354752.pdf6页

GEN TOC

ENR TOC

AD TOC

Index

23.

SIGNIFICANT WEATHER CHARTS – SYMBOLS

Thunderstorm Tropical Revolving Storm

Rain Showers

Convergence Line Inter–tropical Convergence Line Zone of Maximum Wind Boundary of Area of Clear Air Turbulence Boundary of Cloud or Weather Area Layer or Layered ( normally Cloud)

Snow

Severe Line Squall

Fog

Hail

High

Moderate Turbulence Severe Turbulence

Low Cold Front at the Surface Cold Front Above the Surface Warm Front at the Surface Warm Front Above the Surface Occluded Front at the Surface Occluded Front Above the Surface Quasi–stationary Front at the Surface Quasi–stationary Front Aloft Volcanic Eruption

Clear Air Turbulence

Occasional

Moderate Icing

Frequent

Severe Icing Marked Mountain Waves Widespread Sandstorm or Dustorm Freezing Rain

Overcast

Broken

Scattered

Clear

Rain

Isolated

Drizzle Flight Level of Tropopause

.

The level, direction and velocity of maximum wind is indicated by a broken line with arrows. Each pennant represents 50KT; each line 10KT.

The example above represents a maximum wind of 110KT at FL400

GEN (GENERAL)

A/L 45 effective 24 NOV 05


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