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Across 1. The direction is determined from which it is blowing 3. Circulation of air around a low pressure center 7. Types of icing are clear, _______ and mixed 11. Decrease in temperature with increase in height 13. Weather advisory of opnl interest for all/potentially hazardous limited cap acft 14. Two types of cloud formations are cumulus and ____ 15. Air deflected to the right in the northern hemisphere 19. Types of barometers mercurial and 20. Small, dangerous downdrafts of wind extending horizontally up to 2.5 miles 23. 5/8, 6/8, 7/8 of sky obscured by clouds 24. Most common and persistent weather hazards encountered in aviation 25. Aircraft altitude is measured above 26. Greatest distance that can be seen over at least 1/2 of the horizon circle 27. Pressure, temperature, and humidity are used to determine 28. ______SIGMET for thunderstorms and tornadoes

Down 2. Forms of precipitation which restrict visibility include rain, snow, _____ 4. Weather phenomenon particularly hazardous to aviation 5. Wind created by uneven heating of the surface of the earth 6. Lines connecting points of equal pressure 8. +TSRA 9. Narrow, high speed meandering band of air at high altitudes 10. Report of meteorological phenomena encountered in flight report by aircraft 12. Conditions reduce surface visibility to near zero are blowing sand,snow, ____ 16. Warm front, cold front and _________ front 17. Weather advisory concerning extreme turbulence and severe icing 18. Sudden change in windspeed and direction in a short distance 21. Increase in temperature with increase in height 22. Weather report required for a significant change in weather