Alert archive / Ohio / Tornado Warnings in 2024

Tornado Warning 1, NWS Cleveland, OH

February 28, 2024Knox County, Ohio

NWS Cleveland, OH issued this tornado warning at Feb 28, 2024, 5:35 AM EST for Knox County, Ohio. It was in force for 40 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: Feb 28, 2024, 5:35 AM EST (10:35 UTC)
Expired: Feb 28, 2024, 6:15 AM EST
In force: 40 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Knox County, OH

The radar

The Cleveland radar (KCLE), 131 km from the middle of the area, began a volume at 10:36 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
Feb 28, 4:40 AM EST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 10.6 hours before the alert went out and 151 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: 19 J/kg
Mixed-layer CIN: -196 J/kg
Mixed-layer LCL: 762 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

268 
WFUS51 KCLE 281035
TORCLE
OHC083-281115-
/O.NEW.KCLE.TO.W.0001.240228T1035Z-240228T1115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Cleveland OH
535 AM EST Wed Feb 28 2024

The National Weather Service in Cleveland has issued a

* Tornado Warning for...
  Knox County in north central Ohio...

* Until 615 AM EST.

* At 535 AM EST, a severe thunderstorm capable of producing a tornado
  was located over Centerburg, or 10 miles southwest of Mount Vernon,
  moving east at 35 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Mount Vernon around 545 AM EST.
  Gambier around 550 AM EST.

Other locations impacted by this tornadic thunderstorm include
Martinsburg, Bladensburg, and Gann.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4024 8248 4027 8248 4027 8274 4028 8275
      4035 8275 4035 8265 4046 8264 4050 8219
      4040 8218 4039 8219 4024 8220
TIME...MOT...LOC 1035Z 261DEG 31KT 4032 8266 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Iverson

2 follow-up statements

393 
WWUS51 KCLE 281051
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
551 AM EST Wed Feb 28 2024

OHC083-281115-
/O.CON.KCLE.TO.W.0001.000000T0000Z-240228T1115Z/
Knox OH-
551 AM EST Wed Feb 28 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 AM EST FOR
SOUTHEASTERN KNOX COUNTY...

At 550 AM EST, a severe thunderstorm capable of producing a tornado
was located near Gambier, or near Mount Vernon, moving east at 55
mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
southeastern Knox County, including the following locations...
Martinsburg, Bladensburg, and Gann.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4027 8253 4047 8251 4050 8219 4040 8218
      4039 8219 4024 8220 4024 8248 4027 8248
TIME...MOT...LOC 1050Z 263DEG 47KT 4033 8239 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Iverson

867 
WWUS51 KCLE 281111
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
611 AM EST Wed Feb 28 2024

OHC083-281120-
/O.EXP.KCLE.TO.W.0001.000000T0000Z-240228T1115Z/
Knox OH-
611 AM EST Wed Feb 28 2024

...THE TORNADO WARNING FOR SOUTHEASTERN KNOX COUNTY WILL EXPIRE AT
615 AM EST...

The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However, gusty
winds are still possible this morning.

A Tornado Watch remains in effect until 1000 AM EST for north central
Ohio.

LAT...LON 4027 8253 4047 8251 4050 8219 4040 8218
      4039 8219 4024 8220 4024 8248 4027 8248
TIME...MOT...LOC 1110Z 261DEG 31KT 4036 8217 

$$

Iverson

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 27, 10:49 PM EST	Special Weather Statement	CLE	Lucas	26 min
Feb 27, 11:17 PM EST	Special Weather Statement	CLE	Lucas	28 min
Feb 27, 11:54 PM EST	Special Weather Statement	CLE	Ottawa	36 min
Feb 28, 12:01 AM EST	Special Marine Warning	CLE		44 min
Feb 28, 12:36 AM EST	Special Marine Warning	CLE		39 min
Feb 28, 12:41 AM EST	Special Weather Statement	CLE	Cuyahoga	19 min
Feb 28, 1:07 AM EST	Special Marine Warning	CLE		83 min
Feb 28, 1:13 AM EST	Special Weather Statement	CLE	Crawford, Richland	32 min
Feb 28, 1:31 AM EST	Severe Thunderstorm Warning	CLE	Ashland, Lorain, Medina, Richland, Wayne	44 min
Feb 28, 1:33 AM EST	Special Weather Statement	CLE	Ashtabula, Lake	27 min
Feb 28, 2:02 AM EST	Special Weather Statement	CLE	Ashtabula	43 min
Feb 28, 2:13 AM EST	Severe Thunderstorm Warning	CLE	Ashtabula	62 min
Feb 28, 2:17 AM EST	Special Weather Statement	CLE	Ashland, Richland, Summit, Wayne	28 min
Feb 28, 2:45 AM EST	Special Weather Statement	CLE	Mahoning	30 min
Feb 28, 3:56 AM EST	Special Weather Statement	CLE	Lucas	34 min
Feb 28, 4:45 AM EST	Special Weather Statement	CLE	Knox, Marion, Morrow	30 min
Feb 28, 5:13 AM EST	Special Weather Statement	CLE	Holmes, Knox, Morrow	47 min
Feb 28, 5:49 AM EST	Special Weather Statement	CLE	Ashtabula, Cuyahoga, Geauga, Lake	26 min
Feb 28, 6:10 AM EST	Special Weather Statement	CLE	Holmes	50 min
Feb 28, 6:57 PM EST	Small Craft Advisory	CLE		31 hr

Nearby

Tornado Warnings in Ohio, 2024 Every tornado warning in 2024 Tornadoes in 2024

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.