Q for meteorologists here: why SHRA not DZ?
Today I sit at home in the Sydney area watching the DZ (occasionally perhaps -RA) out the window. It's my boy's 4th birthday party so I consult the YSSY TTF & TAF.
There seems to be a warm moist air mass moving over NSW, so tropical maritime air moving into a cooler region. That sounds like stratiform cloud, drizzle and/or rain to me. Looks like it too.
It really doesn't appear at all like showers of rain: small areas of precipitation from cumuliform cloud, with good visibility between outbreaks.
To the question then: why has BoM said SHRA on all the aviation forecasts instead of DZ or RA?