Examples of common weather map symbols and what they represent

📚 Quick Study Guide

• 🌡️ Temperature: Shown in degrees Fahrenheit (°F) or Celsius (°C).
• 💨 Wind Direction: Indicated by a wind barb; the direction from which the wind is blowing.
• 🌬️ Wind Speed: Also indicated by the wind barb. Longer barbs mean higher wind speeds. A full barb represents approximately 10 knots (11.5 mph), and a half barb represents 5 knots (5.75 mph).
• 🌀 Isobars: Lines connecting points of equal pressure. Closer isobars indicate a stronger pressure gradient and thus stronger winds.
• 🌧️ Precipitation: Various symbols represent different types of precipitation: rain, snow, sleet, etc.
• ☀️ Cloud Cover: Represented by a circle, with the amount of shading indicating the percentage of sky covered by clouds.
• ⚡ Fronts: Boundaries between air masses: Cold front (blue line with triangles), Warm front (red line with semicircles), Stationary front (alternating blue triangles and red semicircles), Occluded front (purple line with alternating triangles and semicircles).

Practice Quiz

1. What does a wind barb pointing to the northeast indicate?
   1. A) Wind blowing towards the northeast
   2. B) Wind blowing from the northeast
   3. C) Wind blowing towards the southwest
   4. D) No wind
2. What do closely spaced isobars on a weather map suggest?
   1. A) Light winds
   2. B) Strong winds
   3. C) High temperatures
   4. D) Low temperatures
3. On a weather map, a blue line with triangles represents a:
   1. A) Warm front
   2. B) Stationary front
   3. C) Cold front
   4. D) Occluded front
4. What does a circle that is half-filled in black represent?
   1. A) Clear skies
   2. B) Overcast skies
   3. C) 50% cloud cover
   4. D) Fog
5. Which symbol represents a warm front?
   1. A) Blue line with triangles
   2. B) Red line with semicircles
   3. C) Purple line with alternating triangles and semicircles
   4. D) Alternating blue triangles and red semicircles
6. What unit is typically used to measure wind speed on weather maps?
   1. A) Kilometers per hour (km/h)
   2. B) Miles per hour (mph)
   3. C) Knots
   4. D) Meters per second (m/s)
7. What does a stationary front represent?
   1. A) A front that is moving rapidly
   2. B) A front that is not moving
   3. C) A front that is dissipating
   4. D) A front that is strengthening