Alert archive / Missouri / Tornado Warnings in 2017

Tornado Warning 24, NWS Kansas City, MO

April 15, 2017Atchison County, Nodaway County, Missouri

NWS Kansas City, MO issued this tornado warning at Apr 15, 2017, 7:59 PM CDT for Atchison County, Nodaway County, Missouri. 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 15, 2017, 7:59 PM CDT (00:59 UTC)
Expired: Apr 15, 2017, 8:15 PM CDT
In force: 16 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Tornado: Observed
Hail: 0.0 in

Counties Atchison County, MO, Nodaway County, MO

The radar

The Omaha radar (KOAX), 137 km from the middle of the area, began a volume at 01:01 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 15, 5:05 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 1.0 hours before the alert went out and 138 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: 1034 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 1322 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

As transmitted.

150 
WFUS53 KEAX 160059
TOREAX
MOC005-147-160115-
/O.NEW.KEAX.TO.W.0024.170416T0059Z-170416T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Kansas City/Pleasant Hill MO
759 PM CDT SAT APR 15 2017

The National Weather Service in Pleasant Hill has issued a

* Tornado Warning for...
  Northeastern Atchison County in northwestern Missouri...
  Northwestern Nodaway County in northwestern Missouri...

* Until 815 PM CDT

* At 759 PM CDT, a confirmed tornado was located near Blanchard, or
  10 miles northeast of Tarkio, moving east at 25 mph.

  HAZARD...Damaging tornado. 

  SOURCE...Weather spotters confirmed tornado. 

  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...
  Burlington Junction, Clearmont, Elmo, Braddyville and Blanchard. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Pleasant Hill.

&&

LAT...LON 4058 9499 4057 9498 4043 9502 4049 9532
      4058 9531
TIME...MOT...LOC 0059Z 274DEG 21KT 4054 9522 

TORNADO...OBSERVED
HAIL...0.00IN

$$

LG

1 follow-up statement

685 
WWUS53 KEAX 160113
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
813 PM CDT SAT APR 15 2017

MOC005-147-160123-
/O.EXP.KEAX.TO.W.0024.000000T0000Z-170416T0115Z/
Atchison MO-Nodaway MO-
813 PM CDT SAT APR 15 2017

...THE TORNADO WARNING FOR NORTHEASTERN ATCHISON AND NORTHWESTERN
NODAWAY COUNTIES WILL EXPIRE AT 815 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with this thunderstorm.

A severe thunderstorm watch remains in effect until 1100 PM CDT for
northwestern Missouri.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Pleasant Hill.

LAT...LON 4058 9499 4057 9498 4043 9502 4049 9532
      4058 9531
TIME...MOT...LOC 0113Z 274DEG 21KT 4053 9512 

$$

LG

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 7:14 PM CDT	Tornado Warning	EAX	Atchison	16 min
Apr 15, 7:30 PM CDT	Tornado Warning Tornado observed	EAX	Atchison, Nodaway	30 min
Apr 15, 8:28 PM CDT	Special Weather Statement	EAX	Nodaway	32 min
Apr 15, 8:37 PM CDT	Severe Thunderstorm Warning	EAX	Nodaway, Worth	23 min
Apr 15, 9:33 PM CDT	Special Weather Statement	EAX	Holt	27 min
Apr 16, 1:00 AM CDT	Special Weather Statement	EAX	Cass	45 min

Nearby

Tornado Warnings in Missouri, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.