Alert archive / Pennsylvania / Flash Flood Warnings in 2018
Flash Flood Warning 21, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this flash flood warning at Jun 10, 2018, 7:35 PM EDT for Fayette County, Westmoreland County, Pennsylvania. It was in force for 4 hr. 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 10, 2018, 7:35 PM EDT (23:35 UTC)
- Expired
- Jun 10, 2018, 11:30 PM EDT
- In force
- 4 hr
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Fayette County, PA, Westmoreland County, PA
The radar
The Pittsburgh radar (KPBZ), 86 km from the middle of the area, began a volume at 23:38 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 10, 8:35 PM EDT | FLASH FLOOD | Middletown, PA | FLOODING ON MIDDLETOWN RD |
| Jun 10, 8:43 PM EDT | FLASH FLOOD | 1 E Greensburg, PA | IN GREENSBURG: MULTIPLE ROADWAYS CLOSED DUE TO FLOODING; PORTIONS OF 119 CLOSED, SEVERE BASEMENT FLOODING REPORTED. |
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 12:00Z, 11.6 hours before the alert went out and 71 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
- 32 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 789 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 96 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
700
WGUS51 KPBZ 102335
FFWPBZ
PAC051-129-110230-
/O.NEW.KPBZ.FF.W.0021.180610T2335Z-180611T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pittsburgh PA
735 PM EDT SUN JUN 10 2018
The National Weather Service in Pittsburgh has issued a
* Flash Flood Warning for...
Southwestern Westmoreland County in southwestern Pennsylvania...
Northeastern Fayette County in southwestern Pennsylvania...
* Until 1030 PM EDT.
* At 735 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...
Greensburg... Jeannette...
Latrobe... Mount Pleasant...
Scottdale... Irwin...
McChesneytown-Loyalhanna... Manor...
Youngwood... Derry...
Lawson Heights... New Stanton...
This includes the following highways...
Interstate 70 in Pennsylvania between mile markers 52 and 57.
Pennsylvania Turnpike between mile markers 63 and 98.
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 4009 7924 4009 7926 4008 7926 4008 7927
4007 7927 4006 7928 4008 7967 4038 7975
4037 7923
$$3 follow-up statements
815
WGUS71 KPBZ 110022
FFSPBZ
Flash Flood Statement
National Weather Service Pittsburgh PA
822 PM EDT SUN JUN 10 2018
PAC051-129-110230-
/O.CON.KPBZ.FF.W.0021.000000T0000Z-180611T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Westmoreland PA-Fayette PA-
822 PM EDT SUN JUN 10 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT FOR
SOUTHWESTERN WESTMORELAND AND NORTHEASTERN FAYETTE COUNTIES...
At 821 PM EDT, radar indicated heavy rain in the warned area.
FLASH FLOODING... Expected.
ESTIMATED RAINFALL... 1 to 2 inches.
ADDITIONAL RAINFALL...Up to 1 inch.
This includes the following highways...
Interstate 70 in Pennsylvania between mile markers 52 and 57.
Pennsylvania Turnpike between mile markers 63 and 98.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown. Most flood fatalities occur in vehicles.
Please report flooding by calling 412-262-1988, posting to
the NWS Pittsburgh Facebook page, or using Twitter @NWSPITTSBURGH.
&&
LAT...LON 4009 7924 4009 7926 4008 7926 4008 7927
4007 7927 4006 7928 4008 7967 4038 7975
4037 7923
$$433
WGUS51 KPBZ 110200
FFWPBZ
PAC051-129-110330-
/O.EXT.KPBZ.FF.W.0021.000000T0000Z-180611T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pittsburgh PA
1000 PM EDT SUN JUN 10 2018
The National Weather Service in Pittsburgh has extended the
* Flash Flood Warning for...
Southwestern Westmoreland County in southwestern Pennsylvania...
Northeastern Fayette County in southwestern Pennsylvania...
* Until 1130 PM EDT.
* At 959 PM EDT, radar indicated heavy rain in the warned area.
FLASH FLOODING... Occurring.
ESTIMATED RAINFALL... Up to 2 inches.
ADDITIONAL RAINFALL...Up to 1/2 inch.
This includes the following highways...
Interstate 70 in Pennsylvania between mile markers 52 and 57.
Pennsylvania Turnpike between mile markers 63 and 98.
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 4009 7924 4009 7926 4008 7926 4008 7927
4007 7927 4006 7928 4008 7967 4038 7975
4037 7923
$$743
WGUS71 KPBZ 110325
FFSPBZ
Flash Flood Statement
National Weather Service Pittsburgh PA
1125 PM EDT SUN JUN 10 2018
PAC051-129-110334-
/O.EXP.KPBZ.FF.W.0021.000000T0000Z-180611T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Westmoreland PA-Fayette PA-
1125 PM EDT SUN JUN 10 2018
...THE FLASH FLOOD WARNING FOR SOUTHWESTERN WESTMORELAND AND
NORTHEASTERN FAYETTE COUNTIES WILL EXPIRE AT 1130 PM EDT...
Heavy rain has ended for the night and flood water is receding.
Please continue to heed any remaining road closures.
LAT...LON 4009 7924 4009 7926 4008 7926 4008 7927
4007 7927 4006 7928 4008 7967 4038 7975
4037 7923
$$The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 6:00 PM EDT | Flash Flood Warning | PBZ | Allegheny, Fayette, Washington, Westmoreland | 5 hr |
| Jun 10, 6:29 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 26 min |
| Jun 10, 6:41 PM EDT | Flash Flood Warning | PBZ | Allegheny, Washington | 3 hr |
| Jun 10, 7:04 PM EDT | Flash Flood Warning | PBZ | Fayette | 5 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.