Heat Safety Tool

OSHA, CDC & NIOSH compliant heat stress monitoring

Current Heat Index

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Risk Level

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Current Weather

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Logged Readings

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Heat Index Calculator

Calculate heat index using NOAA's Rothfusz regression formula

Heat Index Input Parameters
Enter the current air temperature in degrees Fahrenheit
Enter the relative humidity as a percentage from 0 to 100

About Heat Index Calculation

Uses NOAA's official Rothfusz regression equation (1990) with all corrections applied. Heat index represents how hot it feels when relative humidity is factored in with air temperature.
Sources: OSHA Heat Safety Tool, CDC Heat Stress Guidelines, NIOSH Criteria Documents

WBGT Calculator

Wet Bulb Globe Temperature for work/rest cycle planning

WBGT Formula

Outdoor: WBGT = 0.7×Tnw + 0.2×Tg + 0.1×Td
Indoor: WBGT = 0.7×Tnw + 0.3×Tg
Based on ACGIH/OSHA guidelines for heat stress management.

Compliance Logger

Log daily heat measurements for workplace compliance records

Quick Log Entry

Additional Notes

No compliance logs yet. Add your first reading above.

Heat Safety News & Updates

Real-time industry updates and regulatory information (auto-updated every 4 hours)

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Heat Illness First Aid Reference

Recognize symptoms and respond appropriately to heat-related illnesses

Heat Cramps

Symptoms:

  • Muscle spasms in legs, arms, or abdomen
  • Heavy sweating
  • Normal body temperature

Treatment:

  1. 1Move to cool area immediately
  2. 2Remove excess clothing
  3. 3Apply cool cloths to skin
  4. 4Sip cool sports drinks with electrolytes
  5. 5Gentle stretching and massage of cramped muscles

Heat Exhaustion

Symptoms:

  • Heavy sweating or no sweating
  • Muscle cramps
  • Tiredness, weakness
  • Dizziness
  • Headache
  • Nausea or vomiting
  • Cool, moist skin

Treatment:

  1. 1Move person to cool area immediately
  2. 2Remove excess clothing
  3. 3Apply cool cloths or ice to head, neck, armpits, groin
  4. 4Have person sip cool water
  5. 5Monitor for worsening condition
  6. 6Seek medical attention if no improvement in 30 minutes

Heat Stroke

Symptoms:

  • Very high body temperature (>103°F)
  • Hot, dry skin or profuse sweating
  • Confusion, altered mental state
  • Loss of consciousness
  • Strong, rapid pulse

Treatment:

  1. 1CALL 911 IMMEDIATELY - This is a medical emergency
  2. 2Move person to cool area immediately
  3. 3Aggressive cooling: ice packs to neck, armpits, groin
  4. 4Immerse in cool water if possible
  5. 5Monitor airway and breathing
  6. 6Do NOT give fluids if unconscious

Rhabdomyolysis

Symptoms:

  • Dark-colored urine
  • Muscle pain/weakness
  • Decreased urine output
  • Fatigue
  • Nausea

Treatment:

  1. 1SEEK IMMEDIATE MEDICAL ATTENTION
  2. 2Stop all physical activity immediately
  3. 3Cool the person gradually
  4. 4Maintain hydration if conscious
  5. 5Monitor kidney function
  6. 6This condition can be life-threatening