Alert archive / Ohio / Flash Flood Warnings in 1990

Flash Flood Warning 146, NWS Charleston, WV

December 30, 1990Morgan County, Ohio

NWS Charleston, WV issued this flash flood warning at Dec 30, 1990, 12:27 PM EST for Morgan County, Ohio. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Dec 30, 1990, 12:27 PM EST (17:27 UTC)
Expired
Dec 30, 1990, 3:30 PM EST
In force
3 hr
Issued by
NWS Charleston, WV
Area
Whole counties

County Morgan 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

Huntington/Tri S, WV (KHTS), launched 12:00Z, 5.5 hours before the alert went out and 150 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, Huntington/Tri S, WV 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 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Huntington/Tri S, WV at 12:00Z on 1990-12-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 482 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
NaN m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
482 m²/s²
0-3 km storm-relative helicity
463 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 KCMH 301727
FFWCMH
OHC073-163-009-115-302030-
 
BULLETIN - EBS ACTIVATION REQUESTED
SMALL STREAM FLOOD WARNING
NATIONAL WEATHER SERVICE COLUMBUS OH
1227 PM EST SUN DEC 30 1990
 
THE NATIONAL WEATHER SERVICE IN COLUMBUS HAS ISSUED A
SMALL STREAM FLOOD WARNING EFFECTIVE UNTIL  330 PM EST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH CENTRAL OHIO
          ...HOCKING...VINTON
IN SOUTHEAST OHIO
          ...ATHENS...MORGAN
 
AT 1220 PM NATIONAL WEATHER SERVICE RADAR INDICATED A LARGE AREA OF
RAIN OVER MUCH OF SOUTH-CENTRAL AND SOUTHEAST OHIO. HEAVIER RAIN WAS
INDICATED OVER HOCKING...VINTON...ATHENS...AND MORGAN COUNTIES. MORE
RAIN...HEAVY AT TIMES...WILL MOVE INTO THESE COUNTIES FROM THE WEST
AND SOUTHWEST. THIS WILL CAUSE ALREADY NEARLY BANKFULL STREAMS TO GO
INTO FLOOD. FLOODING WILL OCCUR IN LOW-LYING AND FLOOD-PRONE
AREAS...AND POSSIBLY ON SOME ROADS NEAR STREAMS.
 
 
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWA@Y.  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.
 
GROH

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, Dec 30, 11:52 AM EST, 35 minutes before
KYZ006-008-OHZ008-009-WVZ003-301645

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTINGTON WV
1145 PM EST SUN DEC 30 1990

...WIDESPREAD MODERATE RAIN AND A FEW THUNDERSTORMS IN SOUTHCENTRAL
OHIO AND NORTHEAST KENTUCKY...

AT 1145 AM EST WEATHER SERVICE RADAR SHOWED A BAND OF MODERATE RAIN
WITH EMBEDDED THUNDERSTORMS COVERING MUCH OF SOUTHCENTRAL OHIO AND A
SMALL PART OF NORTHEAST KENTUCKY. THUNDERSTORMS WERE LOCATED JUST
NORTH OF PORTSMOUTH OHIO IN SCIOTO COUNTY. THESE STORMS WERE MOVING
EAST AT ABOUT 30 MPH. THE NATIONAL WEATHER SERVICE IN HUNTINGTON HAS
NOT RECEIVED ANY REPORTS OF FLOODING WITH THESE STORMS BUT BRIEF HEAVY
DOWNPOURS WILL CAUSE SMALL STREAMS AND CREEKS TO RISE QUICKLY AND
WATER TO POND ON ROADWAYS.

BE ALERT TO APPROACHING WEATHER AND KEEP AN EYE OUT FOR RISING WATER.
DO NOT ATTEMPT TO DRIVE ACROSS FLOODED ROADWAYS AS YOUR VEHICLE COULD
BE SWEPT AWAY BY THE FORCE OF EVEN SHALLOW WATER. STAY TUNED TO NOAA
WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

END/JMH

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 30, 3:08 AM ESTFlash Flood WarningRLXDelaware, Marion, Union4 hr
Dec 30, 6:20 AM ESTFlash Flood WarningRLXMadison3 hr
Dec 30, 7:21 AM ESTFlash Flood WarningRLXDelaware, Marion, Union3 hr
Dec 30, 8:27 AM ESTFlash Flood WarningRLXFranklin, Licking, Pickaway3 hr
Dec 30, 9:22 AM ESTFlash Flood WarningRLXFayette, Madison3 hr
Dec 30, 10:41 AM ESTFlash Flood WarningRLXMuskingum3 hr
Dec 30, 10:41 AM ESTFlash Flood WarningRLXDelaware, Marion, Union3 hr
Dec 30, 10:41 AM ESTFlash Flood WarningRLXFairfield3 hr
Dec 30, 11:34 AM ESTFlash Flood WarningRLXFranklin, Licking, Pickaway3 hr
Dec 30, 11:34 AM ESTFlash Flood WarningRLXRoss3 hr
Dec 30, 11:34 AM ESTFlash Flood WarningRLXPerry3 hr
Dec 30, 12:27 PM ESTFlash Flood WarningRLXAthens, Hocking, Vinton3 hr
Dec 30, 12:40 PM ESTFlash Flood WarningRLXFayette2 hr
Dec 30, 1:45 PM ESTFlash Flood WarningRLXFayette, Madison, Pickaway, Ross4 hr
Dec 30, 1:45 PM ESTFlash Flood WarningRLXDelaware, Marion, Union4 hr
Dec 30, 1:45 PM ESTFlash Flood WarningRLXFairfield, Licking, Muskingum, Perry4 hr
Dec 30, 1:45 PM ESTFlash Flood WarningRLXFranklin4 hr
Dec 30, 3:31 PM ESTFlash Flood WarningRLXAthens, Hocking, Vinton4 hr
Dec 30, 3:31 PM ESTFlash Flood WarningRLXMorgan4 hr
Dec 30, 5:45 PM ESTFlash Flood WarningRLXFayette, Franklin, Madison, Pickaway, Union12 hr
Dec 30, 5:45 PM ESTFlash Flood WarningRLXDelaware, Marion12 hr
Dec 30, 5:45 PM ESTFlash Flood WarningRLXLicking, Muskingum, Perry12 hr
Dec 30, 5:45 PM ESTFlash Flood WarningRLXRoss12 hr
Dec 30, 5:45 PM ESTFlash Flood WarningRLXFairfield12 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.