Alert archive / Missouri / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 140, NWS Kansas City, MO

June 28, 20174 counties in Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Jun 28, 2017, 6:12 PM CDT for 4 counties in Missouri. It was in force for 48 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 28, 2017, 6:12 PM CDT (23:12 UTC)
Expired: Jun 28, 2017, 7:00 PM CDT
In force: 48 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Gentry County, MO, Harrison County, MO, Nodaway County, MO, Worth County, MO

The radar

The Des Moines radar (KDMX), 156 km from the middle of the area, began a volume at 23:16 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 28, 6:32 PM CDT	TSTM WND DMG	3 Ene Worth, MO	POWER POLES SNAPPED. POSSIBLE TORNADO.
Jun 28, 6:35 PM CDT	HAIL 1	3 Nw Worth, MO	ALSO 40-50 MPH WIND.
Jun 28, 6:45 PM CDT	TSTM WND DMG	3 N Albany, MO	HEAVY DAMAGE TO OUTBUILDINGS.
Jun 28, 6:45 PM CDT	HAIL 1.75	2 Nnw Denver, MO
Jun 28, 6:52 PM CDT	FUNNEL CLOUD	3 S Denver, MO	FUNNEL CLOUD NORTH OF DARLINGTON AND HWY 136 WAS SPOTTED LOWERING AND THEN RISING BACK UP.
Jun 28, 6:55 PM CDT	TORNADO	2 N Cainsville, MO	NUMEROUS TREES UPROOTED AND POWER POLES SNAPPED, SOME BLOCKING ROADS. BARN DESTROYED.

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

The nearest sounding before it

Topeka, KS (KFOE), launched 12:00Z, 11.2 hours before the alert went out and 198 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: 492 J/kg
Mixed-layer CIN: -235 J/kg
Mixed-layer LCL: 1188 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 214 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

314 
WUUS53 KEAX 282312
SVREAX
MOC075-081-147-227-290000-
/O.NEW.KEAX.SV.W.0140.170628T2312Z-170629T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Kansas City/Pleasant Hill MO
612 PM CDT WED JUN 28 2017

The National Weather Service in Pleasant Hill has issued a

* Severe Thunderstorm Warning for...
  Worth County in northwestern Missouri...
  Northern Gentry County in northwestern Missouri...
  Harrison County in north central Missouri...
  Northeastern Nodaway County in northwestern Missouri...

* Until 700 PM CDT

* At 611 PM CDT, severe thunderstorms were located along a line
  extending from 7 miles west of Lamoni to near Grant City to near
  Ravenwood, moving east at 40 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Bethany, Grant City, Ridgeway, Ravenwood, Eagleville, New Hampton,
  Cainsville, Irena, Sheridan, Blythedale, Parnell, Mount Moriah,
  Gentry, Worth, Allendale, Denver, Athelstan, Hatfield and
  Martinsville.

This includes Interstate 35 in Missouri between mile markers 90 and
114.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A tornado watch remains in effect until 1000 PM CDT for north central
and northwestern Missouri.

LAT...LON 4019 9376 4031 9473 4057 9478 4058 9377
TIME...MOT...LOC 2311Z 280DEG 34KT 4061 9407 4043 9433 4036 9460 

HAIL...1.00IN
WIND...60MPH
 
$$

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, 5:49 PM CDT	Tornado Warning	EAX	Nodaway, Worth	26 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

Severe Thunderstorm Warnings in Missouri, 2017 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.