Mobile, AL about 50 mi. West of Pensacola
The showers you describe have been common for as long as I have lived in these parts but they are somewhat different this year. Everything is as you describe except they are not over in a few minutes. The main deluge passes quickly but the overcast and drizzle persists for a couple of hours.
Mobile typically has a rainy season in the spring and early summer, followed by the 10 minute convectives in July and August. These afternoon storms that linger on are something new.