A strong negatively tilted upper level trough slowly moved into the Central and Southern Plains during the morning of December 27th. This trough of low pressure was accompanied by a strong subtropical jet stream which provided abundant lift necessary for the development of widespread showers and thunderstorms. The trough was able to draw up not only Gulf of Mexico moisture but also Eastern Pacific moisture and with a very slow movement to the activity once it developed, the end result was widespread flooding across a large portion of Northeast Texas, Southeast Oklahoma, Southwest Arkansas and Northwest Louisiana. A very unstable airmass for late December was present across the region with a very strongly wind sheared environment. Discrete storms developed across the region ahead of an eventual line of strong to severe thunderstorms. Some of these discrete storms produced tornadoes across the region with several storms producing strong and damaging wind gusts as well.

Thunderstorm Wind in CLAIBORNE, LOUISIANA
From 27-DEC-15 23:40:00 to 27-DEC-15 23:40:00 (CST-6)
Location: HOMER
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed on Spigener Road and Hwy. 540 in the vicinity of Homer, Louisiana.

Thunderstorm Wind in NATCHITOCHES, LOUISIANA
From 27-DEC-15 23:45:00 to 27-DEC-15 23:45:00 (CST-6)
Location: NATCHITOCHES
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed on Hwy. 495 and 156.

Thunderstorm Wind in LINCOLN, LOUISIANA
From 28-DEC-15 01:10:00 to 28-DEC-15 01:10:00 (CST-6)
Location: DOWNSVILLE
Magnitude: 53.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed on Hwy. 15 near Downsville, Louisiana.

Thunderstorm Wind in OUACHITA, LOUISIANA
From 28-DEC-15 01:15:00 to 28-DEC-15 01:15:00 (CST-6)
Location: INDIAN VLG
Magnitude: 53.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was downed on Hattaway Road in Calhoun, Louisiana.

Thunderstorm Wind in UNION, LOUISIANA
From 28-DEC-15 01:35:00 to 28-DEC-15 01:35:00 (CST-6)
Location: OAKLAND
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed on Hwy. 551 northwest of Marion, Louisiana.

Tornado in CADDO, LOUISIANA
From 27-DEC-15 20:16:00 to 27-DEC-15 20:20:00 (CST-6)
Location: BLANCHARD
Tornado F-scale: EF1
Property damage: 250.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An NWS Storm Survey team concluded that the damage north of Blanchard was consistent with that of an EF-1 tornado.  Numerous trees were snapped and/or uprooted along its path.  The tornado moved through two mobile home parks with the tornado lifting one of the mobile homes off its foundation and sending a tree through another.  Several homes lost roofing material or had damage to their skirts.  One outbuilding was destroyed and two other were damage.

Thunderstorm Wind in CADDO, LOUISIANA
From 27-DEC-15 22:10:00 to 27-DEC-15 22:10:00 (CST-6)
Location: JEWELLA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A few trees were downed on Hwy. 169 north.

Thunderstorm Wind in RED RIVER, LOUISIANA
From 27-DEC-15 22:20:00 to 27-DEC-15 22:20:00 (CST-6)
Location: HALL SUMMIT
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed on Hwy. 784 and on Hand Cemetary Road west of Hall Summit, Louisiana.

Thunderstorm Wind in BOSSIER, LOUISIANA
From 27-DEC-15 22:00:00 to 27-DEC-15 22:00:00 (CST-6)
Location: FOSTERS
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed on Hwy. 80, Lake Road, Chandler Road and Dutch John Road.

Thunderstorm Wind in BIENVILLE, LOUISIANA
From 27-DEC-15 22:30:00 to 27-DEC-15 22:30:00 (CST-6)
Location: RINGGOLD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was downed in Ringgold, Louisiana.

Thunderstorm Wind in WEBSTER, LOUISIANA
From 27-DEC-15 22:45:00 to 27-DEC-15 22:45:00 (CST-6)
Location: MINDEN
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were downed across the parish including in the Heflin, Duberly, Cotton Valley and Shongaloo areas.

Lightning in RED RIVER, LOUISIANA
From 27-DEC-15 22:50:00 to 27-DEC-15 22:50:00 (CST-6)
Location: COUSHATTA
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Lightning struck a tree, causing the tree to fall on a house off of Hwy. 71 south of Coushatta, Louisiana.

Thunderstorm Wind in CLAIBORNE, LOUISIANA
From 27-DEC-15 23:07:00 to 27-DEC-15 23:07:00 (CST-6)
Location: NORTON CORNER
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed in Dykesville, Louisiana.

Thunderstorm Wind in LINCOLN, LOUISIANA
From 28-DEC-15 00:10:00 to 28-DEC-15 00:10:00 (CST-6)
Location: MT ZION
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed on Flowers Road and White Road northwest of Ruston, Louisiana.

Thunderstorm Wind in BIENVILLE, LOUISIANA
From 28-DEC-15 00:15:00 to 28-DEC-15 00:15:00 (CST-6)
Location: ARCADIA
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed along Hwy. 147 south of Arcadia, Louisiana.

Tornado in CADDO, LOUISIANA
From 27-DEC-15 20:10:00 to 27-DEC-15 20:11:00 (CST-6)
Location: LONGWOOD
Tornado F-scale: EF1
Property damage: 5.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An NWS Storm Survey team concluded that the damage northeast of Longwood, Louisiana was consistent with that of an EF-1 tornado.  This tornado uprooted and/or snapped several trees along its path.  The skirting of a mobile home also had some damage as well.

Flash Flood in BOSSIER, LOUISIANA
From 27-DEC-15 22:00:00 to 28-DEC-15 00:00:00 (CST-6)
Location: ADNER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Widespread flooding was reported across Bossier Parish.  Flooding was severe on Winnfield Road, 7 Pines Road and Hwy. 162.

Tornado in CLAIBORNE, LOUISIANA
From 27-DEC-15 23:10:00 to 27-DEC-15 23:11:00 (CST-6)
Location: HOMER
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A NWS Storm Survey team concluded that damage southwest of Homer, Louisiana was consistent with that of a short lived EF-1 tornado.  This tornado stayed in rural areas of Claiborne Parish and downed trees along and north of Dutchtown Road.

Flash Flood in WEBSTER, LOUISIANA
From 27-DEC-15 23:30:00 to 28-DEC-15 04:00:00 (CST-6)
Location: GILARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Fuller Road was flooded and closed northwest of Dixie Inn, Louisiana.

Thunderstorm Wind in LINCOLN, LOUISIANA
From 28-DEC-15 00:15:00 to 28-DEC-15 00:15:00 (CST-6)
Location: OAK GROVE
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed on Hwy. 147 southwest of Simsboro, Louisiana.

Thunderstorm Wind in CLAIBORNE, LOUISIANA
From 28-DEC-15 00:33:00 to 28-DEC-15 00:33:00 (CST-6)
Location: SUMMERFIELD
Magnitude: 54.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were downed on Hwy. 9 and Summerfield, Louisiana.