Alert archive / Indiana / Tornado Warnings in 2018

Tornado Warning 7, NWS Northern Indiana

August 7, 2018Whitley County, Indiana

NWS Northern Indiana issued this tornado warning at Aug 7, 2018, 8:26 PM EDT for Whitley County, Indiana. 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
Aug 7, 2018, 8:26 PM EDT (00:26 UTC)
Expired
Aug 7, 2018, 9:00 PM EDT
In force
34 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Whitley County, IN

The radar

The Northern Indiana radar (KIWX), 26 km from the middle of the area, began a volume at 00:29 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

TimeReportWhereRemark
Aug 7, 8:26 PM EDTFUNNEL CLOUD3 W Columbia City, INDEPUTY EM REPORTED ROTATING WALL CLOUD AND A FUNNEL CLOUD. FUNNEL WAS OBSERVED 1-2 MILES NORTH OF LOCATION.

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

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 0.4 hours before the alert went out and 242 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, Detroit, MI at 00:00Z on 2018-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 208 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, Detroit, MI at 00:00Z on 2018-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.19395878Sfc1 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
208 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1260 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
58 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

340 
WFUS53 KIWX 080026
TORIWX
INC183-080100-
/O.NEW.KIWX.TO.W.0007.180808T0026Z-180808T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Northern Indiana
826 PM EDT TUE AUG 7 2018

The National Weather Service in Northern Indiana  has issued a

* Tornado Warning for...
  Central Whitley County in northeastern Indiana...

* Until 900 PM EDT.
    
* At 826 PM EDT, a severe thunderstorm capable of producing a 
  tornado was located 1 mile northwest of Columbia City, moving east 
  at 15 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.

* This dangerous storm will be near...
  Columbia City around 835 PM EDT.
  Tri-lakes around 845 PM EDT.

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.

&&

LAT...LON 4115 8554 4119 8556 4124 8544 4117 8542
TIME...MOT...LOC 0026Z 255DEG 9KT 4117 8553 

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

$$

MARSILI
2 follow-up statements
795 
WWUS53 KIWX 080039
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
839 PM EDT TUE AUG 7 2018

INC183-080100-
/O.CON.KIWX.TO.W.0007.000000T0000Z-180808T0100Z/
Whitley IN-
839 PM EDT TUE AUG 7 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR CENTRAL
WHITLEY COUNTY...
    
At 837 PM EDT, a severe thunderstorm capable of producing a tornado
was located 1 mile north of Columbia City, moving east at 10 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.

This tornadic thunderstorm will remain over mainly rural 
areas of central Whitley County.

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.

&&

LAT...LON 4117 8551 4118 8552 4122 8543 4117 8542
TIME...MOT...LOC 0037Z 255DEG 9KT 4118 8549 

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

$$

MARSILI
611 
WWUS53 KIWX 080050
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
850 PM EDT TUE AUG 7 2018

INC183-080100-
/O.EXP.KIWX.TO.W.0007.000000T0000Z-180808T0100Z/
Whitley IN-
850 PM EDT TUE AUG 7 2018

...THE TORNADO WARNING FOR CENTRAL WHITLEY COUNTY WILL EXPIRE AT 900
PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with this thunderstorm.

LAT...LON 4117 8551 4118 8552 4122 8543 4117 8542
TIME...MOT...LOC 0050Z 255DEG 9KT 4119 8545 

$$

MARSILI

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 7, 8:12 PM EDTSpecial Weather StatementIWXLaPorte33 min
Aug 7, 8:49 PM EDTSpecial Weather StatementIWXSaint Joseph26 min
Aug 8, 12:47 PM EDTSpecial Weather StatementIWXElkhart28 min
Aug 8, 1:17 PM EDTSpecial Weather StatementIWXLaGrange28 min
Aug 8, 1:51 PM EDTSpecial Weather StatementIWXHuntington24 min
Aug 8, 2:02 PM EDTSpecial Weather StatementIWXWhitley28 min
Aug 8, 2:11 PM EDTSevere Thunderstorm WarningIWXAllen, Whitley34 min
Aug 8, 2:25 PM EDTSpecial Weather StatementIWXStarke35 min
Aug 8, 2:30 PM EDTSpecial Weather StatementIWXMiami30 min
Aug 8, 2:37 PM EDTSpecial Weather StatementIWXDeKalb38 min
Aug 8, 2:40 PM EDTSpecial Weather StatementIWXSteuben50 min
Aug 8, 2:46 PM EDTSpecial Weather StatementIWXAllen44 min
Aug 8, 2:54 PM EDTSpecial Weather StatementIWXMarshall36 min
Aug 8, 2:59 PM EDTSpecial Weather StatementIWXWabash31 min
Aug 8, 3:39 PM EDTSpecial Weather StatementIWXHuntington21 min
Aug 8, 3:46 PM EDTSpecial Weather StatementIWXAdams44 min
Aug 8, 4:22 PM EDTSpecial Weather StatementIWXKosciusko23 min
Aug 8, 4:34 PM EDTSpecial Weather StatementIWXAdams26 min
Aug 8, 4:50 PM EDTSpecial Weather StatementIWXWabash25 min
Aug 8, 5:08 PM EDTSevere Thunderstorm WarningIWXHuntington, Wabash40 min
Aug 8, 5:31 PM EDTSevere Thunderstorm WarningIWXGrant, Huntington, Wells44 min
Aug 8, 6:14 PM EDTSpecial Weather StatementIWXBlackford46 min

Nearby

Tornado Warnings in Indiana, 2018Every tornado warning in 2018Tornadoes in 2018

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.