FXUS62 KTBW 041730 AFDTBW Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL Issued by National Weather Service Lake Charles LA 130 PM EDT Mon May 4 2026 ...New AVIATION... .KEY MESSAGES... - Light showers and a stray storm today over SW Florida. - Warming trend the remainder of the week. && .UPDATE... Issued at 815 AM EDT Mon May 4 2026 Frontal boundary remains stalled across the Florida Straits with some deeper moisture across south Florida. High pressure the north has setup a low level northeast to east flow across the region bringing some drier air into the region, but there is expected to be enough moisture around when combined with the sea breeze to allow for a few showers to develop late this afternoon and evening. Best chances will be across southwest Florida, but some of the hi-res guidance does indicate a few showers as far north as the Tampa Bay area. For now will leave forecast as is and monitor for possible adjustments later to bring 20 to 30 PoPs further north. && .DISCUSSION... Issued at 1213 AM EDT Mon May 4 2026 A stationary frontal boundary across the southern Florida peninsula combined with a weak U/L disturbance continues to produce a few light showers mainly over southwest Florida. The U/L disturbance will exit east of the area today with high pressure building over the forecast area with decreasing cloudiness and drier air advecting over much of the area. However, can't rule out an isolated afternoon shower or storm over southwest Florida. The clearing skies will lead to warmer temperatures this afternoon than the past couple of days. Low level moisture will begin to recover on Tuesday as the surface ridge axis will be located north of the region creating easterly boundary layer flow off the Atlantic. An U/L ridge will build over the Florida peninsula mid week with increasing large scale subsidence causing temperatures to climb several degrees above normal. The subsidence should also inhibit afternoon convection creating flattened CU/partly cloudy skies and very warm days...and mostly clear nights. A frontal boundary will approach north Florida late in the week stalling across north Florida as it becomes parallel to the U/L flow. There will still be a chance of showers/thunderstorms developing over the northern nature coast and portions of west central Florida as moisture increases and the mid level cap begins to erode. The U/L ridge will gradually give way and be suppressed to the south over the weekend with a slightly better chance of an afternoon shower or thunderstorms. && .AVIATION... (18Z TAFS) Issued at 122 PM EDT Mon May 4 2026 A cumulus cloud deck stretches across the region. Conditions remain VFR but pop-up showers could lead to periods of MVFR conditions, with VCSH in the TAFs for PGD, LAL, FMY, and RSW. Winds decrease after sunset and shift to the northeast as the sea breeze weakens. After sunrise winds will be from the east around 5 to 10 knots. && .MARINE... Issued at 1213 AM EDT Mon May 4 2026 High pressure will hold over the waters through the week with generally benign conditions expected. Easterly flow today will shift to the south to southeast by mid week...then veering to the west and southwest ahead of a frontal boundary late in the week. && .FIRE WEATHER... Issued at 1213 AM EDT Mon May 4 2026 Drier air over the region will cause minimum afternoon relative humidity values to drop to near critical levels mainly across the nature coast today. However, winds are expected to remain below critical values. Moisture will begin to recover on Tuesday. && .PRELIMINARY POINT TEMPS/POPS... TPA MMM MMM MMM MMM / 30 0 0 MMM FMY MMM MMM MMM MMM / 40 0 0 MMM GIF MMM MMM MMM MMM / 40 40 80 MMM SRQ MMM MMM MMM MMM / 40 0 0 MMM BKV MMM MMM MMM MMM / 30 0 0 MMM SPG MMM MMM MMM MMM / 40 0 0 MMM && .TBW WATCHES/WARNINGS/ADVISORIES... FL...None. Gulf waters...None. && $$ DISCUSSION/AVIATION/MARINE/FIRE WEATHER...Oglesby/Slaughter DECISION SUPPORT...Close UPPER AIR/CLIMATE...Close