Thursday, February 29, 2024

Experimental Climate Monitoring and Prediction for the Maldives – February 2024

                      

HIGHLIGHTS

Monitored: In January, central islands received up to 10 mm of rainfall, while remaining islands received less. North-easterly winds prevailed during the month of January over the northern and central islands of MV. 

Predictions: A transition from El Niño to ENSO-neutral is likely by April-June 2024, with increasing odds of La Niña developing in June-August. Seasonal climate predictions predict a dry condition in the southern islands and a near-normal tendency for the remaining islands from March to May 2024.


Printable Text Summary Part 1 (PDF)

---------------------------Inside this Issue------------------------

  1. Monthly Climatology
  2. Rainfall Monitoring
    1. Daily Satellite derived Rainfall Estimates
    2. Monthly Rainfall derived from Satellite Rainfall Estimate
    3. Monthly and Seasonal Monitoring
  3. Ocean Surface Monitoring
  4. Rainfall Predictions
    1. Weekly Predictions from NOAA/NCEP
    2. Seasonal Predictions from IRI

SUMMARY

Climatology

Monthly Climatology:
In March, northern and central islands receive average rainfall up to 50 mm while southern islands receive up 100 mm of rain. Wind is northeasterly. Usually in April, Southern islands usually receive about 150 mm of rainfall. The wind direction in southern and central islands is westerly and in northern islands, it is northwesterly. Rainfall usually increases up to 200 mm in May in the entire country. The wind direction remains the same but the speed increases.

Figures Part 2 (PDF)

Monitoring

Weekly Rainfall Monitoring:

Date

Rainfall

Northern Islands

Central Islands

Southern Islands

 12th February

TR

80 mm

30 mm

 13th February

-

5 mm

5 mm

 14th February

TR

5 mm

10 mm

 15th February

TR

20 mm

5 mm

 16th February

10 mm

40 mm

10 mm

 17th February

TR

50 mm

20 mm

 18th February

-

TR

5 mm

 19th February

-

5 mm

TR

 20th February

-

20 mm

30 mm

 21st February

 -

130 mm

80 mm

 22nd February

-

5 mm

5 mm

 23rd February

TR

TR

10 mm

 24th February

-

TR

20 mm

 25th February

TR

TR

10 mm

 26th February

TR

TR

20 mm


Monthly and Seasonal Rainfall Monitoring: In January, central islands received up to 15 mm of rainfall, while northern and southern islands received up to 5 mm. 

Monthly Temperature Monitoring:

 

Northern Islands

Central Islands

Southern Islands

T Max

33.40C

33.20C

32.00C

T Min

24.00C

24.40C

23.40C


Dekadal Rainfall Estimates:
             1-10 Feb, Dekadal rainfall estimated as; Northern Islands: 5 mm rainfall 
                                                                  Central Islands: 10 mm rainfall 
                                                                  Southern Islands: 40 mm rainfall 

11-20 Feb, Dekadal rainfall estimated as; Northern Islands: 20 mm rainfall 
                                                                   Central Islands: 200 mm rainfall 
                                                                   Southern Islands: 70
 mm rainfall 

Ocean State Monitoring:

Pacific Seas State February 19, 2024:
As of mid-Feb 2024, moderate-strong El Niño conditions persist in the central-eastern equatorial Pacific, with important oceanic and atmospheric indicators aligning with an ongoing El Niño event that is gradually diminishing. An El Niño advisory from the CPC continues for February 2024, alongside a La Niña watch issued for June to August 2024. Almost all the models in the IRI ENSO prediction plume forecast a continuation of the El Niño event during the rest of the boreal winter and spring of 2024, which rapidly weakens thereafter. ENSO-neutral conditions become the most likely category in Apr-Jun, and May-Jul of 2024. For Jun-Aug 2024, no single category stands out as dominant, with ENSO-neutral and La Niña being almost equally likely. (Text Courtesy IRI)

Indian Ocean Monitoring on 6 - 12 February, 2024
0.50C above average SST was observed around the Maldives.

Predictions
Daily Rainfall Forecast:

Date

Rainfall

Northern Islands

Central Islands

Southern Islands

29th February

TR

40 mm

40 mm

1st March

-

20 mm

20 mm

2nd March

TR

10 mm

TR

3rd March

10 mm

10 mm

-

4th March

10 mm

10 mm

-

5th March

-

20 mm

TR

6th March

-

TR

10 mm


Biweekly Rainfall Forecast:
NOAA/NCEF GFS model predicts higher probability of below-normal tercile by 45% for the southern islands; by 40% for the central islands and near-normal for the northern islands between 2nd - 15th March.  

Seasonal Rainfall and Temperature Forecast:
Below-normal tercile is 40% probable in the southern islands; and near-normal tercile probable in the northern and central islands from March-April-May 2024 and seasonal rainfall forecast is higher likelihood of normal range for the Maldives.

MJO Index: 
The MJO is predicted by NOAA CPC to be in phases 3 and 4 in the next two weeks (27 Feb – 12 Mar 2024). MJO in phase 3 usually enhances the rainfall over the Maldives.  

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