Alert archive / Pennsylvania / Flash Flood Warnings in 2006

Flash Flood Warning 45, NWS Cleveland, OH

July 27, 2006Crawford County, Pennsylvania

NWS Cleveland, OH issued this flash flood warning at Jul 27, 2006, 1:30 PM 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 outline as issued.

The facts

Issued
Jul 27, 2006, 1:30 PM EDT (17:30 UTC)
Expired
Jul 27, 2006, 4:30 PM EDT
In force
3 hr
Issued by
NWS Cleveland, OH
Area
Counties, with a storm outline in the text

County Crawford County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 5.5 hours before the alert went out and 157 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, Pittsburgh, PA at 12:00Z on 2006-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1155 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, Pittsburgh, PA at 12:00Z on 2006-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.193958Sfc1 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
1155 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
966 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
40 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 271735
FFWCLE
PAC039-272030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
130 PM EDT THU JUL 27 2006

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 430 PM EDT

* AT 126 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
A SLOW MOVING THUNDERSTORM WITH TORRENTIAL RAINFALL NEAR 
SPRINGBORO.  THIS STORM HAS PRODUCED AN ESTIMATED 2 TO 3 INCHES OF 
RAIN DURING THE PAST HOUR NORTH OF SPRINGBORO NEAR THE 
ERIE...CRAWFORD COUNTY LINE.  ADDITIONAL RAINFALL OF 1 TO 2 INCHES 
IS POSSIBLE THROUGH 3 PM IN THIS AREA.

* LOCATIONS IMPACTED INCLUDE BEAVER AND SPRING TOWNSHIPS IN 
NORTHWESTERN CRAWFORD COUNTY.  STREAMS IMPACTED INCLUDE MUD RUN... 
CONNEAUT CREEK AND THE WEST BRANCH OF CONNEAUT CREEK.
  
IN HILLY TERRAIN THERE ARE NUMEROUS LOW WATER CROSSINGS WHICH CAN 
QUICKLY BECOME DANGEROUS DURING HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL 
ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW 
INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

LAT...LON 4178 8051 4175 8030 4185 8032 4185 8050

$$

ASTIFAN
1 follow-up statement
000 
WGUS71 KCLE 272023
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
421 PM EDT THU JUL 27 2006

PAC039-272031-
CRAWFORD PA-
421 PM EDT THU JUL 27 2006

...THE FLASH FLOOD WARNING WILL EXPIRE AT 430 PM EDT FOR CRAWFORD 
COUNTY IN NORTHWEST PENNSYLVANIA...

BE ALERT FOR STANDING WATER THIS EVENING IF TRAVELLING IN NORTHWEST 
CRAWFORD COUNTY.  A FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH 
FRIDAY MORNING.

LAT...LON 4178 8051 4175 8030 4185 8032 4185 8050

$$

ASTIFAN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 12:41 PM EDTSevere Thunderstorm WarningCLEErie64 min
Jul 27, 12:59 PM EDTSevere Thunderstorm WarningCLECrawford46 min
Jul 27, 2:45 PM EDTFlash Flood WatchCLECrawford, Erie20 hr
Jul 27, 5:54 PM EDTFlash Flood WarningCLECrawford3 hr

Nearby

Flash Flood Warnings in Pennsylvania, 2006Every flash flood warning in 2006

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.