Weather Scenario Briefing Builder v3

1Scenario details

Scenario name

Date (UTC)

ETD (UTC)

Departure airport's ETD, 24-hour UTC (e.g. 20:00). Sets the standard METAR/TAF publish times used for every airport (METAR hourly, TAF on the 00/06/12/18Z 30-hour schedule) — the most recent METAR/TAF available just before this time.

2Airports

Departure

Uses the ETD entered above.

Arrival

ETA is optional. Tip: type ICAO HHMM (e.g. "ROAH 2130") in the code field and press Enter to set both at once.

Planned Alternate

ETA is optional. Tip: type ICAO HHMM (e.g. "ROAH 2130") in the code field and press Enter to set both at once.

Alternate

ETA is optional. Tip: type ICAO HHMM (e.g. "ROAH 2130") in the code field and press Enter to set both at once.

Other

ETA is optional. Tip: type ICAO HHMM (e.g. "ROAH 2130") in the code field and press Enter to set both at once.

3Weather scenario

Describe the conditions you want

Tip: pin exact values for one or more airports by adding each ICAO code with wind DDD/SS (add Gnn for gusts), visibility NNNm (or km/SM), temp TT, QNH QQQQ, cloud COVER[HHH] (e.g. BKN008 or OVC 800, or CLR for clear), and/or wx CODE[,CODE...] (standard codes like RA, SHRA, TSRA, BR, FG, BCFG) — e.g. "VHHH wind 120/22, visibility 650m, cloud base OVC003. ZGSZ temp 30". Any subset works, in any order, for as many airports as you like. Nearby airports without their own override are automatically nudged toward a close overridden airport's conditions (fading out within ~150km), for regional realism - distant airports are unaffected.

Always include at least one SIGMET (even for otherwise benign conditions)

4Generate

Fully offline — weather is synthesized from built-in climatology and a seeded, repeatable generator. No API key, no network calls, no billing.

Mission+ — coloured EFF-style cards (current default). Legacy — plain-text METAR/TAF with runway info and a SIGMET section, matching the older ops briefing format.

5Charts (optional PDF upload)

Upload one or more real Upper Wind or Prognostic (Sig-Wx) chart PDFs. For the standard WAFC London/BoM E-INDOC wind/temp layout, the VALID and BASED ON fields are located and patched automatically from your destination ETA - no manual marking needed. If a chart doesn't match that layout, click-drag a box over the field to mark it manually. Only page 1 of each PDF is patched.

Upper Wind Chart(s)

Prognostic (Sig-Wx) Chart(s)

Live EFF preview

No airports yet Add ICAO codes on the left, describe the scenario, then generate — each airport's METAR / TAF briefing will appear here exactly as it will look in the exported Word document, including automatic colour-coding.

Weather Scenario Briefing Builder v3

1Scenario details

2Airports

3Weather scenario

4Generate

5Charts (optional PDF upload)

Reset password