Figure 6From: Improvements of volcanic ash fall forecasts issued by the Japan Meteorological Agency Flow diagram showing timing of issue and contents of the current VAFF and the proposed new VAFF. *1 JMA provides wind forecasts above volcanoes that have high likelihood of eruption. *2 JMA provides data such as eruption time, plume height, and direction of plume extension about 5 minutes after onset of an eruption.Back to article page