Alert archive / Ohio / Special Weather Statements in 2021

Special Weather Statement, NWS Wilmington, OH

June 30, 2021Delaware County, Ohio

NWS Wilmington, OH issued this special weather statement at Jun 30, 2021, 11:20 AM EDT for Delaware County, Ohio. It was in force for 25 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 30, 2021, 11:20 AM EDT (15:20 UTC)
Expired: Jun 30, 2021, 11:45 AM EDT
In force: 25 min
Issued by: NWS Wilmington, OH

County Delaware County, OH

The radar

The Cincinnati radar (KILN), 129 km from the middle of the area, began a volume at 15:21 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, 3.3 hours before the alert went out and 127 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: 608 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 1164 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: -19 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wilmington, OH wrote its last area forecast discussion before this special weather statement went out at Jun 30, 10:35 AM EDT, 45 minutes earlier.

Area forecast discussion, Jun 30, 10:35 AM EDT, 45 minutes before

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Hazardous weather outlook, Jun 30, 4:05 AM EDT, 7 hours 15 minutes before

Hazardous Weather Outlook
National Weather Service Wilmington OH
405 AM EDT Wed Jun 30 2021

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-010815-
Wayne-Fayette IN-Union IN-Franklin IN-Ripley-Dearborn-Ohio-
Switzerland-Carroll-Gallatin-Boone-Kenton-Campbell-Owen-Grant-
Pendleton-Bracken-Robertson-Mason-Lewis-Hardin-Mercer-Auglaize-Darke-
Shelby-Logan-Union OH-Delaware-Miami-Champaign-Clark-Madison-
Franklin OH-Licking-Preble-Montgomery-Greene-Fayette OH-Pickaway-
Fairfield-Butler-Warren-Clinton-Ross-Hocking-Hamilton-Clermont-Brown-
Highland-Adams-Pike-Scioto-
405 AM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for East Central Indiana,
Southeast Indiana, Northeast Kentucky, Northern Kentucky, Central
Ohio, South Central Ohio, Southwest Ohio and West Central Ohio.

.DAY ONE...Today and tonight.

Showers and thunderstorms are likely today. A few of the storms may
become strong to severe during the afternoon and evening. The primary
threat is strong to damaging winds. Locally heavy rainfall will also
be possible.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Locally heavy rainfall and strong wind gusts may accompany
thunderstorms on Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Jun 30, 9:40 AM EDT, 1 hour 40 minutes before

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Local storm report, Jun 30, 10:11 AM EDT, 1 hour 9 minutes before

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Special weather statement, Jun 30, 11:20 AM EDT, 0 minutes before

Special Weather Statement
National Weather Service Wilmington OH
1120 AM EDT Wed Jun 30 2021

OHZ046-055-056-301545-
Licking OH-Delaware OH-Franklin OH-
1120 AM EDT Wed Jun 30 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN DELAWARE AND
NORTHWESTERN LICKING COUNTIES UNTIL 1145 AM EDT...

At 1119 AM EDT, radar indicated a strong thunderstorm over Sunbury,
moving northeast at 35 mph.

STORM HAZARDS INCLUDE...
Winds to 45 mph...
Very heavy rain...

Locations impacted include...
Westerville, Sunbury, Galena, Hartford, Interstate 71 at US Route
36/State Route 37, Alum Creek State Park, Center Village and Olive
Green.

This includes I-71 in Ohio between mile markers 124 and 136.

Water will pond on roads and may quickly fill roadside ditches and
small streams.

To report hazardous weather conditions, go to our website at
weather.gov/iln and submit your report via social media, when you can
do so safely.

LAT...LON 4010 8290 4026 8302 4036 8284 4035 8274
      4028 8275 4027 8248 4026 8248
TIME...MOT...LOC 1519Z 243DEG 32KT 4021 8286

JDR

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 8:10 PM EDT	Special Weather Statement	ILN	Warren	35 min
Jun 29, 8:10 PM EDT	Special Weather Statement	ILN	Clinton	35 min
Jun 29, 9:42 PM EDT	Special Weather Statement	ILN	Madison	33 min
Jun 30, 8:18 AM EDT	Areal Flood Advisory	ILN	Montgomery, Preble	2 hr
Jun 30, 11:50 AM EDT	Special Weather Statement	ILN	Licking	10 min
Jun 30, 4:26 PM EDT	Special Weather Statement	ILN	Hocking	34 min
Jun 30, 5:13 PM EDT	Special Weather Statement	ILN	Butler	32 min
Jun 30, 5:15 PM EDT	Special Weather Statement	ILN	Warren	30 min
Jun 30, 5:41 PM EDT	Special Weather Statement	ILN	Ross	34 min
Jun 30, 6:25 PM EDT	Special Weather Statement	ILN	Highland	35 min
Jun 30, 6:33 PM EDT	Special Weather Statement	ILN	Hamilton	27 min
Jun 30, 6:42 PM EDT	Areal Flood Advisory	ILN	Hamilton	106 min
Jun 30, 6:43 PM EDT	Special Weather Statement	ILN	Highland	32 min
Jun 30, 6:56 PM EDT	Special Weather Statement	ILN	Clermont	34 min
Jun 30, 7:49 PM EDT	Special Weather Statement	ILN	Pike	26 min
Jun 29, 8:14 PM EDT	Areal Flood Advisory	ILN	Dearborn, Ripley	3 hr
Jun 29, 8:33 PM EDT	Special Weather Statement	ILN	Dearborn, Ripley	27 min
Jun 29, 9:52 PM EDT	Special Weather Statement	ILN	Fayette, Franklin, Union	23 min
Jun 29, 10:13 PM EDT	Special Weather Statement	ILN	Fayette	32 min
Jun 29, 10:40 PM EDT	Special Weather Statement	ILN	Fayette, Wayne	35 min
Jun 30, 12:20 AM EDT	Areal Flood Advisory	ILN	Ripley	3 hr

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.