Alert archive / Ohio / Special Weather Statements in 2021

Special Weather Statement, NWS Cleveland, OH

July 15, 2021Seneca County, Ohio

NWS Cleveland, OH issued this special weather statement at Jul 15, 2021, 6:54 PM EDT for Seneca County, Ohio. It was in force for 36 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
Jul 15, 2021, 6:54 PM EDT (22:54 UTC)
Expired
Jul 15, 2021, 7:30 PM EDT
In force
36 min
Issued by
NWS Cleveland, OH

County Seneca County, OH

The radar

The Cleveland radar (KCLE), 106 km from the middle of the area, began a volume at 22:57 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

Detroit, MI (KDTX), launched 12:00Z, 10.9 hours before the alert went out and 184 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-pSkew-T log-p diagram, Detroit, MI at 12:00Z on 2021-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 514 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 2021-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 185 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
514 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
847 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
185 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
0.4
Supercell composite
4.1

Open this sounding in Storm Lab

The text

As transmitted.

272 
WWUS81 KCLE 152254
SPSCLE

Special Weather Statement
National Weather Service Cleveland OH
654 PM EDT Thu Jul 15 2021

OHZ018-152330-
Seneca-
654 PM EDT Thu Jul 15 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN SENECA COUNTY...

At 653 PM EDT, a strong thunderstorm was located near Tiffin, moving
east at 25 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Tiffin, Bloomville, Attica, Republic and Bascom. 

If outdoors, consider seeking shelter inside a building.

LAT...LON 4120 8290 4100 8286 4099 8308 4100 8327
      4114 8329
TIME...MOT...LOC 2253Z 273DEG 21KT 4107 8320 

$$

Maines

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 3:03 PM EDTSpecial Weather StatementCLELucas27 min
Jul 15, 3:16 PM EDTSpecial Marine WarningCLE89 min
Jul 15, 5:14 PM EDTSpecial Marine WarningCLE91 min
Jul 15, 5:25 PM EDTSpecial Weather StatementCLEKnox35 min
Jul 15, 6:01 PM EDTSpecial Weather StatementCLEErie29 min
Jul 15, 6:48 PM EDTSpecial Weather StatementCLELake27 min
Jul 15, 6:49 PM EDTSpecial Marine WarningCLE75 min
Jul 15, 6:56 PM EDTSevere Thunderstorm WarningCLEAshtabula, Geauga, Lake, Trumbull49 min
Jul 15, 7:37 PM EDTSevere Thunderstorm WarningCLEAshtabula38 min
Jul 15, 7:56 PM EDTSpecial Weather StatementCLEPortage, Trumbull49 min
Jul 15, 7:27 PM EDTSpecial Weather StatementCLEErie33 min

Nearby

Special Weather Statements in Ohio, 2021Every 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.