A period of mild weather popularly supposed to recur each year in late January.
- Browse Related Terms: Bartel's Rotation Number, Colorado Low, Day Length, Excessive Heat Warning, Forecast valid for, Growing Degree Day, Heat Wave, Humidity Recovery, Indian Summer, January Thaw, Night, recurrence, Temperature Recovery, Tropical Cyclone Plan of the Day, Twilight, UNSBL
A fast-moving wind current surrounded by slower moving air.
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( or Jet Streak) A point or area of relative maximum wind speeds within a jet stream.
- Browse Related Terms: ALQDS, Entrance Region, Exit Region, Jet Max, Jet Streak, Left Exit Region, Left Front Quadrant, Quad, Right Entrance Region, Right Rear Quadrant, RLTV, RRQ, SRH
Same as Jet Max; a point or area ("streak") of relative maximum wind speeds within a jet stream.
- Browse Related Terms: ALQDS, Entrance Region, Exit Region, Jet Max, Jet Streak, Left Exit Region, Left Front Quadrant, Quad, Right Entrance Region, Right Rear Quadrant, RLTV, RRQ, SRH
(abbrev. JSTR) Relatively strong winds concentrated in a narrow stream in the atmosphere, normally referring to horizontal, high-altitude winds. The position and orientation of jet streams vary from day to day. General weather patterns (hot/cold, wet/dry) are related closely to the position, strength and orientation of the jet stream (or jet streams). A jet stream at low levels is known as a low-level jet.
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A loose term for filamentous cirrus that appears to radiate from a point in the sky, and exhibits characteristics associated with strong vertical wind shear, such as twisted or curved filaments.
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A vertical wind speed profile characterized by a relatively narrow current of high winds with slower moving air above and below. A large wind (speed) shear occurs above and below the jet axis.
- Browse Related Terms: ADPC, Correlated Shear, Deformation Zone, FNTLYS, Frontogenesis, Helicity, Jet Wind Speed Profile, LLWS, Microburst, Mixing Depth, Mountainado, Profiler, Shear, Speed Shear, Storm Relative, Straight-Line Hodograph, Tornado Vortex Signature, VAD Wind Profile, VWP, Wind Shear, Wind Shear Profile
In hydrologic terms, a structure (e.g.; a pier, or mole of wood or stone) extending into a sea, lake, or river to influence the current or tide or to protect a harbor
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In hydrologic terms, an Icelandic term meaning glacier dammed lake outburst flood
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Jet Stream - Relatively strong winds concentrated in a narrow stream in the atmosphere, normally referring to horizontal, high-altitude winds. The position and orientation of jet streams vary from day to day. General weather patterns (hot/cold, wet/dry) are related closely to the position, strength and orientation of the jet stream (or jet streams). A jet stream at low levels is known as a low-level jet.
- Browse Related Terms: AGL, ASL, Explosive Deepening, Gamma-Ray, Jet stream, JSTR, LVL, LVLS, Mesopause, MSLP, Rapid Deepening, SL, SLP, Storm Surge, TIDE, ULJ, Unsettled
In hydrologic terms, water formed chemically within the earth and brought to the surface in intrusive rock
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