Alert archive / Pennsylvania / Flash Flood Warnings in 2013

Flash Flood Warning 26, NWS Cleveland, OH

July 23, 2013Crawford County, Erie County, Pennsylvania

NWS Cleveland, OH issued this flash flood warning at Jul 23, 2013, 4:32 PM EDT for Crawford County, Erie County, Pennsylvania. It was in force for 5 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 23, 2013, 4:32 PM EDT (20:32 UTC)
Expired
Jul 23, 2013, 10:00 PM EDT
In force
5 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Flood severity
None

Counties Crawford County, PA, Erie County, PA

The radar

The Pittsburgh radar (KPBZ), 153 km from the middle of the area, began a volume at 20:31 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 12:00Z, 8.5 hours before the alert went out and 156 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-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 12:00Z on 2013-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 143 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2013-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
143 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
622 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
37 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.

467 
WGUS51 KCLE 232032
FFWCLE
PAC039-049-240200-
/O.NEW.KCLE.FF.W.0026.130723T2032Z-130724T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
432 PM EDT TUE JUL 23 2013

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 1000 PM EDT.

* AT 426 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 
  TORRENTIAL RAINFALL IS FALLING WITH STORMS CURRENTLY OVER EDINBORO
  TO CAMBRIDGE SPRINGS AND EXTENDING WEST TO THE OHIO STATE LINE. 
  EXCESSIVE RAINFALL RATES OVER SATURATED GROUND COVER WILL LEAD TO 
  ENHANCED RUNOFF AND RESULT IN FLASH FLOODING. 

* LOCATIONS IMPACTED INCLUDE...
  EDINBORO...
  CAMBRIDGE SPRINGS...
  MEADVILLE...
  ERIE...
  WATERFORD...
  UNION CITY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 4162 7983 4149 8001 4149 8052 4198 8052
      4209 8019 4217 8011 4217 8007 4215 8006
      4227 7976 4200 7976 4200 7961 4162 7961

$$
SJ
2 follow-up statements
967 
WGUS71 KCLE 232124
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
524 PM EDT TUE JUL 23 2013

PAC039-049-240200-
/O.CON.KCLE.FF.W.0026.000000T0000Z-130724T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD PA-ERIE PA-
524 PM EDT TUE JUL 23 2013

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR ERIE AND CRAWFORD
COUNTIES IN NORTHWEST PENNSYLVANIA UNTIL 1000 PM EDT...

DOPPLER RADAR ESTIMATES BETWEEN ONE AND TWO INCHES OF RAIN FELL
OVER PORTIONS OF ERIE AND CRAWFORD COUNTIES SINCE 4 PM. THE RAIN
FELL IN UNDER AN HOUR AND PRODUCED RAPID RUNOFF. THOUGH THE RAIN
HAS MOVED OUT OF THE AREA...THE RUNOFF WILL CONTINUE TO CAUSE 
STREAMS AND CREEKS TO RISE. AREAS THAT SAW SOME OF THE HEAVIEST
RAINFALL INCLUDE EDINBORO...CAMBRIDGE SPRINGS...WATERFORD...AND 
CONNEAUTVILLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA...MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS A FLOODED AREA ON FOOT OR BY AUTOMOBILE.

&&

LAT...LON 4162 7983 4149 8001 4149 8052 4198 8052
      4209 8019 4217 8011 4217 8007 4215 8006
      4227 7976 4200 7976 4200 7961 4162 7961

$$

SJAMISON
524 
WGUS71 KCLE 232311
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
711 PM EDT TUE JUL 23 2013

PAC039-049-232320-
/O.CAN.KCLE.FF.W.0026.000000T0000Z-130724T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD PA-ERIE PA-
711 PM EDT TUE JUL 23 2013

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR ERIE AND CRAWFORD
COUNTIES IN NORTHWEST PENNSYLVANIA IS CANCELLED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. 

IF FLOODING IS OBSERVED...PLEASE REPORT IT TO THE NEAREST LAW 
ENFORCEMENT AGENCY SO THAT THEY MAY TAKE APPROPRIATE ACTION TO CLOSE 
FLOODED ROADWAYS. THEY WILL RELAY YOUR REPORT TO THE NATIONAL 
WEATHER SERVICE IN CLEVELAND.

LAT...LON 4162 7983 4149 8001 4149 8052 4198 8052
      4209 8019 4217 8011 4217 8007 4215 8006
      4227 7976 4200 7976 4200 7961 4162 7961

$$

KING

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 2:37 AM EDTDense Fog AdvisoryCLECrawford, Erie6 hr
Jul 23, 4:11 PM EDTSevere Thunderstorm WarningCLECrawford, Erie64 min
Jul 23, 4:38 PM EDTTornado WarningCLECrawford37 min

Nearby

Flash Flood Warnings in Pennsylvania, 2013Every flash flood warning in 2013

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.