Alert archive / Pennsylvania / Flash Flood Warnings in 2004

Flash Flood Warning 32, NWS Cleveland, OH

July 18, 2004Crawford County, Erie County, Pennsylvania

NWS Cleveland, OH issued this flash flood warning at Jul 18, 2004, 1:45 AM EDT for Crawford County, Erie County, Pennsylvania. It was in force for 4 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: Jul 18, 2004, 1:45 AM EDT (05:45 UTC)
Expired: Jul 18, 2004, 6:00 AM EDT
In force: 4 hr
Issued by: NWS Cleveland, OH
Area: Counties, with a storm outline in the text

Counties Crawford County, PA, Erie County, PA

The radar

The Pittsburgh radar (KPBZ), 148 km from the middle of the area, began a volume at 05:47 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

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 5.8 hours before the alert went out and 150 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 217 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 1356 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 52 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS51 KCLE 180600 CCA
FFWCLE
PAC039-049-181000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTED WORDING IN THIRD SECTION
NATIONAL WEATHER SERVICE CLEVELAND OH
145 AM EDT SUN JUL 18 2004

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CRAWFORD COUNTY IN NORTHWEST PENNSYLVANIA   
  ERIE COUNTY IN NORTHWEST PENNSYLVANIA

* UNTIL 600 AM EDT

* AT 137 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAINFALL OF 1 TO 2 INCHES PER HOUR OVER EASTERN         
  ERIE AND CRAWFORD COUNTIES. HEAVY RAINFALL WILL CONTINUE           
  ACROSS THE WARNED AREAS FOR THROUGH 4 AM. THIS HEAVY RAINFALL      
  IS OCCURRING OVER ALREADY VERY SATURATED GROUND...WHICH WILL       
  CAUSE FLASH FLOODING.

* LOCATIONS IN THE WARNING INCLUDE...CORRY...SPARTANSBURG...UNION    
  CITY...WATERFORD AND WATTSBURG...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN
AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

REPORT SEVERE WEATHER OR FLOODING TO THE NEAREST LAW ENFORCEMENT
AGENCY AND HAVE THEM RELAY YOUR REPORT TO THE NATIONAL WEATHER
SERVICE.

LAT...LON 4169 7950 4196 7952 4208 8002 4163 8001

$$

MRD

2 follow-up statements

000 
WGUS71 KCLE 180749
FFSCLE
PAC039-049-181000-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
349 AM EDT SUN JUL 18 2004

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR ERIE AND CRAWFORD 
COUNTIES IN NORTHWEST PENNSYLVANIA UNTIL 600 AM...

AT 341 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATED 
THAT 1 TO 3 INCHES OF RAIN HAD FALLEN OVER SOUTHEASTERN ERIE COUNTY 
AND NORTHEAST CRAWFORD COUNTY SINCE MIDNIGHT. ALTHOUGH THE RAINFALL 
RATES HAVE DIMINISHED OVER THE PAST HOUR...RUNOFF FROM THE VERY 
HEAVY RAINFALL FROM EARLIER THIS MORNING WILL CONTINUE TO MAKE FLASH 
FLOODING POSSIBLE. THE AREAS MOST AT RISK FOR FLASH FLOODING ARE 
COREY...ELGIN....AND SPARTANSBURG.

EXCESSIVE RUNOFF FROM THIS HEAVY RAIN COULD CAUSE FLOODING OF SMALL 
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE 
BANKS OF CREEKS AND STREAMS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE 
TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS 
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

REPORT SEVERE WEATHER OR FLOODING TO THE NEAREST LAW ENFORCEMENT
AGENCY AND HAVE THEM RELAY YOUR REPORT TO THE NATIONAL WEATHER
SERVICE.

$$

MRD

000 
WGUS71 KCLE 181004
FFSCLE
PAC039-049-181030-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
601 AM EDT SUN JUL 18 2004

...FLASH FLOOD WARNING FOR ERIE AND CRAWFORD COUNTIES IN NORTHWEST 
PENNSLYVANIA HAS EXPIRED...

THE HEAVY RAINFALL WHICH OCCURRED EARLIER THIS MORNING HAS 
DIMINISHED TO SCATTERED LIGHT SHOWERS. THUS...THE FLASH FLOOD 
WARNING WILL BE ALLOWED TO EXPIRE. NATIONAL WEATHER SERVICE DOPPLER 
RADAR ESTIMATED 1 TO 3 INCHES OF RAIN FELL ACROSS NORTHEAST CRAWFORD 
COUNTY AND SOUTHEAST ERIE COUNTIES. ALTHOUGH THE FLASH FLOOD THREAT 
HAS ENDED...SOME DRAINAGE DITCHES AND SMALL STREAMS MAY BE NEAR 
BANKFULL THIS MORNING...SO USE CAUTION WHILE DRIVING.

$$

MRD

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 17, 8:38 PM EDT	Flash Flood Warning	CLE	Erie	3 hr

Nearby

Flash Flood Warnings in Pennsylvania, 2004 Every flash flood warning in 2004

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.