1 / 17

South African Weather Service Presentation

South African Weather Service Presentation. By William. Msimanga. Division: Operations South African Weather Service. Contents. 1. Warning against Severe Weather Alert 2. Damages due to weather related 3. Interpretation of Weather Forecast 4. Seasonal rainfall forecast 5. Summary

adonica
Download Presentation

South African Weather Service Presentation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. South African Weather Service Presentation By William. Msimanga Division: Operations South African Weather Service NFC-PRE-20131017.1

  2. Contents 1. Warning against Severe Weather Alert 2. Damages due to weather related 3. Interpretation of Weather Forecast 4. Seasonal rainfall forecast 5. Summary 6. End NFC-PRE-20131017.1

  3. 1.Warning against Severe Weather Alert NFC-PRE-20131017.1 3

  4. Role Of Weather Early Warning Systems • The objective of early warning: “to empower threatened communities/DMc’s to act in sufficient time and manner to reduce loss of life and damage to property. • Inhlosoyezixhwayisozesimozezuluukwazisaabantuabangathintekaukuze babe nesikhathiesanelesokuzilungiselela, nokuzifihlakanyenempahlayabo, kanjalonokuthathaizinyatheloezifanele. NFC-PRE-20131017.1

  5. SWWS Increasing Urgency through Alert Levels NFC-PRE-20131017.1 5

  6. 2. DAMAGES DUE TO WEATHER RELATED NFC-PRE-20131017.1 6

  7. Power of lightning

  8. Strong winds from TS

  9. Picture of Tornado for Duduza area

  10. 3. Interpretation of Weather Forecast NFC-PRE-20131017.1 10

  11. Interpretation of weather prediction • 30% of rain: means that there is a 30% chance that will rain on your head, anywhere in that area during the period • 60% of rain: means that there is a 60% chance of rain that will fall anywhere you are • 80% of rain: means that there isa 80% chanceof rain that will fall where you are • 80% does NOT mean that the rain will be heavier that 30%, it is just more likely to rain whereyou are

  12. Rainfall chart and interpretation NFC-PRE-20131017.1

  13. 4. Seasonal Rainfall Forecast NFC-PRE-20131017.1 13

  14. November-December-January • There’s an indication of probabilities for above-normal rainfall totals are expected for most parts of South Africa FCAST-PRE-20131017.1

  15. SUMMER RAINFALL REGION The most likely weather-related impacts • Expected Weather: • Typical summer thunderstorms, with severe thunderstorms in places • Consequences: • Moderate risk of localised flooding from heavy downpours • Moderate risk of other thunderstorm related hazards, such as hail, lightning, tornadoes, strong winds Nov, Dec, Jan

  16. 5. Summary • There is an indication that NDJ enhanced probabilities indicated for above normal rainfall • This does not rule out the chances of severe thunderstorms developing across the country, causing significant damages in places • SAWS will continue monitoring the short term weather forecast and issued the weather alerts in case of any developments during the season NFC-PRE-20131017.1

  17. 6. End of Presentation NFC-PRE-20131017.1

More Related