The result is similar to when electrons collide with neon gas to create bright lightbulbs. The aurora borealis produces neon green waves in the night sky when electrons from space collide with atoms and molecules of the upper atmosphere of Earth, according to NASA. Now, the forecast has changed and only a handful of states are expected to see the display, according to the institute. Original forecasts from the University of Alaska's Geophysical Institute showed 17 states could see the northern lights between July 12 to 13. The aurora borealis, also known as the northern lights, could be visible in several states this week. Lifeguards can give you advice on waves if you’re planning to go into the water.Northern lights seen shining from plane window 00:24 If the arrow is parallel to or pointing away from land, the wave height is likely to be lower If the arrow points towards land, most of the waves’ power will reach It indicates how sheltered theīeach will be from these waves. The arrow shows the average direction of the waves 1-2 miles out to sea. Lifeguards can give youĪdvice on waves if you’re planning to go into the water. Period (more than 10 seconds) means the waves at the beach may be more powerful. This is the average number of seconds between one wave and the next, 1-2 miles out to sea. Read more about calculating the expected height of the waves at the beach. Water, keep an eye on the waves to stop you or your belongings being swept away. Individual waves out to sea or at the beach can be higher than this number. This is the average height of the waves, 1-2 miles out to sea. 11 Extreme - Avoid being outside during midday hours.
8-10 Very high - Spend time in the shade between 11am and 3pm. 6-7 High - Seek shade during midday hours, cover up and wear sunscreen. 3-5 Moderate - Take care during midday hours and do not spend too much time in the sun unprotected. No risk of UV - It’s safe to stay outside.
UV exposure index and the protection required to help keep you safe: The higher the percentage of humidity, the wetter it will feel outside. If there is a lot of water vapour, the humidity will be Humidity is the amount of water vapor in the air. Visibility measures the distance at which an object can be clearly seen. Read more about how wind will affect you at the beach. The number is the average wind speed.īeware of offshore winds if you are using inflatables, paddle boards or kayaks. If the arrow points from land to sea, the wind The arrow shows the direction of the wind (up is north). The number represents the average wind speed expected at that time. The letters show the direction the wind is blowing The arrow shows the direction the wind is blowing. Strong winds are shown in bold for speeds of 29 mph or more. Wind gust shows the highest wind speed that you should encounter at that time, as winds peak and Idea of how the temperature will actually feel at the time. You can see the temperature in Celsius orįeels like temperature considers other factors, such as wind speed and humidity. This number shows the air temperature for the time period. Sleet, snow, hail and drizzle) will fall from the sky at a certain time. Chance of precipitation represents how likely it is that rain (or other types of precipitation, such as
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