Up until Sunday, Iowa had mostly avoided the smoke plumes originating from the wild fires over northern Minnesota and Ontario, Canada. Unfortunately, the smoke arrived over eastern Iowa on Sunday. The featured map presents an accounting of the number of hours since 6 July that a plotted airport weather station has reported smoke within its METAR observation report. Smoke is encoded as "FU" within a METAR and that code originates from the French word Fumée, for those of you that are curious. The map shows the largest total number of hours stretching from northern Michigan to the east coast.