Heavy rainfall on the order of 3-5 inches fell across portions of Cullman, Marshall and DeKalb Counties on the 29th into the 30th. Heavy showers and thunderstorms during the morning into the afternoon of the 30th caused excessive runoff and several reports of flooding.
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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.
Heavy rainfall on the order of 3-5 inches fell across portions of Cullman, Marshall and DeKalb Counties on the 29th into the 30th. Heavy showers and thunderstorms during the morning into the afternoon of the 30th caused excessive runoff and several reports of flooding.
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, 5:46 AM CST, 1 hour 3 minutes earlier.
Area Forecast Discussion...UPDATED National Weather Service Huntsville AL 646 AM CDT Fri Jun 30 2017 .UPDATE... For 12Z TAFS. && .NEAR TERM...(Today) Issued at 300 AM CDT Fri Jun 30 2017 An upper-level disturbance will lift northward from the Gulf of Mexico early this morning, generating another round of moderate to locally heavy showers and isolated thunderstorms. With PWATs still at/around 2 inches, it should not take much to get these showers going once the lift increases around 09-12z. The area most favored to receive these showers will be locations along and east of Interstate 65, especially along the mountains/plateau region of Northeast Alabama. To the west, coverage and QPF should be lessened somewhat by the presence of some mid-level dry air currently noted on water vapor imagery (which indicates a plume of drier air to the west across north Central Mississippi, also trying to nudge its way into far northwest Alabama). This round of morning showers/storm should last through the late morning, before tapering off by the early afternoon. Around 1/2 to perhaps 3/4 of an inch is not out of the question for areas across northeast Alabama -- while areas to the west may see amounts closer to 1/10 to 1/4 inch of QPF. As mentioned, this activity will diminish by the afternoon, save for some isolated to scattered convection that could re-develop late in the day. The clouds and precipitation should keep highs in check in the low to mid 80s once again. .SHORT TERM...(Tonight through Sunday) Issued at 300 AM CDT Fri Jun 30 2017 A brief lull in the convection is expected from late this afternoon through midnight as the initial shortwave trough shifts off to the northeast. However, another upper-trough draped across Plains pushes a cold front into the Mid-Mississippi and western Tennessee Valleys overnight. A line of strong thunderstorms should be moving into western Tennessee and northern Mississippi after 06z, and could approach our southern Middle Tennessee and Northwest Alabama counties by 12z Saturday. Latest guidance suggests limited instability to work with -- and the NAM-3km reflectively in particular showed a distinct weakening trend as a result. Still, this line/cluster(s) of storm (and any outflow boundaries it lays) should hang on as it moves into the southern Tennessee Valley -- and warrant the mention of chance to low-end likely PoPs, given the very moist air mass in place. With this boundary nearby, scattered showers and storms will continue Saturday night and Sunday. Given the uncertainties with where any outflow boundaries and other mesoscale features may lie, it is difficult to get too specific on any more favored locations for precipitation. Instability parameters will be notably higher on Saturday and Sunday, with ML-CAPE values at/around 1500-2000 J/kg. Thus with a boundary in place (and potentially these CAPE values), strong to marginally severe storms are possible both days. .LONG TERM...(Sunday night through Thursday) Issued at 300 AM CDT Fri Jun 30 2017 We are into our typical summer-time pattern with diurnally driven chances for showers and thunderstorms. A weak frontal boundary is forecast to be near the area Sunday night with a weak shortwave moving out of the plains and across the TN Valley. There is some disagreement in the models in how they want to evolve what could be a complex of thunderstorms that forms along the boundary to our west. The GFS/NAM solutions are on the more robust side with convective potential Sunday night into Monday, while the ECMWF ends all activity shortly after sunset. Think something closer to the ECMWF solution is more likely and adjusted PoPs in that regard. Should have scattered to numerous thunderstorms during the day Monday but with limited shear < 10kts, any storms that develop will be of the pulse variety. Damaging wind gusts and very heavy downpours could accompany any of the storms. Heading into the Fourth of July holiday, models move a stronger trough out of the Intermountain West and towards AR/MO/KY. Not much change is expected airmass wise between Monday into Tuesday and CAPE could increase to around 2,000 J/kg. The only real difference is the slightly better forcing associated with the trough that will be situated to our NW. So, a few stronger storms might be possible Tuesday. The other concern is that the hot and humid conditions will lead to Heat Index values in the mid to upper 90s! The trough moves off to the east Wed/Thu but as a ridge builds across the western US we will remain on the eastern periphery or the "ring of fire" as it were. So, expect continued thunderstorm chances mainly occurring each afternoon as we head into the latter half of the week/next weekend. && .AVIATION...(For the 12Z TAFS through 12Z Saturday morning) Issued at 640 AM CDT Fri Jun 30 2017 -RA/SHRA will continue to drift north and east in the vicinity and/or over each terminal this morning. The main impact will be the low MVFR to IFR ceilings that will prevail through midday. By early afternoon, some limited heating may allow for some scattered VCTS through 22z, as ceilings lift to low VFR levels. After a brief period of dry/quiet weather, MVFR fog will develop at each terminal after midnight due to the moist boundary layer conditions. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...NONE. TN...NONE. && NEAR TERM...AMP.24 SHORT TERM...AMP.24 LONG TERM...Stumpf AVIATION...AMP.24 For more information please visit our website at weather.gov/huntsville.
Hazardous Weather Outlook National Weather Service Huntsville AL 354 AM CDT Fri Jun 30 2017 ALZ001>010-016-TNZ076-096-097-010000- Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Madison-Morgan- Marshall-Jackson-De Kalb-Cullman-Moore-Lincoln-Franklin TN- 354 AM CDT Fri Jun 30 2017 This Hazardous Weather Outlook is for north Alabama and portions of southern middle Tennessee. .DAY ONE...Today and Tonight... Scattered to numerous thunderstorms are possible today as a disturbance moves north out of southern Alabama and across the area. The highest coverage of storms is forecast to occur mainly east of Interstate 65 and be highest during the morning to early afternoon hours. Thunderstorm chances lower after sunset. Gusty winds, frequent lightning, and locally heavy rainfall will be the highest threats. .DAYS TWO THROUGH SEVEN...Saturday through Thursday... Scattered to numerous thunderstorms are possible again on Saturday as a front approaches the area. A few strong to marginally severe storms are possible with gusty winds, frequent lightning, and locally heavy downpours will be the highest threats. Isolated to scattered thunderstorms are also possible Sunday through Thursday with the greatest coverage occurring during the afternoon hours. Gusty winds and locally heavy rain continue to be the main threats. .SPOTTER CALL TO ACTION STATEMENT... Activation of storm spotters and emergency management personnel is not anticipated at this time.
The national radar mosaic for the moment the first event began.
6 flood. Local standard time, as filed.
Greater than 2 inches of rain in Boaz resulted in significant ponding of water in yards along Highway 168. Report relayed via Social Media.
Flooding on Kilpatrick Road in Albertville. Depth of water unknown. Video/report relayed via Social Media.
Puddles in yard of 1401 Edwards Street in Hanceville congealing into one, causing minor nuisance flooding. EMA reporting house may have sandbags placed around it if conditions worsen. Picture relayed via EMA.
Albertville Police Dept reports that numerous streets have minor flooding. Water depth is 3 inches or less and more of a nuisance than anything else. Report relayed via Social Media.
Albertville Police Dept is now barracading George Wallace Drive. Water depth is 3 to 4 inches and due to poor drainage. Nuisance flooding reported elsewhere in Albertville. Report relayed via Social Media.
Minor yard flooding of a home located near the Stop to Save Market in Rainsville. Depth of water unknown. Report relayed via Social Media.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Alabama in 2017Every state in 2017This day in weather historyWarnings in Alabama, June 2017
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: 700980, 700984, 700985, 700986, 700988, 700989.