Month: May 2017

PUBLIC INFORMATION RADIO PROGRAM: LANDSLIDES

by Shirlian Queeley

This month, there were several small landslides across Montserrat due to a significant rainfall event.

The majority of landslides are triggered by rainfall, but earthquakes, volcanic eruptions, fire, erosion, poor construction practices, and human modification of land may also trigger landslides.

In this edition of the Disaster Management Coordination Agency's (DMCA) radio programme -“PREPARE AND PREVENT”, Director of the Disaster Management Coordination Agency (DMCA) Billy Darroux believes pre-existing factors may have created conditions that make the slopes prone to move from its primary position causing a landslide.

He also explains some of the precautionary measures one should take before, during and after a landslide.

Click below to hear the full interview…

TODAY’S LOCAL WEATHER FORECAST FOR MONTSERRAT VALID UP TO THURSDAY JUNE 1ST, 2017

by Shirlian Queeley

SYNOPSIS: Weak low-level convergence could cause a bit of unsettled weather across the area. Possible rainfall total for the forecast period is 1 to 5 mm (0.04 to 0.20 in).

WEATHER TODAY: Occasionally cloudy with a 60 percent or high chance of brief showers.

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

WINDS: East-northeasterly at 13 to 30 km/h or 7 to 16 knots.

SEAS: Moderate with heights not exceeding 1.5 metres or not exceeding 5 feet.

TODAY’S LOCAL WEATHER FORECAST FOR MONTSERRAT VALID UP TO WEDNESDAY MAY 31ST, 2017

by Shirlian Queeley

SYNOPSIS: A low level ridge of high pressure along with Saharan dust will inhibit showers. Possible rainfall total for the forecast period is 1 to 5 mm (0.04 to 0.20 in).

WEATHER TODAY: Partly sunny and hazy with a 50 percent or moderate chance of showers.

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

WINDS: Easterly at 13 to 28 km/h or 7 to 15 knots.

SEAS: Moderate with heights generally not exceeding 1.5 metres or not exceeding 5 feet.

MONTSERRAT VOLCANO OBSERVATORY (MVO) WEEKLY REPORT FOR THE PERIOD MAY 16 TO 26TH, 2017

by Shirlian Queeley

Activity at the Soufrière Hills Volcano remains low.

The seismic network recorded four volcano-tectonic earthquakes this week.

Several measurements of the SO2 flux were made on 16, 18 and 19 May with the help of a team from the University of Manchester and INGV, Italy. The measurements were made using an ultra-violet spectrometer traversing beneath the gas plume in either the helicopter or a vehicle. A total of 30 traverses were carried out over the three days, giving an average SO2 flux of 232 tonnes/day. This is a provisional result and the data, along with other gas data collected at the same time, is still being analysed. However, it is felt that this estimate is more accurate than the lower values reported in November 2016 and January 2017.

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.

TODAY’S LOCAL WEATHER FORECAST FOR MONTSERRAT VALID UP TO TUESDAY MAY 30TH, 2017

by Shirlian Queeley

SYNOPSIS: Moisture and instability associated with two tropical waves in the vicinity of the islands will maintain unstable conditions across the area. Possible rainfall accumulation is 1 to 5 mm (0.04 to 0.2 inch).

WEATHER TODAY: Mostly Cloudy with a 50 percent or a moderate chance of showers and a slight chance of isolated thunderstorms during the afternoon.

WEATHER TONIGHT: Mostly cloudy with a 40 percent or moderate chance of showers.

WINDS: East to East- Southeast at 17 to 30 km/h or 9 to 16 knots.

SEAS: Slight to Moderate at 0.9 to 1.8 meters or 3 to 6 feet.

TODAY’S LOCAL WEATHER FORECAST FOR MONTSERRAT VALID UP TO FRIDAY MAY 26TH, 2017

by Shirlian Queeley

SYNOPSIS: A weak surface to low level trough could cause some unsettled weather across the area late tonight. Otherwise, dry and dusty air from the Sahara Desert along with a low level high pressure system will continue to suppress showers. Possible rainfall total for the forecast period is 0 to 5 mm (0 to 0.20 in).

WEATHER TODAY: Partly sunny and hazy with a 10 percent or slight chance of showers.

WEATHER TONIGHT: Occasionally cloudy with a 30 percent or a moderate chance of showers after midnight.

WINDS: East-northeast at 11 to 28 km/h or 6 to 15 knots.

SEAS: Moderate with heights generally not exceeding 1.5 metres or not exceeding 5 feet.

MONTSERRAT VOLCANO OBSERVATORY(MV0) WEEKLY REPORT FOR THE PERIOD MAY 12TH – 19TH, 2017

by Shirlian Queeley

Activity at the Soufrière Hills Volcano remains low.

The seismic network recorded two rockfalls and three volcano-tectonic earthquakes this week.

No measurements of the SO2 flux are available since 21 January 2017.

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.

The Hazard Level is 1. There is no public access to Zone V, including Plymouth. Maritime Zones E and W are daytime transit only between sunrise and sunset (boats may sail through the zone but must not stop). Anyone who ignores these restrictions is liable to be prosecuted.

TODAY’S LOCAL WEATHER FORECAST FOR MONTSERRAT VALID UP TO WEDNESDAY MAY 24TH, 2017

by Shirlian Queeley

SYNOPSIS: A ridge of high pressure along with low moisture levels will continue to inhibit shower activity across the Islands.

WEATHER TODAY: Partly sunny and hazy with a low chance of showers.

WEATHER TONIGHT: Fair to partly cloudy and hazy with a low chance of showers.

SPECIAL WARNINGS: Small craft operators and beach-goers should exercise caution.

WINDS: Easterly at 17 to 28 km/h or 9 to 15 knots.

SEAS: Moderate at 1.2 to 1.8 meters or 4 to 6 feet. Small craft operators and beach-goers should exercise caution.

TODAY’S LOCAL WEATHER FORECAST FOR MONTSERRAT VALID UP TO TUESDAY MAY 23RD, 2017

by Shirlian Queeley

SYNOPSIS: A dry and stable mass of air will continue to suppress shower activity across the area today and tonight.

WEATHER: Partly sunny and hazy conditions today and mostly fair skies tonight with a low chance of shower activity.

SPECIAL WARNINGS: Small craft operators and sea bathers should continue to exercise caution.

WINDS: E-ESE at 19-30km/h or 10-16kts.

SEAS: Moderate to locally rough, swells 1.2-1.8m or 4-6ft. Small craft operators and sea bathers should continue to exercise caution.