The whirlwind picks up dust from the ground, hence its name. These whirlwinds, essentially smaller versions of tornadoes, form when there is intense heat at the ground, which causes the air above it to rise, and winds that can cause the rising air to spin. Though they don't have the ferocious, house-lifting winds of a tornado, dust devils can certainly look scary. Years ago haboobs only roamed the southern edge of the Sahara. Often rain is not seen at the ground level as it evaporates in the hot, dry air (a phenomenon known as virga), though on occasion when the rain does persist, the precipitation can contain a considerable quantity of dust (severe cases called "mud storms"). At their strongest, haboob winds can travel at 35-50 km/h (20-30 mph), and they may approach with little to no warning. This wall of sand can be up to 100 km (60 miles) wide and several kilometers in elevation. When this downdraft, or "downburst", reaches the ground, dry, loose sand from the desert settings is essentially blown up, creating a wall of sediment preceding the storm cloud. Elmo’s Fire is created by the soft glow of an electric field generated by a continuous flow of tiny sparks.Ī haboob is a type of intense sandstorm commonly observed in arid regions throughout the world. This occurrence was named the after St Elmo, the patron saint of sailors. This weather phenomenon is luminous plasma that appears like fire on objects, such as the masts of ships or lightning rods, in an area that is electrically charged during a thunderstorm. Spectre of the Broken, first noted by climbers in the Harz mountains of Northern Germany When the shadow of an observer is cast onto aįog bank below it often appears unusually shaped and of large proportions this is the One popular place to see moon bows is at Cumberland Falls in Kentucky, as pictured above. A moon bow is much rarer, only seen at night when the moon is low and full to almost full. It’s not completely understood how they form.Ī rainbow is caused by the Sun shining on moisture droplets, most commonly in a post-rain atmosphere. These odd-shaped clouds are often associated with a storm front, especially one involving a thunderstorm. They are more typically seen closer to the poles and during the equinoxes of the year. Noctilucent clouds are atmospherically high clouds that refract light at dusk when the Sun has already set, illuminating the sky with no seeming light source.Īlso known in the southern hemisphere as the Aurora Australis, the Aurora Borealis are charged particles from the Sun that have reached the Earth’s upper atmosphere and become excited. The belt of Venus is a phenomenon that occurs during dusty evenings when a band of pinkish or brownish sky will appear between the sky and the horizon. Haloes can also form around the Moon, and occasionally around the brighter stars and planets like Venus. Sometimes two or more areas of the circle or arcs surrounding the Sun will be brighter, forming what are called Sun Dogs. Like rainbows, haloes are formed around the Sun due to moisture (in this case ice crystals) being refracted from the Sun’s rays in the upper atmosphere. A Sun ‘ghost’ is actually the color of the bright points of light created by the sun that was deflected by the crystals in high clouds. If the sun really close to the horizon and there are cirrus clouds in the sky, sometimes the sun can appear on both sides reflected too, thus giving the impression of three suns appearing together in the sky. Often, two sun dogs can be seen (one on each side of the sun) simultaneously. It is an atmospheric optical phenomenon primarily associated with the reflection or refraction of sunlight by small ice crystals making up cirrus or cirrostratus clouds. Sun Dogs, Sun Ghost, Belt of Venus,Noctilucent Clouds,Aurora Borealis,Mammatus Clouds, Red Rain, Moon Bows, Colored Moons, St Elmps Fire, Fire Winds, Pyrocumulus Clouds, Lenticular Clouds, Sun Pillars, Diamond Dust, Non-aqueous Rain, Virga, Katabatic Winds, Fire Rainbow, Green Ray, Ball Lightning, Sprites, Jets, and Elves, Snow Rollers, Brockenspectre, Mirages, Ice Fall / Bomb, Giant Hailstones, Sea Monster or Spinning Water, Gravity Wave, Supercell, Dust Storm (haboob), Blue Mo on.Ī sun dog or sundog is a common bright circular (or symmetrical) spot on a solar halo. Let PLANETPALS Teach You About Strange Weather Phenomena and Unusual Natural Occurences
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