Date: 20th October, 2023
Forecaster: Vigil Saltibus/Shemma Joseph
Present weather at Hewanorra Airport is cloudy.
Present weather at GFL Charles Airport is cloudy with light showers.
Present temperature at Hewanorra Airport is 30°C or 86°F.
Last night’s minimum temperature at Hewanorra Airport was 24°C or 75°F.
Relative humidity at Hewanorra Airport is 76%.
Wind at Hewanorra Airport is blowing from the east-northeast at 21 mph or 33 km/h.
Rainfall in the 24-hour period that ended at 8:00 am today:
At Hewanorra Airport: 1.3 mm. At GFL Charles Airport: 2.6 mm.
Total rainfall for the month of October so far:
At Hewanorra Airport: 179.8 mm. At GFL Charles Airport: 71.3 mm.
Sunset today: 5:41 pm. Sunrise tomorrow: 5:55 am.
FORECAST FOR SAINT LUCIA VALID FOR THE NEXT 24 HOURS
Winds will be blowing from between the northeast and east-northeast near 12 mph or 19 km/h today, with gusts near showers. A turn towards the southwest is expected during the night.
Weather: Generally cloudy skies with a few periods of rain, some scattered moderate to heavy showers and isolated thunderstorms.
Residents and motorists in areas prone to flooding and landslides are advised to exercise caution.
MARINE FORECAST FOR SEAS IN A 25 MILE OR 40 KM RADIUS FROM SAINT LUCIA.
Tides for Castries Harbour: Low at 12:02 pm… High at 6:54 pm.
Tides for Vieux Fort Bay: Low at 1:29 pm… High at 8:01 pm.
Seas: Moderate to locally rough with waves and northeasterly to easterly swells 5 to 7 feet or 1.5 to 2.1 metres.
Small craft operators and sea bathers are advised to exercise caution due to locally rough seas and possible Tropical Storm conditions caused by Tammy.
FORECAST FOR THE LESSER ANTILLES
Mostly cloudy skies, with periods of rain, scattered moderate to heavy showers and thunderstorms.
…Tammy becomes a hurricane
Hurricane Tammy will continue to cause cloudiness, periods of rain, scattered moderate to heavy showers and thunderstorms over the Lesser Antilles, during the forecast period.
At 11:00 am today, the center of Hurricane Tammy was located near latitude 14.1 degrees North, longitude 58.6 degrees West or about 165 miles or 265 kilometers east-southeast of Martinique. Tammy is moving toward the west-northwest near 7 mph or 11 km/h, and this general motion is expected to continue through this afternoon. A turn toward the northwest is anticipated by this evening, followed by a north-northwestward and northward turn Saturday night through Sunday night.
On the forecast track, the center of Tammy will move near or over portions of the Leeward Islands tonight and on Saturday, and then move north of the northern Leeward Islands on Sunday. Maximum sustained winds are near 75 mph or 120 km/h, with higher gusts. Gradual strengthening is expected over the next couple of days and Tammy is forecast to remain a hurricane while it moves near or over portions of the Leeward Islands.
Tammy is expected to produce rainfall totals of 4 to 8 inches with maximum amounts of 12 inches over the Leeward Islands and 2 to 4 inches with maximum amounts of 6 inches over the northern Windward Islands.
A Tropical Storm Warning is in effect for most of the Leeward Islands. A Tropical Storm Watch is in effect for Barbados and Martinique. A Hurricane Warning is in effect for Guadeloupe, Antigua and Barbuda, Montserrat, and St. Kitts and Nevis. A Hurricane watch is in effect for Anguilla, St. Maarten, St. Martin and St. Barthelemy.
Interests in the rest of the region are advised to monitor the progress of this system.