A deep upper trough exited the Inter-Mountain West and moved into the Southern Plains on the 17th of November. Ahead of this trough, copious amounts of moisture streamed northward from the Eastern Pacific and Gulf of Mexico.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS SHV wrote it up.
A deep upper trough exited the Inter-Mountain West and moved into the Southern Plains on the 17th of November. Ahead of this trough, copious amounts of moisture streamed northward from the Eastern Pacific and Gulf of Mexico. A warm front also lifted northward form the Gulf Coast, through Northeast Texas, Northwest Louisiana and Southern Arkansas. The atmosphere became weakly unstable across the region after sunrise on the 17th but atmospheric wind shear was very strong, both in the lower levels and the mid and upper levels of the atmosphere. As a result, storms took on bowing line segments with a few discrete storms also present during the day. These storms produced widespread wind damage and some flash flooding from excessive heavy rainfall with thunderstorm training occurred.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Shreveport, LA wrote its last area forecast discussion before the first event at Nov 17, 5:06 AM CST, 54 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
506 AM CST TUE NOV 17 2015
.UPDATE...
TO ADD TORNADO WATCH HEADLINE...MAINLY TEXAS ZONES AND SOME IN SW
ARKANSAS AND ONE IN SE OKLAHOMA.
&&
.DISCUSSION...
WCN FOR TORNADO WATCH 543 UNTIL 15Z/9AM HAS BEEN ISSUED. NO OTHER
CHANGES TO FORECAST AT THIS TIME. /24/
&&
.PREV DISCUSSION... /ISSUED 437 AM CST TUE NOV 17 2015/
DISCUSSION...
IT HAS BEEN A VERY WARM OVERNIGHT PERIOD WITH AIR TEMPERATURES
ABOVE WHERE HIGHS SHOULD BE MUCH LESS LOWS. CLOUDY SKIES WITH
GUSTY S/SW WINDS WITH GUSTS IN THE TEENS AND TWENTIES...EVEN
PEAKING NEAR 30 MPH IN A FEW SPOTS. RADAR MOSAICS HAVE BEEN
SHOWING A STEADY PROGRESSION OF THE MAIN SQUALL LINE AHEAD OF THE
COLD FRONT EDGING TOWARD TERRELL TEXAS NOW AND SHOULD BE INTO
TYLER FOR THE MORNING RUSH TO WORK AND SCHOOL. THIS LINE WILL
SPREAD EASTWARD AT 35 MPH AFFECTING THE ENTIRE FOUR STATE AREA BY
SUNSET. THE RAIN WILL COOL THE AIR A BIT...BUT THE COLD FRONT WILL
MAKE THE REAL DIFFERENCE ON TEMPS AND A LIGHT JACKET IS A GREAT
IDEA ESPECIALLY FOR THE SCHOOL KIDS. 70S WILL QUICKLY BECOME 50S
AND 60S BEHIND THE RAIN.
THE SEVERE THREAT FOR TODAY IS A SLIGHT RISK EVERYWHERE AND EVEN
ENHANCED FOR AREAS DURING THE AFTERNOON HEATING ALONG AND EAST OF
A LINE FROM MAGNOLIA ARKANSAS...TO NEAR SHREVEPORT AND BOSSIER
CITY...DOWN INTO TOLEDO BEND COUNTRY AT MANY. THE DAYTIME HEATING
WILL BRING TO BEAR THE MOST INSTABILITY TO THE SQUALL LINE WITH
BOWING SEGMENTS AND ISOLATED TORNADOES ALL POSSIBLE THROUGH THE
AFTERNOON ON EAST TO CROSSETT...MONROE AND ALEXANDRIA. LITTLE
CHANGE ON GOING LAKE WIND ADVISORY OR THE FLASH FLOOD WATCH FOR
TODAY. WE WILL LCL HAVE MANY UPDATES TODAY WITH A CONVECTIVE
WATCH LIKELIHOOD DEVELOPING RIGHT NOW DUE TO THE FAST SPEED OF
THE LINE AND GOING UP FOR AN AFTERNOON SET OF COUNTIES AND
PARISHES. KEEP ABREAST OF THE SITUATION TODAY WITH NOAA WX
RADIO/COMMERCIAL RADIO AND TV OUTLETS AND SOCIAL MEDIA. /24/
&&
.PRELIMINARY POINT TEMPS/POPS...
SHV 76 47 67 45 / 100 40 10 0
MLU 76 49 68 44 / 100 100 10 0
DEQ 71 41 64 39 / 100 10 0 0
TXK 73 45 65 45 / 100 20 0 0
ELD 73 44 64 41 / 100 90 10 0
TYR 68 46 67 46 / 100 10 10 0
GGG 73 45 69 45 / 100 10 10 0
LFK 74 47 70 45 / 100 30 10 0
&&
.SHV WATCHES/WARNINGS/ADVISORIES...
AR...LAKE WIND ADVISORY UNTIL 6 PM CST THIS EVENING FOR ARZ050-051-
059>061-070>073.
FLASH FLOOD WATCH THROUGH THIS EVENING FOR ARZ050-051-059>061-
070>073.
LA...LAKE WIND ADVISORY UNTIL 6 PM CST THIS EVENING FOR LAZ001>006-
010>014-017>022.
FLASH FLOOD WATCH THROUGH THIS EVENING FOR LAZ001>006-010>014-
017>022.
OK...LAKE WIND ADVISORY UNTIL 6 PM CST THIS EVENING FOR OKZ077.
FLASH FLOOD WATCH THROUGH THIS EVENING FOR OKZ077.
TX...LAKE WIND ADVISORY UNTIL 6 PM CST THIS EVENING FOR TXZ096-097-
108>112-124>126-136>138-149>153-165>167.
FLASH FLOOD WATCH THROUGH THIS EVENING FOR TXZ096-097-108>112-
124>126-136>138-149>153-165>167.
&&
24HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 103 PM CST MON NOV 16 2015 OKZ077-TXZ096-108>111-124-125-136-137-149-150-171100- MCCURTAIN-RED RIVER-FRANKLIN-TITUS-CAMP-MORRIS-WOOD-UPSHUR-SMITH- GREGG-CHEROKEE-RUSK- 103 PM CST MON NOV 16 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST OKLAHOMA AND NORTHEAST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT... THUNDERSTORMS WILL INCREASE IN AREAL COVERAGE AND INTENSITY LATER THIS AFTERNOON AND ESPECIALLY TONIGHT AS A STRONG UPPER LEVEL STORM SYSTEM SHIFTS EASTWARD FROM THE ROCKIES...DRIVING A COLD FRONT INTO CENTRAL TEXAS AND OKLAHOMA DURING THE OVERNIGHT HOURS. A DEVELOPING SQUALL LINE ALONG THE FRONT WILL INTENSIFY AND MAY AFFECT PORTIONS OF NORTHEAST TEXAS AND SOUTHEAST OKLAHOMA AFTER MIDNIGHT. SOME STORMS MAY BE SEVERE AND COULD BE CAPABLE OF PRODUCING DAMAGING WINDS...LARGE HAIL...AND ISOLATED TORNADOES. LOCALLY HEAVY RAINFALL COULD ALSO PRODUCE FLASH FLOODING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... AN INTENSE SQUALL LINE OF STRONG TO SEVERE THUNDERSTORMS IS EXPECTED TO DEVELOP EARLY TUESDAY MORNING ACROSS CENTRAL TEXAS AND OKLAHOMA AHEAD OF A COLD FRONT AND STRONG UPPER LEVEL STORM SYSTEM OVER THE PLAINS. THE RAPID MOVEMENT OF THIS LINE OF THUNDERSTORMS WILL POSE A THREAT OF DAMAGING WINDS...LARGE HAIL...AND ISOLATED TORNADOES. TWO TO FOUR INCHES OF RAINFALL WILL BE POSSIBLE WITH THIS SYSTEM WHICH COULD RESULT IN FLASH FLOODING. THEREFORE...A FLASH FLOOD WATCH IS IN EFFECT FROM 6 AM TUESDAY MORNING THROUGH TUESDAY NIGHT. THESE THREATS WILL DIMINISH FROM WEST TO EAST LATE ON TUESDAY AS THE FRONT EXITS THE REGION. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF EMERGENCY MANAGEMENT PERSONNEL...AMATEUR RADIO OPERATORS...AND STORM SPOTTERS MAY BE NEEDED TONIGHT. ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-TXZ097-112- 126-138-151>153-165>167-171100- SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE- COLUMBIA-UNION-CADDO-BOSSIER-WEBSTER-CLAIBORNE-LINCOLN-DE SOTO- RED RIVER-BIENVILLE-JACKSON-OUACHITA-SABINE-NATCHITOCHES-WINN- GRANT-CALDWELL-LA SALLE-BOWIE-CASS-MARION-HARRISON-PANOLA- NACOGDOCHES-SHELBY-ANGELINA-SAN AUGUSTINE- 103 PM CST MON NOV 16 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ARKANSAS...SOUTHWEST ARKANSAS...NORTH CENTRAL LOUISIANA... NORTHWEST LOUISIANA...EAST TEXAS AND NORTHEAST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT... ISOLATED THUNDERSTORMS WILL BEGIN TO INCREASE AND EXPAND IN COVERAGE LATER TODAY AND ESPECIALLY TONIGHT AS A STRONG UPPER LEVEL STORM SYSTEM SHIFTS EASTWARD INTO OUR REGION...DRIVING A COLD FRONT INTO CENTRAL TEXAS AND OKLAHOMA DURING THE OVERNIGHT HOURS. A FEW STRONG STORMS WILL BE POSSIBLE BUT WIDESPREAD SEVERE WEATHER IS NOT EXPECTED THROUGH TONIGHT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... AN INTENSE SQUALL LINE OF STRONG TO SEVERE THUNDERSTORMS IS EXPECTED TO DEVELOP EARLY TUESDAY MORNING ACROSS CENTRAL TEXAS AND OKLAHOMA AHEAD OF A COLD FRONT AND STRONG UPPER LEVEL STORM SYSTEM OVER THE PLAINS. THE RAPID MOVEMENT OF THIS LINE OF THUNDERSTORMS WILL POSE A THREAT OF DAMAGING WINDS...LARGE HAIL...AND ISOLATED TORNADOES. TWO TO FOUR INCHES OF RAINFALL WILL BE POSSIBLE WITH THIS SYSTEM WHICH COULD RESULT IN FLASH FLOODING. THEREFORE...A FLASH FLOOD WATCH IS IN EFFECT FROM 6 AM TUESDAY MORNING THROUGH TUESDAY NIGHT. THESE THREATS WILL DIMINISH FROM WEST TO EAST LATE ON TUESDAY AS THE FRONT EXITS THE REGION. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF EMERGENCY MANAGEMENT PERSONNEL...AMATEUR RADIO OPERATORS...AND STORM SPOTTERS WILL NOT BE NEEDED THROUGH TONIGHT. 09
The Shreveport radar (KSHV), 155 km away, was scanning. The volume nearest the first event began at 12:00 UTC.
6 flash flood, 4 thunderstorm wind. Local standard time, as filed.
Several trees down northwest of the Cuney community.
Trees were snapped southwest of Noonday, Texas.
An NWS Storm Survey team concluded that the damage northwest of the Garrison, Texas community was consistent with that of straight line wind gusts. Three chicken houses were heavily damaged or destroyed on FM 95 at CR. 3257. Also, a culvert was lifted out of a ditch and destroyed.
Trees and powerlines were downed along FM Road 3098 in the Redwater community.
High water rescues from flooded automobiles became necessary when excessive heavy rainfall resulted in a rapid rise of the Bonita Creek in Nacogdoches, Texas. There were no reports of injuries.
Several roads in the Hudson and Pollock communities were washed out due to flash flooding.
High water was reported on Hwy. 21 between Nacogdoches and San Augustine, Texas.
Numerous road closures including CR. 271, 280, 274, 833, 723, 220, 250, 106 as well as FM 2864 and FM 955 south.
Hwy. 7 west in the Pollock community was flooded and closed along with Durrant Road and Old Bonner Road.
Hwy. 84 near Joaquin, Texas was flooded and closed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2015Every state in 2015This day in weather historyWarnings in Texas, November 2015
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 602464, 602465, 602467, 602468, 602510, 602514, 602516, 602519, 602522, 602525.