Alert archive / Ohio / Tornado Warnings in 1999

Tornado Warning 19, NWS Cleveland, OH

July 29, 1999Cuyahoga County, Summit County, Ohio

NWS Cleveland, OH issued this tornado warning at Jul 29, 1999, 12:05 AM EDT for Cuyahoga County, Summit County, Ohio. It was in force for 40 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: Jul 29, 1999, 12:05 AM EDT (04:05 UTC)
Expired: Jul 29, 1999, 12:45 AM EDT
In force: 40 min
Issued by: NWS Cleveland, OH
Area: Whole counties

Counties Cuyahoga County, OH, Summit County, OH

The radar

The Cleveland radar (KCLE), 25 km from the middle of the area, began a volume at 04:08 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
Jul 29, 12:08 AM EDT	Thunderstorm Wind	Northfield, OH	Many trees downed across the northern portion of the county. A large tree in downtown Twinsburg landed on a set of bleachers and destroyed them. Two trees fell on homes in Macedonia and two trucks in Macedonia was also severely damaged by fallen trees. Fiv
Jul 29, 12:10 AM EDT	Hail 0.75	Twinsburg, OH

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
Jul 28, 10:30 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 4.1 hours before the alert went out and 161 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: 180 J/kg
Mixed-layer CIN: -196 J/kg
Mixed-layer LCL: 952 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 94 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCLE 290406
TORCLE
OHC035-153-290445-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
1205 AM EDT THU JUL 29 1999

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* TORNADO WARNING FOR...
  CUYAHOGA COUNTY IN OHIO
  SUMMIT COUNTY IN OHIO

* UNTIL 1245 AM EDT

* AT 1205 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 2 MILES WEST OF
  MACEDONIA...OR ABOUT 14 MILES SOUTHEAST OF CLEVELAND...MOVING
  SOUTHEAST AT 40 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  TWINSBURG
  TALLMADGE
  MOGADORE
  MACEDONIA
  HUDSON
  CUYAHOGA FALLS

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
Jul 28, 11:05 PM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga, Lake	60 min
Jul 28, 11:05 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula	60 min
Jul 28, 11:31 PM EDT	Severe Thunderstorm Warning	CLE	Geauga	59 min
Jul 28, 11:38 PM EDT	Severe Thunderstorm Warning	CLE	Lorain	52 min
Jul 28, 11:51 PM EDT	Severe Thunderstorm Warning	CLE	Portage, Trumbull	64 min
Jul 29, 12:02 AM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga, Summit	63 min
Jul 29, 12:35 AM EDT	Severe Thunderstorm Warning	CLE	Mahoning, Stark	65 min

Nearby

Tornado Warnings in Ohio, 1999 Every tornado warning in 1999 Tornadoes in 1999

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.