Alert archive / Pennsylvania / River Flood Warnings in 2021

River Flood Warning 11, NWS Pittsburgh, PA

September 1, 2021Fayette County, Pennsylvania

NWS Pittsburgh, PA issued this river flood warning at Sep 1, 2021, 11:30 AM EDT for Fayette County, Pennsylvania. It took effect at Sep 1, 2021, 9:40 PM EDT. It was in force for 29 hr.

The area

The outline as issued.

The facts

Issued
Sep 1, 2021, 11:30 AM EDT (15:30 UTC)
In effect from
Sep 1, 2021, 9:40 PM EDT
Expired
Sep 3, 2021, 2:30 AM EDT
In force
29 hr
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon
Flood severity
Minor

County Fayette County, PA

The radar

The Pittsburgh radar (KPBZ), 78 km from the middle of the area, began a volume at 15:30 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point Youghiogheny River at Connellsville (CLLP1). The gauge peaked at 9.92 ft at Sep 2, 2021, 2:00 AM EDT.

actionminormoderate5101509/0109/0209/0309/04
Action stage
9 ft
Minor stage
12 ft
Moderate stage
16 ft
Major stage
18 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 03082500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

219 
WGUS41 KPBZ 011530
FLWPBZ

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Pittsburgh PA
1130 AM EDT Wed Sep 1 2021

...The National Weather Service in Pittsburgh PA has issued a Flood 
Warning for the following rivers in Pennsylvania...

  Monongahela River Near Charleroi affecting Washington, Fayette 
  and Westmoreland Counties.

  Monongahela River Near Elizabeth affecting Allegheny, Washington 
  and Westmoreland Counties.

  Conemaugh River At Seward affecting Indiana and Westmoreland 
  Counties.

  Youghiogheny River At Connellsville affecting Fayette County.

  Youghiogheny River At Sutersville affecting Allegheny and 
  Westmoreland Counties.

.Heavy rainfall associated with the passage of the remnants of 
tropical system Ida will cause these locations to rise above flood 
stage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

Additional information is available at weather.gov/pbz.


PAC063-129-020330-
/O.NEW.KPBZ.FL.W.0010.210901T1738Z-210903T0420Z/
/SWDP1.3.ER.210901T1738Z.210902T0600Z.210902T2220Z.NO/
1130 AM EDT Wed Sep 1 2021

The National Weather Service in Pittsburgh has issued a

* Flood Warning for
  the Conemaugh River At Seward.
* Until early Friday morning.
* At 10:45 AM EDT Wednesday the stage was 8.8 feet.
* Flood stage is 12.0 feet.
* Major flooding is forecast.
* Forecast...The river is expected to rise above flood stage this 
  afternoon to a crest of 20.1 feet just after midnight tonight. It 
  will then fall below flood stage tomorrow evening.
* Impact...At 9.9 feet, Water reaches the level reached on March 5, 
  2015.
* Impact...At 12.0 feet, Route 56 below Power Plant Road is flooded. 
* Impact...At 12.1 feet, Water reaches the level reached during 
  Hurricane Ivan September 18, 2004.
* Impact...At 20.7 feet, Water reaches floor level in trailers just 
  downstream from Route 56 bridge over Conemaugh River.


&&

LAT...LON 4040 7896 4040 7905 4043 7904 4044 7898

$$

PAC051-020330-
/O.NEW.KPBZ.FL.W.0011.210902T0140Z-210903T0630Z/
/CLLP1.1.ER.210902T0140Z.210902T1200Z.210903T0030Z.NO/
1130 AM EDT Wed Sep 1 2021

The National Weather Service in Pittsburgh has issued a

* Flood Warning for
  the Youghiogheny River At Connellsville.
* From this evening to early Friday morning.
* At 10:15 AM EDT Wednesday the stage was 3.3 feet.
* Flood stage is 12.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  this evening to a crest of 15.8 feet tomorrow morning. It will 
  then fall below flood stage tomorrow evening.
* Impact...At 12.0 feet, Flooding begins in the vicinity of Yough 
  Park.
* Impact...At 14.0 feet, Several inches of water floods basements of 
  about 30 homes along left bank. River is bankful along the left 
  bank just downstream from the Crawford Street Bridge. Water 
  reaches the level of the Hurricane Ivan flood of September 18, 
  2004.
* Impact...At 14.1 feet, Water reaches level of March 3, 2015.
* Impact...At 16.0 feet, About 100 homes on the west side of 
  Connellsville flood in the areas of Fifth, Sixth and Seventh 
  Streets.
* Impact...At 17.0 feet, Water reaches homes in the towns Adelaide 
  and Dawson, downstream of Connelsville.


&&

LAT...LON 3998 7961 4005 7963 4005 7959 3999 7957

$$

PAC051-125-129-020330-
/O.NEW.KPBZ.FL.W.0012.210902T0534Z-210902T1950Z/
/CHRP1.1.ER.210902T0534Z.210902T1200Z.210902T1349Z.NO/
1130 AM EDT Wed Sep 1 2021

The National Weather Service in Pittsburgh has issued a

* Flood Warning for
  the Monongahela River Near Charleroi.
* From late tonight to tomorrow afternoon.
* At 10:00 AM EDT Wednesday the stage was 12.6 feet.
* Flood stage is 28.0 feet.
* Minor flooding is forecast.
* Forecast...The river will rise above flood stage just after 
  midnight tonight to 28.7 feet tomorrow morning. It will then fall 
  below flood stage late tomorrow morning to 13.6 feet and begin 
  rising again early Sunday afternoon. It will rise to 13.7 feet 
  early Monday morning. It will then fall again and remain below 
  flood stage.


&&

LAT...LON 4011 7990 4016 7993 4019 7987 4016 7984
      4015 7987 4014 7987

$$

PAC003-129-020330-
/O.NEW.KPBZ.FL.W.0013.210902T1032Z-210903T0708Z/
/STSP1.2.ER.210902T1032Z.210902T1800Z.210903T0107Z.NO/
1130 AM EDT Wed Sep 1 2021

The National Weather Service in Pittsburgh has issued a

* Flood Warning for
  the Youghiogheny River At Sutersville.
* From Thursday morning to early Friday morning.
* At 10:15 AM EDT Wednesday the stage was 7.3 feet.
* Flood stage is 20.0 feet.
* Moderate flooding is forecast.
* Forecast...The river is expected to rise above flood stage 
  tomorrow morning to a crest of 22.5 feet early tomorrow afternoon. 
  It will then fall below flood stage late tomorrow evening.
* Impact...At 20.0 feet, Residential basement flooding in 
  Sutersville begins in homes along the right bank. Flooding also 
  begins in the West Newton business district 5 miles upstream.
* Impact...At 20.7 feet, Flood reaches the level reached on March 5, 
  2015.
* Impact...At 20.7 feet, Water reaches the level reached during 
  Hurricane Ivan September 18, 2004.
* Impact...At 23.0 feet, Floodwaters reach the railroad tracks on 
  the left bank.


&&

LAT...LON 4021 7980 4026 7984 4027 7976 4023 7974

$$

PAC003-125-129-020330-
/O.NEW.KPBZ.FL.W.0014.210902T1200Z-210903T0000Z/
/ELZP1.1.ER.210902T1200Z.210902T1200Z.210902T1800Z.NO/
1130 AM EDT Wed Sep 1 2021

The National Weather Service in Pittsburgh has issued a

* Flood Warning for
  the Monongahela River Near Elizabeth.
* From Thursday morning to tomorrow evening.
* At 10:15 AM EDT Wednesday the stage was 12.4 feet.
* Flood stage is 20.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage 
  tomorrow morning to a crest of 20.0 feet tomorrow morning. It will 
  then fall below flood stage early tomorrow afternoon.


&&

LAT...LON 4026 7994 4032 7988 4029 7984 4025 7990

$$
2 follow-up statements
167 
WGUS81 KPBZ 012025
FLSPBZ

Flood Statement
National Weather Service Pittsburgh PA
425 PM EDT Wed Sep 1 2021

...The Flood Warning continues for the following rivers in 
Pennsylvania...

  Monongahela River Near Charleroi affecting Washington, Fayette 
  and Westmoreland Counties.

  Monongahela River Near Elizabeth affecting Allegheny, Washington 
  and Westmoreland Counties.

  Conemaugh River At Seward affecting Indiana and Westmoreland 
  Counties.

  Youghiogheny River At Connellsville affecting Fayette County.

  Youghiogheny River At Sutersville affecting Allegheny and 
  Westmoreland Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

Additional information is available at weather.gov/pbz.


PAC063-129-020900-
/O.CON.KPBZ.FL.W.0010.000000T0000Z-210903T0420Z/
/SWDP1.3.ER.210901T1941Z.210902T0600Z.210902T2220Z.NO/
425 PM EDT Wed Sep 1 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Conemaugh River At Seward.
* Until early Friday morning.
* At 3:45 PM EDT Wednesday the stage was 12.1 feet.
* Flood stage is 12.0 feet.
* Minor flooding is occurring and major flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 3:45 PM EDT Wednesday was 12.1 feet.
* Forecast...The river is expected to rise to a crest of 18.0 feet 
  just after midnight tonight. It will then fall below flood stage 
  tomorrow evening.
* Impact...At 9.9 feet, Water reaches the level reached on March 5, 
  2015.
* Impact...At 12.0 feet, Route 56 below Power Plant Road is flooded. 
* Impact...At 12.1 feet, Water reaches the level reached during 
  Hurricane Ivan September 18, 2004.
* Flood History...No available flood history.


&&

LAT...LON 4040 7896 4040 7905 4043 7904 4044 7898

$$

PAC051-020900-
/O.CON.KPBZ.FL.W.0011.210902T0140Z-210903T0630Z/
/CLLP1.1.ER.210902T0345Z.210902T1200Z.210902T2226Z.NO/
425 PM EDT Wed Sep 1 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Youghiogheny River At Connellsville.
* From this evening to early Friday morning.
* At 3:15 PM EDT Wednesday the stage was 5.3 feet.
* Flood stage is 12.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  this evening to a crest of 14.8 feet tomorrow morning. It will 
  then fall below flood stage tomorrow evening.
* Impact...At 12.0 feet, Flooding begins in the vicinity of Yough 
  Park.
* Impact...At 14.0 feet, Several inches of water floods basements of 
  about 30 homes along left bank. River is bankful along the left 
  bank just downstream from the Crawford Street Bridge. Water 
  reaches the level of the Hurricane Ivan flood of September 18, 
  2004.
* Impact...At 14.1 feet, Water reaches level of March 3, 2015.
* Impact...At 16.0 feet, About 100 homes on the west side of 
  Connellsville flood in the areas of Fifth, Sixth and Seventh 
  Streets.
* Flood History...This crest compares to a previous crest of 14.5 
  feet on 09/10/2018.


&&

LAT...LON 3998 7961 4005 7963 4005 7959 3999 7957

$$

PAC051-125-129-020900-
/O.CON.KPBZ.FL.W.0012.210902T0534Z-210902T1950Z/
/CHRP1.1.ER.210902T0931Z.210902T1200Z.210902T1437Z.NO/
425 PM EDT Wed Sep 1 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Monongahela River Near Charleroi.
* From late tonight to tomorrow afternoon.
* At 3:00 PM EDT Wednesday the stage was 15.5 feet.
* Flood stage is 28.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  tonight to a crest of 28.7 feet tomorrow morning. It will then 
  fall below flood stage late tomorrow morning.
* Flood History...No available flood history.


&&

LAT...LON 4011 7990 4016 7993 4019 7987 4016 7984
      4015 7987 4014 7987

$$

PAC003-129-020900-
/O.CON.KPBZ.FL.W.0013.210902T1032Z-210903T0708Z/
/STSP1.2.ER.210902T1342Z.210902T1800Z.210902T2200Z.NO/
425 PM EDT Wed Sep 1 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Youghiogheny River At Sutersville.
* From Thursday morning to early Friday morning.
* At 3:15 PM EDT Wednesday the stage was 8.0 feet.
* Flood stage is 20.0 feet.
* Moderate flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  tomorrow morning to a crest of 21.0 feet early tomorrow afternoon. 
  It will then fall below flood stage tomorrow evening.
* Impact...At 20.0 feet, Residential basement flooding in 
  Sutersville begins in homes along the right bank. Flooding also 
  begins in the West Newton business district 5 miles upstream.
* Impact...At 20.7 feet, Flood reaches the level reached on March 5, 
  2015.
* Impact...At 20.7 feet, Water reaches the level reached during 
  Hurricane Ivan September 18, 2004.
* Impact...At 23.0 feet, Floodwaters reach the railroad tracks on 
  the left bank.
* Flood History...This crest compares to a previous crest of 22.8 
  feet on 02/17/2018.


&&

LAT...LON 4021 7980 4026 7984 4027 7976 4023 7974

$$

PAC003-125-129-020900-
/O.CON.KPBZ.FL.W.0014.210902T1200Z-210903T0000Z/
/ELZP1.1.ER.210902T1800Z.210902T1800Z.210902T1800Z.NO/
425 PM EDT Wed Sep 1 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Monongahela River Near Elizabeth.
* From Thursday morning to tomorrow evening.
* At 3:15 PM EDT Wednesday the stage was 13.2 feet.
* Flood stage is 20.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 20.0 feet 
  early tomorrow afternoon.
* Flood History...This crest compares to a previous crest of 20.1 
  feet on 12/18/2019.


&&

LAT...LON 4026 7994 4032 7988 4029 7984 4025 7990

$$
541 
WGUS81 KPBZ 020141
FLSPBZ

Flood Statement
National Weather Service Pittsburgh PA
941 PM EDT Wed Sep 1 2021

...The Flood Warning is cancelled for the following rivers in 
Pennsylvania...

  Monongahela River Near Charleroi affecting Washington, Fayette 
  and Westmoreland Counties.

  Monongahela River Near Elizabeth affecting Allegheny, Washington 
  and Westmoreland Counties.

  Youghiogheny River At Connellsville affecting Fayette County.

  Youghiogheny River At Sutersville affecting Allegheny and 
  Westmoreland Counties.

PAC051-020245-
/O.CAN.KPBZ.FL.W.0011.000000T0000Z-210902T0141Z/
/CLLP1.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
941 PM EDT Wed Sep 1 2021

...The Flood Warning for the Youghiogheny River At Connellsville has 
been cancelled...

The Flood Warning is cancelled for
  the Youghiogheny River At Connellsville.
* At 9:15 PM EDT Wednesday the stage was 8.2 feet.
* Flood stage is 12.0 feet.
* Forecast...The river is expected to rise to a crest of 10.7 feet 
  tomorrow morning.


&&

LAT...LON 3998 7961 4005 7963 4005 7959 3999 7957

$$

PAC051-125-129-020245-
/O.CAN.KPBZ.FL.W.0012.210902T0534Z-210902T0141Z/
/CHRP1.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
941 PM EDT Wed Sep 1 2021

...The Flood Warning for the Monongahela River Near Charleroi has 
been cancelled...

The Flood Warning is cancelled for
  the Monongahela River Near Charleroi.
* At 9:00 PM EDT Wednesday the stage was 18.9 feet.
* Flood stage is 28.0 feet.
* Forecast...The river will oscillate below flood stage with a 
  maximum value of 23.1 feet just after midnight tonight.


&&

LAT...LON 4011 7990 4016 7993 4019 7987 4016 7984
      4015 7987 4014 7987

$$

PAC003-129-020245-
/O.CAN.KPBZ.FL.W.0013.210902T1032Z-210902T0141Z/
/STSP1.2.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
941 PM EDT Wed Sep 1 2021

...The Flood Warning for the Youghiogheny River At Sutersville has 
been cancelled...

The Flood Warning is cancelled for
  the Youghiogheny River At Sutersville.
* At 9:15 PM EDT Wednesday the stage was 8.9 feet.
* Flood stage is 20.0 feet.
* Forecast...The river is expected to rise to a crest of 16.0 feet 
  early tomorrow afternoon.


&&

LAT...LON 4021 7980 4026 7984 4027 7976 4023 7974

$$

PAC003-125-129-020245-
/O.CAN.KPBZ.FL.W.0014.210902T1200Z-210902T0141Z/
/ELZP1.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
941 PM EDT Wed Sep 1 2021

...The Flood Warning for the Monongahela River Near Elizabeth has 
been cancelled...

The Flood Warning is cancelled for
  the Monongahela River Near Elizabeth.
* At 9:15 PM EDT Wednesday the stage was 15.1 feet.
* Flood stage is 20.0 feet.
* Forecast...The river will oscillate below flood stage with a 
  maximum value of 16.7 feet tomorrow morning.


&&

LAT...LON 4026 7994 4032 7988 4029 7984 4025 7990

$$

What forecasters said that day

The local office's own words before this river flood warning went out, 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 this river flood warning went out at Sep 1, 10:43 AM EDT, 47 minutes earlier.

Area forecast discussion, Sep 1, 10:43 AM EDT, 47 minutes before
Area Forecast Discussion
National Weather Service Pittsburgh PA
1043 AM EDT Wed Sep 1 2021

.SYNOPSIS...
Cool and dry air will flow over the region later today as the remnant
of the tropical system exits.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
Latest update was for ewd shifting heavy rainfall and the dropping of
the FFA for part of E.C. OH and the nrn WV Panhandle. The trend will
continue as the upr trough axis and Ida remnant continue to dvlp the
moisture convergence areas east of the ridges. In the meantime, the
primary flood threat is east of the PA wrn border and generally east
of Pittsburgh. Expect an additional 0.5 to 1 inches in those areas.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH FRIDAY/...
Significantly cooler and drier air will filter in behind the remnant
as a rather amplified trough-ridge-trough longwave pattern develops
across the mid-latitudes of North America and strong high pressure
builds across the Great Lakes. This pattern will provide a dry and
comfortable end to the week.

&&

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
The longwave pattern is projected to dampen, with the Pittsburgh
forecast area placed in general WNW flow aloft. Expect dry and cool
weather with exception for a shortwave passage forecast for Sunday
afternoon.

&&

.AVIATION /15Z WEDNESDAY THROUGH SUNDAY/...
Rain associated with the tropical remnant Ida wl maintain
deteriorated MVFR to IFR conditions until upr trough passage heralds
improvement later this aftn and into the eve.

A sufficient pres gradient should result in increasing NE wind Wed.
Wind should diminish and back to the NW Wed night as the low exits.

.Outlook...
The next genl restriction chc wl come with the crossing of a late
Saturday disturbance.

&&

.PBZ WATCHES/WARNINGS/ADVISORIES...
PA...Flash Flood Watch through late tonight for PAZ021>023-029-031-
     073>076.
OH...None.
WV...Flash Flood Watch through late tonight for WVZ021-509>514.

&&
Hazardous weather outlook, Sep 1, 10:41 AM EDT, 49 minutes before
Hazardous Weather Outlook
National Weather Service Pittsburgh PA
1041 AM EDT Wed Sep 1 2021

PAZ021>023-029-031-073>076-WVZ021-509>514-021445-
Allegheny-Armstrong-Indiana-Washington-Greene-Westmoreland-
Higher Elevations of Westmoreland-Fayette-
Higher Elevations of Fayette-Marion-Monongalia-
Ridges of Eastern Monongalia and Northwestern Preston-Preston-
Eastern Preston-Western Tucker-Eastern Tucker-
1041 AM EDT Wed Sep 1 2021

...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT...

This Hazardous Weather Outlook is for southwest Pennsylvania,
western Pennsylvania and northern West Virginia.

.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...Thursday through Tuesday.

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.

OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020-WVZ001>004-
012-021445-
Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson OH-
Muskingum-Guernsey-Belmont-Noble-Monroe-Mercer-Venango-Forest-
Lawrence-Butler-Clarion-Jefferson PA-Beaver-Hancock-Brooke-Ohio-
Marshall-Wetzel-
1041 AM EDT Wed Sep 1 2021

This Hazardous Weather Outlook is for east central Ohio, western
Pennsylvania, and northern West Virginia.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

In the hours before

Local storm report, Sep 1, 10:30 AM EDT, 1 hour before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE PITTSBURGH PA
1030 AM EDT WED SEP 01 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0211 PM     FLASH FLOOD      1 WNW MAMONT            40.49N  79.60W
08/31/2021                   WESTMORELAND       PA   911 CALL CENTER

            FLOODED ROADWAY, GREENSBURG RD & RTE 66

0624 AM     FLASH FLOOD      1 NW MOUNT LEBANON      40.38N  80.06W
09/01/2021                   ALLEGHENY          PA   COUNTY OFFICIAL

            WATER INTO RESIDENCE ON SALEM DRIVE, WITH FLOODING ALSO
            ON BOWER HILL ROAD

0630 AM     FLASH FLOOD      ESSEN                   40.37N  80.09W
09/01/2021                   ALLEGHENY          PA   COUNTY OFFICIAL

            FLOODING ON SPRING VALLEY ROAD

0636 AM     FLASH FLOOD      1 E BRIDGEVILLE         40.36N  80.10W
09/01/2021                   ALLEGHENY          PA   FIRE DEPT/RESCUE

            FLOODING ON MCLAUGHLIN RUN ROAD - ROAD BEING CLOSED

0649 AM     FLASH FLOOD      PINEY FORK              40.29N  79.99W
09/01/2021                   ALLEGHENY          PA   BROADCAST MEDIA

            VIDEO ON SOCIAL MEDIA SHOWING PINEY FORK OUT OF ITS
            BANKS AND FLOWING ONTO PINEY FORK ROAD

0650 AM     FLASH FLOOD      MONTROSE HILL           40.50N  79.85W
09/01/2021                   ALLEGHENY          PA   FIRE DEPT/RESCUE

            FLOODING ON THE 800 BLOCK OF FREEPORT ROAD - ROAD IS
            CLOSED

0653 AM     FLASH FLOOD      CHERRY CITY             40.50N  79.96W
09/01/2021                   ALLEGHENY          PA   911 CALL CENTER

            FLOODING ON SEAVEY ROAD. SCHOOL BUS DISABLED ON THE
            ROAD.

0656 AM     FLASH FLOOD      1 W VENICE              40.32N  80.23W
09/01/2021                   WASHINGTON         PA   911 CALL CENTER

            CAR STUCK IN WATER UP TO HEADLIGHTS

0656 AM     FLASH FLOOD      LANGELOTH               40.37N  80.42W
09/01/2021                   WASHINGTON         PA   911 CALL CENTER

            FLOODING ON LANGELOTH ROAD

0703 AM     FLASH FLOOD      BRIDGEVILLE             40.36N  80.11W
09/01/2021                   ALLEGHENY          PA   911 CALL CENTER

            EVACUATIONS OCCURRING DUE TO FLOODING AT THE
            INTERSECTION OF BALDWIN STREET AND RAILROAD STREET.

0707 AM     FLASH FLOOD      WELLSBURG               40.28N  80.61W
09/01/2021                   BROOKE             WV   BROADCAST MEDIA

            FLOODING ON ROUTE 2

0720 AM     FLASH FLOOD      BAUERSTOWN              40.49N  79.97W
09/01/2021                   ALLEGHENY          PA   911 CALL CENTER

            FLOODING AT THE 1000 BLOCK OF EVERGEEN AVENUE, ROAD
            CLOSED

0726 AM     FLASH FLOOD      1 NW THOMPSONVILLE      40.29N  80.13W
09/01/2021                   WASHINGTON         PA   911 CALL CENTER

            REPORT OF A MALE TRAPPED IN A VEHICLE AT THE
            INTERSECTION OF HAHN DRIVE AND MAPLE LANE

0728 AM     FLASH FLOOD      MCCONNELLS MILLS        40.25N  80.24W
09/01/2021                   WASHINGTON         PA   911 CALL CENTER

            WESTERN AVENUE CLOSED BETWEEN MEEDINGS ROAD AND
            MCCONNELLS MILL ROAD DUE TO FLOODING

0735 AM     FLASH FLOOD      1 E STOWE TOWNSHIP      40.48N  80.06W
09/01/2021                   ALLEGHENY          PA   911 CALL CENTER

            SCHOOL BUS STUCK IN WATER AT THE INTERSECTION OF OHIO
            STREET AND CENTER STREET. 2 ADULTS AND 7 CHILDREN
            TRAPPED.

0751 AM     FLASH FLOOD      1 S BOYER               40.31N  80.03W
09/01/2021                   ALLEGHENY          PA   911 CALL CENTER

            LIBARY ROAD CLOSED BETWEEN KINDS SCHOOL ROAD AND
            CLIFTON ROAD DUE TO FLOODING. RAIL LINE IN AREA CLOSED.

0753 AM     FLASH FLOOD      WEST LIBRARY            40.29N  80.02W
09/01/2021                   ALLEGHENY          PA   911 CALL CENTER

            MULTIPLE HOUSES FLOODED ON CHURCH STREET

0810 AM     FLASH FLOOD      MILLVALE                40.49N  79.97W
09/01/2021                   ALLEGHENY          PA   SOCIAL MEDIA

            SOCIAL MEDIA VIDEO SHOWING GIRTYS RUN IN MILLVALE BY
            FREDERICK ST OVERFLOWING ONTO THE ROADS.. JUST SHY OF
            REACHING HOUSES.

0818 AM     FLASH FLOOD      INDIANA                 40.62N  79.16W
09/01/2021                   INDIANA            PA   EMERGENCY MNGR

            COUNTY OFFICIALS REPORT FLOODED ROADWAYS ACROSS INDIANA
            COUNTY... INCLUDING THE TOWN OF INDIANA

0827 AM     FLASH FLOOD      OAKDALE                 40.40N  80.19W
09/01/2021                   ALLEGHENY          PA   911 CALL CENTER

            MULTIPLE ROADS CLOSED DUE TO FLOODING

0830 AM     FLASH FLOOD      CONNORVILLE             40.19N  80.72W
09/01/2021                   JEFFERSON          OH   SOCIAL MEDIA

            SOCIAL MEDIA PHOTO SHOWING HIGH WATER A FEW FEET DEEP
            FLOWING ACROSS THE CONNORVILLE BYPASS

0836 AM     FLASH FLOOD      1 SE METCALF            40.61N  79.68W
09/01/2021                   WESTMORELAND       PA   911 CALL CENTER

            HULTON ROAD FLOODED

0836 AM     FLASH FLOOD      GREENSBURG              40.30N  79.54W
09/01/2021                   WESTMORELAND       PA   911 CALL CENTER

            FLOODED ROADS IN WASHINGTON TOWNSHIP INCLUDE NORTH
            WASHINGTON ROAD, PINE RUN ROAD, AND PINE RUN CHURCH ROAD

0841 AM     FLASH FLOOD      OAKDALE                 40.41N  80.19W
09/01/2021                   ALLEGHENY          PA   911 CALL CENTER

            ASSISTED LIVING FACILITY FLOODING AND BEING EVACUATED.
            24 PEOPLE IN THE BUILDING.

0845 AM     FLASH FLOOD      MORGAN                  40.36N  80.14W
09/01/2021                   ALLEGHENY          PA   911 CALL CENTER

            FLOODING ON BLYTE ROAD - RESIDENTS BEING EVACUATED

0855 AM     FLASH FLOOD      BAIRDSTOWN              40.43N  79.29W
09/01/2021                   WESTMORELAND       PA   911 CALL CENTER

            FLOODING AT THE BAIRDSTOWN ROAD EXIT TO ROUTE 22

0900 AM     FLASH FLOOD      WEST LIBERTY            40.17N  80.59W
09/01/2021                   OHIO               WV   911 CALL CENTER

            BRIDGE TO NORTH FORK LANDFILL CLOSED DUE TO FLOODING

0900 AM     FLASH FLOOD      OAKDALE                 40.40N  80.19W
09/01/2021                   ALLEGHENY          PA   NWS EMPLOYEE

            NOBLESTOWN ROAD FLOODED AND IMPASSABLE NEAR POLICE
            DEPT.

0910 AM     FLASH FLOOD      1 SW TUNNELTON          40.45N  79.40W
09/01/2021                   WESTMORELAND       PA   911 CALL CENTER

            FLOODING ON TUNNELTON ROAD

0911 AM     FLASH FLOOD      1 ENE BALDWIN           40.37N  79.94W
09/01/2021                   ALLEGHENY          PA   911 CALL CENTER

            SWIFT WATER TEAM RESPONDING TO STREETS RUN ROAD FOR
            VEHICLE STUCK IN WATER WITH ONE OCCUPANT

0929 AM     FLASH FLOOD      1 NW NORTH WASHINGTON   40.54N  79.61W
09/01/2021                   WESTMORELAND       PA   911 CALL CENTER

            WATER ON GOLDFINCH LANE IS APPROXIMATELY WAIST DEEP.
            ABOUT 12 MOBILE HOMES HAVE WATER TO THEIR FRONT PORCH,
            FOUR FAMILIES EVACUATED

0932 AM     FLASH FLOOD      1 NW CARBON             40.31N  79.58W
09/01/2021                   WESTMORELAND       PA   911 CALL CENTER

            NORTH GREENGATE ROAD - UNDERPASS FLOODED WITH FOUR FEET
            OF WATER. VEHICLE STUCK IN WATER, WITH ONE PERSON
            ESCAPING THROUGH THE VEHICLE WINDOW

0946 AM     FLASH FLOOD      2 N NORTH WASHINGTON    40.55N  79.60W
09/01/2021                   WESTMORELAND       PA   911 CALL CENTER

            YOCKEY ROAD FLOODED AND CLOSED NEAR PINE RUN ROAD

0950 AM     FLASH FLOOD      1 S NEW FLORENCE        40.37N  79.07W
09/01/2021                   WESTMORELAND       PA   911 CALL CENTER

            FLOODING AT THE INTERSECTION OF SHANNON CREEK ROAD AND
            MICHIGAN LANE

0950 AM     FLASH FLOOD      1 E GREENSBURG          40.31N  79.53W
09/01/2021                   WESTMORELAND       PA   911 CALL CENTER

            NEW ALEXANDRIA ROAD FLOODED

0950 AM     FLASH FLOOD      BOYDSVILLE              40.07N  80.77W
09/01/2021                   BELMONT            OH   SOCIAL MEDIA

            TWITTER VIDEO OF ROAD UNDER SEVERAL FEET OF WATER...
            LIKELY FROM NEARBY WHEELING CREEK.

0957 AM     FLASH FLOOD      OAKDALE                 40.40N  80.19W
09/01/2021                   ALLEGHENY          PA   911 CALL CENTER

            FLOODING IN OAKDALE BOROUGH. FIRE/POLICE STATIONS
            EVACUATED. APPROXIMATELY 18 INCHES OF WATER THROUGHOUT
            THE TOWN.

1015 AM     FLASH FLOOD      1 SE NEW FLORENCE       40.37N  79.07W
09/01/2021                   WESTMORELAND       PA   911 CALL CENTER

            FLOODING ON FURNACE LANE

&&

EVENT NUMBER PBZ2102297 PBZ2102298 PBZ2102299 PBZ2102300 PBZ2102326
PBZ2102302 PBZ2102303 PBZ2102305 PBZ2102307 PBZ2102304 PBZ2102315
PBZ2102309 PBZ2102310 PBZ2102308 PBZ2102311 PBZ2102313 PBZ2102312
PBZ2102329 PBZ2102318 PBZ2102319 PBZ2102325 PBZ2102320 PBZ2102323
PBZ2102321 PBZ2102322 PBZ2102328 PBZ2102331 PBZ2102334 PBZ2102327
PBZ2102330 PBZ2102333 PBZ2102332 PBZ2102335 PBZ2102336 PBZ2102337
PBZ2102338 PBZ2102339 PBZ2102340

CL
Local storm report, Sep 1, 10:35 AM EDT, 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1035 AM EDT WED SEP 01 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1013 AM     FLASH FLOOD      1 SE DELMONT            40.40N  79.56W
09/01/2021                   WESTMORELAND       PA   911 CALL CENTER

            FLOODING IN A BARN WITH LIVESTOCK ON BUSINESS ROUTE 66

&&

EVENT NUMBER PBZ2102341

CL
Local storm report, Sep 1, 10:38 AM EDT, 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1038 AM EDT WED SEP 01 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1027 AM     FLASH FLOOD      2 W OKLAHOMA            40.58N  79.61W
09/01/2021                   WESTMORELAND       PA   911 CALL CENTER

            FLOODING ON PARK ROAD. ROAD HAS BEEN CLOSED.

&&

EVENT NUMBER PBZ2102342

CL
Local storm report, Sep 1, 10:54 AM EDT, 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1054 AM EDT WED SEP 01 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1040 AM     FLASH FLOOD      1 NNW LLOYDSVILLE       40.33N  79.41W
09/01/2021                   WESTMORELAND       PA   911 CALL CENTER

            LATROBE CRABTREE ROAD FLOODED

1040 AM     FLASH FLOOD      PENN                    40.33N  79.64W
09/01/2021                   WESTMORELAND       PA   911 CALL CENTER

            SOUTH CARBON STREET FLOODED

1053 AM     FLASH FLOOD      MIDWAY                  40.26N  79.56W
09/01/2021                   WESTMORELAND       PA   911 CALL CENTER

            STATE ROUTE 119 FLOODED NEAR SHADY LANE

&&

EVENT NUMBER PBZ2102343
EVENT NUMBER PBZ2102344
EVENT NUMBER PBZ2102345

CL
Local storm report, Sep 1, 11:05 AM EDT, 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1105 AM EDT WED SEP 01 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1055 AM     FLASH FLOOD      ROWLESBURG              39.35N  79.68W
09/01/2021                   PRESTON            WV   EMERGENCY MNGR

            PRESTON EMERGENCY MANAGER REPORTS SEVERAL AREA ROADS
            CLOSED DUE TO FLOODING IN THE ROWLESBURG AREA.

&&

EVENT NUMBER PBZ2102346

CL
Local storm report, Sep 1, 11:23 AM EDT, 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1123 AM EDT WED SEP 01 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1123 AM     HEAVY RAIN       MONESSEN                40.15N  79.88W
09/01/2021  M3.04 INCH       WESTMORELAND       PA   TRAINED SPOTTER

            RAINFALL SINCE 2 AM.

&&

EVENT NUMBER PBZ2102347

15

The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 1, 5:05 AM EDTAreal Flood AdvisoryPBZAllegheny, Beaver, Fayette, Washington, Westmoreland104 min
Sep 1, 6:23 AM EDTFlash Flood WarningPBZAllegheny, Armstrong, Beaver, Butler, Indiana, Washington and 1 more5 hr
Sep 1, 7:16 AM EDTFlash Flood WarningPBZArmstrong, Indiana, Westmoreland6 hr
Sep 1, 7:21 AM EDTFlash Flood WarningPBZFayette, Greene6 hr
Sep 1, 7:50 AM EDTFlash Flood WarningPBZWashington3 hr
Sep 1, 9:27 AM EDTFlash Flood WarningPBZAllegheny, Armstrong, Fayette, Greene, Indiana, Washington and 1 more4 hr
Sep 1, 10:26 AM EDTAreal Flood AdvisoryPBZWashington109 min
Sep 1, 11:23 AM EDTAreal Flood AdvisoryPBZAllegheny, Armstrong, Beaver, Butler, Indiana, Washington and 1 more52 min
Sep 1, 11:30 AM EDTRiver Flood WarningPBZIndiana, Westmoreland16 hr
Sep 1, 11:30 AM EDTRiver Flood WarningPBZFayette, Washington, Westmoreland28 hr
Sep 1, 11:30 AM EDTRiver Flood WarningPBZAllegheny, Westmoreland40 hr
Sep 1, 11:30 AM EDTRiver Flood WarningPBZAllegheny, Washington, Westmoreland33 hr
Sep 1, 1:15 PM EDTAreal Flood WarningPBZFayette2 hr
Sep 1, 1:16 PM EDTAreal Flood WarningPBZIndiana, Westmoreland2 hr
Sep 1, 1:24 PM EDTAreal Flood WarningPBZFayette, Indiana, Westmoreland2 hr

Nearby

River Flood Warnings in Pennsylvania, 2021Every river flood warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.