Weather terms starting with L

131 terms

101. Longwave Radiation A term used to describe the infrared energy emitted by the earth and atmosphere at wavelengths between about 5 and 25 micrometers.
102. Longwave Trough A trough in the prevailing westerly flow aloft which is characterized by large length and (usually) long duration.
103. Loop Prominence System (abbrev. LPS) In solar-terrestrial terms, a system of loop prominences associated with major flares.
104. Looping A pattern of plume dispersion in an unstable atmosphere, in which the plume undergoes marked vertical oscillations as it is alternately affected by rising…
105. LOPRES low pressure
106. Loran Long Range Navigation, a system of long range navigation whereby latitude and longitude are determined from the time displacement of radio signals from…
107. Lotic System A flowing body of fresh water, such as a river or stream. Compare lentic system.
108. Low A region of low pressure, marked as "L" on a weather map. A low center is usually accompanied by precipitation, extensive cloudiness, and moderate winds.
109. Low Emission Vehicle (LEV) A vehicle meeting the low-emission vehicle standards.
110. Low Frequency (abbrev. LF) The portion of the radio frequency spectrum from 30 to 300 kHz.
111. Low Level Jet (abbrev. LLJ)- A region of relatively strong winds in the lower part of the atmosphere.
112. Low Pressure System An area of a relative pressure minimum that has converging winds and rotates in the same direction as the earth.
113. Low-level clouds Low-level clouds (St, Sc, Ns) Stratus, Stratocumulus, and in some degree, Nimbostratus are low clouds.
114. Lower heating value Quantity of heat liberated by the complete combustion of a unit volume or weight of a fuel assuming that the produced water remains as a vapor and the…
115. Lowland Flooding Inundation of low areas near the river, often rural, but may also occur in urban areas.
116. LP Storm Low-Precipitation storm (or Low-Precipitation supercell). A supercell thunderstorm characterized by a relative lack of visible precipitation.
117. LPS Abbreviation for lipopolysaccharide.
118. LRG Large
119. LSR Local Storm Report. A product issued by local NWS offices to inform users of reports of severe and/or significant weather-related events
120. LST Local Standard Time
121. LTD Limited
122. LTL Little
123. LTLCG Little Change
124. LTNG Lightning- A visible electrical discharge produced by a thunderstorm. The discharge may occur within or between clouds, between the cloud and air, between…
125. LTR Abbreviation for long terminal repeat.
126. LTST latest
127. Lubricant (LOO-brih-kant) An oily or slippery substance.
128. LVL Level
129. LVLS levels
130. LWR Lower
131. Lysimeter An isolated block of soil, usually undisturbed and in situ, for measuring the quantity, quality, or rate of water movement through or from the soil.