Precipitation Along Fronts scaffolding activity
Introduction:
Precipitation develops from upward moving air. As the air rises, it cools and the water vapor condenses to form cloud droplets and eventually, precipitation.
Precipitation Any of all of the forms of water particles, whether liquid or solid, that fall from the atmosphere and reach the ground.
Orographic precipitation, also known as relief precipitation, is precipitation generated by a forced upward movement of air upon encountering a physiographic upland (see anabatic wind).
Precipitation is the term given to rain, drizzle, dew, hail, snow and other forms of moisture from the atmosphere which reaches the ground.
A supercell thunderstorm characterized by a relative lack of visible precipitation. Visually similar to a classic supercell, except without the heavy precipitation core (Fig. 5).
precipitation effectiveness"1. That portion of total precipitation used to satisfy vegetation needs. 2. The actual availability of precipitation used in plant development.
Precipitation - Shaft A visible column of rain and/or hail falling from a cloud base. When viewed against a light background, heavy precipitation appears very dark gray, sometimes with a turquoise tinge.
Precipitation Mode - the standard, or default, operational mode of the WSR-88D. The radar automatically switches into precipitation mode from clear-air mode if the measured reflectivity exceeds a specific threshold value.
precipitation type
pressure-type anemometer
Any instrument that measures the wind speed by measuring the pressure exerted by the wind upon the sensor element of that instrument.
precipitation - 1. All liquid or solid phase aqueous particles that originate in the atmosphere and fall to the earth's surface. 2.
PRECIPITATION Any and all forms of water, liquid or solid, that falls from clouds and reaches the ground. This includes drizzle, freezing drizzle, freezing rain, hail, ice crystals, ice pellets, rain, snow, snow pellets, and snow grains.
precipitation attenuation—Reduction of power density because of absorption or reflection of energy by precipitation.
precipitation: rain, drizzle and other forms of moisture falling from clouds.
Precipitation 1. The process where water vapor condenses in the atmosphere to form water droplets that fall to the Earth as rain, sleet, snow, hail, etc.
2.
PRECIPITATION: Any and all forms of water particles, liquid or solid, that fall from the atmosphere and reach the surface.
PRESSURE ALTIMETER: An aneroid barometer with a scale graduated in altitude instead of pressure units.
PRECIPITATION: Liquid or solid water molecules that fall from the atmosphere and reach the ground.
PRESSURE: The force exerted by the interaction of the atmosphere and gravity. Also known as atmospheric pressure.
Precipitation: Liquid or solid water particles that falling from clouds that reaches the ground.
Pressure: Force per unit area.
Pressure gradient force: Change in pressure over distance, divided by the air density.
Precipitation- all forms of water that fall from the sky and reach the ground.
Pressure- a measure of the weight of the air, that is usually measured with a barometer in meteorology.
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Precipitation Processing System
The WSR-88D system that generates 1-hour running, 3-hourly, and running storm total precipitation accumulations. Five functional steps are performed to calculate the best estimate of precipitation: 1) development ...
precipitation: any form of water particles that fall from the clouds and reach the ground. Examples are rain, snow, sleet, and hail. Fog, dew, frost, and clouds are not forms of precipitation.
Precipitation - The precipitation of water from the atmosphere in the form of hail, mist, rain, sleet, and snow. Deposits of dew, fog, and frost are excluded.
Precipitation Any form of water particles-liquid or solid-that falls from the atmosphere and reaches the ground.
Prevailing wind The wind direction most frequently observed during a given period.
PRECIPITATION (PCPN)- Solid or liquid water falling from the air (i.e. snow, sleet, rain, hail, etc.) ...
Precipitation Water in solid or liquid form that falls toEarth's surface from clouds.
Precipitation Moisture that falls from clouds. Although clouds appear to float in the sky, they are always falling, their water droplets slowly being pulled down by gravity.
Non-Precipitation Echoes and Clutter
Sometimes weak echoes will appear on the radar image even though there is no precipitation. These type of echoes are particularly common when the radar site is in the extremely sensitive "Clear Air" mode.
Acid Precipitation - Rain or snow with a pH value that is less than the value for uncontaminated rain.
Acid Precipitation- Rain or snow with a pH value of less than 5.6.
Adibiatic Temperature Change- A cooling or heating of the air caused by expansion of contraction of air molecules, as opposed to the gain or loss of heat.
Acid Precipitation Atmospheric precipitation with a pH less than 5.6. Normal pH of precipitation is 5.6.
Acid precipitation - permalink - collapse
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Precipitation, such as rain, snow or sleet, ...
MIXED PRECIPITATION Any of the following combinations of freezing and frozen precipitation: snow and sleet, snow and freezing rain, or sleet alone. Rain may also be present.
Frozen precipitation
Diamond dust - fine powdery ice crystals that fall in extremely cold weather, even without clouds.
Ice pellets - small hail or sleet type of precipitation.
Hourly Precipitation Data (HPD) This National Climatic Data Center publication is produced monthly by state or region.
FROZEN PRECIPITATION Precipitation that reaches the ground in a frozen state. Examples include snow, snow pellets, snow grains, ice crystals, ice pellets, and hail.
Stage I Precipitation Processing: The first level of precipitation processing, occurring within the WSR-88D computer and performance for each volume scan of the radar.
Precipitation often totally envelops the region of rotation, making visual identification of any embedded tornadoes difficult and very dangerous.
Precipitation was 6.22 inches. This is 2.22 inches above normal. The max 24 hour precipitation occurred on the 10th., when 2.00 inches.
0.91" of rain fell on the 23rd., 1.07" on the 26th.
Precipitation in the form or small tabular and columnar white ice crystals formed directly from the water vapor of the air at a temperature of less than 0 degrees Celsius.
Weather Glossary Search Page
Weather Glossary Source List ...
Precipitation: Any form of water, liquid or solid, derived from the atmosphere that falls to the earth's surface. It can be rain, snow, hail etc.
Precipitation of liquid water that falls from stratiform cloud, with diameter greater than 0.5mm. It is generally steadier than showers. Precipitation (from stratiform cloud) with droplets less than 0.5mm is called drizzle.
Rain day ...
Precipitation - Any form of water that falls from clouds and reaches Earth's surface.
Pressure- The force pushing on an area or surface.
Precipitation featuring tiny water droplets 200-500 microns in diameter. Usually associated with Stratus cloud or rain, which has nearly evaporated before it reaches the ground.
Dropsonde ...
PRECIPITATION: Any form of water particles, liquid or frozen, that fall from the atmosphere and reach the ground.
PRESSURE: The force exerted by the weight of air above a given point, usually expressed in millibars (mb) or inches of mercury (in. Hg).
Precipitation: Water in either liquid or solid form that comes from the atmosphere and falls to earth. It includes, drizzle, rain, freezing rain, hail, ice crystals, ice pellets and snow. It specifically excludes clouds, dew, fog and frost.
Precipitation - General name for water in any form falling from clouds. This includes rain, drizzle, hail, snow and sleet. Although, dew, frost and fog are not considered to be precipitation.
PRECIPITATION MODE - Weather radar mode where lower gain is used on returned signal. Radar switches to this mode when very high reflectivity values (from precipitation) are encountered in clear-air mode.
Precipitation of either transparent, or partly or completely opaque particles or ice (hailstones) usually spheroidal, conical or irregular in form and of diameter very generally between 5 and 50 millimeters, ...
hail - Precipitation in the form of balls or irregular lumps of ice, always produced by convective clouds, nearly always cumulonimbus. An individual unit of hail is called a hailstone.
Hail - Precipitation in the form of balls or clumps of ice produced by thunderstorms. Severe storms with intense updrafts are most likely to produce large hail.
Snow - Precipitation composed of white or translucent ice crystals. Snow forms in cold clouds by the direct transfer of water vapor to ice.
Snowflake - White ice crystals that have combined in a complex branched hexagonal form.
Sleet: Precipitation composed of already frozen droplets - ice pellets - that bounce on impact. Outside the United States, sleet also refers to precipitation with a mixture of rain and snow or rain and ice pellets or quickly melting snow.
Antecedent Precipitation Index (API) Method: A statistical method to estimate the amount of surface runoff which will occur from a basin from a given rainstorm based on the Antecedent Precipitation Index, physical characteristics of the basin, ...
Hail Precipitation composed of balls or irregular lumps of ice with diameters between 5 and 50 mm. Hair hygrograph A recording hair hygrometer.
Sleet - Frozen precipitation that falls as little chunks o' ice.
Sounding - A temperature profile of the atmosphere measured by a radiosonde. Also can indicate wind and dew point.
3) That part of the precipitation falling on an irrigated area that is effective in meeting the consumptive use requirements.
hailSolid precipitation in the form of chunks or balls of ice with diameters greater than 5 millimeters. The stones fall from cumulonimbus clouds.
Climatic elements include precipitation, temperature, humidity, sunshine and wind velocity and phenomena such as fog, frost, and hail storms.
In the tropics, there is the dry and the rainy season, depending on the amount of precipitation. SEA SPRAY Sometimes called salt spray, it is the drops of sea water (salt water) blown from the top of a wave.
In order for a precipitation target to be detected by the radar, it must fill the entire radar beam; therefore, the radar will have a difficult time detecting small showers and thunderstorms at a great distance from the radar.
CGCloud-to-Ground LightningChanceA National Weather Service precipitation descriptor for 30, 40, or 50 percent chance of measurable precipitation (0.01 inch). When the precipitation is convective in nature, the term scattered is used.
 See also: Air, Cloud, Weather, Temperature, Surface
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