An upper level impulse moving along a wavy frontal boundary produced scattered thunderstorms with very heavy rainfall the morning of the 3rd. Some roads were closed due to flash flooding in Beaver county, while radar estimated nearly 4 inches of rain fell in 2 hours northeast of Ligonier in Westmoreland county.
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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 PBZ wrote it up.
An upper level impulse moving along a wavy frontal boundary produced scattered thunderstorms with very heavy rainfall the morning of the 3rd. Some roads were closed due to flash flooding in Beaver county, while radar estimated nearly 4 inches of rain fell in 2 hours northeast of Ligonier in Westmoreland county. This produced flooding of roads, with one bridge washed out, as well as a water recuse from a home and a vehicle.
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 Pittsburgh, PA wrote its last area forecast discussion before the first event at Jun 3, 3:49 AM EST, 1 hour 26 minutes earlier.
Area Forecast Discussion...UPDATED National Weather Service Pittsburgh PA 449 AM EDT FRI JUN 3 2016 .SYNOPSIS... Slow moving cold front will keep in the risk for showers and storms through much of the day. Rain will return once again on Saturday as low pressure will keep most of the weekend wet. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... Showers and storms continue to fire along the quasi-stationary front. There appears to be just enough low-level instability to allow for a buoyant enough atmosphere which is conducive to sustaining the activity. The axis of the activity will move slowly southeastward throughout the day as the surface boundary continues to drift in the same direction. The problem is that the flow aloft remains zonal, and without a strong push in the upper levels, the front has little incentive to exit the area. Clouds will also decrease to the north of the boundary. && .SHORT TERM /6 PM THIS EVENING THROUGH SUNDAY/... Front finally clears the area this evening, which should allow for a break in the activity overnight. The entire weekend forecast remains problematic due to continued differences in operational model solutions. Today's front will return sometime on Saturday and bring showers and storms back into the area. The front will be pushed northward by a deepening surface low which will track across the midwest Saturday afternoon. The surface wave will reach Western Ohio late Saturday night and continue to track east-northeastward for the remainder of the weekend. Again model differences remain an issue, but the low's associated cold front will cross the area Sunday afternoon or evening. This will setup a rather wet second half of the weekend. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... A developing eastern trough and embedded shortwaves, which will swing through the large upper level system, will keep much of the long term unsettled with below normal temperatures. The superblend was used for the long term. && .AVIATION /09Z FRIDAY THROUGH TUESDAY/... A crossing cold front is expected to result in scattered showers, and MVFR to local IFR stratus and stratocu this morning. Conditions should gradually increase to VFR levels by this afternoon as mixing increases the ceilings height. VFR is expected to continue tonight as clouds increase with approaching low pressure. .OUTLOOK /SATURDAY THROUGH TUESDAY/... Restrictions are likely with weekend low pressure. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. &&
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE PITTSBURGH PA 453 AM EDT FRI JUN 3 2016 MDZ001-OHZ049-050-057>059-068-069-PAZ014-020>023-029-031-073>076- WVZ001>004-012-021-509>514-040900- GARRETT-HARRISON-JEFFERSON-MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE- BUTLER-BEAVER-ALLEGHENY-ARMSTRONG-INDIANA-WASHINGTON-GREENE- WESTMORELAND-WESTMORELAND RIDGES-FAYETTE-FAYETTE RIDGES-HANCOCK- BROOKE-OHIO-MARSHALL-WETZEL-MARION-MONONGALIA- RIDGES OF EASTERN MONONGALIA AND NORTHWESTERN PRESTON-PRESTON- EASTERN PRESTON-WESTERN TUCKER-EASTERN TUCKER- 453 AM EDT FRI JUN 3 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...EAST CENTRAL OHIO...SOUTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA...WESTERN PENNSYLVANIA...NORTHERN WEST VIRGINIA AND NORTHERN PANHANDLE OF WEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT. SLOW MOVING THUNDERSTORMS COULD PRODUCE HEAVY DOWNPOURS AND INCREASE THE RISK FOR LOCALIZED FLOODING TODAY. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. OHZ039>041-048-PAZ007>009-013-015-016-040900- TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-MERCER-VENANGO-FOREST- LAWRENCE-CLARION-JEFFERSON- 453 AM EDT FRI JUN 3 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL OHIO...NORTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA AND WESTERN PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
The Pittsburgh radar (KPBZ), 11 km away, was scanning. The volume nearest the first event began at 10:12 UTC.
3 flash flood. Local standard time, as filed.
An off duty NWS employee reported Chapel Road closed due to flash flooding.
The 911 Call Center reported roads closed due to flash flooding.
The 911 Call Center reported flash flooding northeast of Ligonier with multiple roads closed due to flash flooding. The water rescue team was deployed to help a woman evacuate a home surrounded by water in Ligonier, with a water rescue from a stranded car on SR 711. A bridge was also washed out on Clifford Woods Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2016Every state in 2016This day in weather historyWarnings in Pennsylvania, June 2016
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: 628178, 628181, 628182.