Type Alias Sigmet

A parsed SIGMET (Significant Meteorological Information) advisory.

This is a discriminated union of the three SIGMET formats. Use the format field to narrow the type:

const sigmet = parseSigmet(raw);
if (sigmet.format === 'CONVECTIVE') {
  console.log(sigmet.region, sigmet.number);
} else if (sigmet.format === 'NONCONVECTIVE') {
  console.log(sigmet.seriesName, sigmet.hazards);
} else {
  console.log(sigmet.firCode, sigmet.phenomena);
}
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