A cold front moved into northwest Arkansas on the morning of the 20th and lingered in the state until the night of the 21st. While the front was making its way slowly across the state, an area of low pressure arrived from the southwest.  The result was heavy rain and flash flooding in the cooler air behind the front. In the warmer air ahead of the front, isolated tornadoes occurred.
Some of the larger rainfall totals for the 48 hours that included the 20th and 21st were:  7.92 inches 3.3 miles west of Carlisle (Lonoke Co.), 7.68 inches at Little Dixie (Woodruff Co.), 7.66 inches at Des Arc (Prairie Co.), 7.37 inches at Keo (Lonoke Co.), 6.71 inches at Georgetown (White Co.), 6.50 inches at Griffithville (White Co.), 6.45 inches at Augusta (Woodruff Co.), 6.29 inches at Chenal Valley (Pulaski County), 6.15 inches at DeGray Lake (Clark Co.), 6.12 inches 8.8 miles west of Little Rock (Pulaski Co.), and 6.00 inches 0.5 mile southwest of Beebe (White Co.).  Numerous other stations reported amounts between 4 and 6 inches, especially in eastern, central, and southern parts of Arkansas.

Flash Flood in MARION, ARKANSAS
From 21-DEC-13 08:45:00 to 21-DEC-13 11:30:00 (CST-6)
Location: PEEL
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several county roads were under water.

Flash Flood in WHITE, ARKANSAS
From 21-DEC-13 12:30:00 to 21-DEC-13 16:00:00 (CST-6)
Location: HICKORY FLAT
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: COOP Observer

Streets flooded in Searcy, and several intersections were closed. Mash Creek northwest of Beebe left its banks. One lane of Arkansas 36 caved in due to a washout near Georgetown. A number of county roads flooded.

Flash Flood in LONOKE, ARKANSAS
From 21-DEC-13 12:00:00 to 21-DEC-13 18:30:00 (CST-6)
Location: AUSTIN
Flood cause: Heavy Rain
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Social Media

Numerous roads in the county flooded.

Flash Flood in JACKSON, ARKANSAS
From 21-DEC-13 13:00:00 to 21-DEC-13 15:30:00 (CST-6)
Location: SWIFTON
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Department of Highways

Sections of Arkansas 224 and Arkansas 226 near Swifton flooded, as did several county roads.

Flash Flood in SHARP, ARKANSAS
From 21-DEC-13 13:30:00 to 21-DEC-13 15:30:00 (CST-6)
Location: HARDY OZARK ACRES AR
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: NWS Employee

Martin's Creek left its banks.

Flash Flood in JEFFERSON, ARKANSAS
From 21-DEC-13 14:30:00 to 21-DEC-13 16:00:00 (CST-6)
Location: BREWSTER
Flood cause: Heavy Rain
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Three cars stalled in high water on Hazel St. near Jefferson Regional Medical Center.

Thunderstorm Wind in DREW, ARKANSAS
From 21-DEC-13 14:44:00 to 21-DEC-13 14:44:00 (CST-6)
Location: MONTICELLO MUNI ARPT
Magnitude: 50.00 MG
Crop damage: 0.00K
Reported by: ASOS

Flash Flood in DREW, ARKANSAS
From 21-DEC-13 15:00:00 to 21-DEC-13 18:30:00 (CST-6)
Location: ROCK SPGS
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Water covered several roads and entered an office in downtown Monticello.

Flash Flood in SALINE, ARKANSAS
From 21-DEC-13 15:00:00 to 21-DEC-13 16:00:00 (CST-6)
Location: BAUXITE JCT
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Social Media

Bishop Park in Bryant flooded.

Flood in JACKSON, ARKANSAS
From 21-DEC-13 16:00:00 to 22-DEC-13 08:50:00 (CST-6)
Location: REAMEY
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Department of Highways

Water entered a business in Newport and a half-mile section of Arkansas 384 flooded in Newport.

Flood in LONOKE, ARKANSAS
From 21-DEC-13 16:15:00 to 22-DEC-13 10:30:00 (CST-6)
Location: MCCREANOR
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Department of Highways

Arkansas 381 was closed due to water over the highway.

Flood in JACKSON, ARKANSAS
From 21-DEC-13 15:30:00 to 28-DEC-13 11:30:00 (CST-6)
Location: SWIFTON
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Department of Highways

Sections of Arkansas 224 and Arkansas 226 were flooded for a week.

Flood in JACKSON, ARKANSAS
From 21-DEC-13 17:00:00 to 22-DEC-13 08:00:00 (CST-6)
Location: NEWPORT MUNI ARPT
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Department of Highways

Arkansas 18 was closed due to flooding.

Flood in WHITE, ARKANSAS
From 21-DEC-13 18:00:00 to 23-DEC-13 09:30:00 (CST-6)
Location: GRIFFITHVILLE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Department of Highways

Arkansas 11 was closed due to flooding.

Flood in LONOKE, ARKANSAS
From 21-DEC-13 21:00:00 to 22-DEC-13 10:00:00 (CST-6)
Location: LONOKE
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Department of Highways

Arkansas 89 was closed due to flooding.

Flood in CLEVELAND, ARKANSAS
From 21-DEC-13 23:00:00 to 22-DEC-13 09:00:00 (CST-6)
Location: CALMER
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Department of Highways

Arkansas 114 was closed due to flooding.

Flood in WHITE, ARKANSAS
From 22-DEC-13 12:00:00 to 23-DEC-13 09:30:00 (CST-6)
Location: WEST PT
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Department of Highways

Arkansas 323 was closed due to flooding.

Flood in JACKSON, ARKANSAS
From 22-DEC-13 12:00:00 to 24-DEC-13 10:30:00 (CST-6)
Location: CENTERVILLE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Department of Highways

Arkansas 145 was closed due to flooding.

Flood in YELL, ARKANSAS
From 21-DEC-13 20:50:00 to 23-DEC-13 17:40:00 (CST-6)
Location: DANVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Heavy rainfall on the 21st caused the Petit Jean River at Danville to rise above flood stage during the evening hours, falling below flood stage on the evening of the 23rd.

Flood in OUACHITA, ARKANSAS
From 22-DEC-13 23:05:00 to 28-DEC-13 13:10:00 (CST-6)
Location: CAMDEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Heavy rainfall on the 21st caused the Ouachita River at Camden to rise above flood stage during the late evening hours on the 22nd. This river fell below flood stage several days later, during the afternoon of the 28th.

Flood in CLARK, ARKANSAS
From 21-DEC-13 21:45:00 to 22-DEC-13 16:00:00 (CST-6)
Location: CADDO VLY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Heavy rainfall on the 21st caused the Ouachita River at Arkadelphia to rise above flood stage during the evening hours, falling below flood stage during the afternoon hours on the 22nd.

Flood in SALINE, ARKANSAS
From 21-DEC-13 17:15:00 to 22-DEC-13 09:50:00 (CST-6)
Location: SHAW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Heavy rainfall on the 21st caused the Saline River at Benton to rise above flood stage during the afternoon hours, falling below flood stage during the morning hours on the 22nd.

Flood in SHARP, ARKANSAS
From 21-DEC-13 15:30:00 to 21-DEC-13 23:00:00 (CST-6)
Location: HARDY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Heavy rainfall on the 21st caused the Spring River at Hardy to rise above flood stage during the afternoon hours, falling below flood stage late that same evening.

Tornado in DESHA, ARKANSAS
From 21-DEC-13 16:53:00 to 21-DEC-13 16:58:00 (CST-6)
Location: HALLEY
Tornado F-scale: EF1
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado moved out of Chicot County into Desha County. One mobile home was knocked off its foundation, had its porch torn off, and had a large metal intermodal shipping container in the back yard overturn and crash into the rear wall of the mobile home, smashing in the kitchen wall. A house had its porch torn off, roof damage, a hole punched in a wall, and broken windows. Another house had a considerable amount of roofing material torn off. At another house, the attached carport was torn off, with much of it landing on the roof of the house. Several sheds were destroyed, large trees were blown down, and several power poles were snapped off. The tornado then exited Desha County 5.1 miles east-northeast of Halley and re-entered Chicot County near the Yellow Bend Port.

Tornado in JEFFERSON, ARKANSAS
From 20-DEC-13 18:33:00 to 20-DEC-13 18:35:00 (CST-6)
Location: REDFIELD
Tornado F-scale: EF0
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Numerous trees were uprooted or snapped, with power lines blown down in places. A few homes had roof damage. The corner of one roof was removed, with some damage inside the house. A trampoline and swing set were thrown aloft and wrapped around trees. Several sheds were destroyed.

Thunderstorm Wind in SALINE, ARKANSAS
From 20-DEC-13 21:30:00 to 20-DEC-13 21:30:00 (CST-6)
Location: COLLEGEVILLE
Magnitude: 56.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

Several roofs were damaged and a number of fences were blown down.

Heavy Rain in NEWTON, ARKANSAS
From 21-DEC-13 00:15:00 to 21-DEC-13 03:15:00 (CST-6)
Location: BASS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Rainfall totaled 2.75 inches in 3 hours.

Flash Flood in PULASKI, ARKANSAS
From 21-DEC-13 06:50:00 to 21-DEC-13 16:00:00 (CST-6)
Location: PINNACLE
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Employee

A number of roads in Pulaski County were flooded, including areas north of Little Rock Air Force Base; Sherwood; North Little Rock; and downtown, west, and southwest Little Rock.