Volcanic Ash Advisory
(Courtesy NHC and VAAC)
Meteorological Services, MBIA
Sunday, 18 April 2021 (8 pm)
La Soufrière volcano, St Vincent:
La Soufrière volcano remains in a continually active state, and additional eruptions ash plumes are possible at the time. The most recent report from the Satellite Analysis Branch indicates that volcanic ash emissions extend within 60nm west and 20nm southwest of the summit. Numerical models forecast little change in wind direction through the next 12 hours.
Observations of Saharan Dust show that there is slight to moderate dust across the Eastern Caribbean. The latest model guidance of Surface Dust Concentration indicates that there is low potential for this slight to moderate dust to persist for the next day or two.
The Volcano remains in a very active state, and additional eruption and ash plumes are possible at any time without warning.
Upper-level winds near St Vincent are moving towards the southeast, so there is a possibility for some ash to reach the state of Grenada.
The Met Office continues to monitor satellite imagery and analyze forecast winds to determine the likelihood of ash intrusion into Grenada. Nonetheless, the following warning has been issued, valid for today and tonight.
- Low potential for ashfall
- Persons with respiratory illnesses should continue to practice the necessary precautions
- Mariners transiting the nearby waters are urged to exercise caution as volcanic ash or floating volcanic debris can be encountered
Next advisory: 8 am, Monday, 19 April
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