Alert archive / Ohio / Tornado Warnings in 2000

Tornado Warning 1, NWS Wilmington, OH

April 20, 2000Montgomery County, Ohio

NWS Wilmington, OH issued this tornado warning at Apr 20, 2000, 6:24 PM EDT for Montgomery County, Ohio. It was in force for 31 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
Apr 20, 2000, 6:24 PM EDT (22:24 UTC)
Expired
Apr 20, 2000, 6:55 PM EDT
In force
31 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Montgomery County, OH

The radar

The Cincinnati radar (KILN), 55 km from the middle of the area, began a volume at 22:27 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 20, 3:15 PM EDTTornado WatchSPC5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.4 hours before the alert went out and 55 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 2000-04-20Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2000-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 200 square meters per square second.19395878Sfc1 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
1769 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
200 m²/s²
0-3 km storm-relative helicity
167 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.

709 
WFUS51 KILN 202224
TORILN
OHC113-202255-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
624 PM EDT THU APR 20 2000

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* TORNADO WARNING FOR...
  MONTGOMERY COUNTY IN WEST CENTRAL OHIO.

* UNTIL 655 PM EDT

* AT 621 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A DEVELOPING TORNADO IN THE VICINITY OF DAYTON... MOVING
  NORTHEAST AT 55 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  HUBER HEIGHTS AT 630 PM EDT .

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR

.END/AR

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 20, 3:13 PM EDTSevere Thunderstorm WarningILNWarren47 min
Apr 20, 5:33 PM EDTSevere Thunderstorm WarningILNMercer47 min
Apr 20, 5:39 PM EDTSevere Thunderstorm WarningILNDarke, Preble46 min
Apr 20, 5:55 PM EDTSevere Thunderstorm WarningILNButler65 min
Apr 20, 6:11 PM EDTSevere Thunderstorm WarningILNMiami, Shelby44 min
Apr 20, 6:11 PM EDTSevere Thunderstorm WarningILNMontgomery44 min
Apr 20, 6:18 PM EDTSevere Thunderstorm WarningILNHamilton62 min
Apr 20, 6:38 PM EDTTornado WarningILNClark42 min
Apr 20, 6:42 PM EDTSevere Thunderstorm WarningILNWarren63 min
Apr 20, 6:51 PM EDTSevere Thunderstorm WarningILNChampaign49 min
Apr 20, 6:56 PM EDTSevere Thunderstorm WarningILNHardin34 min
Apr 20, 6:59 PM EDTSevere Thunderstorm WarningILNGreene46 min
Apr 20, 7:10 PM EDTSevere Thunderstorm WarningILNClinton60 min
Apr 20, 7:19 PM EDTSevere Thunderstorm WarningILNClermont46 min
Apr 20, 7:27 PM EDTSevere Thunderstorm WarningILNFayette, Madison63 min
Apr 20, 7:34 PM EDTSevere Thunderstorm WarningILNBrown61 min
Apr 20, 7:45 PM EDTSevere Thunderstorm WarningILNFranklin50 min

Nearby

Tornado Warnings in Ohio, 2000Every tornado warning in 2000Tornadoes 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.