Alert archive / Pennsylvania / Flash Flood Warnings in 2003
Flash Flood Warning 41, NWS Cleveland, OH
NWS Cleveland, OH issued this flash flood warning at Aug 10, 2003, 7:35 AM EDT for Crawford 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 counties it named.
The facts
- Issued
- Aug 10, 2003, 7:35 AM EDT (11:35 UTC)
- Expired
- Aug 10, 2003, 10:30 AM EDT
- In force
- 3 hr
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
County Crawford County, PA
The radar
The Pittsburgh radar (KPBZ), 129 km from the middle of the area, began a volume at 11:34 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, 11.6 hours before the alert went out and 142 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
- 444 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 848 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS51 KCLE 101136 FFWCLE PAC039-101430- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE CLEVELAND OH 735 AM EDT SUN AUG 10 2003 THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A * FLASH FLOOD WARNING FOR... CRAWFORD COUNTY IN NORTHWEST PENNSYLVANIA... * UNTIL 1030 AM EDT * AT 727 AM EDT WEATHER SERVICE RADAR INDICATED A CLUSTER OF SHOWERS AND THUNDERSTORMS THAT WERE DROPPING LOCALLY HEAVY RAIN. THE STORMS WERE NEARLY STATIONARY. * SOME LOCATIONS AFFECTED INCLUDE... LINESVILLE MEADVILLE EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. DO NOT LET YOUR CHILDREN PLAY NEAR DRAINAGE DITCHES, STORM SEWERS OR STREAMS. EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLASH FLOODING OF CREEKS AND STREAMS...ROADS AND ROADSIDE CULVERTS. THE HEAVY RAINS COULD ALSO TRIGGER ROCK AND MUDSLIDES IN STEEP TERRAIN. $$ LOMBARDY
1 follow-up statement
000 WGUS71 KCLE 101501 FFSCLE PAC039-101545- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 1039 AM EDT SUN AUG 10 2003 ...THE FLASH FLOOD WARNING FOR CRAWFORD COUNTY HAS EXPIRED... THE SHOWERS AND ISOLATED THUNDERSTORMS THAT CAUSED THE FLOODING THIS MORNING HAD DECREASED IN COVERAGE. RADAR ESTIMATED THAT AT LEAST 1.5 TO 2 INCHES OF RAIN FELL EARLIER THIS MORNING. OVER AN INCH FELL IN ONE HOUR FROM SAEGERTOWN SOUTH TO MEADVILLE AND COCHRANTON. SOME ROADS WERE STILL COVERED WITH WATER ACROSS THESE AREAS AND SEVERAL ROADS WERE REPORTED WASHED OUT. SHOWERS AND THUNDERSTORMS AREA EXPECTED AGAIN THROUGH THE AFTERNOON AND THE POTENTIAL FOR SOME HEAVY RAIN WILL CONTINUE. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. ALSO SOME ROADWAYS COULD BE WASHED OUT UNDER THE HIGH WATER. BM
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 3:37 PM EDT | Flash Flood Warning | CLE | Crawford | 4 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 2003Every flash flood warning in 2003
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.