Alert archive / Pennsylvania / Flash Flood Warnings in 2017
Flash Flood Warning 3, NWS State College, PA
NWS State College, PA issued this flash flood warning at Jun 15, 2017, 6:48 PM EDT for Cambria County, Somerset County, Pennsylvania. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 15, 2017, 6:48 PM EDT (22:48 UTC)
- Expired
- Jun 15, 2017, 9:45 PM EDT
- In force
- 3 hr
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Cambria County, PA, Somerset County, PA
The radar
The State College radar (KCCX), 92 km from the middle of the area, began a volume at 22:48 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 (KAGC), launched 12:00Z, 10.8 hours before the alert went out and 111 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
- 290 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 892 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
913 WGUS51 KCTP 152248 FFWCTP PAC021-111-160145- /O.NEW.KCTP.FF.W.0003.170615T2248Z-170616T0145Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service State College PA 648 PM EDT THU JUN 15 2017 The National Weather Service in State College PA has issued a * Flash Flood Warning for... Northeastern Somerset County in south central Pennsylvania... Southwestern Cambria County in central Pennsylvania... * Until 945 PM EDT. * At 648 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Over one inch of rain has already fallen. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Belmont, Johnstown, Windber, Westmont, Portage, Nanty-Glo, Salix-Beauty Line Park, Davidsville, Vinco and Scalp Level. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 4045 7862 4016 7881 4020 7902 4050 7887 $$ Ceru
2 follow-up statements
328 WGUS71 KCTP 152321 FFSCTP Flash Flood Statement National Weather Service State College PA 721 PM EDT THU JUN 15 2017 PAC021-111-160145- /O.CON.KCTP.FF.W.0003.000000T0000Z-170616T0145Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Somerset PA-Cambria PA- 721 PM EDT THU JUN 15 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM EDT FOR NORTHEASTERN SOMERSET AND SOUTHWESTERN CAMBRIA COUNTIES... At 719 PM EDT, local law enforcement reported flash flooding in Johnstown. Up to two inches of rain have already fallen. Flash flooding is already occurring. Excessive rainfall over the warned area will cause mud slides near steep terrain. The mud slide can consist of rock, mud, vegetation and other loose materials. Some locations that will experience flooding include... Belmont, Johnstown, Windber, Westmont, Portage, Nanty-Glo, Salix-Beauty Line Park, Davidsville, Vinco and Scalp Level. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other drainage areas and low lying spots. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route. && LAT...LON 4045 7862 4016 7881 4020 7902 4050 7887 $$ Ceru
774 WGUS71 KCTP 160027 FFSCTP Flash Flood Statement National Weather Service State College PA 827 PM EDT THU JUN 15 2017 PAC021-111-160145- /O.CON.KCTP.FF.W.0003.000000T0000Z-170616T0145Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Somerset PA-Cambria PA- 827 PM EDT THU JUN 15 2017 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM EDT FOR NORTHEASTERN SOMERSET AND SOUTHWESTERN CAMBRIA COUNTIES... At 824 PM EDT, local law enforcement reported flash flooding on MT. Airy Drive. Up to two inches of rain have already fallen. Flash flooding is already occurring. Some locations that will experience flooding include... Belmont, Johnstown, Windber, Westmont, Portage, Nanty-Glo, Salix-Beauty Line Park, Davidsville, Vinco and Scalp Level. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other drainage areas and low lying spots. && LAT...LON 4045 7862 4016 7881 4020 7902 4050 7887 $$ Ceru
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 11:50 AM EDT | Flash Flood Watch | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 6 more | 14 hr |
| Jun 15, 5:47 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Clearfield | 88 min |
| Jun 15, 6:12 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk | 78 min |
| Jun 15, 6:23 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 67 min |
| Jun 15, 6:38 PM EDT | Areal Flood Advisory | CTP | Cambria, Somerset | 3 hr |
| Jun 15, 6:49 PM EDT | Severe Thunderstorm Warning | CTP | Blair | 86 min |
| Jun 15, 6:59 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton | 83 min |
| Jun 15, 7:38 PM EDT | Special Weather Statement | CTP | Tioga | 67 min |
| Jun 15, 7:40 PM EDT | Areal Flood Advisory | CTP | Blair, Cambria | 2 hr |
| Jun 15, 7:57 PM EDT | Areal Flood Advisory | CTP | Bedford, Blair | 2 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 2017Every flash flood warning in 2017
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.