Alert archive / Pennsylvania / Flash Flood Warnings in 2018
Flash Flood Warning 13, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this flash flood warning at Jun 8, 2018, 8:24 PM EDT for Westmoreland County, Pennsylvania. It was in force for 90 min. 2 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
- Jun 8, 2018, 8:24 PM EDT (00:24 UTC)
- Expired
- Jun 8, 2018, 9:54 PM EDT
- In force
- 90 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
- Flood severity
- None
County Westmoreland County, PA
The radar
The Pittsburgh radar (KPBZ), 53 km from the middle of the area, began a volume at 00:26 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 |
|---|---|---|---|
| Jun 8, 8:34 PM EDT | FLASH FLOOD | 1 Wnw West Newton, PA | RESIDENTIAL FLOODING ON PITTSBURGH ST |
| Jun 8, 8:42 PM EDT | FLASH FLOOD | 1 E Fitz Henry, PA | RESIDENTIAL FLOODING ON FITZ HENRY RD |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Pittsburgh, PA (KAGC), launched 00:00Z, 0.4 hours before the alert went out and 37 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
- 914 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1075 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
506
WGUS51 KPBZ 090024
FFWPBZ
PAC129-090330-
/O.NEW.KPBZ.FF.W.0013.180609T0024Z-180609T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pittsburgh PA
824 PM EDT FRI JUN 8 2018
The National Weather Service in Pittsburgh has issued a
* Flash Flood Warning for...
Southwestern Westmoreland County in southwestern Pennsylvania...
* Until 1130 PM EDT.
* At 824 PM EDT, radar indicated heavy rain in the warned area.
FLASH FLOODING... Expected.
ESTIMATED RAINFALL... 1 to 2 inches.
ADDITIONAL RAINFALL...Up to 1 inch.
* Some locations that may experience flooding include...
Monessen... Donora...
Charleroi... West Newton...
North Belle Vernon... Speers...
Lynnwood-Pricedale... Sutersville...
Smithton...
This includes Interstate 70 in Pennsylvania between mile markers 41
and 52.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown. Most flood fatalities occur in vehicles.
Please report flooding by calling 412-262-1988, posting to
the NWS Pittsburgh Facebook page, or using Twitter @NWSPITTSBURGH.
&&
LAT...LON 4011 7972 4013 7975 4013 7989 4016 7990
4017 7986 4019 7985 4020 7987 4023 7979
4024 7981 4026 7979 4025 7969 4011 7967
$$2 follow-up statements
305
WGUS71 KPBZ 090105
FFSPBZ
Flash Flood Statement
National Weather Service Pittsburgh PA
905 PM EDT FRI JUN 8 2018
PAC129-090330-
/O.CON.KPBZ.FF.W.0013.000000T0000Z-180609T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Westmoreland PA-
905 PM EDT FRI JUN 8 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT FOR
SOUTHWESTERN WESTMORELAND COUNTY...
At 903 PM EDT, radar indicated the heavy rain has exited the warned
area. Scattered showers are still possible this evening. Additional
runoff from previous heavy rain could cause localized flooding.
FLASH FLOODING... occurring.
ESTIMATED RAINFALL... Up to 1 inch.
ADDITIONAL RAINFALL...Up to 1/2 inch.
This includes Interstate 70 in Pennsylvania between mile markers 41
and 52.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown. Most flood fatalities occur in vehicles.
Please report flooding by calling 412-262-1988, posting to
the NWS Pittsburgh Facebook page, or using Twitter @NWSPITTSBURGH.
&&
LAT...LON 4011 7972 4013 7975 4013 7989 4016 7990
4017 7986 4019 7985 4020 7987 4023 7979
4024 7981 4026 7979 4025 7969 4011 7967
$$082
WGUS71 KPBZ 090154
FFSPBZ
Flash Flood Statement
National Weather Service Pittsburgh PA
954 PM EDT FRI JUN 8 2018
PAC129-090204-
/O.CAN.KPBZ.FF.W.0013.000000T0000Z-180609T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Westmoreland PA-
954 PM EDT FRI JUN 8 2018
...THE FLASH FLOOD WARNING FOR SOUTHWESTERN WESTMORELAND COUNTY IS
CANCELLED...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.
LAT...LON 4011 7972 4013 7975 4013 7989 4016 7990
4017 7986 4019 7985 4020 7987 4023 7979
4024 7981 4026 7979 4025 7969 4011 7967
$$The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 8:37 PM EDT | Special Weather Statement | PBZ | Westmoreland | 38 min |
| Jun 9, 2:36 PM EDT | Flash Flood Watch | PBZ | Allegheny, Fayette, Washington, Westmoreland | 9 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 2018Every flash flood warning in 2018
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.