road. 0508 PM Flash Flood Johnstown 40.33N 78.92W 08/29/2024 Cambria PA 911 Call Center Multiple vehicles in water with water rescues. Multiple flooded roadways in and around Johnstown. 0514 PM Hail 1 S Carlisle 40.19N 77.20W 08/29/2024 M0.88 Inch Cumberland PA Trained Spotter 0516 PM Tstm Wnd Dmg 1 WSW Carlisle 40.20N 77.22W 08/29/2024 Cumberland PA 911 Call Center Reports of two trees down in Carlisle. 0549 PM Flash Flood 1 SSE Indian Lake 40.03N 78.85W 08/29/2024 Somerset PA 911 Call Center One foot of water on Huckleberry Highway and Cherry Lane Road. One lane of South Shore Trail also washed out. 0639 PM Tstm Wnd Dmg 4 NW Lock Haven 41.18N 77.51W 08/29/2024 Clinton PA 911 Call Center Multiple trees and wires down blocking both lanes of traffic in Colebrook Township. 0654 PM Tstm Wnd Dmg 1 WSW Lock Haven 41.13N 77.47W 08/29/2024 Clinton PA 911 Call Center Fence knocked down onto a car with entrapment of one person. No injuries reported. 0655 PM Tstm Wnd Dmg Lock Haven 41.14N 77.45W 08/29/2024 Clinton PA 911 Call Center Tree down blocking the roadway near the 300 block of West Water Street. 0740 PM Flood Lock Haven 41.14N 77.45W 08/29/2024 Clinton PA 911 Call Center Multiple roadways in Lock Haven with water on the roadways. Some roadways throughout town closed. 0817 PM Tstm Wnd Dmg Millheim 40.89N 77.48W 08/29/2024 Centre PA 911 Call Center Tree and wires down along the roadway on Elk Street. 0823 PM Flash Flood Lock Haven 41.13N 77.45W 08/29/2024 Clinton PA Amateur Radio Two feet of water on Bellefonte Avenue in Lock Haven with a car stuck on East Park Street. 0945 PM Tstm Wnd Dmg 4 W Thompsontown 40.56N 77.31W 08/29/2024 Juniata PA 911 Call Center Trees and wires down blocking Texas Hollow Road between Center Road and Private Ridge Road. 0947 PM Tstm Wnd Dmg 3 SSW Mcalisterville 40.59N 77.30W 08/29/2024 Juniata PA 911 Call Center Roof blown off of a residence with multiple wires down. Car trapped between two live wires on the roadway. 0953 PM Tstm Wnd Dmg 3 W Thompsontown 40.56N 77.29W 08/29/2024 Juniata PA 911 Call Center Multiple wires down onto roadways in the vicinity of Country Legend Drive. 1006 PM Tstm Wnd Dmg 4 WSW Thompsontown 40.55N 77.30W 08/29/2024 Juniata PA 911 Call Center Large tree on blocking portions of William Penn Highway. 1010 PM Flash Flood 1 NNE Mcalisterville 40.64N 77.27W 08/29/2024 Juniata PA 911 Call Center Basement collapse and flooding with basement walls collapsing. 1010 PM Flash Flood 2 NW Mcalisterville 40.65N 77.30W 08/29/2024 Juniata PA 911 Call Center Basement collapse and multiple barn animals trapped. 1032 PM Flash Flood 2 WSW Thompsontown 40.56N 77.27W 08/29/2024 Juniata PA 911 Call Center Three feet of water along Locust Run at William Penn Highway. 1035 PM Flash Flood 4 ESE Mifflintown 40.56N 77.33W 08/29/2024 Juniata PA 911 Call Center Basement collapse due to heavy rainfall. 1047 PM Flash Flood 1 ENE Port Royal 40.54N 77.38W 08/29/2024 Juniata PA 911 Call Center Water into the first floor of a residence. 1106 PM Flash Flood 3 ENE Port Royal 40.56N 77.33W 08/29/2024 Juniata PA 911 Call Center Reports of basements filling rapidly with water, beginning to fill up. 1120 PM Flood 3 ESE Ickesburg 40.47N 77.23W 08/29/2024 Perry PA Public Reports of flooding. 1130 PM Flash Flood 3 ESE Mifflintown 40.56N 77.34W 08/29/2024 Juniata PA 911 Call Center Multiple residences along Miller Hill Road with water rapidly rising in basements. 1220 AM Tstm Wnd Dmg 3 WSW Thompsontown 40.56N 77.29W 08/30/2024 Juniata PA Dept of Highways Multiple reports of trees on wires and closed roads in Walker Township including Doe Run Rd, Center Rd, Locust Run Rd, and Freed Rd. 1220 AM Flash Flood 4 S Ickesburg 40.44N 77.29W 08/30/2024 Perry PA 911 Call Center Water completely over roadways in and around Eschol Ridge Road. 1230 AM Flash Flood 1 NE Ickesburg 40.50N 77.28W 08/30/2024 Perry PA 911 Call Center Car completely submerged on Dever Hollow Road. && $$ |