Alert archive / West Virginia / Flash Flood Warnings in 2021
Flash Flood Warning 18, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this flash flood warning at Aug 4, 2021, 8:50 PM EDT for Marion County, Monongalia County, Preston County, West Virginia. It was in force for 115 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 4, 2021, 8:50 PM EDT (00:50 UTC)
- Expired
- Aug 4, 2021, 10:45 PM EDT
- In force
- 115 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Marion County, WV, Monongalia County, WV, Preston County, WV
The radar
The Pittsburgh radar (KPBZ), 116 km from the middle of the area, began a volume at 00:50 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 nearest sounding before it
Pittsburgh, PA (KPIT), launched 00:00Z, 0.8 hours before the alert went out and 102 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
- 191 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 1497 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -39 m²/s²
- 0-3 km storm-relative helicity
- -21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
692
WGUS51 KPBZ 050050
FFWPBZ
WVC049-061-077-050245-
/O.NEW.KPBZ.FF.W.0018.210805T0050Z-210805T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pittsburgh PA
850 PM EDT Wed Aug 4 2021
The National Weather Service in Pittsburgh has issued a
* Flash Flood Warning for...
Northwestern Preston County in northeastern West Virginia...
Marion County in northern West Virginia...
Eastern Monongalia County in northern West Virginia...
* Until 1045 PM EDT.
* At 850 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 0.5 and 1.5 inches of
rain have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
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, Westover, Mannington, Star City, Pleasant
Valley, Winfield, Barrackville, Monongah, Granville, Brookhaven,
Rivesville, Grant Town, Farmington, Worthington, Everettville,
Crown, Georgetown, Baxter and Booth.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3946 8045 3959 8017 3969 7995 3968 7989
3960 7978 3943 7998 3940 8002 3939 8008
3941 8011 3939 8020 3944 8028
FLASH FLOOD...RADAR INDICATED
$$
JL1 follow-up statement
520
WGUS71 KPBZ 050240
FFSPBZ
Flash Flood Statement
National Weather Service Pittsburgh PA
1040 PM EDT Wed Aug 4 2021
WVC049-061-077-050250-
/O.EXP.KPBZ.FF.W.0018.000000T0000Z-210805T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Marion WV-Monongalia WV-Preston WV-
1040 PM EDT Wed Aug 4 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 1045 PM EDT THIS EVENING FOR
NORTHWESTERN PRESTON, MARION AND EASTERN MONONGALIA COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 3946 8045 3959 8017 3969 7995 3968 7989
3960 7978 3943 7998 3940 8002 3939 8008
3941 8011 3939 8020 3944 8028
$$
RACKLEYThe office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 8:22 PM EDT | Special Weather Statement | PBZ | Monongalia | 23 min |
Nearby
Flash Flood Warnings in West Virginia, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.