A very warm, moist and unstable airmass triggered a thunderstorm producing torrential downpours over Chicot County Arkansas on June 30th. Flash flooding was the only severe weather reported.
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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 JAN wrote it up.
A very warm, moist and unstable airmass triggered a thunderstorm producing torrential downpours over Chicot County Arkansas on June 30th. Flash flooding was the only severe weather reported.
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 Jun 30, 2:00 PM CST, 4 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSON MS 300 PM CDT WED JUN 30 2010 .SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT...A TROPICAL AIRMASS AND GREATEST RAIN CHANCES WILL CONTINUE ACROSS THE SOUTHERN HALF OF OUR CWA THROUGH THE SHORT TERM WHILE HIGH PRESSURE AND DRIER AIR TRY TO LIMIT CONVECTION IN THE NORTH. SURFACE ANALYSIS HAS THE STALLED BOUNDARY ALONG AND JUST SOUTH OF HIGHWAY 82. A BAND OF SHOWERS AND ISOLATED THUNDERSTORMS HAS DEVELOPED ALONG THE BOUNDARY AND WL CONTINUE INTO THIS EVENING. A BROAD AREA OF SHOWERS WITH SCATTERED THUNDERSTORMS WAS NOTED ON LOCAL RADARS MOVING NORTH INTO SOUTHERN MISSISSIPPI AND EAST CENTRAL LOUISIANA. THUS...MOST OF THE SOUTHERN TWO THIRDS OF THE AREA WL RECEIVE MEASURABLE RAINFALL THIS AFTERNOON AND EVENING. INSTABILITY WILL REMAIN LIMITED BUT WHERE THUNDERSTORMS OCCUR...LOCALLY HEAVY RAIN WILL LIKELY RESULT AND LEAD TO THE PONDING OF WATER ON ROADS AND MINOR FLOODING OF POOR DRAINAGE AREAS. WL CONTINUE TO HIGHLIGHT THIS IN THE HWO BUT FOCUS ON OUR SOUTH WHERE THE GREATEST COVERAGE OF THUNDERSTORMS IS EXPECTED. THE CHANCE FOR SHOWERS WILL CONTINUE THROUGH THE NIGHT IN THE SOUTH BUT ELSEWHERE...CONVECTION SHOULD DISSIPATE DURING THE EVENING. MODELS AGREE THAT THE LARGE AMPLITUDE UPPER LEVEL RIDGE OVER THE CENTRAL CONUS THIS AFTERNOON WILL SHIFT EAST OVER THE MID AND UPPER MISSISSIPPI RIVER VALLEYS THROUGH FRIDAY AND STRENGTHEN THE SURFACE HIGH CENTERED OVER THE GREAT LAKES REGION THAT WILL SHIFT EAST TO THE MID ATLANTIC COAST. THIS WILL RESULT IN COOLER AND DRIER AIR TRYING TO MOVE THE STALLED BOUNDARY FURTHER SOUTH INTO OUR AREA BUT THE MODELS DISAGREE ON HOW FAR SOUTH THE DRIER AIR WILL SURGE. HAVE LEANED TOWARD A BLEND OF THE SREF AND ECMWF. THE 18Z JAN SOUNDING SHOWED A PW OF 2.26 INCHES AND PWS AOA TWO INCHES WL CONTINUE ACROSS THE SOUTHERN HALF OF THE CWA WHILE DRIER AIR WORKS SOUTH INTO OUR NORTHERN COUNTIES THURSDAY AND FRIDAY. COME THURSDAY THE STALLED BOUNDARY IS EXPECTED TO BE BETWEEN HIGHWAY 82 AND INTERSTATE 20. HIGHEST POPS WILL BE CARRIED SOUTH OF I-20. WL LEAVE OUT MENTION OF RAIN FOR OUR NORTHEAST MOST COUNTIES. FRIDAY THE OPERATIONAL GFS STILL TRIES TO DEVELOP A SURFACE LOW OVER SE MISSISSIPPI AND TRACK IT WEST THROUGH THE DAY. WL DISCOUNT THIS FEATURE AND MAINTAIN THE STALLED BOUNDARY JUST NORTH OF I-20 WITH THE DRIER AIR A LITTLE FURTHER SOUTH INTO OUR CWA. WL NOT CARRY POPS ALONG THE HIGHWAY 82 CORRIDOR WITH GREATEST POPS OVER OUR SOUTHERN ZONES AGAIN. LOWER CLOUD COVER AND DRIER AIR WILL ALLOW FOR GREATEST INSOLATION AND WARMEST AFTERNOON HIGHS IN THE NORTH THURSDAY AND FRIDAY BUT HEAT INDEX VALUES WILL REMAIN BELOW 100 DEGREES EACH DAY. HAVE GONE WITH THE COOLER NAM AFTERNOON HIGHS IN THE DELTA THURSDAY BUT GUIDANCE TEMPS WERE CLOSE THE REMAINDER OF THE PERIOD. /22/ .LONG TERM...SATURDAY THROUGH WEDNESDAY...MODEL DISCREPANCIES CONTINUE IN THE LONG TERM WITH THE GFS BEING THE OUTLIER IN DEVELOPING A MORE AMPLIFIED UPPER LOW OVER SRN ZONES. THE EURO/SREF/GFSE MAINTAIN MUCH STRONGER RIDGING OVER THE AREA FRIDAY WHILE DEVELOPING UPPER TROUGHING ACROSS THE NRN GULF. MODELS WITH STRONGER RIDGING INDICATE WEAK WAVES PIVOTING AROUND THE SRN FRINGES OF THE HIGH THIS WEEKEND INTO EARLY NEXT WEEK WITH THE GFSE PROGRESSIVELY ERODING RIDGING MON INTO TUE AS IT TRACKS A BROAD TROUGH WWD INTO THE SE U.S. COAST. THE FORECAST AREA WILL SIT IN A PATTERN OF SLY FLOW AT THE SURFACE ON THE WRN FRINGES OF HIGH PRESSURE CENTERED WELL TO THE EAST. SURFACE RIDGING WILL REMAIN TOO FAR EAST TO OFFER MUCH PROTECTION FROM AFTERNOON CONVECTION. PERIODS OF WEAK CYCLONIC SURFACE FLOW ARE INDICATED OVER THE REGION INTO EARLY NEXT WEEK. EVEN WITH DEVELOPING UPPER RIDGING...AFTERNOON HEATING SHOULD BE SUFFICIENT FOR SCATTERED CONVECTION OVER SRN ZONES. ADDING UNCERTAINTY TO THIS HOWEVER IS THE FACT THAT EURO ADVECTS SIGNIFICANTLY DRIER AIR IN FOR THE WEEKEND INTO NEXT WEEK. CONFIDENCE IS NOT HIGH ENOUGH AT THIS TIME TO LOWER MEX POPS ANY FURTHER. WILL FOLLOW A MIDDLE OF THE ROAD APPROACH...LEAVING LOWER POPS BUT STILL SCATTERED AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS OVER THE SOUTH WITH DECREASING RAIN CHANCES NWD. HAVE UNDERCUT MEX MOS POPS FOR THE EXTENDED PERIODS...GENERALLY FOLLOWING THE LOWEST ENSEMBLE MEMBERS FOR FRIDAY THROUGH TUESDAY. THIS WILL RESULT IN A WARMER FORECAST THAN ADVERTISED BY MOS...ESPECIALLY FOR DAYTIME TEMPERATURES. WIND SPEEDS FOR THE EXTENDED PERIODS WERE ALSO REDUCED IN CONSIDERATION OF MEX WINDS BEING OVERDONE IN THE STRONGER LOW SYSTEM. /OLB/ && .AVIATION...SCATTERED TO NUMEROUS SHOWERS...ALONG WITH AN ISOLATED THUNDERSTORM OR TWO...WILL CONTINUE TO DEVELOP ACROSS THE AREA THROUGH THIS EVENING...ESPECIALLY ACROSS THE SOUTH...KHBG. THIS ACTIVITY WILL PROVIDE SITES PERIODS OF BOTH MVFR/IFR CEILINGS AND VISIBILITIES WHEN OBSERVED WITHIN AND IMMEDIATELY AROUND THE AERODROME. WHILE SOME ACTIVITY WILL LINGER INTO THE OVERNIGHT HOURS...PARTICULARLY IN THE SOUTH...MOST OF THE ACTIVITY SHOULD DISSIPATE TONIGHT...BUT PATCHY FOG TOWARDS DAY BREAK EARLY THURSDAY MORNING COULD LEAD TO RESTRICTED CEILINGS AND VISIBILITIES. SCATTERED TO ISOLATED SHOWERS AND STORMS ARE AGAIN EXPECTED THURSDAY MORNING INTO THURSDAY AFTERNOON OVER LOCATIONS MAINLY ALONG AND SOUTH OF INTERSTATE 20. /19/ && .PRELIMINARY POINT TEMPS/POPS... JACKSON 73 88 71 91 / 58 39 29 29 MERIDIAN 72 88 71 90 / 58 40 32 29 VICKSBURG 73 88 72 91 / 58 43 26 27 HATTIESBURG 74 89 73 88 / 62 73 53 57 NATCHEZ 72 88 73 89 / 61 68 41 49 GREENVILLE 71 90 69 92 / 27 20 9 13 GREENWOOD 70 90 69 93 / 25 14 11 10 && .JAN WATCHES/WARNINGS/ADVISORIES... MS...NONE. LA...NONE. AR...NONE. && 22/03/19
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 155 PM CDT WED JUN 30 2010 ARZ074-075-LAZ007>009-015-016-023>026-MSZ034>066-072>074-011845- ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-RICHLAND- MADISON LA-FRANKLIN LA-CATAHOULA-TENSAS-CONCORDIA-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- 155 PM CDT WED JUN 30 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHEAST ARKANSAS...NORTHEAST LOUISIANA...AND PORTIONS OF CENTRAL MISSISSIPPI. .DAY ONE...TONIGHT AND THURSDAY... SCATTERED TO NUMEROUS SHOWERS...AND ISOLATED THUNDERSTORMS...CAPABLE OF PRODUCING VERY HEAVY RAINFALL WILL BE POSSIBLE ACROSS PORTIONS OF THE OUTLOOK AREA THROUGH THIS EVENING AND AGAIN ON THURSDAY. THIS HEAVY RAINFALL COULD LEAD TO THE PONDING OF WATER ON AREAS ROADS... AS WELL AS LOCALIZED FLOODING IN LOW LYING AND POOR DRAINAGE AREAS. .DAYS TWO THROUGH SEVEN...THURSDAY NIGHT THROUGH TUESDAY... THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .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 TUESDAY. MSZ018-019-025>033-011845- BOLIVAR-SUNFLOWER-LEFLORE-GRENADA-CARROLL-MONTGOMERY-WEBSTER-CLAY- LOWNDES-CHOCTAW-OKTIBBEHA- 155 PM CDT WED JUN 30 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MISSISSIPPI.. .DAY ONE...TONIGHT AND THURSDAY... THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...THURSDAY NIGHT THROUGH TUESDAY... THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .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 TUESDAY. FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.SRH.NOAA.GOV/JAN. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK. 19
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 245 PM CDT WED JUN 30 2010 MSZ072-073-302045- LAMAR MS-MARION MS- 245 PM CDT WED JUN 30 2010 AN AREA OF SHOWERS...AND ISOLATED EMBEDDED THUNDERSTORMS...PRODUCING VERY HEAVY RAIN WAS LOCATED OVER MARION AND LAMAR COUNTIES AT 245 PM CDT. THIS ACTIVITY WAS MOVING WEST AT 10 MPH. RAINFALL AMOUNTS ON THE ORDER OF 1 TO 2 INCHES PER HOUR ARE POSSIBLE WITH THIS ACTIVITY...AND COULD LEAD TO THE PONDING OF WATER ON AREA ROADS...AS WELL AS LOCALIZED FLOODING IN LOW LYING AND POOR DRAINAGE AREAS. PEOPLE IN MARION AND LAMAR COUNTIES SHOULD MONITOR THIS ACTIVITY CLOSELY. 19
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
719 PM CDT WED JUN 30 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0715 PM FLASH FLOOD 5 NNW FLOWOOD 32.39N 90.13W
06/30/2010 HINDS MS NWS EMPLOYEE
WATER WAS REPORTED ACROSS SEVERAL STREETS IN NORTH
JACKSON...NEAR THE HINDS/MADISON COUNTY BORDER.
&&
DLThe Jackson/Brandon,MS radar (KDGX), 154 km away, was scanning. The volume nearest the first event began at 00:32 UTC.
1 flash flood. Local standard time, as filed.
Multiple streets were reported flooded around the city of Eudora.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arkansas in 2010Every state in 2010This day in weather historyWarnings in Arkansas, June 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: 246274.