Alert archive / Ohio / Flash Flood Warnings in 1994

Flash Flood Warning 19, NWS Cleveland, OH

April 12, 1994Portage County, Summit County, Wayne County, Ohio

NWS Cleveland, OH issued this flash flood warning at Apr 12, 1994, 4:09 AM EDT for Portage County, Summit County, Wayne County, Ohio. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Apr 12, 1994, 4:09 AM EDT (08:09 UTC)
Expired
Apr 12, 1994, 8:15 AM EDT
In force
4 hr
Issued by
NWS Cleveland, OH
Area
Whole counties

Counties Portage County, OH, Summit County, OH, Wayne County, OH

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 8.2 hours before the alert went out and 140 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 00:00Z on 1994-04-12Temperature 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, Pittsburgh, PA at 00:00Z on 1994-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 187 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
1236 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
187 m²/s²
0-3 km storm-relative helicity
531 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 KCAK 120810
FFWCAK
OHC133-153-169-121215-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE AKRON OH
409 AM EDT TUE APR 12 1994
 
THE NATIONAL WEATHER SERVICE IN AKRON HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  815 AM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...S...
 
IN NORTHEAST OHIO
 
   ...PORTAGE COUNTY...SUMMIT COUNTY...WAYNE COUNTY
 
RADAR AT 4 AM EDT WAS SHOWING A BAND OF THUNDERSTORMS WITH VERY HEAVY
RAIN FROM WAYNE COUNTY EAST INTO SUMMIT AND PORTAGE COUNTIES.
 
THESE STORMS HAVE THE POTENTIAL TO PRODUCE MORE THAN AN INCH OF RAIN IN
LESS THAN HOUR.
 
WITH THE GROUND ALREADY SATURATED..THIS ADDITIONAL HEAVY RAIN WILL
LIKELY FLOOD SOME STREETS AND BASEMENTS AS WELL AS SEND SOME SMALL
STREAMS OUT OF THEIR BANKS.
 
 
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 UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
RLB

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, 3:47 AM EDT, 22 minutes before
OHZ023-033-041-PAZ007-013-120830-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
245 AM EDT TUE APR 12 1994

THUNDERSTORMS WERE RUMBLING THROUGH THE MAHONING AND SHENANGO VALLEYS
OVERNIGHT.

AT 240 AM NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF SHOWERS FROM
ERIE PENNSYLVANIA BACK TO MANSFIELD OHIO. A FEW THUNDERSTORMS WERE
EMBEDDED WITHIN THIS LINE OF SHOWERS. THESE STORMS WERE MOVING NORTHEAST
AT 20 MILES PER HOUR. THESE THUNDERSTORMS CONTAIN DEADLY LIGHTNING...
WIND GUSTS TO 30 MPH...AND BRIEF HEAVY RAIN.

AS THE GROUND IN THE MAHONING AND SHENANGO VALLEYS IS ALREADY NEARLY
SATURATED...THIS RAINFALL MAY CAUSE FLOODING PROBLEMS. IF YOU LIVE
IN A FLOOD-PRONE AREA...BvE ALERT FOR ANY TROUBLES THAT MAY ARISE.
TUNE TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR FURTHER UPDATES.

VEENEMAN

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 3:52 AM EDTFlash Flood WarningCLEHuron, Lorain, Medina3 hr
Apr 12, 4:30 AM EDTFlash Flood WarningCLEStark4 hr
Apr 12, 4:40 AM EDTFlash Flood WarningCLEMahoning, Trumbull4 hr

Nearby

Flash Flood Warnings in Ohio, 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.