Alert archive / Pennsylvania / Flash Flood Warnings in 2008

Flash Flood Warning 3, NWS Cleveland, OH

February 6, 2008Crawford County, Erie County, Pennsylvania

NWS Cleveland, OH issued this flash flood warning at Feb 6, 2008, 4:54 AM EST 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: Feb 6, 2008, 4:54 AM EST (09:54 UTC)
Expired: Feb 6, 2008, 9:00 AM EST
In force: 4 hr
Issued by: NWS Cleveland, OH
Area: Storm-based polygon
Flood severity: Unknown

Counties Crawford County, PA, Erie County, PA

The radar

The Buffalo radar (KBUF), 153 km from the middle of the area, began a volume at 09:54 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, 9.9 hours before the alert went out and 154 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 473 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 93 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 060957
FFWCLE
PAC039-049-061400-
/O.NEW.KCLE.FF.W.0003.080206T0954Z-080206T1400Z/
/00000.U.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
454 AM EST WED FEB 6 2008

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 900 AM EST

* AT 454 AM EST..BETWEEN 1 TO 2 INCHES OF RAIN HAS ALREADY FALLEN 
WITH UP TO AN ADDITIONAL INCH OF RAIN POSSIBLE BEFORE THE RAIN ENDS 
THIS MORNING. THIS WILL LEAD TO RAPID RISES ON CREEKS AND STREAMS 
AND FLOODING OF LOW LYING AREA. 


* AFFECTED LOCATIONS INCLUDE ALBION...CAMBRIDGE SPRINGS...CORRY...
  EDINBORO...ERIE...GIRARD...LINESVILLE...MEADVILLE...NORTH EAST...
  SPARTANSBURG...UNION CITY AND WATERFORD

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 4164 7963 4162 7993 4149 8005 4150 8052
      4199 8053 4205 8031 4210 8019 4215 8015
      4218 8009 4215 8007 4216 8004 4222 7993
      4226 7979 4200 7977 4196 7963

$$

DJB

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 6, 12:17 AM EST	Areal Flood Warning	CLE	Crawford, Erie	10 hr
Feb 6, 9:13 AM EST	Areal Flood Warning	CLE	Crawford, Erie	22 hr

Nearby

Flash Flood Warnings in Pennsylvania, 2008 Every flash flood warning in 2008

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.