Across
- 3. a covering of grey cloud
- 5. an arch of colours visible in the sky
- 7. condensed watery vapour floating in the sky
- 10. a quick natural electrical discharge
- 11. pellets of frozen rain
- 12. low pressure area with winds spiraling inwards
- 14. strong dirty wind
- 16. a storm with a violent wind
- 18. falling water vapour frozen into ice crystals
- 19. destructive violently rotating winds
- 20. not transparent or clear
Down
- 1. warm and humid weather
- 2. thick cloud which obscures visibility
- 4. moist atmosphere falling in separate drops
- 6. a long severe snowstorm
- 8. submerge an area with water
- 9. loud rumbling after a lightning flash
- 13. giant wall of dust
- 15. bright with sunlight
- 17. light rain falling in very fine drops