Despite weakening from a once powerful Category 5 cyclone with sustained winds of 160 mph to a much weaker Category 1 storm as it neared the Arabian Peninsula, Gona is still being blamed for at least 28 fatalities in the region mostly as a result of flooding. In Oman's capital city of Muscat, torrential rains turned streets into rivers of water in this normally arid region. In addition to the 25 confirmed fatalities, 26 persons are still missing in Oman. Iran reported 3 deaths as a result of the storm.

The Tropical Rainfall Measuring Mission or TRMM satellite came into service in November of 1997 with the primary mission of measuring rainfall in the Tropics using a combination of passive microwave and active radar sensors. The TRMM- based, near-real time Multi-satellite Precipitation Analysis (MPA) at the NASA Goddard Space Flight Center monitors rainfall over the global Tropics. MPA rainfall totals are shown here for the period 31 May to 7 June 2007 for the Gulf of Oman and the surrounding region. Although the center of Gonu never made landfall in Oman, it came very close to the northeast coastline where it dumped upwards of 200 mm of rain (~8 inches, shown in dark purple). The capital region of Muscat is right on the coast on the northwest edge of the highest amounts. Despite further weakening as it traversed the Gulf of Oman between Oman and southern Iran, Gonu dumped substantial amounts of rain in southern Iran (broad orange area indicating between 3 and 5 inches) with locally heavy amounts of up to 200 mm (~8 inches).

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