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Mean annual rainfall in the country ranges from 700 to 5,000 mm (28 to 197 in) although most places in Vietnam receive between 1,400 and 2,400 mm (55 and 94 in). [1]: 33 Bạch Mã National Park is the wettest place in Vietnam, which annual precipitation is 3,500 mm (140 in) and up to 8,000 mm (310 in) at the 1,448-metres tall summit. [13]
Although the amount of water is comparably high, the distribution is uneven in time and in space. The rainy season lasts 4–5 months and during this time 75-85% of the total volume of precipitation occurs. The water availability in Vietnam is supposed to be 830-840 billion m 3 annually from which approximately 37% is generated on Vietnamese ...
Precipitation reached at 747 mm (29.4 in) in Đồng Hới, the record since 1955. [34] 37 people died from the storm. November 5, 2016 — A tropical depression caused heavy rainfall and flooding over the central and southern provinces of the nation. It is said that it has seen the worst flooding in 5 years at that time. [35]
Operation Popeye / Sober Popeye (Project Controlled Weather Popeye / Motorpool / Intermediary-Compatriot) was a military cloud-seeding project carried out by the U.S. Air Force during the Vietnam War in 1967–1972.
The highest recorded rainfall in a single year was 22,987 mm (904.9 in) in 1861. The 38-year average at Mawsynram, Meghalaya, India is 11,873 mm (467.4 in). [27] Lower rainfall maxima are found on the Mediterranean and Black Sea coasts of Turkey and the mountains of Tajikistan.
These numbers were close to the 10-year average for the 1982–1991-time frame. [9] However, these errors have decreased to near 50-100-150 as NHC forecasters become more accurate. The "danger area" to be avoided is constructed by expanding the forecast path by a radius equal to the respective hundreds of miles plus the forecast 34-Knot wind ...
The climate of the ecoregion is Tropical rainforest climate (Köppen climate classification (Af)). This climate is characterized as hot, humid, and having at least 60 mm of precipitation every month. [4] [5] Annual rainfall increases towards the south, averaging 1,500 mm in the north near Hanoi, and reaching 3,000 mm in the south near Huế ...
It belongs to Vietnam Meteorological and Hydrological Administration (VMHA) under the Ministry of Natural Resources and Environment with authority to issue forecasting/warning information for weather, climate, hydrology, water resource, marine weather (i.e. hydro-meteorology) and provide hydro-meteorology services. [1]