Alert archive / Pennsylvania / Flash Flood Warnings in 1994

Flash Flood Warning 26, NWS Cleveland, OH

April 13, 1994Crawford County, Erie County, Pennsylvania

NWS Cleveland, OH issued this flash flood warning at Apr 13, 1994, 1:18 AM EDT for Crawford County, Erie County, Pennsylvania. It was in force for 117 min.

The area

The counties it named.

The facts

Issued
Apr 13, 1994, 1:18 AM EDT (05:18 UTC)
Expired
Apr 13, 1994, 3:15 AM EDT
In force
117 min
Issued by
NWS Cleveland, OH
Area
Whole counties

Counties Crawford County, PA, Erie County, PA

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 5.3 hours before the alert went out and 162 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 00:00Z on 1994-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 00:00Z on 1994-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 101 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
566 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
218 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 
TTAA00 KERI 130521
FFWERI
PAC039-049-130715-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ERIE PA
118 AM EDT WED APR 13 1994
 
THE NATIONAL WEATHER SERVICE IN ERIE HAS ISSUED A
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
EFFECTIVE UNTIL  315 AM EDT
FOR THE FOLLOWING LOCATIONS...
 
IN NORTHWEST PENNSYLVANIA
 
   ...CRAWFORD COUNTY...ERIE COUNTY
 
AT 115 AM EDT ERIE WEATHER RADAR INDICATED A POSSIBLE SEVERE
THUNDERSTORM SITUATED IN SOUTHEASTERN ASHTUBULA COUNTY IN NORTHEASTERN
OHIO. THIS STORM WAS MOVING TO THE NORTHEAST AT 50 MILES AN HOUR AND
WILL BE ENTERING CRAWFORD AND ERIE COUNTIES IN NORTHWEST PENNSYLVANIA.
THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL AND STRONG WINDS.
 
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 12, 9:57 PM EDT, 3 hours 21 minutes before
OHZALL-130900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
955 PM EDT TUE APR 12 1994

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR
A PORTION OF WESTERN OHIO UNTIL 3AM EDT AND THE REMAINDER OF OHIO EXCEPT
SOUTHEAST OHIO UNTIL 5AM EDT.

SOME CITIES IN THE WATCH INCLUDE CINCINNATI...DAYTON...FINDLAY...
TOLEDO...CLEVELAND...COLUMBUS...ZANESVILLE AND YOUNGSTOWN.

WARM MOIST AND UNSTABLE AIR WAS IN PLACE ACROSS THE OHIO VALLEY THIS
EVENING AND A COLD FRONT WAS MOVING THROUGH INDIANA.  THUNDERSTORMS WERE
RAPIDLY DEVELOPING ALONG THE FRONT THIS EVENING AND WERE MOVING INTO
WESTERN AND SOUTHERN OHIO.

THE THUNDERSTORMS WILL CONTINUE TO DEVELOP AND MOVE ACROSS THE STATE
TONIGHT. VERY HEAVY RAINFALL...STRONG WINDS AND HAIL ARE POSSIBLE WITH
THESE STORMS AS THEY MOVE ACROSS THE STATE.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 1:18 AM EDTFlash Flood WarningCLELawrence, Mercer4 hr
Apr 13, 1:18 AM EDTSevere Thunderstorm WarningCLECrawford, Erie117 min

Nearby

Flash Flood Warnings in Pennsylvania, 1994Every flash flood warning in 1994

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.