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Meteorology              Charles A. Giannetta
                         Meteorologist - Professor 

"S P R I N G"

Spring is the season of the year comprising the transition from with to summer: The vernial season during which the sun is approaching the summer solstice. In popular usage and most meteorological purpose, spring is taken to include the months of March, April, and May in the Northern Hemisphere and September, October, November in the Southern Hemisphere. Except in the tropics spring is the season of rising temperatures and decreasing cyclonic activity over continents. In much of the tropics, neither spring nor fall are recognizable and in the polar regions, both are very short lived. Astronomically, spring is the period extending from the vernial equinox, (the time the Sun approaches the opposite hemisphere, from the northern to southern, this occurs appromimately on March 21, to the summer solstice around June 21. Spring is the time of year for sowing and early growth for harvesting, autumn for clearing and preparing and winther for tilling. Some signs of spring are: The days are progressively becoming longer with the earth continuing its journey around the Sun. The Sun appears earlier each morning and sets later each evening. The melting of the ice and snow, the gradual reviving of sod, the flowing of sap through tree branches . The return of different birds and migration of the Canada Geese northward...these are nature's signs of spring. Awakening of plants and trees comes when the temperature reaches 44 degrees Fahrenheit. Soon comes higher temperatures required for some mature development and summer follows very soon. Spring is a beautiful time of the year. A time for awakening, rebirth, the winter is over and now we can look forward to milder weather, or can we? Unfortunately along with spring comes severe weather in the form of "Thundersorms"..."Tornadoes"..."High Winds"..."Heavy Rains"..."Spring Floods", brought on by the spring thaw of winter snow. Remember your "Severe Thunderstorm and Tornado Safety Rules", and stay tuned to "NOAA Weather Radio" and your local TV and radio stations for the latest weather information on watch and warnings.






Meteorology              Charles A. Giannetta
                         Meteorologist - Professor 
 
"S P R I N G"

With arrival of spring, this is the time of the year when thunderstorms are more frequent. it's also the time when we become more involved with outdoor activities and are exposed to the dangers of thunderstorms. The Nation Weather Service issues "Severe Thunderstorm Watches, Warnings", "Tornado Watches, Warnings" when the need exists. This is the explanation of the terminology used in issuance of these watches and warnings. 1. Severe Thunderstorm

Winds more than 50 mph or hail. 2. Hail

Hailstones are precipitation in the forms of lumps of ice that occur during some thunderstorms. Hailstones range from pea size to the size of grapefruit. 3. Tornado

A violently rotating column of air which descends from a thunderstorm. Tornadoes move about 30 mph and have destructive winds which can exceed 200 mph. 4. Severe Thunderstorm Watch

Severe thunderstorms are possible. 5. Severe Thunderstorm Warning

Severe thunderstorms have been sited or indicated by radar. 6. Tornado Watch

Tornadoes are possible with severe thunderstorms. This gives the public time to plan. 7. Tornado Warning

Tornado detected: take shelter immediately. 8. NOAA Weather Radio

The National Weather Service broadcasts the latest weather information 24 hours a day over NOAA Weather Radio. If you have a weather radio receiver, you can hear the latest watches and warnings when issued.


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