Tropics Outlook September 27

Hello everyone! Here is a tropics outlook on September 27 for the Northern Hemisphere.

North Atlantic

• Tropical storm Philippe continues to struggle against dry air and strong wind shear. The storm has slightly weakened to sustained winds of 45 mph (75 km/h). Philippe is expected to head generally west and degenerate to a remnant low later this week.

Image 1: Visible imagery from Tropical Tidbits for Philippe. The storm has a partially exposed center of circulation and displaced convection.

Image 2: 5 day forecast cone from the National Hurricane Center for Philippe. The storm is not expected to bring significant impacts to the Lesser Antilles.

• Convection is becoming more organized around Invest 91L and the disturbance has a 90% chance to become a tropical depression within the next 2 days. The system is probably going to stay out to sea and encounter problems with wind shear.

Image 3: Infrared imagery from Tropical Tidbits for 91L. Deep convection is organizing around the disturbance.

Eastern Pacific

• The area of interest has a 30% chance to develop into a tropical depression within the next 7 days as the disturbance heads west and stays out to sea.

Western Pacific

• The remnants of 13W continue to bring heavy rainfall across parts of Vietnam and Laos. 13W's remnants are expected to track west and eventually dissipate.

• Invest 93W was recently designated just west of the Mariana Islands and has a 30% chance to become a tropical depression within the next 7 days.

Image 4: Visible imagery from Tropical Tidbits for 93W. The disturbance has disorganized convection and should gradually develop for the next few days.