A frontal system combined with ample moisture and instability to produce numerous showers and thunderstorms on July 3rd and 4th. A couple of these storms caused damage in Ashley County.
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 JAN wrote it up.
A frontal system combined with ample moisture and instability to produce numerous showers and thunderstorms on July 3rd and 4th. A couple of these storms caused damage in Ashley County.
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 Jackson, MS wrote its last area forecast discussion before the first event at Jul 3, 9:55 AM CST, 3 hours 25 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSON MS 1055 AM CDT SUN JUL 3 2011 .UPDATE...ANOTHER HOT DAY IS ON TAP FOR THE ARKLAMISS BUT ALSO WITH A LITTLE MORE HUMIDITY. TEMPERATURES STARTED OFF A COUPLE DEGREES WARMER THIS MORNING DUE TO THE INCREASE IN LOW LEVEL MOISTURE. TEMPERATURES WERE RUNNING A LITTLE WARMER AT 10 AM ACROSS THE NORTHWEST THAN THE SAME TIME SATURDAY AND WERE A COUPLE DEGREES COOLER IN THE CENTRAL AND EAST. AFTERNOON HIGHS ARE ON TRACK FOR THE UPPER 90S ACROSS THE AREA. MORNING SOUNDING SHOWED A PW BACK NEAR AN INCH AND A HALF WITH SURFACE DEW POINTS IN THE LOWER 70S. THIS INCREASE IN MOISTURE AND DECREASE IN HIGH PRESSURE OVER THE REGION SHOULD LEAD TO SLIGHTLY GREATER COVERAGE OF AFTERNOON AND EVENING STORMS. GREATEST CHANCE FOR STORM DEVELOPMENT WILL BE IN THE SOUTH. CURRENT FORECAST WAS ON TRACK AND ONLY MINOR TWEAKS TO TEMPERATURES WERE MADE. /22/ && .AVIATION...VFR CONDITIONS WILL PREVAIL THROUGH THE TAF PERIOD. 5-8KFT FEW TO SCT CLOUD DECK IS EXPECTED TO DEVELOP THIS AFTERNOON. ISOLATED SHOWER/THUNDERSTORM ACTIVITY IS EXPECTED AGAIN TODAY ACROSS LOCATIONS ALONG AND SOUTH OF I-20 THAT MAY LEAD TO BRIEF MVFR CONDITIONS IF TAF SITE AFFECTED. WILL CONTINUE TO KEEP VCSH/VCTS IN TAF AND AMEND AS STORM IMPACTS LOOK MORE IMMINENT. WINDS WILL GENERALLY BE OUT OF THE SOUTH AROUND 5-10KTS./28/ && .PREV DISCUSSION... /ISSUED 340 AM CDT SUN JUL 3 2011/ SHORT TERM...CONTINUED HOT AND MOSTLY DRY WITH SLIGHTLY BETTER CHANCES FOR AFTERNOON AND EARLY EVENING SHOWERS AND THUNDERSTORMS TODAY AND TOMORROW. SLOW H5 RIDGE BREAKDOWN CONTINUES TO BE PROGGED BY MULTI-MODEL CONSENSUS THROUGH THE SHORT TERM. 10 TO 20 DM HEIGHT FALLS AT H5...COUPLED WITH INCREASING LOW AND MID-LVL MOISTURE AND INSTABILITY WILL RESULT IS LARGER AREAL EXTENT OF SHOWER AND THUNDERSTORM ACTIVITY TODAY COMPARED TO YESTERDAY. AS GREATER SFC-H7 MOISTURE ADVECTS EWRD ACROSS THE LOWER 2/3RDS OF THE ARKLAMISS...SHOWER/THUNDERSTORM COVERAGE WILL EXTEND FARTHER WEST THAN IT DID YESTERDAY. ONE OR TWO THUNDERSTORMS COULD BECOME STRONG WITH THE MAIN RISK OF LOCALIZED WIND GUSTS TO 50 MPH. STILL ANTICIPATE MOST RAIN/THUNDER ACTIVITY WILL DISSIPATE BY 10PM TONIGHT. MUCH OF THE SAME PATTERN WILL EXIST FOR THE FOURTH OF JULY ON MONDAY WITH PWATS EXPECTED TO INCREASE NEAR 2 INCHES ACROSS SRN LOCATIONS AND AT LEAST 1.5 INCHES EVERYWHERE ELSE. THIS MOISTURE COMBINED WITH GREATER INSTABILITY /~2000 J/KG MLCAPE/ AND SOME VERTICAL TOTALS APPROACHING 28 DEG C WILL ALLOW FOR STRONG THUNDERSTORMS AND POSSIBLY ONE OR TWO BRIEF PULSE SEVERE STORMS. WILL MENTION HAZARD IN HWO. INTERESTINGLY..THE NAM IS BULLISH ON DEPICTING SOME ENHANCED VORTICITY POCKETS ACROSS CENTRAL LOCATIONS THAT MAY SERVE TO ENHANCE SOME OF THE CONVECTION. WHILE THE COURSE RESOLUTION OF THE OPS GFS DOES NOT HAVE AS GREAT VORT MAGNITUDES AS THE NAM DEPICTS...IT TOO SHOWS SOME SUBTLE VORT ENHANCEMENT AS WELL. EXPECT MOST OF THE DIURNAL SHOWER/THUNDER ACTIVITY TO ONCE AGAIN DISSIPATE BY 10 PM BUT SOME INTERRUPTION OF FIREWORK CELEBRATIONS COULD BE POSSIBLE ACROSS THE REGION. FOR LATE MONDAY INTO TUESDAY...THE ALREADY ABATING RIDGE WILL FURTHER FLATTEN AND WEAKEN ALLOWING A SHORTWAVE TROUGH AXIS TO DROP DOWN THE MID-MS VALLEY ACROSS THE NORTH. AT THE SAME TIME...AN INVERTED TROUGHING FEATURE WILL WEAKEN IT FROM THE SOUTH/EAST ACROSS THE N GULF. AGAIN...GIVEN MOIST/UNSTABLE ENVIRONMENT...EXPECT SHOWERS AND THUNDERSTORMS TO GET GOING BY EARLY AFTERNOON TUESDAY WITH SOME CAPABLE OF BECOMING STRONG TO SEVERE. A MORE ACTIVE SEA-BREEZE CONVECTIVE BELT IS EXPECTED ACROSS THE SOUTH TUESDAY AS SCATTERED CONVECTION WILL BE POSSIBLE ACROSS THE ENTIRE REGION AND LAST LONGER INTO THE NIGHT MONDAY AND TUESDAY MORNING. HAVE ADJUSTED WEATHER TIMING TO REFLECT INCREASED LONGEVITY DURING THIS TIME FRAME. CONCERNING FORECAST MATTERS...INCREASED SLIGHT POPS FARTHER NWRD TODAY TO INCLUDE ENTIRE AREA GIVEN NRN EXTENT OF STORMS YESTERDAY. POPS WERE ALSO INCREASED TO 20 TO 30 FOR TOMORROW AFTERNOON ACROSS MUCH OF REGION GIVEN LOW 10 TO 15 POPS COMING IN FROM MAVMOS. THE OVERNIGHT PERIOD OF MONDAY INTO TUESDAY CAME IN WITH RATHER BULLISH AND STUCK WITH 20 POPS WEST UPWARDS TO 40 ACROSS THE EAST. CONCERNING TEMPS...THEY WERE BUMPED UP AGAIN TODAY GIVEN READINGS REACHED YESTERDAY AND GENERALLY ACCEPTED THROUGH TUESDAY. /ALLEN/ LONG TERM...UPPER RIDGING CONTINUES TO GIVE WAY IN THE EXTENDED FORECAST AND SUBSIDENCE WILL BE ERODED ENOUGH TO ALLOW ISOLATED TO SCATTERED CONVECTION EACH DAY. THE GFS PAINTS 28-29 VERTICAL TOTALS OVER ALL BUT SRN ZONES FOR TUESDAY AFTERNOON. OTHER MODELS ALSO INDICATE AN UNSTABLE AIR MASS BUT ARE A LITTLE LOWER ON STABILITY INDICES SUCH AS VERTICAL TOTALS AND LAPSE RATES. A WEAK ZONE OF SURFACE CONVERGENCE WILL ALSO CONTINUE ACROSS THE AREA THROUGH THE FORECAST PERIOD TO HELP FOCUS AFTERNOON CONVECTION. UPPER TROUGHING WILL BE POSITIONED OVER NRN ZONES TUESDAY. UPPER TROUGHING DROPS INTO CNTRL/SRN ZONES WEDNESDAY AND AN AREA OF SLIGHTLY DRIER AIR IS FORECAST INTO NRN ZONES IN RIDGING THAT REDEVELOPS IN THE WAKE OF THE TROUGH. THE REGION WILL SIT BETWEEN HIGH PRESSURE TO OUR WEST AND WEAK TROUGHING TO OUR EAST FOR THURSDAY INTO THE WEEKEND. THE AIR MASS WILL REMAIN MOIST WITH PRECIPITABLE WATER VALUES ABOVE 2 INCHES OVER MUCH OF THE REGION BY FRIDAY. 850 MB THETAE FIELDS ARE FORECAST AROUND 340 DEGS TUESDAY AFTERNOON AND REMAIN 340 DEGS AND ABOVE THROUGH SATURDAY...PROVIDING PLENTY OF MOISTURE FOR AFTERNOON CONVECTION ACROSS THE AREA. && .PRELIMINARY POINT TEMPS/POPS... JACKSON 98 72 97 72 / 18 24 25 27 MERIDIAN 98 71 96 70 / 18 20 27 39 VICKSBURG 99 72 97 70 / 16 24 24 21 HATTIESBURG 98 72 97 72 / 27 15 28 20 NATCHEZ 95 73 95 72 / 26 20 29 18 GREENVILLE 98 73 98 73 / 16 17 18 23 GREENWOOD 98 72 97 72 / 16 15 18 26 && .JAN WATCHES/WARNINGS/ADVISORIES... MS...NONE. LA...NONE. AR...NONE. && 22/28/ALLEN/03
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 339 AM CDT SUN JUL 3 2011 ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074- 040845- ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND- MADISON LA-FRANKLIN LA-CATAHOULA-TENSAS-CONCORDIA-BOLIVAR- SUNFLOWER-LEFLORE-GRENADA-CARROLL-MONTGOMERY-WEBSTER-CLAY-LOWNDES- CHOCTAW-OKTIBBEHA-WASHINGTON-HUMPHREYS-HOLMES-ATTALA-WINSTON- NOXUBEE-ISSAQUENA-SHARKEY-YAZOO-MADISON MS-LEAKE-NESHOBA-KEMPER- WARREN-HINDS-RANKIN-SCOTT-NEWTON-LAUDERDALE-CLAIBORNE-COPIAH- SIMPSON-SMITH-JASPER-CLARKE-JEFFERSON-ADAMS-FRANKLIN MS-LINCOLN- LAWRENCE-JEFFERSON DAVIS-COVINGTON-JONES-MARION-LAMAR-FORREST- 339 AM CDT SUN JUL 3 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL MISSISSIPPI... NORTHEAST LOUISIANA...AND EXTREME SOUTHEAST ARKANSAS. .DAY ONE...TODAY AND TONIGHT A FEW STRONG THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON AND EARLY EVENING AS TEMPERATURES WARM INTO THE UPPER 90S AND MOISTURE INCREASES OVER THE REGION. THE MAIN HAZARDS WITH THESE STORMS WILL BE FROM WIND GUSTS UP TO 50 MPH...SMALL HAIL AND DANGEROUS CLOUD TO GROUND LIGHTNING. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY A FEW STRONG TO BREIFLY SEVERE STORMS WILL ALSO BE POSSIBLE ON MONDAY JULY 4TH WITH THE MAIN HAZARDS AGAIN BEING WIND GUSTS UP TO 50 TO 60 MPH...SMALL HAIL AND DANGEROUS CLOUD TO GROUND LIGHTNING. THE PRIMARY TIME OF DAY WOULD BE FROM MID AFTERNOON THROUGH THE EVENING. WITH MANY OUTDOOR ACTIVITIES TAKING PLACE THIS HOLIDAY WEEKEND...PLEASE REMEMBER TO TAKE COVER ONCE THUNDER IS HEARD AS LIGHTNING CAN STRIKE MANY MILES FROM THE THUNDERSTORM. .SPOTTER CALL TO ACTION STATEMENT... THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND EMERGENCY MANAGEMENT PERSONNEL IN SUPPORT OF SEVERE WEATHER OPERATIONS IS NOT EXPECTED THROUGH NEXT SATURDAY. FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.SRH.NOAA.GOV/JAN. ALLEN/28
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 204 PM CDT SUN JUL 3 2011 MSZ057-058-031950- CLARKE MS-JASPER MS- 204 PM CDT SUN JUL 3 2011 ...STRONG STORM IN WESTERN CLARKE COUNTY... A STRONG THUNDERSTORM CAPABLE OF PRODUCING PENNY TO NICKEL SIZE HAIL AND 40 TO 50 MPH WINDS WAS LOCATED 3 MILES EAST OF GOODWATER AT 205 PM CDT...MOVING WEST AT 15 MPH. VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING ARE ALSO POSSIBLE WITH THIS STORM. PEOPLE IN SOUTHEASTERN JASPER AND SOUTHWESTERN CLARKE COUNTIES SHOULD MONITOR THIS STORM CLOSELY. LAT...LON 3184 8874 3186 8908 3205 8887 3197 8869 TIME...MOT...LOC 1905Z 108DEG 11KT 3191 8883 JC
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 220 PM CDT SUN JUL 3 2011 ARZ074-032000- ASHLEY AR- 220 PM CDT SUN JUL 3 2011 ...STRONG THUNDERSTORM MOVING SLOWLY NEAR CROSSETT... A STRONG THUNDERSTORM CAPABLE OF PRODUCING PEA TO DIME SIZE HAIL AND 40 TO 50 MPH WINDS WAS LOCATED OVER CROSSETT AT 220 PM CDT...MOVING NORTHEAST AT 5 MPH. VERY HEAVY RAIN ALONG WITH CONTINUOUS CLOUD TO GROUND LIGHTNING ARE ALSO POSSIBLE WITH THIS STORM. HIGH WINDS CAN BRING DOWN TREES AND LARGE LIMBS RESULTING IN SERIOUS INJURY OR PROPERTY DAMAGE. EXERCISE EXTREME CAUTION WHEN OUTDOORS DURING SUCH STRONG WINDS...AND BE ESPECIALLY AWARE OF OLDER TREES. PEOPLE IN WESTERN ASHLEY COUNTY SHOULD MONITOR THIS STORM CLOSELY. LAT...LON 3332 9188 3309 9171 3301 9203 3319 9212 TIME...MOT...LOC 1920Z 244DEG 4KT 3312 9193 JC
The Shreveport radar (KSHV), 191 km away, was scanning. The volume nearest the first event began at 19:20 UTC.
2 thunderstorm wind. Local standard time, as filed.
Several trees and power lines were blown down throughout the city.
A couple of trees were blown down on Ashley Road 271.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arkansas in 2011Every state in 2011This day in weather historyWarnings in Arkansas, July 2011
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: 325129, 325130.