Severe Thunderstorm Warning 69, NWS Wilmington, OH

884 
WWUS51 KILN 291926
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
326 PM EDT Thu Jul 29 2021

OHC045-049-129-292000-
/O.CON.KILN.SV.W.0069.000000T0000Z-210729T2000Z/
Franklin OH-Fairfield OH-Pickaway OH-
326 PM EDT Thu Jul 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR SOUTHEASTERN FRANKLIN...NORTHWESTERN FAIRFIELD AND NORTHEASTERN
PICKAWAY COUNTIES...

At 325 PM EDT, a severe thunderstorm was located over Groveport,
moving southeast at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vehicles is possible. Expect wind 
         damage to trees and power lines.

Locations impacted include...
Columbus, Reynoldsburg, Pickerington, Bexley, Canal Winchester,
Groveport, Ashville, Baltimore, Whitehall, Obetz, Royalton,
Lithopolis, Carroll, Lockbourne, Brice, Blacklick Estates, Duvall and
Slate Run Metro Park.

This includes the following Interstates...
 I-70 in Ohio between mile markers 101 and 112.
 I-71 in Ohio between mile markers 103 and 105.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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

&&

LAT...LON 3983 8255 3966 8291 3993 8305 3999 8289
      3995 8280 3992 8275
TIME...MOT...LOC 1925Z 314DEG 27KT 3989 8290 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

ch

423 
WWUS51 KILN 291936
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
336 PM EDT Thu Jul 29 2021

OHC045-049-129-292000-
/O.CON.KILN.SV.W.0069.000000T0000Z-210729T2000Z/
Franklin OH-Fairfield OH-Pickaway OH-
336 PM EDT Thu Jul 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR SOUTHEASTERN FRANKLIN...NORTHWESTERN FAIRFIELD AND NORTHEASTERN
PICKAWAY COUNTIES...

At 336 PM EDT, a severe thunderstorm was located over Groveport,
moving southeast at 20 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to trees and power lines.

Locations impacted include...
Columbus, Reynoldsburg, Pickerington, Canal Winchester, Groveport,
Ashville, Whitehall, Obetz, Royalton, Lithopolis, Carroll,
Lockbourne, Brice, Blacklick Estates, Duvall and Slate Run Metro
Park.

This includes I-70 in Ohio between mile markers 105 and 112.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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

&&

LAT...LON 3981 8259 3966 8291 3989 8303 3997 8285
TIME...MOT...LOC 1936Z 306DEG 18KT 3989 8286 

HAIL...1.50IN
WIND...60MPH
 
$$

ch

961 
WWUS51 KILN 291946
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
346 PM EDT Thu Jul 29 2021

OHC045-049-129-292000-
/O.CON.KILN.SV.W.0069.000000T0000Z-210729T2000Z/
Franklin OH-Fairfield OH-Pickaway OH-
346 PM EDT Thu Jul 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR SOUTHEASTERN FRANKLIN...NORTHWESTERN FAIRFIELD AND NORTHEASTERN
PICKAWAY COUNTIES...

At 345 PM EDT, a severe thunderstorm was located over Canal
Winchester, moving southeast at 20 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to trees and power lines.

Locations impacted include...
Columbus, Reynoldsburg, Pickerington, Canal Winchester, Groveport,
Obetz, Royalton, Lithopolis, Carroll, Brice, Blacklick Estates and
Slate Run Metro Park.

This includes I-70 in Ohio between mile markers 111 and 112.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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

&&

LAT...LON 3967 8288 3987 8300 3994 8280 3981 8259
TIME...MOT...LOC 1945Z 306DEG 18KT 3986 8281 

HAIL...1.50IN
WIND...60MPH
 
$$

ch

195 
WWUS51 KILN 291952
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
352 PM EDT Thu Jul 29 2021

OHC045-049-129-292001-
/O.EXP.KILN.SV.W.0069.000000T0000Z-210729T2000Z/
Franklin OH-Fairfield OH-Pickaway OH-
352 PM EDT Thu Jul 29 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN FRANKLIN...
NORTHWESTERN FAIRFIELD AND NORTHEASTERN PICKAWAY COUNTIES WILL EXPIRE
AT 400 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
central Ohio.

Please report previous wind damage or hail to the National Weather
Service by going to our website at weather.gov/iln and submitting
your report via social media.

Remember, a Severe Thunderstorm Warning still remains in effect for 
far southeastern Franklin County and most of Fairfield County.

LAT...LON 3967 8288 3987 8300 3994 8280 3981 8259
TIME...MOT...LOC 1951Z 307DEG 24KT 3984 8277 

$$

ch

AREA FORECAST DISCUSSION
National Weather Service Wilmington OH
206 PM EDT Thu Jul 29 2021

.SYNOPSIS...
Showers and thunderstorms will weaken as they move into the area
this morning. But additional storms will develop this afternoon
ahead of a cold front. Once the front moves through tonight,
temperatures will become slightly below normal and remain that
way into next week.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
MCS has weakened substantially this morning and is primarily
east of I-71 as of 14z. There is still some convection that will
cross through Delaware and Licking counties associated with an
MCV that has formed in the northern tier of this system.
Elsewhere, just a few light showers are possible, mainly east of
I-71 this morning. Have trended PoPs lower in our west-central
Ohio and Miami Valley counties this morning with this
precipitation pushing eastward.

Visible satellite imagery shows a clear sector beginning to form
in portions of NE Indiana into NW Ohio behind this system. Most
locations west of I-71 will begin to observe more breaks in the
clouds this morning which will help increase insolation and
total amount of destabilization. With the lull in precipitation,
the best instability looks to be in our western counties down
into the Tri-state area. SREF ensemble mean still has around
3000 J/kg of MLCAPE developing this afternoon closer towards the
Cincinnati metro. While CAMs are in moderate disagreement
(between each other and consecutive runs of the same model) in
the evolution and location of afternoon storms, there does
appear to be a more prominent signal for the strongest
convection developing in portions of Illinois/Indiana which will
sink southward and impact portions of our southwestern counties
later this afternoon. The timeframe of greatest concern is
currently from about 4pm-9pm for our western counties down into
the Tri-state area. The primary threat is still for damaging
winds and large hail with localized flooding possible due to the
heavy downpours. While our environment isn't the most favorable
for tornadoes, there are still a number of parameters
advantageous for tornadogenesis, and therefore cannot rule out
an isolated tornado forming during the storms this
afternoon/evening. For our remaining eastern locations, there
appears to be greater uncertainty with the development and
organization of storms. Expecting there to be isolated to
scattered storms that begin firing off again around 18z if not
slightly earlier, with PoPs diminishing from north to south
beginning in the late afternoon/early evening. The primary
severe threat looks to end by the late evening hours, but there
still may be a few storms that linger until about midnight.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM FRIDAY/...
Storms will probably still be ongoing at the beginning of the
period but then clear the area in the evening. Severe threat
will continue until that happens. Cannot rule out some
additional showers dropping into central Ohio as a cold front
moves through later in the night. The front will move through
the entire area by daybreak Friday. High pressure will then
start to build in on Friday with conditions being not quite as
warm and not as humid.

&&

.LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/...
Area will be under a northwest flow aloft to start the long term,
with a broad trough present over the Eastern CONUS. Weak surface
high pressure forming beneath the confluent upper flow should
provide mainly dry conditions Friday night and Saturday, though a
weak disturbance may trigger a few showers in southwest counties. A
limited threat for showers and thunderstorms spreads across the
entire FA Sunday as a batch of short wave energy rounding the base
of the sharpening upper trough enhances lift. A lack of  weather
producing features and moisture points to mainly dry weather for
Monday through Wednesday, with precip chances confined to isolated
showers and thunderstorms Wednesday due to disturbances associated
with the persistent upper trough.

Lower than average geopotential heights signal below normal
temperatures through the period. Expect highs within a few degrees
of 80 Saturday through Tuesday, rising to the low and mid 80s
Wednesday.

&&

.AVIATION /18Z THURSDAY THROUGH TUESDAY/...
Scattered storms expected to develop this afternoon and linger
into the late evening hours. Some of these storms will be strong
to severe. Have included a tempo group at every taf site to
indicate potential timing of TSRA based on latest model
guidance. Heavy downpours will lead to reduced vsbys and some
MVFR CIG reductions - IFR reductions are less likely but could
happen briefly in stronger storms. Strong wind gusts and large hail
will be the primary threats with these storms. Included an
increase in wind gusts to near 25 kts in the tempo group, but
will monitor trends and amend if stronger gusts are expected
with thunderstorms.

Thunderstorm threat diminishes this evening from north to south,
but a few storms could linger until about midnight for our
southern taf sites. Afterwards, a number of sites will observe
MVFR CIG and vsby reductions overnight with the passing cold
front. Surface winds will shift towards the north-northwest, but
remain fairly light below 10 kts overnight.

May have held onto MVFR CIGs longer than needed, but CIG
improvement to VFR is expected around sunrise on Friday.
Prevailing VFR expected the remainder of the taf period on
Friday with light northerly winds.

.OUTLOOK... MVFR ceilings and visibilities are possible
Saturday night into Sunday.

&&

.ILN WATCHES/WARNINGS/ADVISORIES...
OH...None.
KY...None.
IN...None.

&&

SYNOPSIS...
NEAR TERM...Clark
SHORT TERM...
LONG TERM...Coniglio
AVIATION...Clark

Hazardous Weather Outlook
National Weather Service Wilmington OH
510 AM EDT Thu Jul 29 2021

INZ050-OHZ026-034-035-042>046-051>056-060>065-072>074-080-300915-
Wayne-Hardin-Mercer-Auglaize-Darke-Shelby-Logan-Union OH-Delaware-
Miami-Champaign-Clark-Madison-Franklin OH-Licking-Preble-Montgomery-
Greene-Fayette OH-Pickaway-Fairfield-Clinton-Ross-Hocking-Highland-
510 AM EDT Thu Jul 29 2021

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

.DAY ONE...Today and tonight.

Showers and thunderstorms this morning are not expected to be severe.
However, additional thunderstorms are forecast to develop this
afternoon. A few severe storms will be possible with damaging winds
being the primary threat. Large hail or an isolated tornado cannot be
ruled out.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon.

INZ058-059-066-073>075-080-KYZ089>100-OHZ070-071-077>079-081-082-088-
300915-
Fayette IN-Union IN-Franklin IN-Ripley-Dearborn-Ohio-Switzerland-
Carroll-Gallatin-Boone-Kenton-Campbell-Owen-Grant-Pendleton-Bracken-
Robertson-Mason-Lewis-Butler-Warren-Hamilton-Clermont-Brown-Adams-
Pike-Scioto-
510 AM EDT Thu Jul 29 2021

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

.DAY ONE...Today and tonight.

The heat index will be between 95 and 100 this afternoon.

Thunderstorms will develop and move across the area this afternoon
into the evening. A few severe storms will be possible with damaging winds
being the primary threat. Large hail or an isolated tornado cannot be
ruled out.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and evening.

Special Weather Statement
National Weather Service Wilmington OH
951 AM EDT Thu Jul 29 2021

OHZ046-055-056-291430-
Licking OH-Delaware OH-Franklin OH-
951 AM EDT Thu Jul 29 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN FRANKLIN...
SOUTHEASTERN DELAWARE AND LICKING COUNTIES UNTIL 1030 AM EDT...

At 951 AM EDT, radar indicated a strong thunderstorm near Sunbury,
moving southeast at 45 mph.

STORM HAZARDS INCLUDE...
Winds to 40 mph...
Pea size hail...

Locations impacted include...
Newark, Westerville, Delaware, Heath, Granville, Pataskala,
Johnstown, Sunbury, Buckeye Lake, Hebron, Utica, Granville South,
Marne, Beechwood Trails, Harbor Hills, New Albany, Jersey, Galena,
Alexandria and Hartford.

This includes the following Interstates...
 I-70 in Ohio between mile markers 128 and 131.
 I-71 in Ohio between mile markers 124 and 138.

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 3999 8232 3993 8247 3993 8249 4022 8305
      4036 8294 4035 8275 4028 8275 4027 8248
      4025 8248 4024 8225
TIME...MOT...LOC 1351Z 297DEG 41KT 4023 8292

Binau

Special Weather Statement
National Weather Service Wilmington OH
229 PM EDT Thu Jul 29 2021

OHZ045-046-054-055-291900-
Delaware OH-Madison OH-Franklin OH-Union OH-
229 PM EDT Thu Jul 29 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN FRANKLIN...
SOUTHWESTERN DELAWARE...NORTHEASTERN MADISON AND SOUTHEASTERN UNION
COUNTIES IN CENTRAL OHIO UNTIL 300 PM EDT...

At 228 PM EDT, radar indicated a strong thunderstorm near Plain City,
moving east at 30 mph.

STORM HAZARDS INCLUDE...
Winds to 45 mph...
Pea size hail...

Locations impacted include...
Columbus, Dublin, Westerville, Upper Arlington, Hilliard, Marysville,
Worthington, Powell, Plain City, Minerva Park, New California, Ohio
State University, Polaris, Grandview Heights, Shawnee Hills,
Ostrander, Valleyview, Marble Cliff, Riverlea and Unionville Center.

This includes the following Interstates...
 I-70 in Ohio between mile markers 93 and 100.
 I-71 in Ohio between mile markers 106 and 107, and between mile
markers 109 and 125.

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 4008 8343 4030 8332 4018 8286 3993 8300
TIME...MOT...LOC 1828Z 287DEG 24KT 4015 8332

ch

Special Weather Statement
National Weather Service Wilmington OH
313 PM EDT Thu Jul 29 2021

OHZ056-291930-
Licking OH-
313 PM EDT Thu Jul 29 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN LICKING COUNTY
UNTIL 330 PM EDT...

At 313 PM EDT, radar indicated a strong thunderstorm near Hanover,
moving southeast at 30 mph.

STORM HAZARDS INCLUDE...
Winds to 40 mph...
One half inch diameter hail...

Locations impacted include...
Hanover, Marne, Toboso and Fallsburg.

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 4002 8220 4009 8232 4024 8233 4024 8218
TIME...MOT...LOC 1913Z 292DEG 27KT 4017 8224

Hatzos