Alert archive / Ohio / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 182, NWS Wilmington, OH

July 10, 2017Hocking County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jul 10, 2017, 5:45 PM EDT for Hocking County, Ohio. It was in force for 15 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 10, 2017, 5:45 PM EDT (21:45 UTC)
Expired: Jul 10, 2017, 6:00 PM EDT
In force: 15 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Hocking County, OH

The radar

The Cincinnati radar (KILN), 132 km from the middle of the area, began a volume at 21:47 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.8 hours before the alert went out and 131 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: 235 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 985 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 294 m²/s²
0-3 km storm-relative helicity: 291 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted.

735 
WUUS51 KILN 102145
SVRILN
OHC073-102200-
/O.NEW.KILN.SV.W.0182.170710T2145Z-170710T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wilmington OH
545 PM EDT MON JUL 10 2017

The National Weather Service in Wilmington has issued a

* Severe Thunderstorm Warning for...
  Southeastern Hocking County in central Ohio...

* Until 600 PM EDT.

* At 545 PM EDT, a severe thunderstorm was located near Nelsonville,
  moving east 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...
  Nelsonville, Starr, Union Furnace, Haydenville and Carbon Hill. 

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 3947 8228 3938 8229 3939 8243 3952 8234
      3949 8217 3947 8217
TIME...MOT...LOC 2145Z 290DEG 26KT 3945 8231 

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

Novak

1 follow-up statement

671 
WWUS51 KILN 102157
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
557 PM EDT MON JUL 10 2017

OHC073-102207-
/O.EXP.KILN.SV.W.0182.000000T0000Z-170710T2200Z/
Hocking OH-
557 PM EDT MON JUL 10 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HOCKING COUNTY
WILL EXPIRE AT 600 PM EDT...
        
The storm which prompted the warning has moved out of the 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 3947 8228 3938 8229 3939 8243 3952 8234
      3949 8217 3947 8217
TIME...MOT...LOC 2157Z 290DEG 26KT 3942 8221 

$$

Novak

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 10, 5:03 PM EDT, 42 minutes earlier.

Area forecast discussion, Jul 10, 5:03 PM EDT, 42 minutes before

Area Forecast Discussion
National Weather Service Wilmington OH
503 PM EDT Mon Jul 10 2017

.SYNOPSIS...
Upper air disturbances tracking through the area will keep
unsettled weather across the region into Tuesday. Hot
temperatures will spread in on Wednesday. A cold front will sag
south towards the area later in the week bringing a return of
showers and thunderstorms.

&&

.NEAR TERM /UNTIL 6 AM TUESDAY MORNING/...
MCV continues to track east across northern Ohio with convection
occurring out ahead of it. The environment in central Ohio has
become favorable for vigorous updrafts which has led to severe
storms with heavy rainfall as well. This activity will push out
of the forecast area over the next few hours.

Additional showers and thunderstorms tracking southeast across
Indiana are much weaker and should continue to dissipate.
However, new convection is expected to develop a bit further
northwest as a short wave drops out of the upper midwest.
Guidance suggests and east-west oriented line of showers and
thunderstorms will drop into the forecast area late this evening
with a general diminishing trend through the overnight. Lows are
forecast to be in the lower 70s.

&&

.SHORT TERM /6 AM TUESDAY MORNING THROUGH TUESDAY NIGHT/...
East-west moist axis, south of a front that will remain across
northern Indiana and Ohio, will extend across the forecast area
with new showers and thunderstorms developing along this axis
during the day. Shear is forecast to be weak but instability may
sufficient for some strong to severe storms. Bigger concern will
be for heavy rainfall with training and/or back building storms
in an environment of high precipitable water and deep warm cloud
depths. Activity will gradually diminish during the evening and
start to lift north.

Highs will be a bit suppressed by showers and thunderstorms, and
could end up being a bit warm if activity ends up being
extensive enough. Tuesday night will once again have lows in the
lower 70s.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
A vertically stacked upper level low will be located southeast of
the Hudson Bay Wednesday morning with a warm front pulling north
into Michigan. Some rain will be possible Wednesday morning ahead of
the warm front, but most of the day should be dry Wednesday as lower
PWAT air works into the area (PWAT ~ 1.30"). 850 mb temperatures on
both the GFS and ECMWF continue to be forecasted around 20 degrees C
Wednesday. Overall this would support high temperatures in the lower
90s. Have gone a little below guidance here though as wet soil and a
moist atmosphere will likely hold temperatures back slightly.

On Thursday, a short-wave that was over the Pacific northwest a
couple of days ago will be pushing southeast into Minnesota around
the upper level low off to the east. Ahead of the short-wave weak
PVA will traverse the region helping to provide weak upper level
support. Forecast soundings also do destabilize Thursday and with
PWATs back on the rise PoPs may need to be raised. For now have held
off as uncertainty remains in where the upper level disturbances
will be.

During the day Friday a surface front will push south in association
with the short-wave. Models continue to struggle here on exactly how
quickly and where the short-wave will go around an amplifying ridge
of high pressure. The ECMWF and the GFS in general try to push the
front through the area Friday evening. Behind the front expect
drier and cooler conditions.

A reinforcing front is then expected to dive south and push through
the area Sunday. Some precipitation will be possible with the front
but given the uncertainty have left out of the forecast package for
now.

&&

.AVIATION /21Z MONDAY THROUGH SATURDAY/...
Developing thunderstorms may impact the Columbus TAFs early in
the period. Otherwise, the probability of any terminals being
impacted by showers and thunderstorms through the rest of the
daytime period is low. So VFR will prevail although south
southwest winds will remain gusty until around 00Z.

Appears that additional showers and thunderstorms will form
north of the region and sag south overnight. Due to timing
uncertainties, have used a broad range of VCSH/VCTS to indicate
the period of greatest potential. South winds will be persistent
through the night.

There is some potential for MVFR ceilings to develop and impact
locations from KDAY to KCMH/KLCK late in the TAF period.

OUTLOOK...Thunderstorms possible Tuesday and evening and then
again Thursday and Friday.

&&

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

&&

SYNOPSIS...
NEAR TERM...
SHORT TERM...
LONG TERM...Haines
AVIATION...

Hazardous weather outlook, Jul 10, 5:28 AM EDT, 12 hours 17 minutes before

Hazardous Weather Outlook
National Weather Service Wilmington OH
528 AM EDT Mon Jul 10 2017

INZ050-058-059-OHZ026-034-035-042>046-051>056-060>065-073-074-110930-
Wayne-Fayette IN-Union IN-Hardin-Mercer-Auglaize-Darke-Shelby-Logan-
Union OH-Delaware-Miami-Champaign-Clark-Madison-Franklin OH-Licking-
Preble-Montgomery-Greene-Fayette OH-Pickaway-Fairfield-Ross-Hocking-
528 AM EDT Mon Jul 10 2017

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

.DAY ONE...Today and Tonight.

Several rounds of thunderstorms are expected to move across the
region today. Some of these storms could produce damaging straight
line winds and large hail. Heavy rainfall may also occur which could
lead to localized flooding.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Hot and humid conditions are expected Wednesday and Thursday which
may result in heat indices rising into the mid to upper 90s both
days.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

INZ066-073>075-080-KYZ089>100-OHZ070>072-077>082-088-110930-
Franklin IN-Ripley-Dearborn-Ohio-Switzerland-Carroll-Gallatin-Boone-
Kenton-Campbell-Owen-Grant-Pendleton-Bracken-Robertson-Mason-Lewis-
Butler-Warren-Clinton-Hamilton-Clermont-Brown-Highland-Adams-Pike-
Scioto-
528 AM EDT Mon Jul 10 2017

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

.DAY ONE...Today and Tonight.

Thunderstorms developing today will result in heavy downpours that
may cause localized flooding. In addition, some thunderstorms may
produce isolated damaging wind gusts and large hail.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Hot and humid conditions are expected Wednesday and Thursday which
may result in heat indices rising into the mid to upper 90s both
days.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jul 10, 5:14 PM EDT, 31 minutes before

Special Weather Statement
National Weather Service Wilmington OH
514 PM EDT MON JUL 10 2017

OHZ055-064-065-073-074-102200-
Fairfield OH-Ross OH-Franklin OH-Hocking OH-Pickaway OH-
514 PM EDT MON JUL 10 2017

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN FRANKLIN...
FAIRFIELD...HOCKING...CENTRAL PICKAWAY AND NORTHEASTERN ROSS COUNTIES
UNTIL 600 PM EDT...

At 514 PM EDT, radar indicated a strong thunderstorm over Canal
Winchester, moving southeast at 45 mph.

STORM HAZARDS INCLUDE...
Winds to 50 mph...
One half inch diameter hail...

Locations impacted include...
Columbus, Lancaster, Reynoldsburg, Grove City, Pickerington,
Circleville, Logan, Canal Winchester, Groveport, Ashville, Baltimore,
Buckeye Lake, South Bloomfield, Bremen, Millersport, Kingston,
Pleasantville, Hide-A-Way Hills, Fairfield Beach and Logan Elm
Village.

This includes the following Interstates...
 I-70 in Ohio between mile markers 104 and 113.
 I-71 in Ohio between mile markers 103 and 105.

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 3939 8239 3939 8251 3937 8252 3937 8275
      3931 8275 3933 8290 3974 8311 3995 8301
      3993 8246 3984 8247 3983 8240 3975 8240
      3974 8237 3960 8238 3959 8226
TIME...MOT...LOC 2114Z 294DEG 49KT 3983 8285

Novak

Local storm report, Jul 10, 5:35 PM EDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
535 PM EDT MON JUL 10 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0530 PM     FLASH FLOOD      4 E GAHANNA             40.03N 82.80W
07/10/2017                   FRANKLIN           OH   TRAINED SPOTTER

            WATER COVERING NEIGHBORHOOD ROADS.

&&

JGIBSON

Special weather statement, Jul 10, 5:36 PM EDT, 9 minutes before

Special Weather Statement
National Weather Service Wilmington OH
536 PM EDT MON JUL 10 2017

OHZ074-102200-
Hocking OH-
536 PM EDT MON JUL 10 2017

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN HOCKING COUNTY
UNTIL 600 PM EDT...

At 536 PM EDT, radar indicated a strong thunderstorm near Logan,
moving southeast at 50 mph.

STORM HAZARDS INCLUDE...
Winds to 50 mph...
One half inch diameter hail...
Frequent cloud-to-ground lightning...
Very heavy rain...

Locations impacted include...
Nelsonville, Starr, Murray City, Union Furnace, Haydenville, Oreville
and Carbon Hill.

Do not stay in the open or seek shelter under trees when lightning
threatens. Move indoors when a thunderstorm approaches.

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 3947 8217 3947 8228 3938 8229 3939 8242
      3959 8229 3959 8226 3956 8226 3955 8216
TIME...MOT...LOC 2136Z 294DEG 49KT 3952 8231

Novak

Local storm report, Jul 10, 5:37 PM EDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
537 PM EDT MON JUL 10 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0405 PM     FLASH FLOOD      2 NNE DOWNTOWN COLUMBUS 39.99N 82.99W
07/10/2017                   FRANKLIN           OH   BROADCAST MEDIA

            I-71 AT 5TH CLOSED DUE TO FLOODING ON HIGHWAY

0420 PM     FLASH FLOOD      2 E HILLIARD            40.04N 83.10W
07/10/2017                   FRANKLIN           OH   LAW ENFORCEMENT

            AREAS OF DUBLIN RD BETWEEN DAVIDSON AND FISHINGER FLOODED
            AND IMPASSIBLE

0420 PM     FLASH FLOOD      3 N DOWNTOWN COLUMBUS   40.00N 83.01W
07/10/2017                   FRANKLIN           OH   BROADCAST MEDIA

            ALONG HIGH STREET BETWEEN E. 12TH AND E. 15TH

&&

Local storm report, Jul 10, 5:38 PM EDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
538 PM EDT MON JUL 10 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0537 PM     FLASH FLOOD      6 E DOWNTOWN COLUMBUS   39.97N 82.90W
07/10/2017                   FRANKLIN           OH   TRAINED SPOTTER

            CREEK ON ROBINWOOD AVENUE IS SPILLING ONTO ROAD.

&&

JGIBSON

Special weather statement, Jul 10, 5:41 PM EDT, 4 minutes before

Special Weather Statement
National Weather Service Wilmington OH
541 PM EDT MON JUL 10 2017

OHZ046-055-056-065-102230-
Licking OH-Fairfield OH-Delaware OH-Franklin OH-
541 PM EDT MON JUL 10 2017

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN FRANKLIN...NORTH
CENTRAL FAIRFIELD...SOUTHEASTERN DELAWARE AND SOUTHWESTERN LICKING
COUNTIES UNTIL 630 PM EDT...

At 541 PM EDT, radar indicated a strong thunderstorm over Minerva
Park, moving east at 30 mph.

STORM HAZARDS INCLUDE...
Winds to 30 mph...
Pea size hail...
Very heavy rain...

Locations impacted include...
Columbus, Westerville, Reynoldsburg, Upper Arlington, Gahanna,
Pickerington, Worthington, Bexley, Granville, Pataskala, Johnstown,
Baltimore, Minerva Park, Granville South, Beechwood Trails, Polaris,
Easton, Summit Station, Whitehall and Etna.

This includes the following Interstates...
 I-70 in Ohio between mile markers 112 and 125.
 I-71 in Ohio between mile markers 112 and 125.

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 4004 8309 4021 8300 4011 8249 3985 8259
TIME...MOT...LOC 2141Z 290DEG 26KT 4011 8296

Novak

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 6:15 AM EDT	Special Weather Statement	ILN	Hardin	45 min
Jul 10, 7:25 AM EDT	Areal Flood Advisory	ILN	Hardin	95 min
Jul 10, 10:38 AM EDT	Special Weather Statement	ILN	Clinton	37 min
Jul 10, 11:51 AM EDT	Special Weather Statement	ILN	Hardin	24 min
Jul 10, 12:14 PM EDT	Special Weather Statement	ILN	Hardin	16 min
Jul 10, 12:28 PM EDT	Special Weather Statement	ILN	Hardin	32 min
Jul 10, 12:37 PM EDT	Special Weather Statement	ILN	Logan	38 min
Jul 10, 12:45 PM EDT	Special Weather Statement	ILN	Delaware	45 min
Jul 10, 1:19 PM EDT	Special Weather Statement	ILN	Licking	41 min
Jul 10, 2:01 PM EDT	Special Weather Statement	ILN	Champaign, Delaware, Union	44 min
Jul 10, 2:25 PM EDT	Severe Thunderstorm Warning	ILN	Delaware, Union	35 min
Jul 10, 2:30 PM EDT	Special Weather Statement	ILN	Franklin	45 min
Jul 10, 2:38 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Delaware, Franklin, Madison, Union	52 min
Jul 10, 2:59 PM EDT	Severe Thunderstorm Warning	ILN	Delaware, Licking	46 min
Jul 10, 3:05 PM EDT	Special Weather Statement	ILN	Madison	25 min
Jul 10, 3:12 PM EDT	Severe Thunderstorm Warning	ILN	Delaware, Fairfield, Franklin, Licking	48 min
Jul 10, 3:18 PM EDT	Areal Flood Advisory	ILN	Delaware, Fairfield, Franklin, Licking, Madison, Union	3 hr
Jul 10, 3:22 PM EDT	Special Weather Statement	ILN	Union	38 min
Jul 10, 3:26 PM EDT	Special Weather Statement	ILN	Licking	49 min
Jul 10, 3:28 PM EDT	Special Weather Statement	ILN	Pickaway	32 min
Jul 10, 3:47 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Franklin, Licking	43 min
Jul 10, 3:52 PM EDT	Special Weather Statement	ILN	Madison	38 min
Jul 10, 3:54 PM EDT	Severe Thunderstorm Warning	ILN	Franklin, Madison, Pickaway	36 min
Jul 10, 3:57 PM EDT	Special Weather Statement	ILN	Franklin	33 min
Jul 10, 3:57 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Franklin, Hocking, Pickaway	33 min
Jul 10, 4:00 PM EDT	Areal Flood Advisory	ILN	Fairfield, Licking	3 hr
Jul 10, 4:12 PM EDT	Flash Flood Warning	ILN	Franklin	3 hr
Jul 10, 4:29 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Hocking	31 min
Jul 10, 4:29 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Franklin, Licking, Pickaway	46 min
Jul 10, 4:34 PM EDT	Flash Flood Warning	ILN	Fairfield, Licking	3 hr
Jul 10, 4:39 PM EDT	Special Weather Statement	ILN	Franklin	36 min
Jul 10, 4:58 PM EDT	Severe Thunderstorm Warning	ILN	Hocking	32 min
Jul 10, 5:00 PM EDT	Special Weather Statement	ILN	Fairfield	15 min
Jul 10, 5:11 PM EDT	Areal Flood Advisory	ILN	Fairfield, Franklin, Hocking, Pickaway	3 hr
Jul 10, 5:14 PM EDT	Special Weather Statement	ILN	Fairfield, Hocking, Pickaway	46 min
Jul 10, 5:36 PM EDT	Special Weather Statement	ILN	Hocking	24 min
Jul 10, 5:41 PM EDT	Special Weather Statement	ILN	Franklin	49 min
Jul 10, 5:50 PM EDT	Flash Flood Warning	ILN	Fairfield, Hocking	3 hr
Jul 10, 5:56 PM EDT	Special Weather Statement	ILN	Hocking	64 min
Jul 10, 6:09 PM EDT	Severe Thunderstorm Warning	ILN	Hocking	22 min
Jul 10, 6:28 PM EDT	Special Weather Statement	ILN	Franklin	32 min
Jul 10, 7:56 PM EDT	Special Weather Statement	ILN	Mercer	49 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2017 Every severe thunderstorm warning 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.