Haze Widespread dust in suspension in the air, not raised by wind, at time of obs Dust or sand raised by wind, at time of obs Well developed dust devil(s)
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Cloud development
n o t o b s e r v e d o r n o t o b s e r v a b l e d u r i n g p a s t h o urClouds generally dissolving or becoming less developed during past hourState of sky on the whole unchanged during past hourClouds generally forming or developing during past hourVisibility reduced by smokeHazeWidespread dust in suspension in the air, not raised by wind, at time of obsDust or sand raised by wind, at time of obsWell developed dust devil(s) within past hourDuststorm or sandstorm within sight of station or at station during past hour
F u n n e l c l o u d s w i t h i n s i g h t d u r i n g p a s t h o urSquall(s) within sight during past hourThunder heard but no precipitation at the stationPrecipitation within sight, reaching the ground, near to but not at stationPrecipitation within sight, reaching ground, but distant from stationPrecipitation within sight, but not reaching the groundLightning visible, no thunder heardMore or less continuous shallow fog at station not deeper than 6 feet on landPatches of shallow fog at station not deeper than 6 feet on landLight fog
D r i z z l e n o t f r e e z i n g n o t s h o w e r s d u r i n g p a s t h o u r n o t a t t i m e o f o bsRain (not freezing, not showers) during past hour, not at time of obsSnow (not falling as showers) during past hour, not at time of obsRain and snow (not falling as showers) during past hour, not at time of obsFreezing drizzle or rain (not showers) during past hour, not at time of obsShowers of rain during past hour, but not at time of obsShowers of snow, or of rain and snow during past hour, but not at time of obsShowers of hail, or of hail and rain during past hour, but not at time of obsFog during past hour, but not at time of obsThunderstorm (with or without precip) during past hour, but not at time of obs
H e a v y d r i f t i n g s n o w g e n e r a l l y h i ghSlight or moderate drifting snow, generally highHeavy drifting snow, generally lowSlight or moderate drifting snow, generally lowSevere duststorm or sandstorm, has increased during past hourSevere duststorm or sandstorm, no appreciable change during past hourSevere duststorm or sandstorm, has decreased during past hourSlight or moderate duststorm or sandstorm, has increased during past hourSlight or moderate duststorm or sandstorm, has decreased during past hour
F o g a t d i s t a n c e a t t i m e o f o b s b u t n o t a t s t a t i o n d u r i n g p a s t h o urFog in patchesFog, sky discernable, has become thinner during past hourFog, sky not discernable, has become thinner during past hourFog, sky discernable, no appreciable change during past hourFog, sky not discernable, no appreciable change during past hourFog, sky discernable, has begun or become thicker during past hourFog, sky not discernable, has begun or become thicker during past hourFog, depositing rime, sky discernableFog, depositing rime, sky not discernable
D r i z z l e a n d r a i n m o d e r a t e o r h e a v yDrizzle and rain, slightModerate or thick freezing drizzleSlight freezing drizzle S l i g h t f r e equotesdbs_dbs4.pdfusesText_7