Thunderstorm
- Browse Related Terms: Hodograph, Left Mover, Max Parcel Level (MPL), OCNL, Outer Convective Band, Outflow, Right Mover, Shelf Cloud, Single Cell Thunderstorm, Supercell Thunderstorm, T, Tail-End Charlie, TSRA, TSTM
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Transverse Rolls - elongated low-level clouds, arranged in parallel bands and aligned parallel to the low-level winds but perpendicular to the mid-level flow. Transverse rolls are one type of transverse band, and often indicate an environment favorable for the subsequent development of supercells. Since they are aligned parallel to the low-level inflow, they may point toward the region most likely for later storm development.
- Browse Related Terms: Avalanche Advisory, Back-building Thunderstorm, BRN, Bulk Richardson Number, CSI, Dry Line Storm, DVLP, Energy Helicity Index, EXTRM, Loaded Gun (Sounding), Symmetric Double Eye, T Rolls, Tilted Storm, Tilted Updraft, Transverse Bands, Transverse Rolls
Terminal Aerodrome Forecast
- Browse Related Terms: 1-2-3 Rule, AGFS, Complex Gale/Storm, CWFA, Developing Gale/Storm, FA, FCST, FOUS, Grids, High Seas Forecast, Marine Zone, NSSFC, OFSHR, PROGGED, Radar Meteorology, RAFC, RAFS, Red Flag Warning, TAF, Valid Time, ZFP
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Tropical Analysis and Forecast Branch (of the TPC)
- Browse Related Terms: Air Transportable Mobile Unit, IPV, National Hurricane Center, NHC, Preliminary Report, TAFB, Tropical Analysis and Forecast Branch, Tropical Weather Discussion
A horizontal, tail-shaped cloud (not a funnel cloud) at low levels extending from the precipitation cascade region of a supercell toward the wall cloud (i.e., it usually is observed extending from the wall cloud toward the north or northeast). The base of the tail cloud is about the same as that of the wall cloud. Cloud motion in the tail cloud is away from the precipitation and toward the wall cloud, with rapid upward motion often observed near the junction of the tail and wall clouds. Compare with beaver tail, which is a form of inflow band that normally attaches to the storm's main updraft (not to the wall cloud) and has a base at about the same level as the updraft base (not the wall cloud).
- Browse Related Terms: Baroclinic leaf shield, Billow Cloud, Catalina Eddy, Cloud Streets, Comma Cloud, Inflow Stinger, Laminar, Lenticular Cloud, Microscale, Morning Glory, Rope Cloud, Stratocumulus, Striations, Tail Cloud
Slang for the thunderstorm at the southernmost end of a squall line or other line or band of thunderstorms. Since low-level southerly inflow of warm, moist air into this storm is relatively unimpeded, such a storm often has a higher probability of strengthening to severe levels than the other storms in the line.
- Browse Related Terms: Hodograph, Left Mover, Max Parcel Level (MPL), OCNL, Outer Convective Band, Outflow, Right Mover, Shelf Cloud, Single Cell Thunderstorm, Supercell Thunderstorm, T, Tail-End Charlie, TSRA, TSTM
In hydrologic terms, height of water immediately downstream of the dam.
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Precipitation or other phenomena which produces echoes on a radar display.
- Browse Related Terms: Angels, AP, BEAM FILLING, BIN, Clutter, Pendant Echo, Precipitation Attenuation, Pulse Resolution Volume, TARGET
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Towering cumulus clouds
- Browse Related Terms: ACCAS, Cb, CBMAM, Cell, Congestus, Convection, CU, Cumuliform, Cumulus, Cumulus Buildups, Cumulus Congestus, DNS, Flanking Line, TCU, Towering Cumulus, Turkey Tower, Updraft
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Tropical Depression
- Browse Related Terms: Anticyclonic Rotation, Direct Hit, Fujiwhara Effect, Indirect Hit, Landfall, Low, Radius of Maximum Winds, TD, Tropical Cyclone Associated High Winds, TRPCL, TS, Willy-Willy
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Today
- Browse Related Terms: ABT, ABV, ACRS, AFT, AFTR, AGN, ALG, ALTHO, AMD, AOA, AOB, ARND, AVBL, BCM, BCMNG, BFR, BGN, BHND, BLO, BLV, BRF, BTR, BTWN, BYD, CFC, CHGS, CLR, DMSH, DURG, EBND, EFCT, ELSW, ENDG, ERLY, EXCLD, FASTST, FM, FTHR, GEN, GNRL, GRT, GRTST, GTR, HND, HV, HWVR, IMPT, INDC, LN, LRG, LTL, LTR, LTST, MDNGT, METRO, MISC, MISG, MNLY, MR, MSTLY, NBND, NEC, NIL, NLY, NMBR, NR, NWLY, NWRD, NWRN, NXT, OTR, OTRW, OVR, PCT, PRBLY, PSBL, PSBLY, QG, RIOGD, RTRD, RW, SBND, SEWD, SGFNT, SPCLY, SS-, Sun Dog, SVRL, SWWD, SXN, TDA, THRFTR, THRU, THRUT, TIL, TWD, WBND, WL, XCITED, YDA
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Terminal Doppler Weather Radar
- Browse Related Terms: ASR-9, Derived Products, Meteorologist, Multiple Doppler Analysis, NEXRAD, Product Resolution, TDWR, TVS, WSR-88D, X-Band
Linkage between changes in atmospheric circulation occurring in widely separated parts of the globe.
- Browse Related Terms: ACYC, Anticyclone, Arctic, Chlorofluorocarbons, CYC, Cyclone, ENSO, NRN, RGN, SPLNS, SRN, Teleconnection
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Temperature- A measure of the internal energy that a substance contains. This is the most measured quantity in the atmosphere.
- Browse Related Terms: ABNDT, Accuracy, BAM, Bathymetry, Climate change, Correlation, Dobson Unit, TEMP, Temperature, variance
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(Abbrev. TEMP)- The temperature is a measure of the internal energy that a substance contains. This is the most measured quantity in the atmosphere.
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(surface-based or elevated) : a layer of the atmosphere in which air temperature increases with height. When the layer's base is at the surface, the layer is called a surface-based temperature inversion; when the base of the layer is above the surface, the layer is called an elevated temperature inversion.
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The change in temperature over a given period of time. Generally, the period between late evening and sunrise. Windy or cloudy conditions will tend to produce slow temperature recovery, while clear, calm weather can cause rapid recovery.
- 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
temperatures
- Browse Related Terms: ATMP, Conduction, Convective Temperature, DEW, DEWP, Freezing Level, Global Warming, Green Line, Hypothermia, Ice Crystals, MINT, SST, TEMPS, Thermistor, Urban Heat Island, Wet-Bulb Temperature, WTMP
This NWS aviation product is a concise statement of the expected meteorological conditions at an airport during a specified period (usually 24 hours). Each country is allowed to make modifications or exceptions to the code for use in each particular country. TAFs use the same weather code found in METAR weather reports.
- Browse Related Terms: DSA, Forecast Periods, HLS, MWS, PNS, Public Information Statement, River Recreation Statement, SEL, Severe Weather Potential Statement, Small Craft Should Exercise Caution, SPS, SWS, Terminal Aerodrome Forecast, TMW
An airflow that is modified or channeled as it passes over or around mountains or through gaps in a mountain barrier.
- Browse Related Terms: Barrier Jet, Blocked Flow, Canyon Wind, Dividing Streamline, Dividing Streamline Height, Flow Splitting, Grout Curtain, Hydraulic Jump, Orographic Waves, Rain Shadow, Rotor Cloud, Terrain Forced Flow