On August 11th, the region saw scattered thunderstorms develop during the afternoon hours. One storm became severe and produced damaging wind gusts.
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.
On August 11th, the region saw scattered thunderstorms develop during the afternoon hours. One storm became severe and produced damaging wind gusts.
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 Aug 11, 9:00 AM CST, 5 hours earlier.
AREA FORECAST DISCUSSION...UPDATE NATIONAL WEATHER SERVICE JACKSON MS 1000 AM CDT SAT AUG 11 2007 .DISCUSSION... SEEMS THAT SOME SLIGHTLY COOLER LOW LEVEL AIR PENETRATED SOUTH INTO THE MOST OF THE REGION IN THE WAKE OF THE WEAK FRONT THAT PASSED SOUTH THROUGH THE AREA LATE YESTERDAY. TEMPERATURES ARE RUNNING SEVERAL DEGREES COOLER THAN THEY WERE THIS TIME YESTERDAY. STILL DO NOT THINK THIS WILL ULTIMATELY TRANSLATE INTO A COOLER DAY THAN YESTERDAY SINCE 12Z JAN SOUNDING SHOWS A LOT OF POTENTIAL FOR EXTREME AFTERNOON HEAT IF DEEP MIXING IS ACHIEVED. DRIER AIR THAT ALSO WORKED INTO THE ARKLAMISS BEHIND SAID BOUNDARY WILL AID IN THE MIXING PROCESS. WITH THAT IN MIND...PREVIOUSLY FORECASTED MAXIMUM TEMPS GENERALLY IN THE 100 TO 102 DEGREE RANGE LOOK GOOD. EXPECT DEWPOINTS TO MIX WELL DOWN INTO THE 60S IN MANY CENTRAL AND EAST LOCATIONS...BUT DEWPOINTS MAY HOLD A LITTLE HIGHER IN THE WEST WHERE CURRENT GOES SATELLITE SOUNDER IMAGERY SHOWS PLUG OF DEEPER MOISTURE HOLDING PAT. THIS SHOULD TRANSLATE IN HEAT INDEX VALUES TOPPING OUT OVER 105 IN ALONG AND WEST OF THE RIVER FOR AN HOUR OR TWO THIS AFTERNOON. THIS STILL IS NOT ENOUGH TO WARRANT ISSUANCE OF A HEAT ADVISORY THERE HOWEVER...SINCE THRESHOLDS OF LOW TEMPS (75 DEGREES OR GREATER) WERE NOT MET LAST NIGHT. ALL IN ALL...UPDATES WERE MINOR WITH TWEAKS TO DEWPOINTS...TEMPS AND CLOUD COVER HAVING NO MAJOR IMPACT. /BB/ && .AVIATION... EXPECT MOSTLY CLEAR SKIES THIS AFTERNOON WITH MOST OF THE MIDDAY AND AFTERNOON CUMULUS CLOUDS FORMING OVER SOUTH MS...SOUTHEAST AR AND NORTHEAST LA WHERE BASES WILL REMAIN WELL ABOVE 3 KFT. COULD STILL BE A VERY ISOLATED SHOWER OR TWO POPPING UP IN THE AFTERNOON ACROSS SOUTHEAST AR AND NORTHEAST LA...BUT DRY AND HOT WEATHER SHOULD GENERALLY BE COUNTED ON. WINDS WILL BE FROM THE NORTH TODAY AND WILL BECOME LIGHT TONIGHT WITH PATCHY LIGHT FOG AND HAZE POSSIBLE AGAIN AFTER MIDNIGHT. /BB/ && .PREVIOUS DISCUSSION... SHORT TERM...TODAY THROUGH SUNDAY NIGHT... THE STRONG SUBTROPICAL RIDGE REMAINS DOMINANT AND THE HEATWAVE CONTINUES THIS WEEKEND...BUT THERE ARE QUESTIONS CONCERNING HEAT STRESS AND POSSIBLE HEAT ADVISORIES. AFTER LOOKING AT THE LATEST DATA TRENDS AND DEWPOINT GUIDANCE (SREF AND MAV MOS) EXPECT THAT HEAT STRESS WILL BE MITIGATED AS DRIER AIR HAS SURGED SWD INTO THE FORECAST AREA. MIXING OF THE DRIER AIR (SFC TD < 70) SHOULD KEEP HEAT INDICES AOB 105 FOR THE MOST PART DESPITE AFTN TEMPS REACHING 100-104 BOTH TODAY AND SUNDAY. HIGHEST VALUES NEAR 105 SHOULD BE OVER NE LA AND EXT SW MS WHERE MOISTURE REMAINS JUST A LITTLE DEEPER. IN ADDITION...TEMPERATURES THIS MORNING ARE FALLING BELOW HEAT ADVISORY CRITERIA (WELL BELOW IN SOME CASES) AND LOWS SAT NIGHT ARE EXPECTED TO FALL INTO THE MID/UPPER 60S. FOR THESE REASONS WILL NOT ISSUE ANOTHER HEAT ADVISORY FOR THIS WEEKEND. CONCERNING CONVECTIVE POTENTIAL...WITH THE DRY AIR SURGING IN DO NOT EXPECT THERE WILL BE ANY CONVECTIVE PRECIPITATION. HOWEVER...DID KEEP POPS NON-ZERO SW PORTIONS OF THE AREA WHERE MOISTURE COULD CONCEIVABLY LEAD TO A STRAY SHOWER. /EC/ LONG TERM...MONDAY THROUGH FRIDAY. MEDIUM RANGE MODELS AND ENSEMBLES AGREE THAT OUR BOUT WITH THE HOT WX WILL CONTINUE WELL INTO NEXT WEEK AS THE ANCHORED UPPER RIDGE WILL DOMINATE THE CENTRAL AND SOUTHERN PORTIONS OF THE US AND KEEP VERY WARM LOW LEVEL TEMPS OVER THE ARKLAMS. AS NOTED ON DAYSHIFT THE PREVIOUS LONG TERM FORECAST LOOKS GOOD AS LATEST OPERATIONAL GUIDANCE/ENSEMBLE NUMBERS ARE CONSISTENT WITH THIS UPPER PATTERN. LATEST GUIDANCE CONTINUES TO SHOW LARGE POSITIVE ANOMALIES WITH THE UPPER RIDGE FOR THIS WEEKEND INTO EARLY NEXT WEEK WITH SEVERAL STANDARD DEVIATIONS ABOVE CLIMATOLOGY. H85 TEMPS WILL CONTINUE TO BE WELL ABOVE NORMAL NUMBERS FOR THIS TIME OF YEAR ON THE ORDER ABOVE SEVERAL STANDARD DEVIATIONS. THIS WILL CONTINUE TO FAVOR TRIPLE DIGITS WITH SEVERAL RECORDS LIKELY BEING SET BEFORE ITS ALL OVER. DECIDING ON ANY HEAT RELATED PRODUCTS DURING THAT TIME MAY BE MORE DIFFICULT. THIS IS BASED THE SOMEWHAT COOLER OVERNIGHT LOWS AND RH VALUES OF 30-40%. HOWEVER...WITH THE AIR TEMPS IN THE EXTREME CATEGORY AND STEADILY WARMING OVERNIGHT LOWS...THE MIDDLE TO LATER PART OF NEXT WEEK MAY BE PRIME AGAIN FOR HEAT RELATED ADVISORIES. THIS IS WHEN HEAT INDICES OF AT LEAST 110 DEGREES WILL COMBINE WITH LOWS IN THE MIDDLE 70S. THE MEDIUM RANGE MODELS DO HINT AT A SLIGHT CHANCE OF DEEP CONVECTION AS A GULF DISTURBANCE INCREASES LOW LEVEL MOISTURE FOR NEXT WEEKEND. THIS REMAINS TO BE SEEN. OTHERWISE MADE SLIGHT ADJUSTMENTS TO MEX GUIDANCE AND ENSEMBLE NUMBERS FOR AFTERNOON HIGHS...MAINLY MONDAY THROUGH WEDNESDAY. KEPT THE DELTA REGION WITH THE HOTTEST TEMPS. MEX NUMBERS FOR NIGHTLY LOWS APPEARED TO BE REASONABLE. SO WENT CLOSE TO THOSE NUMBERS. && .PRELIMINARY POINT TEMPS/POPS... JACKSON 102 65 101 67 / 2 0 0 4 MERIDIAN 102 63 100 68 / 0 0 4 4 VICKSBURG 102 65 99 66 / 5 2 0 5 HATTIESBURG 101 67 100 69 / 4 0 3 0 NATCHEZ 100 66 98 67 / 5 4 0 0 GREENVILLE 102 66 100 67 / 3 0 0 4 GREENWOOD 101 65 100 67 / 0 0 0 4 && .JAN WATCHES/WARNINGS/ADVISORIES... MS...NONE. LA...NONE. AR...NONE. && 50
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 525 AM CDT SAT AUG 11 2007 ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074- 121030- ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND- MADISON-FRANKLIN-CATAHOULA-TENSAS-CONCORDIA-BOLIVAR-SUNFLOWER- LEFLORE-GRENADA-CARROLL-MONTGOMERY-WEBSTER-CLAY-LOWNDES-CHOCTAW- OKTIBBEHA-WASHINGTON-HUMPHREYS-HOLMES-ATTALA-WINSTON-NOXUBEE- ISSAQUENA-SHARKEY-YAZOO-LEAKE-NESHOBA-KEMPER-WARREN-HINDS-RANKIN- SCOTT-NEWTON-LAUDERDALE-CLAIBORNE-COPIAH-SIMPSON-SMITH-JASPER- CLARKE-JEFFERSON-ADAMS-LINCOLN-LAWRENCE-JEFFERSON DAVIS-COVINGTON- JONES-MARION-LAMAR-FORREST- 525 AM CDT SAT AUG 11 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL MISSISSIPPI... NORTHEAST LOUISIANA...AND EXTREME SOUTHEAST ARKANSAS. .DAY ONE...TODAY AND TONIGHT VERY HOT AFTERNOON TEMPERATURES WILL CONTINUE THIS WEEKEND...WITH HIGHS TOPPING OUT NEAR OR JUST ABOVE 100 DEGREES. AFTERNOON HEAT INDICES WILL RISE TO 105...WITH THE GREATEST HEAT EXPECTED ALONG AND WEST OF THE MISSISSIPPI RIVER. PERSONS SHOULD KEEP THE HIGH HEAT IN MIND WHEN PLANNING OUTDOOR ACTIVITIES. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY DRIER AIR WILL LEAD TO LOWER HUMIDITY AND COOLER MORNING LOWS SUNDAY. HOWEVER...THE AIR TEMPERATURE WILL REMAIN HOT. HEAT INDICES WILL INCREASE AGAIN TO ABOVE 105 AS WE GO TOWARD THE MIDDLE OF NEXT WEEK. PERSONS SHOULD KEEP THIS IN MIND WHEN PLANNING OUTDOOR ACTIVITIES NEXT WEEK. .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 FRIDAY. FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.SRH.NOAA.GOV/JAN. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK. 99
The Shreveport radar (KSHV), 191 km away, was scanning. The volume nearest the first event began at 20:04 UTC.
1 thunderstorm wind. Local standard time, as filed.
Several trees were blown down in Crossett with a few blocking a portion of Main Street.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arkansas in 2007Every state in 2007This day in weather historyWarnings in Arkansas, August 2007
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: 53464.