A surface low over southeastern Colorado with boundaries extending south and northeast across northwestern counties of the CWA helped initiate severe thunderstorms and eventually heavy rainfall. Boundary layer moisture was rather high across the area. Strong shear and good instability was mainly west of the Hwy 83 corridor with the bulk of reports in this area.   Later in the evening the main threat was heavy rainfall with 2-4 inches reported.  There were several reports of tornadoes but a thorough investigation, including reviewing video, confirmed numerous gustnadoes and an extensive amount of outflow scud clouds.

Hail in HAMILTON, KANSAS
From 24-MAY-21 14:18:00 to 24-MAY-21 14:18:00 (MST-7)
Location: MAYLINE
Magnitude: 0.88 
Reported by: Trained Spotter

Hail in KEARNY, KANSAS
From 24-MAY-21 15:59:00 to 24-MAY-21 15:59:00 (CST-6)
Location: LAKIN WHITE ARPT
Magnitude: 1.50 
Reported by: Public

Hail in KEARNY, KANSAS
From 24-MAY-21 16:24:00 to 24-MAY-21 16:24:00 (CST-6)
Location: LAKIN WHITE ARPT
Magnitude: 1.75 
Reported by: Storm Chaser

Flash Flood in KEARNY, KANSAS
From 24-MAY-21 18:10:00 to 24-MAY-21 21:10:00 (CST-6)
Location: LAKIN WHITE ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Over 5 inches of rainfall was observed.

Hail in HAMILTON, KANSAS
From 24-MAY-21 18:20:00 to 24-MAY-21 18:20:00 (MST-7)
Location: SYRACUSE
Magnitude: 1.25 
Reported by: Social Media

Hail in KEARNY, KANSAS
From 24-MAY-21 18:29:00 to 24-MAY-21 18:29:00 (CST-6)
Location: LAKE MC KINNEY
Magnitude: 1.75 
Reported by: Public

Hail in KEARNY, KANSAS
From 24-MAY-21 18:31:00 to 24-MAY-21 18:31:00 (CST-6)
Location: DEERFIELD
Magnitude: 1.00 
Reported by: Emergency Manager

Hail in KEARNY, KANSAS
From 24-MAY-21 18:32:00 to 24-MAY-21 18:32:00 (CST-6)
Location: DEERFIELD
Magnitude: 1.25 
Reported by: Social Media

Hail in TREGO, KANSAS
From 24-MAY-21 18:42:00 to 24-MAY-21 18:42:00 (CST-6)
Location: TREGO CENTER
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in KEARNY, KANSAS
From 24-MAY-21 19:01:00 to 24-MAY-21 19:01:00 (CST-6)
Location: DEERFIELD
Magnitude: 1.00 
Reported by: Public

Hail in HAMILTON, KANSAS
From 24-MAY-21 19:14:00 to 24-MAY-21 19:14:00 (MST-7)
Location: KENDALL
Magnitude: 1.75 
Reported by: Public

Hail in HAMILTON, KANSAS
From 24-MAY-21 19:31:00 to 24-MAY-21 19:31:00 (MST-7)
Location: KENDALL
Magnitude: 1.25 
Reported by: Public

Hail in FINNEY, KANSAS
From 24-MAY-21 19:35:00 to 24-MAY-21 19:35:00 (CST-6)
Location: GARDEN CITY
Magnitude: 1.00 
Reported by: Public

Hail in FINNEY, KANSAS
From 24-MAY-21 20:05:00 to 24-MAY-21 20:05:00 (CST-6)
Location: PLYMELL
Magnitude: 1.75 
Reported by: Public

There were numerous hail stones the size of golf balls.

Hail in FINNEY, KANSAS
From 24-MAY-21 20:16:00 to 24-MAY-21 20:16:00 (CST-6)
Location: PLYMELL
Magnitude: 1.50 
Reported by: Social Media

Hail in FINNEY, KANSAS
From 24-MAY-21 20:32:00 to 24-MAY-21 20:32:00 (CST-6)
Location: PLYMELL
Magnitude: 2.00 
Reported by: Storm Chaser

Hail in GRANT, KANSAS
From 24-MAY-21 20:57:00 to 24-MAY-21 20:57:00 (CST-6)
Location: ULYSSES ARPT
Magnitude: 1.00 
Reported by: Emergency Manager

Heavy Rain in HAMILTON, KANSAS
From 24-MAY-21 22:02:00 to 25-MAY-21 05:02:00 (MST-7)
Location: COOLIDGE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Rainfall of 3.60 was reported.

Heavy Rain in KEARNY, KANSAS
From 24-MAY-21 22:03:00 to 25-MAY-21 06:03:00 (CST-6)
Location: LAKIN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Rainfall of 2.64 was observed.

Heavy Rain in KEARNY, KANSAS
From 24-MAY-21 22:05:00 to 25-MAY-21 06:05:00 (CST-6)
Location: DEERFIELD
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Rainfall of 2.00 inches was observed.