SUBTROPICAL JET: The branch of the jet stream that is found in the lower latitudes.
SUSTAINED WINDS: The wind speed obtained by averaging the observed values over a one minute period.
SUBTROPICAL JET Marked by a concentration of isotherms and vertical shear, this jet is the boundary between the subtropical air and the tropical air.
Subtropical Jet stream The jet stream typically found between 20° and 30° latitude at altitudes between 12 and 14 km.
Suction vortices Small, rapidly rotating whirls perhaps 10 meters in diameter that are found within large tornadoes.
Subtropical jet streams A zone of unusually strong winds aloft situated between the tropical tropopause and the midlatitude tropopause.
Subtropical Jet This jet stream is usually found between 20° and 30° latitude at altitudes between 12 and 14 km.
Subtropical Jet Stream. 3. Jet Stream: Maximum. Jet Streak. Areas of highest wind speeds. 4. Jet Stream: Subtropical. Location. 18,000 feet to 40,000 feet. 5. Jet Stream: Wind speed: 50 mph to 400 mph. 6.
Upper Level Jet
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Barrier Jet, Inflow Jets, Jet, Jet Max, Jet Streak, Jet Wind Speed Profile, STJ, Subtropical Jet, TROP, Tropopause Jet, Valley Exit Jet ...
Related terms: arctic jet, low level jet, polar jet, and subtropical jet
KATABATIC WIND ...
A relatively narrow band of high-speed winds, generally greater than 50 knots (57 mph or 93 km/h), found in the upper troposphere above regions of strong horizontal temperature contrasts such as fronts. The major jet streams are the subtropical jet ...
The strengthened hemispheric north-south temperature gradient adds energy to the atmosphere. In particular, the subtropical jet is stronger and its maximum wind extends farther to the east than is normal.
There are usually two jet streams per hemisphere, a POLAR and SUBTROPICAL jet, and the polar one being the one at a higher latitude.
In particular, the subtropical jet is stronger and its maximum wind extends farther to the east than is normal. This is often related to the deeper than normal Aleutian low, a split jet-level flow over the western U.S.
cold polar air moving towards the equator meets the warmer equatorial air moving polarward. It is marked by a concentration of isotherms and strong vertical shear. Various types include the arctic, the low level, the polar, and the subtropical jets.
There is a weaker subtropical jet stream as well. Aircraft avoid the turbulence created by the jet streams, or else use them as favouring tailwinds. These winds were not well known in Geddes' time (see References).
 See also: Subtropical, Weather, Storm, Temperature, Wind
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