Tehran – According to the Metrology organization, average rainfall is expected to be lower than normal from April 8th to 20th, and normal from April 21st to May 18th.
During the first week (April 8th to 13th), average rainfall will be lower than normal. The accumulated sediment would be 20-70 mm in the central and western Zagros in the northwest of the country, Isna reported.
In the northwest, west, in some of the Caspian Sea and Oman coasts, temperatures usually exceed 1-3°C. In the eastern half of the country, it usually reaches 6-10°C, and in other regions it reaches 3-6°C. Unprecedented high temperatures can be recorded in some areas in the eastern half.
The rainfall is also expected to be lower than usual in the second week (April 14th to 31st). There is a tendency to be normal in some areas of the Caspian Sea and in the northeastern part of the Caspian Sea.
The accumulated precipitation from central Albors to northwest is expected to be between 20 and 50 mm.
Within this week, temperatures are predicted to be typically 3-6°C in the southeast and 3°C below normal in other regions. The highest drop is expected to occur on the coast of the Caspian Sea and on the northwest of the country.
The average rainfall for the third week (April 21-27) is normal and is less than normal. The average temperature on the Caspian coast in the east and southeastern parts of the country is 1-3°C, and in other parts it usually reaches 1-6°C.
The average precipitation from week 4 to 6 is predicted to be less than normal, with temperatures being more balanced and temperature abnormalities estimated at +1°C to +3°C.
According to the measuring agency, approximately 14.5 mm of rain was recorded from the beginning of spring until April 5th, down 28.1% from the long-term average of 20.2 mm.
Rain over 250mm in the previous water
The previous water years (September 22, 2023 – September 22, 2024) ended with a precipitation of 252.7 mm.
The low precipitation of the previous water at the beginning of the year was a concern, but the amount of precipitation improved over time.
Due to years of drought, some states are suffering from water shortages, as increased rainfall did not compensate for the country’s water shortages, the IRNA reported.
A total of 10 states have less rainfall than normal.
According to the latest report, the total recorded rainfall for the previous water fiscal year (ends September 23) was 252.7 mm. This means an increase of 19% compared to the 212.9 mm rain received in September 2022 – September 2023.
It shows a 2% increase compared to the long-term figure of 248.7 mm.
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