Recent forecasts from multiple models indicate Ankara's overnight low on October 12 will likely fall in the 10–13°C range amid increasing cloud cover and scattered thunderstorms as a weather system ends the brief warm spell known locally as pastirma yazi. This transition is driven by southerly flow shifting to bring cooler maritime air and enhanced nocturnal radiative cooling under overcast skies, with official guidance from sources like the Turkish State Meteorological Service showing the primary catalyst as the incoming front. Trader emphasis on the 8°C-or-below outcome at 50% implied probability reflects uncertainty in exact timing of cooling and potential for stronger advection or clearer breaks allowing greater temperature drops, while higher-temperature bins capture model consensus around 12°C. Updated runs from GFS and regional ensembles expected in the next 24–48 hours could shift these market-implied odds as landfall timing and intensity refine.