Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Source: NASA<br />
Source: NASA<br />
Understanding Extratropical Transition:<br />
Types of Large-Scale Storms<br />
Tropical Cyclones<br />
• Low pressure center warmer than<br />
surroundings (Warm-Core Low).<br />
• Develop in air masses of relatively<br />
constant temperature and humidity.<br />
• Symmetrical shape.<br />
• Weak upper-level winds aloft.<br />
Extratropical Cyclones<br />
• Low pressure center colder than<br />
surroundings (Cold-Core Low).<br />
• Develop in areas of temperature<br />
gradients between differing air masses.<br />
• Asymmetrical Shape<br />
• Strong upper-level winds critical in<br />
development and intensification.
Change language