Alert archive / Kansas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 49, NWS Kansas City, MO

May 19, 2018Linn County, Kansas

NWS Kansas City, MO issued this severe thunderstorm warning at May 19, 2018, 4:54 PM CDT for Linn County, Kansas. It was in force for 51 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 19, 2018, 4:54 PM CDT (21:54 UTC)
Expired: May 19, 2018, 5:45 PM CDT
In force: 51 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Linn County, KS

The radar

The Pleasant Hill radar (KEAX), 94 km from the middle of the area, began a volume at 21:57 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 19, 4:21 PM CDT	Severe Thunderstorm Watch	SPC	3 hr

The nearest sounding before it

Topeka, KS (KFOE), launched 12:00Z, 9.9 hours before the alert went out and 116 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: 1694 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 140 m²/s²
0-3 km storm-relative helicity: 274 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

875 
WUUS53 KEAX 192154
SVREAX
KSC107-192245-
/O.NEW.KEAX.SV.W.0049.180519T2154Z-180519T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Kansas City/Pleasant Hill MO
454 PM CDT SAT MAY 19 2018

The National Weather Service in Pleasant Hill has issued a

* Severe Thunderstorm Warning for...
  Southwestern Linn County in east central Kansas...

* Until 545 PM CDT.

* At 454 PM CDT, a severe thunderstorm was located near Blue Mound,
  or 14 miles west of Mound City, moving northeast at 25 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Mound City, Parker, Blue Mound and Prescott. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3804 9508 3825 9507 3836 9496 3806 9461
      3804 9462
TIME...MOT...LOC 2154Z 235DEG 24KT 3806 9508 

HAIL...1.25IN
WIND...60MPH
 
$$

Grana

1 follow-up statement

684 
WWUS53 KEAX 192239
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
539 PM CDT SAT MAY 19 2018

KSC107-192249-
/O.EXP.KEAX.SV.W.0049.000000T0000Z-180519T2245Z/
Linn KS-
539 PM CDT SAT MAY 19 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN LINN COUNTY WILL
EXPIRE AT 545 PM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
east central Kansas...and west central Missouri.

LAT...LON 3804 9508 3825 9507 3836 9496 3806 9461
      3804 9462
TIME...MOT...LOC 2239Z 235DEG 24KT 3822 9480 

$$

Grana

The office that day

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

Issued	Product	Office	Counties	Lasted
May 19, 5:50 PM CDT	Special Weather Statement	EAX	Johnson	40 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2018 Every severe thunderstorm warning 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.