Alert archive / Kansas / Tornado Warnings in 2012

Tornado Warning 8, NWS Topeka, KS

March 28, 2012Lyon County, Kansas

NWS Topeka, KS issued this tornado warning at Mar 28, 2012, 8:44 PM CDT for Lyon County, Kansas. It was in force for 31 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 28, 2012, 8:44 PM CDT (01:44 UTC)
Expired
Mar 28, 2012, 9:15 PM CDT
In force
31 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon

County Lyon County, KS

The radar

The Topeka radar (KTWX), 46 km from the middle of the area, began a volume at 01:44 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 28, 5:48 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 1.7 hours before the alert went out and 62 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 2012-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1317 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 2012-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.193958Sfc1 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
1317 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
1400 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
180 m²/s²
Significant tornado parameter
0.5
Supercell composite
6.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

395 
WFUS53 KTOP 290144
TORTOP
KSC111-290215-
/O.NEW.KTOP.TO.W.0008.120329T0144Z-120329T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
844 PM CDT WED MAR 28 2012

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL LYON COUNTY IN EAST CENTRAL KANSAS...

* UNTIL 915 PM CDT

* AT 840 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL 
CLOUD.   THIS SEVERE STORM WAS LOCATED OVER CENTRAL LYON COUNTY...OR 
6 MILES NORTHEAST OF AMERICUS...MOVING EAST AT 10 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF CENTRAL LYON COUNTY BETWEEN AMERICUS AND 
ADMIRE...

THIS INCLUDES THE KANSAS TURNPIKE BETWEEN MILE MARKERS 137 AND 145.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOS ARE DIFFICULT TO SEE AT NIGHT. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

LARGE DESTRUCTIVE HAIL IS ALSO LIKELY ALONG AND NORTH OF THE EXPECTED
TORNADO TRACK.

STAY TUNED TO WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE LATEST
SEVERE WEATHER INFORMATION.

&&

LAT...LON 3864 9605 3852 9605 3853 9624 3863 9622
TIME...MOT...LOC 0143Z 267DEG 8KT 3857 9618
HAIL 2.00IN

$$
1 follow-up statement
375 
WWUS53 KTOP 290156
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
856 PM CDT WED MAR 28 2012

KSC111-290215-
/O.CON.KTOP.TO.W.0008.000000T0000Z-120329T0215Z/
LYON-
856 PM CDT WED MAR 28 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR CENTRAL
LYON COUNTY...

AT 849 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM WITH STRONG ROTATION CAPABLE OF
PRODUCING A TORNADO.  THIS STORM WAS LOCATED OVER CENTRAL LYON 
COUNTY...OR 10 MILES NORTH NORTHEAST OF EMPORIA...MOVING EAST AT 10 
MPH.

LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF CENTRAL LYON COUNTY 5 TO 10 MILES SOUTH OF 
ADMIRE...

THIS INCLUDES THE KANSAS TURNPIKE BETWEEN MILE MARKERS 137 AND 144.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOS ARE DIFFICULT TO SEE AT NIGHT. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

THIS STORM HAS A HISTORY OF PRODUCING TORNADOES.  FOUR CHASERS SAW A 
TORNADO TOUCH DOWN ABOUT 832 PM CDT NORTH OF AMERICUS.  TAKE COVER 
IN A BASEMENT OR STORM SHELTER NOW...AND PROTECT YOURSELF FROM 
FLYING DEBRIS!

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE
LATEST SEVERE WEATHER INFORMATION.

&&

LAT...LON 3853 9618 3863 9619 3864 9605 3852 9605
TIME...MOT...LOC 0154Z 261DEG 9KT 3855 9614
HAIL 2.00IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 28, 7:12 PM CDTSevere Thunderstorm WarningTOPLyon, Morris48 min
Mar 28, 7:20 PM CDTSevere Thunderstorm WarningTOPLyon, Osage, Wabaunsee40 min
Mar 28, 7:54 PM CDTSevere Thunderstorm WarningTOPPottawatomie, Wabaunsee51 min
Mar 28, 7:58 PM CDTSevere Thunderstorm WarningTOPLyon47 min
Mar 28, 7:59 PM CDTSevere Thunderstorm WarningTOPCoffey61 min
Mar 28, 8:13 PM CDTSevere Thunderstorm WarningTOPRepublic28 min
Mar 28, 8:20 PM CDTTornado WarningTOPLyon25 min
Mar 28, 8:25 PM CDTSevere Thunderstorm WarningTOPRepublic21 min
Mar 28, 8:30 PM CDTSevere Thunderstorm WarningTOPShawnee, Wabaunsee45 min
Mar 28, 8:31 PM CDTSevere Thunderstorm WarningTOPMarshall, Nemaha, Pottawatomie30 min
Mar 28, 8:37 PM CDTFlash Flood WarningTOPLyon3 hr
Mar 28, 9:06 PM CDTSevere Thunderstorm WarningTOPJackson39 min
Mar 28, 9:14 PM CDTSevere Thunderstorm WarningTOPLyon, Osage25 min
Mar 28, 9:40 PM CDTSpecial Weather StatementTOPBrown, Nemaha35 min
Mar 28, 9:54 PM CDTSevere Thunderstorm WarningTOPNemaha36 min
Mar 28, 10:32 PM CDTSpecial Weather StatementTOPNemaha43 min
Mar 28, 10:47 PM CDTSevere Thunderstorm WarningTOPNemaha28 min
Mar 28, 11:15 PM CDTAreal Flood WarningTOPLyon3 hr
Mar 28, 11:16 PM CDTSevere Thunderstorm WarningTOPNemaha44 min
Mar 29, 2:50 AM CDTSpecial Weather StatementTOPBrown25 min

Nearby

Tornado Warnings in Kansas, 2012Every tornado warning in 2012Tornadoes in 2012

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.