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Weather Warnings Nation Wide

Warnings

HOW DOES SAWS CATEGORIZE SEVERE WEATHER WARNINGS?

  1. Severe weather is an extreme meteorological event or phenomenon, which represents a real hazard to human life and property and has potential to cause damage, serious social disruption, or loss of human life
  2. Special Weather Advisory: an alert raising awareness up to 5 days in advance to either expected large scale potential disruptive weather system that could later lead to specific watches/ warning with time, or to less urgent alerts of uncommon conditions
  3. Severe Weather Watch: an alert calling for preparedness to weather hazard that most likely will occur within 1 to 3 days and that could lead to disruptive and disastrous conditions
  4. Severe Weather Warning: an alert calling for the reaction due to a very high certainty of a severe weather hazard that is already occurring or imminent within 24 hours and that could lead to disruptive and disastrous conditions

Severe Weather Watches/Warnings

(Watch: Amber - be prepared) (Warning: Red - Take action)

1-3 days in advance, could be the consequence of intense large weather system

  1. Disruptive Snowfalls
  2. Heavy Rain
  3. Flash Flooding
    • Heavy Rain leading to Flash flooding(non thunder storm)
    • Localised Flooding (non thunder storm)
  4. Severe Thunderstorms
    • Hail, gusts, tornadoes, local flooding
  5. Sea State (High swell > 6 m)
  6. Strong winds (Gale force)
  7. Veld fire conditions (in collaboration with Forestry)

Special Weather Advisories

(Advisory: Yellow - Be aware)

Up to 5 days in advance, do not escalate to warnings as such

  • Intense large weather systems(whose consequence could lead to warning later):
  1. Tropical cyclones, Tropical depressions, intense cold front, Cut-off lows
  • Less urgent types of alerts:
  1. Extremely hot conditions
  2. High Discomfort value
  3. Heat waves
  4. Strong interior winds
  5. Reduced visibility
  6. Widespread or coastal FOG
  7. Frost (uncommon or first)