Three separate severe weather events affected central Pennsylvania on June 3, 2020. The first event occurred during the pre-dawn hours, as strong thunderstorms pushed southward out of the Buffalo, NY area into the northwest mountains and produced wind damage before dissipating.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CTP wrote it up.
Three separate severe weather events affected central Pennsylvania on June 3, 2020. The first event occurred during the pre-dawn hours, as strong thunderstorms pushed southward out of the Buffalo, NY area into the northwest mountains and produced wind damage before dissipating. The second event comprised of an MCS that dropped quickly southeastward across the area during the late morning hours and produced occasional wind damage along it's path. The third event saw scattered thunderstorms, including one long-lived supercell, develop during the afternoon hours and drift southeastward through the evening hours.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS State College, PA wrote its last area forecast discussion before the first event at Jun 2, 11:00 PM EST, 1 hour 20 minutes earlier.
Area Forecast Discussion National Weather Service State College PA 1200 AM EDT Wed Jun 3 2020 .SYNOPSIS... It will be mild and increasingly humid overnight, with rounds of showers and potentially strong thunderstorms expected overnight into Wednesday. It will remain unsettled Thursday into Friday, and possibly right into the weekend. && .NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/... Short-range models bring the first of potentially three rounds of convection across the northeastern portion of the area overnight. Showers and storms are developing over southern Ontario and Lake Huron, and these are projected to drop southeastward across NE PA during the pre-dawn hours overnight. It will be a relatively mild and increasingly humid night, with lows generally holding in the upper 50s and 60s. && .SHORT TERM /6 AM WEDNESDAY MORNING THROUGH 6 PM WEDNESDAY/... A convective complex that is currently raging over the Upper Midwest is expected to dive to the E/SE overnight, with the remnants of it crossing northern PA Wednesday morning. A cold front will drop southeastward into the area by afternoon, with a third round of convection expected to develop across southern PA along and ahead of this front. It will be interesting to see how the outflow from the earlier convective complex impacts aftn storm development. Wednesday will be warm and humid, and highs could reach the mid to upper 80s southeast of the mountains before any convection reaches there later in the day. && .LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/... After crossing through the CWA Wed night, the cold front will stall near the PA-MD border on Thu, keeping a chance of rain showers and maybe a few PM tstms through Fri. Generally a quarter to half an inch of rain is expected across the southern counties Thu-Fri, with locally higher amounts in storms. Lesser amounts north. The stationary front is progged to move offshore Fri night, with slightly drier air moving in for Sat. Another cold front and shortwave trough may touch off isolated showers/storms Sat, but drier air will be a limiting factor. Cooler, drier air will move in behind this front for Sun-Mon. We will see a warming trend into the middle of next week as the remnants of TS Cristobal moving up the MS valley help build an upper ridge over the eastern US. && .AVIATION /04Z WEDNESDAY THROUGH SUNDAY/... Conditions tonight will likely remain VFR outside of SHRA/TSRA activity. A cluster of strong storms in western NY may hold together and move into northern and eastern parts of central PA between 05z and 10z Wed. For now, kept TSRA out of the TAF, but will continue to monitor. More in the way of active weather expected Wed. What is left of the large MCS currently over Wisconsin will track through the region during the morning hours Wed. Additional storms may develop behind this activity later Wed afternoon and early evening. Westerly winds will gust 20-25 kts during the day Wed, with higher gusts in storms. Outlook... Thu...Showers/t-storms likely especially srn 1/2. Fri-Sat...Chance of showers/t-storms. Sun...Dry weather with VFR conditions to return to the area. && .CLIMATE... May 2020: Harrisburg recorded the coldest May temperature on record /with records dating back to 1888/ with a low of 30 degrees on 5/10. A trace of snow also tied the record for snowiest May. Spring 2020 (March+April+May): A very warm March, chilly April, and roller coaster May (historic chill followed by summer-like warmth) resulted in a meteorological spring that was pretty close to/slightly above average in central PA. Precipitation was also near to slightly above average with the largest seasonal departure at Williamsport (+2.87"). Monthly and seasonal climate summaries are available on our website at weather.gov/climate/index.php?wfo=ctp && .CTP WATCHES/WARNINGS/ADVISORIES... None. && SYNOPSIS...Martin/Evanego NEAR TERM...Evanego SHORT TERM...Evanego LONG TERM...Gartner/Colbert AVIATION...Martin/Colbert CLIMATE...Steinbugl
Hazardous Weather Outlook National Weather Service State College PA 647 PM EDT Tue Jun 2 2020 PAZ004>006-011-012-037-041-042-046-053-032300- Warren-McKean-Potter-Cameron-Northern Clinton-Tioga- Northern Lycoming-Sullivan-Southern Lycoming-Columbia- 647 PM EDT Tue Jun 2 2020 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Tonight. Scattered severe thunderstorms with damaging winds 60 mph or greater and hail exceeding 1 inch in diameter are possible overnight. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms with damaging winds 60 mph or greater and hail exceeding 1 inch in diameter are possible on Wednesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ010-017>019-026>028-045-049>052-056>059-032300- Elk-Clearfield-Northern Centre-Southern Centre-Huntingdon-Mifflin- Juniata-Southern Clinton-Union-Snyder-Montour-Northumberland-Perry- Dauphin-Schuylkill-Lebanon- 647 PM EDT Tue Jun 2 2020 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms with damaging winds 60 mph or greater and hail exceeding 1 inch in diameter are possible on Wednesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ036-063>066-032300- Franklin-Cumberland-Adams-York-Lancaster- 647 PM EDT Tue Jun 2 2020 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms with damaging winds 60 mph or greater and hail exceeding 1 inch in diameter are possible on Wednesday. Locally heavy rainfall and isolated flash flooding are also possible Thursday into Thursday night. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ033>035-032300- Somerset-Bedford-Fulton- 647 PM EDT Tue Jun 2 2020 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms with damaging winds 60 mph or greater and hail exceeding 1 inch in diameter are possible on Wednesday. Locally heavy rainfall and isolated flash flooding are also possible late Wednesday into Wednesday night, and again Thursday into Thursday night. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ024-025-032300- Cambria-Blair- 647 PM EDT Tue Jun 2 2020 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms with damaging winds 60 mph or greater and hail exceeding 1 inch in diameter are possible on Wednesday. Locally heavy rainfall and isolated flash flooding are also possible late Wednesday into Wednesday night. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The State College radar (KCCX), 121 km away, was scanning. The volume nearest the first event began at 05:19 UTC.
47 thunderstorm wind, 3 hail. Local standard time, as filed.
A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto Whites Corner Road in Harrison Township.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires east of Smethport.
A severe thunderstorm producing winds estimated near 60 mph knocked down numerous trees and wires in the vicinity of Smethport school buildings.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires along Baker Road east of Smethport.
A severe thunderstorm producing winds estimated near 60 mph knocked down a large tree onto wires in Clearfield.
A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto wires northwest of Irvona.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees along Marengo Road in Halfmoon Township.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees and a telephone pole on Short Street in Tyrone.
A severe thunderstorm producing winds estimated near 60 mph knocked down a tree across the 600 block of West Nittany Avenue in State College.
A severe thunderstorm producing winds estimated near 60 mph knocked down a couple of trees across roadways between Bellefonte and Zion.
A severe thunderstorm producing winds estimated near 60 mph knocked down a few trees on the southeast side of Whitehall Road just west of Fairbrook.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires along Ferguson Valley Road north of Lewistown.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires on Muddy Run Road near Green Acres Lane northwest of Mifflin.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires on Jericho Road to the west of Oakland Mills.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires southeast of Shamokin.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees near the intersection of Route 22 and Route 743.
A severe thunderstorm produced a 58 mph wind gusts at a mesonet station near Hummelstown.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires at Mill Road and Bensing Road.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires at North Broad Street and East Walnut Street in Lancaster.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees across Wykoff Road near Sinnemahoning.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires near Lamar.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires east of Rebersburg.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees on Scholl Road east of Penns Creek.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees onto Route 104 near Penns Creek.
A severe thunderstorm produced quarter-sized hail in Troxelville.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires near Rebuck.
A severe thunderstorm producing winds estimated near 60 mph produced wind damage at a campground east of Beavertown.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires near Ogdensburg.
A severe thunderstorm producing winds estimated near 60 mph snapped multiple trees along Route 11 south of Port Trevorton.
A severe thunderstorm produced quarter-sized hail in Berrysburg.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires southeast of Pillow.
A sub-severe thunderstorm produced nickel-sized hail near Elizabethville.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires east of Elizabethville.
A severe thunderstorm producing winds estimated near 60 mph destroyed a barn near the intersection of Sawmill Road and Oriental Road in Chapman Township.
A severe thunderstorm producing winds estimated near 60 mph snapped several trees in Bellefonte and knocked down a tree across a road.
A severe thunderstorm producing winds estimated near 60 mph knocked down about a dozen trees west of Harper Tavern.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires near Richland.
A severe thunderstorm producing winds estimated near 60 mph knocked down a large tree and tore a copper roof off of a porch near Newmanstown.
A severe thunderstorm producing winds estimated near 60 mph knocked down several large trees near Newmanstown.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires northeast of Brickerville.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires southeast of Ephrata.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires southwest of Narvon.
A severe thunderstorm producing winds estimated near 60 mph knocked down a pole onto High Street in Carlisle.
A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto wires on South Spring Garden Street in Carlisle.
A severe thunderstorm producing winds estimated near 60 mph knocked down several large trees and damaged a garage near Dover.
A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto a house in East York.
A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto wires in York.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto Krista Lane in Dallastown.
A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto wires in Red Lion.
A severe thunderstorm producing winds estimated near 60 mph knocked down a tree and wires on Jefferson Lane near Windsor.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2020Every state in 2020This day in weather historyWarnings in Pennsylvania, June 2020
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 896042, 896043, 896044, 896045, 896046, 896047, 896048, 896049, 896050, 896051, 896052, 896054, 896057, 896058, 896060, 896061, 896328, 896062, 896063, 896087, 896088, 896090, 896092, 896094, 896038, 896095, 896096, 896097, 896099, 896040, 896100, 896041, 896103, 896104, 896106, 896307, 896308, 896309, 896310, 896311, and more.