Q1: Why do these warm sunny days still feel chilly in the morning?
A1: The current weather pattern is driven by dry, low-humidity air under a high pressure ridge. Without cloud cover or water vapor to act as an insulating blanket, heat escapes rapidly into the upper atmosphere after sunset, causing temperatures to tumble 25 to 35 degrees between late afternoon and sunrise.
Q2: Are these October warm spells breaking all-time records?
A2: Most observation stations are not setting all-time monthly maximums, which were typically set during severe heat episodes in late September or early October in prior decades. However, many stations are challenging daily records and setting benchmarks for the longest consecutive run of days with temperatures at least 8 degrees above seasonal averages.
Q3: How soon will the incoming cold front sweep through the country?
A3: Pacific weather stations report the leading front entering the Northwest first, dropping temperatures across the Rockies and Northern Plains within 48 to 72 hours before sweeping into the Midwest and East Coast over the following several days.
