Related by context. Frequent words. (Click for all words.) 57 ash plumes 52 ash spewing 50 volcanic plume 50 spewed ash 49 Volcanic eruptions 47 ash spewed 46 volcano erupting 46 volcanic ash clouds 45 Grimsvotn 45 volcanic eruptions 45 Eruptions 44 ash plume 43 Snow flurries 43 spewing ash 43 volcano eruptions 43 active volcanos 43 congested airspace 43 northeasterly direction 43 ash clouds 43 volcanic ash 43 Alaska Mount Redoubt 43 Iceland Eyjafjallajokull volcano 42 volcanic eruption 42 eruptions 42 spewing lava 42 Kilauea Volcano 42 cumulus clouds 42 Grimsvotn volcano 41 flight cancellations 41 Wind shear 41 eruption 41 volcano erupts 41 Volcanic ash 41 heaviest precipitation 41 volcanic activity 41 Eyjafjallajökull 41 waterspouts 40 volcano eruption 40 Flights 39 Thick fog 39 outbound flights 39 Mount Redoubt 39 pyroclastic flows 39 plume 39 volcanic 39 updrafts 39 cirrus clouds 39 Eyjafjallajokull volcano 39 volcanic gases 39 Iceland volcano 39 plumes 39 jetstream 39 flight cancelations 39 thunderheads 39 ash cloud 39 Geminids 39 meteor showers 39 Snowfalls 38 flights 38 Volcanic Ash 38 Iceland volcanic ash 38 lavas 37 jet stream 37 volcanos 37 smoke plumes 37 Iceland volcanic eruption 37 volcanoes 37 mountain ranges 37 spawn tornadoes 37 Iceland Eyjafjallajokul volcano 37 Whiteout conditions 37 lightning flashes 37 lava flows 37 rain squalls 37 Tsunamis 37 meteoroids 37 rebook passengers 37 Pacaya volcano 37 Mount Sinabung 37 southeastward 36 downdrafts 36 stormy weather 36 Eyjafjallajokull 36 Dense fog 36 ash 36 thawing permafrost 36 northwestward 36 Perseids 36 north westerly 36 aurora 36 westerly winds 36 Leonids 36 volcano 36 flying 36 overflying 36 subduction zones 36 northeasterly winds 36 Tsunami warnings 36 ocean swells 36 freezing fog 36 volcanic earthquakes