Heavy rain and snow melt caused the Connoquenessing Creek to rise above flood stage of 10 feet. In addition, sharp rises on area creeks caused additional flood problems.
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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.
Heavy rain and snow melt caused the Connoquenessing Creek to rise above flood stage of 10 feet. In addition, sharp rises on area creeks caused additional flood problems.
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 Mar 14, 11:42 AM EST, 1 hour 18 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 1242 PM EDT SAT MAR 14 2015 .SYNOPSIS... SHOWERS WILL DIMINISH THIS AFTERNOON AS A COLD FRONT CROSSES THE REGION. && .NEAR TERM /THROUGH SUNDAY/... THE EARLY AFTERNOON UPDATED FEATURED A DROP OF THE AREAL FLOOD WATCH AS RAIN AREA HAS BEEN PUSHED EASTWARD AS SURFACE COLD FRONT IS PROGRESSING RAPIDLY ACROSS OHIO WITH DEEPENING UPPER LOW TO THE NORTH OF THE GREAT LAKES. PASSAGE OF THAT FRONT WILL DROP OVERNIGHT LOW TEMPS BACK TOWARD THE SEASONAL AVERAGES...COLD ENOUGH FOR SOME SNOW SHOWERS WITH THE RESIDUAL PRECIPITATION UNDER THE CROSSING MID LEVEL TROUGH AXIS. GIVEN THE LOW FORECAST INVERSION LEVELS...POPS WERE MAINTAINED IN THE CHANCE CATEGORY FOR SCATTERED ACTIVITY. && .SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY/... THAT UPPER TROUGH IS EXPECTED TO MAINTAIN SUFFICIENT SHALLOW CONVECTIVE POTENTIAL FOR SOME ISOLATED TO SCATTED RAIN AND SNOW SHOWERS EARLY SUNDAY AS IT DIGS EASTWARD. NONE OF THAT WILL BE SIGNIFICANT AND WILL BE SUPPRESSED VIA BUILDING HIGH PRESSURE AS THE DAY PROGRESSES. A QUICK MONDAY WARM UP UNDER SHORTWAVE RIDGING IS FORECAST TO BE RETARDED BY PASSAGE OF A REINFORCING COLD FRONT EARLY ON TUESDAY. CHANCE POPS WERE MAINTAINED FOR THAT FEATURE USING NAMDNG5 GRID GUIDANCE...AND HAVE PERSISTED WITH SUB AVERAGE TUESDAY HIGHS IN THE WAKE OF THE FRONT. && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... GENERALLY DRY AND SEASONABLY COOL WEATHER IS EXPECTED THROUGH THE WEEK WITH NORTHWEST...TO ZONAL FLOW OVER THE REGION WITH PERSISTANT EASTERN CANADIAN...NEW ENGLAND TROUGHING. POPS AND TEMPS WITH THE APPROACH OF A LATE WEEK LOW WERE HANDLED WITH A BLEND OF WPC GUIDANCE AND THE LATEST GFS TIMING GIVEN DIVERGENT MODEL SOLUTIONS. && .AVIATION /18Z SATURDAY THROUGH THURSDAY/... IMPROVEMENT IS EXPECTED DURING THE AFTERNOON AS DRIER AIR NOSES IN BEHIND THE COLD FRONT. EXPECT ALL PORTS TO GO TO AT LEAST MVFR CIGS AS THE RAIN ENDS. SURFACE WIND WILL SHIFT TO THE WEST- NORTHWEST LATE IN THE AFTERNOON AND INCREASE...WITH GUSTS OF 20 TO 25KTS. .OUTLOOK.../SATURDAY THROUGH WEDNESDAY/... RESTRICTIONS LIKELY THROUGH EARLY SUNDAY IN THE WAKE OF THE COLD FRONT. BRIEF RESTRICTIONS WILL BE POSSIBLE AGAIN WITH AN EARLY TUESDAY COLD FRONT. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && 15
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 1235 PM EDT SAT MAR 14 2015 MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029-031-073>076-WVZ001>004-012-021>023-041-151645- GARRETT-TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON- JEFFERSON OH-MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-MERCER-VENANGO- FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON PA-BEAVER-ALLEGHENY- ARMSTRONG-INDIANA-WASHINGTON-GREENE-WESTMORELAND-WESTMORELAND RIDGES- FAYETTE-FAYETTE RIDGES-HANCOCK-BROOKE-OHIO-MARSHALL-WETZEL-MARION- MONONGALIA-PRESTON-TUCKER- 1235 PM EDT SAT MAR 14 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...EAST CENTRAL OHIO...NORTHWEST PENNSYLVANIA...SOUTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA...NORTHERN WEST VIRGINIA AND NORTHERN PANHANDLE OF WEST VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
Official reported that Evergreen Mill Road and Renfrew Road were closed due to high water. In addition Rockdale road was reported flooded.
State official reported that several roads along the Connoquenessing Creek were closed due to high water. These roads include: Narrows Run Road at the intersection of Soap Run Road, Waterfront Street in North Sewickley, and Bessor Road in Old Furnace. Several homes were evacuated around the 100 block of Hartzell School Road and Dambach Lane.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2015Every state in 2015This day in weather historyWarnings in Pennsylvania, March 2015
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: 566008, 566015.