Day: June 20, 2017

TROPICAL STORM BRET BECOMES EARLIEST NAMED STORM SO FAR SOUTH IN THE ATLANTIC – MONTSERRAT CAN EXPECT SHOWERS AND GUSTY THUNDERSTORMS THROUGH TUESDAY

by Shirlian Queeley

An unusually strong system for June will pass through the southern part of the Windward Islands with tropical storm conditions through Tuesday.

The system strengthened into Tropical Storm Bret on Monday afternoon. Since Bret formed prior to June 22, it has become the earliest named storm to form in this part of the Atlantic since official records were kept in 1851.

Because of the compact nature of the storm, adverse conditions are likely to hug the coast of Venezuela, while moving on a westward path through the southern part of the Windward Islands and a portion of the Leeward Antilles.

People on the islands from Trinidad and Tobago to Grenada, St. Vincent and the Grenadines, Barbados, St. Lucia, Margarita and Tortuga can expect showers and gusty thunderstorms through Tuesday.

Bathers and boaters should heed all advisories as seas and surf will be dangerous.

Rain is generally needed on these islands since they receive little rain on an annual basis. However, too much rain can fall too fast and lead to flash flooding and mudslides. Rainfall will average 2-4 inches with locally higher amounts possible.

MONTSERRAT VOLCANO OBSERVATORY (MVO) WEEKLY REPORT FOR THE PERIOD JUNE 9 TO 16TH, 2017

by Shirlian Queeley

Activity at the Soufrière Hills Volcano remains low.

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

Measurements of the SO2 flux were made using the helicopter on 13 June. A total of nine traverses beneath the plume were carried out, with an average SO2 flux of 161 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.

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 JUNE 20TH, 2017

by Shirlian Queeley

SYNOPSIS: A SURFACE HIGH PRESSURE WILL GENERATE A MODERATE TO FRESH TRADE WIND FLOW ACROSS THE AREA. ALTHOUGH THIS WILL INHIBIT SIGNIFICANT SHOWERS ACTIVITIES, FEW PASSING SHOWERS COULD ALSO DEVELOP ACROSS THE ISLANDS.

WEATHER: TODAY: PARTLY CLOUDY TO CLOUDY, WITH A CHANCE OF FEW PASSING SHOWERS. TONIGHT: PARTLY CLOUDY.

SPECIAL WARNINGS: AN ADVISORY IS IN PLACE FOR SMALL CRAFT OPERATORS AND SEA BATHERS MAINLY ON THE NORTHERN SIDES OF THE ISLANDS.

WINDS: E 12-18 KTS OR 22-33KM/H AND REACHING UP TO 22KTS OR 41 KM/H OVER COASTAL WATERS.

SEAS: MODERATE TO LOCALLY ROUGH WAVES 1.5 TO 2.1M OR 5 TO 7 FT. AN ADVISORY IS IN PLACE FOR SMALL CRAFT OPERATORS AND SEA BATHERS MAINLY ON THE NORTHERN SIDES OF THE ISLANDS.