Alert archive / Missouri / Tornado Warnings in 2017

Tornado Warning 31, NWS Kansas City, MO

June 28, 2017Nodaway County, Worth County, Missouri

NWS Kansas City, MO issued this tornado warning at Jun 28, 2017, 5:49 PM CDT for Nodaway County, Worth County, Missouri. It was in force for 26 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: Jun 28, 2017, 5:49 PM CDT (22:49 UTC)
Expired: Jun 28, 2017, 6:15 PM CDT
In force: 26 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

Counties Nodaway County, MO, Worth County, MO

The radar

The Des Moines radar (KDMX), 164 km from the middle of the area, began a volume at 22:49 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.

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 28, 2:53 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.8 hours before the alert went out and 175 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: 742 J/kg
Mixed-layer CIN: -297 J/kg
Mixed-layer LCL: 831 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 721 m²/s²
0-3 km storm-relative helicity: 852 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

As transmitted.

081 
WFUS53 KEAX 282249
TOREAX
MOC147-227-282315-
/O.NEW.KEAX.TO.W.0031.170628T2249Z-170628T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Kansas City/Pleasant Hill MO
549 PM CDT WED JUN 28 2017

The National Weather Service in Pleasant Hill has issued a

* Tornado Warning for...
  Western Worth County in northwestern Missouri...
  Northeastern Nodaway County in northwestern Missouri...

* Until 615 PM CDT
    
* At 548 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Ravenwood, or 10 miles northeast of Maryville,
  moving east at 40 mph.

  HAZARD...Tornado and golf 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...
  Sheridan, Parnell and Pickering. 

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 4039 9447 4037 9489 4046 9489 4056 9450
TIME...MOT...LOC 2248Z 252DEG 35KT 4044 9471 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

Blair

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 4:11 AM CDT	Special Weather Statement	EAX	Atchison	34 min
Jun 28, 6:03 AM CDT	Special Weather Statement	EAX	Andrew	42 min
Jun 28, 4:18 PM CDT	Special Weather Statement	EAX	Nodaway	27 min
Jun 28, 4:38 PM CDT	Severe Thunderstorm Warning	EAX	Atchison	52 min
Jun 28, 5:00 PM CDT	Tornado Warning	EAX	Nodaway, Worth	30 min
Jun 28, 5:25 PM CDT	Severe Thunderstorm Warning	EAX	Nodaway	35 min
Jun 28, 6:12 PM CDT	Severe Thunderstorm Warning	EAX	Gentry, Harrison, Nodaway, Worth	48 min
Jun 28, 6:17 PM CDT	Areal Flood Advisory	EAX	Nodaway, Worth	3 hr
Jun 28, 6:21 PM CDT	Tornado Warning	EAX	Gentry, Harrison, Worth	24 min
Jun 28, 6:36 PM CDT	Flash Flood Warning	EAX	Harrison, Nodaway, Worth	9 hr
Jun 28, 6:44 PM CDT	Tornado Warning	EAX	Gentry, Harrison, Worth	46 min
Jun 28, 6:51 PM CDT	Tornado Warning	EAX	Harrison, Mercer	39 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.