Cloud PointField Guide

Low cloud

Everything that forms near the ground, fog included.

Low — below 2,000 m17

Cumulus — The classic fair-weather puffballCumulusIFair weather when small; if growing tall, possible showers laterMorning Glory — A 1,000 km tube of cloud glider pilots surfMorning GloryVMarks a passing atmospheric wave; often a sudden wind shift as it arrivesFog — Cloud at ground levelFogIXDamp, calm conditions and poor visibility, often clearing as the day warmsStratocumulus — The world's most common cloud, in lumpy rollsStratocumulusXIGenerally settled weather; often clears by afternoonRainbow — Sunlight unravelled by falling raindropsRainbowXIIShowers nearby with sunshine - a sign of scattered, passing rainShelf cloud — The menacing wedge on a storm's leading edgeShelf cloudXIVA thunderstorm's gust front - strong straight-line winds and rain imminentDiamond dust — Glittering airborne ice that makes halos at eye levelDiamond dustXXIIIVery cold, clear, calm airFogbow — A ghostly white rainbow in fogFogbowXXIVFog or thin cloud with a low sun behind youSteam Fog — When the sea appears to smokeSteam FogXXVIICold air over much warmer water; calm and clearStratus — The grey blanket that becomes fogStratusXXXIGrey, overcast conditions; possible light precipitationWall Cloud — The lowered base where tornadoes are bornWall CloudXXXIIA severe storm's updraught - a possible tornado if it begins to rotateCloud Streets — Parallel cloud rows along the windCloud StreetsXXXVIIICold air streaming over a warmer surface; brisk, fair but coolCataractagenitusXXXIXLocalised to large waterfalls; no broader weather significanceFractus / Scud — Ragged shreds racing beneath a stormFractus / ScudXLIVRain falling nearby; gusty, showery conditionsMoonbow — A rainbow made by moonlightMoonbowXLVRain or spray opposite a bright moon at nightLight Pillars — Vertical beams above ground lights on frozen nightsLight PillarsXLIXVery cold, calm night with ice crystals suspended in the airGreen Flash — The split-second green at the horizon at sunsetGreen FlashLIIClean air over a low, distant horizon at sunset or sunrise