A Mesoscale Convective Complex moved across southeast Louisiana and southern Mississippi during the early morning hours of the 11th. Unstable air in the wake of this system allowed the redevelopment of thunderstorms during the afternoon and evening hours.

Tornado in HARRISON, MISSISSIPPI
From 11-MAY-19 10:59:00 to 11-MAY-19 11:05:00 (CST-6)
Location: LIGANA
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A weak EF-0 tornado damage path was identified on high resolution satellite imagery near the Wolf River and Cemetery Rd in Harrison County, MS. Only minor defoliation and damage to tree tops was noted on satellite imagery with a more noticeable minor patch of tree damage near the bank of the Wolf River. This damage path is collocated with a tornado debris signature that was evident on KLIX radar imagery from May 11, 2019.

Tornado in HARRISON, MISSISSIPPI
From 11-MAY-19 12:18:00 to 11-MAY-19 12:23:00 (CST-6)
Location: RICEVILLE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-0 tornado damage path was identified in rural Harrison County, MS near McHenry Road. The tornado damage path consisted predominantly of minor softwood tree damage visible on high resolution satellite imagery. Maximum sustained winds were estimated near 80 mph based on high snaps of tree tops south of McHenry Rd.

Flash Flood in PEARL RIVER, MISSISSIPPI
From 11-MAY-19 02:00:00 to 11-MAY-19 12:00:00 (CST-6)
Location: WHITE SAND
Flood cause: Heavy Rain
Property damage: 750.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Widespread heavy rain of 6 to 10 inches and some areas near 15 inches of rainfall occurred over northern Pearl River resulting in significant flash floodng. Time of heaviest rainfall was between 1 am and 4 am CDT. Significant damage was reported in the Hillsdale area. Interstate 59 was closed at Mile Marker 32 during the morning hours, due to the Wolf River getting out of its banks. Numerous small streams getting out of their banks and washing out several bridges. Twenty rail cars derailed on the rail line near Hillsdale. A report was received of two local earthen dams compromised in the area. Some residents in rural areas were trapped in the homes by flood waters and some homes were flooded.  Flood waters moved downstream along the Wolf River and also the east and west Hobolochitto Rivers creating additional flooding over the next couple of days that did not directly receive heavy rainfall.  Heavy rainfall, limited visibility and traffic stopped on the Interstate 59 also contributed to a fatality auto accident.

Flood in HANCOCK, MISSISSIPPI
From 12-MAY-19 00:00:00 to 13-MAY-19 12:00:00 (CST-6)
Location: CRANE CREEK
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Runoff from heavy rainfall of 6 to 10 inches with locally higher amounts across northern Pearl River and Stone Counties on the morning of May 11th flowed south into the Woif River and caused flooding along its drainage. A few evacuations of residents took place as homes became isolated due to floodwaters.

Flood in HARRISON, MISSISSIPPI
From 12-MAY-19 06:00:00 to 14-MAY-19 12:00:00 (CST-6)
Location: RICEVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Runoff from heavy rainfall of 6 to 10 inches with locally higher amounts across northern Pearl River and Stone Counties reached the lower Wolf River drainage resulting in flooding and impacting roadways.  The Wolf River gage at Landon reached it second higher reading on record, 29.80 feet on the morning of May 13th and the gage above Gulfport reached its third highest reading, 14.46 ft on May 14th.

Flood in PEARL RIVER, MISSISSIPPI
From 11-MAY-19 18:00:00 to 13-MAY-19 06:00:00 (CST-6)
Location: POPLARVILLE
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Widespread heavy rain across northern Pearl River County of 6 to 10 inches with locally higher amounts during the early morning hours of May 11th caused run-off that moved downstream along the Wolf River and small tributaries resulting flooding of roads along that drainage. The downstream gage at Landon MS, Harrison County, reached its 2nd highest reading recorded of 29.80 feet.