Twelve tornadoes hit North Alabama during Friday’s severe weather, including one ranked an F-0 in Limestone County, according to officials from the National Weather Service.

Although tornadoes also were reported by residents in Elkmont and in Sugar Creek Estates in western Limestone, those spottings have not been confirmed. Weather officials continued work Monday to verify reports.

The most tornadoes in the North Alabama region were reported in Colbert County, where an F-0 and two F-1 tornadoes were confirmed. In the report released on the Huntsville office’s Web site at www.srh.noaa.gov/hun/stormsurveys, the tornado confirmed here touched down briefly just east of Interstate 65 along Interstate 565 near Greenbrier Road. The only damage was to a road sign that was blown over. The path length of this tornado was around 30 yards with a path width of 50 yards. Maximum wind speed was 60 miles an hour.

Other tornadoes confirmed include:

Madison County

• A very brief F-0 tornado touched down about four miles east-northeast of Hazel Green near the Alabama/ Tennessee state line. A few trees were twisted and uprooted by the short-lived tornado as it touched down along the state line and moved to about three miles west of Vanntown, Tenn. The path length of this tornado was 150 yards and the width of the tornado was 30 yards with a maximum wind speed reaching 60 miles an hour.

• Another very brief F-0 tornado touched down approximately three miles east/southeast of Hazel Green along Charley Patterson Road near the Sulphur Springs Community. A roof was peeled from a mobile home and insulation tossed into some nearby trees. No other damage was reported to nearby structures. The resident of the mobile home was inside at the time and was awakened by the storm but unharmed. Maximum wind speeds with this tornado were estimated to be at 60 mph.

Cullman County

• An F-1 tornado struck a chicken farm approximately five miles northeast of the city of Cullman, not far from the Pleasant Grove community. Two well-built chicken houses were collapsed and stripped of their metal roofing. A third chicken house was moderately damaged. Metal roofing was flung into nearby trees and twisted around their branches 40 to 50 yards away. A small wooden shed was completely demolished and a feed bin attached to the first chicken house was toppled. A branch was thrown as a projectile into the window of a nearby residence but the inhabitants of the house had taken shelter in the basement after receiving a tornado warning on NOAA Weather Radio. The path was approximately 200 yards in length and approximately 30 yards wide. Maximum wind speeds of this tornado were estimated at 80 miles an hour.

Lawrence and Morgan counties

• An F-1 tornado touched down in southeast Lawrence County about three miles southwest of Danville. This tornado initially produced maximum estimated wind speeds of 90 miles an hour and demolished a large barn.

The width of the tornado at this point was 100 yards. The tornado weakened to an F-0 intensity with maximum estimated winds at 70 miles an hour as it approached Danville. The tornado moved east-northeast through Danville, producing slight damage to Danville High School’s gym roof, the roofs of the press boxes at the football field, and the backstop and outfield walls at the baseball field.

The intensity of the tornado increased to F-1 just east of the school and uprooted a few large trees and lightly damaged some roofs and awnings of five homes. Maximum estimated winds of the tornado at this point were at 80 miles an hour. The tornado continued east to Craze Road, where estimated maximum winds increased to 90 miles an hour. At least four homes suffered minor roof and awning damage and a barn was destroyed on Craze Road. The width of the tornado at this point increased to 150 yards before it rapidly dissipated 300 yards east and northeast of Craze Road. The path length of the tornado was five miles.

• A separate tornado that occurred earlier Friday evening east of Decatur had an F-0 intensity. This tornado touched down along Highway 20, about two miles east of Decatur, and sporadically produced very light tree damage until it reached the Madison-Morgan county line.

A large billboard along I-65 was damaged as the tornado approached Madison County. The maximum estimated winds with this tornado were at 70 miles an hour. The path width of the tornado was 50 yards.

• A brief F-0 tornado occurred one mile northwest of Hatton. This tornado briefly touched down with maximum wind speeds estimated at around 60 miles an hour. The path length of this tornado was 30 yards and the width of the tornado was also at 30 yards.

• A second weak F-0 tornado briefly touched down about one mile east of Mount Hope. This tornado produced minor tree damage with maximum wind speeds estimated at 70 miles an hour. The path length of the tornado was 60 yards and the path width was at 50 yards.

• A third weak F-0 tornado briefly touched down near Caddo, about 10 miles northeast of Moulton.

This tornado also produced minor tree damage and roof damage to a manufactured home. Maximum wind speed of this tornado was 70 miles an hour.

The path length of the tornado was 100 yards and the path width was 60 yards.