Instant Wind Forecasting by Alan Watts

By Alan Watts

Fast Wind Forecasting is a short reference consultant for all who paintings or play open air even if dinghy, coastal or offshore sailors, fishermen, motorboaters, farmers, golfers, walkers or pilots. it's going to support them make significant predictions in keeping with the glance of the sky and the texture of the day. This booklet is the ideal significant other to Alan Watt's overseas bestseller fast climate Forecasting. Its simply available structure and progressive presentation has proven the author's acceptance as a layman's meteorologist. 'Still the easiest ebook of its type round' All At Sea 'Worthwhile having both at domestic or on board' The Gaffers Log

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Barometer may show signs of in the normal way with warm fronts arresting its fall Immediate sign is passing trailing wisps of cloud almost on the deck. Lightening sky behind the murk Frontal veer (probably sharp) Passage of a cold front Cold front: warm sector weather with much cloud, at all levels. High humidity. Poor visibility, even fog Unusual for no form of break before an active cold front clears across. However, sudden showers mixed with rain makes cold front suspect Immediate signs: darker cloudline.

Event is fairly rare in temperate latitudes. Less rare further south. Light on-shore breeze can be established up to 20–30 miles offshore. Light airs in evening or near calm followed by re-established gradient wind direction. 49 Wind shift events of the typical sea breeze day • LOCAL WINDS Wind along the coast On this page are the shifts that usually occur when the morning wind is within 20° either side of the main sea coastline. The events are those associated with sea breeze coasts that are only indented by headlands and inlets, bays etc to a depth of about 10 miles and have a flattish hinterland that rises to coastal hills.

Use the forecasts as well as observation More difficult to assess than for the warm front but usually around S. Wind speed can be moderate or even less when the occlusion is old Tactics as for cold front but expect the whole shifting phase to occupy a relatively long time – possibly an hour or two The shift at an occlusion is like a rather extended form of the cold front. Occlusions near centres of depressions are far more likely to produce intense shifts than others Can be any one of many different directions.

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