As the typhoon is approaching, Hong Kong will be affected by the unsettled weather.
Cantonese
飞机喺高空遇到不稳定气流。
飛機喺高空遇到不穩定氣流。
The plane encountered unstable current high up in the air.
Examples (Wiktionary)
Mandarin
他们片面地注重重工业,忽视农业和轻工业,因而市场上的货物不够,货币不稳定。
他們片面地注重重工業,忽視農業和輕工業,因而市場上的貨物不夠,貨幣不穩定。
tā men piàn miàn de zhù zhòng zhòng gōng yè , hū shì nóng yè hé qīng gōng yè , yī né r5 shì chǎng shàng de huò wù bù gòu , huò bì bù wěn dìng .
Their lop-sided stress on heavy industry to the neglect of agriculture and light industry results in a shortage of goods on the market and an unstable currency.