The size of hail, once fully formed, varies from pinheads to softballs. A few outer layers frequently melt when the hail mixes with other warmer precipitation such as snow and rain. The National Weather Service has official size categories for hail that are useful for gauging the damage they can cause to crops.
www.wisegeek.com/how-does-hail-form.htm www.wisegeek.com/how-does-hail-form.htm
Hail is formed in huge cumulonimbus clouds, commonly known as thunderheads. When the ground is heated during the day by the sun, the air close to the ground is heated as well. Hot air, being less dense and therefore lighter than cold air, rises and cools.
www.ucar.edu/communications/factsheets/Hail.html www.ucar.edu/communications/factsheets/Hail.html
An animated illustration of how hail is formed. ... Subscribe to the ... Type Size: S M L...
www.statesman.com/weather/content/weather/sm_interactiv... www.statesman.com/weather/content/weather/sm_interactive/hail.html
Precipitation composed of chunks or lumps of ice formed in strong updrafts in cumulonimbus clouds.
http://wiki.answers.com/Q/How_is_hail_formed
"Hail is a type of graupel, a form of precipitation, composed of spears or irregular lumps of ice. It occurs when supercooled water droplets (remaining in a liquid state despite being below the freezing point, 0 °C/32 °F) in a storm cl...
http://answers.yahoo.com/question/index?qid=20090322173...
Finally, when they are too heavy for the up-blowing wind, they come to the ground as hail. Hope this answers your question, Dillon. I got this information from a book called Everyday Weather and How it Works, by Herman Schneider.
www.madsci.org/posts/archives/mar99/922122417.Es.r.html
Subject: how is hail formed? ... Date: Thu Mar 18 19:00:11 1999; Posted by dillon martindale; Grade level: K-3 School: gulliver south miami; City: miami State/Province: florida Country: usa; Area of science: Earth Sciences; ID: 921805211.Es...
www.madsci.org/posts/archives/mar99/922122417.Es.q.html
I've always heard about softball sized hail, but have never seen anything like that where I live in California. Answer:; "Hail is a type of graupel, a form of precipitation, composed of spears or irregular lumps of ice.
www.faq4me.net/Weather/1818875.htm
USATODAY.com Latest News ... Thunderstorms sometimes drop balls of ice known as hail in addition to rain. ... Hail forms when strong currents of rising air, known as updrafts, carry water droplets high enough in a thunderstorm for the water droplets to freeze.
www.usatoday.com/weather/tg/whail/wds9.htm www.usatoday.com/weather/tg/whail/wds9.htm
rain, snow, hail, sleet, even freezing rain. The purpose of this module is to introduce a number of cloud classifications, different types of precipitation, and the mechanisms responsible for producing them. The Clouds and Precipitation module has been organized into the following sections:
ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/cld/home.rxml
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