Alert archive / Missouri / Tornado Warnings in 2004

Tornado Warning 56, NWS Kansas City, MO

June 12, 2004Atchison County, Missouri

NWS Kansas City, MO issued this tornado warning at Jun 12, 2004, 5:34 PM CDT for Atchison County, Missouri. It was in force for 56 min. 6 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: Jun 12, 2004, 5:34 PM CDT (22:34 UTC)
Expired: Jun 12, 2004, 6:30 PM CDT
In force: 56 min
Issued by: NWS Kansas City, MO
Area: Counties, with a storm outline in the text

County Atchison County, MO

The radar

The Omaha radar (KOAX), 119 km from the middle of the area, began a volume at 22:35 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
Jun 12, 5:46 PM CDT	TSTM WND GST 80	3 E Rockport, MO	AT INTERSECTION OF 136 AND J HWY.
Jun 12, 5:46 PM CDT	TSTM WND GST 80	3 E Rockport, MO	AT INTERSECTION OF 136 AND J HWY.
Jun 12, 5:46 PM CDT	HAIL 1	3 E Rockport, MO
Jun 12, 5:46 PM CDT	HAIL 1	3 E Rockport, MO
Jun 12, 6:10 PM CDT	HAIL 0.5	Westboro, MO
Jun 12, 6:10 PM CDT	HAIL 0.5	Westboro, MO

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
Jun 12, 11:45 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.6 hours before the alert went out and 119 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: 232 J/kg
Mixed-layer CIN: -305 J/kg
Mixed-layer LCL: 2084 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 18 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

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

158 
WFUS53 KEAX 122234
TOREAX
MOC005-122330-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
532 PM CDT SAT JUN 12 2004

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* TORNADO WARNING FOR...
  ATCHISON COUNTY IN NORTHWEST MISSOURI
  THIS INCLUDES THE CITY OF ROCKPORT

* UNTIL 630 PM CDT

* AT 527 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS 
  STORM WAS LOCATED NEAR ROCKPORT...AND MOVING NORTHEAST AT 15 MPH.
  LARGE HAIL TO THE SIZE OF GOLFBALLS IS ALSO POSSIBLE WITH THIS     
  STORM. 

* THIS TORNADIC STORM WILL BE NEAR...
   TARKIO BY 605 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.

LAT...LON 4043 9570 4032 9560 4049 9518 4067 9540

$$

STOFLET

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 11:29 PM CDT	Severe Thunderstorm Warning	EAX	Clinton, DeKalb	46 min
Jun 12, 2:47 AM CDT	Flash Flood Warning	EAX	Clay, Platte	6 hr
Jun 12, 6:12 PM CDT	Tornado Warning	EAX	Nodaway	93 min
Jun 12, 6:52 PM CDT	Tornado Warning	EAX	Andrew, Holt, Nodaway	38 min

Nearby

Tornado Warnings in Missouri, 2004 Every tornado warning in 2004 Tornadoes in 2004

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.