Source: https://guthlabs.ai/docs/instrument-workflows/weather-station/

instrument chain / verified-workflow-definition

# Weather Station

Raw met readings to felt conditions and flight numbers.

Status: **observed**Lifecycle: **verified-workflow-definition**

## Goal

Raw met readings to felt conditions and flight numbers.

## Instrument chain

- 01

**[Dew Point Calculator](<https://guthlabs.ai/docs/instruments/dew-point-calculator/>)**

moisture

VERIFIED

- 02

**[Relative Humidity ↔ Dew Point Converter](<https://guthlabs.ai/docs/instruments/relative-humidity-dew-point-converter/>)**

cross-check pair

VERIFIED

- 03

**[Humidity Ratio Calculator](<https://guthlabs.ai/docs/instruments/humidity-ratio-calculator/>)**

psychrometrics

VERIFIED

- 04

**[Moist Air Enthalpy Calculator](<https://guthlabs.ai/docs/instruments/moist-air-enthalpy-calculator/>)**

HVAC energy

VERIFIED

- 05

**[Heat Index (Apparent Temperature)](<https://guthlabs.ai/docs/instruments/heat-index-apparent-temperature/>)**

feels-like hot

VERIFIED

- 06

**[Wind Chill](<https://guthlabs.ai/docs/instruments/wind-chill/>)**

feels-like cold

VERIFIED

- 07

**[Pressure Altitude / Density Altitude](<https://guthlabs.ai/docs/instruments/pressure-altitude-density-altitude/>)**

aviation

VERIFIED

- 08

**[Cloud Base Height from Spread (quick field rule)](<https://guthlabs.ai/docs/instruments/cloud-base-height-from-spread-quick-field-rule/>)**

ceiling

VERIFIED

- 09

**[Lifting Condensation Level (LCL) Height](<https://guthlabs.ai/docs/instruments/lifting-condensation-level-lcl-height/>)**

ceiling cross-check

VERIFIED

## Handoffs and cross-checks

T+RH → dew point → spread → cloud base; T+altimeter → PA → DA.

## PointGuard stance

Dew point computed forward and RH recovered backward must round-trip; cloud-base rule and LCL should land within ~10%.

## Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

- `INSTRUMENT_COMBOS.json`

- `VERIFIED_LEDGER.json`