Alert archive / Ohio / Tornado Warnings in 2003

Tornado Warning 1, NWS Cleveland, OH

April 20, 2003Seneca County, Ohio

NWS Cleveland, OH issued this tornado warning at Apr 20, 2003, 6:15 PM EDT for Seneca County, Ohio. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 20, 2003, 6:15 PM EDT (22:15 UTC)
Expired: Apr 20, 2003, 6:45 PM EDT
In force: 30 min
Issued by: NWS Cleveland, OH
Area: Counties, with a storm outline in the text

County Seneca County, OH

The radar

The Cleveland radar (KCLE), 107 km from the middle of the area, began a volume at 22:15 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
Apr 20, 4:15 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 10.3 hours before the alert went out and 173 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: 41 J/kg
Mixed-layer CIN: -164 J/kg
Mixed-layer LCL: 1190 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 171 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.

399 
WFUS51 KCLE 202215
TORCLE
OHC147-202245-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
615 PM EDT SUN APR 20 2003

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* TORNADO WARNING FOR...
  SENECA COUNTY IN NORTHWEST OHIO...

* UNTIL 645 PM EDT

* AT 615 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 4 MILES NORTH OF
  TIFFIN...MOVING NORTHEAST AT 20 MPH.

* AT 615 PM EDT A TRAINED SPOTTER REPORTED A TORNADO 4 MILES NORTH OF
  TIFFIN..MOVING NORTHEAST AT 20 MPH.

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

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

LAT...LON 4123 8328 4107 8318 4113 8285 4127 8295

$$
ADAMS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 20, 5:03 PM EDT	Special Marine Warning	CLE		87 min
Apr 20, 5:27 PM EDT	Severe Thunderstorm Warning	CLE	Hancock, Wyandot	63 min
Apr 20, 5:52 PM EDT	Severe Thunderstorm Warning	CLE	Seneca	53 min
Apr 20, 5:56 PM EDT	Severe Thunderstorm Warning	CLE	Huron, Sandusky	64 min
Apr 20, 6:18 PM EDT	Severe Thunderstorm Warning	CLE	Ottawa	42 min
Apr 20, 6:21 PM EDT	Severe Thunderstorm Warning	CLE	Erie	54 min
Apr 20, 6:23 PM EDT	Special Marine Warning	CLE		2 hr
Apr 20, 6:23 PM EDT	Special Marine Warning	CLE		2 hr
Apr 20, 7:02 PM EDT	Severe Thunderstorm Warning	CLE	Lorain	43 min
Apr 20, 7:12 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Richland	48 min
Apr 20, 7:52 PM EDT	Special Marine Warning	CLE		113 min
Apr 20, 7:52 PM EDT	Special Marine Warning	CLE		113 min

Nearby

Tornado Warnings in Ohio, 2003 Every tornado warning in 2003 Tornadoes in 2003

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.