Heavy rainfall led to three areas of flash flooding during the evening hours on Wednesday June 19th.
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.
Heavy rainfall led to three areas of flash flooding during the evening hours on Wednesday June 19th.
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 19, 2:56 PM EST, 3 hours earlier.
Area Forecast Discussion National Weather Service State College PA 356 PM EDT Wed Jun 19 2019 .SYNOPSIS... An unsettled and stormy weather pattern will continue through Thursday evening thanks to the close proximity of a slowly meandering front. Expect to see several more rounds of showers and some will contain heavy downpours that could dump localized rainfall amounts of 1 to 2 inches within just an hour or so. There will be a risk of strong to severe thunderstorms and flash flooding on Thursday as a potent areas of low pressure moves right over the state. a pleasant and dry weekend is in store. Temperatures will trend a little cooler than normal for Friday and Saturday in the wake of a cold front. A warm up starts next week. && .NEAR TERM /UNTIL 6 AM THURSDAY MORNING/... Quasi-stnry front stretched from near I-80 in Western PA to the Lower Susq Valley and Philly Metro Area this afternoon and marks the northern edge of the higher PWAT air and more robust sfc- based cape that was approaching 2000 j/kg at 18Z. Recently posted a Flash Flood Watch from 4 pm to Midnight tonight across all but the northern tier counties of the CWA. Increasing number of showers were developing within small holes in the otherwise bkn-ovc sky cover, and as a result of subtle terrain and weak boundary forcing. Latest several HRRR runs indicates upscale growth of the showers into small clusters of TSRA that will drift gradually NE across the region this afternoon and evening. PWATs range from about 1.25 inches across Northern PA, to between 1.5-1.75 inches along and south of the aforementioned front. Regional model hodographs and MBE vectors points toward new cell development on the South to SE flank of existing cells which will create the potential for training and localized very heavy rainfall. FFG over portions of Central PA is as low as ~1"/1hr and ~1.25"/3hrs, while most of the Southern Tier and Lower Susq Valley has FFG 1 hour values of 2-2.5 inches. Mean, basin-average QPF will be on the order of a few to several tenths of an inch this afternoon and evening, and some locations will receive less than one-tenth of an inch through 04Z Thursday. Adjusted hour temps and afternoon max temps upward by several deg F in some locations today. Will continue to carry high PoPs as everyone should get wet at some point this afternoon/evening. && .SHORT TERM /6 AM THURSDAY MORNING THROUGH 6 PM THURSDAY/... Showers will gradually decrease after sunset as forcing remains weak in the vicinity of the quasi-stnry front, but the convection may not dissipate completely. However, it will only be a brief break in the rain as a wave will move across the OH Valley tonight, and a dying MCS should enter the Western counties just before sunrise. The rain with this initial shot should be generally light to moderate (a few to several tenths at most). A distinct low center will develop and push into wrn PA in the morning hours. This low is sub-1000mb and anomalously strong for the beginning of Summer. It will push its southward trailing cold front through during the afternoon and early evening. The coincidence of the old west-east front, anomalously high PWATs, and this decent long- wave trough + sfc low moving thru around peak heating will generate thunderstorms. Some of them will produce very heavy rainfall, and severe wind gusts/hail with as increasing vertical shear and a veering/broad loop hodograph. An isolated tornado or two is possible as well due to the boundary/shear and low LCLs present - especially from the KUNV/KIPT vicinity SE to the Lower Susq Valley. The heavy rain will probably cause some flooding, but the flooding threat area is not highly certain at this point. We may need a flash flood watch for Thursday, but later shifts can take a closer look. It's a little far out to post a watch just yet. The potent sfc low pressure center (~995 mb) should be over NE PA by nightfall, and the cold front dragging down thru MDT. Wrap around could make some sct SHRA over the W Thurs night, but it will be drying out and getting a little gusty by Fri morning. && .LONG TERM /THURSDAY NIGHT THROUGH WEDNESDAY/... Breezy and drier/less humid conditions will arrive Thursday night through Friday on the backside of the departing system. Expect a break from the rain for 2-3 days with pleasant conditions through the weekend before a surge in humidity returns showers and storms to the forecast next week. && .AVIATION /20Z WEDNESDAY THROUGH MONDAY/... Conditions varying between MVFR to VFR will continue into early tonight thanks to increasing coverage of NE moving showers an scattered TSRA. Went with just VCSH at this point as the prevailing conditions, but with a tempo group in the 19-23Z period for brief IFR conditions in 2SM +TSRA. Convection will wind down in the muggy/low shear environment later this evening, and any breaks in the cloud cover will lead to areas of fog/low stratus clouds similar to early this Wednesday morning. .Outlook... Thu...Rain/low cigs possible north. Scattered-numerous PM tsra impacts likely Central and Southern PA. Fri...AM low cigs possible W Mtns. Sat-Sun...No sig wx expected. && .CLIMATE... Astronomical summer (solstice) begins Friday, June 21st at 1154AM EDT (1554 UTC). && .CTP WATCHES/WARNINGS/ADVISORIES... Flash Flood Watch until midnight EDT tonight for PAZ012- 017>019-024>028-033>036-041-042-045-046-049>053-056>059- 063>066. && SYNOPSIS...Lambert NEAR TERM...Lambert SHORT TERM...Lambert LONG TERM...Steinbugl AVIATION...Lambert CLIMATE...Steinbugl
Hazardous Weather Outlook National Weather Service State College PA 224 PM EDT Wed Jun 19 2019 PAZ012-017>019-024>028-033>036-041-042-045-046-049>053-056>059- 063>066-201830- Northern Clinton-Clearfield-Northern Centre-Southern Centre-Cambria- Blair-Huntingdon-Mifflin-Juniata-Somerset-Bedford-Fulton-Franklin- Northern Lycoming-Sullivan-Southern Clinton-Southern Lycoming-Union- Snyder-Montour-Northumberland-Columbia-Perry-Dauphin-Schuylkill- Lebanon-Cumberland-Adams-York-Lancaster- 224 PM EDT Wed Jun 19 2019 ...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov/StateCollege on the internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Severe thunderstorms with damaging winds 60 mph or greater and large hail exceeding 1 inch in diameter are possible on Thursday. An isolated weak, short-lived tornado is also possible. Heavy rain is also expected from some of the storms. This could lead to flash flooding. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ004>006-010-011-037-201830- Warren-McKean-Potter-Elk-Cameron-Tioga- 224 PM EDT Wed Jun 19 2019 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...This afternoon and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Severe thunderstorms with damaging winds 60 mph or greater and large hail exceeding 1 inch in diameter are possible on Thursday. An isolated weak, short-lived tornado is also possible. Heavy rain is also expected from some of the storms. This could lead to flash flooding. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. Lambert
Special Weather Statement
National Weather Service State College PA
442 PM EDT Wed Jun 19 2019
PAZ065-066-192115-
York PA-Lancaster PA-
442 PM EDT Wed Jun 19 2019
...A STRONG THUNDERSTORM WILL AFFECT PARTS OF LANCASTER AND YORK
COUNTIES UNTIL 515 PM EDT...
At 441 PM EDT, Doppler radar indicated a strong thunderstorm over
Delta, moving east at 15 mph.
Very heavy rain and wind gusts 40 to 50 mph are possible.
Locations impacted include...
Delta, Wakefield, Sunnyburn, Susquehanna Trails, Little Britain and
Peach Bottom.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3981 7643 3983 7602 3982 7604 3981 7603
3980 7605 3979 7604 3976 7606 3976 7608
3973 7610 3974 7611 3972 7614 3972 7644
TIME...MOT...LOC 2041Z 275DEG 11KT 3972 7635
La CorteSpecial Weather Statement
National Weather Service State College PA
449 PM EDT Wed Jun 19 2019
PAZ045-046-049-192115-
Southern Lycoming PA-Southern Clinton PA-Union PA-
449 PM EDT Wed Jun 19 2019
...A STRONG THUNDERSTORM WILL AFFECT PARTS OF LYCOMING...UNION...AND
CLINTON COUNTIES UNTIL 515 PM EDT...
At 449 PM EDT, Doppler radar indicated a strong thunderstorm near
Carroll, moving east at 15 mph.
Very heavy rain and wind gusts 40 to 50 mph are possible.
Locations impacted include...
Williamsport, Jersey Shore, Carroll, Duboistown, McElhattan,
Collomsville, Elimsport, South Williamsport, Garden View and Oval.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4105 7691 4101 7718 4104 7714 4101 7727
4116 7735 4130 7703
TIME...MOT...LOC 2049Z 249DEG 12KT 4111 7722
La CorteThe State College radar (KCCX), 131 km away, was scanning. The volume nearest the first event began at 22:59 UTC.
4 flash flood. Local standard time, as filed.
Flash flooding was reported on 5th Street and Hollow Road and resulted in road closures.
School House Road was washed out near Buckhorn.
Several road closure due to flash flooding /4 to 6 rain reported on East Swatara Drive/ in Beverly Heights in Swatara Township. A water rescue was report at a residence surrounded by rushing water on Old Jonestown Road.
Heavy rains passed through multiple municipalities in Warren County causing road closures and other impacts. State Routes 6 and 27 are closed in various parts of the county. A vehicle slid into the ditch from the flood waters on State Route 27. The roadway also has a mudslide near Hickory Lane in Pittsfield Township. State Route 6 is closed in Youngstown Borough and is nearly impassable elsewhere in the county. Glade Water Rescue was dispatched for a water rescue on this road. A Command Post was set up at the Youngstown Fire Department. They were dispatched to rescue a group care home, on 29680 Route 6, that were unable to evacuate. The decision was made that it was safe enough for the residents stay in their home.
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: 826358, 826360, 826377, 826380.