Chapter14a - Thunderstorms Chapter 13 review

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Thunderstorms
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Chapter 13 review persistence forecast  is a prediction that future weather will be the same as the  present weather, whereas a  climatological forecast  is based on the climatology of a  particular region. A  steady-state forecast  assumes the weather systems will continue  to move in the same direction and at the same speed as they have been moving so far. Weather forecasts for up to a few hours are called  very short-range  forecasts; those  that range from about 6 hours to a few days are called  short-range forecasts medium- range forecasts  extend from about 3-5 days into the future, whereas  long-range  forecasts  extend beyond, to about 8.5 days. Seasonal outlooks  provide an overview of how temperature and precipitation patterns  may compare with normal conditions. For a forecast to show skill, it must be better than a persistence forecast or a  climatological forecast. Predicting the movement of weather systems Steady-state method Lows (Highs): towards the greatest pressure drop (rise) In the direction of the winds aloft (5500 m)
Background image of page 2
Examples
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Thunderstorms Storm with lightning and thunder. Also heavy precipitation, sometimes  hail, gusty surface winds. Favorable conditions: Unstable atmosphere Strong convection (convective storm) Buoyant force – the force on a less-dense object immersed in a denser environment
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 23

Chapter14a - Thunderstorms Chapter 13 review

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online