Cirrostratus – Definition

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.

Cirriform

Clouds composed of small particles, mostly ice crystals. Because the particles are fairly widely dispersed, this usually results in relative transparency and whiteness, often producing a halo phenomena not observed in other clouds forms. These clouds generally have bases above 20,000 feet in the mid-latitudes, and are classified as high clouds. They include all varieties of cirrus, cirrocumulus, and cirrostratus clouds.

Cirrus

One of the three basic cloud forms (the others are cumulus and stratus). It is also one of the three high cloud types. Cirrus are thin, wispy clouds composed of ice crystals and often appear as veil patches or strands. In the mid-latitudes, cloud bases are usually found between 20,000 to 30,000 feet, and it is the highest cloud that forms in the sky, except for the tops, or anvils, of cumulonimbus, which occasionally build to excessive heights.

Sky

The vault-like apparent surface against which all aerial objects are seen from the earth.

Ice Crystals

Precipitation in the form of slowly falling, singular or unbranched ice needles, columns, or plates. They make up cirriform clouds, frost, and ice fog. Also, they produce optical phenomena such as halos, coronas, and sun pillars. May be called “diamond dust.”

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.

Precipitation

Any and all forms of water, liquid or solid, that falls from clouds and reaches the ground. This includes drizzle, freezing drizzle, freezing rain, hail, ice crystals, ice pellets, rain, snow, snow pellets, and snow grains. The amount of fall is usually expressed in inches of liquid water depth of the substance that has fallen at a given point over a specified time period.

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

412 Sunshine Blvd
Tavernier,
FL
33070