Alert archive / Ohio / Special Weather Statements in 2021

Special Weather Statement, NWS Cleveland, OH

August 7, 2021Marion County, Ohio

NWS Cleveland, OH issued this special weather statement at Aug 7, 2021, 3:49 PM EDT for Marion 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
Aug 7, 2021, 3:49 PM EDT (19:49 UTC)
Expired
Aug 7, 2021, 4:30 PM EDT
In force
41 min
Issued by
NWS Cleveland, OH
Hail
0.50 in
Wind
40

County Marion County, OH

The radar

The Cincinnati radar (KILN), 131 km from the middle of the area, began a volume at 19:50 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, 7.8 hours before the alert went out and 129 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, Cncnati-Daytn, OH at 12:00Z on 2021-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 815 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, Cncnati-Daytn, OH at 12:00Z on 2021-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 square meters per square second.1939Sfc1 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
815 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
973 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

469 
WWUS81 KCLE 071949
SPSCLE

Special Weather Statement
National Weather Service Cleveland OH
349 PM EDT Sat Aug 7 2021
 
OHZ036-072030-
Marion OH-
349 PM EDT Sat Aug 7 2021

...A strong thunderstorm will impact portions of southwestern Marion
County through 430 PM EDT...

At 348 PM EDT, Doppler radar was tracking a strong thunderstorm near
Richwood, or 11 miles southwest of Marion, moving east at 15 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Locations impacted include...
Prospect, Waldo, Green Camp and State Route 229 at US Route 23. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 4044 8325 4050 8325 4051 8333 4057 8301
      4049 8301 4045 8302 4043 8303
TIME...MOT...LOC 1948Z 259DEG 15KT 4047 8326 

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

$$

Saunders

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 3:13 PM EDTAreal Flood AdvisoryCLEMarion3 hr
Aug 7, 4:18 PM EDTSpecial Weather StatementCLECrawford27 min
Aug 7, 6:05 PM EDTSpecial Weather StatementCLELorain25 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.