* WHAT. For the first Heat Advisory, heat index values up to 112 expected. * WHERE. Assumption, Central Plaquemines, Lower Jefferson, Lower St. Bernard, Upper Lafourche, Upper Plaquemines, Upper St. Bernard, and Upper Terrebonne Parishes. * WHEN. For the first Heat Advisory, until 7 PM CDT this evening. For the second Heat Advisory, from 11 AM to 7 PM CDT Monday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values up to 112. * WHERE. Portions of southeast Louisiana and southern Mississippi. * WHEN. For the first Heat Advisory, until 7 PM CDT this evening. For the second Heat Advisory, from 11 AM to 7 PM CDT Monday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Southeast winds 20 to 25 kt with gusts up to 35 kt and seas 6 to 10 ft. * WHERE. Portions of and the coastal lakes and bays of the Gulf of Mexico. * WHEN. Until 7 PM CDT Monday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Heat index values up to 109 expected. * WHERE. Portions of southeast Louisiana and southern Mississippi. * WHEN. From 11 AM to 7 PM CDT Monday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values up to 112 expected. * WHERE. Portions of southeast Louisiana and southern Mississippi. * WHEN. From 11 AM this morning to 7 PM CDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. South winds 20 to 30 kt with gusts up to 40 kt and seas 7 to 10 ft. * WHERE. Calcasieu Lake, Coastal waters from Intracoastal City to Cameron LA out 20 NM, Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM, Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM and Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM. * WHEN. Until 1 PM CDT Tuesday. * IMPACTS. Conditions will be hazardous to small craft.