8:15 p.m. update
A flurry of tornado warnings that had been issued across a wide swath of south Arkansas have expired and none were active as of 8:15 p.m. But a tornado watch and a flash flood warning continue through later Sunday night for large parts of the state as strong storms move through the region.
There were scattered reports of damage and flooding from heavy rains. In Bearden, a suspected tornado downed trees and damaged buildings, though there were no preliminary reports of injuries.
A flash flood warning remained in effect for much of the western and central Arkansas through shortly before midnight.
"Doppler radar indicated several inches of rain has fallen in the past several hours across the warned area," the weather service said in a statement before 6 p.m. "With additional heavy rainfall expected this evening, flash flooding is likely."
The tornado watch, meanwhile, covered a large part of south Arkansas and was to continue until 10 p.m.
See Monday's Arkansas Democrat-Gazette for full weather coverage.
4:30 p.m. update
Damage from a possible tornado has been reported in Bearden. Click here for details.
4:20 p.m. update
The National Weather Service says authorities have reported a tornado on the ground in the Calhoun area west of Hampton.
3:54 p.m. update
A new tornado warning has been issued for northwestern Nevada and southeastern Hempstead counties for a "radar-confirmed tornado," the weather service said.
The agency said at 3:45 p.m. that a tornado-producing storm was near Patmos and Hope and moving north at 35 mph.
3:51 p.m. update
Tornado warnings have been issued for parts of south Arkansas.
The National Weather Service at 3:44 p.m. said a severe thunderstorm capable of producing a tornado was over Norphlet and moving north at 30 mph.
A tornado warning is in effect for central Calhoun County and southeastern Ouachita County through 4:30 p.m.
A second tornado warning covered south-central Union County until 4:15 p.m. The weather service said a thunderstorm capable of producing a tornado was over Farmerville at 3:40 p.m. and was heading north at 40 mph.
3:28 p.m. update
A severe thunderstorm warning has been issued for parts of three counties in south Arkansas.
The National Weather Service said northwestern Calhoun County, south-central Dallas County and northeastern Ouachita County will be under the warning until 4:15 p.m.
The storm was reportedly packing 60 mph wind gusts and quarter-sized hail.
The agency said a storm was near Highland Industrial park at 3:22 p.m. and moving north at 30 mph.
2:32 p.m. update
The severe thunderstorm warning that had been issued for two counties in western Arkansas was allowed to expire at 2:30 p.m.
1:57 p.m. update
A severe thunderstorm warning is in effect for southeastern Montgomery County and Pike County.
The National Weather Service said a severe storm was over Murfreesboro at 1:48 p.m. and moving north at 35 mph.
The storm was reportedly packing wind gusts up to 70 mph, making damage to mobile homes, roofs and outbuildings likely, the weather service said.
The warning runs through 2:30 p.m.
1:48 p.m. update
A new flash flood warning has been issued for several counties in Northwest Arkansas.
The National Weather Service at 1:45 p.m. issued the warning for Madison, Franklin, Carroll, Sebastian and Crawford counties as well as southeastern Washington County.
The warning runs through 7:45 p.m.
Heavy rain was continuing to fall in the warned area early Sunday afternoon after an estimated 2 to 6 inches fell earlier in the day. Another 2 to 4 inches of rain are expected.
"Several roadways will remain underwater and impassable," the weather service said in a statement.
Benton County is under a separate flash flood warning that goes until 5:45 p.m.
1:22 p.m. update
A new flash flood warning is in effect for parts of Montgomery, Yell, Scott, Pike, Logan and Polk counties.
The weather service issued the new warning shortly after 1 p.m. as a heavy band of rainfall moved through the area. The area was expected to get another 2 to 3 inches of rain.
The warning continues through 4 p.m.
In a statement, the weather service advised motorists to avoid flooded roads as most flood deaths occur in vehicles.
South of the flood-warned area, two Arkansas counties — Lafayette and Miller — are included in a tornado watch that runs through 4 p.m.
Noon update
The tornado warning that had covered part of Polk County was expired just before noon.
11:43 a.m. update
A tornado warning has been issued for part of Polk County in western Arkansas.
The National Weather Service said at 11:32 a.m. that a severe storm capable of producing a tornado was near Grannis in southwestern Polk County and moving north at 40 mph.
The storm was near Wickes at 11:43 a.m. and was moving north at 35 mph.
The warning runs through noon.
10:51 a.m. update
Severe storms are possible Sunday as a cold front moves across Arkansas and brings more heavy rain to the region, the National Weather Service said.
The system is moving southeast across the state with the best chance for severe weather coming in the southern half. Much of that region is under a slight risk for severe weather with roughly the southwest quarter of Arkansas under an enhanced risk, which is one level higher.
The weather service said tornadoes, damaging winds and large hail are all possible.
A flash flood watch was in effect for much of the state. Flash flood warnings were in effect late Sunday morning for some parts of Montgomery, Scott, Yell and Logan counties in western Arkansas and Randolph, Greene, Clay and Lawrence in eastern Arkansas.
Flood warnings were also in effect along rivers in the state including the Arkansas River. Moderate flooding was forecast on the Arkansas River at Little Rock.
Rainfall is expected to total 2 to 6 inches with the highest amounts coming over the Ouachita and Ozark Mountain regions, the weather service said in a statement.