Related by context. Frequent words. (Click for all words.) 50 ash spewed 47 Thick fog 45 Heavy fog 45 Thick smoke 42 thick plume 42 Iceland volcanic ash 42 Dense fog 42 Iceland Eyjafjallajokull volcano 41 gray haze 41 acrid smoke 41 smoke wafted 41 thick haze 41 volcanic ash plume 40 smog choked 40 peat bog fires 39 Fireworks explode 39 clouds 38 Explosions rocked 38 fierce thunderstorm 38 haze 38 smoke plumes 38 blanketed 38 smoke billowed 38 Alaska Mount Redoubt 38 Nov 38 Indonesia Mount Merapi 38 cloud 38 eerily empty 37 Blowing snow 37 billowed 37 Plumes 37 Dark clouds 37 Fireworks lit 36 billowing clouds 36 Smoke billowed 36 Alex Rios homered 36 BRITISH Airways 36 hazy skies 36 Pacaya volcano 36 freezing fog 36 trans Atlantic airliners 36 OAKLAND CALIF 36 spewed ash 36 billowing smoke 36 skies 36 mist 36 Icelandic volcano eruption 35 Volcanic ash 35 smoky haze 35 greyish 35 soot particles 35 hovered overhead 35 thick fog 35 Torrential downpours 35 Defending champion Amelie Mauresmo 35 pall 35 black smoke billowed 35 snarled traffic 35 dense fog 35 air gaffeNRL Footy Show 34 By Mark Ledsom 34 normally bustling 34 smog 34 AIRLINES 34 Dec 34 triggered flash floods 34 Swaths 34 Mount Merapi volcano 34 billowing 34 tractor trailer jackknifed 34 shrouded 34 smoggy 34 Explosions shook 33 Thick black 33 Whiteout conditions 33 Heavy downpours 33 stranding motorists 33 millionaire adventurer Steve 33 Ringed 33 fog 33 Bitter cold 33 active volcanos 33 volcano erupts 33 flight cancelations 33 helicopters buzzed 33 Icelandic volcano 33 greenish yellow 33 sandstorm 33 Peter Dejong 33 volcanic ash 33 thunderheads 33 black smoke billowing 33 peat fires 33 flight cancellations 32 spewing lava 32 milky 32 snarling traffic 32 velvet curtains 32 volcanic plume 32 grayish 32 dark clouds