Alert archive / Kansas / Tornado Warnings in 2008

Tornado Warning 33, NWS Topeka, KS

July 29, 2008Lyon County, Kansas

NWS Topeka, KS issued this tornado warning at Jul 29, 2008, 5:58 PM CDT for Lyon County, Kansas. It was in force for 32 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
Jul 29, 2008, 5:58 PM CDT (22:58 UTC)
Expired
Jul 29, 2008, 6:30 PM CDT
In force
32 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon

County Lyon County, KS

The radar

The Topeka radar (KTWX), 87 km from the middle of the area, began a volume at 22:59 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 (KTOP), launched 12:00Z, 11.0 hours before the alert went out and 94 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 2008-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 825 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 2008-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -44 square meters per square second.1939Sfc1 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
825 J/kg
Mixed-layer CIN
-116 J/kg
Mixed-layer LCL
1064 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-44 m²/s²
0-3 km storm-relative helicity
21 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.

000 
WFUS53 KTOP 292258
TORTOP
KSC111-292330-
/O.NEW.KTOP.TO.W.0033.080729T2258Z-080729T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
558 PM CDT TUE JUL 29 2008

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

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

* UNTIL 630 PM CDT

* AT 556 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 5 MILES SOUTH OF 
OLPE...OR 15 MILES SOUTH OF EMPORIA...MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF SOUTHEASTERN LYON COUNTY SOUTH AND SOUTHWEST 
OF HARTFORD...

IF A TORNADO APPROACHES...GO TO A BASEMENT OR SEEK SHELTER IN A
HALLWAY OR CLOSET ON THE LOWEST FLOOR OF THE BUILDING. USE BLANKETS
OR PILLOWS TO COVER YOUR HEAD AND ALWAYS STAY AWAY FROM WINDOWS.

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

LAT...LON 3822 9617 3831 9595 3825 9595 3817 9595
      3817 9614
TIME...MOT...LOC 2257Z 248DEG 17KT 3820 9612

$$

BLAIR
3 follow-up statements
000 
WWUS53 KTOP 292306
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
606 PM CDT TUE JUL 29 2008

KSC111-292330-
/O.CON.KTOP.TO.W.0033.000000T0000Z-080729T2330Z/
LYON-
604 PM CDT TUE JUL 29 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
SOUTHEASTERN LYON COUNTY...

AT 552 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD 
ABOUT 4 TO 5 MILES SOUTH OF OLPE.  THE SPOTTER REPORTED THE FUNNEL 
HAD GONE UP IN THE CLOUD. AT 602 PM...DOPPLER RADAR INDICATED THE 
AREA OF STRONG ROTATION WAS LOCATED ABOUT 5 MILES SOUTHEAST OF 
OLPE..OR 14 MILES SOUTH SOUTHEAST OF EMPORIA...MOVING NORTHEAST AT 
19 MPH.

LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF SOUTHEASTERN LYON COUNTY...

IF A TORNADO APPROACHES...GO TO A BASEMENT OR SEEK SHELTER IN A
HALLWAY OR CLOSET ON THE LOWEST FLOOR OF THE BUILDING. USE BLANKETS
OR PILLOWS TO COVER YOUR HEAD AND ALWAYS STAY AWAY FROM WINDOWS.

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

LAT...LON 3818 9613 3823 9615 3823 9614 3831 9595
      3821 9595 3820 9595 3818 9595 3817 9596
TIME...MOT...LOC 2304Z 243DEG 17KT 3822 9609

$$

BLAIR
000 
WWUS53 KTOP 292321
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
621 PM CDT TUE JUL 29 2008

KSC111-292330-
/O.CON.KTOP.TO.W.0033.000000T0000Z-080729T2330Z/
LYON-
620 PM CDT TUE JUL 29 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
SOUTHEASTERN LYON COUNTY...

AT 617 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS 
STORM WAS LOCATED ABOUT 5 MILES SOUTHWEST OF HARTFORD...OR 14 MILES 
SOUTHEAST OF EMPORIA...MOVING NORTHEAST AT 21 MPH.

LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF SOUTHEASTERN LYON COUNTY TO THE SOUTHWEST AND 
SOUTH OF HARTFORD...

IF A TORNADO APPROACHES...GO TO A BASEMENT OR SEEK SHELTER IN A
HALLWAY OR CLOSET ON THE LOWEST FLOOR OF THE BUILDING. USE BLANKETS
OR PILLOWS TO COVER YOUR HEAD AND ALWAYS STAY AWAY FROM WINDOWS.

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

LAT...LON 3823 9603 3824 9605 3827 9605 3831 9595
      3829 9595 3828 9595 3827 9595 3825 9595
      3822 9596
TIME...MOT...LOC 2320Z 244DEG 18KT 3826 9599

$$

BLAIR
000 
WWUS53 KTOP 292331
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
631 PM CDT TUE JUL 29 2008

KSC111-292341-
/O.EXP.KTOP.TO.W.0033.000000T0000Z-080729T2330Z/
LYON-
631 PM CDT TUE JUL 29 2008

...THE TORNADO WARNING FOR SOUTHEASTERN LYON COUNTY HAS EXPIRED...

AT 631 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE 
STORM WHICH HAD PROMPTED THE TORNADO WARNING FOR SOUTHERN LYON 
COUNTY HAD EXITED THE WARNED AREA...THUS THE WARNING HAS BEEN 
ALLOWED TO EXPIRE.

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

LAT...LON 3823 9603 3824 9605 3827 9605 3831 9595
      3829 9595 3828 9595 3827 9595 3825 9595
      3822 9596
TIME...MOT...LOC 2321Z 244DEG 18KT 3826 9598

$$

BLAIR

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 5:15 PM CDTTornado WarningTOPLyon45 min

Nearby

Tornado Warnings in Kansas, 2008Every tornado warning in 2008Tornadoes in 2008

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.