A potent storm system developed across the Inter-Mountain West before tracking east across the Lower Mississippi Valley region February 21st. A rather cold and dry air mass was entrenched across the region through the 20th, with dew points in the teens and twenties. In fact, as atmospheric lift began to approach the area and some light showers moved across portions of the Delta, light sleet occurred. There was not enough sleet to cause travel problems, but it showed how cold the atmosphere was prior to the incoming low pressure system.
By the morning of the 21st, the warm front was still located along the Mississippi Gulf Coast. Dew points were still in the upper 30s as of late morning across Central Mississippi. Some showers and isolated thunderstorms moved through the area producing small hail. The warm front slowly moved north and by mid to late afternoon, dew points had finally increased to the mid and upper 50s across the I-20 corridor and were in the mid 60s further south. This helped to fuel additional showers and thunderstorms as the main upper level storm system tracked northeast. As the moisture increased across the region, the combination of strong wind shear and an unstable air mass south of the warm front became more conducive to supercell and tornado development. Strong storms were moving through the southwestern portions of the region later that afternoon.
Around 5 pm storms began to exhibit rotation on radar and a tornado developed in Concordia Parish just south of Clayton. This tornado produced some damage to some homes and trailers in the area. As the low pressure gradually tracked northeast and the warm front lifted further north, the environment became more favorable for tornadoes in southern Mississippi. One storm had continuous rotation as it moved from north-central Louisiana into south-central Mississippi. This storm crossed southeast Lawrence to northwest Marion counties around 10 pm and continued to track northeast. Rotation began to intensify and a strong tornado developed around 10:30 pm a few miles southwest of Bassfield. This tornado caused minor to moderate damage to some homes and buildings, snapped some power poles and caused extensive tree damage. Another weak tornado developed around 11 pm a few miles southwest of Collins snapping some trees and causing some damage to a mobile home and a chicken house. Scattered storms continued to affect the Pine Belt area into the early morning hours on the 22nd, before finally moving out of the area.
In addition to severe weather, flash flooding became an issue in central Mississippi. From the morning of the 21st through the early morning of the 22nd, the heaviest rainfall occurred over parts of central Mississippi, where 3 to 4 inches of rain fell and flash flooding was reported in the area.

Hail in LAMAR, MISSISSIPPI
From 22-FEB-13 18:13:00 to 22-FEB-13 18:13:00 (CST-6)
Location: SUMRALL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Dime to quarter size hail fell in Sumrall.

Hail in MARION, MISSISSIPPI
From 22-FEB-13 17:54:00 to 22-FEB-13 17:54:00 (CST-6)
Location: COLUMBIA MARION ARPT
Magnitude: 1.50 
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Quarter to ping pong ball size hail fell just northeast of Columbia.

Thunderstorm Wind in FRANKLIN, MISSISSIPPI
From 21-FEB-13 15:50:00 to 21-FEB-13 15:50:00 (CST-6)
Location: ROXIE
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: NWS Employee

A pine tree was snapped along Highway 84.

Flash Flood in HINDS, MISSISSIPPI
From 21-FEB-13 17:00:00 to 21-FEB-13 18:00:00 (CST-6)
Location: JACKSON HAWKINS FLD
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several streets were flooded in and near downtown Jackson.

Hail in JEFFERSON, MISSISSIPPI
From 21-FEB-13 18:52:00 to 21-FEB-13 18:52:00 (CST-6)
Location: FAYETTE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in ADAMS, MISSISSIPPI
From 21-FEB-13 15:25:00 to 21-FEB-13 15:25:00 (CST-6)
Location: CRANFIELD
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees were blown down on Cranfield Road and Liberty Road.

Flash Flood in RANKIN, MISSISSIPPI
From 21-FEB-13 19:00:00 to 21-FEB-13 19:20:00 (CST-6)
Location: FLOWOOD
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Social Media

Street flooding occurred in Pearl on Pemberton Drive. Skyline Drive was closed to due to street flooding.

Thunderstorm Wind in COPIAH, MISSISSIPPI
From 21-FEB-13 19:50:00 to 21-FEB-13 19:50:00 (CST-6)
Location: CRYSTAL SPGS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down on Highway 51.

Flash Flood in RANKIN, MISSISSIPPI
From 21-FEB-13 20:30:00 to 21-FEB-13 21:00:00 (CST-6)
Location: FLORENCE
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several creeks and ditches were flooded. Water was standing in the yards of a few homes.

Flash Flood in SCOTT, MISSISSIPPI
From 21-FEB-13 21:00:00 to 21-FEB-13 21:30:00 (CST-6)
Location: FOREST MUNI ARPT
Flood cause: Heavy Rain
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several roads were flooded across the southern part of the county.

Flash Flood in SMITH, MISSISSIPPI
From 21-FEB-13 22:00:00 to 21-FEB-13 23:00:00 (CST-6)
Location: POLKVILLE
Flood cause: Heavy Rain
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A couple of roads in northwest Smith County were flooded. A part of Highway 13 near the Smith and Scott County line was flooded for a short time.

Flash Flood in LAUDERDALE, MISSISSIPPI
From 21-FEB-13 22:23:00 to 21-FEB-13 23:00:00 (CST-6)
Location: MERIDIAN
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Broadcast Media

There was flooding in the Briarwood section of Meridian.

Tornado in JEFFERSON DAVIS, MISSISSIPPI
From 21-FEB-13 22:31:00 to 21-FEB-13 22:41:00 (CST-6)
Location: HATHORN
Tornado F-scale: EF2
Property damage: 175.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado started along Smith Lane just north of Stowey Parkman Road. The tornado moved northeast, snapping and uprooting a number of trees and causing some minor damage to structures as it passed Wiley Dyess Road and T.W. Bass Road. The tornado reached its maximum intensity as it moved along and across Green Creek Road and Carson-Bunker Hill Road. Here two well built brick frame homes were heavily damaged, power poles were snapped, a well built farm building was destroyed. Another outbuilding was also destroyed, extensive tree damage occurred and several other homes and buildings suffered minor to moderate damage. The tornado weakened as it crossed Hunnicut Road snapping a few trees and dissipated before reaching State Highway 42 west of Bassfield. Maximum wind speeds were estimated at 120 mph.

Tornado in COVINGTON, MISSISSIPPI
From 21-FEB-13 23:00:00 to 21-FEB-13 23:01:00 (CST-6)
Location: WILLIAMSBURG
Tornado F-scale: EF0
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This brief tornado moved along McDonald Chapel Road, snapping several trees, blowing the skirting out from under a mobile home and peeling back a small part of a roof from a chicken house. Maximum wind speeds were estimated at 80 mph.

Flash Flood in JEFFERSON DAVIS, MISSISSIPPI
From 21-FEB-13 23:00:00 to 21-FEB-13 23:15:00 (CST-6)
Location: BASSFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hunnicut Road was flooded for a short time.

Hail in ADAMS, MISSISSIPPI
From 22-FEB-13 12:58:00 to 22-FEB-13 12:58:00 (CST-6)
Location: SIBLEY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in ADAMS, MISSISSIPPI
From 22-FEB-13 13:13:00 to 22-FEB-13 13:13:00 (CST-6)
Location: CRANFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Nickel to quarter size hail covered a patio southwest of Cranfield.

Hail in ADAMS, MISSISSIPPI
From 22-FEB-13 13:35:00 to 22-FEB-13 13:35:00 (CST-6)
Location: KINGSTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Quarter size hail fell in the Kingston community.

Hail in FRANKLIN, MISSISSIPPI
From 22-FEB-13 13:47:00 to 22-FEB-13 13:47:00 (CST-6)
Location: ROXIE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in COPIAH, MISSISSIPPI
From 22-FEB-13 14:45:00 to 22-FEB-13 14:45:00 (CST-6)
Location: HOPEWELL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Nickel to quarter size hail fell in Hopewell.

Hail in COVINGTON, MISSISSIPPI
From 22-FEB-13 18:22:00 to 22-FEB-13 18:22:00 (CST-6)
Location: SANFORD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in COPIAH, MISSISSIPPI
From 21-FEB-13 20:30:00 to 21-FEB-13 21:15:00 (CST-6)
Location: CRYSTAL SPGS
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Many streets were flooded around Crystal Springs. Some of the roads had a lot of water over them. Several roads that rarely flood had water over them.

Hail in SMITH, MISSISSIPPI
From 22-FEB-13 14:45:00 to 22-FEB-13 14:45:00 (CST-6)
Location: POLKVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager