Alert archive / West Virginia / Flash Flood Warnings in 2021
Flash Flood Warning 42, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this flash flood warning at Sep 1, 2021, 7:21 AM EDT for Fayette County, Greene County, Pennsylvania; 4 counties in West Virginia. It was in force for 6 hr. 10 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 1, 2021, 7:21 AM EDT (11:21 UTC)
- Expired
- Sep 1, 2021, 1:15 PM EDT
- In force
- 6 hr
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Fayette County, PA, Greene County, PA, Marion County, WV, Monongalia County, WV, Preston County, WV, Tucker County, WV
The radar
The Pittsburgh radar (KPBZ), 142 km from the middle of the area, began a volume at 11:21 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 1, 10:55 AM EDT | FLASH FLOOD | Rowlesburg, WV | PRESTON EMERGENCY MANAGER REPORTS SEVERAL AREA ROADS CLOSED DUE TO FLOODING IN THE ROWLESBURG AREA. |
| Sep 1, 10:56 AM EDT | FLASH FLOOD | Terra Alta, WV | ROUTE 7 / E STATE AVE BY THE TERRA ALTA PUBLIC LIBRARY IS FLOODED. WATER CLOSE TO BUSINESSES. |
| Sep 1, 12:22 PM EDT | FLASH FLOOD | 1 Nnw Auvil, WV | CHEAT VALLEY RUN AT BULL RUN ROAD FLOODED; IMPASSABLE |
| Sep 1, 12:25 PM EDT | FLASH FLOOD | 1 Ssw Hannahsville, WV | LICKING CREEK ROAD AT CHEAT VALLEY HWY FLOODED; IMPASSABLE |
| Sep 1, 12:30 PM EDT | FLASH FLOOD | Fellowsville, WV | REPORT OF CLOSED ROADWAYS AND FLOODED FARMLANDS AROUDN FELLOWSVILLE. |
| Sep 1, 12:32 PM EDT | FLASH FLOOD | Terra Alta, WV | REPORT OF FLOODED ROADWAYS AROUND TERRA ALTA. |
| Sep 1, 12:33 PM EDT | FLASH FLOOD | 2 Ssw Auvil, WV | MOUNTAINEER HWY IN PARSONS IMPASSABLE, WITH APPROX 3' TO 4' OF WATER COVERING ROAD. |
| Sep 1, 12:33 PM EDT | FLASH FLOOD | Tunnelton, WV | REPORT OF FLOODED ROADWAYS AND FARMLANDS. |
| Sep 1, 12:36 PM EDT | FLASH FLOOD | 6 Wsw Auvil, WV | QUIET DELL ROAD FLOODED AND CLOSED. |
| Sep 1, 1:15 PM EDT | FLASH FLOOD | Farmington, PA | FLOODING ALONG DEAD MAN RUN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 00:00Z, 11.4 hours before the alert went out and 126 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 43 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 816 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
521
WGUS51 KPBZ 011121
FFWPBZ
PAC051-059-WVC049-061-077-093-011715-
/O.NEW.KPBZ.FF.W.0042.210901T1121Z-210901T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pittsburgh PA
721 AM EDT Wed Sep 1 2021
The National Weather Service in Pittsburgh has issued a
* Flash Flood Warning for...
Southeastern Fayette County in southwestern Pennsylvania...
Southeastern Greene County in southwestern Pennsylvania...
Preston County in northeastern West Virginia...
Tucker County in northeastern West Virginia...
Southeastern Marion County in northern West Virginia...
Eastern Monongalia County in northern West Virginia...
* Until 115 PM EDT.
* At 721 AM EDT, Doppler radar indicated heavy rain across the
warned area. Up to 1 inch of rain has fallen. Flash flooding is
ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Morgantown, Fairmont, Uniontown, Westover, Kingwood, Star City,
Parsons, Terra Alta, Davis, Thomas, Rowlesburg, Pleasant Valley,
Winfield, Farmington, Barrackville, Point Marion, Monongah,
Granville, Newburg and Hendricks.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3943 8028 3996 7966 3986 7942 3979 7935
3972 7939 3972 7948 3919 7949 3920 7930
3909 7936 3907 7930 3900 7932 3898 7933
3897 7934 3904 7979 3904 7978 3913 7984
3924 7981 3930 7990 3944 7989 3939 8009
FLASH FLOOD...RADAR INDICATED
$$4 follow-up statements
284
WGUS71 KPBZ 011245
FFSPBZ
Flash Flood Statement
National Weather Service Pittsburgh PA
845 AM EDT Wed Sep 1 2021
PAC051-059-WVC049-061-077-093-011715-
/O.CON.KPBZ.FF.W.0042.000000T0000Z-210901T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fayette PA-Greene PA-Marion WV-Monongalia WV-Preston WV-Tucker WV-
845 AM EDT Wed Sep 1 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 PM EDT THIS
AFTERNOON FOR SOUTHEASTERN FAYETTE, SOUTHEASTERN GREENE, PRESTON,
TUCKER, SOUTHEASTERN MARION AND EASTERN MONONGALIA COUNTIES...
At 845 AM EDT, Doppler radar indicated heavy rain across the warned
area. Between 1.5 and 2 inches of rain have fallen. Additional
rainfall amounts of 1 to 3 inches are possible in the warned area.
Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Morgantown, Fairmont, Uniontown, Westover, Kingwood, Star City,
Parsons, Terra Alta, Davis, Thomas, Rowlesburg, Pleasant Valley,
Winfield, Farmington, Barrackville, Point Marion, Monongah,
Granville, Newburg and Hendricks.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3943 8028 3996 7966 3986 7942 3979 7935
3972 7939 3972 7948 3919 7949 3920 7930
3909 7936 3907 7930 3900 7932 3898 7933
3897 7934 3904 7979 3904 7978 3913 7984
3924 7981 3930 7990 3944 7989 3939 8009
FLASH FLOOD...RADAR INDICATED
$$
SH569
WGUS71 KPBZ 011457
FFSPBZ
Flash Flood Statement
National Weather Service Pittsburgh PA
1057 AM EDT Wed Sep 1 2021
PAC051-059-WVC049-061-077-093-011715-
/O.CON.KPBZ.FF.W.0042.000000T0000Z-210901T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fayette PA-Greene PA-Marion WV-Monongalia WV-Preston WV-Tucker WV-
1057 AM EDT Wed Sep 1 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 PM EDT THIS
AFTERNOON FOR SOUTHEASTERN FAYETTE, SOUTHEASTERN GREENE, PRESTON,
TUCKER, SOUTHEASTERN MARION AND EASTERN MONONGALIA COUNTIES...
At 1057 AM EDT, emergency management reported heavy rain in southern
portions of Preston County. Between 1.5 and 2.5 inches of rain have
fallen. Additional rainfall amounts of 1 to 2 inches are possible in
the warned area. Flash flooding is already occurring.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Emergency management reported.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Morgantown, Fairmont, Uniontown, Westover, Kingwood, Star City,
Parsons, Terra Alta, Davis, Thomas, Rowlesburg, Pleasant Valley,
Winfield, Farmington, Barrackville, Point Marion, Monongah,
Granville, Newburg and Hendricks.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 3943 8028 3996 7966 3986 7942 3979 7935
3972 7939 3972 7948 3919 7949 3920 7930
3909 7936 3907 7930 3900 7932 3898 7933
3897 7934 3904 7979 3904 7978 3913 7984
3924 7981 3930 7990 3944 7989 3939 8009
FLASH FLOOD...OBSERVED
$$
SH870
WGUS71 KPBZ 011620
FFSPBZ
Flash Flood Statement
National Weather Service Pittsburgh PA
1220 PM EDT Wed Sep 1 2021
PAC051-059-WVC049-061-077-093-011715-
/O.CON.KPBZ.FF.W.0042.000000T0000Z-210901T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fayette PA-Greene PA-Marion WV-Monongalia WV-Preston WV-Tucker WV-
1220 PM EDT Wed Sep 1 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 PM EDT THIS
AFTERNOON FOR SOUTHEASTERN FAYETTE, SOUTHEASTERN GREENE, PRESTON,
TUCKER, SOUTHEASTERN MARION AND EASTERN MONONGALIA COUNTIES...
At 1220 PM EDT, emergency management reported heavy rain across the
warned area. Between 2 and 2.5 inches of rain have fallen.
Additional rainfall amounts of 0.5 to 1 inch are possible in the
warned area. Flash flooding is already occurring.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Emergency management reported.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Morgantown, Fairmont, Uniontown, Westover, Kingwood, Star City,
Parsons, Terra Alta, Davis, Thomas, Rowlesburg, Pleasant Valley,
Winfield, Farmington, Barrackville, Point Marion, Monongah,
Granville, Newburg and Hendricks.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 3943 8028 3996 7966 3986 7942 3979 7935
3972 7939 3972 7948 3919 7949 3920 7930
3909 7936 3907 7930 3900 7932 3898 7933
3897 7934 3904 7979 3904 7978 3913 7984
3924 7981 3930 7990 3944 7989 3939 8009
FLASH FLOOD...OBSERVED
$$
SH630
WGUS71 KPBZ 011716
FFSPBZ
Flash Flood Statement
National Weather Service Pittsburgh PA
116 PM EDT Wed Sep 1 2021
PAC051-059-WVC049-061-077-093-011726-
/O.EXP.KPBZ.FF.W.0042.000000T0000Z-210901T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fayette PA-Greene PA-Marion WV-Monongalia WV-Preston WV-Tucker WV-
116 PM EDT Wed Sep 1 2021
...FLASH FLOOD WARNING HAS EXPIRED FOR SOUTHEASTERN FAYETTE,
SOUTHEASTERN GREENE, PRESTON, TUCKER, SOUTHEASTERN MARION AND
EASTERN MONONGALIA COUNTIES...
The flash flood warning has been replaced by a base flood warning.
LAT...LON 3943 8028 3996 7966 3986 7942 3979 7935
3972 7939 3972 7948 3919 7949 3920 7930
3909 7936 3907 7930 3900 7932 3898 7933
3897 7934 3904 7979 3904 7978 3913 7984
3924 7981 3930 7990 3944 7989 3939 8009
$$The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 5:05 AM EDT | Areal Flood Advisory | PBZ | Allegheny, Beaver, Fayette, Washington, Westmoreland | 104 min |
| Sep 1, 6:23 AM EDT | Flash Flood Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Indiana, Washington and 1 more | 5 hr |
| Sep 1, 7:16 AM EDT | Flash Flood Warning | PBZ | Armstrong, Indiana, Westmoreland | 6 hr |
| Sep 1, 7:50 AM EDT | Flash Flood Warning | PBZ | Washington | 3 hr |
| Sep 1, 9:27 AM EDT | Flash Flood Warning | PBZ | Allegheny, Armstrong, Fayette, Greene, Indiana, Washington and 1 more | 4 hr |
| Sep 1, 10:26 AM EDT | Areal Flood Advisory | PBZ | Washington | 109 min |
| Sep 1, 11:23 AM EDT | Areal Flood Advisory | PBZ | Allegheny, Armstrong, Beaver, Butler, Indiana, Washington and 1 more | 52 min |
| Sep 1, 11:30 AM EDT | River Flood Warning | PBZ | Indiana, Westmoreland | 16 hr |
| Sep 1, 11:30 AM EDT | River Flood Warning | PBZ | Fayette | 39 hr |
| Sep 1, 11:30 AM EDT | River Flood Warning | PBZ | Fayette, Washington, Westmoreland | 28 hr |
| Sep 1, 11:30 AM EDT | River Flood Warning | PBZ | Allegheny, Westmoreland | 40 hr |
| Sep 1, 11:30 AM EDT | River Flood Warning | PBZ | Allegheny, Washington, Westmoreland | 33 hr |
| Sep 1, 1:15 PM EDT | Areal Flood Warning | PBZ | Fayette | 2 hr |
| Sep 1, 1:16 PM EDT | Areal Flood Warning | PBZ | Indiana, Westmoreland | 2 hr |
| Sep 1, 1:24 PM EDT | Areal Flood Warning | PBZ | Fayette, Indiana, Westmoreland | 2 hr |
Nearby
Flash Flood Warnings in West Virginia, 2021Flash Flood Warnings in Pennsylvania, 2021Every flash 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.