An upper level disturbance moved through the Mid-South on July 18th, 2013. Numerous showers and thunderstorms developed in response to the disturbance.
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 MEG wrote it up.
An upper level disturbance moved through the Mid-South on July 18th, 2013. Numerous showers and thunderstorms developed in response to the disturbance. Some storms became severe producing damaging winds and flash flooding.
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 Memphis, TN wrote its last area forecast discussion before the first event at Jul 17, 11:27 PM CST, 33 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE MEMPHIS TN 1227 AM CDT THU JUL 18 2013 .UPDATE... UPDATED TO INCLUDE THE 06Z AVIATION DISCUSSION BELOW. JCL && .DISCUSSION... /ISSUED 928 PM CDT WED JUL 17 2013/ UPDATE... ISOLATED LATE AFTERNOON/EARLY EVENING SHOWERS HAD DISSIPATED WITH LOSS OF SURFACE HEATING. GOES IR IMAGERY SHOWED SCATTERED TO BROKEN CIRRUS MOVING INTO THE MIDSOUTH FROM THE EAST. THESE HIGH CLOUDS WERE SPREADING WEST AHEAD AN EASTERLY WAVE OVER SOUTHERN APPALACHIA. FORECAST WAS UPDATED EARLIER TO REMOVE MENTIONABLE EVENING RAIN CHANCES AND TO MAKE ADJUSTMENTS TO SKY CONDITION. FORECAST REMAINS ON TRACK AT THIS TIME. PWB PREV DISCUSSION... /ISSUED 259 PM CDT WED JUL 17 2013/ SYNOPSIS... MID-JULY HEAT AND HUMIDITY ARE IN PLACE WITH VERY TYPICAL READINGS FOR THE SEASON. SOME ISOLATED CONVECTION HAS DEVELOPED AND SHOULD CONTINUE INTO THE EARLY EVENING HOURS. BELLES SHORT TERM...(TONIGHT THROUGH SATURDAY)... STRONG UPPER LEVEL HIGH CENTERED OVER THE OHIO VALLEY IS FORECAST TO SLOWLY BREAKDOWN ACROSS THE EASTERN US THROUGH THE REST OF THE WEEK AS A SHORTWAVE ROTATES THROUGH UPPER LOW OVER HUDSON/S BAY. AS A RESULT EXPECT LITTLE CHANGE TO THE FORECAST THROUGH FRIDAY WITH ISOLATED AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS ACROSS THE REGION THAT ARE DIFFICULT OR IMPOSSIBLE TO PINPOINT AN EXACT LOCATION. GFS TEMPERATURE GUIDANCE SEEMS A LITTLE WARM FOR TODAY RELATIVE TO OBSERVATIONS THIS AFTERNOON...SO WILL KEEP THAT IN MIND FOR LATER FORECAST HIGHS...GENERALLY LOWERING A FEW DEGREES BELOW GUIDANCE IN SOME LOCATIONS. HEAT INDEX VALUES ARE EXPECTED TO REMAIN BELOW ADVISORY CRITERIA THROUGH THE PERIOD. BY SATURDAY A SLOW MOVING COLD FRONT WILL APPROACH THE REGION. TIMING BETWEEN THE GFS AND ECMWF IS FAIRLY DECENT WITH THE FRONT STALLING OVER OUR AREA ON SUNDAY. AHEAD OF THIS FRONT THUNDERSTORMS ARE POSSIBLE WITH INCREASING PROBABILITY ESPECIALLY SATURDAY NIGHT. BELLES LONG TERM...(SUNDAY THROUGH WEDNESDAY)... LOCATION OF THE FRONT WHICH IS EXPECTED TO BE GENERALLY STATIONARY ACROSS OUR REGION EARLY IN THE WEEK WILL BE A FOCUS FOR CONVECTION...BECOMING MORE DIURNAL FOR DAY 6 AND 7. WITH THE POTENTIAL FOR MORE CLOUDS AND RAINFALL TEMPERATURES ARE EXPECTED COOL TO NEAR OR SLIGHTLY BELOW AVERAGE. BELLES && .AVIATION... 06Z TAFS HIGH CLOUDS FROM THE EAST WILL CONTINUE TO ADVANCE INTO THE AREA. MVFR CONDITIONS ARE POSSIBLE AT MKL AND TUP DUE TO RADIATIONAL FOG LATE TONIGHT. HOWEVER...HIGH CLOUDS WILL INHIBIT ANYTHING MORE THAN THAT. MORE CU WILL DEVELOP DURING THE DAY THURSDAY WITH SCT TSTMS POSSIBLE...ESPECIALLY IN NE MS. WINDS WILL AVERAGE FROM THE NE AND BE ON THE LIGHT SIDE. JCL/SWC && .PRELIMINARY POINT TEMPS/POPS... MEM 76 96 77 94 / 10 20 20 30 MKL 72 93 72 92 / 10 20 20 30 JBR 73 96 74 94 / 10 20 20 30 TUP 73 93 73 93 / 10 40 30 30 && .MEG WATCHES/WARNINGS/ADVISORIES... AR...NONE. MO...NONE. MS...NONE. TN...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MEMPHIS TN 453 AM CDT WED JUL 17 2013 ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115- MSZ001>017-020>024-TNZ001>004-019>021-048>055-088>092-181200- ALCORN-BENTON MS-CALHOUN-CARROLL-CHESTER-CHICKASAW-CLAY-COAHOMA- CRAIGHEAD-CRITTENDEN-CROCKETT-CROSS-DESOTO-DECATUR-DUNKLIN-DYER- FAYETTE-GIBSON-GREENE-HARDEMAN-HARDIN-HAYWOOD-HENDERSON-HENRY- ITAWAMBA-LAFAYETTE-LAKE-LAUDERDALE-LAWRENCE-LEE AR-LEE MS-MADISON- MARSHALL-MCNAIRY-MISSISSIPPI-MONROE-OBION-PANOLA-PEMISCOT- PHILLIPS-POINSETT-PONTOTOC-PRENTISS-QUITMAN-RANDOLPH-SHELBY- ST. FRANCIS-TALLAHATCHIE-TATE-TIPPAH-TIPTON-TISHOMINGO-TUNICA- UNION-WEAKLEY-YALOBUSHA- 453 AM CDT WED JUL 17 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST ARKANSAS... THE MISSOURI BOOTHEEL...NORTH MISSISSIPPI...AND WEST TENNESSEE. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.
The Columbus AFB radar (KGWX), 11 km away, was scanning. The volume nearest the first event began at 06:02 UTC.
2 thunderstorm wind. Local standard time, as filed.
Straight line winds blew several large trees down, southeast of Amory.
Straight line winds knocked trees and power lines down in Tunica.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Mississippi in 2013Every state in 2013This day in weather historyWarnings in Mississippi, July 2013
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: 469234, 469242.