Tropical Depression Two Forecast Discussion
|
U.S. Watch/Warning Local Products Español: Aviso Publico Discusión |
000 WTNT42 KNHC 192044 TCDAT2 Tropical Depression Two Discussion Number 2 NWS National Hurricane Center Miami FL AL022026 400 PM CDT Sun Jul 19 2026 The depression has generally changed little over the past several hours. The circulation remains well organized, and deep convection is gradually increasing near the center and in bands. An ASCAT pass from around 15Z showed peak winds of around 25 kt, and data from the Air Force Reserve reconnaissance aircraft show winds of about that same value. Therefore, the initial intensity is held at 25 kt for this advisory. The depression remains rather large and somewhat diffuse, with the associated shower activity covering much of the eastern Gulf. The system has barely moved today. In fact, it has drifted southeastward over the past few hours. This slow motion is due to very weak steering currents, with the depression currently caught between a ridge over the western Atlantic, another ridge over the south-central and southwestern U.S., and a trough over the northeast U.S. Most of the models show the cyclone drifting northwestward over the next couple of days, and its outer bands could bring tropical storm conditions to portions of the Florida Panhandle beginning late Monday. A turn to the west or west-northwest is likely on Tuesday as the ridge over the U.S. builds eastward and becomes the primary steering feature. That motion should take the system along or just offshore of the northern Gulf coast during the middle and latter portions of the week. The NHC track forecast has been shifted a bit to the south, in best agreement with the usually best-performing aids HCCA, TVCN, and GDMI. The depression is expected to only slowly strengthen, especially in the short term, due to its sprawling structure, nearby dry air, and northeasterly vertical wind shear. Nonetheless, the system is expected to become a tropical storm on Monday when it is offshore of the Florida Panhandle. The shear could briefly let up during the middle of the week, and if the system is still over water at that time, it could strengthen some more. There remains a large spread in the model solutions that range from the system remaining a tropical depression to even becoming a hurricane. Given the mixed environmental conditions and some expected land interaction, the NHC intensity forecast lies between those solutions, but leans closer to the upper end of the guidance. However, it is worth emphasizing that the intensity forecast is of low confidence given the uncertainty of how much land the system will interact with. Key Messages: 1. The depression is expected to gradually strengthen and could bring tropical storm conditions to portions of the Florida Panhandle beginning late Monday, where a Tropical Storm Watch is in effect, 2. Interests in Alabama, Mississippi, Louisiana, and Texas should monitor the progress of this system, as watches could be required for portions of that area over the next day or two. 3. Areas of flash flooding will be possible through Thursday along the eastern and central Gulf Coast from western Florida to southern portions of Alabama, Mississippi, and Louisiana. FORECAST POSITIONS AND MAX WINDS INIT 19/2100Z 27.5N 85.0W 25 KT 30 MPH 12H 20/0600Z 27.9N 85.2W 30 KT 35 MPH 24H 20/1800Z 28.2N 85.5W 35 KT 40 MPH 36H 21/0600Z 28.5N 86.0W 40 KT 45 MPH 48H 21/1800Z 28.9N 86.7W 40 KT 45 MPH 60H 22/0600Z 29.2N 87.5W 45 KT 50 MPH 72H 22/1800Z 29.4N 88.8W 50 KT 60 MPH 96H 23/1800Z 29.2N 91.9W 50 KT 60 MPH 120H 24/1800Z 29.3N 96.5W 40 KT 45 MPH...INLAND $$ Forecaster Cangialosi