A squall line developed over central Pennsylvania during the afternoon of June 29, 2019. This line progressed southeastward across the area, producing wind damage until it exited the Lower Susquehanna Valley by late afternoon.
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.
A squall line developed over central Pennsylvania during the afternoon of June 29, 2019. This line progressed southeastward across the area, producing wind damage until it exited the Lower Susquehanna Valley by late afternoon. A second line of storms developed across northern Pennsylvania by evening, and produced additional wind damage as it progressed southeastward across the area.
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 29, 9:48 AM EST, 54 minutes earlier.
Area Forecast Discussion National Weather Service State College PA 1048 AM EDT Sat Jun 29 2019 .SYNOPSIS... A cold front will settle south through the forecast area today. Scattered strong thunderstorms will accompany the passage of the cold front this afternoon into this evening. A brief period of cooler temperatures and comfortable humidity will follow Sunday into Monday before another fast moving cold front moves our way. && .NEAR TERM /UNTIL 7 PM THIS EVENING/... Stray TSRA over the SW fizzled, but may flare up as they move into the SCent mtns/Lower Susq where it is heating up nicely and CAPE already near 1500. Still a little cap with few cu out there yet. But, the forcing diving into the NW is helping TSRA to continue into the NW mtns, although the appear to be weakening very slightly at this moment. Still getting here at the right time to tap into CAPE since it appears to be overcoming whatever capping is currently in place where it is currently moving thru. Holding the line with all severe wording and timing all similar, with most action 2-8PM, but some storms could linger in the srn tier thru 10-11PM. Already 83F in the SE and it is only 10AM. Maxes still on track. Prev... Pooling PW extending along an elongated 5h shear axis and sfc cold front pushing southeastward towards NW PA this morning. The west-east oriented cold front will sag southward through the lower Lakes this morning and across central PA later today through this evening. Air mass becomes moderately unstable over much of central and eastern PA, and SPC has slightly expanded SLGT risk to cover more of my southwest and central counties while MRGL covers the rest. Deep layer shear will be weak and mean layer winds will be westerly, tending to downslope and dry. Some mid level warming to be overcome late morning through early afternoon, but with CAPEs forecast between 1500-2000J, we should be able to generate some decent cold pools and locally strong storms. Wind gusts the main severe threat. Highs will range from around 80 over the north, to the lower 90s over the Lower Susq. Right now the Heat Indices are forecast in the mid 90s, but if the dewpoints end up underestimated, we will see Heat Advisory criteria for a few hours over the SE. && .SHORT TERM /7 PM THIS EVENING THROUGH 6 PM SUNDAY/... Showers and storms should fade over the southern tier of CWA tonight as the frontal boundary pushes south of the Mason Dixon line by Sunday morning. Mins tonight range from upper 50s north to near 70 south. Much more comfortable/drier air mass arrives for Sunday with maxes some 4-6F cooler as well. && .LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/... Dry and cooler conds expected Sunday night associated with area of below normal PW. Heat and humidity quickly return early next week and build through the 4th of July. Expect above average temperatures next week with increasingly humid conditions. Forecast max heat index values should peak in the mid-upper 90s around Independence Day. Low confidence in the precip pattern which will be dominated by episodic convection tied to individual shortwaves - which offer very limited predictability at this range. && .AVIATION /14Z SATURDAY THROUGH WEDNESDAY/... Showers and thunderstorms VCTY KJST have dissipated but that area could flare up again as it gets closer to KMDT/KLNS early this aftn. A cluster of storms is almost to KBFD, and have timed these out initially, but also left mention (VCTS) in for most of the aftn there. Front drops through right around or slightly after peak heating and numerous TSRA expected through all aftn. The srn terminals could see them last thru 01-02Z. After the rain, possible IFR cigs and vsbys form overnight, especially at IPT and JST. But some drying time for BFD before sunset may preclude fog there except for a brief time. Just the tiniest chc of a SHRA on Sunday in the heating of the aftn, mainly NE of KIPT and near KJST. Otherwise, expect VFR. .Outlook... Mon...No Sig Wx. Tue-Wed...Scattered PM thunderstorms possible. && .CTP WATCHES/WARNINGS/ADVISORIES... None. && SYNOPSIS...DeVoir NEAR TERM...Dangelo/DeVoir SHORT TERM...DeVoir LONG TERM...Steinbugl AVIATION...Dangelo/Ceru
Hazardous Weather Outlook National Weather Service State College PA 402 AM EDT Sat Jun 29 2019 PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-300815- Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield- Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-Mifflin- Juniata-Somerset-Bedford-Fulton-Franklin-Tioga-Northern Lycoming- Sullivan-Southern Clinton-Southern Lycoming-Union-Snyder-Montour- Northumberland-Columbia-Perry-Dauphin-Schuylkill-Lebanon-Cumberland- Adams-York-Lancaster- 402 AM EDT Sat Jun 29 2019 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Today and tonight. Scattered, strong to severe thunderstorms with gusty winds and isolated instances of hail are possible Saturday afternoon and evening. .DAYS TWO THROUGH SEVEN...Sunday through Friday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement
National Weather Service State College PA
1040 AM EDT Sat Jun 29 2019
PAZ017-291530-
Clearfield PA-
1040 AM EDT Sat Jun 29 2019
...A STRONG THUNDERSTORM WILL AFFECT PARTS OF CLEARFIELD COUNTY UNTIL
1130 AM EDT...
At 1040 AM EDT, Doppler radar indicated a strong thunderstorm 9 miles
east of Punxsutawney, moving east at 35 mph.
Wind gusts 40 to 50 mph are possible.
Locations impacted include...
Clearfield, Philipsburg, Woodland, Curwensville, Hyde, Osceola Mills,
Chester Hill, Houtzdale, Jeffries, Morrisdale, West Decatur, Ramey,
Brisbin, Mahaffey, Grampian, Kylertown, Wallaceton, Troutville, Glen
Hope and Lumber City.
LAT...LON 4103 7880 4099 7809 4098 7808 4095 7812
4096 7817 4095 7816 4092 7818 4091 7822
4088 7823 4088 7825 4087 7824 4086 7825
4084 7829 4082 7830 4076 7837 4085 7881
TIME...MOT...LOC 1440Z 276DEG 30KT 4092 7880
ColbertSpecial Weather Statement
National Weather Service State College PA
1111 AM EDT Sat Jun 29 2019
PAZ005-006-291600-
McKean PA-Potter PA-
1111 AM EDT Sat Jun 29 2019
...A STRONG THUNDERSTORM WILL AFFECT PARTS OF MCKEAN AND POTTER
COUNTIES UNTIL NOON EDT...
At 1110 AM EDT, Doppler radar indicated a strong thunderstorm over
Coryville, moving east at 40 mph.
Wind gusts of up to 55 mph are possible.
Locations impacted include...
Coudersport, Port Allegany, Smethport, Roulette, Coryville, Eldred
and Sweden Valley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4183 7847 4191 7847 4198 7833 4186 7783
4161 7795
TIME...MOT...LOC 1510Z 290DEG 33KT 4187 7834
ColbertSpecial Weather Statement National Weather Service State College PA 1130 AM EDT Sat Jun 29 2019 PAZ017>019-291615- Northern Centre PA-Clearfield PA-Southern Centre PA- 1130 AM EDT Sat Jun 29 2019 ...A STRONG THUNDERSTORM WILL AFFECT PARTS OF CLEARFIELD AND CENTRE COUNTIES UNTIL 1215 PM EDT... At 1130 AM EDT, Doppler radar indicated a strong thunderstorm over Woodland, moving east at 30 mph. Wind gusts of up to 55 mph and nickel size hail are possible. Locations impacted include... Philipsburg, Woodland, Chester Hill, Snow Shoe, North Philipsburg, Clarence, Port Matilda, South Philipsburg, Moshannon, Julian, Black Moshannon State Park, Jeffries, Morrisdale, West Decatur, Grassflat, Kylertown and Wallaceton. PRECAUTIONARY/PREPAREDNESS ACTIONS... This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. Persons in campgrounds should consider seeking sturdy shelter until this storm passes. && LAT...LON 4092 7846 4103 7841 4105 7790 4078 7796 TIME...MOT...LOC 1530Z 279DEG 27KT 4096 7832 Colbert
The State College radar (KCCX), 23 km away, was scanning. The volume nearest the first event began at 15:40 UTC.
30 thunderstorm wind, 1 hail. Local standard time, as filed.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees in West Decatur.
A severe thunderstorm producing winds estimated near 60 mph knocked down two trees near Rockview Prison.
A severe thunderstorm producing winds estimated near 60 mph knocked down numerous trees and wires northwest of Centre Hall.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in Reedsville.
A severe thunderstorm producing winds estimated near 60 mph knocked down numerous trees near Cassville.
A severe thunderstorm producing winds estimated near 60 mph knocked down more than a dozen trees, as well as multiple camping tents and a large party tent. 35 people were injured, although most were minor bumps and bruises, with 3 people being transported to a local hospital by ambulance.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees and wires in East Waterford.
A severe thunderstorm producing winds estimated near 60 mph knocked down numerous trees in Orbisonia.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in Newport.
A severe thunderstorm producing winds estimated near 60 mph knocked down numerous trees south of New Bloomfield.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in Tower City.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in New Oxford.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees on Water Street in Fairfield.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires near South Lebanon.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires near Cornwall.
A severe thunderstorm producing winds estimated near 60 mph knocked down several large trees near Fairfield.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in Manheim Township.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in East Cocalico Township.
A severe thunderstorm producing winds estimated near 60 mph knocked down numerous trees near Glen Union.
A severe thunderstorm producing winds estimated near 60 mph knocked down numerous trees in Williamsport.
A severe thunderstorm producing winds estimated near 60 mph knocked down numerous trees in Lock Haven.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple power poles near Mill Hall.
A severe thunderstorm producing winds estimated near 60 mph knocked down two trees onto buildings in Lock Haven.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in Shamokin Township.
A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires in Selinsgrove.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in Lower Augusta Township.
A severe thunderstorm producing winds estimated near 60 mph knocked down numerous trees near Dalmatia.
A severe thunderstorm producing winds estimated near 60 mph knocked down numerous trees near Tremont.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in Pine Grove Township.
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees and powerlines in Heidlelberg Township.
A thunderstorm produced penny-sized hail in Ephrata.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2019Every state in 2019This day in weather historyWarnings in Pennsylvania, June 2019
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: 837366, 838019, 838020, 838023, 838028, 837365, 838036, 838444, 838445, 838446, 838447, 838448, 838449, 838450, 838451, 838452, 838453, 838454, 838455, 838456, 838457, 838458, 838459, 838460, 838461, 838462, 838463, 838464, 838465, 838467, 838032.