Tropical Depression 17 formed in the western Gulf of Mexico early on Friday, October 25th 2019. By late on Friday, October 25th, TD#17 strengthened and organized into a tropical storm and was renamed Olga. By later that evening, Olga transitioned again into a post-tropical storm and crossed portions of coastal southeastern Louisiana. The system spread a large mass of heavy rain and thunderstorms north as it merged with a baroclinic trough digging deep into the southern United States which spawned a two day long event of severe weather across southeastern Louisiana on October 25th and 26th.

Flash Flood in TERREBONNE, LOUISIANA
From 26-OCT-19 02:30:00 to 26-OCT-19 04:30:00 (CST-6)
Location: GRAY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency Manager reported numerous roads completely covered in flood waters associated with Post Tropical Storm Olga.

High Wind in LOWER TERREBONNE, LOUISIANA
From 26-OCT-19 02:53:00 to 26-OCT-19 02:53:00 (CST-6)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station XDUL located at Dulac,LA measured a peak wind gust of 60 mph from Post Tropical Storm Olga.

High Wind in UPPER JEFFERSON, LOUISIANA
From 26-OCT-19 02:54:00 to 26-OCT-19 02:54:00 (CST-6)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

ASOS Station KMSY Located at New Orleans International Airport measured a peak wind gust of 59 mph from Post Tropical Storm Olga.

High Wind in UPPER PLAQUEMINES, LOUISIANA
From 26-OCT-19 04:17:00 to 26-OCT-19 04:17:00 (CST-6)
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

AWOS Station KNBG New Orleans Naval Air Station located near Belle Chasse,LA measured a peak wind gust of 66 mph from Post Tropical Storm Olga.

High Wind in UPPER JEFFERSON, LOUISIANA
From 26-OCT-19 04:00:00 to 26-OCT-19 04:00:00 (CST-6)
Magnitude: 51.00 EG
Crop damage: 0.00K
Reported by: Public

Media report of trees and power lines down blocking Roosevelt Blvd in Metairie. Numerous reports of tree damage in the area from strong winds caused by Post Tropical Storm Olga.

High Wind in WASHINGTON, LOUISIANA
From 26-OCT-19 04:35:00 to 26-OCT-19 04:35:00 (CST-6)
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency Manager reports numerous trees and large limbs down near Bogalusa and Franklinton and throught Washington Parish due to high winds from Post Tropical Storm Olga.

High Wind in SOUTHERN TANGIPAHOA, LOUISIANA
From 26-OCT-19 05:15:00 to 26-OCT-19 05:15:00 (CST-6)
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

AWOS Station KHDC located at the Hammond Airport measured a peak wind gust of 58 mph from Post Tropical Storm Olga.

High Wind in SOUTHERN TANGIPAHOA, LOUISIANA
From 26-OCT-19 05:15:00 to 26-OCT-19 05:15:00 (CST-6)
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency Manager reported trees down on homes in the city of Hammond. Wind speeds estimated using nearby ASOS station at the time the damage occurred.

High Wind in ST. TAMMANY, LOUISIANA
From 26-OCT-19 05:00:00 to 26-OCT-19 05:00:00 (CST-6)
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: NWS Employee

Multiple reports of trees and power lines down across St. Tammany Parish, including the cities of Mandeville and Covington. Time estimated.

High Wind in UPPER ST. BERNARD, LOUISIANA
From 26-OCT-19 04:27:00 to 26-OCT-19 04:27:00 (CST-6)
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station XBYU Bayou Bienvenue measured a peak wind gust of 68 mph from Post-Tropical Storm Olga.