Alert archive / Kansas / Tornado Warnings in 2015

Tornado Warning 20, NWS Topeka, KS

May 15, 2015Brown County, Jackson County, Kansas

NWS Topeka, KS issued this tornado warning at May 15, 2015, 6:23 PM CDT for Brown County, Jackson County, Kansas. It was in force for 22 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
May 15, 2015, 6:23 PM CDT (23:23 UTC)
Expired
May 15, 2015, 6:45 PM CDT
In force
22 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Tornado
Observed
Hail
0.0 in

Counties Brown County, KS, Jackson County, KS

The radar

The Topeka radar (KTWX), 92 km from the middle of the area, began a volume at 23:24 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 nearest sounding before it

Topeka, KS (KFOE), launched 12:00Z, 11.4 hours before the alert went out and 73 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 2015-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1804 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 12:00Z on 2015-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 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
1804 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
771 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

141 
WFUS53 KTOP 152323
TORTOP
KSC013-085-152345-
/O.NEW.KTOP.TO.W.0020.150515T2323Z-150515T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
623 PM CDT FRI MAY 15 2015

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL BROWN COUNTY IN NORTHEAST KANSAS...
  NORTHEASTERN JACKSON COUNTY IN NORTHEAST KANSAS...

* UNTIL 645 PM CDT

* AT 621 PM CDT...A CONFIRMED TORNADO WAS LOCATED JUST SOUTHEAST OF  
NETAWAKA...AND MOVING NORTHEAST AT 15 MPH.

  HAZARD...TORNADO.

  SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO.

  IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES.

* THE TORNADO WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN JACKSON 
AND SOUTH CENTRAL BROWN COUNTIES TO THE WEST OF HORTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW. MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE
CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3971 9556 3966 9553 3965 9554 3965 9556
      3963 9556 3960 9562 3959 9570 3971 9565
TIME...MOT...LOC 2322Z 216DEG 14KT 3961 9566

TORNADO...OBSERVED
HAIL...0.00IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 5:06 AM CDTSpecial Weather StatementTOPRepublic24 min
May 15, 8:48 AM CDTSpecial Weather StatementTOPMarshall27 min
May 15, 6:44 PM CDTTornado WarningTOPBrown31 min

Nearby

Tornado Warnings in Kansas, 2015Every tornado warning in 2015Tornadoes in 2015

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.