Corona – Definition

Corona

A pastel halo around the moon or sun created by the diffraction of water droplets. The droplets in the cloud, such as cirrostratus, and the cloud layer itself must be almost perfectly uniform in order for this phenomena to occur. The color display sometimes appears to be iridescent.

Halo

The ring of light that seems to encircle the sun or moon when veiled by cirrus clouds. To produce this phenomena, the ice crystals must be in a heterogeneous arrangement to refract the sunlight. The most commonly observed is a halo that forms at a 22° radius, although another one at 46° radius may also be seen.

Diffraction

The result of light waves interfering with other after passing through a narrow aperture, causing them to bend or spread.

Water

Refers to the chemical compound, H2O, as well as its liquid form. At atmospheric temperatures and pressures, it can exist in all three phases: solid (ice), liquid (water), and gaseous (water vapor). It is a vital, life-sustaining part of life on earth.

Cloud

A visible collection of minute particle matter, such as water droplets and/or ice crystals, in the free air. A cloud forms in the atmosphere as a result of condensation of water vapor. Condensation nuclei, such as in smoke or dust particles, form a surface upon which water vapor can condense.

Cirrostratus

A cirriform cloud that develops from cirrus spreading out into a thin layer, creating a flat sheetlike appearance. It can give the sky a slightly milky or veiled look. When viewed from the surface of the earth, these ice crystals can create a halo effect around the sun or moon. This cloud is a good precursor of precipitation, indicating it may occur within 12 to 24 hours.

Service Area

Broward County: Andytown, Bonnie Loch-Woodsetter North, Boulevard Gardens, Broadview-Pompano Park, Broward Estates, Carver Ranches, Chambers Estates Chula Vista Isles, Coconut Creek, Collier Manor-Cresthaven, Cooper City, Coral Springs, Country Estates, Crystal Lake, Dania Beach, Davie, Deerfield Beach, Edgewater, Fort Lauderdale, Franklin Park, Golden Heights, Green Meadow, Hacienda Village, Hallandale Beach, Hillsboro Beach, Hillsboro Pines, Hillsboro Ranches, Hollywood, Ivanhoe Estates, Kendall Green, Lake Forest, Lauderdale-by-the-Sea, Lauderdale Lakes, Lauderhill, Lazy Lake, Leisureville, Lighthouse Point, Loch Lomond, Margate, Melrose Park, Miramar, North Andrews Gardens, North Lauderdale, Oak Point, Oakland Park, Palm Aire, Parkland, Pembroke Park, Pembroke Pines, Pine Island Ridge, Plantation, Pompano Beach, Pompano Beach Highlands, Pompano Estates, Ramblewood East, Ravenswood Estates, Riverland Village, Rock Island, Rolling Oaks, Roosevelt Gardens, Royal Palm Ranches, Sea Ranch Lakes, Southwest Ranches, St. George, Sunrise, Sunshine Acres, Sunshine Ranches, Tamarac, Tedder, Terra Mar, Utopia, Village Park, Washington Park, West Ken-Lark, West Park, Weston, Wilton Manors

Counties: Brevard, Broward, Collier, Hendry, Indian River, Lee, Martin, Miami-Dade, Monroe, Palm Beach, St Lucie

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