Scattered showers and thunderstorms developed during the afternoon of June 12th, as a warm, very moist, and unstable air mass was in place ahead of an upper level low pressure system over Southern Oklahoma and attendant trough axis that trailed the low across Central Texas. This disturbance enhanced the strength of the sea breeze over Southeast Texas and South Louisiana, with multiple outflow…
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The episode as NWS SHV wrote it up.
Scattered showers and thunderstorms developed during the afternoon of June 12th, as a warm, very moist, and unstable air mass was in place ahead of an upper level low pressure system over Southern Oklahoma and attendant trough axis that trailed the low across Central Texas. This disturbance enhanced the strength of the sea breeze over Southeast Texas and South Louisiana, with multiple outflow boundaries focusing new shower and thunderstorm development throughout the day as they spread north over much of East Texas and North Louisiana. Meanwhile, the upper level low pressure system to the west focused scattered shower and thunderstorm development over extreme Northeast Texas, Southeast Oklahoma, and Southwest Arkansas during the afternoon and evening. Isolated strong to severe thunderstorms developed over McCurtain County Oklahoma, extreme Northeast Texas, and Northwest Louisiana, with damaging winds resulting in downed trees and power lines. Locally heavy rainfall also fell from these storms, with reports of flash flooding through Ouachita Parish in North Central Louisiana as widespread 1.5 to in excess of 3 inches of rain fell within a short period of time. These showers and thunderstorms diminished during the evening, before redeveloping overnight and into June 13th as the upper level lower pressure system and trailing trough entered the region.
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 Jun 12, 5:23 PM CST, 52 minutes earlier.
Area Forecast Discussion National Weather Service Shreveport LA 623 PM CDT SUN JUN 12 2016 .AVIATION... Sct convection ongoing across parts of the region this afternoon will likely begin to diminish around sunset with the loss of daytime heating. Additional activity may affect some of our e TX terminals late tonight/early Monday morning, however, as an upper level disturbance moves closer. This activity may affect other terminals further ewd by later in the day Monday. Otherwise, some MVFR cigs/vsbys may be possible at a few terminals around sunrise once again, but will evaluate this further with the 06Z TAF issuance. /12/ && .PREV DISCUSSION... /issued 359 PM CDT SUN JUN 12 2016/ DISCUSSION... Extensive convection associated with an enhanced sea breeze from SE TX/S LA continues to build NNE this afternoon...ahead of broadening upper level trough extending from ern OK SW into Cntrl TX. In fact...the visible satellite loop and mosaic radar imagery depict a well-defined MCV between ABI and SEP...which has tapped a strong instability axis to its E near and N of the DFW Metroplex. Meanwhile...the latest sfc analysis still reveals a W to E sfc bndry from this morning/s MCS over OK still residing along the Red River bordering TX/OK...which extends E along the river to just NW of TXK. Already seeing sct convection develop this afternoon along this convergence axis over McCurtain County OK and adjacent SW AR...with the expectation that this convection will increase late this afternoon/evening as the weak upper trough/attendant MCV continue to drift E into the region. Assuming the convection associated with the enhanced sea breeze over Deep E TX doesn't build N into extreme NE TX this evening...ample instability should remain across the wrn sections of E TX...with a 15-20kt swrly flow level flow helping to maintain the theta-e advection and subtle diffluence aloft over these areas beneath the trough contributing to additional development overnight. Meanwhile...the convection over the Srn zones this afternoon should diminish by mid-evening with the loss of heating and help to stabilize the air mass in place. Given these factors and the ongoing convection...have increased pops to likely across the Wrn sections of E TX tonight...as well as SE OK/adjacent SW AR. Have also raised pops to mid chance farther E to accommodate the early evening convection...although some sct convection may re-develop as far E as Wrn LA/SW AR as the weak troughing aloft enters the region. As was the case this morning over Srn OK...convection may be ongoing near the trough axis/remnant MCV Monday morning...gradually spreading E during the day. Have increased pops to likely for the ern 2/3rd of the area...with drier air aloft behind the trough helping to gradually taper the convection from W to E across SE OK/E TX. Given PW/s between 2-2.2 inches and the weak deep lyr shear in place tonight through Monday...the slow movement and the potential for redevelopment over the same areas may yield in localized heavy rainfall amounts...with the greatest potential possibly over portions of E TX/SE OK/adjacent SW AR late tonight. However...the heavy rainfall amounts will likely be focused on where any mesoscale bndrys set up from the evening convection. Should finally see the convection diminish Monday afternoon/evening as the trough axis drifts into Cntrl AR/Cntrl half of LA...but did maintain low chance pops for these areas Monday night. Again...convective regeneration may occur near the trough axis Tuesday morning...with possibly another enhanced sea breeze resulting in widely sct convection affecting Deep E TX/Ncntrl LA by afternoon. Kept chance pops going for these areas...before the trough exits the region ahead of upper level ridging that will expand NE to the MS Valley Wednesday. Can/t rule out isolated convection developing during the afternoon Wednesday mainly over SW AR/N LA/Deep E TX where the ridge will be weakest...but dropped pops for Thursday as the center of the 850-700mb ridge becomes centered over the region. The increased subsidence will result in hot and humid conditions...with heat indices likely ranging from 100-105 degrees through Friday. The medium range progs do suggest a weak sfc trough backdooring SW around the ern periphery of the ridge as it begins to amplify nwd into the Plains...although low level moisture availability remains questionable. Still kept slight chance pops going Friday/Friday night although the GFS/ECMWF have trended drier this run...but could be dealing with compressional warming with the backdoor sfc trough passage Friday. Did keep temps near/slightly above normal next weekend...with dry conditions expected through the remainder of the extended. Prelims to follow below... 15 && .PRELIMINARY POINT TEMPS/POPS... SHV 75 88 74 92 / 40 60 20 20 MLU 74 88 73 91 / 30 60 30 30 DEQ 73 88 72 91 / 60 60 20 20 TXK 74 88 74 91 / 50 60 20 20 ELD 74 87 73 91 / 30 60 30 30 TYR 74 89 75 91 / 60 50 10 20 GGG 74 88 74 91 / 60 50 20 20 LFK 75 89 75 92 / 50 50 20 30 && .SHV Watches/Warnings/Advisories... AR...None. LA...None. OK...None. TX...None. && 12
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1145 AM CDT SUN JUN 12 2016 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077- TXZ096-097-108>112-124>126-136>138-149>153-165>167-131100- 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-MCCURTAIN-BOWIE-FRANKLIN-TITUS-CAMP- MORRIS-CASS-WOOD-UPSHUR-MARION-SMITH-GREGG-HARRISON-CHEROKEE-RUSK- PANOLA-NACOGDOCHES-SHELBY-ANGELINA-SAN AUGUSTINE- 1145 AM CDT SUN JUN 12 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ARKANSAS...SOUTHWEST ARKANSAS...NORTH CENTRAL LOUISIANA... NORTHWEST LOUISIANA...SOUTHEAST OKLAHOMA...EAST TEXAS AND NORTHEAST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT... SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON OVER MUCH OF THE REGION...WITHIN A HOT...HUMID...AND UNSTABLE AIR MASS IN PLACE...AND AHEAD OF AN UPPER LEVEL DISTURBANCE THAT WILL DRIFT EAST SOUTHEAST ACROSS EASTERN OKLAHOMA AND INTO WESTERN ARKANSAS AND EAST TEXAS THROUGH TONIGHT. BRIEF HEAVY RAINFALL AND LOCALLY GUSTY WINDS WILL BE POSSIBLE IN THE STRONGER STORMS THIS AFTERNOON...WITH THIS THREAT POSSIBLY EXTENDING INTO TONIGHT OVER EAST TEXAS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY... SCATTERED SHOWERS AND THUNDERSTORMS WILL REMAIN POSSIBLE OVER MUCH OF THE AREA MONDAY...AS THIS UPPER LEVEL DISTURBANCE SLOWLY DRIFTS SOUTHEAST OVER THE REGION. BRIEF HEAVY RAINFALL AND LOCALLY GUSTY WINDS WILL BE POSSIBLE IN THE STRONGER STORMS...BUT SHOULD DIMINISH MONDAY NIGHT WITH THE LOSS OF HEATING. SCATTERED SHOWERS AND THUNDERSTORMS WILL REMAIN POSSIBLE OVER SOUTHCENTRAL ARKANSAS AND NORTH LOUISIANA TUESDAY AS THIS DISTURBANCE LINGERS OVER THESE AREAS...BUT RAIN CHANCES WILL DIMINISH WEDNESDAY THROUGH SATURDAY AS AN UPPER LEVEL RIDGE OF HIGH PRESSURE BUILDS EAST ACROSS THE SOUTHERN PLAINS AND INTO THE FOUR STATE REGION. THIS WILL RESULT IN HOT AND HUMID CONDITIONS...WITH HEAT INDICES RANGING FROM 100 TO 105 DEGREES EACH DAY. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF EMERGENCY MANAGERS...SKYWARN NETWORKS...AND AMATEUR RADIO OPERATORS...SHOULD NOT BE NEEDED THIS AFTERNOON OR TONIGHT. 15
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
620 PM CDT SUN JUN 12 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0550 PM TSTM WND DMG 9 SE BARKSDALE AIR FORC 32.41N 93.56W
06/12/2016 BOSSIER LA LAW ENFORCEMENT
TWO TREES DOWN ON HWY 527 AND LIMBS DOWN NEAR HAUGHTON
&&
EVENT NUMBER SHV1600582
MMAYEAUXSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 627 PM CDT SUN JUN 12 2016 LAZ003-004-012-130015- CLAIBORNE LA-WEBSTER LA-BIENVILLE LA- 627 PM CDT SUN JUN 12 2016 ...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL BIENVILLE... SOUTHEASTERN WEBSTER AND SOUTHWESTERN CLAIBORNE PARISHES UNTIL 715 PM CDT... AT 627 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER DUBBERLY...OR 7 MILES SOUTH OF MINDEN...MOVING NORTHEAST AT 20 MPH. WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... MINDEN...HOMER...SIBLEY...GIBSLAND...DUBBERLY...HEFLIN...ATHENS... MOUNT LEBANON...HOLLY SPRINGS...OGDEN...SPRING LAKE AND ADA. PRECAUTIONARY/PREPAREDNESS ACTIONS... FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE. && LAT...LON 3239 9325 3252 9339 3280 9309 3260 9288 TIME...MOT...LOC 2327Z 228DEG 16KT 3251 9326 12
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
629 PM CDT SUN JUN 12 2016
LAZ006-014-130015-
UNION LA-OUACHITA LA-
629 PM CDT SUN JUN 12 2016
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN UNION AND CENTRAL
OUACHITA PARISHES UNTIL 715 PM CDT...
AT 629 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
CLAIBORNE...MOVING NORTHEAST AT 10 MPH.
WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM.
LOCATIONS IMPACTED INCLUDE...
MONROE...CLAIBORNE...WEST MONROE...BROWNSVILLE-BAWCOM...
BROWNSVILLE-BAWCOMVILLE...SWARTZ...RICHWOOD...STERLINGTON...
LOCH LOMON...GUTHRIE...EUREKA...DESHARD...DREW...FAIRBANKS...
CALHOUN...MILLHAVEN...FOLKSVILLE AND CHENIERE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.
&&
LAT...LON 3251 9191 3242 9233 3258 9240 3274 9205
3272 9207 3270 9205 3269 9205 3270 9204
3271 9204 3270 9203 3270 9201 3256 9192
3254 9192 3253 9190
TIME...MOT...LOC 2329Z 238DEG 11KT 3256 9222
12SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 657 PM CDT SUN JUN 12 2016 OKZ077-TXZ096-130045- MCCURTAIN OK-RED RIVER TX- 657 PM CDT SUN JUN 12 2016 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN MCCURTAIN AND NORTHEASTERN RED RIVER COUNTIES UNTIL 745 PM CDT... AT 657 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 9 MILES SOUTHEAST OF MANCHESTER...OR 10 MILES NORTH OF CLARKSVILLE... MOVING EAST AT 15 MPH. WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... IDABEL...NEGLEY...BRYARLY...ALBION AND HARRIS. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE. && LAT...LON 3365 9504 3381 9512 3397 9479 3372 9467 TIME...MOT...LOC 2357Z 248DEG 12KT 3376 9501 12
The Shreveport radar (KSHV), 140 km away, was scanning. The volume nearest the first event began at 00:14 UTC.
1 thunderstorm wind. Local standard time, as filed.
Numerous trees...power lines and power outages were reported southeast of Mount Vernon, Texas.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2016Every state in 2016This day in weather historyWarnings in Texas, June 2016
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: 629979.