Alert archive / Ohio / Special Weather Statements in 2021

Special Weather Statement, NWS Cleveland, OH

June 29, 2021Knox County, Ohio

NWS Cleveland, OH issued this special weather statement at Jun 29, 2021, 4:49 PM EDT for Knox County, Ohio. It was in force for 41 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: Jun 29, 2021, 4:49 PM EDT (20:49 UTC)
Expired: Jun 29, 2021, 5:30 PM EDT
In force: 41 min
Issued by: NWS Cleveland, OH

County Knox County, OH

The radar

The Cleveland radar (KCLE), 133 km from the middle of the area, began a volume at 20:50 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 nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.8 hours before the alert went out and 145 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: 1541 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 1248 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 7 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

439 
WWUS81 KCLE 292049
SPSCLE

Special Weather Statement
National Weather Service Cleveland OH
449 PM EDT Tue Jun 29 2021

OHZ037-047-292130-
Morrow-Knox-
449 PM EDT Tue Jun 29 2021

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN MORROW AND
KNOX COUNTIES...

At 448 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Sunbury to near Fredericktown.
Movement was northeast at 15 mph.

Wind gusts up to 55 mph and pea size hail are possible with these 
storms.

Locations impacted include...
Mount Vernon, Fredericktown, Gambier, Utica, Centerburg,
Chesterville, Sparta, Waterford, Marengo, Fulton, Martinsburg and
North Liberty.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 4024 8248 4027 8248 4027 8274 4028 8275
      4035 8275 4036 8286 4052 8280 4055 8258
      4055 8233 4024 8233
TIME...MOT...LOC 2048Z 238DEG 13KT 4020 8282 4044 8260 

$$

Jaszka

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 12:31 PM EDT	Special Weather Statement	CLE	Lake	44 min
Jun 29, 1:34 PM EDT	Special Weather Statement	CLE	Lake	41 min
Jun 29, 1:46 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula, Geauga, Lake	44 min
Jun 29, 1:58 PM EDT	Special Weather Statement	CLE	Ashtabula	47 min
Jun 29, 2:01 PM EDT	Special Weather Statement	CLE	Crawford	29 min
Jun 29, 2:11 PM EDT	Areal Flood Advisory	CLE	Geauga, Lake	3 hr
Jun 29, 2:18 PM EDT	Special Weather Statement	CLE	Marion	27 min
Jun 29, 2:30 PM EDT	Special Weather Statement	CLE	Lake	45 min
Jun 29, 2:47 PM EDT	Special Weather Statement	CLE	Erie	43 min
Jun 29, 2:51 PM EDT	Special Weather Statement	CLE	Crawford	24 min
Jun 29, 3:08 PM EDT	Special Weather Statement	CLE	Cuyahoga	52 min
Jun 29, 3:22 PM EDT	Special Weather Statement	CLE	Lorain	53 min
Jun 29, 3:27 PM EDT	Special Weather Statement	CLE	Crawford	48 min
Jun 29, 3:28 PM EDT	Special Marine Warning	CLE		2 hr
Jun 29, 3:29 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Huron, Richland, Seneca, Wyandot	46 min
Jun 29, 3:55 PM EDT	Severe Thunderstorm Warning	CLE	Lorain, Medina	50 min
Jun 29, 3:58 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Seneca, Wyandot	47 min
Jun 29, 4:06 PM EDT	Special Marine Warning	CLE		114 min
Jun 29, 4:10 PM EDT	Areal Flood Advisory	CLE	Crawford, Wyandot	3 hr
Jun 29, 4:14 PM EDT	Special Weather Statement	CLE	Morrow	46 min
Jun 29, 4:40 PM EDT	Areal Flood Advisory	CLE	Morrow	3 hr
Jun 29, 4:45 PM EDT	Special Weather Statement	CLE	Wood	45 min
Jun 29, 4:49 PM EDT	Special Weather Statement	CLE	Medina	41 min
Jun 29, 5:06 PM EDT	Severe Thunderstorm Warning	CLE	Lorain, Medina	39 min
Jun 29, 5:09 PM EDT	Special Weather Statement	CLE	Ashland, Knox	51 min
Jun 29, 5:24 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Holmes, Knox, Wayne	51 min
Jun 29, 5:28 PM EDT	Special Marine Warning	CLE		92 min
Jun 29, 5:35 PM EDT	Special Weather Statement	CLE	Wyandot	40 min
Jun 29, 5:42 PM EDT	Severe Thunderstorm Warning	CLE	Medina, Summit, Wayne	33 min
Jun 29, 6:10 PM EDT	Special Weather Statement	CLE	Sandusky	50 min
Jun 29, 6:13 PM EDT	Special Marine Warning	CLE		71 min
Jun 29, 6:36 PM EDT	Special Weather Statement	CLE	Mahoning, Portage, Trumbull	54 min
Jun 29, 6:36 PM EDT	Severe Thunderstorm Warning	CLE	Wyandot	39 min
Jun 29, 6:42 PM EDT	Severe Thunderstorm Warning	CLE	Mahoning, Portage, Trumbull	63 min
Jun 29, 6:43 PM EDT	Areal Flood Advisory	CLE	Wyandot	3 hr
Jun 29, 7:05 PM EDT	Areal Flood Advisory	CLE	Hancock, Ottawa, Sandusky, Seneca, Wood	3 hr
Jun 29, 7:05 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Huron, Richland, Seneca, Wyandot	27 min
Jun 29, 7:29 PM EDT	Flash Flood Warning	CLE	Trumbull	3 hr
Jun 29, 7:56 PM EDT	Special Marine Warning	CLE		94 min

Nearby

Special Weather Statements in Ohio, 2021 Every special weather statement in 2021

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.