Alert archive / Ohio / Special Weather Statements in 2021

Special Weather Statement, NWS Wilmington, OH

July 16, 2021Montgomery County, Warren County, Ohio

NWS Wilmington, OH issued this special weather statement at Jul 16, 2021, 9:20 PM EDT for Montgomery County, Warren 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: Jul 16, 2021, 9:20 PM EDT (01:20 UTC)
Expired: Jul 16, 2021, 9:45 PM EDT
In force: 25 min
Issued by: NWS Wilmington, OH

Counties Montgomery County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 48 km from the middle of the area, began a volume at 01:23 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 00:00Z, 1.3 hours before the alert went out and 50 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: 163 J/kg
Mixed-layer CIN: -108 J/kg
Mixed-layer LCL: 1176 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 157 m²/s²
0-3 km storm-relative helicity: 168 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

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 Jul 16, 7:38 PM EDT, 1 hour 42 minutes earlier.

Area forecast discussion, Jul 16, 7:38 PM EDT, 1 hour 42 minutes before

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Hazardous weather outlook, Jul 16, 1:46 PM EDT, 7 hours 34 minutes before

Hazardous Weather Outlook
National Weather Service Wilmington OH
146 PM EDT Fri Jul 16 2021

KYZ089-090-094>100-OHZ064-065-073-074-079>082-088-171800-
Carroll-Gallatin-Owen-Grant-Pendleton-Bracken-Robertson-Mason-Lewis-
Pickaway-Fairfield-Ross-Hocking-Brown-Highland-Adams-Pike-Scioto-
146 PM EDT Fri Jul 16 2021

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

.DAY ONE...This afternoon and tonight.

Some storms may contain heavy rain which will lead to the potential
for localized flooding this afternoon and overnight. An isolated
strong or severe storm may be possible this afternoon into this
evening with damaging winds being the main threat.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Heavy rain will lead to the potential for localized flooding
Saturday.

For the period Sunday through Thursday the probability for
widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

INZ050-058-059-066-073>075-080-KYZ091>093-OHZ026-034-035-042>046-
051>056-060>063-070>072-077-078-171800-
Wayne-Fayette IN-Union IN-Franklin IN-Ripley-Dearborn-Ohio-
Switzerland-Boone-Kenton-Campbell-Hardin-Mercer-Auglaize-Darke-
Shelby-Logan-Union OH-Delaware-Miami-Champaign-Clark-Madison-
Franklin OH-Licking-Preble-Montgomery-Greene-Fayette OH-Butler-
Warren-Clinton-Hamilton-Clermont-
146 PM EDT Fri Jul 16 2021

...FLASH FLOOD WATCH IN EFFECT THROUGH SATURDAY AFTERNOON...

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

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

Also, an isolated strong or severe storm may be possible this
afternoon into this evening with damaging winds being the main
threat.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

For the period Sunday through Thursday the probability for
widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jul 16, 6:27 PM EDT, 2 hours 53 minutes before

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Special weather statement, Jul 16, 6:31 PM EDT, 2 hours 49 minutes before

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Special weather statement, Jul 16, 7:12 PM EDT, 2 hours 8 minutes before

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Local storm report, Jul 16, 7:19 PM EDT, 2 hours 1 minute before

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Special weather statement, Jul 16, 8:54 PM EDT, 26 minutes before

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Special weather statement, Jul 16, 9:20 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 8:25 PM EDT	Areal Flood Advisory	ILN	Butler	3 hr
Jul 16, 8:46 PM EDT	Areal Flood Advisory	ILN	Butler, Greene, Montgomery, Preble	3 hr
Jul 16, 8:54 PM EDT	Special Weather Statement	ILN	Butler	36 min
Jul 16, 10:33 PM EDT	Areal Flood Advisory	ILN	Hamilton	3 hr
Jul 17, 5:49 AM EDT	River Flood Advisory	ILN	Hamilton	3 hr
Jul 16, 10:15 PM EDT	Special Weather Statement	ILN	Carroll, Gallatin	30 min
Jul 17, 12:16 AM EDT	Areal Flood Advisory	ILN	Boone, Carroll, Gallatin	3 hr
Jul 16, 9:01 PM EDT	Flash Flood Warning	ILN	Dearborn, Franklin, Ripley	2 hr
Jul 16, 9:32 PM EDT	Areal Flood Advisory	ILN	Ripley	2 min
Jul 16, 9:34 PM EDT	Flash Flood Warning	ILN	Ripley	106 min
Jul 16, 11:15 PM EDT	Areal Flood Warning	ILN	Dearborn, Franklin, Ripley	9 hr
Jul 16, 11:30 PM EDT	Areal Flood Warning	ILN	Union	9 hr
Jul 17, 8:31 AM EDT	Areal Flood Advisory	ILN	Ripley	6 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.