New version page

UNC-Chapel Hill GEOG 111 - Wave Cyclones cont'd

Documents in this Course
Load more

This preview shows page 1 out of 2 pages.

View Full Document
View Full Document

End of preview. Want to read all 2 pages?

Upload your study docs or become a GradeBuddy member to access this document.

View Full Document
Unformatted text preview:

GEOG 111 1st Edition Lecture 28 Outline of Last Lecture I. Wave cyclonesa. Where do they occurOutline of Current Lecture I. Types of weather around wave cyclonesII. Stages of developmentIII. Cyclone tracksCurrent LectureI. Types of weather around wave cyclones:a. Counterclockwise circulation of airb. Fronts move with the flow because winds are pushing on the frontc. Everything’s moving downstream (West to East)d. Cool air is behind blue triangles while warm air is behind red semi-circlese. Precipitation:i. Along and ahead of frontsii. Center of cycloneiii. Types1. Overrunning- light and steady/air is stable2. Cold frontal- heavy and more showers/higher rates of precipitation/air rises to a higher level in the column/air is unstable3. Wrap around- around center of cyclonef. When there is a front, there will always be a temperature inversioni. Cooler air beneath relatively warmer airg. More stable aloft along warm fronti. Thin layer of clouds forms along warm frontii. Less steep frontII. Stages of development:a. Front develops (a preexisting, stationary front)i. Indicated by alternated triangles and half-circlesii. Warm air to south, cold air to the northiii. Weak area of low pressure develops on frontb. Wave developsi. Low pressure continues developingii. More of a cyclonic motioniii. Front has a wave motionc. Cyclonic circulation establishedThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.i. Cyclone is maturingii. Pressure continues to get loweriii. Pressure gradient increases1. Winds are getting strongerd. Circulation beginsi. Cold front is always behind or along warm fronte. Occluded front developsi. Cold front has caught up with warm frontii. Occurs as the cyclone deepensiii. Warm air is lighter, less dense so it gets pushed up (this uplift causes Cold Frontal precipitation)1. Stronger cyclones in the winter time when Jet Stream is strongest2. Jet stream closest to our area January-early Marcha. When weather is changing the mostf. Cyclone dissipatesi. Cold/warm fronts don’t really existIII. Cyclone tracksa. Controlled by jet stream positionb. Mainly talking about active time of year (Winter time)c. Three general tracks:i. The Alberta Clipper1. Form most often in Alberta region of Canada2. Fast moving3. Produce light precipitation near track4. Far away from bodies of water  relatively dry system5. NC generally on warm, dry side of


View Full Document
Loading Unlocking...
Login

Join to view Wave Cyclones cont'd and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Wave Cyclones cont'd and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?