RTB Weather Forecast for Wednesday, July 20, 2011

Roatan Weather Forecast

As presented by Radio Roatan, FM 101.1 or www.roatanradio.com

and

CoCoView Resort, www.cocoviewresort.com, 800-282-8932

CoCoView is at 16.3°N Latitude x 86.5°W Longitude

In the

NW Caribbean Sea

Wednesday July 20, 2011

Again, skies will be sunny with some mid to high level cloudiness. Today, the winds will be slightly stronger then yesterday. They will be easterly at 15 to 20 mph. The seas are choppy at 2 to 4 feet in height . Occasionally, winds and seas may be higher, especially very early in the day or late at night. These winds and seas will continue through the weekend.
Another tropical wave is approaching the Western Caribbean at 15 to 20 kts. We should begin to feel its effects late tomorrow and Friday. See figures 4, 5, and 6.

Fig 1 - Forecast Wind Speed, Direction & Precipitation_110720

Fig 2 - Forecast Wind Map for 110720_1500 LT

Fig 3 - Forecast Isobars, Cloud Cover & Precipitation for 110720_1500 LT

Fig 4 - Graphicast

Fig 5 - Tropical Surface Analysis

Fig 6 - Water Vapor, early am_110720

Fig 7 - Caribbean IR Satellite

Fig 8 - Wind Speeds, yesterday at the Roatan Airport

The air temperatures will be in the 80s to the mid 90s (F) or 27 to 32 (C).
At depth, ocean water temperatures are about 82F to 84F or 28C to 29C . Visibility is generally 60 to 80 feet.

The Tropical Weather Outlook

TS Brett and another area of disturbed weather in the North Atlantic continue to head away from the East Coast of the USA. They pose no threat to us. Elsewhere, tropical storm formation is not expected for the next 24 hours.
In Fig 6 above, I have circled two areas of counter-clockwise rotation. Although, not noted in any forecasts, I believe they bear watching for further development.

The Tides:                                                  Moon and Sun

low tide 6:41 am LT                                      Moon Rise –9:58 pm LT

high tide 1:35 pm LT                                                 Moon Set – 9:50 am LT

low tide 6:35 pm LT                                              Sunrise – 5:25 am LT

high tide 12:39 am LT                                               Sunset – 6:22 pm LT