Neiep 400 Final Exam (Latest Semester) Graded A+

The energy supplying a mid latitude (extratropical) cyclone can come from both the potential energy contained in air mass temperature contrasts and oceanic fluxes of heat (sensible and latent), while tropical cyclones are powered only by ocean heat fluxes - primarily latent heat. {Ans: } TrueEast Coast cyclonic storms are efficient precipitation producers because of proximity to the warm Atlantic ocean, where ocean moisture fluxes are very high. {Ans: } TrueCompared to hurricanes, extratropical cyclones tend to feature a compact, extreme pressure gradient leading to a relatively small footprint of high (or even damaging) gradient wind. {Ans: } FalseNorth American storm tracks (extratropical cyclones) follow a seasonally shifting pattern, whereby high frequency, intense storms transit the southern U.S. during the warm season (summer) months. {Ans: } FalseWhich of the following physical characteristics are needed for the development of an extratropical cyclone? a. Trough in the jet stream b. Zone of strong temperature contrast in lower atmosphere c. More air exiting the top of the vortex than entering the base d. Choices a and b only e. Choices a, b and c {Ans: } Choices a, b, and cThe lifetime of an extratropical cyclone, and therefore its peak intensity, is self-limiting