AUGMENTED BANGKOK SITUATIONAL MAP

Buildings, roads, canals

OpenStreetMap contributors (ODbL), downloaded 26 Sep 2026 14:30 via the Overpass API. 115k buildings, 18k road segments. Heights come from OSM where tagged (12%); the rest are estimated from footprint size and drawn at 2×. Towers ≥ 80 m (real OSM heights) are drawn as holograms.

Water-depth sensors

BMA Drainage & Sewerage Dept, weather.bangkok.go.th/flood, reading of 26 Sep 14:50. 236 sensors, 78 wet. Step-type sensors report 5/10/15/20 cm steps.

Rain gauges → clouds & rain

BMA Drainage & Sewerage Dept, weather.bangkok.go.th/rain, reading of 26 Sep 15:05. 122 gauges, interpolated: cloud density follows the 3-hour total, rain streaks the 1-hour total.

SOS & flood reports

Traffy Fondue (BMA), public API, reports from 25 Sep to 26 Sep 14:53. Sorted into SOS types by Thai keywords; report text and house numbers are left out for privacy.

Traffic incidents

iTIC Foundation / Longdo event feed, active at 26 Sep 16:05: car breakdowns and flood reports. Road-speed traffic needs an iTIC member key and isn't shown.

Traffic flow

iTIC / Longdo traffic overlay, sampled 26 Sep 16:06 along OSM main roads (58,600 segments): blue = light, yellow = moderate, red = heavy. City traffic index 5.5 / 10 from traffic.longdo.com.

Status levels

SAFE · CAUTION · WARNING · DANGER. Rain uses the Thai Meteorological Department's 24-hour classes (<10 light, 10–35 moderate, 35–90 heavy, >90 mm very heavy). The other bands are this map's own, not official: open SOS <50 / 200 / 500; sensors wet <5 / 15 / 30 %; deepest water <15 / 30 / 60 cm, normal = 0–5 cm (a dry road up to puddles; a definition, not a historical average); bands after the US National Weather Service's Turn Around Don't Drown guidance (≈15 cm stalls most cars, ≈30 cm can float them, ≈60 cm sweeps most vehicles away); traffic index <3 / 5 / 7.

Temperature & wind

Open-Meteo current conditions at 16:45 on a 5 × 5 grid over Bangkok (model nowcast, CC BY 4.0). Streaks move with the wind; the sheet is coloured from the coolest to the warmest point on the grid.

Warning feed

Headlines from France 24, CNN, Khaosod English, Bangkok Biz News and Komchadluek (26 Sep), summarised in our own words and linked to the source, plus iTIC / Longdo user incident reports from the last hour. Collected at 16:50; not auto-updating.

Direction arrows

White arrow: average 10 m surface wind (Open-Meteo, 16:45). Blue arrow: steering wind at 700–850 hPa, which is roughly how rain clouds drift (Open-Meteo, 17:00). A guide, not a rain forecast.

Flood watch

This map's own estimate, not an official forecast. Each 2 km cell is scored on the last 3 h of rain (40%), the 24 h total (30%) and rain 6 km upwind of the cloud drift (30%); places where a sensor already reads ≥15 cm are skipped. The six highest-scoring, separate areas are shown.

BTS / MRT

Rail lines and stations from OpenStreetMap. BTS, Gold Line and Airport Rail Link are drawn raised on pylons; MRT lines are drawn below ground.

Roads to avoid

BMA advisory of 26 Sep, as reported by Nation TV and Thairath. 19 of the 23 named roads are known; each is lit end to end.

Stalled vehicles, Ratchadaphisek

Bangkok Biz News, 26 Sep: about ten cars and motorbikes. A news report, not an official count.

Eastern Bangkok

Bangkok Post, 26 Sep: 15 main roads deeply flooded.

Snapshot, not a live feed. Positions from the news are approximate.