It provided improved resolution and sensitivity, allowing operators to see features such as cold fronts, thunderstorm gust fronts, and mesoscale to even storm scale features of thunderstorms that had never been visible on radar.
22.
These include how tornadoes form in association with middle-sized storm systems called mesocyclones, whether they often form along gust fronts and whether the rotation of the twister originates along the edges of the air flowing out of a storm.
23.
With the Doppler velocity data, the meteorologist can see the downdraft and gust fronts happening, but since this a small scale feature, detection algorithms have been developed to point convergence and divergence areas under a thunderstorm on the radar display.
24.
Remote station wind measurements are transmitted to a master station at the Air Traffic Control Tower ( ATCT ), which polls the remote stations, runs wind shear and gust front algorithms, and generates warnings when windshear or microburst conditions are detected.
25.
The cool air in the gust front acts like a eddy, which can create a gustnado ( to get the general idea of this, picture an area of leaves swirling on a windy day, just on a " much " larger scale ).
26.
Thunderstorms may move along slow moving or stationary outflow boundaries and tornadoes are more likely; whereas fast moving gust fronts in many cases weaken thunderstorms after impact and are less likely to produce tornadoes although brief tornadoes may occur at the time of impact.
27.
The speed of forward movement of the outflow boundary or gust front to some degree modulates the likelihood of tornadoes and helps determine whether a storm will be enhanced by its presence or the inflow be choked off thus weakening and possibly killing the storm.
28.
An "'outflow boundary "', also known as a "'gust front "', is a storm-scale or outflow ) from the surrounding air; similar in effect to a cold front, with passage marked by a wind shift and usually a drop in temperature and a related pressure jump.
29.
Far more precise than Doppler radar used by television meteorologists, it can pinpoint four different hazardous conditions : wind shear, where two opposing flows of air meet in a scissors-like movement; intense rain or hail within hundreds of small zones; gust fronts, or abrupt changes in wind direction; and microbursts, sharp downward movements of air that can cause jets to suddenly lose speed and lift.
