Alert archive / Ohio / Flash Flood Warnings in 1990

Flash Flood Warning 90, NWS Cleveland, OH

December 18, 1990Monroe County, Noble County, Washington County, Ohio

NWS Cleveland, OH issued this flash flood warning at Dec 18, 1990, 2:34 PM EST for Monroe County, Noble County, Washington County, Ohio. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Dec 18, 1990, 2:34 PM EST (19:34 UTC)
Expired
Dec 18, 1990, 6:30 PM EST
In force
4 hr
Issued by
NWS Cleveland, OH
Area
Whole counties

Counties Monroe County, OH, Noble County, OH, Washington County, OH

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 7.6 hours before the alert went out and 136 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 1990-12-18Temperature 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 12:00Z on 1990-12-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 116 square meters per square second.1939587897117136Sfc1 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
766 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
116 m²/s²
0-3 km storm-relative helicity
150 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 181935
FFWCAK
OHC111-121-167-182330-
 
BULLETIN - EBS ACTIVATION REQUESTED
SMALL STREAM AND URBAN FLOOD WARNING
NATIONAL WEATHER SERVICE AKRON OH
234 PM EST TUE DEC 18 1990
 
THE NATIONAL WEATHER SERVICE IN AKRON HAS ISSUED A
SMALL STREAM AND URBAN FLOOD WARNING EFFECTIVE UNTIL  630 PM EST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTHEAST OHIO
          ...MONROE...NOBLE...WASHINGTON
 
THE SHERIFF DEPARTMENTS IN WASHINGTON...NOBLE...AND MONROE COUNTIES OF
SOUTHEAST OHIO REPORTED STREAMS RISING ONTO SEVERAL COUNTY AND STATE
ROADWAYS AT 230 THIS AFTERNOON.
 
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.
THOMPSON

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 18, 4:08 PM ESTFlash Flood WarningCLETuscarawas3 hr

Nearby

Flash Flood Warnings in Ohio, 1990Every flash flood warning in 1990

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.