Scattered strong to severe thunderstorms developed over part of Northwest Kansas during the afternoon, lasting into early evening.  The largest hail produced by these storms was tennis ball size near Oakley.  Rainfall rates were so high with one storm near Grainfield that vehicles were hydroplaning on I-70, and one semi with trailer rolled over.

Hail in SHERIDAN, KANSAS
From 20-JUN-17 14:50:00 to 20-JUN-17 15:05:00 (CST-6)
Location: TASCO
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Flood in GOVE, KANSAS
From 20-JUN-17 16:29:00 to 20-JUN-17 16:40:00 (CST-6)
Location: GRAINFIELD
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Intense, heavy rainfall caused many drivers to hydroplane and a semi with trailer to rollover at mile marker 91 on I-70, two miles west of Grainfield.

Hail in GOVE, KANSAS
From 20-JUN-17 14:50:00 to 20-JUN-17 14:50:00 (CST-6)
Location: PARK
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Hail in GOVE, KANSAS
From 20-JUN-17 14:45:00 to 20-JUN-17 14:45:00 (CST-6)
Location: PARK
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHERIDAN, KANSAS
From 20-JUN-17 14:54:00 to 20-JUN-17 14:54:00 (CST-6)
Location: TASCO
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in GRAHAM, KANSAS
From 20-JUN-17 15:00:00 to 20-JUN-17 15:00:00 (CST-6)
Location: ST PETER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHERIDAN, KANSAS
From 20-JUN-17 15:00:00 to 20-JUN-17 15:00:00 (CST-6)
Location: TASCO
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The time of the report was estimated by radar.  Difficult to be sure of time due to many storms around location of report.

Hail in SHERIDAN, KANSAS
From 20-JUN-17 15:00:00 to 20-JUN-17 15:00:00 (CST-6)
Location: TASCO
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in WICHITA, KANSAS
From 20-JUN-17 15:10:00 to 20-JUN-17 15:25:00 (CST-6)
Location: MARIENTHAL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The hail sizes ranged from nickel to quarter in size.  Estimated time of report from radar.

Hail in GOVE, KANSAS
From 20-JUN-17 15:16:00 to 20-JUN-17 15:16:00 (CST-6)
Location: QUINTER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Nickel to quarter size hail fell at mile marker 106 on I-70.

Hail in LOGAN, KANSAS
From 20-JUN-17 15:23:00 to 20-JUN-17 15:38:00 (CST-6)
Location: MONUMENT
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quite a bit of the hail was quarter to ping-pong size.  The hail has been falling for 15 minutes so far, with the hail beginning to get smaller.

Hail in LOGAN, KANSAS
From 20-JUN-17 15:40:00 to 20-JUN-17 15:40:00 (CST-6)
Location: OAKLEY MUNI ARPT
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A few larger hailstones also fell, but no measurement on those.

Hail in SHERIDAN, KANSAS
From 20-JUN-17 15:48:00 to 20-JUN-17 15:48:00 (CST-6)
Location: TASCO
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The report was second hand information.

Hail in SHERIDAN, KANSAS
From 20-JUN-17 16:05:00 to 20-JUN-17 16:05:00 (CST-6)
Location: ANGELUS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHERIDAN, KANSAS
From 20-JUN-17 16:07:00 to 20-JUN-17 16:07:00 (CST-6)
Location: ANGELUS
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Hail in GOVE, KANSAS
From 20-JUN-17 16:22:00 to 20-JUN-17 16:22:00 (CST-6)
Location: GRAINFIELD
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The hail is falling along I-70 near Grainfield.

Hail in THOMAS, KANSAS
From 20-JUN-17 17:05:00 to 20-JUN-17 17:05:00 (CST-6)
Location: MENLO
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A few quarter and half dollar sized hailstones fell, but most of the hail was dime to nickel size.  The hail is still falling.  No rain is occurring with the hail.

Hail in LOGAN, KANSAS
From 20-JUN-17 15:28:00 to 20-JUN-17 15:28:00 (CST-6)
Location: MONUMENT
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Hail in SHERIDAN, KANSAS
From 20-JUN-17 18:10:00 to 20-JUN-17 18:10:00 (CST-6)
Location: HOXIE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The hail ranged from nickel to quarter in size.