Alert archive / Missouri / Tornado Warnings in 2018

Tornado Warning 3, NWS Kansas City, MO

May 2, 2018Atchison County, Nodaway County, Missouri

NWS Kansas City, MO issued this tornado warning at May 2, 2018, 7:30 PM CDT for Atchison County, Nodaway County, Missouri. It was in force for 15 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: May 2, 2018, 7:30 PM CDT (00:30 UTC)
Expired: May 2, 2018, 7:45 PM CDT
In force: 15 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Atchison County, MO, Nodaway County, MO

The radar

The Omaha radar (KOAX), 141 km from the middle of the area, began a volume at 00:35 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.

The watch it was issued in

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

Issued	Product	Office	Lasted
May 2, 5:27 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 0.5 hours before the alert went out and 142 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: 711 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 188 m²/s²
0-3 km storm-relative helicity: 260 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

As transmitted.

572 
WFUS53 KEAX 030030
TOREAX
MOC005-147-030045-
/O.NEW.KEAX.TO.W.0003.180503T0030Z-180503T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Kansas City/Pleasant Hill MO
730 PM CDT WED MAY 2 2018

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 745 PM CDT.
    
* At 730 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles east of Tarkio, moving northeast at 50 mph.

  HAZARD...Tornado.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4057 9481 4035 9525 4040 9535 4058 9522
TIME...MOT...LOC 0030Z 225DEG 43KT 4041 9523 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

CDB

1 follow-up statement

920 
WWUS53 KEAX 030043
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
743 PM CDT WED MAY 2 2018

MOC005-147-030053-
/O.EXP.KEAX.TO.W.0003.000000T0000Z-180503T0045Z/
Atchison MO-Nodaway MO-
743 PM CDT WED MAY 2 2018

...THE TORNADO WARNING FOR NORTHEASTERN ATCHISON AND NORTHWESTERN
NODAWAY COUNTIES WILL EXPIRE AT 745 PM CDT...
    
The tornado threat has diminished and the Tornado Warning has been 
cancelled. However, damaging winds remain likely and a Severe 
Thunderstorm Warning remains in effect for the area.  However gusty 
winds are still possible with this thunderstorm.

A Tornado Watch remains in effect until 100 AM CDT for northwestern
Missouri.

Remember, a Severe Thunderstorm Warning remains in effect for this 
area.

LAT...LON 4057 9481 4035 9525 4040 9535 4058 9522
TIME...MOT...LOC 0043Z 225DEG 44KT 4047 9517 

$$

CDB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 2, 7:03 PM CDT	Tornado Warning	EAX	Atchison, Holt	16 min
May 2, 7:27 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, Atchison, Buchanan, Holt, Nodaway, Platte	48 min
May 2, 8:04 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan, Clinton, DeKalb, Gentry, Nodaway and 2 more	41 min
May 2, 9:06 PM CDT	Tornado Warning	EAX	Bates, Cass	24 min
May 2, 9:09 PM CDT	Tornado Warning	EAX	Cass, Jackson	36 min
May 2, 9:22 PM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass, Henry, Jackson, Johnson, Lafayette	38 min
May 2, 9:28 PM CDT	Tornado Warning	EAX	Jackson, Lafayette	32 min
May 2, 9:44 PM CDT	Tornado Warning	EAX	Carroll, Cass, Jackson, Johnson, Lafayette, Ray	46 min
May 2, 9:49 PM CDT	Tornado Warning	EAX	Bates, Cass, Henry, Johnson	41 min
May 2, 9:57 PM CDT	Severe Thunderstorm Warning	EAX	Bates, Carroll, Cass, Henry, Johnson, Lafayette and 1 more	63 min
May 2, 10:22 PM CDT	Tornado Warning	EAX	Johnson, Lafayette, Pettis, Saline	23 min
May 2, 10:39 PM CDT	Severe Thunderstorm Warning	EAX	Carroll, Chariton, Henry, Johnson, Pettis, Saline	66 min
May 2, 10:47 PM CDT	Severe Thunderstorm Warning	EAX	Macon, Randolph	28 min
May 2, 11:07 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Putnam, Schuyler, Sullivan	28 min
May 3, 4:09 PM CDT	Special Weather Statement	EAX	Atchison	21 min

Nearby

Tornado Warnings in Missouri, 2018 Every tornado warning in 2018 Tornadoes in 2018

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.