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Belize Weather Forecast: August 21, 2021

General Situation:
Ambergris Caye: Conditions this morning by Elbert just before or after this post!
Belize NMS: Present Condition: Heavy cloud cover in the south this morning, much less so in the north. Mostly clear in San Pedro. Moderate east-southeasterly airflow prevails.
Advisories: Operators of small crafts should exercise caution as winds may become gusty at times.
24-hour forecast: Mostly sunny today with only isolated showers, along with isolated thunderstorms developing inland this afternoon. Cloudy at times tonight with a few showers or thunderstorms mainly over the south.
Winds: E-SE, 10-20 kts
Sea State: Moderate
Waves: 4-6 ft
Sea Surface Temperature (°f): 87
Outlook: (Sun & Sun night) Cloudy with some showers or thunderstorms over most areas, but especially over the north during Sunday then over the south Sunday night.
Sargassum Forecast from August 17 to August 25: Satellite imagery suggests that sargassum concentration has decreased slightly over the area. However, there is a low to medium chance of additional sargassum mats drifting into the area during the next few days. San Pedro has a medium probability and a moderate impact.
Tropical Weather Outlook: At 3:00am Tropical Storm Henri was centered near latitude 33.1N, longitude 73.2W or about 195 miles SE of Cape Hatteras, North Carolina. Hurricane Grace was located near latitude 20.5N, longitude 97.8W, or about 45 miles SW of Tuxpan, Mexico. Click for more of the tropical weather outlook...

Marine Conditions:

The Caribbean Sea

There are three tropical waves in the Atlantic, and two in the Caribbean.

Convergence associated with distant Hurricane Grace over mainland Mexico is supporting scattered moderate convection over the Gulf of Honduras and adjacent land areas. Similar convection is noted over the western Caribbean from 12N to 16N between 81W and 86W, including over portions of Honduras and Nicaragua. Scattered moderate convection is also noted south of Hispaniola from 15N to 17N and between 72W and 74W. The rest of the basin has isolated to scattered showers on mainly moderate to fresh trades, except for gentle to moderate trades in the southwest Caribbean south of 11N, and also north of 18N and east of 85W. Seas of 3 to 5 ft dominate the basin, locally to 6 ft in the Gulf of Honduras.

For the forecast, moderate to fresh trade winds will dominate, except localized pulses of strong winds are possible in the Gulf of Honduras through tonight. Early next week, fresh to strong winds will develop over the central Caribbean.

For more information, check the Daily Tropical Weather Outlook.

Climate Prediction Center's Central America Hazards Outlook

Belize National Emergency Management Organization (NEMO)

Ambergris Caye:
https://www.wunderground.com/weather/bz/san-pedro

Philip S W Goldson International Airport:
https://www.wunderground.com/weather/bz/belize/MZBZ?cm_ven=localwx_today

Belmopan:
https://www.wunderground.com/weather/bz/belmopan/17.26%2C-88.78

Caye Caulker:
https://www.wunderground.com/weather/bz/caye-caulker-village

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

At 4 a.m. CDT, the center of Hurricane Grace was located inland over Mexico about 45 miles (70 km) southwest of Tuxpan, Mexico. Grace is moving toward the west near 14 mph (22 km/h), and this general motion is expected to continue through tonight. On the forecast track, Grace will continue to move farther inland and reach central Mexico later today.

Maximum sustained winds have decreased to near 110 mph (175 km/h) with higher gusts. - a category 2 hurricane on the Saffir-Simpson Hurricane Wind Scale. Hurricane-force winds extend outward up to 30 miles (45 km) from the center and tropical-storm-force winds extend outward up to 150 miles (240 km). The estimated minimum central pressure is 970 mb (28.64 inches). Rapid weakening is expected as Grace moves inland over the mountains of central Mexico today, and the hurricane is forecast to weaken to a tropical storm by this afternoon, and then dissipate on Sunday.

Tropical Storm Henri is pushing to the north and is expected to accelerate northward. Henri will create increased swells and rough surf over much of the eastern coast of the United States through the weekend.

We are also watching a few tropical waves, either across the tropical Atlantic or emerging off the African coast this week, but development with these seems unlikely at this time.