000 WTNT44 KNHC 291158 TCDAT4 Hurricane Ida Special Discussion Number 13 NWS National Hurricane Center Miami FL AL092021 700 AM CDT Sun Aug 29 2021 Recent reports from both NOAA and Air Force Reserve Hurricane Hunter aircraft indicate that Ida has continued to strengthen since the 0900 UTC advisory and the maximum winds are estimated to be 130 kt. This special advisory is issued to raise the 12-hour forecast intensity to 135 kt, but it is possible that Ida could peak slightly above that before landfall occurs. The initial and forecast 64-kt wind radii were adjusted outward in the northeast and southeast quadrants based on aircraft data. Hurricane-force winds are expected today within the Hurricane Warning area along the Louisiana coast, including metropolitan New Orleans. As Ida moves inland, significant flooding impacts are possible across portions of the Lower Mississippi, Tennessee, and Ohio Valleys through Wednesday.
