Author Archives: iAlert.com

How Tornadoes Form

The formation of a tornado can be broken down to three stages: 1) low level horizontal spin, 2) updraft tilting, and 3) vertical rotation. Stage 1 (Low Level Horizontal Spin) Before thunderstorms develop, winds change direction and increase in speed with altitude. This … Read More…

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Tornado Facts

Although tornadoes occur in many parts of the world, they are found most frequently in the United States. In an average year, 1,2000 tornadoes cause 60-65 fatalities and 1,500 injuries nationwide. Learn How Tornadoes Form | Criteria for a Tornado Warning   Tornado … Read More…

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The Life Cycle of Thunderstorms

Did you know that 1,800 thunderstorms occur at any moment around the world?? That is 16 million a year!?? So what causes thunderstorms? Thunderstorms need three things to develop: Moisture: To form clouds and rain Unstable air: Warm air that can rise rapidly … Read More…

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What is the difference between FREE and Paid iAlert.com single location alert services?

All iAlert.com services are listed at http://iAlert.com/services and you may notice there is a “Free Severe Weather and Emergency Alerts Single Location” and “Paid Severe Weather and Emergency Alerts Single Location” service. These services are the basically same except for how text messages … Read More…

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Sample Daily Weather Forecasts by Email and Text Message

Among the many services provided by iAlert.com is the “Daily Weather Forecast” sent to members by email and/or by text message.  Members taking advantage of this service have different formats to select from which are highlighted below…   Daily Weather Forecast By Email … Read More…

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The Ultraviolet (UV) Index Scale

The Ultraviolet Radiation Scale or UV Index scale represents the risk of sun exposure and steps to protect yourself from UV radiation are listed below   UV Index 0 to 2 (Low) A UV Index reading of 0 to 2 means low danger … Read More…

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What is ultraviolet (UV) radiation?

The American Cancer Society (cancer.org) describes exposure ultraviolet (UV) radiation as a major risk factor for most skin cancers. Sunlight is the main source of UV rays. Tanning lamps and beds are also sources of UV rays. People who get a lot of … Read More…

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