A moist and unstable airmass combined with sea breezes produced strong to severe storms across the area. Large CAPE and shear in the hail growth zone fueled very large hail to form in a few severe storms over Nassau, Duval and St. Johns counties during the afternoon and evening.

Hail in DUVAL, FLORIDA
From 31-MAY-17 17:25:00 to 31-MAY-17 17:25:00 (EST-5)
Location: BAYARD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Quarter size hail was reported in Nocatee by an off-duty NWS Employee.

Heavy Rain in DUVAL, FLORIDA
From 30-MAY-17 23:00:00 to 31-MAY-17 16:10:00 (EST-5)
Location: NEPTUNE BEACH
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A report of 2.24 inches was measured in Neptune Beach.

Heavy Rain in DUVAL, FLORIDA
From 30-MAY-17 23:00:00 to 31-MAY-17 17:30:00 (EST-5)
Location: NEPTUNE BEACH
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

An observer measured daily rainfall of 3.01 inches in Jacksonville Beach.

Thunderstorm Wind in DUVAL, FLORIDA
From 31-MAY-17 15:10:00 to 31-MAY-17 15:10:00 (EST-5)
Location: (JAX)JACKSNVILLE INT
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The Jacksonville International Airport measured a wind gust of 66 mph. Dime size hail was also observed.

Thunderstorm Wind in DUVAL, FLORIDA
From 31-MAY-17 15:25:00 to 31-MAY-17 15:25:00 (EST-5)
Location: DUVAL
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

An off-duty NWS Employee estimated 60-65 mph winds in Oceanway.

Thunderstorm Wind in NASSAU, FLORIDA
From 31-MAY-17 15:30:00 to 31-MAY-17 15:30:00 (EST-5)
Location: NASSAUVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A tree was blown down southeast of Yulee. The time of damage was based on radar.

Thunderstorm Wind in ST. JOHNS, FLORIDA
From 31-MAY-17 17:20:00 to 31-MAY-17 17:20:00 (EST-5)
Location: PALM VLY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Trees were snapped along 20 Mile Road in Nocatee.

Hail in DUVAL, FLORIDA
From 31-MAY-17 14:55:00 to 31-MAY-17 14:55:00 (EST-5)
Location: BARFORD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail and wind gusts of 35-40 mph were observed about 5 miles north of the Jacksonville International Airport.

Hail in NASSAU, FLORIDA
From 31-MAY-17 14:55:00 to 31-MAY-17 14:55:00 (EST-5)
Location: CALLAHAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Quarter size hail was observed between Ratliff and Callahan. The time of the event was based on radar.

Hail in DUVAL, FLORIDA
From 31-MAY-17 15:50:00 to 31-MAY-17 15:50:00 (EST-5)
Location: (NRB)NAS MAYPORT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail that covered the ground was reported in Mayport.

Hail in DUVAL, FLORIDA
From 31-MAY-17 16:02:00 to 31-MAY-17 16:02:00 (EST-5)
Location: DONNER
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Half dollar size hail was reported from Dutton Island Park to just east of the Intracoastal Waterway in Atlantic Beach.

Hail in DUVAL, FLORIDA
From 31-MAY-17 16:10:00 to 31-MAY-17 16:10:00 (EST-5)
Location: NEPTUNE BEACH
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Golf ball size hail was reported in Neptune Beach.

Hail in DUVAL, FLORIDA
From 31-MAY-17 16:10:00 to 31-MAY-17 16:10:00 (EST-5)
Location: NEPTUNE BEACH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail was observed near Fletcher High School in Atlantic Beach.

Hail in DUVAL, FLORIDA
From 31-MAY-17 16:15:00 to 31-MAY-17 16:15:00 (EST-5)
Location: NEPTUNE BEACH
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Half dollar size hail was reported in Neptune Beach.

Hail in DUVAL, FLORIDA
From 31-MAY-17 16:22:00 to 31-MAY-17 16:22:00 (EST-5)
Location: NEPTUNE BEACH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Quarter size hail was reported along Penman Road.

Hail in DUVAL, FLORIDA
From 31-MAY-17 16:25:00 to 31-MAY-17 16:25:00 (EST-5)
Location: JACKSONVILLE BEACH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail was reported along Third Street in Jacksonville Beach.

Hail in DUVAL, FLORIDA
From 31-MAY-17 16:30:00 to 31-MAY-17 16:30:00 (EST-5)
Location: JACKSONVILLE BEACH
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Baseball size hail was reported in Neptune Beach.

Hail in DUVAL, FLORIDA
From 31-MAY-17 16:50:00 to 31-MAY-17 16:50:00 (EST-5)
Location: JACKSONVILLE BEACH
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Hailstones about 2 inches in size were observed at Ginger's Place Restaurant in Jacksonville Beach.

Hail in ST. JOHNS, FLORIDA
From 31-MAY-17 17:20:00 to 31-MAY-17 17:20:00 (EST-5)
Location: PONTE VEDRA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Golf ball size hail was observed along Solana Road in Ponte Vedra Beach.

Thunderstorm Wind in DUVAL, FLORIDA
From 31-MAY-17 16:12:00 to 31-MAY-17 16:12:00 (EST-5)
Location: FT GEORGE IS
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A roof was peeled off of a local business near the Fort George Ferry Landing along Hecksher Drive. Insulation from the roof was blown toward the west across the road. Winds were estimated between 60-70 mph.