453 FXUS63 KPAH 021014 AFDPAH Area Forecast Discussion National Weather Service Paducah KY 514 AM CDT Mon Jun 2 2025 .KEY MESSAGES... - Hazy skies from the Canadian wildfire smoke will continue today, but improvement is likely on Tuesday. - Rain chances remain suppressed until Wednesday with daily showers and thunderstorms continuing into the weekend. - Temperatures in the mid to upper 80s trend more seasonable during the latter half of the week into next weekend. && .DISCUSSION... Issued at 119 AM CDT Mon Jun 2 2025 Sfc high pressure will push more east across the Mid Atlantic region with southerly flow causing a gradual increase in both the heat and humidity through the middle of the week. Patchy fog remains possible this morning in the wake of a stalled sfc front lifting out, mainly across portions of southeast Missouri and western Kentucky where dewpoints are in the mid to upper 60s. Hazy skies will also be probable again due to the Canadian wildfire smoke, but improvement is expected on Tuesday due to height rises aloft. As the pressure gradient tightens, winds turn more breezy with wind gusts between 20 to 25 mph possible Tuesday afternoon. Pcpn chances remain suppressed until Wednesday when a series of 500 mb shortwaves begin ejecting towards the FA from the west with daily chances of showers and thunderstorms into the weekend. With the exception of Wednesday night, NBM PoPs peak during the afternoon Thursday through Sunday as a cold front slowly sags south. Still not seeing a strong signal for a severe weather risk with meager shear and lapse rates, but the 00z GFS is hinting at some low end marginal potential perhaps on Friday with 1000-1500 J/kg of MLCAPE and 30-35 kts of sfc-6km shear. At the very least, mixing ratio values of 17 to 18 g/kg and PWATs near 2 inches may yield some heavy rainfall potential. Meanwhile, the CMC is more progressive with fropa on Friday that would favor stronger storms remaining south and west of the FA while the ECMWF has trended slower towards the GFS. Unsettled weather then lingers through the weekend. By the end of Sunday, the LREF indicates a 70 to 90% probability of exceeding 1 inch of total rainfall and 30 to 50% for exceeding 2 inches. Unseasonably warm temperatures in the mid to upper 80s are progged through Wednesday before trending more seasonable into the low to mid 80s during the latter half of the week into the weekend. Low temperatures will range from the mid 60s to low 70s. && .AVIATION /12Z TAFS THROUGH 12Z TUESDAY/... Issued at 514 AM CDT Mon Jun 2 2025 Ample dry conditions prevail across all terminals today with VFR conditions. Smoke from the Canadian wildfire will continue to cause hazy conditions in the high levels. Diurnal cu around 4 kft AGL will develop this afternoon, especially in the vicinity of the southern terminals. Winds will be south to southeast between 3-7 kts, falling below 5 kts after sunset. && .PAH WATCHES/WARNINGS/ADVISORIES... IL...None. MO...None. IN...None. KY...None. && $$ DISCUSSION...DW AVIATION...DW