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Hydrologic OutlookUnknownColbert; Cullman; DeKalb; Franklin; Jackson; Lauderdale; Lawrence; Limestone; Madison; Marshall; Morgan...Flooding chances continue to increase for next week... A wet pattern will set up across the Tennessee Valley for much of the next week, with several rounds of heavy rainfall affecting Northern Alabama and portions of Southern Middle Tennessee beginning late Monday. Throughout the week ahead, a frontal boundary will stall across the area, though there is some uncertainty as to exactly where this feature will end up. The heaviest rainfall axis is expected to be along this stalled frontal boundary, where anywhere between 5 to 8 inches of rainfall are forecast. Isolated higher amounts are possible. While rainfall is literally forecasted for every day next week, the greatest potential for heavy rainfall and flooding will be from late Monday evening through at least midday Wednesday, if not lingering into Thursday. Given the wet ground conditions in place from recent rainfall, much of this expected 4-9" of rainfall will immediately convert to runoff. This will overwhelm the natural drainage processes, leading to flash flooding potentially at the onset of the heavy rain, and later in the week, widespread river flooding. Again, while there is still some uncertainty in exactly where the front will stall, nearly all of the river gages on the Tennessee River (and those on tributaries that feed into the Tennessee River) will likely reach flood stage at some point next week. The question will be how many will reach Moderate Stage (or higher). Lingering flooding on the Tennessee River will begin late next week, and will likely linger into the following week as well. Residents across Northern Alabama and Southern Middle Tennessee should continue to monitor this unfolding weather situation over the holiday weekend and stay tuned to further forecast updates from NWS Huntsville! For additional hydrologic information, visit our website at weather.gov/huntsville.2019-02-16T17:00:00-06:00