Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 16, NWS Kansas City, MO

May 27, 2021Clay County, Ray County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at May 27, 2021, 5:05 PM CDT for Clay County, Ray County, Missouri. It was in force for 25 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 27, 2021, 5:05 PM CDT (22:05 UTC)
Expired: May 27, 2021, 5:30 PM CDT
In force: 25 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Clay County, MO, Ray County, MO

The radar

The Pleasant Hill radar (KEAX), 51 km from the middle of the area, began a volume at 22:07 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 nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 10.1 hours before the alert went out and 115 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: 3 J/kg
Mixed-layer CIN: -459 J/kg
Mixed-layer LCL: 1511 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 343 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

443 
WUUS53 KEAX 272205
SVREAX
MOC047-177-272230-
/O.NEW.KEAX.SV.W.0016.210527T2205Z-210527T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Kansas City/Pleasant Hill MO
505 PM CDT Thu May 27 2021

The National Weather Service in Pleasant Hill has issued a

* Severe Thunderstorm Warning for...
  Central Clay County in west central Missouri...
  West central Ray County in west central Missouri...

* Until 530 PM CDT.

* At 505 PM CDT, a severe thunderstorm was located near Missouri
  City, or near Excelsior Springs, moving east at 20 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Excelsior Springs around 520 PM CDT.
  Crystal Lakes and Excelsior Estates around 525 PM CDT.

Other locations in the path of this severe thunderstorm include Woods
Heights.

This includes the following highways...
 Interstate 35 in Missouri between mile markers 11 and 25.
 Interstate 435 between mile markers 41 and 52.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3932 9459 3941 9413 3924 9413 3923 9424
      3924 9425 3924 9429 3922 9432 3918 9459
TIME...MOT...LOC 2205Z 262DEG 19KT 3929 9431 

HAIL...1.50IN
WIND...60MPH
 
$$

Blair

1 follow-up statement

200 
WWUS53 KEAX 272226
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
526 PM CDT Thu May 27 2021

MOC047-177-272236-
/O.EXP.KEAX.SV.W.0016.000000T0000Z-210527T2230Z/
Clay MO-Ray MO-
526 PM CDT Thu May 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CLAY AND WEST CENTRAL
RAY COUNTIES WILL EXPIRE AT 530 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However heavy rain
is still possible with this thunderstorm.

LAT...LON 3932 9459 3941 9413 3924 9413 3923 9424
      3924 9425 3924 9429 3922 9432 3918 9459
TIME...MOT...LOC 2226Z 262DEG 19KT 3930 9420 

$$

Blair

The office that day

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

Issued	Product	Office	Counties	Lasted
May 27, 1:20 AM CDT	River Flood Warning	EAX	Carroll	32 hr
May 27, 1:20 AM CDT	River Flood Warning	EAX	Cooper, Saline	55 hr
May 27, 1:20 AM CDT	River Flood Warning	EAX	Cass, Henry, Johnson	4 days
May 27, 1:20 AM CDT	River Flood Warning	EAX	Johnson, Pettis	39 hr
May 27, 3:15 AM CDT	Special Weather Statement	EAX	Andrew	45 min
May 27, 3:51 AM CDT	Special Weather Statement	EAX	Clay, Clinton	39 min
May 27, 4:05 AM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Clinton, Daviess, DeKalb	40 min
May 27, 4:26 AM CDT	Special Weather Statement	EAX	Caldwell, Carroll	49 min
May 27, 4:50 AM CDT	Special Weather Statement	EAX	Henry	40 min
May 27, 5:27 AM CDT	Special Weather Statement	EAX	Chariton, Linn, Macon, Sullivan	48 min
May 27, 5:37 AM CDT	Special Weather Statement	EAX	Pettis	38 min
May 27, 6:22 AM CDT	River Flood Warning	EAX	Clay, Ray	27 hr
May 27, 6:28 AM CDT	Special Weather Statement	EAX	Platte	32 min
May 27, 6:51 AM CDT	Special Weather Statement	EAX	Jackson	39 min
May 27, 7:51 AM CDT	Areal Flood Advisory	EAX	Bates, Cass	71 min
May 27, 8:31 AM CDT	Areal Flood Advisory	EAX	Henry, Johnson, Pettis	31 min
May 27, 9:02 AM CDT	Flash Flood Warning	EAX	Bates, Cass	3 hr
May 27, 9:02 AM CDT	Flash Flood Warning	EAX	Henry, Johnson, Pettis	3 hr
May 27, 9:35 AM CDT	River Flood Warning	EAX	Bates, Cass, Henry	56 hr
May 27, 10:50 AM CDT	Flash Flood Watch	EAX	Bates, Cass, Henry, Johnson, Pettis	8 hr
May 27, 11:23 AM CDT	River Flood Warning	EAX	Bates	4 days
May 27, 11:46 AM CDT	Areal Flood Warning	EAX	Henry, Johnson, Pettis	9 hr
May 27, 11:46 AM CDT	Areal Flood Warning	EAX	Bates, Cass	9 hr
May 27, 12:25 PM CDT	River Flood Warning	EAX	Howard	8 hr
May 27, 12:25 PM CDT	River Flood Warning	EAX	Cooper	19 hr
May 27, 4:50 PM CDT	Special Weather Statement	EAX	Clay	40 min
May 27, 4:51 PM CDT	Areal Flood Advisory	EAX	Clay, Jackson, Platte	3 hr
May 27, 5:40 PM CDT	Severe Thunderstorm Warning	EAX	Platte	35 min
May 27, 5:55 PM CDT	Flash Flood Warning	EAX	Clay, Jackson, Platte	3 hr
May 27, 5:58 PM CDT	Flash Flood Warning	EAX	Clay, Ray	3 hr
May 27, 6:11 PM CDT	Special Weather Statement	EAX	Clay	34 min

Nearby

Severe Thunderstorm Warnings in Missouri, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.