Heavy downpours caused flooding across portions of Fayette County Pennsylvania in the afternoon on August 9th. Several roads were closed.
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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 downpours caused flooding across portions of Fayette County Pennsylvania in the afternoon on August 9th. Several roads were closed.
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 Aug 9, 2:08 PM EST, 1 hour 57 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 308 PM EDT FRI AUG 9 2013 .SYNOPSIS... SHOWER AND THUNDERSTORM CHANCES WILL GRADUALLY DECLINE AS A COLD FRONT COMPLETES A SLIDE ACROSS THE REGION TONIGHT. && .NEAR TERM /THROUGH SATURDAY/... CDFNT WL CONT TO PROGRESS SWD ACRS THE UPR OH REGION THIS EVE...AND WL RMN THE FOCUS FOR FURTHER SHWR AND TSTM DVLPMNT. WARM MID LVLS ALNG AND S OF THE FRONT HAVE LTD THE INSTBY POTENTIAL...BUT WARM PCPN PROCESSES AND PWATS ARND 2.0 WL MAINTAIN THE POTENTIAL FOR LOCALIZED FLOODING TO THE SOUTH OF I 70 EARLY...ALTHOUGH THE BTR MSTR TRANSPORT AND CNVRGNC HAS SHIFTED EWD. OTHERWISE...POPS WERE DIMINISHED THROUGH THE EVE AS PER EXPECTED CDFNT PASSAGE. FOR SATURDAY...LAST TWO MDL RUNS OF NAM AND GFS HAVE FORECAST PCPN DVLPMNT ALNG SECONDARY...OR NR-850 MB BNDRY. HENCE...SLGT AFTN POPS WERE ADDED FOR AREAS SOUTH OF PIT. NR TERM TEMPS WERE FORECAST A CPL DEGREES UNDR THE AVGS USING A BLEND OF SREF AND MOSGUIDE BC NMBRS. && .SHORT TERM /SATURDAY NIGHT THROUGH MONDAY/... WEAK HIGH PRESSURE WILL BUILD AND DRY THE REGION THROUGH THE RMNDR OF THE WEEKEND. WHILE HUMIDITY VALUES WILL DROP...TEMPERATURES WILL REMAIN CLOSE TO SEASONAL AVGS. LATEST DETERMINISTIC TRENDS ARE OF A MORE AGGRESSIVE TROG/CDFNT ADVN ACRS THE GREAT LAKES ON MONDAY. CONFIDENCE IS SUFFICIENT IN THE SCENARIO FOR AN ADDITION OF CHC POPS TO A PREVIOUSLY DRY PROGNOSIS. && .LONG TERM /MONDAY NIGHT THROUGH FRIDAY/... BTR CHANCE FOR SHOWERS IN THE EXTENDED WILL BE TUESDAY AS A SECONDARY COLD FRONT CROSSES THE REGION. CHC POP...ALBEIT WITH HIGHER NMBRS...WERE CONTD FOR THAT SYSTEM. THEREAFTER...COOL HIGH PRES IS EXPECTED TO DOMINATE LATE WEEK WEATHER. && .AVIATION /19Z FRIDAY THROUGH WEDNESDAY/... MVFR TO OCNL IFR CONDS CONT AS MSTR SUPPLY AND SLOW MOVG FRONT MAINTAIN ST AND SHWR AREAS. EXP SHWRS TO SHIFT SWD THIS EVE AS THE FRONT SAGS SWD. COULD BE A TSTM BUT COVG TOO LOW FOR MENTION IN TAFS ATTM. CONDS SHOULD GRDLY IMPROVE TO VFR THIS EVE AS THE FNT SHIFTS S OF THE AREA PORTS. EXP MVFR TO IFR FG TO DVLP LT TNGT INTO SAT MRNG. SCT CU TO OCNLY BKN VFR CU EXPD SAT. OUTLOOK.../SATURDAY NIGHT THROUGH WEDNESDAY/... GENL VFR CONDS EXPD UNTIL A CDFNT BRINGS PSBL RESTRNS TUE. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && 15/07
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 308 PM EDT FRI AUG 9 2013 MDZ001-PAZ031-075-076-WVZ012-021>023-041-101915- GARRETT-GREENE-FAYETTE-FAYETTE RIDGES-WETZEL-MARION-MONONGALIA- PRESTON-TUCKER- 308 PM EDT FRI AUG 9 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...SOUTHWEST PENNSYLVANIA AND NORTHERN WEST VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. LOCALIZED FLOODING IS POSSIBLE THIS EVENING...ESPECIALLY IN AREAS THAT EXPERIENCE MULTIPLE SHOWERS OR THUNDERSTORMS. .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>050-057>059-068-069-PAZ007>009-013>016-020>023-029- 073-074-WVZ001>004-101915- 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-WESTMORELAND-WESTMORELAND RIDGES-HANCOCK-BROOKE- OHIO-MARSHALL- 308 PM EDT FRI AUG 9 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL OHIO...NORTHWEST PENNSYLVANIA...SOUTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA AND NORTHERN PANHANDLE OF WEST VIRGINIA. .DAY ONE...THIS AFTERNOON 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. 15
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
Local 911 center reported that Barton Hollow Road, Wharton Furnace Road and Elliotsville Road were closed due to flooding.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2013Every state in 2013This day in weather historyWarnings in Pennsylvania, August 2013
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: 475810.