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Dust Spreading Across Arabian Sea, Between Oman and India

20.5N 65.2E

May 13th, 2013 Category: Dust Storms

Arabian Sea – May 11th, 2013

Dust can be seen spreading across the Arabian Sea from Oman (left) to India (right). In the full image, the lighter-colored band crossing the image vertically, parallel to the coast of India, is sun glint off the ocean, while the band stretching horizontally between the Arabian Peninsula to India is the cloud of dust.

Dust Blowing Across Oman Towards Iran and Pakistan

22.9N 60.2E

April 8th, 2013 Category: Dust Storms

Arabian Peninsula – April 8th, 2013

Dust blows off the Arabian Peninsula, sweeping across Oman and over the Arabian Sea and Gulf of Oman towards Iran and Pakistan. In Oman, the storm hit Buraimi, Ibri and adjacent areas of the Dhahirah region. The wind was blowing at around 35 knots in Buraimi and over 22 in Ibri after dust storm hit the area.

Dust Over Strait of Hormuz and Gulf of Oman

24.8N 57.3E

January 13th, 2013 Category: Dust Storms

Gulf of Oman – January 12th, 2013

Dust blows off the coast of Iran and over the Strait of Hormuz and the Gulf of Oman. In winter in this region, dust storms are associated chiefly with the passage of westerly depressions. Here, the dust storm may be connected to a local phenomenon known as the “Shamal” (an Arabic word for “north”).

A shamal is defined as sustained winds of 25 knots or greater. Wind direction is almost always northwesterly. The Shamal produces the most widespread hazardous weather known to the region. The winter Shamal is generally characterized by durations of either 24-36 hours or 3-5 days.

This “3-5 Day Shamal” occurs 1-3 times a winter and produces the strongest winds and highest seas found in the Persian Gulf. Over exposed Persian Gulf waters, sustained winds have reached 50kt which have produced 15+ ft seas. The 3-5 day shamal arises from the temporary stagnation of a 500mb short wave over or just east of the Strait of Hormuz , or from the establishment of a mean long wave trough stalling approximately 56E. Persistent dust and sandstorms occur.

Dust that restricts visibility is confined to the coasts and the immediate offshore areas of the Gulf of Oman during a strong “Shamal”. Visibility drops as low as 3-5NM. Worst conditions are found at the mouths of rivers or canyons. Dust settles rapidly once winds drop below 15kt.

Rows of Dust Over Gulf of Oman – December 31st, 2012

24.8N 58.9E

December 31st, 2012 Category: Dust Storms, Image of the day

India and Pakistan – December 28th, 2012

Dust blows off the coast of Iran in long, parallel rows, across the Gulf  of Oman, to the Arabian Peninsula (click here for more images). The dust remains east of the Strait of Hormuz; to the west, sediments can be seen in the Persian Gulf lining the coast of the United Arab Emirates and west of the island of Qeshm.

Dust Blowing Over Irani Coast and Gulf of Oman

25.4N 58.8E

December 13th, 2012 Category: Dust Storms

Iran – December 13th, 2012

Dust blows off the southern coast of Iran and over the Gulf of Oman. Sediments can be seen through the dust, hugging the Irani coastline in several places, while the Omanese coastline to the south is mostly clear.

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