Transcript Reading a Weather Map

Weather Stations &
Weather Map Symbols
Weather Station Models
• Label the
numbers and
symbols of
your weather
station model
in your notes,
• Follow along.
• The segments are
highlighted in
yellow
Temperature
• Top left
number
shows the
temperature
Weather Symbol
• The symbol
between the two
numbers on the
left indicate
what the
weather is in
terms of
precipitation.
• Notice how
more
symbols
indicate
intensity
• More snow
flake symbols
=more snow
• More rain
symbols =
heavy rain
Dew Point
• The number on the
bottom left shows
the temperature the
air must be for
condensation to
occur or the Dew
Point.
• Humidity is a factor
of the dew point.
• This number will be
lower than the
actual temperature.
• Remember cold air can’t
hold moisture like warm
air
Cloud Cover
The percentage
of the circle that
is shaded in
reflects the
percentage of
cloud cover in
the sky
Similar to a pie
chart
Air Pressure •
This number is displayed
on the top right of the
weather symbol
• When the # is high or
rising, the weather is fair
because the pressure is
high
• When the # is low or
dropping, the weather is
rainy, because the
pressure is low
Wind Barb
• This shows the
direction of the
wind, it will point in
the direction the
wind is coming
from, this shows
the wind coming
from the Southeast
• The # of lines
and/or triangles
indicates the
speed of the wind
• The wind barb points in the direction it is coming FROM.
• Stronger winds have more flags, or marks
Fronts on a weather map
Warm
occluded
• Cold
Stationary
The symbols point in the direction that the front
is moving towards
Pressure symbols:
Isobars: connect areas with equal air pressure
The distance between the isobars is called the
pressure gradient • The closer the isobar
lines, the greater the
change in air pressure,
and the greater/faster
the winds speeds.
•
High pressure systems
bring clear/sunny
weather and wind flows
out and clockwise
(right)
•
Low pressure systems
bring overcast/stormy
weather and wind flows
in and counterclockwise (left)
Weather Map