An upper level low pressure system moving north from the Gulf of Mexico combined with a warm and unstable airmass over the region.
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.
An upper level low pressure system moving north from the Gulf of Mexico combined with a warm and unstable airmass over the region.
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 29, 12:46 PM CST, 1 hour 24 minutes earlier.
Area Forecast Discussion National Weather Service Jackson MS 146 PM CDT Thu Jun 29 2017 .UPDATE... Updated for 18Z aviation discussion && .AVIATION... 18Z TAF discussion: As an upper trough moves up from the southwest waves of rain will continue across the region. Instability have been limited, so thunder will be isolated through the early evening. Right now it looks like periods of rain will continue to impact areas from Columbus to Natchez through at least 3z. Although patchy fog can not be ruled out, expecting more stratus tonight with MVFR conditions for most locations. There should be a break in the rain for a few hours overnight with activity returning shortly after sunrise, mainly for the same area. && .DISCUSSION... Today and Tonight: Some showers have developed overnight in response to an upper-level trough of low pressure along the Gulf Coast. This system will lift northeastward over southern Louisiana and southeastern Mississippi, bringing scattered to numerous showers and a few thunderstorms to the area today. The highest POPs and likely highest rainfall accumulations through today and tonight will be found along and south of the trough's center - or across southeast Mississippi. Some locally heavy rainfall will be possible with any heavier showers or storms today due to PWAT values around 2 inches (+1 standard deviation), but do not anticipate much of a potential for storms to train over any one location. Therefore will not mention any flash flooding potential in the Hazardous Weather Outlook. The rain and increased cloud cover should limit high temperatures to near or below normal across the forecast area. /NF/ Friday through Wednesday: Southern edge of the mid level westerlies will exist over northern portions of the forecast area at the beginning of the period with weak ridging elsewhere. This should keep diurnal showers and thunderstorms more prominent over northern portions through the weekend and the heat moreso in the south. Somewhat concerned about wet microburst potential in the north where better lapse rates will exist. Local microburst parameter showing the best potential Sunday and Monday afternoons over these areas. Moving into the first of next week, mid level ridging over the north central Gulf of Mexico extending northward into the ArkLaMiss will lead to less diurnal activity and higher heat in these areas. Further east away from the ridging, better lapse rates will support a better coverage of mainly afternoon and evening showers and thunderstorms./26/ && .PRELIMINARY POINT TEMPS/POPS... Jackson 83 73 89 73 / 67 32 47 13 Meridian 80 72 87 72 / 91 46 59 17 Vicksburg 84 73 90 74 / 40 19 42 12 Hattiesburg 80 73 88 73 / 90 46 62 11 Natchez 82 74 89 74 / 83 26 42 9 Greenville 86 72 90 75 / 28 15 41 27 Greenwood 85 72 88 74 / 36 19 50 27 && .JAN WATCHES/WARNINGS/ADVISORIES... MS...None. LA...None. AR...None. && 07
Hazardous Weather Outlook National Weather Service Jackson MS 350 AM CDT Thu Jun 29 2017 ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074- 300900- 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- 350 AM CDT Thu Jun 29 2017 This hazardous weather outlook is for portions of southeast Arkansas, northeast Louisiana, central Mississippi, north central Mississippi, and south central 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. NF && ...HAZARD LEGEND... No short term hazards expected. ...USEFUL WEATHER WEB PAGES (URLS)... NWS JAN Home page... www.weather.gov/jan Stay Aware, Stay Safe NWS JAN Briefing Page... www.weather.gov/jan/safe Latest Weather Briefing... www.weather.gov/jan/weather_briefing Tropical page... www.weather.gov/jan/tropical National Hurricane Center Home Page... www.nhc.noaa.gov/ Find NWS JAN on Facebook... www.facebook.com/NWSJacksonMS Follow NWS JAN on Twitter... @NWSJacksonMS Follow NWS JAN on Youtube... www.youtube.com/user/NWSJacksonMiss
The Jackson/Brandon,MS radar (KDGX), 90 km away, was scanning. The volume nearest the first event began at 20:08 UTC.
1 thunderstorm wind. Local standard time, as filed.
A wood frame home that was in the middle of being remodeled was blown across the street. Some trees next to the home were blown down as well.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Mississippi in 2017Every state in 2017This day in weather historyWarnings in Mississippi, June 2017
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: 701170.