A rare Southeast States derecho swept southward through the entire state of Alabama during the afternoon and evening hours of June 28th. This particular event featured a complex of thunderstorms that resulted in wind damage along a track nearly 400 miles long, originating in Central Tennessee and ending along the Gulf Coast. The southward movement of these storms was driven by clockwise flow around a ridge of high pressure centered over the Central United States.  In Central Alabama, the storms moved through during peak daytime heating with a very unstable air mass in place. CAPE values of 4,000-5,000 J/kg were common while bulk wind shear values were low due to the proximity of the upper ridge. Steep low-level lapse rates aided in momentum transfer of strong winds aloft to the surface. Wind damage occurred not only with the thunderstorms, but with the outflow as well.

Thunderstorm Wind in JEFFERSON, ALABAMA
From 28-JUN-18 14:06:00 to 28-JUN-18 14:08:00 (CST-6)
Location: (BHM)BIRMINGHAM ARPT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Birmingham International Airport recorded a wind gust of 58 mph and numerous trees reported uprooted across Jefferson County.

Thunderstorm Wind in CALHOUN, ALABAMA
From 28-JUN-18 12:58:00 to 28-JUN-18 13:00:00 (CST-6)
Location: JACKSONVILLE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees uprooted and power lines downed on Nisbet Lake Road.

Thunderstorm Wind in TALLAPOOSA, ALABAMA
From 28-JUN-18 14:30:00 to 28-JUN-18 14:32:00 (CST-6)
Location: JACKSONS GAP
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees uprooted across the town of Jackson's Gap.

Thunderstorm Wind in TALLAPOOSA, ALABAMA
From 28-JUN-18 14:32:00 to 28-JUN-18 14:34:00 (CST-6)
Location: DADEVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees uprooted in the city of Dadeville.

Thunderstorm Wind in JEFFERSON, ALABAMA
From 28-JUN-18 14:18:00 to 28-JUN-18 14:20:00 (CST-6)
Location: WOODWARD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Reports of 50-75 trees uprooted in the city limits of Bessemer.

Thunderstorm Wind in TALLAPOOSA, ALABAMA
From 28-JUN-18 14:29:00 to 28-JUN-18 14:31:00 (CST-6)
Location: DADEVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees uprooted around the city of Dadeville.

Thunderstorm Wind in ETOWAH, ALABAMA
From 28-JUN-18 12:40:00 to 28-JUN-18 12:42:00 (CST-6)
Location: TUMLIN GAP
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees uprooted on Rocky Hollow Road near the the town of Attala.

Thunderstorm Wind in ETOWAH, ALABAMA
From 28-JUN-18 12:40:00 to 28-JUN-18 12:42:00 (CST-6)
Location: EAST GASDEN
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Multiple trees uprooted and structural damage to a gas station roof in the city of Gadsden.

Thunderstorm Wind in ETOWAH, ALABAMA
From 28-JUN-18 12:37:00 to 28-JUN-18 12:39:00 (CST-6)
Location: REECE CITY
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Multiple trees uprooted in the city of Reece.

Thunderstorm Wind in COOSA, ALABAMA
From 28-JUN-18 14:08:00 to 28-JUN-18 14:10:00 (CST-6)
Location: MARBLE VLY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees uprooted across Coosa County.

Thunderstorm Wind in WALKER, ALABAMA
From 28-JUN-18 14:20:00 to 28-JUN-18 14:22:00 (CST-6)
Location: BRADLEYTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees uprooted across Walker County.

Thunderstorm Wind in SHELBY, ALABAMA
From 28-JUN-18 14:30:00 to 28-JUN-18 14:32:00 (CST-6)
Location: CALERA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Several trees uprooted and power lines downed in the city of Calera.

Thunderstorm Wind in ELMORE, ALABAMA
From 28-JUN-18 14:49:00 to 28-JUN-18 14:51:00 (CST-6)
Location: CLAUD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Large tree fell on home causing significant structural damage.  Numerous reports of trees uprooted across Elmore County.

Thunderstorm Wind in AUTAUGA, ALABAMA
From 28-JUN-18 15:14:00 to 28-JUN-18 15:16:00 (CST-6)
Location: BOOTH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees uprooted and power lines downed along Highway 82. Numerous trees reported uprooted across Autauga County.

Thunderstorm Wind in MONTGOMERY, ALABAMA
From 28-JUN-18 15:20:00 to 28-JUN-18 15:22:00 (CST-6)
Location: MONTGOMERY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous reports of trees uprooted and power lines downed in the city of Montgomery and across Montgomery County.  Between 11,000 and 12,000 customers without power.

Thunderstorm Wind in CHILTON, ALABAMA
From 28-JUN-18 15:00:00 to 28-JUN-18 15:02:00 (CST-6)
Location: MAPLESVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several trees uprooted in the town of Maplesville.

Thunderstorm Wind in HALE, ALABAMA
From 28-JUN-18 15:20:00 to 28-JUN-18 15:22:00 (CST-6)
Location: MOUNDVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees uprooted around the town of Moundville.

Thunderstorm Wind in HALE, ALABAMA
From 28-JUN-18 15:40:00 to 28-JUN-18 15:42:00 (CST-6)
Location: GREENSBORO
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees uprooted across the city of Greensboro with widespread power outages.

Thunderstorm Wind in HALE, ALABAMA
From 28-JUN-18 15:45:00 to 28-JUN-18 15:47:00 (CST-6)
Location: NEWBERN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees uprooted in the town of Newbern.

Thunderstorm Wind in TUSCALOOSA, ALABAMA
From 28-JUN-18 15:05:00 to 28-JUN-18 15:07:00 (CST-6)
Location: TUSCALOOSA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous reports (60-70) of uprooted trees across Tuscaloosa County.

Thunderstorm Wind in DALLAS, ALABAMA
From 28-JUN-18 15:05:00 to 28-JUN-18 15:07:00 (CST-6)
Location: SELMA SELFIELD ARPT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Widespread trees uprooted and power lines downed within the city of Selma.

Thunderstorm Wind in CHEROKEE, ALABAMA
From 28-JUN-18 12:25:00 to 28-JUN-18 12:27:00 (CST-6)
Location: CENTRE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Multiple trees uprooted in the Cedar Bluff community.

Thunderstorm Wind in ETOWAH, ALABAMA
From 28-JUN-18 12:40:00 to 28-JUN-18 12:42:00 (CST-6)
Location: BALLPLAY
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees and power lines downed in the Coates Bend area.

Thunderstorm Wind in CALHOUN, ALABAMA
From 28-JUN-18 13:08:00 to 28-JUN-18 13:10:00 (CST-6)
Location: ANNISTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees uprooted in the city of Anniston and across Calhoun County.

Thunderstorm Wind in PIKE, ALABAMA
From 28-JUN-18 16:00:00 to 28-JUN-18 16:02:00 (CST-6)
Location: TROY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees uprooted and power lines downed in the city of Troy and across Pike County.

Thunderstorm Wind in MARENGO, ALABAMA
From 28-JUN-18 16:00:00 to 28-JUN-18 16:02:00 (CST-6)
Location: FAUNSDALE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees uprooted in the town of Faunsdale.

Thunderstorm Wind in CALHOUN, ALABAMA
From 28-JUN-18 13:15:00 to 28-JUN-18 13:16:00 (CST-6)
Location: DE ARMANVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees uprooted and blocking lanes on I-20 at exit 191.

Thunderstorm Wind in ST. CLAIR, ALABAMA
From 28-JUN-18 13:04:00 to 28-JUN-18 13:06:00 (CST-6)
Location: RAGLAND
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees uprooted in the city of Ragland.

Thunderstorm Wind in TALLADEGA, ALABAMA
From 28-JUN-18 13:19:00 to 28-JUN-18 13:21:00 (CST-6)
Location: MUNFORD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees uprooted in the Munford community and across the northern part of Talladega County.

Thunderstorm Wind in CLAY, ALABAMA
From 28-JUN-18 13:39:00 to 28-JUN-18 13:41:00 (CST-6)
Location: LINEVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Lineville city police reported a fatality when a large tree fell on a moving vehicle.  The vehicle was traveling on Martha Street.

Thunderstorm Wind in MARENGO, ALABAMA
From 28-JUN-18 22:38:00 to 28-JUN-18 22:40:00 (CST-6)
Location: SWEET WATER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees uprooted in the town of Sweet Water.

Hail in MARION, ALABAMA
From 28-JUN-18 15:42:00 to 28-JUN-18 15:42:00 (CST-6)
Location: BARNESVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in RANDOLPH, ALABAMA
From 28-JUN-18 13:36:00 to 28-JUN-18 13:38:00 (CST-6)
Location: RICE MILL
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees uprooted across the northern part of Randolph County.

Thunderstorm Wind in CHAMBERS, ALABAMA
From 28-JUN-18 14:00:00 to 28-JUN-18 14:02:00 (CST-6)
Location: CHAPEL HILL
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roofs missing from several barns and windows blown out at a residence.

Thunderstorm Wind in BLOUNT, ALABAMA
From 28-JUN-18 12:40:00 to 28-JUN-18 12:42:00 (CST-6)
Location: CHAMBLEES MILL
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Several trees uprooted and power lined downed along County Road 26 near the city of Blountsville.

Thunderstorm Wind in BLOUNT, ALABAMA
From 28-JUN-18 12:48:00 to 28-JUN-18 12:50:00 (CST-6)
Location: ONEONTA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees uprooted and power lines downed in the city of Oneonta and across the northern portions of Blount County.

Thunderstorm Wind in TALLADEGA, ALABAMA
From 28-JUN-18 13:58:00 to 28-JUN-18 14:00:00 (CST-6)
Location: SYLACAUGA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Several trees uprooted in the city of Sylacauga and damage to a roof at a drug store at the corner of US-21 and North Broadway Avenue.

Thunderstorm Wind in SHELBY, ALABAMA
From 28-JUN-18 14:04:00 to 28-JUN-18 14:06:00 (CST-6)
Location: SIMMSVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees uprooted along Highway 280 and across Shelby County.