It’s been a month of breaking records here at Davis station. On Friday 9th of September we reached a minimum temperature of −39.7°C at 0253 Davis Base Time (DBT). This is the coldest September day on record beating the previous record of −38.3°C in 2008. Still a bit far from the lowest ever recorded temperature at Davis station of −41.8°C back in April 1998.
We did go outside to experience the temperature and cold is definitely an understatement to describing the experience. Only 4.9°C between our max and min temperatures for the day.
Then two days later on Sunday 11th of September, we recorded the lowest Station Level Pressure (SLP) ever recorded at Davis during a routine synoptic observation measuring just 919.9hPa (Hectopascal) or a Mean Sea Level Pressure (MSLP) of 925.5hPa. We dropped 54.4hPa in just 30 hours. As seen in our barograph chart which traces a line according to the air pressure. This occurred during our sixth blizzard for the 2016 season. Halley Station (UK) also recorded their lowest air pressure on record just a week earlier. It’s been discussed that this significant low pressure event may be a contributing factor to the retreating fast ice along the east Antarctica coast earlier than normal.