Alert archive / Ohio / Special Weather Statements in 2017

Special Weather Statement, NWS Wilmington, OH

July 20, 2017Clinton County, Ohio

NWS Wilmington, OH issued this special weather statement at Jul 20, 2017, 2:21 PM EDT for Clinton County, Ohio. It was in force for 24 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 20, 2017, 2:21 PM EDT (18:21 UTC)
Expired
Jul 20, 2017, 2:45 PM EDT
In force
24 min
Issued by
NWS Wilmington, OH

County Clinton County, OH

The radar

The Cincinnati radar (KILN), 8 km from the middle of the area, began a volume at 18:21 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, 6.4 hours before the alert went out and 10 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 2017-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2017-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1209 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

710 
WWUS81 KILN 201821
SPSILN

Special Weather Statement
National Weather Service Wilmington OH
221 PM EDT THU JUL 20 2017
 
OHZ071-072-080-201845-
Highland OH-Warren OH-Clinton OH-
221 PM EDT THU JUL 20 2017

...A RAPIDLY DEVELOPING THUNDERSTORM WILL AFFECT EAST CENTRAL
WARREN...CLINTON AND NORTHWESTERN HIGHLAND COUNTIES UNTIL 245 PM
EDT...

At 221 PM EDT, radar indicated a thunderstorm 8 miles northeast of
Morrow, moving east at 40 mph.

STORM HAZARDS INCLUDE...
Winds to 50 mph...

Locations impacted include...
Wilmington, Lynchburg, New Vienna, Russell, Clarksville, Harveysburg,
Martinsville, Midland, Fort Ancient, New Antioch, Middleboro,
Oakland, Cuba, Lees Creek, State Route 350 at US Route 22, Caesar
Creek State Park, Morrisville, Ogden, Kingman and Cowan Lake State
Park.

This includes I-71 in Ohio between mile markers 37 and 48.
 
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 3938 8412 3953 8402 3944 8359 3920 8369
TIME...MOT...LOC 1821Z 289DEG 33KT 3942 8401 

$$

Franks

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 2:45 PM EDTSpecial Weather StatementILNHighland30 min
Jul 20, 3:08 PM EDTHeat AdvisoryILNAdams, Brown, Clermont, Clinton, Hamilton, Highland and 2 more52 hr

Nearby

Special Weather Statements in Ohio, 2017Every special weather statement in 2017

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.