Tropical Cyclone Asna Weakens East of Oman

Tropical Cyclone Asna weakened over the northern Arabian Sea east of Oman on Sunday.  At 5:00 p.m. EDT on Sunday the center of Tropical Cyclone Asna was located at latitude 21.4°N and longitude 61.4°E which put the center about 185 miles (300 km) east-northeast of Masirah Island.  Asna was moving toward the southwest at 6 m.p.h. (10 km/h).  The maximum sustained wind speed was 35 m.p.h. (55 km/h) and there were wind gusts to 45 m.p.h. (75 km/h).  The minimum surface pressure was 994 mb.

Tropical Cyclone Asna moved into a large mass of dry air over the Arabian Sea east of Oman on Sunday.  The dry air caused the thunderstorms in Asna’s circulation to dissipate.  Tropical Cyclone Asna still had a well defined low level circulation on Sunday afternoon, but the circulation was very shallow.  Bands of showers and lower clouds were revolving around the center of Asna’s circulation.  However, there were no thunderstorms and there wasn’t any upper level divergence.

Tropical Cyclone Asna will move through an environment unfavorable for intensification during the next 24 hours.  Asna will move over water where the Sea Surface Temperatures are near 28°C.  However, it will remain within the large mass of dry air.  The dry air will prevent the formation of new thunderstorms.  Tropical Cyclone Asna will weaken during the next 24 hours as the low level circulation gradually dissipates.