Alert archive / Kansas / Tornado Warnings in 2007

Tornado Warning 11, NWS Topeka, KS

April 27, 2007Douglas County, Kansas

NWS Topeka, KS issued this tornado warning at Apr 27, 2007, 4:57 PM CDT for Douglas County, Kansas. It was in force for 16 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
Apr 27, 2007, 4:57 PM CDT (21:57 UTC)
Expired
Apr 27, 2007, 5:13 PM CDT
In force
16 min
Issued by
NWS Topeka, KS
Area
Counties, with a storm outline in the text

County Douglas County, KS

The radar

The Pleasant Hill radar (KEAX), 74 km from the middle of the area, began a volume at 21:56 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, 10.0 hours before the alert went out and 51 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 2007-04-27Temperature 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 2007-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 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
1733 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
85 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 272158
TORTOP
KSC045-272230-
/O.NEW.KTOP.TO.W.0011.070427T2157Z-070427T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
457 PM CDT FRI APR 27 2007

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

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

* UNTIL 530 PM CDT

* AT 455 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER
  SOUTHEASTERN DOUGLAS COUNTY...OR ABOUT 14 MILES SOUTHEAST OF
  LAWRENCE...MOVING EAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF THE INDICATED COUNTY...

AT 457 PM CDT...SPOTTERS REPORTED A FUNNEL CLOUD NEAR BALDWIN CITY.

FOR YOUR SAFETY...GO TO A STORM SHELTER OR BASEMENT NOW TORNADOES
MAY HAVE WINDS GREATER THAN 100 MPH. AVOID OVERPASSES AND WINDOWS...
AND COVER YOUR HEAD.

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

LAT...LON 3879 9516 3882 9516 3884 9516 3883 9511
      3883 9507 3882 9505 3874 9506 3874 9507
      3875 9516

$$
2 follow-up statements
000 
WWUS53 KTOP 272207
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
506 PM CDT FRI APR 27 2007

KSC045-272230-
/O.CON.KTOP.TO.W.0011.000000T0000Z-070427T2230Z/
DOUGLAS-
506 PM CDT FRI APR 27 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR EXTREME
SOUTHEASTERN DOUGLAS COUNTY...

AT 505 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
STORM WAS LOCATED OVER EXTREME SOUTHEASTERN DOUGLAS COUNTY...OR ABOUT
13 MILES WEST OF SPRING HILL...MOVING SOUTHEAST AT 15 MPH.

THE STORM SHOULD EXIT EXTREME SOUTHEAST DOUGLAS COUNTY IN THE NEXT 5 
MINUTES.

FOR YOUR SAFETY...GO TO A STORM SHELTER OR BASEMENT NOW TORNADOES
MAY HAVE WINDS GREATER THAN 100 MPH. AVOID OVERPASSES AND WINDOWS...
AND COVER YOUR HEAD.

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

LAT...LON 3875 9511 3879 9510 3879 9509 3879 9506
      3879 9505 3874 9506 3874 9507

$$
000 
WWUS53 KTOP 272213
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
513 PM CDT FRI APR 27 2007

KSC045-272223-
/O.CAN.KTOP.TO.W.0011.000000T0000Z-070427T2230Z/
DOUGLAS-
513 PM CDT FRI APR 27 2007

...THE TORNADO WARNING FOR EXTREME SOUTHEASTERN DOUGLAS COUNTY HAS
BEEN CANCELLED...

AT 513 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE 
SEVERE THUNDERSTORM WITH THE POSSIBLE TORNADO HAD EXITED DOUGLAS 
COUNTY...THUS THE WARNING HAS BEEN CANCELLED.

RADAR INDICATED THAT HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS WERE 
STILL POSSIBLE FROM THE THUNDERSTORMS DEVELOPING ACROSS SOUTHERN 
DOUGLAS COUNTY.

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

LAT...LON 3875 9511 3879 9510 3879 9509 3879 9506
      3879 9505 3874 9506 3874 9507

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 27, 5:20 PM CDTTornado WarningTOPFranklin22 min

Nearby

Tornado Warnings in Kansas, 2007Every tornado warning in 2007Tornadoes in 2007

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.