A Southwest Airlines Boeing 737-8 MAX, registration N8841L performing flight WN-425 from Columbus,OH to Tampa,FL (USA), had been holding enroute due to weather at Tampa before continuing the approach to Tampa. On final approach to Tampa's runway 10, ambient pressure was stated 30.14 in/Hg by tower, the crew was advised of a headwind gain of about 10 knots at low altitude and a "bumpy ride". The aircraft descended below minimum safe height, when tower issued a low altitude alert they levelled off.