Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 2, NWS Kansas City, MO

March 15, 2021Johnson County, Miami County, Kansas

NWS Kansas City, MO issued this severe thunderstorm warning at Mar 15, 2021, 3:46 PM CDT for Johnson County, Miami County, Kansas. It was in force for 29 min. 2 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: Mar 15, 2021, 3:46 PM CDT (20:46 UTC)
Expired: Mar 15, 2021, 4:15 PM CDT
In force: 29 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Johnson County, KS, Miami County, KS

What was reported inside it

Time	Report	Where	Remark
Mar 15, 4:04 PM CDT	HAIL 1	Spring Hill, KS
Mar 15, 4:21 PM CDT	HAIL 1	3 Ne Spring Hill, KS	REPORT FROM MPING: QUARTER (1.00 IN.).

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 8.8 hours before the alert went out and 77 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: 685 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 126 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

547 
WUUS53 KEAX 152046
SVREAX
KSC091-121-152115-
/O.NEW.KEAX.SV.W.0002.210315T2046Z-210315T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Kansas City/Pleasant Hill MO
346 PM CDT Mon Mar 15 2021

The National Weather Service in Pleasant Hill has issued a

* Severe Thunderstorm Warning for...
  North central Miami County in east central Kansas...
  Southeastern Johnson County in east central Kansas...

* Until 415 PM CDT.

* At 346 PM CDT, a severe thunderstorm was located near Spring Hill,
  moving northeast at 15 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...
  Overland Park, Olathe, Leawood, Gardner, Spring Hill, Hillsdale,
  Stanley and Clare.

This includes Interstate 35 in Kansas between mile markers 208 and
219.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3866 9482 3867 9496 3892 9487 3891 9469
      3886 9464
TIME...MOT...LOC 2046Z 208DEG 13KT 3871 9489 

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
Mar 15, 3:55 PM CDT	Tornado Warning	EAX	Johnson, Miami	35 min
Mar 15, 4:22 PM CDT	Severe Thunderstorm Warning	EAX	Miami	38 min
Mar 15, 4:26 PM CDT	Tornado Warning	EAX	Johnson	34 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2021 Every severe thunderstorm warning in 2021

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.