Multiple clusters of thunderstorms moved east through north Alabama during the morning hours. The storms knocked down a few trees in northwest Alabama in Lauderdale, Franklin and Morgan Counties.
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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.
Multiple clusters of thunderstorms moved east through north Alabama during the morning hours. The storms knocked down a few trees in northwest Alabama in Lauderdale, Franklin and Morgan Counties. Flash flooding was reported in several locations as well.
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 Jul 17, 2:40 AM CST, 1 hour 40 minutes earlier.
Area Forecast Discussion National Weather Service Huntsville AL 340 AM CDT Wed Jul 17 2019 .NEAR TERM...(Today) Issued at 340 AM CDT Wed Jul 17 2019 One last day of feeling the effects of former TC Barry, now seen as a fairly amplified 500mb trough with an axis centering over the TN Valley region this morning. This in conjunction with several remnant outflow boundaries has kept shower and storm activity going overnight in northern MS and northwest AL. With that said, today will be off to a soggy start as isolated to scattered showers and thunderstorms continue spreading east in a very moist airmass over the Valley. Although some uncertainty remains as to just how organized these storms will become, recent radar trends and CAM guidance suggests that coverage will continue to increase through sunrise. As mentioned in the previous discussion, forecast soundings still show sufficient bulk shear between 20-30 kts and MUCAPE values between 1000-2000 J/kg during the morning hours, especially over NW AL. With that said, would not be surprised to see these storms become more linear over the next several hours, growing as a broken line or a small MCS. Strong gusty winds up to 40-50 mph will be possible, especially along any bowing segments. Flash flooding will also be a concern during the morning hours with PW values ranging from 2-2.25 in. Flash flooding concerns will be maximized over northwest AL, where an additional 1-1.5 inches of rainfall is expected during the morning hours. Expect this complex of storms to weaken in nature as it tracks east over the Valley late this morning, but additional thunderstorm development will be possible this afternoon along any resulting cold pool/outflow boundaries. Given any breaks in cloud cover that would allow for further destabilization, could not rule out a strong storm or two this afternoon. Otherwise, highs will be in the mid to upper 80s with southwest winds. .SHORT TERM...(Tonight through Friday) Issued at 340 AM CDT Wed Jul 17 2019 Expect most thunderstorm activity to die down by this evening as the trough axis center moves east of the Valley. Will mention that some CAM guidance has been hinting at a cluster of showers/storms trailing down into the Valley just after sunset, but this seems to have little support overall. Will keep low chance PoPs in overnight, with low temperatures in the low to middle 70s. The trough axis will slide east of the Valley on Thursday and an upper ridging pattern will begin to build over the Southeast. This will result in a noticeable warming trend, with high temperatures climbing back into the low to middle 90s Thursday and Friday. With dew points ranging from the low to middle 70s, it will certainly feel uncomfortable with heat indices climbing into the 100-105F range both Thursday and Friday. Overnight lows will remain in the low to middle 70s, providing very little in the way of relief. Will keep low chance PoPs in during daytime heating hours. .LONG TERM...(Friday night through Tuesday) Issued at 340 AM CDT Wed Jul 17 2019 For the beginning of the extended period, broad upper ridging will be in place from northern Mexico and the Desert SW, eastward across the southern states and much of the Atlantic Basin south of 30N. North of this ridge, the northern stream continued in a west to east manner roughly along the United States/Canadian border. An upper low moving across the British Columbia coast will help induce the formation of another upper low east of the Hudson Bay. This will produce a more amplified upper pattern towards the middle of next week, with troughing extending southward from east/central Canada to the Ohio Valley. Upper ridge maxima heights during this period will build westward from the Tennessee/Ohio Valley to the 4-Corners by the start of next week. For the region - the forecast into early next week will feature very warm to hot conditions. After a muggy night Friday night with lows only in the low/mid 70s, highs on Saturday will rise into the lower 90s. This warmth coupled with dewpoints in the mid 70s will produced heat indices in the upper 90s to 106 degree range. Similar conditions are forecast for Sat night with lows in the mid 70s. A tad cooler on Sunday with highs around 90, and heat index values in the mid/upper 90s. A savings grace from even hotter temperatures, is higher amounts of moisture to create more clouds than sun, that will help temper high temperature potential. Along with the clouds (moisture), daytime heating will produce mainly afternoon to early evening showers and thunderstorms. The longer range models as noted above were developing troughing across the eastern CONUS. They also noted a frontal boundary moving southward towards the region. Unfortunately inter-model agreement is not very high from the beginning of the next work week onward, with significant differences in the deterministic model output. From the 500mb level to the surface, the models were hinting at better rain chances for the start of the new work week. Followed this line of thinking, with 50 percent shower/t-storm chances for Monday/Monday night. More clouds and the greater rain chances will bring cooler high/low temperatures for the first part of next week. High temperatures around 90 on Monday, should cool into the mid/upper 80s for Tuesday and Wednesday. && .AVIATION...(For the 06Z TAFS through 06Z Wednesday night) Issued at 1238 AM CDT Wed Jul 17 2019 No changes from previous aviation forecast reasoning. VFR conds are currently observed, with a SW flow arnd 5 knots which should inhibit development of light BR/FG at the terminals. Meanwhile, convection will continue to redevelop to our west, as an approaching mid-level trough (remnants of Barry) begins to strengthen lift in the vicinity of several lingering outflow boundaries. This activity may evolve into a broader complex of convection as it tracks eastward thru our region, and we have introduced VCTS at MSL/06Z and HSV/08Z, along with TEMPO groups for TSRA and MVFR cig/vsby reductions in the 08-14Z timeframe. Although threats from this complex of convection will likely end by 14-16Z, additional development of SHRA/TSRA may occur along its residual outflow boundary late in the TAF period, and we have included VCTS for this beginning at 20Z. At this point, aftn convection has been removed from the forecast after 00-01Z. However, this will need to be monitored closely as an additional storm cluster may drop southeastward into the region late Wednesday night. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...NONE. TN...NONE. && NEAR TERM...25 SHORT TERM...25 LONG TERM...RSB AVIATION...70/DD For more information please visit our website at weather.gov/huntsville.
Hazardous Weather Outlook National Weather Service Huntsville AL 417 AM CDT Wed Jul 17 2019 ALZ001>010-016-TNZ076-096-097-180000- Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Madison-Morgan- Marshall-Jackson-DeKalb-Cullman-Moore-Lincoln-Franklin TN- 417 AM CDT Wed Jul 17 2019 This Hazardous Weather Outlook is for north Alabama and portions of southern middle Tennessee. .DAY ONE...Today and Tonight... Numerous thunderstorms are forecast to affect the Tennessee Valley today. Rainfall totals of around 2 inches over northwest Alabama could result in flash flooding or areal flooding, especially those areas that impacted by several rounds of heavy rainfall. Wind gusts to 50 mph and frequent lightning is also possible with the stronger storms. Thunderstorm chances will diminish from west to east this evening, as an upper level system exits the region. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday... Heat concerns return to the area on Thursday, continuing through Saturday. Daytime high temperatures will peak into the mid 90s, with Heat Index values from the upper 90s to excess of 105 degrees. Residual moisture along with very warm to hot temperatures, will result in mainly afternoon and early evening thunderstorms each day. A frontal boundary approaching the region early next week, will bring somewhat higher chances for thunderstorms next Monday through Tuesday. .SPOTTER CALL TO ACTION STATEMENT... Activation of storm spotters and emergency management personnel is not anticipated at this time.
The Columbus AFB radar (KGWX), 126 km away, was scanning. The volume nearest the first event began at 10:22 UTC.
8 thunderstorm wind. Local standard time, as filed.
A tree was knocked down on Whites Lake Bridge on CR 7. Time estimated from radar.
A tree was knocked down at CR 94 at CR 344.
A tree was knocked down at 9010 Highway 17. Time estimated by radar.
A tree was knocked down at CR 94 and CR 344.
A tree was knocked down and a power pole broke in half at CR 47 and CR 94.
A tree was knocked down at CR 27 near CR 30.
A few trees were knocked down in the Scott Bridge area. Time estimated from radar.
Trees were knocked down near the railroad tracks and Finley Island Road in Decatur.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Alabama in 2019Every state in 2019This day in weather historyWarnings in Alabama, July 2019
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: 842154, 842155, 842152, 842156, 842157, 842159, 842160, 842161.