Alert archive / Ohio / Tornado Watches in 2000

Tornado Watch 798

November 9, 20007 counties in Kentucky; 27 counties in Ohio

The Storm Prediction Center issued this tornado watch at Nov 9, 2000, 4:00 PM EST for 7 counties in Kentucky; 27 counties in Ohio. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Nov 9, 2000, 4:00 PM EST (21:00 UTC)
Expired
Nov 9, 2000, 9:00 PM EST
In force
5 hr
Issued by
the Storm Prediction Center
All 34 counties

Boone County, KY, Bracken County, KY, Campbell County, KY, Gallatin County, KY, Grant County, KY, Kenton County, KY, Pendleton County, KY, Adams County, OH, Athens County, OH, Brown County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Guernsey County, OH, Hamilton County, OH, Highland County, OH, Hocking County, OH, Jackson County, OH, Licking County, OH, Madison County, OH, Morgan County, OH, Muskingum County, OH, Perry County, OH, Pickaway County, OH, Pike County, OH, Ross County, OH, Scioto County, OH, Vinton County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 26 km from the middle of the area, began a volume at 21:01 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.

Warnings issued inside it

22 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Nov 9, 4:05 PM ESTSevere Thunderstorm WarningILNCampbell, Kenton, Pendleton40 min
Nov 9, 4:05 PM ESTSevere Thunderstorm WarningILNBoone40 min
Nov 9, 4:23 PM ESTSevere Thunderstorm WarningILNBracken67 min
Nov 9, 4:23 PM ESTSevere Thunderstorm WarningILNClermont, Hamilton67 min
Nov 9, 4:45 PM ESTSevere Thunderstorm WarningILNAdams, Brown60 min
Nov 9, 4:50 PM ESTSevere Thunderstorm WarningILNButler, Warren55 min
Nov 9, 4:59 PM ESTTornado WarningILNHamilton31 min
Nov 9, 5:06 PM ESTTornado WarningILNAdams54 min
Nov 9, 5:09 PM ESTSevere Thunderstorm WarningILNHighland66 min
Nov 9, 5:09 PM ESTSevere Thunderstorm WarningILNScioto66 min
Nov 9, 5:13 PM ESTSevere Thunderstorm WarningILNClinton62 min
Nov 9, 5:21 PM ESTSevere Thunderstorm WarningILNPike54 min
Nov 9, 5:23 PM ESTTornado WarningILNWarren37 min
Nov 9, 5:28 PM ESTTornado WarningILNHighland47 min
Nov 9, 5:32 PM ESTSevere Thunderstorm WarningILNGreene43 min
Nov 9, 5:34 PM ESTSevere Thunderstorm WarningILNFayette, Ross56 min
Nov 9, 5:43 PM ESTSevere Thunderstorm WarningILNClark, Miami62 min
Nov 9, 5:59 PM ESTSevere Thunderstorm WarningILNHocking, Pickaway61 min
Nov 9, 5:59 PM ESTSevere Thunderstorm WarningILNMadison61 min
Nov 9, 6:19 PM ESTSevere Thunderstorm WarningILNFairfield56 min
Nov 9, 6:26 PM ESTSevere Thunderstorm WarningILNFranklin64 min
Nov 9, 7:15 PM ESTSevere Thunderstorm WarningILNDelaware, Licking60 min

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.0 hours before the alert went out and 25 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 12:00Z on 2000-11-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 148 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 12:00Z on 2000-11-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 202 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
148 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
532 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
202 m²/s²
0-3 km storm-relative helicity
215 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

806 
WWUS9 KMKC 092048
SEL8  

SEL8  
MKC WW 092045
OHZ000-100200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 798
STORM PREDICTION CENTER NORMAN OK
345 PM EST THU NOV 9 2000

THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

   SOUTHERN OHIO                               

EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 400 PM UNTIL 900
PM EST.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO
80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 70 STATUTE MILES EAST AND WEST
OF A LINE FROM 45 MILES SOUTHEAST OF CINCINNATI OHIO TO 20 MILES
NORTHEAST OF COLUMBUS OHIO.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. 
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...  CONTINUE...WW 794...WW 795...WW
796...WW 797...

DISCUSSION...INTENSE SQUALL LINE MOVING NEWD FROM CENTRAL KY INTO
SRN OH.  WITH APPROACH OF VIGOROUS VORT MAX/MID LEVEL JET...SHEAR
PROFILES WILL CONTINUE TO RESULT IN ISOLATED SUPERCELLS/TORNADOS
ALONG AND AHEAD OF SQUALL LINE.


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH...EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. 
MEAN STORM MOTION VECTOR 22040.


...HALES

401,0811 383,0823 383,0850 401,0835

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 9, 12:00 PM ESTTornado WatchSPCAdair, Allen, Barren, Breckinridge, Bullitt, Butler and 28 more5 hr
Nov 9, 2:00 PM ESTTornado WatchSPCCarroll, Trimble5 hr
Nov 9, 3:00 PM ESTTornado WatchSPCAnderson, Bath, Bell, Bourbon, Boyle, Bracken and 49 more5 hr
Nov 9, 5:45 PM ESTTornado WatchSPCBoyd, Carter, Elliott, Floyd, Greenup, Harlan and 7 more3 hr

Nearby

Tornado Watches in Ohio, 2000Tornado Watches in Kentucky, 2000Every tornado watch in 2000

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.