The Bangladesh Meteorological Department (BMD) has issued a localized weather warning forecasting sudden squalls and thunderstorms across two coastal districts. According to the state meteorological authority, temporary gusts or gales reaching speeds of up to 60 kilometres per hour (kph) are expected to impact these regions by Monday evening, 1 June 2026.
Technical Specifications of the Inland Riverine Warning
The specialized meteorological bulletin, effective from 08:30 BST until 18:00 BST on Monday, focused strictly on the safety of inland river ports and general maritime transit within the affected jurisdictions.
The official alert, signed and validated by senior BMD meteorologist AKM Nazmul Hoque, specified that the atmospheric disruptions will primarily concentrate over the districts of Chittagong and Cox’s Bazar. The meteorological assessment indicates that convective cloud formations will likely generate surface winds blowing from a westerly or north-westerly direction, sustained at speeds between 45 and 60 kph. These high-velocity winds are projected to be accompanied by moderate-to-heavy precipitation and frequent lightning strikes.
Maritime Safety Directives and Port Signals
In response to the deteriorating atmospheric conditions, the Meteorological Office has officially directed the river port authorities within these sectors to hoist Inland Riverine Warning Signal Number One. This cautionary protocol advises operators of small motorized launches, commercial trawlers, and fishing vessels to exercise extreme vigilance while navigating the internal waterways.
Summary of Meteorological Warning Parameters
| Parameter Category | Forecast Data and Directives |
| Valid Operational Window | 08:30 BST to 18:00 BST on Monday, 1 June 2026 |
| Primary Target Jurisdictions | Chittagong District and Cox’s Bazar District |
| Expected Wind Velocity | 45 to 60 kilometres per hour (kph) |
| Prevailing Wind Direction | West / North-Westerly |
| Associated Phenomena | Severe electrical thunderstorms, heavy rain, low visibility |
| Mandatory Port Alert Status | Riverine Warning Signal Number One (Cautionary) |
The regulatory body noted that sudden wind shifts and localized cloud build-ups present operational hazards for river traffic. Consequently, deck officers and vessel crews have been advised to monitor real-time weather updates and remain close to sheltered coastlines until the convective weather front subsides later in the evening.
