Alert archive / Ohio / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 252, NWS Wilmington, OH

August 18, 2000Brown County, Ohio; Mason County, Kentucky

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 18, 2000, 12:28 AM EDT for Brown County, Ohio; Mason County, Kentucky. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 18, 2000, 12:28 AM EDT (04:28 UTC)
Expired
Aug 18, 2000, 1:00 AM EDT
In force
32 min
Issued by
NWS Wilmington, OH
Area
Whole counties

Counties Mason County, KY, Brown County, OH

The radar

The Cincinnati radar (KILN), 73 km from the middle of the area, began a volume at 04:29 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, 4.5 hours before the alert went out and 74 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 2000-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 349 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2000-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 482 square meters per square second.193958Sfc1 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
349 J/kg
Mixed-layer CIN
-239 J/kg
Mixed-layer LCL
1036 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
482 m²/s²
0-3 km storm-relative helicity
540 m²/s²
Significant tornado parameter
0.0
Supercell composite
8.0

Open this sounding in Storm Lab

The text

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

415 
WUUS51 KILN 180430
SVRILN
KYC161-OHC015-180500-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
1228 AM EDT FRI AUG 18 2000

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MASON COUNTY IN NORTHERN KENTUCKY...
  BROWN COUNTY IN SOUTHWEST OHIO...

* UNTIL 100 AM EDT...

* AT 1228 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER ABERDEEN...OR ABOUT 4 MILES NORTH OF      
  MAYSVILLE...MOVING EAST AT 30 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  SARDINIA...
  RIPLEY...
  ABERDEEN...
  WASHINGTON...
  MAYSVILLE...
  LEWISBURG...

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS AND LARGE HAIL.

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM CREEK BEDS AND OTHER FLOOD PRONE AREAS. REMEMBER...A SEVERE
THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS IN
EXCESS OF 55 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 17, 10:21 PM EDTSevere Thunderstorm WarningILNHamilton54 min
Aug 17, 11:22 PM EDTSevere Thunderstorm WarningILNClermont38 min
Aug 17, 10:38 PM EDTSevere Thunderstorm WarningILNKenton52 min
Aug 17, 10:59 PM EDTSevere Thunderstorm WarningILNCampbell46 min
Aug 17, 11:05 PM EDTSevere Thunderstorm WarningILNCarroll, Gallatin40 min
Aug 17, 11:15 PM EDTSevere Thunderstorm WarningILNGrant, Owen60 min
Aug 17, 11:42 PM EDTSevere Thunderstorm WarningILNPendleton48 min
Aug 18, 12:03 AM EDTSevere Thunderstorm WarningILNRobertson37 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2000Severe Thunderstorm Warnings in Kentucky, 2000Every severe thunderstorm warning 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.