What are the lines on a temperature map called?

What are the lines on a temperature map called?

Isotherms: surface maps. A line connecting points of equal temperature is called an isotherm. That means, at every point along a given isotherm, the values of temperature are the same.

How is temperature shown on a map?

Many maps use ​isotherms​ – lines connecting points with the same temperature – to show areas of similar temperature. Color is also useful for temperature maps: hot areas are shades of red, and cold areas are blue and violet.

What are the weather symbols on a map?

Surface Weather Station Plots They include reports of a variety of weather data at that location: Air temperature (in degrees Fahrenheit) Dewpoint temperature (degrees Fahrenheit) Current weather (marked as one of dozens of symbols established by National Oceanic and Atmospheric Administration or NOAA)

What are isotherms on map?

Isotherms (map on right) are red lines which connect equal temperature values based on the set from 0 °F with an interval of 10 F° above or below that. Isotherm values are labeled in red within the isotherm lines that are contained in the map area.

What does the letter H on a weather map mean?

high pressure
Atmospheric pressure is measured with an instrument on the ground called a barometer, and these measurements are collected at many locations across the U.S. by the National Weather Service. On weather maps, these readings are represented as a blue “H” for high pressure or a red “L” for low pressure.

How is temperature recorded on a weather map?

If your weather map has station models, each one will plot the temperature, dew-point, wind, sea level pressure, pressure tendency, and ongoing weather with a series of symbols. Temperature is generally recorded in Celsius degrees and rainfall is recorded in millimeters.

What does a line with all triangles mean on a weather map?

Categories: Featured Articles | Meteorology. Article Summary X. To read a weather map, understand that a line with all triangles symbolizes a cold front, which will bring humidity and possibly rain. A line with all circles signifies a warm front and the dry, cool air that comes with it.

What do the Blue Lines on a weather map mean?

Blue “cold front” lines bring rain and wind in the direction the triangular marks point. Red “warm front” lines bring brief rain followed by warming in the direction of the semi-circles.

What does a cold front look like on a weather map?

A warm front can initially bring some rain, followed by clear skies and warm temperatures. A cold front is the transition area where a mass of cold air moves in to replace a mass of warm air. On a weather map, a cold front is usually drawn using a solid blue line with triangles pointing in the direction of the warm air that will be replaced.