* 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.

At 856 PM CDT, Doppler radar was tracking strong thunderstorms capable of producing funnel clouds along a line extending from 7 miles southwest of Amelia to 24 miles west of Dulac. Movement was north at 10 mph. HAZARD. Funnel clouds and winds in excess of 40 mph. SOURCE. Radar indicated. IMPACT. If a funnel cloud briefly touches down, minor damage to outdoor objects is possible. Gusty winds could knock down tree limbs and blow around unsecured objects. These storms will remain over mainly rural areas of western Terrebonne and south central Assumption Parishes.

At 853 PM CDT, Doppler radar was tracking a strong thunderstorm 12 miles south of Amelia, or 14 miles south of Morgan City, moving north at 35 mph. HAZARD. Wind gusts up to 40 mph. SOURCE. Radar indicated. IMPACT. Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include. Morgan City, Patterson, Berwick, Stephensville, Bayou Vista, Amelia, Patterson Memorial Airport, Bayou Geneve, and Centerville.

* 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. 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.