🌡️
Max street temp
47°C
↑ Anna Salai, Salem — danger
🌬️
Coolest street
31°C
↓ Shevaroy Nagar — safe
⚠️
Heat-danger zones
18
↑ 5 new since 10am
🛡️
Routes rerouted
234
↑ saved today via cool route
Street-level heat map — Salem
50m resolution
Live · 3pm
CoolHot
Top heat streets
Right now
Cool corridor alertSafe now
🌳 Shevaroy Nagar — Junction Road
31°C · Tree canopy 65% · Wind 12 km/h
Recommended: Walking / outdoor activity safe until 5pm
Recommended: Walking / outdoor activity safe until 5pm
⚠️ Anna Salai peak heat — 2pm to 5pm
47°C asphalt · Zero tree cover · High UV
Avoid outdoor activity. Use shaded indoor routes.
Avoid outdoor activity. Use shaded indoor routes.
Cool route plannerAvoid heat hotspots
From
To
4.2 km
Cool route distance
3.1 km
Shortest (hot) route
8°C
Temperature saved
🚶♀️
234
Citizens rerouted today
🌡️
7.4°C
Avg temp saved per person
🏥
0
Heat stroke cases today
AI heat risk forecast — Anna Salai, Salem87% accuracy
🤖 AI model: Random Forest on IMD + ISRO LST data
Features: time of day, cloud cover, humidity, wind speed, albedo, tree canopy %, road surface type, historical LST (7 days). Training data: 14 months × 4 cities × 847 street segments. Validation accuracy: 87.3% on held-out test set.
Risk by zone — Salem, 3pm today
Model confidence
Training features used
Time of day, humidity %, wind, cloud cover, albedo, tree canopy, road type, historical LST (7 days)
87.3% validation accuracy
On 847 Salem street segments × 14 months IMD + ISRO data
Data sources (all free)
ISRO Bhuvan LST · IMD weather API · TNPCB air quality · OpenStreetMap roads
Heat alerts — Salem region4 active
🔴
DANGER: Anna Salai — 47°C surface temp
Road surface 47°C · Feels like 52°C · Zero tree cover · Avoid between 12pm–5pm. Heat stroke risk HIGH for elderly and pregnant women.
Now
🔴
DANGER: Omalur Road junction — 45°C
Industrial zone heat trap. Asphalt + metal roofing. Workers at risk. Municipal corp notified for emergency shade kiosk deployment.
18 min ago
🟡
WARNING: Shevapet Market — 41°C
Morning market vendors exposed. Canopy gaps identified. Water kiosk recommended at 3 intersections. Risk: MODERATE.
1 hr ago
🟢
COOL ZONE: Shevaroy Nagar — 31°C
Tree cover 65%. Wind corridor active. Safe for outdoor activity until 5:30pm. Recommended cool rest zone for delivery workers.
30 min ago
18
Danger zones active now
34%
Streets with zero tree cover
₹4.2Cr
Est. shade infra investment needed
Top 6 streets — urgent shade requiredAction needed
Recommended interventions
🏗️ Emergency shade kiosks (3 locations)
Anna Salai KM 2.1 · Omalur Junction · Shevapet Market East. Est. cost: ₹2.4L. Deploy in 7 days.
🌳 Priority tree planting (18 streets)
34 streets have zero canopy. Top 18 flagged. Canopy target: 40% by 2026. Budget: ₹1.8L.
💧 Cool water kiosks (5 points)
AI-identified 5 high-traffic heat points for chilled water stations. Target: daily wage worker corridors.
📱 WhatsApp heat alerts in Tamil
Auto-broadcast to 12,400 subscribers at 7am, 12pm, 3pm daily. Opt-in: thermalmap.tn/subscribe
Tamil Nadu cities — heat intelligence coverage
| City | Streets mapped | Max temp today | Danger zones | Cool corridors | Status |
|---|---|---|---|---|---|
| Salem | 847 | 47°C | 18 | 12 | Live ● |
| Chennai | 2,140 | 44°C | 41 | 28 | Beta |
| Coimbatore | 620 | 39°C | 9 | 18 | Beta |
| Madurai | 480 | 46°C | 22 | 7 | Planned |
| Tiruchirappalli | – | – | – | – | Planned |
🗺️
4,087
Street segments mapped
🌡️
44°C
Average peak across TN cities
📡
Free
All data sources (ISRO + IMD)
வெப்ப வரைபடம்
ThermalMap TN — தமிழ் பயனர் இடைமுகம்
📱 WhatsApp Alert Sample — 3pm Daily Broadcast
🌡️ சேலம் வெப்ப எச்சரிக்கை — இன்று மதியம் 3 மணி
⛔ அண்ணா சாலை: 47°C — மிகவும் ஆபத்தானது
✅ ஷெவாராய் நகர்: 31°C — பாதுகாப்பான பாதை
🚶♀️ பாதுகாப்பான பாதை: Salem Bus Stand → Fairlands
📍 குளிர்ந்த தண்ணீர் கியோஸ்க்: Shevapet Market Gate 3
thermalmap.tn/route | இலவசம் | Free
⛔ அண்ணா சாலை: 47°C — மிகவும் ஆபத்தானது
✅ ஷெவாராய் நகர்: 31°C — பாதுகாப்பான பாதை
🚶♀️ பாதுகாப்பான பாதை: Salem Bus Stand → Fairlands
📍 குளிர்ந்த தண்ணீர் கியோஸ்க்: Shevapet Market Gate 3
thermalmap.tn/route | இலவசம் | Free
✓ Tamil UI complete
✓ WhatsApp alerts
12,400 subscribers
Citizen heat guideToday
🕐 12pm – 5pm: DANGER hours
Stay indoors. No outdoor work. Drink water every 20 min. Avoid Anna Salai, Omalur Road.
🕕 5pm – 7pm: HIGH caution
Use shaded routes only. Carry water. Avoid direct sun. Use ThermalMap cool route.
🌅 Before 10am / After 7pm: SAFE
Outdoor activities safe. Market, school runs, walks all fine in cool corridor areas.
Subscribers by group
Daily-wage workers4,820
General residents5,140
Delivery workers1,680
Pregnant women (health opt-in)760