Severe Thunderstorm Warning 78, NWS Wilmington, OH

450 
WWUS51 KILN 202234
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
634 PM EDT THU APR 20 2017

OHC047-071-129-141-202300-
/O.CON.KILN.SV.W.0078.000000T0000Z-170420T2300Z/
Fayette OH-Pickaway OH-Highland OH-Ross OH-
634 PM EDT THU APR 20 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR SOUTHEASTERN FAYETTE...SOUTHERN PICKAWAY...NORTHEASTERN HIGHLAND
AND NORTHERN ROSS COUNTIES...

At 633 PM EDT, a severe thunderstorm was located 7 miles northeast of
Greenfield, moving east at 45 mph.

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

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Chillicothe, Washington Court House, Circleville, Greenfield,
Kingston, New Holland, Logan Elm Village, North Folk Village, Good
Hope, Frankfort, Clarksburg, South Salem, Andersonville, Lattaville,
Austin, Whisler, Pickaway County Airport, Rock Mills, Hallsville and
Plano.

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.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3930 8345 3951 8345 3962 8284 3956 8284
      3956 8282 3935 8278
TIME...MOT...LOC 2233Z 261DEG 38KT 3944 8329 

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

Coniglio

183 
WWUS51 KILN 202244
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
644 PM EDT THU APR 20 2017

OHC047-071-202254-
/O.CAN.KILN.SV.W.0078.000000T0000Z-170420T2300Z/
Fayette OH-Highland OH-
644 PM EDT THU APR 20 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN FAYETTE AND
NORTHEASTERN HIGHLAND COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3931 8332 3954 8326 3962 8284 3956 8284
      3956 8282 3935 8278
TIME...MOT...LOC 2244Z 261DEG 38KT 3946 8317 

$$

OHC129-141-202300-
/O.CON.KILN.SV.W.0078.000000T0000Z-170420T2300Z/
Pickaway OH-Ross OH-
644 PM EDT THU APR 20 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR SOUTHERN PICKAWAY AND NORTHERN ROSS COUNTIES...

At 644 PM EDT, a severe thunderstorm was located 8 miles southeast of
New Holland, moving east at 45 mph.

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

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Chillicothe, Circleville, Kingston, Logan Elm Village, North Folk
Village, Frankfort, Clarksburg, South Salem, Andersonville,
Lattaville, Austin, Whisler, Pickaway County Airport and Hallsville.

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.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3931 8332 3954 8326 3962 8284 3956 8284
      3956 8282 3935 8278
TIME...MOT...LOC 2244Z 261DEG 38KT 3946 8317 

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

JDR

414 
WWUS51 KILN 202256
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
656 PM EDT THU APR 20 2017

OHC129-141-202305-
/O.EXP.KILN.SV.W.0078.000000T0000Z-170420T2300Z/
Pickaway OH-Ross OH-
656 PM EDT THU APR 20 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN PICKAWAY AND NORTHERN
ROSS COUNTIES WILL EXPIRE AT 700 PM EDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.  However small hail, gusty winds and heavy rain
are still possible with this thunderstorm.

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.

LAT...LON 3931 8332 3954 8326 3962 8284 3956 8284
      3956 8282 3935 8278
TIME...MOT...LOC 2255Z 261DEG 38KT 3947 8305 

$$

Coniglio

Area Forecast Discussion
National Weather Service Wilmington OH
259 PM EDT Thu Apr 20 2017

.SYNOPSIS...
Showers and thunderstorms are expected into tonight as a cold
front pushes east across the region. The front will stall out to
our south on Friday before lifting back to the north over the
weekend. This will lead to an increasing chance of showers
Friday night into Saturday. A cooler airmass will settle into
the area for the weekend.

&&

.NEAR TERM /THROUGH TONIGHT/...
Showers and thunderstorms have developed this afternoon along
the pre frontal boundary moving across Indiana. MLCapes across
that area are in the 500-1000 J/kg range but they do drop off
some to the east across our area. As a result, there is some
uncertainty as to how well this activity will maintain its
strength as it moves into our area. This initial wave of showers
may also help stabilize the airmass a bit which could also
results in some question as to the strength of the secondary
batch of storms developing across eastern Illinois as they move
eastward. At the moment, deep layer shear is marginal across our
area with 0-6 km values in the 20-25 knot range. This is
forecast to increase from the northwest between 21Z-03Z as some
better upper level energy works into our area. This will also be
accompanied by some cooler air aloft which could also aid in
some enhancement to the instability. Therefore, some uncertainty
exists in regard to the severe threat as we head through late
afternoon and into the early evening hours. It still
seems that the best threat will be across our northwest where
the better deep layer shear will develop. With some decent
mixing across the area this afternoon, dcapes have pushed up
close to 1000 J/kg across parts of our area so if we are able
to get some stronger storms, damaging wind appears to be the
primary threat. The storms should be fairly progressive but PWs
do push up to around 1.5 inches through early evening. As a
result, locally heavy rainfall will be possible with the
stronger storms with some localized flooding possible with
training storms. The cold front will push east across the area
later tonight with pcpn tapering off from the northwest
overnight.

&&

.SHORT TERM /FRIDAY THROUGH FRIDAY NIGHT/...
The front will continue to move off to the south through the
day on Friday with high pressure trying to work in from the
north. Suppose we could see a few lingering showers across our
far south into Friday morning but for the most part expect dry
conditions. Cooler air filtering in behind the front will lead
to more seasonable temperatures with highs ranging from the
upper 50s in the northwest to the mid and upper 60s in the
southeast. A developing surface wave will help the boundary to
begin to lift back to the north Friday night. This will lead to
an increasing chance of showers across our south through the
night.

&&

.LONG TERM /SATURDAY THROUGH WEDNESDAY/...
Extensive low pressure tracking across Tennessee along a slow moving
frontal boundary will bring showers Saturday. Southern locations
should see the bulk of showers, and a few rumbles of thunder will be
possible there as well in an environment containing elevated
instability.

Rain chances will gradually diminish Saturday night into Sunday as
the system works east. Weak high pressure is forecast to bring dry
conditions Monday into Tuesday. A wave of low pressure traveling
through the Great Lakes may result in a few more showers Tuesday
night into Wednesday. Additional showers could affect mainly
northern locations Thursday when a warm front is forecast to develop
across the Great Lakes.

Temperatures will start below normal for Saturday, with highs in the
mid 50s limited by clouds, precip, and cold advection on a northeast
low level flow. A rebound to near normal upper 60s can be expected
by Monday due to warm advection and reduced cloud cover, with
further warm advection making above normal 70s probable Tuesday
through Thursday.

&&

.AVIATION /18Z THURSDAY THROUGH TUESDAY/...
Good mixing across the area this afternoon has allowed for some
gusty southwesterly winds to develop. Meanwhile, showers and
thunderstorms have developed back to our west across Indiana
along a pre frontal boundary. This boundary will push east into
our area through late afternoon, followed by a cold front that
will move through our area later tonight. This will lead to
occasional showers and thunderstorms, primarily in the 22Z-03Z
time frame. As the front moves through, precipitation will
taper off from the northwest overnight. Expect mainly VFR
conditions outside of thunderstorms through the early portions
of the TAF period. However, as the front moves through, some
lingering low level moisture will likely allow for some more
widespread MVFR cloud development late tonight into Friday
morning. Any MVFR cigs should scatter out or lift into VFR by
the later Friday morning and into the afternoon.

OUTLOOK...MVFR ceilings and visibilities possible Saturday.

&&

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

&&

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

Hazardous Weather Outlook
National Weather Service Wilmington OH
310 PM EDT Thu Apr 20 2017

INZ050-OHZ026-034-035-042>044-211100-
Wayne-Hardin-Mercer-Auglaize-Darke-Shelby-Logan-
310 PM EDT Thu Apr 20 2017

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

.DAY ONE...This Afternoon and Tonight.

Occasional showers and thunderstorms will be possible into this
evening. A few of the storms may become severe with damaging winds
the primary threat. Locally heavy rainfall and isolated flooding will
also be possible.

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

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any severe weather.

INZ058-059-066-073-074-OHZ045-046-051>056-060>065-070>072-077-211100-
Fayette IN-Union IN-Franklin IN-Ripley-Dearborn-Union OH-Delaware-
Miami-Champaign-Clark-Madison-Franklin OH-Licking-Preble-Montgomery-
Greene-Fayette OH-Pickaway-Fairfield-Butler-Warren-Clinton-Hamilton-
310 PM EDT Thu Apr 20 2017

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

.DAY ONE...This Afternoon and Tonight.

Occasional showers and thunderstorms will be possible into this
evening. A few of the storms may become severe with damaging winds
the primary threat. Locally heavy rainfall and isolated flooding will
also be possible.

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

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any severe weather.

INZ075-080-KYZ089>100-OHZ073-074-078>082-088-211100-
Ohio-Switzerland-Carroll-Gallatin-Boone-Kenton-Campbell-Owen-Grant-
Pendleton-Bracken-Robertson-Mason-Lewis-Ross-Hocking-Clermont-Brown-
Highland-Adams-Pike-Scioto-
310 PM EDT Thu Apr 20 2017

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

.DAY ONE...This Afternoon and Tonight.

Thunderstorms will occur overnight with a frontal passage. Some
storms may contain strong winds and heavy rain.

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

Heavy rain is possible on Saturday as showers and a few
thunderstorms enter from the southwest. These showers may linger for
a while with a prolonged period of moderate to heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any severe weather.

Special Weather Statement
National Weather Service Wilmington OH
447 PM EDT THU APR 20 2017

OHZ051-061-062-202115-
Montgomery OH-Greene OH-Miami OH-
447 PM EDT THU APR 20 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN GREENE...
CENTRAL MONTGOMERY AND SOUTHEASTERN MIAMI COUNTIES UNTIL 515 PM
EDT...

At 446 PM EDT, radar indicated strong thunderstorms along a line
extending from near Englewood to near West Carrollton, moving
northeast at 50 mph.

STORM HAZARDS INCLUDE...
Winds to 40 mph...

Locations impacted include...
Dayton, Kettering, Beavercreek, Huber Heights, Fairborn, Trotwood,
Vandalia, Englewood, Tipp City, Moraine, Oakwood, Wright-Patterson
Afb, West Carrollton, Brown, Riverside, Clayton, Union, Shiloh,
Ginghamsburg and Fort Mckinley.

This includes the following Interstates...
 I-70 in Ohio between mile markers 25 and 40.
 I-75 in Ohio between mile markers 47 and 66.

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 8405 3970 8407 3965 8437 3987 8437
TIME...MOT...LOC 2046Z 232DEG 42KT 3984 8434 3971 8432

Novak

Special Weather Statement
National Weather Service Wilmington OH
513 PM EDT THU APR 20 2017

OHZ054-055-202145-
Madison OH-Franklin OH-
513 PM EDT THU APR 20 2017

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN FRANKLIN AND
NORTHEASTERN MADISON COUNTIES UNTIL 545 PM EDT...

At 513 PM EDT, radar indicated a strong thunderstorm near West
Jefferson, moving east at 55 mph.

STORM HAZARDS INCLUDE...
Winds to 40 mph...

Locations impacted include...
Columbus, Dublin, Upper Arlington, Hilliard, Worthington, Jefferson,
Plain City, West Jefferson, Choctaw Lake, Ohio State University, Lake
Darby, Grandview Heights, Valleyview, Marble Cliff, Riverlea,
Lafayette, Rosedale, Resaca, Clintonville and Interstate 70 at US
Route 42.

This includes the following Interstates...
 I-70 in Ohio between mile markers 73 and 101.
 I-71 in Ohio between mile markers 105 and 116.

Residents in these areas should remain alert. If this storm becomes
stronger, then a warning may be needed.

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 3994 8349 4008 8348 4012 8300 3993 8296
TIME...MOT...LOC 2113Z 259DEG 48KT 4001 8336

JDR

Special Weather Statement
National Weather Service Wilmington OH
533 PM EDT THU APR 20 2017

INZ080-KYZ089-090-094-095-202200-
Switzerland IN-Carroll KY-Owen KY-Gallatin KY-Grant KY-
533 PM EDT THU APR 20 2017

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN SWITZERLAND...
CARROLL...NORTHWESTERN GRANT...NORTHWESTERN OWEN AND GALLATIN
COUNTIES UNTIL 600 PM EDT...

At 533 PM EDT, radar indicated a strong thunderstorm over Bedford,
moving northeast at 40 mph.

STORM HAZARDS INCLUDE...
Winds to 40 mph...
Very heavy rain...

Locations impacted include...
Carrollton, Vevay, Warsaw, Florence, Kentucky Speedway, Glencoe,
Ghent, Sanders, Sparta, Worthville, Prestonville, Interstate 71 at
Mile Marker 52, Interstate 71 at US Route 127, Wheatley, Langstaff,
Markland, Egypt Bottom, US Route 42 at State Route 184, Ethridge and
Interstate 71 at State Route 227.

This includes I-71 in Kentucky between mile markers 39 and 63.

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 3870 8522 3869 8520 3871 8520 3884 8486
      3866 8474 3858 8508 3859 8507 3858 8521
      3859 8522 3860 8522 3862 8523 3863 8523
      3868 8528
TIME...MOT...LOC 2133Z 242DEG 33KT 3860 8530

AR

Special Weather Statement
National Weather Service Wilmington OH
542 PM EDT THU APR 20 2017

OHZ046-055-056-202215-
Licking OH-Delaware OH-Franklin OH-
542 PM EDT THU APR 20 2017

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN FRANKLIN...
SOUTHEASTERN DELAWARE AND NORTHWESTERN LICKING COUNTIES UNTIL 615 PM
EDT...

At 541 PM EDT, radar indicated a strong thunderstorm over Polaris,
moving east at 50 mph.

STORM HAZARDS INCLUDE...
Winds to 50 mph...
Very heavy rain...

Locations impacted include...
Columbus, Westerville, Gahanna, Worthington, Pataskala, Powell,
Johnstown, Sunbury, Minerva Park, Polaris, Easton, New Albany,
Jersey, Galena, Riverlea, Alexandria, Hartford, Alum Creek State
Park, State Route 310 at State Route 161 and Clintonville.

This includes I-71 in Ohio between mile markers 114 and 129.

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

Residents in these areas should remain alert. If this storm becomes
stronger, then a warning may be needed.

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 4005 8261 4003 8304 4021 8311 4030 8275
      4028 8275 4027 8256
TIME...MOT...LOC 2141Z 253DEG 43KT 4015 8299

JDR

Special Weather Statement
National Weather Service Wilmington OH
545 PM EDT THU APR 20 2017

OHZ054-055-064-202215-
Madison OH-Franklin OH-Pickaway OH-
545 PM EDT THU APR 20 2017

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN FRANKLIN...NORTHWESTERN
PICKAWAY AND SOUTHEASTERN MADISON COUNTIES UNTIL 615 PM EDT...

At 544 PM EDT, radar indicated a strong thunderstorm near Jefferson,
moving northeast at 30 mph.

STORM HAZARDS INCLUDE...
Winds to 50 mph...
Pea size hail...
Very heavy rain...

Locations impacted include...
Columbus, Grove City, Upper Arlington, Gahanna, Bexley, London,
Jefferson, Canal Winchester, Groveport, West Jefferson, Ohio State
University, Lake Darby, Easton, Whitehall, Grandview Heights, Obetz,
Lithopolis, Urbancrest, Valleyview and Marble Cliff.

This includes the following Interstates...
 I-70 in Ohio between mile markers 91 and 109.
 I-71 in Ohio between mile markers 85 and 113.

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 3982 8280 3983 8282 3982 8282 3975 8339
      3990 8344 4006 8289 3986 8280
TIME...MOT...LOC 2144Z 244DEG 27KT 3984 8330

AR

Special Weather Statement
National Weather Service Wilmington OH
613 PM EDT THU APR 20 2017

OHZ055-056-202245-
Licking OH-Franklin OH-
613 PM EDT THU APR 20 2017

...A STRONG THUNDERSTORM WILL AFFECT EASTERN FRANKLIN AND
SOUTHWESTERN LICKING COUNTIES UNTIL 645 PM EDT...

At 613 PM EDT, radar indicated a strong thunderstorm near Columbus,
moving northeast at 30 mph.

STORM HAZARDS INCLUDE...
Winds to 50 mph...
Very heavy rain...

Locations impacted include...
Columbus, Reynoldsburg, Grove City, Gahanna, Bexley, Pataskala,
Johnstown, Ohio State University, Beechwood Trails, Easton, Summit
Station, Whitehall, Etna, New Albany, Grandview Heights, Obetz,
Jersey, Urbancrest, Valleyview and Marble Cliff.

This includes the following Interstates...
 I-70 in Ohio between mile markers 95 and 111, and between mile
markers 114 and 117.
 I-71 in Ohio between mile markers 100 and 112.

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 3994 8274 3994 8281 3992 8281 3985 8306
      3996 8312 4013 8278 4013 8276 4014 8276
      4016 8271 3997 8261
TIME...MOT...LOC 2213Z 246DEG 27KT 3993 8302

AR