Alert archive / Ohio / Tornado Warnings in 2017

Tornado Warning 27, NWS Wilmington, OH

July 10, 2017Mercer County, Ohio

NWS Wilmington, OH issued this tornado warning at Jul 10, 2017, 8:26 PM EDT for Mercer County, Ohio. It was in force for 34 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 10, 2017, 8:26 PM EDT (00:26 UTC)
Expired: Jul 10, 2017, 9:00 PM EDT
In force: 34 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Mercer County, OH

The radar

The Northern Indiana radar (KIWX), 120 km from the middle of the area, began a volume at 00:30 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.

What was reported inside it

Time	Report	Where	Remark
Jul 10, 8:33 PM EDT	FUNNEL CLOUD	2 W Rockford, OH	FUNNEL CLOUD REPORTED WEST SIDE OF ROCKFORD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.4 hours before the alert went out and 152 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: 299 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 1494 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 192 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

As transmitted.

355 
WFUS51 KILN 110026
TORILN
OHC107-110100-
/O.NEW.KILN.TO.W.0027.170711T0026Z-170711T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Wilmington OH
826 PM EDT MON JUL 10 2017

The National Weather Service in Wilmington has issued a

* Tornado Warning for...
  Northern Mercer County in west central Ohio...

* Until 900 PM EDT.

* At 826 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Rockford, moving southeast at 20 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* Locations impacted include...
  Celina, Rockford, Mendon, Neptune and Tama. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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 4051 8446 4065 8480 4071 8480 4073 8479
      4073 8446
TIME...MOT...LOC 0026Z 304DEG 16KT 4071 8470 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

Novak

4 follow-up statements

704 
WWUS51 KILN 110033 RRA
SVSILN

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

OHC107-110100-
/O.CON.KILN.TO.W.0027.000000T0000Z-170711T0100Z/
Mercer OH-
833 PM EDT MON JUL 10 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR NORTHERN
MERCER COUNTY...
    
At 833 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Rockford, moving southeast at 20 mph.

HAZARD...Tornado. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

Locations impacted include...
Celina, Rockford, Mendon, Neptune and Tama. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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 4051 8446 4063 8475 4067 8475 4073 8474
      4073 8446
TIME...MOT...LOC 0033Z 304DEG 16KT 4069 8466 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Novak

675 
WWUS51 KILN 110038
SVSILN

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

OHC107-110100-
/O.CON.KILN.TO.W.0027.000000T0000Z-170711T0100Z/
Mercer OH-
838 PM EDT MON JUL 10 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR NORTHERN
MERCER COUNTY...
      
At 837 PM EDT, radar indicated that a tornado-producing storm was
located over Rockford, moving southeast at 20 mph.

HAZARD...Damaging tornado. 

SOURCE...Public confirmed tornado touched down near Rockford around 
         837 pm but has now lifted.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

Locations impacted include...
Celina, Rockford, Mendon, Neptune and Tama. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

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 4062 8473 4066 8472 4073 8471 4073 8446
      4051 8446
TIME...MOT...LOC 0037Z 304DEG 16KT 4068 8464 

TORNADO...OBSERVED
HAIL...<.75IN

$$

Novak

634 
WWUS51 KILN 110046
SVSILN

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

OHC107-110100-
/O.CON.KILN.TO.W.0027.000000T0000Z-170711T0100Z/
Mercer OH-
846 PM EDT MON JUL 10 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR
NORTHEASTERN MERCER COUNTY...
    
At 846 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Rockford, moving southeast at 20 mph.

HAZARD...Tornado. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

Locations impacted include...
Celina, Mendon, Neptune and Tama. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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 4059 8465 4066 8464 4073 8464 4073 8446
      4051 8446
TIME...MOT...LOC 0046Z 304DEG 16KT 4066 8459 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Novak

259 
WWUS51 KILN 110100
SVSILN

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

OHC107-110109-
/O.EXP.KILN.TO.W.0027.000000T0000Z-170711T0100Z/
Mercer OH-
900 PM EDT MON JUL 10 2017

...THE TORNADO WARNING FOR NORTHEASTERN MERCER COUNTY WILL EXPIRE AT
900 PM EDT...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

Please report previous tornadoes, 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.

LAT...LON 4059 8465 4066 8464 4073 8464 4073 8446
      4051 8446
TIME...MOT...LOC 0059Z 304DEG 16KT 4063 8453 

$$

Novak

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 8:12 PM EDT	Severe Thunderstorm Warning	ILN	Mercer	48 min
Jul 10, 8:58 PM EDT	Severe Thunderstorm Warning	ILN	Auglaize, Mercer, Shelby	25 min
Jul 10, 9:22 PM EDT	Special Weather Statement	ILN	Auglaize	38 min
Jul 10, 9:43 PM EDT	Special Weather Statement	ILN	Auglaize	32 min
Jul 10, 9:56 PM EDT	Special Weather Statement	ILN	Auglaize	34 min
Jul 10, 10:19 PM EDT	Severe Thunderstorm Warning	ILN	Auglaize, Mercer	41 min
Jul 10, 11:00 PM EDT	Special Weather Statement	ILN	Auglaize, Shelby	30 min
Jul 10, 11:13 PM EDT	Areal Flood Advisory	ILN	Auglaize, Mercer	2 hr
Jul 10, 11:54 PM EDT	Flash Flood Warning	ILN	Auglaize	3 hr
Jul 11, 1:07 AM EDT	Special Weather Statement	ILN	Franklin	23 min
Jul 11, 1:17 AM EDT	Areal Flood Advisory	ILN	Champaign, Miami	3 hr
Jul 11, 1:49 AM EDT	Areal Flood Advisory	ILN	Champaign, Clark	3 hr
Jul 11, 2:10 AM EDT	Areal Flood Advisory	ILN	Madison, Pickaway	3 hr
Jul 11, 2:25 AM EDT	Areal Flood Advisory	ILN	Clark, Madison	3 hr
Jul 11, 2:41 AM EDT	Areal Flood Advisory	ILN	Clark, Fayette, Greene, Madison	3 hr
Jul 11, 3:29 AM EDT	Areal Flood Advisory	ILN	Fairfield, Pickaway	3 hr
Jul 11, 3:30 AM EDT	Flash Flood Watch	ILN	Auglaize, Butler, Champaign, Clark, Clinton, Darke and 19 more	15 hr
Jul 11, 3:40 AM EDT	Flash Flood Warning	ILN	Fayette, Madison, Pickaway	3 hr
Jul 11, 6:39 AM EDT	Areal Flood Warning	ILN	Fayette, Madison, Pickaway	12 hr
Jul 11, 9:53 AM EDT	Special Weather Statement	ILN	Greene	37 min
Jul 11, 10:31 AM EDT	Special Weather Statement	ILN	Greene	29 min
Jul 11, 2:17 PM EDT	Severe Thunderstorm Warning	ILN	Hamilton	28 min
Jul 11, 2:25 PM EDT	Special Weather Statement	ILN	Butler, Miami, Montgomery, Preble	35 min
Jul 11, 2:28 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Darke, Miami, Montgomery, Preble, Warren	32 min
Jul 11, 2:41 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Clark, Clinton, Greene, Miami, Montgomery and 1 more	49 min
Jul 11, 3:30 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Greene, Montgomery, Warren	34 min

Nearby

Tornado Warnings in Ohio, 2017 Every tornado warning in 2017 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.