Weather Systems and Surface Maps

The video tutorial by Cameron Martis, UTA for ATM 101, covers the analysis of surface maps from the National Weather Service. It explains the components of surface maps, including surface observations, isobaric lines, and weather fronts. The tutorial details how to interpret symbols and data from Alaska station observations and sea weather observations. It also discusses the significance of isobaric lines and pressure systems, and provides an understanding of different types of weather fronts, such as warm, cold, and stationary fronts.

What is the date and time of the surface map being analyzed in the screencast?

• November 14th, 2011 at 11:00 Alaska Standard Time

• November 15th, 2011 at 18:00 Universal Time

• November 15th, 2011 at 11:00 Alaska Standard Time

• November 14th, 2011 at 18:00 Universal Time

What does a quarter-shaded circle in the surface observations indicate?

• The sky is one quarter covered with clouds

• The sky is clear

• The sky is half covered with clouds

• The sky is completely covered with clouds

What does a plus sign next to the cloud cover symbol indicate?

• The pressure is lower than it was 3 hours ago

• The pressure is higher than it was 3 hours ago

• The temperature is higher than it was 3 hours ago

• The temperature is lower than it was 3 hours ago

What is the barometric pressure at the time of observation if the number above the nine is 134?

• 1013.4 mbar

• 13.4 mbar

• 1034.0 mbar

• 134.0 mbar

What does the wind symbol indicate in the sea observation?

• Winds are out of the Northeast at 15 to 20 miles per hour

• Winds are out of the Southwest at 15 to 20 miles per hour

• Winds are out of the Southeast at 15 to 20 miles per hour

• Winds are calm

What do isobaric lines on a surface map represent?

• Lines of constant pressure

• Lines of constant humidity

• Lines of constant temperature

• Lines of constant wind speed

What is the central pressure of the high pressure system mentioned in the screencast?

• 998 mbar

• 1000 mbar

• 1026 mbar

• 1013 mbar

What do circular bumps on a weather front line indicate?

• A stationary front

• A high pressure system

• A warm front

• A cold front

What is a stationary front?

• A front that moves rapidly

• A front that separates two cold air masses

• A front that separates two warm air masses

• A front that does not move

How are the bumps oriented on a weather front line?

• In the opposite direction of the front's movement

• In the direction of the front's movement

• Randomly placed

• In a circular pattern