SCIENTIFIC ANALYSISEDITORIAL PRESENTATIONTwo Days, Two Destructive Windstorms in West Java
Himawari-9 and GFS analysis of damaging winds in Batujajar and Ciwidey, 13–14 November 2026.
Read the atmospheric analysis ↗INDEPENDENT METEOROLOGICAL INTELLIGENCE · INDONESIA
Understanding the Atmosphere.
Anticipating the Risks.
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Weather Today
Model-based outlook for selected Indonesian cities · next 3 days
Data: Open-Meteo · evaluation, non-commercialIndonesia Weather Forecast Dashboard
Selected-city model guidance · not a nationwide spatial forecast map
INDONESIA · FORECAST AT SEVEN CITIES
City forecasts · no national rainfall field
Jakarta
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Model forecasts are informational, not official warnings. Values depend on forecast initialization and may change. For official warnings, consult authorized agencies.
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Extreme Weather Outlook
Rainfall, thunderstorm and wind-gust signals for the next 24–72 hours at seven Indonesian cities.
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≋Wind gustsPeak 10-m gust
Independent, experimental screening—not an official warning, and not a nationwide hazard map. Model data must load before any assessment is shown.
EDITORIAL ILLUSTRATION
FEATURED SCIENTIFIC ANALYSIS
14 NOVEMBER 2026 · SEVERE CONVECTIVE WEATHER
Two Days, Two Destructive Windstorms in West Java
Two damaging wind events in Batujajar and Ciwidey on consecutive afternoons, examined through Himawari-9 cloud evolution, CAPE and low-level convergence.
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TWI VISUAL WEATHER LAB
Learjet 60 — A 3D Radar Reconstruction
Explore the aircraft's reported flight path in relation to volumetric NEXRAD radar reflectivity. This scientific visualization illustrates atmospheric structure, not a confirmed accident cause.
Research visualization · NEXRAD radar reflectivity (dBZ) · Not direct evidence of in-flight icing, turbulence or accident causation.
25-second research animation · click play to view
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SCIENTIFIC ANALYSISEDITORIAL PRESENTATION
SCIENTIFIC ANALYSISEDITORIAL ILLUSTRATIONTwo Tropical Disturbances near Sumatra
Independent GFS and Himawari-9 analysis of 92B and 96S during 12–14 November 2026.
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SCIENTIFIC ANALYSISEDITORIAL ILLUSTRATIONRepeated Flooding in Northern Sumatra
GFS moisture, 850-hPa winds and NASA IMERG rainfall in Gayo Lues, Aceh Tamiang and Langkat during November 2026.
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SCIENTIFIC ANALYSISEDITORIAL ILLUSTRATIONThe Transition Season and Lightning Threats over Java
The science of lightning, September–November convection, and hydrometeorological risks across Java.
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CASE STUDYEDITORIAL ILLUSTRATIONPadalarang Small-Scale Tornado: Convective Dynamics and Localized Rotation
Himawari-9 and ECMWF analysis of a damaging wind event in West Java, with careful discussion of tornado verification.
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CASE STUDYEDITORIAL ILLUSTRATIONLearjet 60: Icing Potential and Convective Hazards at Cruise Altitude
A cautious GOES-19, NEXRAD and ADS-B reconstruction of the convective environment, without attributing accident cause.
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CASE STUDYEDITORIAL ILLUSTRATIONSenyar 2025: tropical cyclogenesis near the equator
A research focus on vorticity dynamics, atmospheric moisture, and geographic modulation in the Malacca Strait.
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Tropical cyclones, mesoscale convection, severe thunderstorms, and lightning.
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Hydrometeorological hazards and weather-sensitive infrastructure assessments.
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RESEARCH & COLLABORATION
Built on methods. Open to collaboration.
TWI connects atmospheric analysis, scientific writing, and collaborative research. This section highlights selected technical assignments and research leadership experience. Research publications are intentionally not listed at this stage.
Discuss a collaboration ↗01 /Tropical cyclone dynamics
02 /Convective weather & aviation
03 /Rainfall extremes & flood hazards
04 /Applied climate risk
TWI.
ABOUT THE PLATFORM
Independent insight. Scientific responsibility.
Tropical Weather Intelligence is being developed as an independent scientific communication and consultancy platform focused on the tropical atmosphere, extreme weather, and climate-related hazards. It aims to make complex analysis accessible without compromising scientific context.
TWI is independent and is not presented as an official agency forecasting or warning channel.
SELECTED TECHNICAL PORTFOLIO
Applied meteorology. Real-world decisions.
Selected professional projects and scientific work undertaken by TWI’s founder before the creation of the independent platform.
Nuclear facility meteorological hazard assessment
Research on meteorological hazards, vulnerability, and risk relevant to feasibility assessment of a proposed nuclear power plant near Gosong Beach. BRIN–LPDP supported.
Principal Investigator · West Kalimantan, 2022–2024Meteorological site evaluation
Site meteorological data quality control, upper-air observation, hazard characterization, and technical assessment through projects involving Surveyor Indonesia, Renuko, and BATAN.
PI / Meteorological Aspect Leader · Bangka, Serpong and West KalimantanCiliwung Basin flood risk research
Interdisciplinary research on hydrometeorological risks and flood mitigation through river-basin management, supported by NERC, ESRC, Newton Fund, and Indonesian partners.
Co-Investigator · 2019–2021Upper-air and four-dimensional observations
Projects involving upper-air data, radiosonde and GNSS radio occultation, atmospheric monitoring, and extreme-weather studies.
PI / Co-Investigator · 2021, 2023–2025Lightning and convective hazard research
Research experience involving cloud-to-ground lightning, precipitation relationships, storm evolution, and the use of lightning information in weather-hazard analysis.
Scientific research · IndonesiaExperience summaries are presented without confidential project documents, unverified budgets, or implied endorsement by past clients and institutions.
FOUNDER & SCIENTIFIC DIRECTOR
From atmospheric science to real-world impact.
Bridging atmospheric research, operational meteorology, and science-based risk assessment to support informed decisions.
Dr. Deni Septiadi
Founder & Scientific Director · Associate Professor of Meteorology
An Indonesian meteorologist and academic with over two decades of experience in operational weather forecasting, atmospheric dynamics, extreme weather, meteorological risk assessment, and applied scientific projects. He served as Director of the Indonesian State College of Meteorology, Climatology and Geophysics (STMKG) from 2024 to 2026, following earlier responsibilities in academic leadership, student affairs, and institutional cooperation.
His expertise spans tropical atmospheric dynamics, lightning physics and thunderstorm electrification, aviation meteorology, satellite and radar observations, numerical weather prediction, and hydrometeorological hazards.
As a Principal Investigator and Meteorological Aspect Leader, he has contributed to nuclear power plant site evaluation, meteorological safety studies, upper-air atmospheric monitoring, and environmental risk assessments through assignments involving Surveyor Indonesia, Renuko, BATAN, and BRIN-supported research.
His work also includes interdisciplinary flood-risk research in the Ciliwung basin and atmospheric monitoring using radiosonde and GNSS observations.
Through Tropical Weather Intelligence (TWI), he aims to advance independent scientific analysis, strengthen research collaboration, and communicate atmospheric evidence to support science, media, and society.
Professional affiliations are provided for biographical context and do not imply institutional endorsement of TWI.
SCIENTIFIC NETWORK
A collaborative scientific outlook.
TWI intends to invite relevant specialists in atmospheric science, climate, remote sensing, hydrometeorological hazards, and disaster risk to support future collaboration and scientific advice.
Scientific Advisory Board — under development
PLANNEDMembership will be published only after invitations are accepted and roles are agreed. No external appointments are claimed at this stage.
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