Alert archive / Kansas / Tornado Warnings in 2008

Tornado Warning 53, NWS Kansas City, MO

September 12, 2008Johnson County, Kansas

NWS Kansas City, MO issued this tornado warning at Sep 12, 2008, 5:13 PM CDT for Johnson County, Kansas. It was in force for 47 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Sep 12, 2008, 5:13 PM CDT (22:13 UTC)
Expired: Sep 12, 2008, 6:00 PM CDT
In force: 47 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon

County Johnson County, KS

The radar

The Pleasant Hill radar (KEAX), 57 km from the middle of the area, began a volume at 22:15 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.

What was reported inside it

Time	Report	Where	Remark
Sep 12, 5:13 PM CDT	TORNADO	3 Sw De Soto, KS	TORNADO REPORTED NEAR 103RD AND SUNFLOWER IN CLEARVIEW CITY.
Sep 12, 5:25 PM CDT	TORNADO	2 E De Soto, KS	RELAYED FROM WFO TOP FROM KANSAS STATE TROOPER AT 83RD AND CEDAR CREEK.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
Sep 12, 4:28 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 10.2 hours before the alert went out and 65 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 595 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 76 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 KEAX 122213
TOREAX
KSC091-122300-
/O.NEW.KEAX.TO.W.0053.080912T2213Z-080912T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
513 PM CDT FRI SEP 12 2008

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS EXTENDED THE

* TORNADO WARNING FOR...
  NORTHWESTERN JOHNSON COUNTY IN EAST CENTRAL KANSAS

* UNTIL 600 PM CDT

* AT 507 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS 
  STORM WAS LOCATED NEAR DE SOTO...AND MOVING NORTHEAST AT 25 MPH. A
  SECOND POTENTIALLY TORNADIC STORM WAS LOCATED NEAR BALDWIN CITY...
  AND ALSO MOVING NORTHEAST AT 25 MPH. 

* THIS TORNADIC STORM WILL BE NEAR...
  DE SOTO BY 515 PM CDT.
  LAKE QUIVIRA BY 540 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
MONTICELLO...ZARAH AND HOLLIDAY.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3904 9467 3881 9505 3896 9505 3899 9497
      3898 9492 3904 9487
TIME...MOT...LOC 2212Z 228DEG 22KT 3895 9499

$$

BOOKBINDER

3 follow-up statements

000 
WWUS53 KEAX 122221
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
521 PM CDT FRI SEP 12 2008

KSC091-122300-
/O.CON.KEAX.TO.W.0053.000000T0000Z-080912T2300Z/
JOHNSON KS-
520 PM CDT FRI SEP 12 2008

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN JOHNSON
COUNTY IN EAST CENTRAL KANSAS UNTIL 600 PM CDT...

AT 515 PM CDT...JOHNSON COUNTY EMERGENCY MANAGEMENT REPORTED A 
TORNADO NEAR CLEARVIEW CITY.  THIS TORNADIC STORM WAS NOW LOCATED 
NEAR DE SOTO...MOVING NORTHEAST AT 25 MPH. THIS STORM CONTINUES TO 
SHOW VERY STRONG ROTATION ON DOPPLER RADAR...AND ADDITIONAL BRIEF 
TORNADO TOUCHDOWNS ARE LIKELY A SECOND POTENTIALLY TORNADIC STORM 
WAS LOCATED ABOUT 4 MILES NORTH OF BALDWIN CITY...AND WILL ALSO 
TRACK INTO WESTERN JOHNSON COUNTY AFTER 540 PM.

THE TORNADO WILL BE NEAR...
  LAKE QUIVIRA BY 540 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADO INCLUDE MONTICELLO...
HOLLIDAY AND ZARAH.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT OR STORM
SHELTER. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF
NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.


LAT...LON 3904 9467 3881 9505 3896 9505 3899 9497
      3898 9492 3904 9487
TIME...MOT...LOC 2220Z 234DEG 23KT 3898 9492

$$

BOOKBINDER

000 
WWUS53 KEAX 122235
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
535 PM CDT FRI SEP 12 2008

KSC091-122300-
/O.CON.KEAX.TO.W.0053.000000T0000Z-080912T2300Z/
JOHNSON KS-
534 PM CDT FRI SEP 12 2008

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN JOHNSON
COUNTY IN EAST CENTRAL KANSAS UNTIL 600 PM CDT...

AT 529 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO 2 MILES 
SOUTHWEST OF BONNER SPRINGS.  THIS TORNADIC STORM IS EXPECTED TO 
EXIT NORTHERN JOHNSON COUNTY IN THE NEXT 5 MINUTES.

ANOTHER STORM WITH STRONG ROTATION WAS LOCATED ABOUT 5 MILES SOUTH 
OF EUDORA AND WILL PASS NEAR CLEARVIEW CITY ONCE AGAIN IN THE NEXT 
10 TO 15 MINUTES. 

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT OR STORM
SHELTER. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF
NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3904 9467 3881 9505 3896 9505 3899 9497
      3898 9492 3904 9487
TIME...MOT...LOC 2234Z 234DEG 23KT 3903 9483

$$

BOOKBINDER

000 
WWUS53 KEAX 122251
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
551 PM CDT FRI SEP 12 2008

KSC091-122300-
/O.CON.KEAX.TO.W.0053.000000T0000Z-080912T2300Z/
JOHNSON KS-
550 PM CDT FRI SEP 12 2008

...A TORNADO WARNING REMAINS IN EFFECT FOR WESTERN JOHNSON COUNTY IN
EAST CENTRAL KANSAS UNTIL 600 PM CDT...

AT 549 PM CDT...DOPPLER RADAR INDICATED A STORM WITH STRONG ROTATION 
CROSSING THE DOUGLAS AND JOHNSON COUNTY LINE ABOUT 5 MILES SOUTH OF 
EUDORA. THIS STORM WAS MOVING NORTHEAST AT 25 MPH.

THIS TORNADO WILL AFFECT MAINLY RURAL AREAS OF WESTERN JOHNSON 
COUNTY SOUTH OF CLEARVIEW CITY.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT OR STORM
SHELTER. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF
NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3892 9487 3888 9494 3887 9495 3881 9505
      3891 9505 3893 9501 3897 9495
TIME...MOT...LOC 2250Z 226DEG 21KT 3887 9505

$$

BOOKBINDER

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 11, 11:55 PM CDT	Areal Flood Advisory	EAX	Doniphan	6 hr
Sep 12, 5:18 AM CDT	Areal Flood Advisory	EAX	Linn, Miami	6 hr
Sep 12, 6:51 AM CDT	Areal Flood Advisory	EAX	Johnson, Leavenworth, Wyandotte	8 hr
Sep 12, 7:26 AM CDT	Flash Flood Warning	EAX	Miami	6 hr
Sep 12, 8:42 AM CDT	River Flood Warning	EAX	Miami	4 days
Sep 12, 8:42 AM CDT	River Flood Warning	EAX	Linn	6 days
Sep 12, 11:43 AM CDT	Areal Flood Advisory	EAX	Atchison, Doniphan	8 hr
Sep 12, 1:32 PM CDT	Areal Flood Warning	EAX	Miami	8 hr
Sep 12, 4:32 PM CDT	Tornado Warning	EAX	Miami	28 min
Sep 12, 4:51 PM CDT	Tornado Warning	EAX	Johnson	24 min
Sep 12, 4:55 PM CDT	Tornado Warning	EAX	Johnson, Miami	35 min
Sep 12, 5:22 PM CDT	Areal Flood Advisory	EAX	Johnson, Leavenworth, Wyandotte	6 hr
Sep 12, 5:23 PM CDT	Tornado Warning	EAX	Leavenworth, Wyandotte	37 min
Sep 12, 5:29 PM CDT	Tornado Warning	EAX	Johnson	31 min
Sep 12, 5:59 PM CDT	Tornado Warning	EAX	Wyandotte	46 min
Sep 12, 6:01 PM CDT	Tornado Warning	EAX	Johnson	26 min
Sep 12, 6:30 PM CDT	Flash Flood Warning	EAX	Johnson, Leavenworth, Wyandotte	6 hr
Sep 12, 6:38 PM CDT	Areal Flood Advisory	EAX	Johnson, Wyandotte	6 hr

Nearby

Tornado Warnings in Kansas, 2008 Every tornado warning in 2008 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.