Alert archive / Ohio / Tornado Warnings in 2002

Tornado Warning 20, NWS Cleveland, OH

May 31, 2002Knox County, Ohio

NWS Cleveland, OH issued this tornado warning at May 31, 2002, 6:10 PM EDT for Knox County, Ohio. It was in force for 20 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: May 31, 2002, 6:10 PM EDT (22:10 UTC)
Expired: May 31, 2002, 6:30 PM EDT
In force: 20 min
Issued by: NWS Cleveland, OH
Area: Whole counties

County Knox County, OH

The radar

The Cleveland radar (KCLE), 122 km from the middle of the area, began a volume at 22:11 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.

Issued	Product	Office	Lasted
May 31, 5:00 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.2 hours before the alert went out and 160 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 663 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 885 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 50 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

000 
WFUS51 KCLE 312210
TORCLE
OHC083-312230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
610 PM EDT FRI MAY 31 2002

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* TORNADO WARNING FOR...
  KNOX COUNTY IN OHIO...

* UNTIL 630 PM EDT

* AT 610 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 4 MILES
  NORTHEAST OF MARTINSBURG...OR ABOUT 11 MILES SOUTHEAST OF MOUNT
  VERNON...MOVING SOUTHEAST AT 30 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  MARTINSBURG

THIS WARNING REPLACES THE SEVERE THUNDERSTORM WARNING PREVIOUSLY
ISSUED FOR THE WARNED AREA.

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 8:08 PM EDT	Special Marine Warning	CLE		2 hr
May 31, 9:25 AM EDT	Special Marine Warning	CLE		2 hr
May 31, 4:01 PM EDT	Severe Thunderstorm Warning	CLE	Medina, Summit	59 min
May 31, 4:48 PM EDT	Severe Thunderstorm Warning	CLE	Mahoning	57 min
May 31, 4:57 PM EDT	Severe Thunderstorm Warning	CLE	Portage, Summit	63 min
May 31, 4:59 PM EDT	Severe Thunderstorm Warning	CLE	Stark	61 min
May 31, 5:02 PM EDT	Severe Thunderstorm Warning	CLE	Morrow, Richland	58 min
May 31, 5:13 PM EDT	Tornado Warning	CLE	Stark	47 min
May 31, 5:17 PM EDT	Severe Thunderstorm Warning	CLE	Knox	58 min
May 31, 5:22 PM EDT	Severe Thunderstorm Warning	CLE	Ashland	38 min
May 31, 5:34 PM EDT	Severe Thunderstorm Warning	CLE	Holmes	56 min
May 31, 6:14 PM EDT	Severe Thunderstorm Warning	CLE	Stark	31 min

Nearby

Tornado Warnings in Ohio, 2002 Every tornado warning in 2002 Tornadoes in 2002

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.