A cold front approached the region from the northeast on August 16th. As is common during the summertime, the cold front stalled before reaching the local area.
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 LIX wrote it up.
A cold front approached the region from the northeast on August 16th. As is common during the summertime, the cold front stalled before reaching the local area. This boundary began to slowly sag southward on the 17th. As storms developed in the vicinity of the stalled front, they began to intensity somewhat quickly. This was due to the fact that it was already in the afternoon hours and intense daytime heating substantially increased instability ahead of these southward moving storms. One storm strengthened enough to reach severe limits and produced damaging winds in Jackson 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 New Orleans, LA wrote its last area forecast discussion before the first event at Aug 17, 12:10 PM CST, 59 minutes earlier.
Area Forecast Discussion National Weather Service New Orleans LA 110 PM CDT Wed Aug 17 2022 .AVIATION...18Z TAF Package...Terminals are generally in VFR status but if the cu is directly over the ASOS a few sites may report MVFR cigs around 2k ft butit trully ius scattered out there. Convetion will likely hold off most of the day and may start to impact the region later afternoon or more so early evening. Outside of convection VFR conditions should persist for most terminals but can't rule out some tempo MVFR cigs around 2-3k ft. MCB again has the potential for reduced vsbys between 10-13z and low cigs. /CAB/ && .PREV DISCUSSION... /issued 615 AM CDT Wed Aug 17 2022/ AVIATION (12z TAFs)... VFR conditions will be the prevail condition at all terminals through this taf cycle. There could be some convection that forms near MCB after 00z, and PROB30 groups have been used with timing of when this activity should occur for each site. PREV DISCUSSION... /issued 400 AM CDT Wed Aug 17 2022/ SHORT TERM (Now through Thursday Night)... After some earlier convection over Plaquemines Parish and adjacent waters, mostly quiet conditions have evolved this morning. The overall current pattern is fairly interesting across the Lower Mississippi River Valley. A surface "frontal" boundary resides generally along and north of the I20 corridor. The front has become parallel to the H5 northwesterly flow, which typically is dry. Indeed, the 00z LIX RAOB does show quite a bit of mid and upper level dry air. However, this time of year impulses along this flow often utilize any boundary layer moisture available. That is what we are currently seeing with a thunderstorm complex riding down the front and courtesy of an upper level impulse within the northwesterly flow from north Arkansas. This feature in particular likely will not have any impacts on our region as guidance suggests it should weaken as it approaches later this morning or early afternoon. However, the outflow may help nudge the surface boundary a bit closer to our region late this afternoon or early evening allowing for convective development to occur, especially north and east of a line from Woodville to Hammond to Shell Beach. Timing certainly seems a bit later than normal. Surface winds should help keep the sea breeze pinned along the coast so no early afternoon convection expected along I10 in MS. Likewise the westerly flow over the LA Parishes looks to limit at least slightly the propagation of the Lake breeze. So, as the outflow from the early morning complex moves in, the atmosphere could be prime (no overturning) to allow for some at least isolated more robust convection to develop. Especially if these surface features collide. A strong to severe storm or two cannot be ruled out with strong winds and perhaps a few small hailstones or two not completely out of the question, especially along the MS Gulf Coast. With the sea breeze getting pinned closer to the MS Gulf Coast, expect little in the way of relief from heat this afternoon...at least until convection develops closer to evening. Because of this went ahead and placed portions of the MS Gulf Coast Counties in heat advisories. Max ApT's drop off the further west you go so held off for SE LA, but a short fused NPW cannot be ruled out for heat during the mid/late AM update. As the front (again motivated to move closer to our CWFA thanks to stronger outflow propagation from convection) there will be an enhancement of shower and thunderstorm activity through the remainder of the short term period. The front aided by modest H5 impulses from time to time will help generate a few opportunities for rainfall with the best potential aligned with the diurnal cycle. Of course hydro concerns will be possible, especially in the urban or more flood prone areas that get multiple storms in a short time. (Frye-28) LONG TERM (Friday through Tuesday)... Going into the upcoming weekend the upper level synoptic pattern still remains interesting. The subtropical high over the western Atlantic tries to nose into the region setting up an active southwesterly flow aloft. Upstream over the central United States a positively tilted trough will begin to dig southward in the the lower Missouri River Valley by late Friday and into Saturday. Locally, rain chances look to remain elevated especially during max insolation across the land based zones. Again, any ripple in the mid levels within the flow will hep enhance coverage for thunderstorms (again hydro concerns possible in those flood prone areas cannot be ruled out). At the surface, the residual front pretty much remains in place into the weekend. Eyes tend to catch the tropical features NHC is highlighting in the latest TWOs as it moves northwest into the Bay of Campeche and eventually toward the Rio Grande Valley. Globals vary on what exactly happens to this feature. One thing they tend to agree on is it appears to be very weak so any development should be limited. The ECM takes much of the moisture northwest into northern Mexico and into TX. The latest runs of the GFS brings the tropical moisture plume northward...is absorbed by the front/parent upper trough spreading southward out of the lower MO or Mid MS River Valley and carries the moisture north and eastward within the southwest flow aloft across much of the southeast. Confidence is low in terms of where this moisture will end up, however, taking out the disturbance altogether and there remains higher-end climo POPs given the active upper flow regime. The Subtropical ridge again tries to spread westward across the northern Gulf, but models are trending more and more south with this feature over time, which places our region on the wetter side again within that active western periphery. AVIATION (06z TAFs)... VFR conditions will prevail at all of the terminals through the entire forecast period. There could be some convection that forms near MCB after 03z, and VCTS wording has been put in the forecast to reflect this risk. However, confidence is too low to add a PROB30 or TEMPO group at this time. PG MARINE... A cold front will move southward and stall over or near our local waters through the rest of the week. Light to moderate winds will vary in direction from a southerly to a westerly and then eventually a northerly direction (through more erratic winds will be possible in and around convection that develops). In the strongest activity expect locally higher winds and seas along with frequent cloud-to-water lightning, waterspouts, and brief heavy rainfall. (Frye-28) && .PRELIMINARY POINT TEMPS/POPS... MCB 71 85 69 85 / 60 100 80 80 BTR 75 89 73 87 / 40 100 90 90 ASD 75 90 73 88 / 50 90 80 90 MSY 77 90 76 88 / 20 90 80 90 GPT 75 89 74 87 / 50 90 80 90 PQL 74 90 73 87 / 50 80 80 90 && .LIX WATCHES/WARNINGS/ADVISORIES... LA...None. GM...None. MS...Heat Advisory until 6 PM CDT this evening for MSZ077-080>082. GM...None. &&
The Mobile radar (KMOB), 36 km away, was scanning. The volume nearest the first event began at 19:09 UTC.
3 thunderstorm wind. Local standard time, as filed.
Trees were downed by thunderstorm winds on Donniebrook Lane as well as at the Riverbend Campground near Highway 613.
Broadcast media relayed pictures of a tree and metal roofing damage on Big Point Road.
Broadcast media relayed pictures of a tree down in Moss Point. Time and location estimated by radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Mississippi in 2022Every state in 2022This day in weather historyWarnings in Mississippi, August 2022
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: 1055206, 1055207, 1055208.