Related by context. Frequent words. (Click for all words.) 69 volcanic ash 60 volcanic ash cloud 59 Iceland volcano 59 ash cloud 59 Heavy snowfall 55 ash 54 Heavy snow 54 Wintry weather 53 Grimsvotn volcano 52 Icelandic volcano 52 Blowing snow 51 Dense fog 51 volcano eruption 50 ash plume 50 Severe weather 50 Bitter cold 50 ash clouds 49 Heavy fog 48 volcanic eruption 47 Eyjafjallajokull volcano 47 Freezing rain 47 volcano erupts 46 Wet weather 46 Melting snow 46 Snowstorm 46 Heavy rain 45 Stormy weather 45 Torrential rain 45 Thick smoke 45 volcanic eruptions 44 volcano 43 Freezing temperatures 43 volcanic 43 Heavy rainfall 43 flight cancellations 43 airspace closures 42 Strong winds 42 freezing fog 42 Indonesian volcano 42 Inclement weather 42 Winds gusting 42 Airspace 42 Gusty winds 41 Flooding 41 Snowfall 41 airspace 41 flight cancelations 41 Downpours 41 Thunderstorms 40 Heavy rains 40 Cloudy skies 40 radioactive particles 40 Mudslides 40 Tropical storm 40 plume 40 Snowstorms 40 dust particles 40 Flash floods 40 Severe storms 40 Severe thunderstorms 39 erupting volcano 39 particulates 39 Unrest 39 fogs 39 powdery snow 39 volcanic debris 39 spewing ash 39 Debris 39 Roadworks 39 particulate matter 39 microscopic particles 39 toxic gases 39 heavy snowfall 38 Icy 38 Icy roads 38 mud slides 38 Soot 38 airborne particles 38 drifting snow 38 Eyjafjallajokull 38 fog 38 snow sleet 37 air 37 nitrogen dioxide 37 Fierce fighting 37 smoky haze 37 Flights 37 Torrential rains 37 eruption 37 Smog 37 volcanic activity 37 freezing rain 37 Mount Redoubt 37 Tropical depression 37 dense fog 37 Landslides 37 Tsunami warnings 37 Bird flu 36 toxic fumes 36 Rough seas 36 thick fog