Seasonal Monitoring
The 4 Panels below shows the variation by dekadal (3 times a month) and the map shows anomalies for the Maha Season 2019 starting from the month of September.
- Figure 1: Maha Season 2019 anomalies for each month.
- Figure 2:Cumulative rainfall during Maha Season 2019 compared to the average of the past 16 years.
- Figure 3 : Rainfall deficits or excess by dekadal.
- Figure 4 : 3 Per month (dekadal) Rainfall during Maha Season (3 months) in 2019.
Figure 1- Maha Season 2021 anomalies for each month.
Figure 2- Cumulative rainfall during Maha Season 2021 compared to the average of the past 16 years.
Figure 3- Dekadal (10-Day) rainfall during Maha Season 2021-2022 compared to the past average. The blue bars show above-average rainfall anomalies and brown bars shows below average rainfall anomalies.
Figure 4- Dekadal (3 per month) rainfall during Maha Season in 2019.
Comparison of the current rainfall during the past 6 years in Sri Lanka.
The 3 Panels below shows the variation by dekadal (3 times a month) and the map shows anomalies for the first half of the Yala Season 2018 starting from the month of April.
- Top Left: Yala first half the season 2018 anomalies for each month.
- Top Right: Cumulative rainfall during the first half of the Yala season 2021 (3 months) compared to previous years.
- Bottom left: Rainfall deficits or excess by dekadal.
- Bottom right: 3 Per month (dekadal) Rainfall during first half of the Yala season (3 months) in 2018.
Yala season first half 2021 anomalies for each month.
Cumulative rainfall during first half of Yala season 2021 compared to the average of the past 15 years.
Dekadal (10-Day) rainfall during first half of the Yala season 2021 compared to the past average. The blue bars show above-average rainfall anomalies and brown bars shows below average rainfall anomalies.
Dekadal (3 per month) rainfall during first half of the Yala season in 2021.
Comparison of the current rainfall during the past 6 years in Sri Lanka.
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The 3 Panels below shows the variation by dekadal (3 times a month) and the map shows anomalies for the first half of the Maha Season 2019/20 starting from the month of October.
- Top Left: Maha first half the season 2017/18 anomalies for each month.
- Top Right: Cumulative rainfall during the Second half of the Maha season 2019 (3 months) compared to previous years.
- Bottom left: Rainfall deficits or excess by dekadal.
- Bottom right: 3 Per month (dekadal) Rainfall during Second half of the Maha season (3 months) in 2020.
Maha season Second half 2018 anomalies for each month.
Cumulative rainfall during Second half of Maha season 2020 compared to the average of the past 15 years.
Dekadal (10-Day) rainfall during second half of the Maha season 2020 compared to the past average. The blue bars show above-average rainfall anomalies and brown bars shows below average rainfall anomalies.
Dekadal (3 per month) rainfall during second half of the Maha season in 2019.
Comparison of the current rainfall during the past 6 years in Sri Lanka.
The 3 Panels below shows the variation by dekadal (3 times a month) and the map shows anomalies for the first half of the Maha Season 2019/20 starting from the month of October.
- Top Left: Maha first half the season 2017/18 anomalies for each month.
- Top Right: Cumulative rainfall during the first half of the Maha season 2019/20 (3 months) compared to previous years.
- Bottom left: Rainfall deficits or excess by dekadal.
- Bottom right: 3 Per month (dekadal) Rainfall during first half of the Maha season (3 months) in 2019/20.
Maha season first half 2017/18 anomalies for each month.
Cumulative rainfall during first half of Maha season 2019/20 compared to the average of the past 15 years.
Dekadal (10-Day) rainfall during first half of the Maha season 2019/20 compared to the past average. The blue bars show above-average rainfall anomalies and brown bars shows below average rainfall anomalies.
Dekadal (3 per month) rainfall during second half of the Yala season in 2019.
Comparison of the current rainfall during the past 3 years in Sri Lanka.
The 3 Panels below shows the variation by dekadal (3 times a month) and the map shows anomalies for the second half of the Yala Season 2019 starting from the month of June.
- Top Left: Yala season 2019 anomalies for each month.
- Top Right: Cumulative rainfall during the second half of the Yala season 2019 (3 months) compared to previous years.
- Bottom left: Rainfall deficits or excess by dekadal.
- Bottom right: 3 Per month (dekadal) Rainfall during second half of the Yala season (3 months) in 2019.
Cumulative rainfall during second half of Yala season 2019 compared to the average of the past 15 years.
Yala season 2019 anomalies for each month.
Dekadal (10-Day) rainfall during second half of the Yala season 2019 compared to the past average. The blue bars show above-average rainfall anomalies and brown bars shows below average rainfall anomalies.
Dekadal (3 per month) rainfall during second half of the Yala season in 2019.
The 3 Panels below shows the variation by dekadal (3 times a month) and the map shows anomalies for the first half of the Yala Season 2019 starting from the month of April.
- Top Left: Yala season 2019 anomalies for each month.
- Top Right: Cumulative rainfall during the first half of the Yala season 2019 (3 months) compared to previous years.
- Bottom left: Rainfall deficits or excess by dekadal.
- Bottom right: 3 Per month (dekadal) Rainfall during first half of the Yala season (3 months) in 2019.
Yala season 2019 anomalies for each month.
Cumulative rainfall during first half of Yala season 2019 compared to the average of the past 15 years.
Dekadal (10-Day) rainfall during first half of the Yala season 2019 compared to the past average. The blue bars show above-average rainfall anomalies and brown bars shows below average rainfall anomalies.
Dekadal (3 per month) rainfall during first half of the Yala season in 2019.
The 3 Panels below shows the variation by dekadal (3 times a month) and the map shows anomalies for the second half of the Maha Season 2018/2019 starting from the month of October.
- Top Left: Maha season 2018/2019 anomalies for each month.
- Top Right: Cumulative rainfall during the second half of the Maha season 2018/2019 (3 months) compared to previous years.
- Bottom left: Rainfall deficits or excess by dekadal.
- Bottom right: 3 Per month (dekadal) Rainfall during second half of the Maha season (3 months) in 2018/2019.
Maha season 2018/2019 anomalies for each month
Cumulative rainfall during second half of Maha season 2018/2019 compared to the average of the past 15 years.
Dekadal (10-Day) rainfall during second half of the Maha season 2018/2019 compared to the past average. The blue bars show above-average rainfall anomalies and brown bars shows below average rainfall anomalies.
Dekadal (3 per month) rainfall during Second half of the Maha season in 2018/2019.
Comparison of the current rainfall during the past 6 years in Sri Lanka.
The 3 Panels below show the variation by dekadal (3 times a month) for the first half of the Yala Season 2019(3 months) in Sri Lanka starting from the month of April.
- Top Left: Cumulative rainfall during the first half of the Yala season 2019 (3 months) compared to previous years.
- Top Right: Rainfall deficits or excess by dekadal.
- Bottom: 3 Per month (dekadal) Rainfall during first half of the Yala season (3 months) in 2019.
Cumulative rainfall during the first half of Yala season 2019 (3 months) compared to the average of the past 15 years.
Dekadal (10-Day) rainfall during first half of the Yala season 2019 compared to the past average. The blue bars show above-average rainfall anomalies and brown bars shows below average rainfall anomalies.
Dekadal (3 per month) rainfall during first half of the Yala season (3 months) in 2019.
The 3 Panels below show the variation by dekadal (3 times a month) for the second half of the Yala Season 2019(3 months) in Srilanka starting from the month of July.
- Top Left: Cumulative rainfall during the second half of the yala season 2019 (3 months) compared to previous years.
- Top Right: Rainfall deficits or excess by dekadal.
- Bottom: 3 Per month (dekadal) Rainfall during the second half of the yala season (3 months) in 2019.
Cumulative rainfall during the second half of yala season 2019 (3 months) compared to the average of the past 15 years.
Dekadal (10-Day) rainfall during second half of the Yala season 2019 compared to the past average. The blue bars show above-average rainfall anomalies and brown bars shows below average rainfall anomalies.
Dekadal (3 per month) rainfall during second half of the Yala season (3 months) in 2019.
The 3 Panels below show the variation by dekadal (3 times a month) for the first half of the Maha Season 2019(3 months) in Sri Lanka starting from the month of October.
- Top Left: Cumulative rainfall during the first half of the Maha season 2019 (3 months) compared to previous years.
- Top Right: Rainfall deficits or excess by dekadal.
- Bottom: 3 Per month (dekadal) Rainfall during first half of the Maha season (3 months) in 2019.
Cumulative rainfall during first half of Maha season 2019 (3 months) compared to the average of the past 15 years
Dekadal (10-Day) rainfall during first half of the Maha season 2019 compared to the past average. The blue bars show above-average rainfall anomalies and brown bars shows below average rainfall anomalies.
Dekadal (3 per month) rainfall during first half of the maha season (3 months) in 2019
