Alert archive / Ohio / Flash Flood Warnings in 1990

Flash Flood Warning 119, NWS Cleveland, OH

December 30, 1990Mahoning County, Trumbull County, Ohio; Lawrence County, Pennsylvania

NWS Cleveland, OH issued this flash flood warning at Dec 30, 1990, 12:56 PM EST for Mahoning County, Trumbull County, Ohio; Lawrence County, Pennsylvania. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Dec 30, 1990, 12:56 PM EST (17:56 UTC)
Expired
Dec 30, 1990, 3:00 PM EST
In force
2 hr
Issued by
NWS Cleveland, OH
Area
Whole counties

Counties Mahoning County, OH, Trumbull County, OH, Lawrence County, PA

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

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 5.9 hours before the alert went out and 257 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 12:00Z on 1990-12-30Temperature 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 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 12:00Z on 1990-12-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 601 square meters per square second.1939587897Sfc1 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
536 m above ground
0-6 km bulk shear
88 kt
0-1 km storm-relative helicity
601 m²/s²
0-3 km storm-relative helicity
765 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 KYNG 301757
FFWYNG
OHC099-155-PAC073-302000-
 
BULLETIN - EBS ACTIVATION REQUESTED
SMALL STREAM AND URBAN FLOOD WARNING
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
1256 PM EST SUN DEC 30 1990
 
THE NATIONAL WEATHER SERVICE IN YOUNGSTOWN HAS ISSUED A
SMALL STREAM AND URBAN FLOOD WARNING EFFECTIVE UNTIL  300 PM EST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN NORTHEAST OHIO
          ...MAHONING...TRUMBULL
IN NORTHWEST PENNSYLVANIA
          ...LAWRENCE
 
AT 1250 PM EST WEATHER RADAR WAS SHOWING A LARGE AREA OF MODERATE RAIN
OVER TRUMBULL AND MAHONING COUNTIES IN OHIO. THIS ADDITIONAL RAINFALL
SHOULD BE ENOUGH TO CAUSE FLOODING IN THOSE TWO COUNTIES AS WELL AS
LAWRENCE COUNTY PENNSYLVANIA WHEN IT MOVES INTO IT IN ABOUT AN HOUR.
 
 
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.
 
SITES

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 29, 10:33 PM ESTFlash Flood WarningCLEHancock, Putnam3 hr
Dec 29, 10:33 PM ESTFlash Flood WarningCLESeneca, Wyandot3 hr
Dec 29, 10:33 PM ESTFlash Flood WarningCLESandusky3 hr
Dec 29, 11:35 PM ESTFlash Flood WarningCLEFulton, Lucas3 hr
Dec 30, 12:33 AM ESTFlash Flood WarningCLEErie, Huron, Lorain4 hr
Dec 30, 12:33 AM ESTFlash Flood WarningCLECuyahoga, Medina4 hr
Dec 30, 12:33 AM ESTFlash Flood WarningCLELake4 hr
Dec 30, 1:28 AM ESTFlash Flood WarningCLESummit, Wayne4 hr
Dec 30, 1:30 AM ESTFlash Flood WarningCLEOttawa, Sandusky, Wood3 hr
Dec 30, 1:30 AM ESTFlash Flood WarningCLEHancock, Henry, Putnam3 hr
Dec 30, 1:30 AM ESTFlash Flood WarningCLESeneca, Wyandot3 hr
Dec 30, 2:34 AM ESTFlash Flood WarningCLEFulton116 min
Dec 30, 2:40 AM ESTFlash Flood WarningCLEFulton110 min
Dec 30, 2:41 AM ESTFlash Flood WarningCLEAshtabula, Geauga4 hr
Dec 30, 2:45 AM ESTFlash Flood WarningCLEMonroe, Noble, Washington5 hr
Dec 30, 2:45 AM ESTFlash Flood WarningCLECarroll, Holmes, Stark, Tuscarawas, Wayne5 hr
Dec 30, 2:45 AM ESTFlash Flood WarningCLECoshocton, Guernsey5 hr
Dec 30, 2:45 AM ESTFlash Flood WarningCLEHarrison5 hr
Dec 30, 6:56 AM ESTFlash Flood WarningCLEErie, Huron, Lorain4 hr
Dec 30, 6:56 AM ESTFlash Flood WarningCLEAshtabula, Cuyahoga, Geauga, Lake4 hr
Dec 30, 6:56 AM ESTFlash Flood WarningCLEMedina4 hr
Dec 30, 10:03 AM ESTFlash Flood WarningCLECuyahoga, Geauga, Lake, Lorain, Medina4 hr
Dec 30, 10:03 AM ESTFlash Flood WarningCLEErie, Huron4 hr
Dec 30, 10:03 AM ESTFlash Flood WarningCLEAshtabula4 hr
Dec 30, 11:24 AM ESTFlash Flood WarningCLESandusky2 hr
Dec 30, 1:27 PM ESTFlash Flood WarningCLEErie, Huron, Lorain4 hr
Dec 30, 1:27 PM ESTFlash Flood WarningCLECuyahoga, Medina4 hr
Dec 30, 1:27 PM ESTFlash Flood WarningCLEAshtabula, Geauga, Lake4 hr
Dec 30, 1:47 PM ESTFlash Flood WarningCLESandusky118 min
Dec 30, 2:54 PM ESTFlash Flood WarningCLETrumbull4 hr
Dec 30, 3:48 PM ESTFlash Flood WarningCLESandusky4 hr
Dec 30, 10:37 AM ESTFlash Flood WarningCLEMercer4 hr
Dec 30, 1:40 PM ESTFlash Flood WarningCLEForest, McKean, Venango, Warren4 hr
Dec 30, 1:40 PM ESTFlash Flood WarningCLECrawford, Erie4 hr

Nearby

Flash Flood Warnings in Ohio, 1990Flash Flood Warnings in Pennsylvania, 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.