Alert archive / Kansas / Tornado Warnings in 2017

Tornado Warning 8, NWS Topeka, KS

March 6, 2017Jackson County, Jefferson County, Shawnee County, Kansas

NWS Topeka, KS issued this tornado warning at Mar 6, 2017, 6:30 PM CST for Jackson County, Jefferson County, Shawnee County, Kansas. It was in force for 30 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
Mar 6, 2017, 6:30 PM CST (00:30 UTC)
Expired
Mar 6, 2017, 7:00 PM CST
In force
30 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Tornado
Observed
Hail
1.25 in

Counties Jackson County, KS, Jefferson County, KS, Shawnee County, KS

The radar

The Topeka radar (KTWX), 77 km from the middle of the area, began a volume at 00:34 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Mar 6, 2:27 PM CSTTornado WatchSPC8 hr

The nearest sounding before it

Topeka, KS (KFOE), launched 00:00Z, 0.5 hours before the alert went out and 34 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 00:00Z on 2017-03-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 707 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, Topeka, KS at 00:00Z on 2017-03-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 333 square meters per square second.1939587897117136Sfc1 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
707 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
1970 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
333 m²/s²
0-3 km storm-relative helicity
349 m²/s²
Significant tornado parameter
0.0
Supercell composite
9.4

Open this sounding in Storm Lab

The text

As transmitted.

653 
WFUS53 KTOP 070030 RRA
TORTOP
KSC085-087-177-070100-
/O.NEW.KTOP.TO.W.0008.170307T0030Z-170307T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Topeka KS
630 PM CST MON MAR 6 2017

The National Weather Service in Topeka has issued a

* Tornado Warning for...
  Jefferson County in northeastern Kansas...
  Northeastern Shawnee County in east central Kansas...
  Southeastern Jackson County in northeastern Kansas...

* Until 700 PM CST

* At 629 PM CST, a confirmed tornado was located 5 miles southwest of
  Meriden, moving east at 50 mph.

  HAZARD...Damaging tornado and half dollar size hail. 

  SOURCE...Weather spotters confirmed tornado. 3 miles northeast of 
  silver lake at 619 PM CST.

  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. 

* The tornado will be near...
  Meriden around 635 PM CST. 
  Ozawkie and Perry Lake around 645 PM CST. 
  Oskaloosa around 655 PM CST. 
  McLouth around 700 PM CST. 

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.

&&

LAT...LON 3913 9519 3911 9519 3910 9578 3941 9575
      3942 9566 3942 9518 3913 9518
TIME...MOT...LOC 0029Z 268DEG 42KT 3915 9567 

TORNADO...OBSERVED
HAIL...1.25IN

$$

Gargan
1 follow-up statement
471 
WWUS53 KTOP 070053
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
653 PM CST MON MAR 6 2017

KSC085-087-177-070101-
/O.EXP.KTOP.TO.W.0008.000000T0000Z-170307T0100Z/
Jefferson-Shawnee-Jackson-
653 PM CST MON MAR 6 2017

...THE TORNADO WARNING FOR JEFFERSON...NORTHEASTERN SHAWNEE AND
SOUTHEASTERN JACKSON COUNTIES WILL EXPIRE AT 700 PM CST...
    
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.

A tornado watch remains in effect until 1000 PM CST for northeastern
and east central Kansas.

Remember, a Severe Thunderstorm Warning still remains in effect for
the warned area until 730 PM.

LAT...LON 3913 9519 3911 9519 3910 9578 3941 9575
      3942 9566 3942 9518 3913 9518
TIME...MOT...LOC 0051Z 268DEG 42KT 3916 9536 

$$

Gargan

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 6, 6:05 PM CSTTornado WarningTOPLyon, Morris, Wabaunsee25 min
Mar 6, 6:19 PM CSTTornado WarningTOPShawnee26 min
Mar 6, 6:30 PM CSTTornado WarningTOPLyon, Osage, Shawnee, Wabaunsee30 min
Mar 6, 6:35 PM CSTSevere Thunderstorm WarningTOPCoffey, Lyon, Osage25 min
Mar 6, 6:47 PM CSTSevere Thunderstorm WarningTOPDouglas, Jefferson, Osage, Shawnee43 min
Mar 6, 6:49 PM CSTSevere Thunderstorm WarningTOPDouglas, Franklin, Lyon, Osage56 min
Mar 6, 6:56 PM CSTSevere Thunderstorm WarningTOPAnderson, Coffey, Franklin, Lyon, Osage64 min
Mar 6, 7:27 PM CSTSevere Thunderstorm WarningTOPDouglas18 min
Mar 6, 7:42 PM CSTSpecial Weather StatementTOPFranklin18 min
Mar 6, 7:54 PM CSTSevere Thunderstorm WarningTOPAnderson, Coffey, Franklin32 min
Mar 7, 3:27 AM CSTWind AdvisoryTOPAnderson, Brown, Clay, Cloud, Coffey, Dickinson and 17 more15 hr
Mar 7, 3:30 PM CSTFire Weather WatchTOPAnderson, Brown, Coffey, Dickinson, Douglas, Franklin and 12 more12 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.