Runoff from previous heavy rains casued Chartiers Creek and 10 Mile Creek to leave their banks and produce standing water on roadways in Washington 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.
Runoff from previous heavy rains casued Chartiers Creek and 10 Mile Creek to leave their banks and produce standing water on roadways in Washington county.
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 Apr 5, 4:38 AM EST, 2 hours 12 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 538 AM EDT TUE APR 5 2011 .SYNOPSIS... LINGERING RAIN SHOWERS WILL DIMINISH THIS MORNING...AS A COLD FRONT EXITS TO THE EAST. HIGH PRESSURE WILL PROVIDE DRY WEATHER THIS AFTERNOON INTO WEDNESDAY MORNING. A WARM FRONT WILL BRING A CHANCE OF SHOWERS FOR WEDNESDAY AFTERNOON. && .NEAR TERM /THROUGH TONIGHT/... A STRONG COLD FRONT HAS PUSHED EAST OF THE FORECAST AREA WITH COLDER TEMPERATURES FUNNELING INTO THE DISTRICT BEHIND THE FRONT. WITH MOISTURE STILL PRESENT AFTER THE FRONTAL PASSAGE...HAVE KEPT A CHANCE OF SHOWERS THIS MORNING...ENDING TODAY FROM THE WEST. HIGH TEMPERATURES TODAY WILL BE SIGNIFICANTLY COLDER THAN MONDAY...WITH HIGHS SOME 20 TO 30 DEGREES COLDER. COLDEST TEMPERATURES WILL OCCUR AROUND SUNRISE. PRECIPITATION WILL CONTINUE TO DECREASE DURING THE AFTERNOON. HIGH PRESSURE MOVING ACROSS THE DISTRICT TONIGHT WILL BRING DRY WEATHER AND BELOW NORMAL TEMPERATURES. THERE IS A SLIGHT CHANCE OF SNOW SHOWERS IN THE NORTH WITH AN APPROACHING COLD FRONT TOWARD DAYBREAK. && .SHORT TERM /WEDNESDAY THROUGH WEDNESDAY NIGHT/... A WARM FRONT MOVES THROUGH THE AREA WEDNESDAY MORNING. GIVEN THE TIME OF PASSAGE...A RAIN / SNOW MIX IS POSSIBLE FROM PITTSBURGH AND NORTH AND JUST A SLIGHT CHANCE OF PRECIPITATION SOUTH OF PITTSBURGH. HIGH TEMPERATURES BACK TO NEAR NORMAL. THE WARM FRONT WILL PUSH SLOWLY NORTH WEDNESDAY NIGHT REDUCING THE CHANCE OF SHOWERS. && .LONG TERM /THURSDAY THROUGH MONDAY/... BROAD UPPER RIDGE WILL REMAIN OVER THE EASTERN HALF OF THE U.S. WITH SEVERAL WAVES RIDING OVER TOP OF THE RIDGE DURING THE EXTENDED PERIOD. FRONTAL BOUNDARY AT THE SURFACE IS PROGGED TO REMAIN STRETCHED ACROSS THE FORECAST AREA FROM THURSDAY THROUGH THE WEEKEND. PERIODS OF SHOWERS AND SCATTERED THUNDERSTORMS CAN BE EXPECTED INTO EARLY NEXT WEEK. WENT WITH HPC TEMPERATURES WITH READINGS GENERALLY RANGING FROM 10 TO 20 DEGREES ABOVE NORMAL DURING THE EXTENDED PERIOD. && .AVIATION /10Z TUESDAY THROUGH SATURDAY/... A COLD FRONT HAS EXITED TO THE EAST...WITH RESIDUAL RAIN SHOWERS PERSISTING. MVFR WILL PREVAIL WITH THE SHOWERS THROUGH 13-15Z...WITH AREAS OF IFR IN THE HEAVIER ACTIVITY. MVFR CIGS WILL PERSIST THROUGH THIS MORNING ACROSS EASTERN OHIO...AND INTO THE AFTN FOR WV/PA PORTS. CIGS WILL BECOME BROKEN AND LIFT TO VFR BY LATE AFTN AS HIGH PRESSURE BRIEFLY BUILDS IN...WITH A PERIOD OF MAINLY CLEAR SKIES 02-08Z WEDNESDAY. W TO NW WINDS WILL INCREASE TO 15-20 KT WITH GUSTS TO 25-30 KT BY THIS AFTN...DECREASING DURING THE EVENING. WEAK LOW PRESSURE IS PROGGED TO CLIP THE AREA WEDNESDAY...BRINGING SCATTERED SHOWERS AND POSSIBLE RESTRICTIONS. ANOTHER WEAK WAVE WILL CLIP THE AREA WEDNESDAY NIGHT INTO THURSDAY WITH CHANCES OF SHOWERS AND RESTRICTIONS. A MORE POTENT SYSTEM IS PROJECTED TO AFFECT THE UPPER OHIO VALLEY FRIDAY/SATURDAY...WITH A GREATER COVERAGE OF PRECIP AND RESTRICTIONS. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 201 AM EDT TUE APR 5 2011 MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029-031-073>076-WVZ001>004-012-021>023-041-060615- 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- 201 AM EDT TUE APR 5 2011 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...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.
The national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
Emergency management reported 10 MILE CREEK out of its banks and flooding Little Creek Road.
Emergency management reported Chartiers Creek flooding portions of Jefferson Street and Dewey affecting 2 homes.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2011Every state in 2011This day in weather historyWarnings in Pennsylvania, April 2011
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: 295528, 295530.