* WHAT. Flash flooding caused by excessive rainfall is possible. * WHERE. Portions of Louisiana, including the following parishes, Allen, Avoyelles, Beauregard, Evangeline, Lafayette, Northern Acadia, Northern Calcasieu, Northern Jefferson Davis, Rapides, Southern Acadia, Southern Calcasieu, Southern Jefferson Davis, St. Landry, Upper St. Martin, Upper Vermilion and Vernon and southeast Texas, including the following areas, Hardin, Lower Jefferson, Northern Jasper, Northern Newton, Northern Orange, Southern Jasper, Southern Newton, Southern Orange, Tyler and Upper Jefferson. * WHEN. From Thursday afternoon through Friday afternoon. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS. - A storm system will slowly move through the region Thursday into Friday. Widespread rainfall of 1 to 5 inches is possible with the potential for 5 to 9 inches locally. Southeast Texas north of I-10 into south-central Louisiana has the highest probability of seeing these higher totals. This will fall on already saturated soils and with ongoing flooding and or elevated water ways. Rainfall rates with the strongest showers and storms will be in excess of 2 inches in one hour. Another round of showers and storms will be possible later Friday into Saturday, but confidence is too low to include in the watch at this time. - http://www.weather.gov/safety/flood

The Louisiana Department of Environmental Quality is forecasting an Ozone Advisory Day for East Baton Rouge, West Baton Rouge, Livingston, Ascension, Iberville, and Pointe Coupee Parishes, . The Air Quality Index indicates that ozone will be at the Orange level, which is unhealthy for sensitive groups. Increasing ozone levels may cause unhealthy air quality during afternoon hours. Active children and adults, the elderly, and people with respiratory diseases such as asthma should avoid prolonged outdoor exertion. Please take whatever voluntary steps you can to reduce emissions that contribute to ozone formation. Drive less and make sure your automobile is in good working condition. Make sure your gas cap is tight. Wait until after 6 PM to refuel your vehicle and use gas powered lawn equipment. More information about current air quality and what you can do to help prevent ozone formation is available at the D E Q website www.deq.louisiana.gov/enviroflash or by calling 8 6 6 8 9 6 5 3 3 7.

The Louisiana Department of Environmental Quality is forecasting an Ozone Advisory Day for East Baton Rouge, West Baton Rouge, Livingston, Ascension, Iberville, and Pointe Coupee Parishes, . The Air Quality Index indicates that ozone will be at the Orange level, which is unhealthy for sensitive groups. Increasing ozone levels may cause unhealthy air quality during afternoon hours. Active children and adults, the elderly, and people with respiratory diseases such as asthma should avoid prolonged outdoor exertion. Please take whatever voluntary steps you can to reduce emissions that contribute to ozone formation. Drive less and make sure your automobile is in good working condition. Make sure your gas cap is tight. Wait until after 6 PM to refuel your vehicle and use gas powered lawn equipment. More information about current air quality and what you can do to help prevent ozone formation is available at the D E Q website www.deq.louisiana.gov/enviroflash or by calling 8 6 6 8 9 6 5 3 3 7.

The Flood Warning is extended for the following rivers in Louisiana. Bundick Creek At Bundick Lake Bayou Des Cannes Near Eunice Calcasieu River Near Oakdale Mermentau River Near Mermentau . The Flood Warning continues for the following rivers in Louisiana. Texas. Bayou Anacoco Near Rosepine Calcasieu River Near Oberlin Calcasieu River Near Salt Water Barrier Calcasieu River near White Oak Park Calcasieu River Near Glenmora Calcasieu River Near Kinder Sabine River Near Burkeville Sabine River Near Bon Wier Sabine River Near Deweyville Neches River Near Evadale Neches River Near Town Bluff Pine Island Bayou Near Sour Lake Additional information is available at www.weather.gov. The next statement will be issued as needed. Wednesday morning at 700 AM CDT. * WHAT. Minor flooding is forecast. * WHERE. Mermentau River near Mermentau. * WHEN. From Wednesday afternoon until further notice. * IMPACTS. At 4.0 feet, Minor lowland flooding near the river will occur. * ADDITIONAL DETAILS. - At 10:15 AM CDT Tuesday the stage was 3.6 feet. - Forecast. The river is expected to rise above flood stage early tomorrow afternoon and continue rising to a crest of 4.5 feet early Saturday morning. - Flood stage is 4.0 feet. - http://www.weather.gov/safety/flood

The Flood Warning is extended for the following rivers in Louisiana. Bayou Des Cannes Near Eunice Bayou Anacoco Near Rosepine . The Flood Warning continues for the following rivers in Texas. Louisiana. Sabine River Near Burkeville Pine Island Bayou Near Sour Lake Bundick Creek At Bundick Lake Calcasieu River Near Kinder Calcasieu River Near Oberlin Calcasieu River Near Salt Water Barrier Calcasieu River near White Oak Park Calcasieu River Near Glenmora Calcasieu River Near Oakdale Mermentau River Near Mermentau Sabine River Near Bon Wier Sabine River Near Deweyville Neches River Near Evadale Neches River Near Town Bluff Neches River at Neches River Saltwater Barrier Village Creek Near Kountze Additional information is available at www.weather.gov. The next statement will be issued Wednesday afternoon at 100 PM CDT. * WHAT. Minor flooding is forecast. * WHERE. Mermentau River near Mermentau. * WHEN. From Wednesday afternoon until further notice. * IMPACTS. At 4.0 feet, Minor lowland flooding near the river will occur. * ADDITIONAL DETAILS. - At 9:15 PM CDT Tuesday the stage was 3.7 feet. - Forecast. The river is expected to rise above flood stage early tomorrow afternoon and continue rising to a crest of 4.5 feet early Saturday morning. - Flood stage is 4.0 feet. - http://www.weather.gov/safety/flood

The Flood Warning is extended for the following rivers in Louisiana. Texas. Bundick Creek At Bundick Lake Calcasieu River Near Oakdale Mermentau River Near Mermentau Sabine River Near Burkeville Village Creek Near Kountze Pine Island Bayou Near Sour Lake . The Flood Warning continues for the following rivers in Louisiana. Texas. Bayou Anacoco Near Rosepine Calcasieu River Near Kinder Calcasieu River Near Oberlin Calcasieu River Near Salt Water Barrier Calcasieu River near White Oak Park Calcasieu River Near Glenmora Sabine River Near Bon Wier Sabine River Near Deweyville Neches River Near Evadale Neches River Near Town Bluff Neches River at Neches River Saltwater Barrier . The Flood Warning is cancelled for the following rivers in Louisiana. Bayou Des Cannes Near Eunice Additional information is available at www.weather.gov. The next statement will be issued this morning at 1100 AM CDT. * WHAT. Minor flooding is forecast. * WHERE. Mermentau River near Mermentau. * WHEN. From Friday morning until further notice. * IMPACTS. At 4.0 feet, Minor lowland flooding near the river will occur. * ADDITIONAL DETAILS. - At 9:15 AM CDT Wednesday the stage was 3.6 feet. - Forecast. The river is expected to rise above flood stage Friday morning and continue rising to 4.5 feet Sunday evening. Additional rises are possible thereafter. - Flood stage is 4.0 feet. - http://www.weather.gov/safety/flood

The Flood Warning is extended for the following rivers in Louisiana. Mississippi. Tchefuncte River Near Folsom affecting St. Tammany Parish. Bogue Falaya River At Camp Covington affecting St. Tammany Parish. East Hobolochitto Creek Near Caesar affecting Pearl River County. . The Flood Warning continues for the following rivers in Mississippi. Louisiana. Biloxi River Near Lyman affecting Harrison County. Mississippi River At Red River Landing affecting East Baton Rouge, Pointe Coupee and West Feliciana Parishes. Tchefuncte River Above U.S. Highway 190 Near Covington affecting St. Tammany Parish. Bogue Falaya River At Boston St in Covington affecting St. Tammany Parish. Bogue Chitto River Near Bush affecting St. Tammany Parish. Pearl River Near Bogalusa affecting Pearl River and Washington Counties. Pearl River Near Pearl River affecting St. Tammany, Pearl River and Hancock Counties. Wolf River Above Gulfport affecting Harrison County. For the Lower Mississippi River. including Red River Landing. Minor flooding is forecast. For the Tchefuncte River. including Folsom, U.S. Highway 190 Near Covington. Minor flooding is forecast. For the Bogue Falaya. including Camp Covington, Boston St in Covington. Minor flooding is forecast. For the Bogue Chitto River. including Bush. Minor flooding is forecast. For the Lower Pearl River. including Bogalusa, Pearl River. Minor flooding is forecast. For the East Hobolochitto Creek. including Caesar. Minor flooding is forecast. For the Wolf River. including Gulfport. Minor flooding is forecast. For the Biloxi River. including Lyman. Minor flooding is forecast. * WHAT. Minor flooding is occurring and minor flooding is forecast. * WHERE. Mississippi River at Red River Landing. * WHEN. Until Friday, May 31. * IMPACTS. At 51.0 feet, All river islands along the reach from Red River Landing to Baton Rouge will be inundated. Recreational camps and river bottom farm land will be under water. * ADDITIONAL DETAILS. - At 9:00 PM CDT Tuesday the stage was 48.6 feet. - Bankfull stage is 46.0 feet. - Forecast. The river is expected to rise to a crest of 51.5 feet Tuesday, May 21. It will then fall below flood stage Friday, May 31. - Flood stage is 48.0 feet. - http://www.weather.gov/safety/flood