Costly Hail Storms in the U.S.Hail No By: Sarah ArnoldCriminology and Political Science

College of Arts and Sciences

Hail Formation

More Updraft More Rings Larger Hailstones

Types of Hail Damage

Automobile Damage

Crop Damage

Building Damage

Factors that Affect Hail Damage

• Hail Characteristics– the size of hailstones–number of hailstones that fall per unit area– strength of winds during a hail fall

• Target Characteristics–Crop Characteristics–Property Characteristics

Property Damage by Hail Size

• Quarter-size (1 inch)– Damage to shingles

• Golf ball (1.75 inches)– Dents on Car

• Baseball (2.75 inches) – Windshields smashed

• Softball (4.5 inches) – Holes in roofs

Hail Storm Damage

Hail Alley

Dry Warm Air

Cold Mountain Updrafts

Moist Warm Air

Dallas Hailstorm:3rd Costliest Hailstorm in U.S. History

• 5 May, 1995–Hail up to softball size–70 mph winds–Flash flooding

Total Cost of Damage:

$1.1 billion

St. Louis Hailstorm: 2nd costliest Hail storm in U.S. History

• April 28, 2012–2 waves of supercell thunderstorms–Hail up to softball size–50-60 mph winds

Total Cost of Damage:

$1.6 billion

Kansas City Hail Storm:Costliest Hail Storm in U.S. History

• April 10, 2001–Long-lived high-precipitation supercell

thunderstorm–Winds over 70 mph–9 weak tornados

$1.9 billion

Total Cost of Damage:

Main Points• Hail Formation• Types of Hail Damage

– Crop Damage, Automobile Damage, Building Damage• Trends

– Hail occurs most often in the Summer – Hail occurs most often in the great plains– The number of severe hail storms annually is increasing

• Costliest Hail Storms in U.S. History– $1.1 billion: Dallas 1995– $1.6 billion: St. Louis 2012– $1.9 billion: Kansas City 2001

Hail News Awesomeness

Sourceshttp://www.youtube.com/watch?v=zP_Kr6i7itM

http://www.youtube.com/watch?v=XjSD4sS87FMhttp://www.stayintouch.us/wp-content/uploads/2012/11/Molepole-Hail-Storm_05.jpg

http://en.wikipedia.org/wiki/List_of_costly_or_deadly_hailstormshttp://www.crh.noaa.gov/news/display_cmsstory.php?wfo=lsx&storyid=88129&source=0

http://dfw.cbslocal.com/2012/06/14/costliest-storms-ever-for-north-texas/http://journals.ametsoc.org/doi/full/10.1175//2549.1

http://www.mybiginsurance.com/auto-insurance/handle-hail-damage-car/http://www.crh.noaa.gov/lsx/?n=04_10_2001http://www.crh.noaa.gov/lsx/?n=04_28_2012http://www.ems.psu.edu/~diercks/miller.html

http://www.wunderground.com/blog/weatherhistorian/worlds-largest-hailstoneshttp://www.theweatherprediction.com/severe/gianthail/

http://wxguys.ssec.wisc.edu/2011/04/10/how-does-hail-form/http://meteorology.knoji.com/all-about-hailstorms-and-how-hail-forms/

http://atmo.tamu.edu/weather-and-climate/weather-whys/673-hail-formationhttp://www.prweb.com/releases/2013/3/prweb10558180.htm

http://www.xweather.org/hailstormhttp://www.wunderground.com/news/hail-dangers-costs-20130403?pageno=3

http://www.riskmeter.com/riskmeter/Resources/CDS%20Hail%20Research%20Paper.pdfhttp://www.isws.illinois.edu/pubdoc/CR/ISWSCR2009-12.pdf

https://www.nicb.org/newsroom/news-releases/hail-damage-claims-in-the-us