← Back to Dashboard
March 19, 2018 · Madison County · 2018
EF1

March 19, 2018

5:58 PM
Madison County, Alabama · Near Huntsville (ZIP 35739)
Fatalities
0
Injuries
0
Path Length
4.8 mi
Max Width
150 yd
DateMarch 19, 2018
Time5:58 PM
CountyMadison
CityHuntsville
Property Loss$0
Crop Loss$0
SourceNCEI 737793
NWS Birmingham

5 WNW Hazel Green - 3 N Hazel Green The tornado began near the intersection of Will Holt Road and Bobo Section Road where several large trees were snapped and uprooted. Significant damage occurred just east of this location, on Delynn Drive, where multiple trees were uprooted, some of which fell onto nearby homes. Minor damage continued east along Larkin Sullivan Road and Hills Chapel Road. Damage previously noted along Bobo Section Road--which included multiple snapped and uprooted trees, as well as damage to a few sheds and farm buildings--is now thought to be associated with strong rear-flank downdraft (RFD) winds. The rotation on Doppler radar is consistently located north of Bobo Section Road, but the RFD winds were particularly intense. The most notable damage occurred once the tornado reached Highway 231, where the tornado hit a building supply yard and nearby houses. More than a quarter of the shingles were removed from a single family home and a nearby tree was twisted apart. At the building supply store, metal roofing and siding covering the supplies were completely removed and the underlying wooden support structure broken. The metal roofing was strewn across the street and into a field. Security video footage confirms the presence of a circulation but the tornado appears to have been rain-wrapped. The tornado caused further shingle damage and snapped more trees across the highway near Walls Road and Leigh Ann Road, but the damage appears to diminish quickly beyond this point. Start: 34.9631/-86.6509 End: 34.9682/-86.5666

NWS EF Scale: F1

Event Narrative

The tornado began near the intersection of Will Holt Road and Bobo Section Road where several large trees were snapped and uprooted. Significant damage occurred just east of this location, on Delynn Drive, where multiple trees were uprooted, some of which fell onto nearby homes. Minor damage continued east along Larkin Sullivan Road and Hills Chapel Road.||The rear flank downdraft also produced damage south of the tornado path along Bob Section Road. These winds snapped and uprooted trees and damaged a few sheds and farm buildings.||The most notable tornado damage occurred upon reaching Highway 231, where the tornado hit a building supply yard and nearby houses. More than a quarter of the shingles were removed from a single family home and a nearby tree was twisted apart. At the building supply store, metal roofing and siding covering the supplies were |completely removed and the underlying wooden support structure broken. The metal roofing was strewn across the street and into a field. Security video footage confirms the presence of a circulation of a rain-wrapped tornado. The tornado caused further shingle damage and snapped more trees across the highway near Walls Road and Leigh Ann Road, but the damage appears to diminish quickly beyond this point.

Episode Narrative

An isolated supercell produced hail during the early afternoon hours across far northwest and north central Alabama. By mid afternoon, a cluster of supercells developed in northern Mississippi and tracked east-southeast through much of north Alabama through the early evening hours. Two main supercell clusters produced multiple tornadoes and very large hail. Tornadoes ranged in strength from EF-0 to EF-2. The largest hail fell in Cullman County, with widespread and severe damage reported as a result. The largest hail stone reported to the National Weather Service was 5.25 inches in diameter weighing 8.9 ounces.

Outbreak Context

Part of 16-tornado outbreak on March 19, 2018

Shared Episode Narrative

An isolated supercell produced hail during the early afternoon hours across far northwest and north central Alabama. By mid afternoon, a cluster of supercells developed in northern Mississippi and tracked east-southeast through much of north Alabama through the early evening hours. Two main supercell clusters produced multiple tornadoes and very large hail. Tornadoes ranged in strength from EF-0 to EF-2. The largest hail fell in Cullman County, with widespread and severe damage reported as a result. The largest hail stone reported to the National Weather Service was 5.25 inches in diameter weighing 8.9 ounces.

Source Data
NCEI Event ID: 737793
SWDI Tornado ID: 2018-03-19T23:57:48Z_KHTX_D1
SWDI Radar Site: KHTX
SWDI Signature: TVS

See Also

4.8 mi150 yd wide