Area Forecast Discussion
Issued by NWS Tampa Bay Area, FL
Issued by NWS Tampa Bay Area, FL
285 FXUS62 KTBW 291811 AFDTBW Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 211 PM EDT Wed May 29 2024 ...New DISCUSSION, AVIATION, MARINE, FIRE WEATHER... .DISCUSSION... Issued at 208 PM EDT Wed May 29 2024 A moderately amplified upper level pattern continues over the CONUS with upper ridging extending northward through the central U.S. and broad upper troughing digging south through the mid-Atlantic states. This pattern becomes more amplified over the next couple of days as the trough moves into the western Atlantic and upper ridging moves into the Ohio River Valley and then gradually over the eastern seaboard over the weekend. On the surface, a weak cold front washes out and pushes southeastward as weak high pressure builds in over the southeast U.S. By Thursday, broad high pressure centered over the central Great Lakes ridges southward through the Ohio River Valley and into the eastern Gulf of Mexico. This will help usher in some slightly drier air with PWAT values ranging between 1.0-1.4 inches starting Thursday and continuing through the end of the week and into the weekend. By Saturday, the high moves over the mid-Atlantic states and will produce a wind shift to a more easterly direction through the weekend and into next week. With the slightly drier air over the region, you can expect only a 20-40 percent chance of showers and storms each day through the end of the week and into the weekend with the highest chances over the interior and southern Florida. Unfortunately the hot temperatures will continue through the forecast period with daytime highs topping out in the mid to upper 80`s along the coast and mid to upper 90`s over the interior. Overnight lows remain in the upper 60`s to mid 70`s. The drier air will bring the dew points down into the 60`s for most of the period allowing for slightly more comfortable humidity values. && .AVIATION... (18Z TAFS) Issued at 208 PM EDT Wed May 29 2024 VFR conditions with WNW winds around 8-13 knots with higher gusts expected this afternoon. Will hold off mentioning any weather at all terminals at this time as it appears most rain chances will remain over south Florida away from all the terminals. Winds become light and variable once again overnight. && .MARINE... Issued at 208 PM EDT Wed May 29 2024 Weak high pressure builds in over the southeast U.S. through the end of the week. This will produce north-northwest through north- northeast winds 15 knots or less and seas 2 feet or less. Rain chances remain on the low side (20-40 percent) through the period. By Saturday, the high pressure moves off the Carolina coastline and will bring a shift in winds to a more easterly direction around 15 knots through the weekend. This will also produce an uptick in the seas to around 3 feet on Sunday. && .FIRE WEATHER... Issued at 208 PM EDT Wed May 29 2024 High pressure dominates the weather with minimal rain chances (20-40 percent) through the period. A drier airmass will hold over the area through the period, with relative humidity dropping to critically low levels across some areas each afternoon. However, minimal 20 foot wind speeds are expected so we should not need any Red Flag Warnings. High dispersion indices are expected each of the next couple of afternoons. No other fire weather concerns expected. && .PRELIMINARY POINT TEMPS/POPS... TPA 76 95 76 93 / 0 20 10 30 FMY 75 96 75 95 / 10 40 20 40 GIF 72 97 72 95 / 0 20 10 40 SRQ 74 94 76 93 / 0 20 10 30 BKV 66 97 67 95 / 0 20 0 30 SPG 79 94 80 92 / 0 10 10 30 && Sea Breeze Thunderstorm Regime For Thursday: 2 Sea Breeze Thunderstorm Regime For Friday: 6 For additional information on sea breeze regimes, go to: https://www.weather.gov/tbw/ThunderstormClimatology && .TBW WATCHES/WARNINGS/ADVISORIES... FL...None. Gulf waters...None. && $$ DISCUSSION/AVIATION/MARINE/FIRE WEATHER...Wynn DECISION SUPPORT/UPPER AIR...Close