Alert archive / Pennsylvania / Flash Flood Warnings in 2007
Flash Flood Warning 25, NWS Cleveland, OH
NWS Cleveland, OH issued this flash flood warning at Sep 8, 2007, 7:26 PM EDT for Crawford County, Pennsylvania. It was in force for 4 hr. 4 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
- Sep 8, 2007, 7:26 PM EDT (23:26 UTC)
- Expired
- Sep 8, 2007, 11:30 PM EDT
- In force
- 4 hr
- Issued by
- NWS Cleveland, OH
- Area
- Counties, with a storm outline in the text
- Flood severity
- None
County Crawford County, PA
The radar
The Pittsburgh radar (KPBZ), 121 km from the middle of the area, began a volume at 23:27 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 |
|---|---|---|---|
| Sep 8, 8:30 PM EDT | FLOOD | 4 Ssw Conneaut Lake, PA | HIGH WATER REPORTED ON STATE ROUTE 18 IN ADAMSVILLE. DEPTH OF WATER OVER ROAD WAS NOT REPORTED. |
| Sep 8, 8:30 PM EDT | FLOOD | Meadville, PA | HIGH WATER REPORTED ON SOUTH MAIN STREET. DEPTH OF HIGH WATER WAS NOT REPORTED. |
| Sep 8, 8:30 PM EDT | FLOOD | Townville, PA | HIGH WATER REPORTED ON STATE ROUTE 408. DEPTH OF HIGH WATER WAS NOT REPORTED. |
| Sep 8, 8:57 PM EDT | FLOOD | Meadville, PA | HIGH WATER ON ROADS WAS REPORTED ON VARIOUS ROADS THROUGHOUT THE COUNTY. NO ROADS WERE REPORTED CLOSED DUE TO HIGH WATER. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 11.4 hours before the alert went out and 182 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
- 782 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 565 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 100 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 082331
FFWCLE
PAC039-090330-
/X.NEW.KCLE.FF.W.0025.070908T2326Z-070909T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
726 PM EDT SAT SEP 8 2007
THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CRAWFORD COUNTY IN NORTHWEST PENNSYLVANIA
* UNTIL 1130 PM EDT
* AT 720 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED THAT
THUNDERSTORMS HAVE CONTINUED TO MOVE FROM WEST TO EAST ACROSS THE
COUNTY. RADAR HAS ESTIMATED THAT NEARLY THREE INCHES OF RAIN HAS
FALLEN SINCE EARLIER IN THE EVENING. ADDITIONAL RAINFALL OF TWO
PLUS INCHES IS LIKELY FROM THE HEAVIER STORMS THAT MOVE REPEATEDLY
OVER THE SAME LOCATION. SO FAR THE KELLY RUN AND FRENCH CREEK
BASINS NEAR CAMBRIDGE SPRINGS AND THE CROCKED CREEK BASIN SOUTH OF
LINESVILLE HAVE HAD THE MOST AMOUNT OF RAIN AND WOULD INITIALLY BE
MOST SUSCEPTIBLE TO FLASH FLOODING.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MEADVILLE...SPARTANSBURG...LINESVILLE AND CAMBRIDGE SPRINGS.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
LAT...LON 4162 7965 4162 7983 4159 7986 4159 7988
4151 8000 4149 8001 4148 8013 4149 8052
4150 8053 4185 8052 4185 7963 4162 7962
TIME...MOT...LOC 2326Z 180DEG 0KT 4165 8009
$$
OUDEMAN2 follow-up statements
000
WGUS71 KCLE 090132
FFSCLE
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
928 PM EDT SAT SEP 8 2007
PAC039-090330-
/X.CON.KCLE.FF.W.0025.000000T0000Z-070909T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD PA-
928 PM EDT SAT SEP 8 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT FOR
CRAWFORD COUNTY IN NORTHWEST PENNSYLVANIA...
AT 921 PM EDT...DOPPLER RADAR INDICATED THAT SHOWERS AND
THUNDERSTORMS CONTINUE TO MOVE ACROSS THE AREA. LAW ENFORCEMENT
OFFICIALS HAVE REPORTED THAT THERE WAS WATER OVER STATE ROUTE 18 IN
ADAMSVILLE AND THERE WAS WATER OVER SOUTH MAIN STREET IN MEADVILLE.
ADDITIONALLY THERE WAS WATER OVER STATE ROUTE 408 IN TOWNSVILLE.
RUNOFF WILL CONTINUE FOR THE NEXT COUPLE OF HOURS RESULTING IN
FLOODED OR ELVELATED CREEKS...AND STREAMS...ALONG WITH WATER OVER
SOME AREA ROADS.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SPARTANSBURG...LINESVILLE AND CAMBRIDGE SPRINGS.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
LAT...LON 4162 7965 4162 7983 4159 7986 4159 7988
4151 8000 4149 8001 4148 8013 4149 8052
4150 8053 4185 8052 4185 7963 4162 7962
TIME...MOT...LOC 0128Z 180DEG 0KT 4165 8009
$$
OUDEMAN000
WGUS71 KCLE 090330
FFSCLE
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
1126 PM EDT SAT SEP 8 2007
PAC039-090336-
/X.EXP.KCLE.FF.W.0025.000000T0000Z-070909T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD PA-
1126 PM EDT SAT SEP 8 2007
...THE FLASH FLOOD WARNING WILL EXPIRE AT 1130 PM EDT FOR CRAWFORD
COUNTY IN NORTHWEST PENNSYLVANIA...
WHILE THERE COULD BE LOCAL PONDING OF WATER OR LOW LYING AREAS WHERE
WATER REMAINS ACROSS THE ROADS...THE VERY HEAVY RAINFALL THAT SPREAD
ACROSS THE COUNTY HAD WEAKENED AND MOVED OUT OF THE COUNTY.
REMEMBER...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. MOVE TO HIGHER GROUND.
LAT...LON 4162 7965 4162 7983 4159 7986 4159 7988
4151 8000 4149 8001 4148 8013 4149 8052
4150 8053 4185 8052 4185 7963 4162 7962
TIME...MOT...LOC 0326Z 180DEG 0KT 4165 8009
$$
KINGThe office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 3:04 PM EDT | Flash Flood Watch | CLE | Crawford, Erie | 19 hr |
| Sep 8, 4:34 PM EDT | Flash Flood Warning | CLE | Crawford, Erie | 3 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 2007Every flash flood warning in 2007
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.