Aero Linx: NWS Weather Education
This page offers information for children, teens and adults. Materials range from coloring books, puzzles and games, to lesson plans, brochures, satellite images, and career information for weather related fields, such as meteorology, hydrology and climatology.
Blocking High
The development of a warm ridge or cutoff high aloft at high latitudes which becomes associated with a cold high at the surface, causing a split in the westerly winds. Such a high will move very slowly, tending to move westward during intensification and eastward during dissipation. It prevents the movement of migratory cyclones across its latitudes.
"Experience has taught us that the more testing we do before the first engine goes into service, that smoother that entry will be. That’s why we are going to log more than 40,000 engine cycles – the equivalent of approximately 10 years of airline service – over the next three years to ensure that we deliver service-ready engines from day one.”
Source: Gareth Richards, LEAP program manager for CFM parent company GE Aviation, following the news that CFM International says it has completed design freeze for the advanced LEAP-1B engine, the exclusive powerplant for the Boeing 737 MAX, paving the way for the first full engine to test in mid-2014.
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