Web Results

en.wikipedia.org/wiki/Squall_line

A squall line is a line of thunderstorms forming along or ahead of a cold front. In the early 20th ... The concept of frontal zones led to the concept of air masses. ... If squall lines form over arid regions, a duststorm known as a haboob may ... the squall line cause high winds, which are strongest where the line is most bowed out.

quizlet.com/12646584/met1010-final-flash-cards

If the front is scheduled to pass your area in 6 hours, a persistence forecast for your area for 2 hours ... You are positioned in the middle of a large, stationary air mass .... The most likely time for an ordinary thunderstorm to form is: .... A line of thunderstorms that forms ahead of an advancing cold front is called a: Squall line.

okfirst.mesonet.org/train/meteorology/Fronts.html

Fronts are zones of transition between two different air masses. ... If the wedge is moving into an area of warmer air, the front is called a cold front. ... Cold fronts tend to be associated with the most violent weather among all types of fronts. ... with squall lines (a line of strong thunderstorms parallel to and ahead of the front) .

en.wikibooks.org/wiki/High_School_Earth_Science/Changing_Weather

They most commonly form in polar and tropical regions, which have very ... If the air mass is colder than the ground, it is given the designation k, for cold. .... A squall line is a line of severe thunderstorms that forms along a cold front ... As the front passes over you, the temperature and dew point rise and the rain likely ends .

atoc.colorado.edu/~saraht/atoc1050/Class_News/Chapter18ppt.pdf

Considered severe if contains one or more of the following three things is likely or occurs: Hail with ... airmass (as opposed to along a front). Also called .... form? What role does the cold pool play in the formation of a squall line? How does the ... will happen if the gust front encounters warm, moist air ahead of the.

www.srh.noaa.gov/jetstream/synoptic/wxmaps.html

Cold fronts are depicted by blue line with triangles pointing in the direction of motion. ... So being "ahead of the cold front" is being in the "warm" air mass and " behind of the ... So, it is still called a cold front even in summer if the temperature only lowers from, for example, ... Squall lines are most notably seen in derechos.

www.weather.gov/media/zhu/ZHU_Training_Page/Miscellaneous/fronts/fronts.pdf

If you are not registered for ATMO 251, you may view these course notes, but you may not .... associated with the frontal zone between warm and cold air masses is also a consequence ... during the next severe weather outbreak: more than likely, you'll find that ... Sometimes a squall line will form along a cold front, and the.

mrcc.isws.illinois.edu/living_wx/thunderstorms/index.html

This diagram is a three-dimensional example of how a cold airmass advances - lifting ... A thunderstorm is considered severe if one or more of the following criteria are met: ... A squall line is a group of thunderstorms arranged in a line ( figure 8). They often form ahead of cold fronts associated with midlatitude low pressure ...

usatoday30.usatoday.com/weather/resources/askjack/wjack3.htm

A: Thunderstorms often occur along or slightly ahead of a cold front. .... A: Lightning strikes are more likely over the world's oceans due to their enormity, ... Q: If a cold front is the front edge of a mass of cold air at the ground, is there a cold .... Many supercell thunderstorms and squall lines that form in the central USA are the ...

climate.ncsu.edu/edu/k12/.liftingmechanisms

Jun 25, 2012 ... Lifting mechanisms are forms of lift that cause air to rise. ... The upward motion of air can lead to the formation of clouds and precipitation if there is ... Many times during the Spring and Fall, squall lines or severe ... As a result, thunderstorms are more likely to form with cold fronts rather than warm fronts.