Key Highlights
- Low pressure over bay of bengal formation confirmed by IMD on October 21, 2025, bringing light to moderate rainfall for three days across Odisha
- Yellow warning issued for 10 districts including Puri, Khurda, Ganjam, and Gajapati with thunderstorms and gusty winds reaching 30-40 kmph
- Low pressure over bay of bengal system expected to intensify into depression within 48 hours but poses no major threat to coastal regions
Opening Overview: Weather System Development Triggers State Alert
The low pressure over bay of bengal confirmed by the India Meteorological Department on Monday, October 20, 2025, marks another significant weather development that will influence Odisha’s meteorological conditions through the remainder of October. According to IMD’s evening bulletin, an upper air cyclonic circulation persists over the south Andaman Sea and adjoining southeast regions, extending up to 1.5 kilometers above mean sea level. This atmospheric phenomenon has generated the low pressure over bay of bengal within the predicted 24-hour timeframe, representing a typical October weather pattern for the region.
The low pressure over bay of bengal system indicates measurable precipitation impacts for parts of Odisha, though meteorologists emphasize that no major weather disruption is anticipated. Manorama Mohanty, Director of the Bhubaneswar Meteorological Centre, stated that the state will likely experience low to moderate rainfall for the next three days due to changing wind directions associated with the low pressure over bay of bengal formation. This weather system continues the pattern of intermittent atmospheric disturbances that have characterized the post-monsoon period across eastern India, with the low pressure over bay of bengal representing the latest in a series of October developments.
Warnings over the State.
— Meteorological Centre, Bhubaneswar (@mcbbsr) October 21, 2025
Day-1 to Day-5 : Thunderstorm/Lightning & Gusty Surface Wind warning.
Day-6 & Day-7 : No Warning.#thunderstorm #Odisha pic.twitter.com/D1yyPiQk98
Meteorological Analysis: System Formation and Movement Patterns
- Formation Timeline: Upper air cyclonic circulation evolved into low pressure over bay of bengal as of October 21, 2025, extending 1.5 km above mean sea level
- Intensification Process: Low pressure over bay of bengal expected to strengthen into depression over central regions within 48 hours
The low pressure over bay of bengal reveals a systematic progression of atmospheric conditions that meteorologists have been monitoring since October 17, 2025. Official IMD bulletins indicate that the cyclonic circulation system maintained consistent characteristics while gradually organizing over the warm waters, ultimately forming the low pressure over bay of bengal as predicted. According to the Regional Meteorological Centre Bhubaneswar, this weather pattern represents a typical October phenomenon where thermal contrasts between land and sea masses create favorable conditions.
Dr. Manorama Mohanty’s analysis suggests that the low pressure over bay of bengal system’s west-northwestward movement will bring it closer to the Indian coast, potentially affecting weather patterns across multiple states. The meteorological data indicates that while the low pressure over bay of bengal will intensify into a depression over the central parts of the south bay region, its trajectory and strength characteristics suggest minimal direct impact on Odisha’s coastal and interior regions. This assessment is based on comprehensive atmospheric modeling that tracks wind patterns, sea surface temperatures, and pressure gradients associated with the low pressure over bay of bengal development.
The official documentation shows that similar lower pressure over bay of bengal systems during October typically follow predictable paths, with most maintaining their intensity over oceanic areas before either dissipating or making landfall along the Tamil Nadu and Andhra Pradesh coastlines. Current satellite observations and numerical weather prediction models support this trajectory analysis for the low pressure over bay of bengal, indicating that Odisha will experience peripheral effects rather than direct system impact.
Regional Impact Assessment: District-Wise Weather Warnings
- Yellow Warning Districts: Puri, Khurda, Nayagarh, Ganjam, Gajapati, Boudh, Kandhamal, Rayagada, Koraput, and Malkangiri face thunderstorm alerts due to low pressure over bay of bengal influence
- Wind Speed Projections: Gusty surface winds expected to reach 30-40 kmph during thunderstorm activity influenced by low pressure over bay of bengal system
The lower pressure over bay of bengal includes specific district-level advisories that highlight varying degrees of weather impact across the state’s geographic regions. Coastal districts including Puri, Khurda, and Ganjam are expected to experience the most pronounced effects due to their proximity to the low pressure over bay of bengal moisture source. The meteorological analysis indicates that southern interior districts such as Rayagada, Koraput, and Malkangiri will also witness notable thunderstorm activity due to orographic lifting effects from the low pressure over bay of bengal system.
Regional weather stations have recorded preliminary atmospheric changes that support the lower pressure over bay of bengal predictions, with humidity levels increasing across coastal areas and wind patterns shifting to north-easterly directions. The Bhubaneswar Meteorological Centre reports that local heating combined with moisture influx from the low pressure over bay of bengal creates ideal conditions for convective activity, particularly during afternoon and evening hours. Temperature gradients recorded across the state show variations that align with the lower pressure over bay of bengal models, suggesting accurate system tracking and impact assessment.
The data indicates that northern and western districts will experience relatively stable conditions despite the lower pressure over bay of bengal presence, with dry weather prevailing in areas such as Balasore, Bhadrak, and Jajpur during the forecast period. This geographic distribution pattern reflects the typical influence of lower pressure over bay of bengal weather systems, which primarily affect coastal and southern regions while leaving northern districts largely unaffected.
Safety Protocols and Public Advisory Measures
- Agricultural Precautions: Farmers advised to protect harvested crops and provide adequate drainage in fields during low pressure over bay of bengal influenced weather periods
- Public Safety Guidelines: Citizens recommended to avoid outdoor activities during lightning events and seek secure shelter during gusty wind conditions associated with low pressure over bay of bengal impacts
The comprehensive safety recommendations have been developed in coordination with disaster management authorities and agricultural extension services regarding the low pressure over bay of bengal system. State meteorological officials emphasize that while the current low pressure over bay of bengal poses no major threat, standard precautionary measures should be implemented to minimize potential impacts from thunderstorms and localized heavy rainfall. The advisory specifically highlights the need for lightning safety protocols, given the expected thunderstorm activity associated with the low pressure over bay of bengal development across multiple districts.
Agricultural communities receive targeted guidance regarding the lower pressure over bay of bengal framework, with recommendations for crop protection and field management during the forecast period. The meteorological centre advises farmers to ensure proper drainage systems are functional and to secure harvested produce in covered areas to prevent damage from gusty winds and moderate rainfall associated with the low pressure over bay of bengal system.
Public transportation and commercial sectors also receive specific guidance through communication channels, with emphasis on monitoring weather conditions before undertaking travel or outdoor commercial activities during the low pressure over bay of bengal influence period. The meteorological department’s coordination with local authorities ensures that information reaches relevant stakeholders through multiple communication platforms, including social media, radio broadcasts, and official bulletins regarding the low pressure over bay of bengal developments.
Closing Assessment: October Weather Pattern Implications
The comprehensive analysis for October 2025 demonstrates the meteorological department’s enhanced capability to track and predict low pressure over bay of bengal weather systems with increasing accuracy. Current atmospheric observations align closely with seasonal patterns typical of post-monsoon periods, when temperature differentials between land and ocean create favorable conditions for low pressure over bay of bengal formation. The data suggests that while this particular low pressure over bay of bengal system will bring measurable impacts to the state, the overall threat level remains manageable through appropriate preparedness measures.
Meteorological trends indicate that October 2025 continues the pattern of intermittent low pressure over bay of bengal system formation, with most systems following predictable trajectories that minimize direct impact on Odisha’s coastal regions. The framework provides valuable lead time for communities and authorities to implement necessary precautions, highlighting the continued importance of weather monitoring and public communication systems regarding low pressure over bay of bengal developments. As atmospheric conditions evolve through the remainder of October, the meteorological department maintains its commitment to providing timely updates and detailed forecasts that support informed decision-making across all sectors of Odisha society.
