Alert archive / Kansas / Tornado Warnings in 2017

Tornado Warning 10, NWS Topeka, KS

May 18, 2017Morris County, Wabaunsee County, Kansas

NWS Topeka, KS issued this tornado warning at May 18, 2017, 5:30 PM CDT for Morris County, Wabaunsee County, Kansas. It was in force for 30 min. 4 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
May 18, 2017, 5:30 PM CDT (22:30 UTC)
Expired
May 18, 2017, 6:00 PM CDT
In force
30 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Tornado
Radar indicated
Hail
2.75 in

Counties Morris County, KS, Wabaunsee County, KS

The radar

The Topeka radar (KTWX), 31 km from the middle of the area, began a volume at 22:30 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

TimeReportWhereRemark
May 18, 6:03 PM CDTHAIL 1.75Alta Vista, KSVIA SOCIAL MEDIA.
May 18, 6:03 PM CDTHAIL 2Alta Vista, KSVIA SOCIAL MEDIA.
May 18, 6:06 PM CDTHAIL 1.753 W Volland, KS
May 18, 6:10 PM CDTHAIL 1Alta Vista, KSRADAR ESTIMATED. DELAYED REPORT.

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.

IssuedProductOfficeLasted
May 18, 3:00 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Topeka, KS (KFOE), launched 12:00Z, 10.5 hours before the alert went out and 78 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, Topeka, KS at 12:00Z on 2017-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Topeka, KS at 12:00Z on 2017-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 204 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1033 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
204 m²/s²
0-3 km storm-relative helicity
335 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

750 
WFUS53 KTOP 182230
TORTOP
KSC127-197-182300-
/O.NEW.KTOP.TO.W.0010.170518T2230Z-170518T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Topeka KS
530 PM CDT THU MAY 18 2017

The National Weather Service in Topeka has issued a

* Tornado Warning for...
  Northeastern Morris County in east central Kansas...
  Southwestern Wabaunsee County in east central Kansas...

* Until 600 PM CDT
    
* At 530 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 4 miles northwest of Council Grove Lake, moving
  northeast at 30 mph.

  HAZARD...Tornado and baseball 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...
  Alta Vista around 550 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This Tornado Warning replaces the Severe Thunderstorm Warning issued
for the same area.

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 3867 9657 3872 9665 3887 9652 3887 9650
      3890 9650 3896 9645 3886 9628
TIME...MOT...LOC 2230Z 217DEG 26KT 3874 9656 

TORNADO...RADAR INDICATED
HAIL...2.75IN

$$

BB
2 follow-up statements
266 
WWUS53 KTOP 182253
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
553 PM CDT THU MAY 18 2017

KSC127-197-182300-
/O.CON.KTOP.TO.W.0010.000000T0000Z-170518T2300Z/
Morris-Wabaunsee-
553 PM CDT THU MAY 18 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR
NORTHEASTERN MORRIS AND SOUTHWESTERN WABAUNSEE COUNTIES...
    
At 552 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Alta Vista, moving northeast at 20 mph.

HAZARD...Tornado and two inch 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 Morris and southwestern Wabaunsee Counties.

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 3875 9645 3878 9657 3887 9650 3896 9645
      3886 9628
TIME...MOT...LOC 2252Z 217DEG 18KT 3882 9647 

TORNADO...RADAR INDICATED
HAIL...2.00IN

$$

BB
907 
WWUS53 KTOP 182258
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
558 PM CDT THU MAY 18 2017

KSC127-197-182308-
/O.EXP.KTOP.TO.W.0010.000000T0000Z-170518T2300Z/
Morris-Wabaunsee-
558 PM CDT THU MAY 18 2017

...THE TORNADO WARNING FOR NORTHEASTERN MORRIS AND SOUTHWESTERN
WABAUNSEE COUNTIES WILL EXPIRE AT 600 PM CDT...
    
The tornado threat has diminished for the time being 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. However small hail and gusty winds are still possible 
with this thunderstorm.

A tornado watch remains in effect until 1000 PM CDT for east central
Kansas.


LAT...LON 3875 9645 3878 9657 3887 9650 3896 9645
      3886 9628
TIME...MOT...LOC 2258Z 217DEG 26KT 3884 9645 

$$

BB

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 1:35 PM CDTFlash Flood WatchTOPAnderson, Brown, Clay, Cloud, Coffey, Dickinson and 17 more38 hr
May 18, 4:18 PM CDTSpecial Weather StatementTOPMorris27 min
May 18, 4:31 PM CDTSevere Thunderstorm WarningTOPGeary, Morris29 min
May 18, 4:38 PM CDTSevere Thunderstorm WarningTOPMorris37 min
May 18, 4:54 PM CDTSpecial Weather StatementTOPDickinson36 min
May 18, 4:57 PM CDTSevere Thunderstorm WarningTOPGeary33 min
May 18, 5:09 PM CDTSevere Thunderstorm WarningTOPGeary, Morris, Wabaunsee51 min
May 18, 5:13 PM CDTSevere Thunderstorm WarningTOPRiley31 min
May 18, 5:32 PM CDTSpecial Weather StatementTOPDouglas, Shawnee28 min
May 18, 5:45 PM CDTSevere Thunderstorm WarningTOPClay, Dickinson, Geary, Ottawa45 min
May 18, 5:56 PM CDTSevere Thunderstorm WarningTOPGeary, Morris, Riley, Wabaunsee49 min
May 18, 6:27 PM CDTTornado WarningTOPDickinson, Ottawa33 min
May 18, 6:29 PM CDTSevere Thunderstorm WarningTOPClay, Dickinson, Geary, Riley46 min
May 18, 6:37 PM CDTTornado Warning Tornado observedTOPClay, Dickinson, Geary, Riley23 min
May 18, 6:39 PM CDTSevere Thunderstorm WarningTOPWabaunsee51 min
May 18, 6:41 PM CDTSevere Thunderstorm WarningTOPJackson, Pottawatomie, Shawnee, Wabaunsee49 min
May 18, 6:50 PM CDTSevere Thunderstorm WarningTOPJackson, Jefferson, Shawnee40 min
May 18, 6:54 PM CDTFlash Flood WarningTOPDickinson4 hr
May 18, 6:58 PM CDTSevere Thunderstorm WarningTOPDickinson, Ottawa32 min
May 18, 6:58 PM CDTTornado WarningTOPGeary, Riley32 min

Nearby

Tornado Warnings in Kansas, 2017Every tornado warning in 2017Tornadoes 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.