An outflow boundary which formed from a complex of thunderstorms across central Arkansas during the early evening hours of May 27th dropped southwest into the region. This outflow boundary encountered a moderately unstable airmass across northwest Louisiana just before the midnight hour.
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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.
An outflow boundary which formed from a complex of thunderstorms across central Arkansas during the early evening hours of May 27th dropped southwest into the region. This outflow boundary encountered a moderately unstable airmass across northwest Louisiana just before the midnight hour. An isolated thunderstorm developed across northern Bossier Parish and produced some wind damage in town.
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 May 27, 7:53 PM CST, 2 hours 37 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 853 PM CDT THU MAY 27 2010 .DISCUSSION... MUCH QUIETER NIGHT ACROSS THE REGION THIS EVENING COMPARED TO 24 HOURS AGO. ISOLATED THUNDERSTORM NEAR MINDEN HAS JUST ABOUT DISSIPATED AND CONVECTION EARLIER ACROSS CENTRAL ARKANSAS CONTINUES TO WEAKEN AS WELL. THIS SHOULD HOLD TRUE THROUGH THE NIGHT AS THE BOUNDARY LAYER CONTINUES TO STABILIZE. FEEL LIKE WE WILL BE ABLE TO REMOVE POPS FROM THE FCST TNGT BUT WILL AWAIT THE ACTIVITY TO DISSIPATE TO OUR NORTH AND EAST BEFORE SENDING OUT AN UPDATE. TEMPERATURES RUNNING QUITE A BIT WARMER THIS EVENING COMPARED TO THE RAIN COOLED AIRMASS 24 HOURS AGO BUT FEEL LIKE FCST MIN TEMPS ARE STILL OBTAINABLE THEREFORE...NO CHANGES TO MIN TEMP FCST TONIGHT. && .AVIATION... WITH NO SIGNIFICANT CHANGE IN AIRMASS EXPECTED OVER THE NEXT 24 HOURS...WILL CONTINUE WITH A PERSISTENCE FORECAST THROUGH FRIDAY AFTERNOON. WINDS ARE EXPECTED TO STAY OUT OF THE NORTH AT 5 TO 10 KNOTS THROUGH 29/06Z. A FEW PATCHY AREAS OF MVFR FOG MAY OCCUR FRIDAY MORNING...MOST LIKELY IN THE ELD TAF AREA. OTHER THAN THAT...SCATTERED CUMULUS CLOUDS WILL OCCUR AGAIN FRIDAY AFTERNOON AT ABOUT 5 KFT...DECREASING BY SUNSET FRIDAY EVENING. /03/ && .PRELIMINARY POINT TEMPS/POPS... SHV 70 92 71 92 70 / 10 20 20 20 20 MLU 69 89 69 91 71 / 10 30 30 30 30 DEQ 66 91 67 90 68 / 10 10 10 10 10 TXK 69 92 69 91 69 / 10 10 10 10 10 ELD 67 89 68 90 69 / 10 30 30 30 30 TYR 70 94 70 94 66 / 10 10 10 10 10 GGG 69 94 70 93 68 / 10 10 10 10 10 LFK 70 93 71 95 68 / 10 20 20 20 20 && .SHV WATCHES/WARNINGS/ADVISORIES... AR...NONE. LA...NONE. OK...NONE. TX...NONE. && 13/03
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1045 AM CDT THU MAY 27 2010 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077- TXZ096-097-108>112-124>126-136>138-149>153-165>167-281545- SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE- COLUMBIA-UNION AR-CADDO-BOSSIER-WEBSTER-CLAIBORNE-LINCOLN- UNION LA-DE SOTO-RED RIVER-BIENVILLE-JACKSON-OUACHITA-SABINE LA- 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-SABINE TX- 1045 AM CDT THU MAY 27 2010 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...TODAY AND TONIGHT... ISOLATED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP DURING THE PEAK HEATING HOURS OF THE AFTERNOON AND EARLY EVENING...ACROSS THE FOUR STATE AREA. HOWEVER...ANY STORMS FOR THE MOST PART...EXPECTED TO REMAIN BELOW SEVERE LIMITS. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... MOSTLY ISOLATED AFTERNOON AND EVENING SUMMERTIME SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP...WITH DAYTIME HEATING. HOWEVER... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. VII
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
603 PM CDT THU MAY 27 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0230 PM TSTM WND DMG BOSSIER CITY 32.52N 93.66W
05/26/2010 BOSSIER LA BROADCAST MEDIA
TREES WERE DOWNED IN THE SHADY GROVE SUBDIVISION IN SOUTH
BOSSIER CITY. ONE TREE FELL ON A PICKUP TRUCK AND ANOTHER
DID DAMAGE TO A CAR PATIO. NO INJURIES WERE REPORTED.
&&
MBERRYThe Shreveport radar (KSHV), 53 km away, was scanning. The volume nearest the first event began at 04:29 UTC.
1 thunderstorm wind. Local standard time, as filed.
Two trees were downed in the town of Plain Dealing, Louisiana. The trees resulted in some damage to a homeowners roof, a porch and his fence.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Louisiana in 2010Every state in 2010This day in weather historyWarnings in Louisiana, May 2010
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: 222481.