Chance of 3-day totals
Meat & Livestock Australia October 24, 2023
The chance of 3-day totals forecast maps show the chance of receiving ‘at least’ a given amount of rainfall total over three consecutive days. Forecasts are available for 15mm, 25mm, 50mm and 75mm of rain during a one-week or two-week period. Historic data (1960-2019) for chance of 3-day totals is available and accessible. Figure 7 shows a chance of 3-day totals map for the period 21 March to 3 April 2023.
Dr Tim Cowan, USQ, demonstrates using the rainfall burst forecast map in a short video at Rainfall Burst Tutorial
Dr Chelsea Jarvis, USQ, discusses the application of the rainfall burst forecast tool in the cotton, livestock and sugar industries in a short video at Using rainfall burst forecast
Note that the location-specific graphs in the chance of 3-day totals map do not present probabilities or deciles on a three-day timeframe. Instead, the location-specific graphs present data on the outlook for either one week or two weeks when selected in the chance of 3-day total map, as with the chance of extremes map.
Figure 7. Chance of 3-day totals map for Australia for the period of 21 March-3rd April 2023. Source: www.bom.gov.au 16/3/23.