Weather and Time

Read a weather report in plain words, estimate where the cloud base sits, and move a time between UTC and the local clock.

Tools in this group

Cloud Base Calculator. Enter the air temperature and the dew point to estimate the base of cumulus clouds above the ground, by the FAA spread rule and by Espy's lifting condensation level.

METAR Decoder. Paste a METAR or SPECI report and read it line by line: wind, visibility, weather, clouds, temperature, altimeter, flight category and remarks, each with its original code.

TAF Decoder. Paste a TAF and read it as a timeline: the base forecast and every FM, BECMG, TEMPO and PROB group with its period, wind, visibility, weather, clouds and flight category.

Zulu Time Converter. Convert Zulu time (UTC) to local time in any time zone, or local time to Zulu, with the time group used in weather reports and a warning when a clock change makes a time ambiguous.