Strong to severe thunderstorms developed over northeastern Oklahoma during the morning of the 5th, as warm, moist, and unstable air was drawn northward over a warm front that stretched across the area. These storms developed into northwestern Arkansas by mid morning. Strong instability, coupled with strong deep-layer wind shear, promoted the development of supercells that produced large hail up to five inches in diameter.
Another round of thunderstorms developed across northeastern Oklahoma during the afternoon as a cold front moved into the area. These storms moved east and southeast across portions of northwestern Arkansas during the evening. The strongest storms produced large hail up to quarter size.

Hail in BENTON, ARKANSAS
From 04-MAY-20 09:33:00 to 04-MAY-20 09:33:00 (CST-6)
Location: CAVE SPGS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BENTON, ARKANSAS
From 04-MAY-20 09:36:00 to 04-MAY-20 09:36:00 (CST-6)
Location: ROGERS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BENTON, ARKANSAS
From 04-MAY-20 09:39:00 to 04-MAY-20 09:39:00 (CST-6)
Location: MONTE NE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BENTON, ARKANSAS
From 04-MAY-20 09:42:00 to 04-MAY-20 09:42:00 (CST-6)
Location: ROGERS
Magnitude: 3.00 
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail larger than baseball size damaged vehicles, homes, and businesses.

Hail in BENTON, ARKANSAS
From 04-MAY-20 09:50:00 to 04-MAY-20 09:50:00 (CST-6)
Location: BENTONVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in FRANKLIN, ARKANSAS
From 04-MAY-20 21:33:00 to 04-MAY-20 21:33:00 (CST-6)
Location: WEBB CITY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in SEBASTIAN, ARKANSAS
From 04-MAY-20 22:28:00 to 04-MAY-20 22:28:00 (CST-6)
Location: OAK PARK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in FRANKLIN, ARKANSAS
From 04-MAY-20 22:46:00 to 04-MAY-20 22:46:00 (CST-6)
Location: BRANCH
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in WASHINGTON, ARKANSAS
From 04-MAY-20 09:07:00 to 04-MAY-20 09:07:00 (CST-6)
Location: JOHNSON
Magnitude: 5.00 
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Public

Hailstones were measured to five inches in diameter by a resident on Buckingham Drive. Hail damaged vehicles and homes in this area.

Hail in WASHINGTON, ARKANSAS
From 04-MAY-20 08:50:00 to 04-MAY-20 08:50:00 (CST-6)
Location: FAYETTEVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in WASHINGTON, ARKANSAS
From 04-MAY-20 08:51:00 to 04-MAY-20 08:51:00 (CST-6)
Location: EFAY
Magnitude: 1.75 
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Public

Golf ball size hail damaged vehicles, homes, and businesses.

Hail in WASHINGTON, ARKANSAS
From 04-MAY-20 09:11:00 to 04-MAY-20 09:11:00 (CST-6)
Location: JOHNSON
Magnitude: 1.50 
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ping pong ball size hail damaged vehicles and homes.

Hail in WASHINGTON, ARKANSAS
From 04-MAY-20 09:00:00 to 04-MAY-20 09:00:00 (CST-6)
Location: EFAY
Magnitude: 2.50 
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Public

Tennis ball size hail damaged vehicles, homes, and businesses.

Hail in WASHINGTON, ARKANSAS
From 04-MAY-20 09:15:00 to 04-MAY-20 09:15:00 (CST-6)
Location: JOHNSON
Magnitude: 4.00 
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Grapefruit size hail damaged vehicles, homes, and businesses.

Hail in BENTON, ARKANSAS
From 04-MAY-20 09:15:00 to 04-MAY-20 09:15:00 (CST-6)
Location: CENTERTON
Magnitude: 2.00 
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Public

Hail larger than golf ball size damaged vehicles, homes, and businesses.

Hail in WASHINGTON, ARKANSAS
From 04-MAY-20 09:02:00 to 04-MAY-20 09:02:00 (CST-6)
Location: EFAY
Magnitude: 3.00 
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail larger than baseball size damaged vehicles, homes, and businesses.

Hail in BENTON, ARKANSAS
From 04-MAY-20 09:25:00 to 04-MAY-20 09:25:00 (CST-6)
Location: BENTONVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BENTON, ARKANSAS
From 04-MAY-20 09:31:00 to 04-MAY-20 09:31:00 (CST-6)
Location: BELLA VISTA
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Half dollar size hail damaged vehicles and homes.