Polar Vortex (Japan)

300 hPa Geopotential Height Map with Japan at the Center

lated Product (Amazon)

Room Thermometer for Home Antonki 2 Pack, Indoor, Temperature and Humidity Sensor

Antonki 2 Pack Room Thermometer for Home, Indoor Hygrometer Humidity Meter Gauge, Digital Temperature and Humidity Sensor Monitor for House, Terrarium, Incubator, Greenhouse – Battery Included