Check your usage. Learn how to check your data, text message, or minute usage with the options below. If you reach 80% or 100% of your minutes, texts, or data usage, we will send you a free text message alert at each threshold. Data, text message and minute usage while roaming may take up to 30 days to show on your account and may impact what is displayed as available.
Sunstroke is a life threatening condition caused by overexposure to extreme heat. Also sometimes called heatstroke, this condition occurs when the bodyâs heat control system fails and it cannot lose the excessive heat. High temperatures can cause the bodyâs major organs to fail.unstroke is a life threatening condition caused by overexposure to extreme heat. Also sometimes called heatstroke, this condition occurs when the bodyâs heat control system fails and it cannot lose the excessive heat. High temperatures can cause the bodyâs major organs to fail.
Sunspots/Solar Cycle. Sunspots are dark regions on the Sun. They are regions of intense magnetic field that are intimately associated with solar flares and coronal mass ejections.Sunspots appear dark on the sunâs surface because they are cooler (3700 K) than the rest of the solar surface (6000 K).Sunspots are cooler because their intense magnetic fields inhibit the rise of heat from the solar interior. Sunspots can appear alone, or in close connection to other sunspots.Sunspots that are clearly connected to each other are grouped into active regions with an official number designated by NOAA. Active regions are classified according to their size and complexity with a scale known as the modified Zurich scale.unspots can appear alone, or in close connection to other sunspots. Sunspots that are clearly connected to each other are grouped into active regions with an official number designated by NOAA. Active regions are classified according to their size and complexity with a scale known as the modified Zurich scale.