Weather terms starting with T

164 terms

101. Transport Wind The average wind over a specified period of time within a mixed layer near the surface of the earth.
102. Transportation sector Consists of private and public passenger and freight transportation, as well as government transportation, including military operations.
103. Transverse Bands Bands of clouds oriented perpendicular to the flow in which they are embedded. They often are seen best on satellite photographs.
104. 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.
105. Trapper A valley or basin in which cold air becomes trapped or pooled.
106. Travel Time Time measured from the start of a dam breach to flooding at a particular location.
107. tree rings a pattern observed in tree trunks, in which one band is usually equivalent to one year's growth.
108. Triple Doppler Since any wind has three components (say, in the x, y and z directions), and a single radar measures in only one direction (radial), a single radar cannot…
109. Triple Point The intersection point between two boundaries (dry line, outflow boundary, cold front, etc.), often a focus for thunderstorm development.
110. TROF Trough
111. TROP Tropopause
112. Tropical Advisory Official information issued by tropical cyclone warning centers describing all tropical cyclone watches and warnings in effect along with details…
113. Tropical Analysis and Forecast Branch One of three branches of the Tropical Prediction Center (TPC). It provides year-round products involving marine forecasting, aviation forecasts and…
114. Tropical Cyclone A warm-core, non-frontal synoptic-scale cyclone, originating over tropical or subtropical waters with organized deep convection and a closed surface wind…
115. Tropical Cyclone Associated High Winds High winds that occur a few hundred miles or so inland from the coast of a landfalling tropical cyclone.
116. Tropical Cyclone Plan of the Day A coordinated mission plan that tasks operational weather reconnaissance requirements during the next 1100 to 1100 UTC day or as required, describes…
117. Tropical Cyclone Position Estimate The National Hurricane Center issues a position estimate between scheduled advisories whenever the storm center is within 200 nautical miles of U.S.
118. Tropical Cyclone Update This brief statement is issued by the National Hurricane Center in lieu of or preceding special advisories to inform of significant changes in a tropical…
119. Tropical Depression A tropical cyclone in which the maximum 1-minute sustained surface wind is 33 knots (38 mph) or less.
120. Tropical Disturbance A discrete tropical weather system of apparently organized convection--generally 100 to 300 mi in diameter--originating in the tropics or subtropics…
121. Tropical Storm A tropical cyclone in which the maximum 1-minute sustained surface wind ranges from 34 to 63 knots (39 to 73 mph) inclusive.
122. Tropical Storm Summary Written by the Hydrometeorological Prediction Center* (HPC) after subtropical and names tropical cyclones have moved inland and advisories have been…
123. Tropical Storm Warning A warning for sustained surface winds, associated with a tropical cyclone, within the range of 34 to 63 knots (39 to 73 mph), expected in a specified…
124. Tropical Storm Watch An announcement that a tropical storm poses or tropical storm conditions pose a threat to coastal areas generally within 36 hours.
125. Tropical Wave (formerly known as inverted trough) - A trough or cyclonic curvature maximum in the trade wind easterlies.
126. Tropical Weather Discussion These messages are issued 4 times daily by the Tropical Analysis and Forecast Branch (TAFB) to describe significant synoptic weather features in the…
127. Tropical Weather Outlook This outlook normally covers the tropical and subtropical waters, discussing the weather conditions, emphasizing any disturbed and suspicious areas which…
128. Tropical Weather Summary The National Hurricane Center issues a monthly summary of tropical weather is included at the end of the month or as soon as feasible thereafter, to…
129. Tropical Western Pacific (TWP) site The second ARM research site, it is located in the south Pacific Ocean occupying Manus Island, Nauru Island, and Darwin, Australia.
130. Tropics Areas of the Earth within 20° North and South of the equator.
131. Tropopause The upper boundary of the troposphere, usually characterized by an abrupt change in lapse rate from positive (decreasing temperature with height) to…
132. Tropopause Jet Type of jet stream found near the tropopause. Examples of this type of jet are the subtropical and polar fronts.
133. Troposphere The layer of the atmosphere closest to the Earth's surface.
134. Tropospheric Ozone (O3) See ozone.
135. Tropospheric ozone (O₃) See ozone.
136. Tropospheric Ozone Precursors See ozone precursors.
137. Trough An elongated area of relatively low atmospheric pressure, usually not associated with a closed circulation, and thus used to distinguish from a closed low.
138. TROWAL TROugh of Warm Air ALoft. Typically used during winter weather, it is a "tongue" of relatively warm/moist air aloft that wraps around to the north and…
139. TRPCL Tropical
140. TRRN Terrain
141. True Wind Wind relative to a fixed point on the earth. Wind relative to a moving point is called APPARENT or RELATIVE WIND.
142. TS Tropical Storm
143. TSRA Thunderstorms with rain
144. TSTM Thunderstorm
145. Tsunami Ocean wave produced by earthquakes or underwater landslides.
146. Tsunami Advisory For products of the Pacific Tsunami Warning Center (PTWC - Pacific (except Alaska, British Columbia and Western States) Hawaii, Caribbean (except Puerto…
147. Tsunami Information Statement A tsunami information statement is issued to inform emergency management officials and the public that an earthquake has occurred, or that a tsunami…
148. Tsunami Warning For products of the Pacific Tsunami Warning Center (PTWC - Pacific (except Alaska, British Columbia and Western States) Hawaii, Caribbean (except Puerto…
149. Tsunami Watch For products of the Pacific Tsunami Warning Center (PTWC - Pacific (except Alaska, British Columbia and Western States) Hawaii, Caribbean (except Puerto…
150. Tule Fog Radiation fog in the Central Valley of California. It forms during night and morning hours in late fall and winter months following the first significant…
151. Turbidity The relative clarity of water, which may be affected by material in suspension in the water.
152. Turbulence Irregular motion of the atmosphere, as indicated by gusts and lulls in the wind.
153. Turkey Tower Slang for a narrow, individual cloud tower that develops and falls apart rapidly.
154. Turning Point A temporary point whose elevation is determined by additions and subtractions of backsights and foresights respectively.
155. TVL Travel
156. TVS A procedure used to examine the vagina, uterus, fallopian tubes, ovaries, and bladder.
157. TWD Toward
158. TWEB Transcribed Weather Broadcasts - This NWS aviation product is similar to the Area Forecast (AF) except information is contained in a route format.
159. Twilight The average time of civil twilight, which is the time between civil dawn and sunrise in the morning, and between sunset and civil dusk in the evening.
160. Twister In the United States, a colloquial term for a tornado.
161. Two-Ribbon Flare In solar-terrestrial terms, a flare that has developed as a pair of bright strands (ribbons) on both sides of the main inversion ("neutral") line of the…
162. Type I, II, III, IV (In solar-terrestrial terms) -Emissions of the sun in radio wavelengths from centimeters to dekameters, under both quiet and disturbed conditions. Type I.
163. Typhoon A tropical cyclone in the Western Pacific Ocean in which the maximum 1-minute sustained surface wind is 64 knots (74 mph) or greater.
164. Typhoon Season The part of the year having a relatively high incidence of tropical cyclones. In the western North Pacific, the typhoon season is from July 1 to December…