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squall line - 3 dictionary results

squall line

 
Use squall line in a Sentence
–noun Meteorology.
a line or extended narrow region within which squalls or thunderstorms occur, often several hundred miles long.
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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squall line  
n.  A line of thunderstorms preceding a cold front.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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squall line  
A line of sudden, sometimes violent thunderstorms that develop on the leading edge of a cold front. Squall lines can form up to 80 to 240 km (50 to 149 mi) in front of an advancing cold front and can be more than 160 km (99 mi) long. The thunderstorms of a squall line can produce severe weather conditions, such as hail and rain accompanied by winds of over 96 km (60 mi) per hour; they are also associated with tornadoes, especially in spring and early summer.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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