Alert archive / Ohio / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 97, NWS Cleveland, OH

October 24, 2001Knox County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Oct 24, 2001, 10:03 PM EDT for Knox County, Ohio. It was in force for 42 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Oct 24, 2001, 10:03 PM EDT (02:03 UTC)
Expired: Oct 24, 2001, 10:45 PM EDT
In force: 42 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 02:02 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.

What was reported inside it

Time	Report	Where	Remark
Oct 24, 10:21 PM EDT	Thunderstorm Wind	Mt Vernon, OH	Thunderstorm winds downed many trees east of Mount Vernon.
Oct 24, 10:30 PM EDT	Thunderstorm Wind	Danville, OH	Thunderstorm winds destroyed a three story 30 by 50 foot barn. A power pole nearby fell on a car and severely damaged it.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
Oct 24, 6:45 PM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 2.1 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: 392 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1130 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 268 m²/s²
0-3 km storm-relative helicity: 330 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 2.7

Open this sounding in Storm Lab

The text

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

491 
WUUS51 KCLE 250203
SVRCLE
OHC083-250245-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
1003 PM EDT WED OCT 24 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  KNOX COUNTY IN OHIO...

* UNTIL 1045 PM EDT

* AT 1003 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 9 MILES SOUTHWEST OF CENTERBURG...OR ABOUT 12
  MILES EAST OF DELAWARE...MOVING NORTHEAST AT 55 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  CENTERBURG
  FREDERICKTOWN
  GAMBIER
  MOUNT VERNON

DAMAGING WINDS IN EXCESS OF 58 MPH ARE EXPECTED FROM THIS STORM. SEEK
SHELTER IN A STURDY STRUCTURE UNTIL THE STORM HAS PASSED.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN CLEVELAND.

$$

GARNET

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 24, 8:13 PM EDT	Severe Thunderstorm Warning	CLE	Hancock, Wood	62 min
Oct 24, 8:22 PM EDT	Severe Thunderstorm Warning	CLE	Lucas	38 min
Oct 24, 8:24 PM EDT	Special Marine Warning	CLE		111 min
Oct 24, 8:24 PM EDT	Special Marine Warning	CLE		111 min
Oct 24, 8:41 PM EDT	Severe Thunderstorm Warning	CLE	Ottawa, Sandusky	64 min
Oct 24, 8:41 PM EDT	Severe Thunderstorm Warning	CLE	Seneca	64 min
Oct 24, 9:10 PM EDT	Severe Thunderstorm Warning	CLE	Marion	50 min
Oct 24, 9:36 PM EDT	Severe Thunderstorm Warning	CLE	Erie	39 min
Oct 24, 9:38 PM EDT	Severe Thunderstorm Warning	CLE	Huron	52 min
Oct 24, 9:43 PM EDT	Special Marine Warning	CLE		2 hr
Oct 24, 9:43 PM EDT	Special Marine Warning	CLE		2 hr
Oct 24, 9:43 PM EDT	Special Marine Warning	CLE		2 hr
Oct 24, 9:43 PM EDT	Special Marine Warning	CLE		2 hr
Oct 24, 9:43 PM EDT	Special Marine Warning	CLE		2 hr
Oct 24, 9:43 PM EDT	Special Marine Warning	CLE		2 hr
Oct 24, 9:51 PM EDT	Tornado Warning	CLE	Ashtabula, Geauga	39 min
Oct 24, 10:22 PM EDT	Severe Thunderstorm Warning	CLE	Ashland	23 min
Oct 24, 10:28 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula	47 min
Oct 24, 10:35 PM EDT	Severe Thunderstorm Warning	CLE	Holmes, Wayne	40 min
Oct 24, 10:41 PM EDT	Severe Thunderstorm Warning	CLE	Medina	49 min
Oct 24, 11:02 PM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga	43 min
Oct 24, 11:05 PM EDT	Severe Thunderstorm Warning	CLE	Stark, Summit	25 min
Oct 24, 11:29 PM EDT	Severe Thunderstorm Warning	CLE	Geauga, Portage	46 min
Oct 24, 11:29 PM EDT	Severe Thunderstorm Warning	CLE	Stark	46 min
Oct 24, 11:52 PM EDT	Special Marine Warning	CLE		113 min
Oct 24, 11:52 PM EDT	Special Marine Warning	CLE		113 min
Oct 24, 11:52 PM EDT	Special Marine Warning	CLE		113 min
Oct 24, 11:52 PM EDT	Special Marine Warning	CLE		113 min
Oct 24, 11:57 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula, Mahoning, Trumbull	48 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2001 Every severe thunderstorm warning in 2001

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.