Alert archive / Missouri / Tornado Warnings in 2014

Tornado Warning 32, NWS Kansas City, MO

September 9, 2014Atchison County, Missouri

NWS Kansas City, MO issued this tornado warning at Sep 9, 2014, 5:29 PM CDT for Atchison County, Missouri. It was in force for 31 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: Sep 9, 2014, 5:29 PM CDT (22:29 UTC)
Expired: Sep 9, 2014, 6:00 PM CDT
In force: 31 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 2.5 in

County Atchison County, MO

The radar

The Omaha radar (KOAX), 125 km from the middle of the area, began a volume at 22:31 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 9, 5:40 PM CDT	HAIL 1	2 Ne Rockport, MO
Sep 9, 5:43 PM CDT	HAIL 1	3 Wnw Rockport, MO
Sep 9, 5:44 PM CDT	HAIL 1.75	2 W Tarkio, MO	GOLF BALL SIZE HAIL/70MPH WINDS 2MILES WEST OF TARKIO. PENNY SIZE HAIL REPORTED NOW IN TARKIO.
Sep 9, 5:50 PM CDT	HAIL 1.25	2 N Tarkio, MO
Sep 9, 5:50 PM CDT	TORNADO	N Tarkio, MO	POSSIBLE TORNADO...FLYING DEBRIS AT LEAST 70 MPH WINDS
Sep 9, 5:57 PM CDT	TSTM WND GST 70	Tarkio, MO	70 MPH WINDS SUSTAINED FOR 5 TO 7 MINUTES IN THE CITY OF TARKIO. CITY WITHOUT POWER. NICKEL SIZE HAIL UP TO GOLF BALL SIZE HAIL REPORTED AT 552PM. NICKEL SIZE HAIL FALLING NOW.

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 9, 3:34 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.5 hours before the alert went out and 125 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: 1246 J/kg
Mixed-layer CIN: -266 J/kg
Mixed-layer LCL: 1436 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 96 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.

936 
WFUS53 KEAX 092229
TOREAX
MOC005-092300-
/O.NEW.KEAX.TO.W.0032.140909T2229Z-140909T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
529 PM CDT TUE SEP 9 2014

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* TORNADO WARNING FOR...
  ATCHISON COUNTY IN NORTHWEST MISSOURI...

* UNTIL 600 PM CDT

* AT 528 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR ROCKPORT...AND MOVING EAST AT 30 MPH.

  AT 226 PM CDT...TRAINED SPOTTERS REPORTED A FUNNEL CLOUD 2 MILES   
  NORTH OF WATSON. 

  HAZARD...TORNADO AND TENNIS BALL SIZE HAIL.

  SOURCE...RADAR INDICATED ROTATION.

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
           TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
           LIKELY.

* LOCATIONS IMPACTED INCLUDE...
  TARKIO...ROCKPORT AND FAIRFAX.

THIS WILL IMPACT

 I-29 BETWEEN MILE MARKERS 104 AND 117.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4052 9529 4028 9531 4034 9563 4037 9565
      4049 9566
TIME...MOT...LOC 2229Z 272DEG 28KT 4043 9555

TORNADO...RADAR INDICATED
HAIL...2.50IN

$$

HAWBLITZEL

1 follow-up statement

086 
WWUS53 KEAX 092239
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
539 PM CDT TUE SEP 9 2014

MOC005-092300-
/O.CON.KEAX.TO.W.0032.000000T0000Z-140909T2300Z/
ATCHISON MO-
539 PM CDT TUE SEP 9 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL ATCHISON COUNTY
UNTIL 600 PM CDT...

AT 537 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED NEAR ROCKPORT...AND MOVING SOUTHEAST AT 10 MPH. TRAINED 
STORM SPOTTERS REPORTED A WALL CLOUD WITH RAPID ROTATION NEAR 
ROCKPORT.

HAZARD...TORNADO AND TENNIS BALL SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
         LIKELY.

LOCATIONS IMPACTED INCLUDE...
TARKIO...ROCKPORT AND FAIRFAX.

THIS WILL IMPACT

 I-29 BETWEEN MILE MARKERS 104 AND 116.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4049 9560 4052 9529 4028 9531 4034 9563
      4037 9565
TIME...MOT...LOC 2239Z 300DEG 10KT 4044 9552

TORNADO...RADAR INDICATED
HAIL...2.50IN

$$

HAWBLITZEL

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 9, 11:00 AM CDT	Flash Flood Watch	EAX	Adair, Andrew, Atchison, Chariton, Daviess, DeKalb and 14 more	20 hr
Sep 9, 4:39 PM CDT	Severe Thunderstorm Warning	EAX	Atchison	51 min
Sep 9, 5:24 PM CDT	Severe Thunderstorm Warning	EAX	Atchison	51 min
Sep 9, 6:00 PM CDT	Tornado Warning	EAX	Atchison	30 min
Sep 9, 6:04 PM CDT	Areal Flood Advisory	EAX	Atchison	6 hr
Sep 9, 6:12 PM CDT	Severe Thunderstorm Warning	EAX	Atchison, Holt	48 min
Sep 9, 6:27 PM CDT	Flash Flood Warning	EAX	Atchison	6 hr
Sep 9, 6:41 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, Atchison, Holt, Nodaway	49 min

Nearby

Tornado Warnings in Missouri, 2014 Every tornado warning in 2014 Tornadoes in 2014

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.