- Cold Front. Cold fronts are depicted by blue line with triangles pointing in the direction of motion. …
- Warm Front. A warm front is the leading edge of a relatively warmer air mass replacing a colder air mass. …
- Stationary Front. …
- Occluded Front.
How do you read a surface chart?
- Cold Front. Cold fronts are depicted by blue line with triangles pointing in the direction of motion. …
- Warm Front. A warm front is the leading edge of a relatively warmer air mass replacing a colder air mass. …
- Stationary Front. …
- Occluded Front.
How do you read a surface pressure map?
The lines on a surface map are called isobars. Isobars are lines of constant pressure which are measured in units called millibars. The numbers
indicate the amount of air pressure, in millibars
, that each line represents.
How do you read the weather station symbol?
These common weather station symbols represent the current weather conditions.
A dot is used for rain and an asterisk for snow
, with the number of dots or asterisks indicting to what extent it is happening. For example, 2 dots is light rain, 3 dots is moderate rain, and 4 dots means there is heavy rainfall.
How do you decode a station model?
- Draw a circle. Look at the sky and divide it into eighths. …
- Determine the temperature and dew point of your weather station. …
- Record sea level pressure to the nearest tenth of a millibar in the upper right of the station model circle.
What does high pressure look like on a weather map?
On weather maps, these readings are represented as a
blue “H”
for high pressure or a red “L” for low pressure.
How do you read a weather map activity?
The lines on a surface map are called isobars. Isobars are lines of constant pressure which are measured in units called millibars. The numbers
indicate the amount of air pressure, in millibars
, that each line represents.
How do you read wind symbols?
The
dot end
of the staff is where the wind is blowing to, while the top of the staff shows the direction from which the wind is coming. The top row of wind barbs in the figure to the right all indicate a north wind. The dot is to the south and the top of the wind barb staff is to the north.
What is the weather symbol for wind?
Calm wind is indicated by
a large circle drawn around the skycover
symbol. One long barb is used to indicate each 10 knots with the short barb representing 5 knots. At 50 knots, the barbs changes to a pennant.
What is the symbol for wind speed and direction?
The symbol highlighted in yellow (in the diagram above) is known as a “
Wind Barb”
. The wind barb indicates the wind direction and wind speed. Wind barbs point in the direction “from” which the wind is blowing. In the case of the diagram below, the orientation of the wind barb indicates winds from the Northeast.
What does a station model show?
In meteorology, station models are
symbolic illustrations showing the weather occurring at a given reporting station
. … Elements in the plot show the key weather elements, including temperature, dew point, wind, cloud cover, air pressure, pressure tendency, and precipitation.
What is the average air pressure at sea level?
(atm) unit of measurement equal to air pressure at sea level,
about 14.7 pounds per square inch
. Also called standard atmospheric pressure.
Where are areas of high pressure located?
High-pressure areas form due to downward motion through
the troposphere
, the atmospheric layer where weather occurs. Preferred areas within a synoptic flow pattern in higher levels of the troposphere are beneath the western side of troughs.
Is high pressure hot or cold?
High pressure systems can
be cold or warm, humid or dry
. The origin of a high-pressure region determines its weather characteristics. If a high-pressure system moves into Wisconsin from the south during the summer, the weather is usually warm and clear.
How do you read weather percentage?
One simple equation used among meteorologists is
P = C x A
, or the probability of precipitation equals the meteorologist’s confidence that it will rain, times the percentage of the area that is expected to get rainfall.
