A complex of strong to severe thunderstorms dropped south-southeast from middle and western middle Tennessee into northwest Alabama during the late evening of June 30th, and lasting into the early morning hours of July 1st. Several reports of trees and power lines being knocked down were received, especially in Lauderdale and Colbert Counties.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS HUN wrote it up.
A complex of strong to severe thunderstorms dropped south-southeast from middle and western middle Tennessee into northwest Alabama during the late evening of June 30th, and lasting into the early morning hours of July 1st. Several reports of trees and power lines being knocked down were received, especially in Lauderdale and Colbert Counties.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Huntsville, AL wrote its last area forecast discussion before the first event at Jun 30, 8:00 PM CST, 1 hour 49 minutes earlier.
Area Forecast Discussion National Weather Service Huntsville AL 900 PM CDT Tue Jun 30 2020 .NEAR TERM...(Tonight) Issued at 900 PM CDT Tue Jun 30 2020 A complex of storms has all but exited the forecast area, with lingering light rain over portions of northern Alabama. For at least the next couple of hours, expect mild conditions across the TN Valley, with temperatures generally in the upper 60s to lower 70s. Another line of showers and thunderstorms was currently moving through northwest Tennessee and, based on current radar trends, should begin to enter the northern portion of the forecast area by midnight. As is typical in these types of setups, hires guidance is fairly inconsistent and has not initialized very well leaving very little confidence in those solutions. With that said, looking at the atmosphere over the area, instability has lessened with the passage of the previous storms and with no heating expected, the additional showers/storms should weaken some prior to reaching the area. However, we still have roughly 1500 to 2000 j/kg of CAPE in place, which will likely persist through the next few hours. So the storms should at least hold together as they make their way through southern middle Tennessee and northern Alabama between midnight and around 3-4 am. Can't rule out a strong storm or two, with gusty winds being the main threat. These storms will likely push south of the area, or completely dissipate, during the predawn hours leaving dry conditions in place around sunrise. Temperatures are tricky as they will depend on any additional activity moving through. But for the most part, expect lows to generally remain in the upper 60s to lower 70s. .SHORT TERM...(Wednesday through Thursday) Issued at 256 PM CDT Tue Jun 30 2020 Another day of active weather is expected on Wednesday as the weak boundary pushes into North Alabama. There remains some question as to whether there will be widespread AM convection along the boundary, especially in areas east of I-65. Have a greater confidence that at least some convection will be ongoing and have kept likely PoPs in place for this reason. Regardless, expect a similar set up to today, with even greater coverage of strong to marginally severe thunderstorms in the afternoon and evening hours, once the atmosphere destabilizes and convective temps are realized. Additionally, models are hinting at an MCS developing across the Ozarks/Mid-Mississippi Valley by early afternoon, potentially riding the boundary into the Tennessee Valley by the late afternoon into the early evening. Confidence is still low on whether this will materialize, but we could see a second wave of strong/severe storms into the evening should this come together. Expect coverage of showers and storms will diminish overnight as the boundary sags a little further to the south and west by Thursday morning. Still think that we'll see some decent coverage of diurnal convection, especially during the afternoon/evening, but the threat for severe storms will be lower as the better forcing will be displaced south of the area. .LONG TERM...(Thursday night through Monday) Issued at 256 PM CDT Tue Jun 30 2020 The weak front will drop south into the Gulf Coast region for Friday, as a weak area of high pressure at the surface develops. this should result in a mainly dry day on Friday, with only a few isolated storms expected. Expect a gradual uptick in convection for the Fourth of July holiday weekend into early next week as a surface low develops across South Alabama/Georgia and drifts back to the north into the Tennessee Valley. The end result will be scattered to numerous diurnal convection each day and continued below normal temperatures due to the cloud cover and precipitation chances, with highs in the mid to upper 80s each day. && .AVIATION...(For the 00Z TAFS through 00Z Wednesday evening) Issued at 636 PM CDT Tue Jun 30 2020 Ongoing showers and thunderstorms impacting the KMSL and KHSV terminals should move south of the terminals within the next couple of hours. Prior to the storms exiting, heavy rainfall will lower visibilities and create some ponding of water on runways. Additionally, winds within the storms will be variable and gust up to 20 kts. As the storms drop south by 01Z, conditions will become VFR and this trend should continue through the overnight hours with partly cloudy skies and light/variable winds. Another round of showers and thunderstorms are expected again on Wednesday, however confidence on exact timing is low at this time and will maintain the PROB30 from 12Z to 18Z. Beyond 18Z forecast confidence drops even further. Outside of any thunderstorms, winds will increase from the southwest to around 7 kts after sunrise. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...NONE. TN...NONE. && NEAR TERM...73 SHORT TERM...AMP.24 LONG TERM...AMP.24 AVIATION...73 For more information please visit our website at weather.gov/huntsville.
Hazardous Weather Outlook National Weather Service Huntsville AL 901 PM CDT Tue Jun 30 2020 ALZ001>010-016-TNZ076-096-097-011715- Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Madison-Morgan- Marshall-Jackson-DeKalb-Cullman-Moore-Lincoln-Franklin TN- 901 PM CDT Tue Jun 30 2020 This Hazardous Weather Outlook is for north Alabama and portions of southern middle Tennessee. .DAY ONE...Tonight... A line of showers and thunderstorms is expected to move through the area late tonight and into the early morning hours. A few of the storms may become strong, producing gusty winds. .DAYS TWO THROUGH SEVEN...Wednesday through Monday... Scattered to numerous thunderstorms are possible on Wednesday and Thursday. Some storms on Wednesday could become strong to marginally severe, with gusty outflow winds, hail, and torrential rainfall. Isolated to scattered thunderstorms are forecast on Friday and Independence Day. Scattered to numerous storms are possible on Sunday and Monday. .SPOTTER INFORMATION STATEMENT... Activation of storm spotters and emergency management personnel is not anticipated at this time.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
725 PM CDT TUE JUN 30 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0636 PM TSTM WND DMG 1 N GRANT 34.53N 86.25W
06/30/2020 MARSHALL AL BROADCAST MEDIA
TELEPHONE POLES DOWN.
&&
25PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
749 PM CDT TUE JUN 30 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0713 PM TSTM WND DMG 2 N PAINT ROCK 34.68N 86.33W
06/30/2020 JACKSON AL FIRE DEPT/RESCUE
TREES DOWN AND LOW HANGING POWER LINES ALONG
COUNTY ROAD 1.
&&
25Special Weather Statement National Weather Service Huntsville AL 749 PM CDT Tue Jun 30 2020 ALZ004-010130- Lawrence AL- 749 PM CDT Tue Jun 30 2020 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN LAWRENCE COUNTY UNTIL 830 PM CDT... At 748 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Moulton to Moreland to Lynn. Movement was east at 10 mph. Pea size hail and wind gusts of 50 to 55 mph will be possible with these storms. Locations impacted include... Moulton, Speake, Bankhead National Forest, Wren and Landersville. PRECAUTIONARY/PREPAREDNESS ACTIONS... Strong gusty winds will be capable of knocking down small tree limbs along with other small unsecured items. Seek safe shelter until this line of storms has passed. Very heavy rainfall is also occurring with these storms, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with these storms. Lightning can strike several miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3430 8741 3452 8743 3452 8711 3430 8711 TIME...MOT...LOC 0048Z 274DEG 9KT 3446 8734 3425 8733 3404 8754 70/DD
Special Weather Statement
National Weather Service Huntsville AL
815 PM CDT Tue Jun 30 2020
ALZ016-010145-
Cullman AL-
815 PM CDT Tue Jun 30 2020
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL CULLMAN COUNTY UNTIL 845
PM CDT...
At 815 PM CDT, Doppler radar was tracking a strong thunderstorm over
Nesmith, or near Arley, moving east at 55 mph.
Pea size hail and wind gusts of 50 to 55 mph will be possible with
this storm.
Locations impacted include...
Cullman, Hanceville, Good Hope, Holly Pond, Dodge City, Baldwin,
Vinemont, West Point, Garden City and Phelan.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Strong gusty winds will be capable of knocking down small tree limbs
along with other small unsecured items. Seek safe shelter until this
storm has passed.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike several miles away from a thunderstorm. Seek a
safe shelter inside a building or vehicle.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 3404 8711 3425 8711 3422 8657 3412 8660
3412 8663 3409 8666 3408 8669 3409 8669
3408 8670 3405 8668 3406 8671 3403 8670
3403 8672 3398 8676
TIME...MOT...LOC 0115Z 280DEG 49KT 3416 8714
70/DDSpecial Weather Statement
National Weather Service Huntsville AL
835 PM CDT Tue Jun 30 2020
ALZ016-010215-
Cullman AL-
835 PM CDT Tue Jun 30 2020
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN CULLMAN COUNTY UNTIL
915 PM CDT...
At 833 PM CDT, Doppler radar was tracking a cluster of strong
thunderstorms centered over Smith Lake, or 8 miles southeast of
Arley, and moving east at 30 mph.
Pea size hail and wind gusts of 50 to 55 mph will be possible with
this cluster of storms.
Locations impacted include...
Dodge City, Garden City, Colony, Wilburn, Bremen, Arkadelphia, Black
Bottom and Smith Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Strong gusty winds will be capable of knocking down small tree limbs
along with other small unsecured items. Seek safe shelter until
these storms have passed.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike several miles away from a thunderstorm. Seek a
safe shelter inside a building or vehicle.
If on or near Smith Lake, get out of the water and move indoors or
inside a vehicle. Remember, lightning can strike out to 10 miles
from the parent thunderstorm. If you can hear thunder, you are close
enough to be struck by lightning. Move to safe shelter now! Do not
be caught on the water in a thunderstorm.
&&
LAT...LON 3389 8701 3390 8710 3392 8708 3399 8715
3399 8711 3407 8711 3402 8672 3395 8679
3396 8682 3394 8682 3395 8684 3393 8686
3394 8688 3392 8689 3391 8692 3387 8692
3386 8696 3386 8699
TIME...MOT...LOC 0133Z 283DEG 24KT 3398 8716
70/DDPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
938 PM CDT TUE JUN 30 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0541 PM TSTM WND DMG 2 N MADISON 34.73N 86.75W
06/30/2020 MADISON AL OTHER FEDERAL
LARGE TREE BRANCH WAS BLOWN DOWN ACROSS A
FENCE AT THIS LOCATION BY
THUNDERSTORM-RELATED WINDS. THE BRANCH WAS
1.5 FEET WIDE AND 20 FEET LONG.
&&
DGDThe Columbus AFB radar (KGWX), 112 km away, was scanning. The volume nearest the first event began at 03:49 UTC.
29 thunderstorm wind. Local standard time, as filed.
A tree was knocked down at 14521 Riverton Rose Trail.
A tree was knocked down at Lane Springs Road at Riverton Rose Trail.
A tree was knocked down at Highway 72 and Allsboro Road.
A tree was knocked down at 6th Street and Johnson Drive.
A tree was knocked down at North Montgomery Avenue at East 9th Street.
A tree was knocked down at North Main Street at East Hogue Street.
A tree was knocked down onto the road at 170 Fox Trap Road.
A tree was knocked down at 6th Street and Johnson Drive.
A tree was knocked down at 4160 Lagrange Road.
A tree was knocked down on CR 259.
Tree limbs were knocked down on CR 85.
A tree was knocked down at 700 CR 261.
A tree was knocked down across the road at U.S. Highway 43 at CR 8.
A power line was knocked down in front of Curtis' Restaurant on Highway 43.
A tree was knocked down at CR 30 by the church.
A tree was knocked down on CR 144 east of CR 47.
Thunderstorm winds caused power lines to hang low on Highway 43 at Rogers High School.
Thunderstorm winds caused a low hanging power line.
Thunderstorm winds caused a low hanging power line.
A tree was knocked down at 505 CR 372 in Killen.
A tree was knocked down on CR 63 at Ridge Road.
A tree was knocked down on CR 450.
A tree was knocked down at 500 CR 483.
A tree and power lines were knocked down on Livingston Street at the dead end.
A tree was knocked down on CR 470.
A power line was knocked down at 11285 Highway 64.
A tree was knocked down across the road on CR 584.
A tree was knocked down at 101 CR 86.
A tree was knocked down on Highway 72 near the Elk River Bridge.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Alabama in 2020Every state in 2020This day in weather historyWarnings in Alabama, June 2020
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 904771, 904769, 904768, 904766, 904765, 904770, 904764, 904767, 904763, 904503, 904483, 904490, 904485, 904486, 904497, 904487, 904488, 904495, 904484, 904494, 904501, 904489, 904496, 904498, 904504, 904491, 904500, 904492, 904493.