Weather Related Handy Facts

Rain on an acre
Rainfall of one inch is about 100 tons or 22,600 gallons of water on a flat acre of land
Thunder and the distance to the Lightning
Sound travels about five miles per second, so start counting "1 steamboat - 2 steamboat - ..." [each steamboat is about a second] and then divide by 5 to get to the number of miles you are from the lightning. If you want decimal miles, multiply by 2 and divide by 10 (eg, if you get to 7 steamboats, 7 x 2 is 14 , so the lightning strike is 1.4 miles from where you are.
How much equivalent rainfall is there in snow?
According to the National Snow and Ice Data Center (www.nsidc.org): The commonly used ten-to-one ratio of snowfall to water content is a myth for much of the United States. This ration varies from as low as 100-to-one to as high as about three-to-one depending on the meteorological conditions associated with the snowfall.
When it is snowing, what is the average accumulation?
Nationwide in North America, the average snowfall amount per day when snow falls is about two inches, but in some mountain areas of the West, an average of seven inches per snow day is observed. (www.nsidc.org)
How much will the oceans rise if the glaciers melt?
According to the United States Geological Service (www.usgs.gov), if the glaciers on Greenland melt completely, the oceans will rise about 6.5 meters (over 21 feet). If the ice cap on Antartica melts completely, the oceans will rise an additional 64.8 meters (over 212 feet). If all the glaciers in the world melt, the total rise in the oceans worldwide will be 80.32 meters (over 263 feet - that is one quarter of the height of the Chrysler Building).
If the oceans rise by only 10m (about 33 feet), at least one quarter of the population of the USA will have to find somewhere else to live.
Will the ocean rise happen slowly or quickly?
Melting of the West Antarctic ice sheet would result in a sea-level rise of about 8 meters (over 26 feed). The West Antarctic ice sheet is especially vulnerable, because much of it is grounded below sea level. Small changes in global sea level or a rise in ocean temperatures could cause a breakup of the two buttressing ice shelves (Ronne/Filchner and Ross). The resulting surge of the West Antarctic ice sheet would lead to a rapid rise in global sea level. (From the United States Geological Service (www.usgs.gov))