Hurricane Delta tracked north northwest across the Western Carribean Sea as a major hurricane, having rapidly strengthened from a tropical depression to a Category 4 hurricane in just over 36 hours, the fastest intensification rate on record. Delta made its first landfall across the Yucatan Peninsula near Cancun on October 7th, before tracking north and making a second landfall near Creole, Louisiana in Cameron Parish as a Category 2 hurricane, with maximum sustained winds of 100 mph and a minimum central pressure of 970 mb. This landfall, which occurred around 6 pm on October 9th, was only 12-15 miles east of where Major Hurricane Laura made landfall only 6 weeks prior. Delta remained a hurricane as it tracked northeast across Southwest and Central Louisiana, weakening to a tropical storm as it moved into Eastern Rapides, Southern La Salle, and Catahoula Parishes before moving across Northeast Louisiana east of Monroe.
A combination of observed and estimated wind gusts ranged from 40-70+ mph across Northcentral Louisiana, resulting in scattered to numerous downed trees and power lines over these areas throughout the evening hours of the 9th through the early morning hours of the 10th before winds weakened by mid-morning over Northeast Louisiana and Northwest Mississippi. Widespread rainfall amounts of 2-5 inches was observed across much of North Louisiana, with the highest amounts of 6-10+ inches recorded across Southern Natchitoches, Grant, Winn, Southern Jackson, Southern Ouachita, Caldwell, and La Salle Parishes. In fact, isolated higher totals of 11-12+ inches was measured in Southern Grant and Central Caldwell Parishes, with the Catahoula RAWS near Bentley recording 12.23 inches, and a CoCoRaHS observer 4 miles northwest of Columbia recording 11.42 inches. Sporadic to widespread flooding was observed across Sabine, Natchitoches, Grant, Winn, Union, Ouachita, Caldwell, and La Salle Parishes.
Here are the peak wind gusts at various automated stations across the affected areas of North Louisiana:
Monroe (Ouachita Parish), 63 mph
Gum Springs RAWS (Winn Parish), 54 mph
Peason Ridge (Sabine Parish), 54 mph (Incomplete data due to power failure)
Natchitoches (Natchitoches Parish), 47 mph (Incomplete data due to power failure)
Ruston (Lincoln Parish), 46 mph
During the peak of the widespread power outages shortly after Delta's center of circulation exited Central and Northeast Louisiana during the morning hours of the 10th, 133,000 Cleco customers were without power in Central Louisiana, with an additional 20,500 SWEPCO customers without power in Northwest Louisiana. In North-central and Northeast Louisiana, over 60,000 Entergy customers were without power.
Preliminary damage estimates indicate that Hurricane Delta caused near $1 billion in damage to residential and commercial property throughout Louisiana.
Here are the known damage across various parishes affected in North Louisiana:
Sabine Parish: Scattered trees and power lines were down throughout the parish. Power outages to 10 percent of the parish residents.
Red River Parish: A couple of trees were down across the parish, including near Grand Bayou.
Bienville Parish: Several trees were down across the parish.
Natchitoches Parish: Scattered trees and power lines were down throughout the parish. Power outages to 50 percent of the parish residents. Several roads in and near Natchez were flooded, as was Highway 119 in Natchez. Highway 120 west of I-49 near Robeline was flooded.
Grant Parish: Scattered to widespread trees and power lines were down throughout the parish. Power outages to over 75 percent of the parish residents. Highway 8 near  Pollock and Highway 167 in Dry Prong were flooded. The water was several feet deep in some areas in Pollock.
Winn Parish: Scattered trees and power lines were down throughout the parish. Power outages to over 60 percent of the parish residents. Highway 501 between Winnfield and Calvin was flooded, as was Highway 1228 between Winnfield and Atlanta.
Jackson Parish: Scattered trees and power lines were down throughout the parish. The front of a brick building on Hudson Ave. in Jonesboro collapsed due to the strong winds. Power outages to 50 percent of the parish residents.
Lincoln Parish: Scattered trees and power lines were down throughout the parish. Power outages to 20 percent of the parish residents.
Union Parish: Numerous trees and power lines were down throughout the parish. A tree fell onto a home on the west side of Junction City. Power outages to about one-third of the parish residents. The 400 block of Old Meeks Road was flooded.
Ouachita Parish: Numerous trees and power lines were down throughout the parish. Over 50 trees were down in Kiroli Park in West Monroe, resulting in structural damage to walkways and foot bridges. Power outages to nearly 40 percent of the parish residents. Flooding was reported in the low-lying areas around Monroe and Bawcomville.
Caldwell Parish: Scattered trees and power lines were down throughout the parish. A tree fell on a home in Kelly. Power outages to over 30 percent of the parish residents. The auditorium and a couple of classrooms at the Caldwell Parish High School were flooded. Highway 165 near Kelly was flooded. Numerous other roads were flooded throughout the parish.
La Salle Parish: Widespread trees and power lines were down throughout the parish. Two minor injuries were reported when a vehicle struck a downed tree in Jena. Power outages to over 80 percent of the parish residents. Flooding was reported near Jena on Highway 503, Tobacco Road, and also on Spring Creek Road. A high water rescue was performed after water flooded a home in Jena. Several other homes were evacuated due to the rising flood waters.

Tropical Storm in SABINE, LOUISIANA
From 09-OCT-20 15:00:00 to 10-OCT-20 04:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Tropical Storm in NATCHITOCHES, LOUISIANA
From 09-OCT-20 15:00:00 to 10-OCT-20 04:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Tropical Storm in RED RIVER, LOUISIANA
From 09-OCT-20 18:00:00 to 10-OCT-20 04:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Tropical Storm in BIENVILLE, LOUISIANA
From 09-OCT-20 19:00:00 to 10-OCT-20 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Tropical Storm in LINCOLN, LOUISIANA
From 09-OCT-20 20:00:00 to 10-OCT-20 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Tropical Storm in UNION, LOUISIANA
From 09-OCT-20 21:00:00 to 10-OCT-20 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Tropical Storm in OUACHITA, LOUISIANA
From 09-OCT-20 21:00:00 to 10-OCT-20 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Tropical Storm in JACKSON, LOUISIANA
From 09-OCT-20 20:00:00 to 10-OCT-20 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Tropical Storm in CALDWELL, LOUISIANA
From 09-OCT-20 18:00:00 to 10-OCT-20 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Tropical Storm in WINN, LOUISIANA
From 09-OCT-20 18:00:00 to 10-OCT-20 05:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Tropical Storm in GRANT, LOUISIANA
From 09-OCT-20 15:00:00 to 10-OCT-20 04:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Tropical Storm in LA SALLE, LOUISIANA
From 09-OCT-20 15:00:00 to 10-OCT-20 04:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Flash Flood in LA SALLE, LOUISIANA
From 09-OCT-20 18:49:00 to 10-OCT-20 08:00:00 (CST-6)
Location: SUMMERVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Highway 503 near the intersection of Zeagler Cutoff Road was flooded.

Flash Flood in LA SALLE, LOUISIANA
From 09-OCT-20 20:38:00 to 10-OCT-20 08:00:00 (CST-6)
Location: SUMMERVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

High water on Taylor Chapel Road near Tobacco Road.

Flash Flood in NATCHITOCHES, LOUISIANA
From 10-OCT-20 00:37:00 to 10-OCT-20 08:00:00 (CST-6)
Location: SHAMROCK MILL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Highway 120 just northwest of Robeline was flooded.

Flash Flood in NATCHITOCHES, LOUISIANA
From 10-OCT-20 00:52:00 to 10-OCT-20 08:00:00 (CST-6)
Location: NATCHITOCHES MUNI
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads were flooded in and around Natchez. Highway 119 was completely flooded in Natchez.

Flash Flood in GRANT, LOUISIANA
From 10-OCT-20 01:26:00 to 10-OCT-20 08:00:00 (CST-6)
Location: FISHVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Highway 8 was flooded near Pollock.

Flash Flood in CALDWELL, LOUISIANA
From 10-OCT-20 01:36:00 to 10-OCT-20 07:45:00 (CST-6)
Location: PULPWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The auditorium and a couple of classrooms at the Caldwell Parish High School were flooded.

Flash Flood in OUACHITA, LOUISIANA
From 10-OCT-20 02:20:00 to 10-OCT-20 07:45:00 (CST-6)
Location: STEVEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Low-lying areas in Monroe and Bawcomville were flooded.

Flash Flood in CALDWELL, LOUISIANA
From 10-OCT-20 02:31:00 to 10-OCT-20 07:45:00 (CST-6)
Location: KELLY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Highway 165 near Kelly was flooded.

Flash Flood in LA SALLE, LOUISIANA
From 10-OCT-20 03:45:00 to 10-OCT-20 08:00:00 (CST-6)
Location: JENA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A high water rescue was needed after a home was flooded in Jena. Several other homes were evacuated from their homes due to rising flood waters.

Flash Flood in WINN, LOUISIANA
From 10-OCT-20 03:57:00 to 10-OCT-20 08:00:00 (CST-6)
Location: CALVIN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Highway 501 between Winnfield and Calvin was flooded.

Flash Flood in GRANT, LOUISIANA
From 10-OCT-20 04:01:00 to 10-OCT-20 08:00:00 (CST-6)
Location: POLLOCK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Some areas in Pollock were covered in several feet of water.

Flash Flood in WINN, LOUISIANA
From 10-OCT-20 04:09:00 to 10-OCT-20 08:00:00 (CST-6)
Location: WINNFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Highway 1228 between Winnfield and Atlanta was flooded.

Flash Flood in CALDWELL, LOUISIANA
From 10-OCT-20 04:12:00 to 10-OCT-20 07:45:00 (CST-6)
Location: BURLINGTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous roads were flooded and closed throughout the parish.

Flash Flood in UNION, LOUISIANA
From 10-OCT-20 06:30:00 to 10-OCT-20 07:45:00 (CST-6)
Location: FARMERVILLE ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Portions of Old Meeks Road was flooded.

Flash Flood in LA SALLE, LOUISIANA
From 09-OCT-20 21:10:00 to 10-OCT-20 08:00:00 (CST-6)
Location: JENA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

High water covered Spring Creek Road.