594 FXUS62 KTBW 271200 AFDTBW Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 800 AM EDT Sun Jul 27 2025 ...New UPDATE, AVIATION... .UPDATE... Issued at 800 AM EDT Sun Jul 27 2025 A quiet warm start to the day with mostly clear skies and early morning temperatures in the mid 70s inland to mid 80s along the coast. Will be another hot and humid day with limited rain chances. The Tampa Bay region has the best chances for a few showers and thunderstorms later this afternoon and evening as this area will have slightly more moisture when the sea breezes come together. Overall, the heat advisory area and remainder of forecast looks good with no changes needed. && .AVIATION... (12Z TAFS) Issued at 800 AM EDT Sun Jul 27 2025 VFR conditions should prevail through the TAF forecast period, but there is a low chance for a few showers and thunderstorms to develop late in the day/early evening around the Tampa Bay region. A similar scenario is expected late Monday afternoon and evening, but with slightly better moisture convection could occur at any of the TAF sites. Light winds early this morning will become north to northeast at 5 to 10 knots later this morning and afternoon, except shifting to northwest at around 10 knots at TPA, PIE, and SRQ as the sea breeze moves inland this afternoon, then becoming light later this evening and overnight. Gusty and erratic winds will be possible near any convection that does develop. && .SHORT TERM... (Today and tonight) Issued at 214 AM EDT Sun Jul 27 2025 Upper-level ridging remains centered over the SE CONUS. This is a slight retrograde from this time yesterday, impacting the placement of the surface high as well. The surface ridge has shifted slightly farther west to be situated over the N Gulf and is stretching northward into the FL panhandle, along with portions of Alabama and Mississippi. In response, today`s wind flow will be more of a N to NNE flow in the sfc-600 mb layer. This will help to keep a relatively hot and dry airmass in place once again today. However, mid-level water vapor imagery shows that some moisture has returned aloft. Additionally, the highest concentrations of dust are now off the FL west coast and moving west. Nevertheless, strong subsidence still favors a lot of sinking air. It will be difficult to get storms to form in response. A heat advisory remains in effect once again today, accounting for the primarily hot and dry weather that is expected. Today is expected to feel even hotter than yesterday, in particular because the day is already starting out much warmer. Many locations (as of approx 2AM) were still in the mid- 80s. Thus, it will get hotter quicker, leading to a high risk of impacts across the region today. It will be important to continue practicing good heat safety measures in response. There could be some relief in a few spots as isolated to scattered storms could develop around the Tampa Bay Area late in the day. Moisture and forcing will be maximized when multiple boundary collisions take place as the afternoon turns to the evening. This is very conditional, and will be contingent on if the updrafts can overcome the subsidence. Nevertheless, the potential is good enough to introduce a 30% chance in the Greater Tampa Bay area. Elsewhere, rain chances will again remain near 0% today. Any rain that does fall will be welcome, as this will help to cool things down. && .LONG TERM... (Monday through Saturday) Issued at 214 AM EDT Sun Jul 27 2025 There won`t be much change in this pattern for Monday. The ridge axis will continue retrograding west, but the sprawling nature means the surface ridge won`t shift much. Moisture will remain below climatological norms, limiting thunderstorm activity. Much like today, the best chances will reside along the west coast. Assuming there isn`t much rain today, tomorrow will again be hotter, pushing into Extreme Heat Warning territory in some areas potentially; but we`ll have to see how today plays out first. The pattern finally starts to break on Tuesday as deeper moisture returns to the area. With plenty of instability after multiple days of hot weather and little rainfall, it should be able to overcome the subsidence from the continental ridge axis (which will continue the westward retrograde). As the pattern begins to amplify across much of the CONUS by Wednesday, the influence of the continental ridge axis will wane, allowing the subtropical ridge to build back into the region. Thus, a more typical summertime pattern should return with scattered to perhaps numerous showers and thunderstorms returning as the weekend approaches, with "feels-like" temperatures returning back to normal in the 100 to 105 degree range. && .MARINE... Issued at 214 AM EDT Sun Jul 27 2025 Hot and dry weather continues into the work week as strong high pressure remains in control. There could be some isolated to scattered thunderstorms around the Tampa Bay area late in the day, pushing offshore into the evening. These storms will be capable of causing locally hazardous marine conditions if they do develop. A similar setup will take place each evening before greater rain chances return later in the work week. Outside of thunderstorms, winds remain below 15 knots with seas of around 2 feet or less. && .FIRE WEATHER... Issued at 214 AM EDT Sun Jul 27 2025 A very hot and dry weekend continues, with dewpoints dipping into the low 70s this afternoon. This will push RH values down near 50% for the afternoon. A couple storms will be possible around the Tampa Bay Area, however, late in the day. As low-level moisture increases next week, the RH values will start to rebound, and better rain chances will return to the forecast. With the wet season well underway, there are no major fire weather concerns despite the drier weather. && .PRELIMINARY POINT TEMPS/POPS... TPA 97 82 97 83 / 30 20 30 20 FMY 97 77 97 79 / 20 10 40 10 GIF 99 78 99 79 / 20 10 20 10 SRQ 97 77 96 79 / 30 20 30 30 BKV 97 76 98 76 / 20 10 30 20 SPG 94 82 94 82 / 30 20 30 30 && Sea Breeze Thunderstorm Regime For Sunday: 3 Sea Breeze Thunderstorm Regime For Monday: 3 For additional information on sea breeze regimes, go to: https://www.weather.gov/tbw/ThunderstormClimatology && .TBW WATCHES/WARNINGS/ADVISORIES... FL...Heat Advisory from noon today to 7 PM EDT this evening for Coastal Citrus-Coastal Hernando-Coastal Hillsborough- Coastal Levy-Coastal Manatee-Coastal Pasco-Coastal Sarasota- DeSoto-Hardee-Highlands-Inland Citrus-Inland Hernando- Inland Hillsborough-Inland Levy-Inland Manatee-Inland Pasco- Inland Sarasota-Pinellas-Polk-Sumter. Gulf waters...None. && $$ UPDATE/AVIATION...Close DISCUSSION/MARINE/FIRE WEATHER...Flannery DECISION SUPPORT/UPPER AIR...Shiveley