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Storm Events Database
Event Details
| Event | Heavy Rain |
| State | ALABAMA |
| County/Area | MARSHALL |
| WFO | HUN |
| Begin Date | 04/20/2011 23:25:00 CST-6 |
| Begin Range | 1 |
| Begin Azimuth | E |
| Begin Location | BOAZ |
| Begin Lat/Lon | 34.2/-86.16 |
| End Date | 04/20/2011 23:55:00 CST-6 |
| Deaths Direct/Indirect | 0/0 (fatality details below, when available...) |
| Injuries Direct/Indirect | 0/0 |
| Property Damage | 0.00K |
| Crop Damage | 0.00K |
| Episode Narrative | A long lived quasi-linear convective system (QLCS) developed in northern and central Mississippi and tracked eastward through northern Alabama during the early morning hours of the 20th. A bow echo with a strong meso-vortex produced a long swath of wind damage from southern Franklin across Lawrence, Morgan, Cullman and Marshall counties. Numerous trees were uprooted or snapped, indicating wind speeds of at least 70 mph or higher. Trees were toppled onto two homes in Morgan and Cullman counties resulting in two injuries. As the bow echo continued eastward, numerous reports of trees and damage to small structures were reported. Following the storms, a meteorological phenomenon known as a wake low developed which produced a short period of damaging non-thunderstorm winds in Marshall County. A wind gust of 60 mph was registered with this system at the Albertville, Alabama AWOS station (K8A0). Several power outages were reported through the event. A mesoscale convective system rolled through northern and central Alabama during the late evening hours of the 20th, and exited shortly after midnight on the 21st. Prolific lightning was generated with mainly elevated thunderstorms within the anvil region of this system across northern Alabama. A line of strong to severe thunderstorms extended south from the upper level circulation center which tracked east from northwest and west central Alabama. The storms produced sporadic thunderstorm wind damage, knocking down several trees in Franklin County. Most of the damage further east were tree limbs that did cause isolated small power outages. Although most areas received one half to one inch of rainfall, there were local amounts of one to just over two inches. This resulted in mostly nuisance minor street flooding, although one road was closed in Franklin County due to more substantial runoff. |
| Event Narrative | Heavy rain caused minor street flooding around Boaz. |
All events for this episode:
| Location | County/Zone | St. | Date | Time | T.Z. | Type | Mag | Dth | Inj | PrD | CrD |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Totals: | 0 | 2 | 165.60K | 0.00K | |||||||
| RED BAY MUNI ARPT | FRANKLIN CO. | AL | 04/20/2011 | 03:18 | CST-6 | Lightning | 0 | 0 | 5.00K | 0.00K | |
| RUSSELLVILLE | FRANKLIN CO. | AL | 04/20/2011 | 03:35 | CST-6 | Lightning | 0 | 0 | 25.00K | 0.00K | |
| VINA | FRANKLIN CO. | AL | 04/20/2011 | 03:35 | CST-6 | Lightning | 0 | 0 | 10.00K | 0.00K | |
| CHESTNUT RIDGE | FRANKLIN CO. | AL | 04/20/2011 | 03:40 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| LEOLA | LAWRENCE CO. | AL | 04/20/2011 | 03:58 | CST-6 | Tornado | EF1 | 0 | 0 | 0.00K | 0.00K |
| MOULTON | LAWRENCE CO. | AL | 04/20/2011 | 04:05 | CST-6 | Thunderstorm Wind | 54 kts. MG | 0 | 0 | 0.00K | 0.00K |
| PUMPKIN CENTER | MORGAN CO. | AL | 04/20/2011 | 04:10 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 3.00K | 0.00K |
| PRICEVILLE | MORGAN CO. | AL | 04/20/2011 | 04:13 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 10.00K | 0.00K |
| HARTSELLE | MORGAN CO. | AL | 04/20/2011 | 04:15 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 4.00K | 0.00K |
| UNION | MORGAN CO. | AL | 04/20/2011 | 04:15 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 1 | 0.00K | 0.00K |
| GANDYS COVE | MORGAN CO. | AL | 04/20/2011 | 04:15 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| HARTSELLE | MORGAN CO. | AL | 04/20/2011 | 04:20 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| STRINGER | MORGAN CO. | AL | 04/20/2011 | 04:20 | CST-6 | Thunderstorm Wind | 60 kts. EG | 0 | 0 | 0.00K | 0.00K |
| CULLMAN | CULLMAN CO. | AL | 04/20/2011 | 04:20 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| BROOKLYN | CULLMAN CO. | AL | 04/20/2011 | 04:28 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 1 | 0.00K | 0.00K |
| NAT | JACKSON CO. | AL | 04/20/2011 | 04:30 | CST-6 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| LARKINSVILLE | JACKSON CO. | AL | 04/20/2011 | 04:30 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| GREENBRIER | LIMESTONE CO. | AL | 04/20/2011 | 04:30 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| EDDY | MARSHALL CO. | AL | 04/20/2011 | 04:32 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| UNION GROVE | MARSHALL CO. | AL | 04/20/2011 | 04:35 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| ARAB | MARSHALL CO. | AL | 04/20/2011 | 04:50 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| ROSLIE | JACKSON CO. | AL | 04/20/2011 | 04:54 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| DAWSON | DEKALB CO. | AL | 04/20/2011 | 05:00 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| MARSHALL (ZONE) | MARSHALL (ZONE) | AL | 04/20/2011 | 05:04 | CST-6 | High Wind | 52 kts. MG | 0 | 0 | 0.00K | 0.00K |
| MARSHALL (ZONE) | MARSHALL (ZONE) | AL | 04/20/2011 | 05:05 | CST-6 | High Wind | 50 kts. EG | 0 | 0 | 100.00K | 0.00K |
| MARSHALL (ZONE) | MARSHALL (ZONE) | AL | 04/20/2011 | 05:10 | CST-6 | High Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| GERALDINE | DEKALB CO. | AL | 04/20/2011 | 05:10 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| MARSHALL (ZONE) | MARSHALL (ZONE) | AL | 04/20/2011 | 05:15 | CST-6 | High Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| MARSHALL (ZONE) | MARSHALL (ZONE) | AL | 04/20/2011 | 05:30 | CST-6 | High Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| ROSLIE | JACKSON CO. | AL | 04/20/2011 | 05:30 | CST-6 | Thunderstorm Wind | 70 kts. EG | 0 | 0 | 0.00K | 0.00K |
| ROSLIE | JACKSON CO. | AL | 04/20/2011 | 05:32 | CST-6 | Thunderstorm Wind | 60 kts. EG | 0 | 0 | 0.00K | 0.00K |
| SCOTTSBORO | JACKSON CO. | AL | 04/20/2011 | 05:38 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| SKAGGS CORNER | DEKALB CO. | AL | 04/20/2011 | 05:39 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| FYFFE | DEKALB CO. | AL | 04/20/2011 | 05:39 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| BEATY XRDS | DEKALB CO. | AL | 04/20/2011 | 05:45 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| BEATY XRDS | DEKALB CO. | AL | 04/20/2011 | 05:45 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| ROCKWOOD | FRANKLIN CO. | AL | 04/20/2011 | 20:20 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| SPRING VLY | COLBERT CO. | AL | 04/20/2011 | 20:25 | CST-6 | Thunderstorm Wind | 40 kts. EG | 0 | 0 | 5.00K | 0.00K |
| CULLMAN | CULLMAN CO. | AL | 04/20/2011 | 22:05 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| WALTER | CULLMAN CO. | AL | 04/20/2011 | 22:10 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| WELTI | CULLMAN CO. | AL | 04/20/2011 | 22:10 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| HANCEVILLE | CULLMAN CO. | AL | 04/20/2011 | 22:15 | CST-6 | Thunderstorm Wind | 43 kts. EG | 0 | 0 | 0.50K | 0.00K |
| PLEASANT RIDGE | FRANKLIN CO. | AL | 04/20/2011 | 22:30 | CST-6 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| CULLMAN | CULLMAN CO. | AL | 04/20/2011 | 22:34 | CST-6 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| ZIP CITY | LAUDERDALE CO. | AL | 04/20/2011 | 22:45 | CST-6 | Lightning | 0 | 0 | 1.00K | 0.00K | |
| GUNTERSVILLE MUNI AR | MARSHALL CO. | AL | 04/20/2011 | 23:14 | CST-6 | Thunderstorm Wind | 40 kts. EG | 0 | 0 | 1.00K | 0.00K |
| ARAB | MARSHALL CO. | AL | 04/20/2011 | 23:14 | CST-6 | Thunderstorm Wind | 40 kts. EG | 0 | 0 | 1.00K | 0.00K |
| KILPATRICK | DEKALB CO. | AL | 04/20/2011 | 23:17 | CST-6 | Thunderstorm Wind | 43 kts. EG | 0 | 0 | 0.10K | 0.00K |
| BOAZ | MARSHALL CO. | AL | 04/20/2011 | 23:25 | CST-6 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| Totals: | 0 | 2 | 165.60K | 0.00K |
