Further pyroclastic flows occurred from the northern slopes of the dome overnight. Small to moderate sized rockfalls occurred at regular intervals from the late afternoon period through to around midnight and gradually increased in rate of occurrence soon after. A series of pyroclastic flows subsequently developed, peaking between 2:30 and 3:30 am. During the peak of the pyroclastic flow activity four significant emissions occurred lasting at least six minutes each. Judging from the amplitude ratios of the signals recorded on the seismographs it is highly likely that the flows went into the Tuitts Ghaut. The activity has since diminished to a lower level, characterised by regular rockfalls and pyroclastic flows of lower intensity.
The summit region of the volcano is covered by cloud this morning. It has been confirmed that the pyroclastic flow deposits have advanced further down the Tuitts ghaut.
The northern flanks of the volcano are very dangerous because regular pyroclastic flows are occurring on the slope of the dome which overlooks this region. Flows are being channelled down Tuitt's Ghaut and to a lesser extent Mosquito Ghaut. These ghauts join the Paradise ghaut which passes through or near the communities of Harris, Bramble, Bethel, and Farms. As a consequence, the risk to these communities is now high and continues to increase as the flow fronts approach. While the approach has been gradual so far, one cannot rule out the possibility that next partial dome collapse and attendant pyroclastic flow might travel two to four times the distance travelled so far. Such an event would deposit hot material and surge clouds in parts of these communities. There could also be moderate to large pyroclastic flows in the Tar River and White River valleys. Visits to this area should be restricted to those that are strictly essential, and the central corridor should not be used as a route to the airport. Nobody should enter zones A and B, which include Tar River, Long Ground, Whites, St Patrick's and Gingoes.