Alert archive / Ohio / Flash Flood Warnings in 1998

Flash Flood Warning 11, NWS Charleston, WV

January 8, 1998Athens County, Ohio

NWS Charleston, WV issued this flash flood warning at Jan 8, 1998, 4:55 AM EST for Athens County, Ohio. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 8, 1998, 4:55 AM EST (09:55 UTC)
Expired
Jan 8, 1998, 9:00 AM EST
In force
4 hr
Issued by
NWS Charleston, WV
Area
Whole counties

County Athens County, OH

The radar

The Charleston,WV radar (KRLX), 117 km from the middle of the area, began a volume at 09:56 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 9.9 hours before the alert went out and 151 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, Cncnati-Daytn, OH at 00:00Z on 1998-01-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 35 joules per kilogram.LCLLFCEL10008507005003002001001 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, Cncnati-Daytn, OH at 00:00Z on 1998-01-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 142 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
35 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
526 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
142 m²/s²
0-3 km storm-relative helicity
126 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 KCRW 080957
FFWCRW
OHC009-081400-
 
BULLETIN
FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
455 AM EST THU JAN 8 1998
 
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  900 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN SOUTHEAST OHIO
 
   ...ATHENS COUNTY
 
AT 455 AM...WATER LEVELS CONTINUED TO RISE IN SOME AREAS OF ATHENS
COUNTY. HEAVY RAIN HAS MOVED OUT OF SOUTHEAST OHIO...ALTHOUGH SOME
LIGHT RAIN IS STILL POSSIBLE.
 
<< CALL TO ACTION >> 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. WATCH OUT FOR MUD SLIDES.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 7, 7:59 PM ESTFlash Flood WarningRLXGallia, Meigs6 hr
Jan 7, 7:59 PM ESTFlash Flood WarningRLXWashington6 hr
Jan 8, 12:58 AM ESTFlash Flood WarningRLXAthens, Morgan, Perry4 hr
Jan 8, 12:58 AM ESTFlash Flood WarningRLXJackson, Lawrence4 hr
Jan 8, 12:58 AM ESTFlash Flood WarningRLXVinton4 hr

Nearby

Flash Flood Warnings in Ohio, 1998Every flash flood warning in 1998

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; radar from the NEXRAD Level II archive.