Alert archive / Pennsylvania / Flash Flood Warnings in 2018
Flash Flood Warning 4, NWS Cleveland, OH
NWS Cleveland, OH issued this flash flood warning at May 31, 2018, 6:22 PM EDT for Crawford County, Pennsylvania. It was in force for 3 hr. 1 report 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
- May 31, 2018, 6:22 PM EDT (22:22 UTC)
- Expired
- May 31, 2018, 9:20 PM EDT
- In force
- 3 hr
- Issued by
- NWS Cleveland, OH
- Area
- Storm-based polygon
- Flood severity
- None
County Crawford County, PA
The radar
The Pittsburgh radar (KPBZ), 136 km from the middle of the area, began a volume at 22:25 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 |
|---|---|---|---|
| May 31, 7:00 PM EDT | FLOOD | Saegertown, PA | MORE THAN A DOZEN ROADS FLOODED IN SAGERTOWN AND CAMBRIDGE SPRINGS. |
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, 10.4 hours before the alert went out and 148 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
- 239 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 710 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
060 WGUS51 KCLE 312222 FFWCLE PAC039-010215- /O.NEW.KCLE.FF.W.0004.180531T2222Z-180601T0215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Cleveland OH 622 PM EDT THU MAY 31 2018 The National Weather Service in Cleveland has issued a * Flash Flood Warning for... Central Crawford County in northwestern Pennsylvania... * Until 1015 PM EDT * At 621 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Up to two inches of rain have already fallen in less than an hour. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Meadville, Cambridge Springs, Lincolnville, Canadohta Lake, Saegertown, Blooming Valley, Townville, Venango and Woodcock. LAT...LON 4184 7984 4165 7985 4162 8022 4176 8030 $$ Greenawalt
1 follow-up statement
930 WGUS71 KCLE 010120 FFSCLE Flash Flood Statement National Weather Service Cleveland OH 920 PM EDT THU MAY 31 2018 PAC039-010130- /O.CAN.KCLE.FF.W.0004.000000T0000Z-180601T0215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Crawford PA- 920 PM EDT THU MAY 31 2018 ...THE FLASH FLOOD WARNING FOR CENTRAL CRAWFORD COUNTY IS CANCELLED... Flood waters have receded. Flooding is no longer expected to pose a threat. Please continue to heed any remaining road closures. LAT...LON 4184 7984 4165 7985 4162 8022 4176 8030 $$ Greenawalt
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 4:10 PM EDT | Areal Flood Advisory | CLE | Crawford, Erie | 3 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.