2-16. 2-17. 2-18. 2-19. Assume you a forecasting an isobar over you station. You find that the current 500-hPa height over your station is 5580-m and the forecasted value is 5640-m. The current  1000-  to  500-hPa  thickness is 5640-m,    and the forecasted value is 5520-m. The current sea level pressure is 1029.0 hPa. What value should you forecast for the sea level  pressure? 1. 1014.0 hPa 2. 1021.5 hPa 3. 1036.5 hPa 4. 1044.0 hPa Which of the following processes is capable  of  producing  precipitation in 1. 2. 3. 4. appreciable amounts. Nonadiabatic   cooling Adiabatic  lifting  of  air Evaporation  of  additional moisture  into  the  air Radiation  and  conduction associated  with  advection Adiabatic lifting of air can be caused by all EXCEPT which of the following  cooling  processes? 1. Frontal  lifting 2. Orographic  lifting 3. Vertical   stretching 4. Horizontal   divergence Which  of  the  followinq  coolinq processes  is  the  most-effective  and intensive? 1. Frontal  lifting 2. Orographic  lifting 3. Vertical   stretching 4. Horizontal   divergence Figure  2-A IN ANSWERING QUESTION 2-20, REFER TO 2-20. 2-21. 2-22. 2-23. The  most  marked  convergence  occurs at what position? 1. 1 2. 2 3. 7 4. 4 Horizontal  convergence,  orographic lifting,  or  frontal  lifting  acting alone or in combination with one another can occur in any particular weather  situation. 1. True 2. False Which  of  the  following  processes will  NOT  prevent  precipitation  by increasing  the  temperature  of  the air? 1. Air descending the lee side of a  mountain 2. Air  descending  from  aloft  to compensate  for  divergence  of air  from  another  region 3. Air descending because the mass ahead of a front is moving with a  relative  component  away  from the front 4. Air ascending the lee side of a mountain When  frontal  weather  extends  far behind a surface cold front, the 700-hPa level isoheights will be at what  relative  position? 1. Perpendicular  to  the  surface front 2. Parallel to the upper front 3. Parallel to the surface front 4. Perpendicular  to  the  isotherms 2-24. Well-developed  cloud  bands  noted  on satellite  imagery  are  associated with active cold fronts at the surface,    and are the result of which  of  the  following  processes? 1. 2. 3. 4. The veering of the winds aloft associated  with  the  surface f rent The backing of the winds aloft associated  with  the  surface front An upper wind flow that is nearly  perpendicular  to  the frontal zone An upper wind flow that is parallel, or nearly parallel, to the frontal zone FIGURE  2-A. 11