Alert archive / Kansas / Tornado Warnings in 2017

Tornado Warning 19, NWS Topeka, KS

October 6, 2017Cloud County, Kansas

NWS Topeka, KS issued this tornado warning at Oct 6, 2017, 7:49 PM CDT for Cloud County, Kansas. It was in force for 26 min. 2 reports 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: Oct 6, 2017, 7:49 PM CDT (00:49 UTC)
Expired: Oct 6, 2017, 8:15 PM CDT
In force: 26 min
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Cloud County, KS

The radar

The Grand Island radar (KUEX), 107 km from the middle of the area, began a volume at 00:49 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
Oct 6, 7:58 PM CDT	TSTM WND DMG	Concordia, KS	MULTIPLE TREE LIMBS DOWN ACROSS THE CITY. RADAR ESTIMATED TIME.
Oct 6, 8:00 PM CDT	TSTM WND DMG	2 Nne Concordia, KS	PROPERTY OWNER REPORTED NUMEROUS OAK LIMBS BLOWN DOWN 6 INCHES IN DIAMETER. TIME ESTIMATED BY RADAR.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 6, 3:47 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Topeka, KS (KFOE), launched 00:00Z, 0.8 hours before the alert went out and 185 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: 773 J/kg
Mixed-layer CIN: -70 J/kg
Mixed-layer LCL: 955 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 278 m²/s²
0-3 km storm-relative helicity: 421 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 13.4

Open this sounding in Storm Lab

The text

As transmitted.

260 
WFUS53 KTOP 070049
TORTOP
KSC029-070115-
/O.NEW.KTOP.TO.W.0019.171007T0049Z-171007T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Topeka KS
749 PM CDT FRI OCT 6 2017

The National Weather Service in Topeka has issued a

* Tornado Warning for...
  Northern Cloud County in north central Kansas...

* Until 815 PM CDT
    
* At 749 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 5 miles southwest of Concordia, moving northeast at 30
  mph.

  HAZARD...Tornado and quarter size hail. 

  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...
  Concordia around 800 PM CDT. 

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 3965 9768 3965 9756 3951 9742 3943 9777
      3954 9784
TIME...MOT...LOC 0049Z 232DEG 26KT 3952 9773 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Cohen

2 follow-up statements

923 
WWUS53 KTOP 070058
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
758 PM CDT FRI OCT 6 2017

KSC029-070115-
/O.CON.KTOP.TO.W.0019.000000T0000Z-171007T0115Z/
Cloud-
758 PM CDT FRI OCT 6 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
NORTHEASTERN CLOUD COUNTY...
    
At 758 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Concordia, moving northeast at 35 mph.

HAZARD...Tornado and quarter size hail. 

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
northeastern Cloud 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 3952 9743 3946 9773 3957 9779 3965 9768
      3965 9756
TIME...MOT...LOC 0058Z 232DEG 29KT 3956 9766 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Cohen

816 
WWUS53 KTOP 070111
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
811 PM CDT FRI OCT 6 2017

KSC029-070119-
/O.EXP.KTOP.TO.W.0019.000000T0000Z-171007T0115Z/
Cloud-
811 PM CDT FRI OCT 6 2017

...THE TORNADO WARNING FOR NORTHEASTERN CLOUD COUNTY WILL EXPIRE AT
815 PM CDT...
                
The tornado risk is decreasing, thus the Tornado Warning will be 
allow to expire. However, a Severe Thunderstorm Warning remains in 
effect.

Also, a severe thunderstorm watch remains in effect until 1100 PM 
CDT for north central Kansas.

LAT...LON 3952 9743 3946 9773 3957 9779 3965 9768
      3965 9756
TIME...MOT...LOC 0109Z 232DEG 26KT 3961 9758 

$$

Cohen

The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 6, 7:16 PM CDT	Tornado Warning	TOP	Cloud, Ottawa	29 min
Oct 6, 7:44 PM CDT	Severe Thunderstorm Warning	TOP	Cloud, Ottawa	61 min
Oct 6, 8:21 PM CDT	Severe Thunderstorm Warning	TOP	Clay, Republic, Washington	39 min
Oct 6, 8:44 PM CDT	Special Weather Statement	TOP	Washington	31 min
Oct 6, 8:56 PM CDT	Severe Thunderstorm Warning	TOP	Ottawa	34 min
Oct 6, 9:17 PM CDT	Special Weather Statement	TOP	Clay, Dickinson, Geary, Riley	28 min
Oct 6, 9:21 PM CDT	Tornado Warning	TOP	Clay, Dickinson, Ottawa	9 min
Oct 6, 9:47 PM CDT	Special Weather Statement	TOP	Geary, Pottawatomie, Riley	43 min
Oct 6, 9:55 PM CDT	Severe Thunderstorm Warning	TOP	Geary, Pottawatomie, Riley, Wabaunsee	35 min
Oct 6, 10:17 PM CDT	Severe Thunderstorm Warning	TOP	Jackson, Marshall, Nemaha, Pottawatomie	28 min
Oct 7, 3:34 AM CDT	River Flood Warning	TOP	Marshall	44 hr
Oct 7, 2:20 PM CDT	River Flood Warning	TOP	Clay	19 hr

Nearby

Tornado Warnings in Kansas, 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.