Lecture 19 Notes F 2010

Lecture 19 Notes F 2010 - Lecture 18 Additions Add to...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Add to Lecture 18: The supercell is a highly organized thunderstorm. Supercells are rare, but pose a high threat to life and property. Like a single-cell, a supercell has one main updraft. The difference in the updraft of a supercell is that the updraft is extremely strong, reaching speeds of 150-175 miles per hour. The main characteristic that sets the supercell apart is rotation. The rotating updraft produces extreme severe weather events, such as giant hail, strong downbursts of 80 miles an hour or more, and tornadoes. Matching (Answers provided to the questions below in Lecture 18): Updrafts (K) Downdrafts (E) Single cell (F) Multicell cluster (G) Squall line (H) Derechos (C) Supercell (I) Gust fronts (J) Downbursts (A) Hail (D) Lightning (L) Thunder (M) Tornadoes (B) A. exceptionally strong downdrafts B. A rotating funnel cloud that has lowered to earth C. strong linear winds over 58 mph, formed from clusters of downbursts D. rain of semi-spherical, concentrically layered ice balls E. when raindrops descend through the cloud, and their frictional drag pulls air toward the ground F. storms that have only one updraft (one cloud mass) G. a group of storm cells, moving along as one unit, with each cell in a different phase H. a long line of storms with a continuous well-developed gust front at the leading edge of the line I. highly organized thunderstorm with rotation and only one, extremely strong updraft J. a large column of cold air, originating high in the thundercloud that can descend rapidly and extend far from the main body of the storm. K. a rising column of air L. the flashes of light caused by enormous electric discharges that briefly superheat the air to up to 54,000°F M. Sound made due to rapidly expanding gases along the channel of a lightning discharge Lecture 19: Chapters 10 and 20 Climate Climate is the consistent, long-term behavior of weather over time, in contrast to weather, which is the condition of the atmosphere at any given place and time. Two major factors affecting climate are temperature and precipitation. These are influenced by all of the factors we have considered so far: latitude and insolation; air masses, pressure systems, marine vs. continental influences; and the impacts of mountain ranges. Temperature and precipitation are shown on
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

Lecture 19 Notes F 2010 - Lecture 18 Additions Add to...

This preview shows document pages 1 - 2. Sign up to view the full document.

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