Pooling moisture along a stationary front over northeastern Pennsylvania resulted in the development of numerous, heavy rain producing thunderstorms. Water was reported crossing several roads in Bradford and Susquehanna counties leading to road closures and some flood damage.
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The episode as NWS BGM wrote it up.
Pooling moisture along a stationary front over northeastern Pennsylvania resulted in the development of numerous, heavy rain producing thunderstorms. Water was reported crossing several roads in Bradford and Susquehanna counties leading to road closures and some flood damage.
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 Binghamton, NY wrote its last area forecast discussion before the first event at Jun 18, 5:45 AM EST, 2 hours 50 minutes earlier.
AREA FORECAST DISCUSSION National Weather Service Binghamton NY 645 AM EDT Tue Jun 18 2019 .SYNOPSIS... A low over Ohio this morning will move east into Pennsylvania today bringing showers and a few thunderstorms to our area. Another stronger low will bring more showers and storms Thursday and Friday. && .NEAR TERM /THROUGH WEDNESDAY/... Yet another wave will move east along the ever present frontal boundary today and bring showers to the area. The wave is not particularly strong although there is a decent upper jet dynamic in place and very juicy air available over the mid Atlantic. Showers will spread east this morning, with the best chance along and south of the NY/PA border. Deep moisture is available over PA and enough instability for convection. Good news is that the individual elements should be fast movers limiting the heavy rain threat but back builders and training cells are possible over the extreme southern CWA. Heaviest cells should exit the south by around 21Z with just scattered instability showers lingering over the remainder of the forecast area. Rest of the near term will be unsettled with isolated showers.HEavier rain associated with the old front should remain south of the forecast area after today. && .SHORT TERM /WEDNESDAY NIGHT THROUGH THURSDAY NIGHT/... Another area of low pressure and a cold front will move into the region Thursday and Thursday night tapping into the moisture in place for more in the way of widespread showers in this period. PW values come up close to 2 inches once again. Instability also increases a bit leading to a deeper layer of moisture showing up in model soundings. With both of these things in mind, some heavy rainfall continues to be a concern. A model consensus focuses the timing of showers from the afternoon through the evening on Thursday. Uncertainty is still present with the track of the low pressure. A track similar to that of the 00z 6/18 NAM and ECMWF across central and northern NY would bring enough instability northward into NE PA and the Southern Tier where strong to severe thunderstorms would be another concern in the late afternoon and evening hours. The likely source of any strong to severe storms would be from a squall line which develops late in the afternoon and tracks across NE PA in the early evening. Gusty winds would be the main threat with any thunderstorms given modest modeled 0-6km bulk shear of around 40 knots from the surface low and 500-1000 J/KG CAPE. It should be noted with the track the 00z GFS has the any strong to severe thunderstorm threat would decrease. At this time this forecast update did not add any severe wording to the forecast given the uncertainty. Lows Wednesday and Thursday nights look to be around 60 with highs in the 70's on Thursday. && .LONG TERM /FRIDAY THROUGH MONDAY/... Some clouds and spotty showers may linger into Friday from the system departing the region Thursday night. However, after any lingering precipitation a welcomed break in the rain chances appears to be an increasing possibility. The majority of ensembles and operational continue to indicate a welcomed drier period for the region with mid-level ridging moving into our region. Associated with this ridge will be a high pressure system moving in from the Great Lakes. A frontal boundary looks to setup southwest of the region while high pressure builds southeast into New England which would keep any rain chances west of the region through Sunday. Skies currently look to be mostly sunny this weekend. Highs should end up in the 70's with nighttime lows in the 50's. However, by Monday another frontal system brings our next chance of showers and perhaps a few thunderstorms depending on instability. Temperatures will likely warm a bit from the weekend. Looking at next week, more in the way of summerlike weather may end being in the cards as a predominately +PNA becomes negative. As a result, the mean trough with cooler air masses likely shifts into the west and ridging develops over the eastern United States. The latest 8-14 day outlook from the CPC gives higher chances for above normal temperatures and near normal precipitation. This could be a significant reversal from the cool wet pattern of the last 6 weeks or so. && .AVIATION /12Z TUESDAY THROUGH SATURDAY/... Short wave is lifting showers back into the region his morning, bringing MVFR and IFR conditions. Exception will be at SYR and RME, north of the rain shield and which should remain VFR through the period. Wave moves on by mid morning allowing a slow improvement and a return to VFR conditions for the southern stations. Tonight, abundant moisture and light winds will return MVFR ceilings to the region. Weak flow will allow light and variable winds at all sites throughout this TAF period. Outlook... Wednesday through Thursday...Periods of occasional lowered flight categories likely, with the possibility of SHRA/TSRA. The greatest coverage will likely occur Thursday. Friday and Saturday...VFR conditions likely as high pressure builds in. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && SYNOPSIS...DGM NEAR TERM...BJT/DGM/DJN SHORT TERM...MWG LONG TERM...MWG AVIATION...BJG/DGM
Hazardous Weather Outlook National Weather Service Binghamton NY 824 AM EDT Tue Jun 18 2019 NYZ009-015>018-022>025-036-037-044>046-055>057-062-191230- Northern Oneida-Yates-Seneca-Southern Cayuga-Onondaga-Steuben- Schuyler-Chemung-Tompkins-Madison-Southern Oneida-Cortland-Chenango- Otsego-Tioga-Broome-Delaware-Sullivan- 824 AM EDT Tue Jun 18 2019 This Hazardous Weather Outlook is for central New York. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ038>040-043-044-047-048-072-191230- Bradford-Susquehanna-Northern Wayne-Wyoming-Lackawanna-Luzerne-Pike- Southern Wayne- 824 AM EDT Tue Jun 18 2019 ...FLASH FLOOD WATCH IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... This Hazardous Weather Outlook is for northeast Pennsylvania. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. A low pressure system is expected to bring showers and thunderstorms to the region Thursday and Thursday night. Some of the thunderstorms may produce heavy rainfall and gusty winds. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
818 AM EDT TUE JUN 18 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0730 AM HEAVY RAIN TOWANDA 41.77N 76.45W
06/18/2019 M0.90 INCH BRADFORD PA CO-OP OBSERVER
RAIN SINCE 5:30 AM.
&&
BGMPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
924 AM EDT TUE JUN 18 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0915 AM FLOOD NEW ALBANY 41.60N 76.44W
06/18/2019 BRADFORD PA EMERGENCY MNGR
ROAD WASHOUTS.
&&
DJNPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
933 AM EDT TUE JUN 18 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0919 AM HEAVY RAIN 1 WSW WESTON 41.68N 76.52W
06/18/2019 M2.57 INCH BRADFORD PA MESONET
RAINFALL IN THE LAST 4 HR (2.24 INCHES IN 2 HR ENDING
AT 840 AM).
0925 AM HEAVY RAIN 2 NE CHERRYTOWN 41.70N 76.26W
06/18/2019 M2.92 INCH BRADFORD PA MESONET
RAINFALL OVER THE PAST 5 HR (2.12 INCHES IN 2 HR ENDING
830 AM)
0930 AM HEAVY RAIN WYALUSING 41.67N 76.26W
06/18/2019 M2.63 INCH BRADFORD PA MESONET
RAINFALL IN THE LAST 4 HR.
&&
JRKThe Binghamton radar (KBGM), 81 km away, was scanning. The volume nearest the first event began at 13:36 UTC.
7 flash flood. Local standard time, as filed.
Overton Road was closed due to flooding between Hatch Hill Rd., and Front St.
Whitecreek Road was impassable with 2 to 3 feet of flowing water across the roadway.
Portions of County Route 3006 were impassable along the White Creek. One foot of water was reported rushing across the road.
Route 106 was impassable due to high water. Interstate 81 southbound was down to one lane as a result of flooding.
Route 220 near New Albany was closed due to flooding.
Route 6 was reported closed between Laceyville and Wyalusing due to flooding and culvert washouts.
Route 187 was closed due to flooding and a culvert washout.
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: 828922, 828923, 828924, 828925, 828926, 828927, 828928.