Alert archive / Kansas / Tornado Warnings in 2008

Tornado Warning 13, NWS Kansas City, MO

May 1, 2008Linn County, Kansas

NWS Kansas City, MO issued this tornado warning at May 1, 2008, 10:45 PM CDT for Linn County, Kansas. It was in force for 22 min. 1 report 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: May 1, 2008, 10:45 PM CDT (03:45 UTC)
Expired: May 1, 2008, 11:07 PM CDT
In force: 22 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon

County Linn County, KS

The radar

The Pleasant Hill radar (KEAX), 103 km from the middle of the area, began a volume at 03:49 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
May 1, 10:55 PM CDT	HAIL 1	Blue Mound, KS

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
Jan 7, 1:52 PM CST	Tornado Watch	SPC	146 days
May 1, 5:36 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 3.8 hours before the alert went out and 117 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: 3122 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 168 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 020345
TOREAX
KSC107-020415-
/O.NEW.KEAX.TO.W.0013.080502T0345Z-080502T0415Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1045 PM CDT THU MAY 1 2008

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN LINN COUNTY IN EAST CENTRAL KANSAS

* UNTIL 1115 PM CDT

* AT 1044 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 8 MILES SOUTHWEST OF BLUE MOUND...OR 18 MILES
  SOUTHWEST OF MOUND CITY...AND MOVING NORTHEAST AT 30 MPH.

* THIS TORNADIC STORM WILL BE NEAR...
  BLUE MOUND BY 1100 PM CDT.
  MOUND CITY BY 1115 PM CDT.

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.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN PLEASANT HILL.

LAT...LON 3803 9501 3802 9507 3804 9509 3817 9509
      3826 9499 3813 9477 3801 9494 3802 9500
TIME...MOT...LOC 0345Z 219DEG 28KT 3800 9509

$$

DEROCHE

2 follow-up statements

000 
WWUS53 KEAX 020355
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1055 PM CDT THU MAY 1 2008

KSC107-020415-
/O.CON.KEAX.TO.W.0013.000000T0000Z-080502T0415Z/
LINN KS-
1055 PM CDT THU MAY 1 2008

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN LINN COUNTY
IN EAST CENTRAL KANSAS UNTIL 1115 PM CDT...

AT 1053 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR BLUE MOUND...OR 14 MILES SOUTHWEST OF MOUND
CITY...MOVING NORTHEAST AT 30 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  BLUE MOUND BY 1100 PM CDT.
  MOUND CITY BY 1115 PM CDT.

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.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN PLEASANT HILL.

LAT...LON 3803 9501 3802 9507 3804 9509 3817 9509
      3826 9499 3813 9477 3801 9494 3802 9500
TIME...MOT...LOC 0355Z 219DEG 28KT 3806 9503

$$

DEROCHE

000 
WWUS53 KEAX 020407
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1106 PM CDT THU MAY 1 2008

KSC107-020416-
/O.CAN.KEAX.TO.W.0013.000000T0000Z-080502T0415Z/
LINN KS-
1106 PM CDT THU MAY 1 2008

...THE TORNADO WARNING FOR SOUTHWESTERN LINN COUNTY IN EAST CENTRAL
KANSAS IS CANCELLED...

AT 1103 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE 
THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED...AND NO LONGER 
POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. THEREFORE...THE 
TORNADO WARNING IS CANCELLED.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN PLEASANT HILL.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT FRIDAY MORNING FOR
NORTHEASTERN KANSAS AND NORTHWESTERN MISSOURI.

LAT...LON 3803 9501 3802 9507 3804 9509 3817 9509
      3826 9499 3813 9477 3801 9494 3802 9500
TIME...MOT...LOC 0406Z 219DEG 28KT 3813 9496

$$

DEROCHE

The office that day

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

Issued	Product	Office	Counties	Lasted
May 1, 7:12 PM CDT	Tornado Warning	EAX	Johnson, Wyandotte	33 min
May 1, 7:18 PM CDT	Severe Thunderstorm Warning	EAX	Johnson, Miami	42 min
May 1, 7:36 PM CDT	Tornado Warning	EAX	Wyandotte	39 min
May 1, 7:37 PM CDT	Tornado Warning	EAX	Johnson	38 min
May 1, 8:11 PM CDT	Severe Thunderstorm Warning	EAX	Johnson	34 min
May 1, 8:21 PM CDT	Severe Thunderstorm Warning	EAX	Miami	39 min
May 1, 8:49 PM CDT	Tornado Warning	EAX	Johnson, Miami	26 min
May 2, 1:13 AM CDT	Severe Thunderstorm Warning	EAX	Johnson, Leavenworth, Miami, Wyandotte	47 min

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.