Month: August 2017

ANTIGUA AND BARBUDA METEOROLOGICAL SERVICES IS FOLLOWING THE PROGRESS OF HURRICANE IRMA LOCATED ABOUT 1845 MILES EAST OF THE LEEWARDS ISLANDS. THE SYSTEM IS MOVING WEST-NORTHWEST AT 10MPH AND THIS GENERAL MOTION IS FORECAST THROUGH TO EARLY FRIDAY, FOLLOWED BY A GENERALLY WESTWARD MOTION ON SATURDAY.

HURRICANE IRMA POSES NO IMMEDIATE THREAT TO THE LEEWARD ISLANDS AND BRITISH VIRGIN ISLANDS. HOWEVER, THERE IS EVERY INDICATION THAT THE SYSTEM IS POISED TO BECOME A MAJOR HURRICANE AND SOME PREDICTIONS ARE PLACING IT IN OUR AREA BY LATE TUESDAY OR EARLY WEDNESDAY OF NEXT WEEK.

RESIDENTS SHOULD BE CONCERNED ABOUT THE POTENTIAL IMPACT OF THIS SYSTEM AND IN ADDITION, TO CLOSE MONITORING, SHOULD START REVIEWING THEIR DISASTER PLANS IN THE EVENT THEY ARE REQUIRED.

A west-northwestward motion is expected today and tonight, followed by a generally westward motion on Friday.

Irma is not an immediate threat to land.

The next advisory will be issued at 11 am.

TODAY: Sunny to partly sunny with a low chance of showers.

TONIGHT: Partly cloudy with the chance of showers remaining low.

WINDS: ENE at 15-24 km/h or 8-13kts over land and increasing to near 28 km/h or 15kts over coastal waters.

SEAS: Slight to moderate waves 1.2-1.5m or 4-5ft.

Measurements of the SO2 flux were made using the helicopter on 23 August. A total of nine traverses beneath the plume were carried out, with an average SO2 flux of 438 tonnes per day.

Pyroclastic flows can occur at any time without warning on any side of the volcano, including Gages from where they can travel rapidly into Plymouth. Tracks across the Belham Valley can be destroyed or heavily modified by flash flooding or lahars, and caution should be exercised crossing the valley during and after rainfall.

WEATHER TONIGHT: Partly cloudy with a 20 percent or a slight chance of showers.

WINDS: East-southeasterly at 6 to 15 km/h or 3 to 8 knots with lighter spells at times.

SEAS: Slight to moderate with heights not exceeding 1.2 metres or not exceeding 4 feet. 

TODAY: Partly sunny with a low chance of showers.

TONIGHT AND OVERNIGHT: Cloudy with a moderate chance of showers.

WINDS: ENE at 13-24 km/h or 07-13kts over land and increasing to near 28 km/h or 15kts over coastal waters..

SEAS: Slight to moderate waves 1.2-1.5m or 4-5ft.

SYNOPSIS: A surface trough, stemming from an upper level low pressure system, is expected to cause some instability across the area today; otherwise, relatively stable weather will prevail. The possible rainfall total for the forecast period is 1 to 10 mm (0.04 to 0.40 in).

WEATHER TODAY: Cloudy at times with a 70 percent or a high chance of showers and a 30 percent or moderate chance of thunderstorms.

WEATHER TONIGHT: Partly cloudy with a 30 percent or a moderate chance of showers.

WINDS: East-northeasterly at 7 to 19 km/h or 4 to 10 knots with lighter spells at times.

SEAS: Slight to moderate with heights not exceeding 1.2 metres or not exceeding 4 feet.