National Weather Service United States Department of Commerce

Dangerous Heat in the Western U.S.; Flash Flooding Possible Across Portions of the South

High temperatures in the 90s to 100s and warm overnight temperatures will continue across parts of the Interior Northwest, central California, and the Great Basin. Thunderstorms and heavy rain may produce scattered flash flooding across much of the Southern Rockies into the Southwest, particularly over sensitive burn scars in New Mexico, and across the Southeast into the Carolinas. Read More >


Catastrophic Hurricane Ida Strikes Southeast Louisiana
August 29, 2021

Hurricane Ida made landfall as Category 4 Hurricane in Lower Lafourche Parish near Port Fourchon with maximum sustained wind speeds of 150 mph and a minimum pressure 930 mb. Landfall occurred at 11:55 AM on the morning of August 29, 2021. The storm caused catastrophic damage from wind and storm surge, particularly in the Dulac to Montegut to Grand Isle areas of Lower Terrebonne and Lower Lafourche Parishes. The widespread damage spread well inland across Southeast Louisiana and Southern Mississippi as Hurricane Ida remained at hurricane strength into southwest Mississippi near McComb. For further information on the impacts Hurricane Ida produced across the area, please reference the post-storm report here.  

Hurricane Ida Visible Imagery at Landfall
Geocolor Satellite Loop of Hurricane Ida



Hurricane Ida Visible Imagery at Landfall
Hurricane Ida Visible Imagery at Landfall




Hurricane Ida radar
Hurricane Ida radar loop


Hurricane Ida radar
Hurricane Ida track


Hurricane Ida Wind Reports


Top 10 Wind Gusts Recorded over Land
Location Peak Gust(MPH) Date and Time
Dulac, LA 138 August 29, 2021 at 3:01 PM CDT
Galliano, LA 121 August 29, 2021 at 4:14 PM CDT
New Orleans, LA 113 Not available
Killona, LA 110 August 29, 2021 at 6:46 PM CDT
Mandeville, LA 110 August 29, 2021 at 9:04 PM CDT
Port Fourchon, LA 102 August 29, 2021 at 12:44 PM CDT (Incomplete data)
Thibodaux, LA 100 August 29, 2021 at 7 PM CDT
Bayou Bienvenue, LA 99 August 29, 2021 at 6:16 PM CDT
Live Oak, LA 99 August 29, 2021 at 7:06 PM CDT
Raceland, LA 99 August 29, 2021 at 7:50 PM CDT


Hurricane Ida Storm Surge Reports


Storm Surge Measurements in excess of 5 feet MHHW
Location Surge Value (feet) Datum Date and Time
Grand Isle, LA 10.30 MHHW Not Available
Port Fourchon, LA 8.30 MHHW Not Available
Waveland, MS 6.91 MHHW  August 29, 2021 at 11:06 PM CDT
Shell Beach, LA 6.85 MHHW August 29, 2021 at 12:48 PM CDT
Grand Isle, LA 5.95 MHHW August 29, 2021 at 1:42 PM CDT
New Orleans, LA 5.52 MHHW August 30, 2021 at 6:12 AM CDT
Pilots Station, LA 5.17 MHHW August 29, 2021 at 7:30 AM CDT

Hurricane Ida Rainfall Reports


Radar Estimated Rainfall Map

Hurricane Ida Radar Estimated Rainfall Map


Rainfall Reports in excess of 10 inches
Location Rainfall Amount (inches)
3.3 miles north of Kiln, MS 13.65
13.1 miles north-northwest of Biloxi, MS 13.29
1.4 miles west-southwest of Bay St. Louis, MS 13.12
5.6 miles east-southeast of Picayune, MS 12.83
1 mile north of Waveland, MS 12.83
1.2 miles northwest of Moss Point, MS 12.78
6.2 miles east of Pearl River, LA 12.63
3.8 miles southeast of Carriere, MS 12.57
Pascagoula Trent Lott Airport, MS 12.47
6.6 miles north of Kiln, MS 12.36
3.3 miles northeast of Slidell, LA 11.66
Slidell, LA (NWS Office) 11.64
Gulfport, MS 11.61
4.4 miles east of Slidell, LA 11.53
5 miles north of Pass Christian, MS 11.34
Slidell, LA 11.32
White Plains, MS 11.22
Meraux, LA 10.96
New Orleans Lakefront Airport, LA 10.74
Folsom, LA 10.72
Gulfport-Biloxi International Airport, MS 10.71
1.6 miles north-northeast of Vancleave, MS 10.71
5.0 miles east-northeast of Biloxi, MS 10.60
1.7 miles north-northeast of Saucier, MS 10.14
3.2 miles north-northwest of Madisonville, LA 10.09
1.4 miles north of Lacombe, LA 10.06