During the morning of July 2nd, a complex of thunderstorms developed along an old outflow boundary in northeast Mississippi and spread quickly southward through the day. Thunderstorms producing heavy rainfall and training over some areas resulted in flash flooding.
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.
During the morning of July 2nd, a complex of thunderstorms developed along an old outflow boundary in northeast Mississippi and spread quickly southward through the day. Thunderstorms producing heavy rainfall and training over some areas resulted in flash flooding. A few damaging wind gusts also occurred with this line of storms during the afternoon.
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 2, 5:00 AM CST, 4 hours 30 minutes earlier.
Area Forecast Discussion National Weather Service Jackson MS 600 AM CDT Thu Jul 2 2020 .UPDATE... Updated for 12Z aviation discussion && .AVIATION... 12Z TAF discussion: Mainly VFR conditions are prevailing this morning, but expect some MVFR category stratus to increase in coverage over the next few hours. SHRA/TSRA activity will increase later today after considerable heating/destabilization with potential for another MCS to affect the forecast area. Otherwise, surface winds will be mostly light outside of TSRA activity. /EC/ && .DISCUSSION... Today through tonight: The subtropical ridge axis has shifted west of the ArkLaMiss region, and cyclonic flow on the east side of the ridge promises to initiate more MCS activity over the forecast area for later today into tonight. The airmass is still recovering from an MCS yesterday evening that pushed through much of the area, and expect this will happen by this afternoon. With MLCAPE approaching 3000 J/kg and unseasonably significant deep layer shear helping to organize storms with intense updrafts, will maintain the marginal risk for severe storms and damaging wind gusts over most of the ArkLaMiss region. In addition, will maintain the limited risk for dangerous heat stress with heat indices expected to top out near 105 over western portions of the ArkLaMiss region. /EC/ Friday through Wednesday night...Weak surface and mid level troughing will prevail through the extended period. A combination of abundant moisture (PWATS >2.0 inches) and weak perturbations rotating around the trough, will promote afternoon and early evening showers and thunderstorms each day through the extended period. High temperatures on Friday will be in the low 90s across the area and this combined with dewpoints in the mid/upper 70s, will combine for heat indices around 105 degrees once again. Will extend the limited graphic for heat into Friday. Temperatures will cool slightly into the weekend with highs around 90 degrees and lows in the low 70s. These conditions will continue through the end of the period./15/ && .PRELIMINARY POINT TEMPS/POPS... Jackson 90 74 93 73 / 67 59 79 36 Meridian 89 72 93 72 / 65 46 68 32 Vicksburg 93 75 93 75 / 55 54 75 34 Hattiesburg 90 74 92 73 / 65 64 83 42 Natchez 91 74 91 73 / 46 48 75 42 Greenville 92 76 92 74 / 57 46 67 30 Greenwood 91 74 93 73 / 58 38 65 25 && .JAN WATCHES/WARNINGS/ADVISORIES... MS...None. LA...None. AR...None. &&
Hazardous Weather Outlook National Weather Service Jackson MS 434 AM CDT Thu Jul 2 2020 ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025-027-034>036- 040>043-047>049-053>055-059>064-030945- Ashley-Chicot-Morehouse-West Carroll-East Carroll-Richland- Madison LA-Franklin LA-Catahoula-Tensas-Concordia-Bolivar- Sunflower-Leflore-Carroll-Washington-Humphreys-Holmes-Issaquena- Sharkey-Yazoo-Madison MS-Warren-Hinds-Rankin-Claiborne-Copiah- Simpson-Jefferson-Adams-Franklin MS-Lincoln-Lawrence- Jefferson Davis- 434 AM CDT Thu Jul 2 2020 This hazardous weather outlook is for portions of southeast Arkansas, northeast Louisiana, central Mississippi, north central Mississippi, northwest Mississippi, south central Mississippi, southwest Mississippi, and west central Mississippi. .DAY ONE...Today and Tonight SEVERE THUNDERSTORMS THREAT...Marginal TIMING...Today through Tonight EXCESSIVE HEAT THREAT...Limited TIMING...Today There is a marginal risk today for isolated severe storms containing damaging wind gusts and hail, mainly for this afternoon into the early evening. In addition, heat stress may be a concern with heat indices approaching 105. (https://www.weather.gov/images/jan/graphicast/1.png) (https://www.weather.gov/images/jan/graphicast/2.png) .DAYS TWO THROUGH SEVEN...Friday through Wednesday Heat stress may continue to be a concern Friday. (https://www.weather.gov/images/jan/graphicast/1.png) (https://www.weather.gov/images/jan/graphicast/2.png) (https://www.weather.gov/images/jan/graphicast/2.png) .SPOTTER CALL TO ACTION STATEMENT... The activation of storm spotters, HAM radio operators, and emergency management personnel in support of severe weather operations may be needed for portions of the region today through tonight. MSZ026-029>033-038-039-030945- Grenada-Webster-Clay-Lowndes-Choctaw-Oktibbeha-Winston-Noxubee- 434 AM CDT Thu Jul 2 2020 This hazardous weather outlook is for portions of central Mississippi, east central Mississippi, north central Mississippi, and northeast Mississippi. .DAY ONE...Today and Tonight The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday 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 Wednesday. MSZ028-037-044>046-050>052-056>058-065-066-072>074-030945- Montgomery-Attala-Leake-Neshoba-Kemper-Scott-Newton-Lauderdale- Smith-Jasper-Clarke-Covington-Jones-Marion-Lamar-Forrest- 434 AM CDT Thu Jul 2 2020 This hazardous weather outlook is for portions of central Mississippi, east central Mississippi, north central Mississippi, south central Mississippi, and southeast Mississippi. .DAY ONE...Today and Tonight SEVERE THUNDERSTORMS THREAT...Marginal TIMING...Today through Tonight There is a marginal risk today for isolated severe storms containing damaging wind gusts and hail, mainly for this afternoon into the early evening. (https://www.weather.gov/images/jan/graphicast/1.png) .DAYS TWO THROUGH SEVEN...Friday through Wednesday 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 may be needed for portions of the region today through tonight. 21 && ...HAZARD LEGEND... *SEVERE THUNDERSTORMS* High...Significant severe thunderstorms are expected. Moderate...Severe storms expected with significant severe weather possible. Enhanced...Severe storms expected. Slight...Severe storms possible. Marginal...Isolated severe storms possible. *EXCESSIVE HEAT* Extreme...Maximum heat index greater than 110 degrees for 3 or more days in a row and/or air temperatures greater than 107 degrees. Significant...Maximum heat index greater than 110 degrees and/or air temperatures greater than 105 degrees. Elevated...Maximum heat index 105 to 110 degrees and/or air temperatures greater than 103 degrees. Limited...Maximum heat index near 105 degrees and/or air temperatures 100 to 103 degrees. ...USEFUL WEATHER WEB PAGES (URLS)... NWS JAN Home page... https://www.weather.gov/jan Stay Aware, Stay Safe NWS JAN Briefing Page... https://www.weather.gov/jan/safe Latest Weather Briefing... https://www.weather.gov/jan/weather_briefing Tropical page... https://www.weather.gov/srh/tropical?office=jan National Hurricane Center Home Page... https://www.nhc.noaa.gov/ Find NWS JAN on Facebook... https://www.facebook.com/NWSJacksonMS Follow NWS JAN on Twitter... @NWSJacksonMS Follow NWS JAN on Youtube... https://www.youtube.com/user/NWSJacksonMiss ...ADDITIONAL URLS FOR SEVERE WEATHER ISSUES... Storm Prediction Center (SPC)... https://www.spc.noaa.gov/ Meso Analysis... https://www.spc.noaa.gov/exper/mesoanalysis/ Day 1 through 3 Outlooks... https://www.spc.noaa.gov/products/outlook/ Storm Reports... https://www.spc.noaa.gov/climo/online/
Special Weather Statement National Weather Service Jackson MS 920 AM CDT Thu Jul 2 2020 MSZ051-057-021500- Newton MS-Jasper MS- 920 AM CDT Thu Jul 2 2020 ...A STRONG THUNDERSTORM WILL AFFECT NORTHERN JASPER AND SOUTHERN NEWTON COUNTIES UNTIL 1000 AM CDT... At 920 AM CDT, Meteorologists were tracking a strong thunderstorm over Decatur, or 10 miles north of Newton, moving south at 35 mph. Winds in excess of 40 mph will be possible with this storm. This strong thunderstorm will be near... Newton and Lawrence around 935 AM CDT. Garlandville around 950 AM CDT. Other locations impacted by this storm include Chunky and Hickory. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. 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. && LAT...LON 3214 8932 3240 8932 3241 8892 3215 8892 TIME...MOT...LOC 1420Z 355DEG 29KT 3247 8911 TW
Special Weather Statement
National Weather Service Jackson MS
932 AM CDT Thu Jul 2 2020
MSZ038-021500-
Winston MS-
932 AM CDT Thu Jul 2 2020
...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN WINSTON COUNTY
UNTIL 1000 AM CDT...
At 932 AM CDT, Meteorologists were tracking a strong thunderstorm
near Betheden, or 7 miles northeast of Louisville, moving south at 15
mph.
Winds in excess of 40 mph will be possible with this storm.
This strong thunderstorm will be near...
Louisville around 945 AM CDT.
Millcreek around 950 AM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
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.
&&
LAT...LON 3305 8911 3328 8911 3329 8910 3329 8890
3305 8888
TIME...MOT...LOC 1432Z 353DEG 14KT 3321 8899
TWPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
933 AM CDT THU JUL 2 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0722 PM FLASH FLOOD 1 SW LOUISVILLE 33.11N 89.07W
07/01/2020 WINSTON MS FIRE DEPT/RESCUE
TWO FEET OF WATER WAS NOTED AT THE
INTERSECTION OF HUNT AVENUE AND AMERSON
STREET. THERE WAS ALSO FLOODING ALONG MOUNT
MORIAH CIRCLE ALONG WITH A HOME RESCUE.
&&
JCSpecial Weather Statement National Weather Service Jackson MS 957 AM CDT Thu Jul 2 2020 MSZ057-021545- Jasper MS- 957 AM CDT Thu Jul 2 2020 ...A STRONG THUNDERSTORM WILL AFFECT NORTHERN JASPER COUNTY UNTIL 1045 AM CDT... At 956 AM CDT, Meteorologists were tracking a strong thunderstorm near Garlandville, or 9 miles southeast of Newton, moving south at 20 mph. Dime size hail and winds in excess of 40 mph will be possible with this storm. This strong thunderstorm will be near... Rose Hill around 1010 AM CDT. Orange around 1020 AM CDT. Other locations impacted by this storm include Montrose and Louin. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. 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. && LAT...LON 3203 8932 3222 8932 3222 8891 3205 8891 TIME...MOT...LOC 1456Z 354DEG 16KT 3220 8907 TW
Special Weather Statement
National Weather Service Jackson MS
1000 AM CDT Thu Jul 2 2020
MSZ038-045-021545-
Neshoba MS-Winston MS-
1000 AM CDT Thu Jul 2 2020
...A STRONG THUNDERSTORM WILL AFFECT WINSTON AND NORTHERN NESHOBA
COUNTIES UNTIL 1045 AM CDT...
At 1000 AM CDT, Meteorologists were tracking a strong thunderstorm
near Center Ridge, or 8 miles south of Louisville, moving south at 30
mph.
Winds in excess of 40 mph will be possible with this storm.
This strong thunderstorm will be near...
Nanih Waiya and Stallo around 1010 AM CDT.
Burnside around 1020 AM CDT.
Forestdale around 1030 AM CDT.
Philadelphia around 1035 AM CDT.
Other locations impacted by this storm include Noxapater.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
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.
&&
LAT...LON 3293 8891 3273 8892 3274 8932 3311 8932
3311 8922 3319 8921 3320 8889 3293 8888
TIME...MOT...LOC 1500Z 359DEG 26KT 3300 8906
TWSpecial Weather Statement
National Weather Service Jackson MS
1028 AM CDT Thu Jul 2 2020
MSZ057-066-021615-
Jones MS-Jasper MS-
1028 AM CDT Thu Jul 2 2020
...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN JASPER AND NORTHERN
JONES COUNTIES UNTIL 1115 AM CDT...
At 1028 AM CDT, Meteorologists were tracking a strong thunderstorm
near Turnerville, or 11 miles northeast of Stringer, moving south at
25 mph.
Winds in excess of 40 mph will be possible with this storm.
This strong thunderstorm will be near...
Heidelberg around 1045 AM CDT.
Moss around 1055 AM CDT.
Sandersville around 1100 AM CDT.
Other locations impacted by this storm include Soso.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
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.
&&
LAT...LON 3182 8894 3177 8894 3174 8931 3203 8932
3205 8891 3183 8891
TIME...MOT...LOC 1528Z 355DEG 23KT 3199 8912
TWThe Jackson/Brandon,MS radar (KDGX), 104 km away, was scanning. The volume nearest the first event began at 15:29 UTC.
4 flash flood, 1 thunderstorm wind. Local standard time, as filed.
Several roads were flooded in southwestern Winston County.
Several roads were flooded in the Philadelphia area.
A portion of Pear Orchard Road was flooded.
A tree was blown down onto a house along First Street.
Water flowed over a portion of Big Mound Road on the southwest side of Bentonia.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Mississippi in 2020Every state in 2020This day in weather historyWarnings in Mississippi, July 2020
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: 909949, 909947, 909958, 909994, 909974.