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Maharashtra State Heat Wave Action Plan 2024 (SDMA) — Heat Stress Alert Levels

Maharashtra's state heat wave action plan, issued in Marathi by the Disaster Management Department under the Disaster Management Act 2005 framework. Public-health alert overlay only: the plan states on printed page 34 that its instructions are advisory in nature ('सदर सूचना या मार्गदर्शक स्वरूपाच्या असून'), and it publishes no WBGT value, no wet-bulb value and no work/rest schedule. Read in full from the primary Marathi PDF on 2026-07-31; see docs/research/maharashtra_hap-2026-07-31.md for every threshold with its Marathi quote, translation and page citation.

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Governing metric
Maximum ambient temperature, classified against the IMD/NDMA plains absolute-temperature criterion (heat wave >=45C, severe heat wave >=47C) reproduced by the plan on printed page 10
Authority
Government of Maharashtra, Disaster Management Department (State Disaster Management Authority)
Jurisdiction
Maharashtra India
Legal status
Guidance
Published
2024 (unverified)
Rule type
Alert Overlay
Standard ID
HGC-108

Check a reading against this rule

The drag-to-check calculator needs JavaScript. Every value it can show is a row of the table below, which is computed by the same engine.

Governing formula

No standalone formula is published for this standard; see programmable logic and parameters below.

Alert levels

Plains absolute-temperature criterion only. The terrain-specific and departure-from-normal heat-wave criteria the plan also publishes are not evaluated — this calculator has no region-type or seasonal-normal input.

Forecast maximum temperature (°C)Result
35None
36None
37None
38None
39None
40None
41None
42None
43None
44None
45Heat Wave
46Heat Wave
47Severe Heat Wave
48Severe Heat Wave
49Severe Heat Wave
50Severe Heat Wave

Key thresholds

ParameterValue
heatWaveDepartureMinC4.5
severeHeatWaveDepartureMinC6.4
plainsAbsoluteThresholdC40
coastalAbsoluteThresholdC37
hillsAbsoluteThresholdC30
plainsHeatWaveAbsoluteThresholdC45
plainsSevereAbsoluteThresholdC47
advisoryMiddayAvoidStartHour12
advisoryMiddayAvoidEndHour15
flexibleHoursAgeThresholdYears50

Only plainsHeatWaveAbsoluteThresholdC (45C) and plainsSevereAbsoluteThresholdC (47C) drive the alert level.

The terrain thresholds (40/37/30C, printed pages 9 and 25) and the departure-from-normal criterion (4.5-6.4C / >6.4C, printed page 10) are published criteria carried for traceability but not computed -- no region-type or seasonal-normal input exists. advisoryMiddayAvoid 12:00-15:00 (printed pages 35, 36 and 71) is citizen-facing public-health advice, never composite-entering. flexibleHoursAgeThresholdYears (printed page 29) is not computed -- no worker-age input.

The plan's separate 14:00-16:00 window concerns permits for marches and demonstrations, not work, and is intentionally absent from this table.

Inputs

Required inputs: maxTempC

Optional inputs: outdoorSunExposed

Sources

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