A complex of showers and thunderstorms moved into the ArkLaMiss region late on the 28th. These storms brought a swath of damaging winds to portions of the 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 JAN wrote it up.
A complex of showers and thunderstorms moved into the ArkLaMiss region late on the 28th. These storms brought a swath of damaging winds to portions of the area.
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 May 28, 8:13 PM CST, 19 minutes earlier.
Area Forecast Discussion National Weather Service Jackson MS 913 PM CDT Sun May 28 2017 .UPDATE... Updated for evening discussion. && .DISCUSSION... Expect showers and thunderstorms to move through the area tonight out ahead of an approaching cold front. Lows tonight will mainly be in the lower 70s. The only change to the forecast was to increase pops for this evening into the overnight. /27/ Prior discussion below: Tonight through Monday (Memorial Day): As the cold front moves towards the area, expect rain and storm chances to linger into Memorial Day on Monday. As a deep trough and cold front swings into the western Great Lakes, a lead shortwave will continue to eject northeast through the eastern Great Lakes into the northeast. This will continue to drag the cold front analyzed off to our northwest slowly to the southeast. However, the strongest forcing will remain off to the north, helping the cold front stall up in the ArkLaMiss Delta tomorrow. This should help moisture to linger in the 1.5-1.75 inch range. With vertical totals in the 26-28 deg C range, -3 to -4 Showalters, mid level lapse rates around 6-7 deg C and some 20-30kt 0-2km & 0-3km bulk shear, there seems to be enough to warrant leaving the marginal risk, especially across along and southeast of the ArkLaMiss Delta Monday afternoon. Updated the graphics and HWO to show the marginal risk for severe storms. With moisture being slightly lower, expecting the localized flooding risk to remain low. /DC/ Tomorrow night through the rest of the week: Rather wet and slightly cooler than average conditions generally look to be in the cards for the Lower Mississippi Valley through the period as perturbed southwesterly flow aloft continues. The best rain chances should be through Tuesday night or Wednesday as the front moving in tomorrow remains stalled in the vicinity. Owing to the mentioned boundary and better forcing expect showers and storms through midweek to not be exclusively diurnal, especially tomorrow night. Strong storms (and perhaps even a stray severe storm) will certainly not be out of the question, but in general the needed juxtaposition of shear and instability to warrant good confidence in severe weather is lacking. Once we get to later Wednesday, and definitely into Thursday and Friday, the frontal boundary will be less of a factor on our weather as it further weakens and generally drifts north of the region. At this point daytime temperatures may be able to get close to 90 in a few spots and with plenty of moisture in place the combination of warmth and humidity will both promote some sweating and build afternoon instability and trigger related scattered afternoon through early evening showers and thunderstorms). Looks like the best rain chances over this period will be focused toward northwestern zones. By the weekend another front will be approaching from the northwest and boosting rain chances again. Even though persistent rain chances through this week may start to get annoying it is worth pointing out that we will be shortly transitioning into June (and entering the season where one might think twice about wishing away rain and the associated opportunity for below normal temperatures). /BB && .AVIATION... 00Z TAF discussion: A threat for additional TSRA/SHRA will continue tonight through Memorial Day with the greatest threat generally along/south of the JAN/HKS to MEI corridor. Otherwise, redevelopment of lower (MVFR) ceilings should be most prominent late tonight through morning in roughly the same area with ceilings mixing up to VFR category late morning/afternoon. /EC/ && .PRELIMINARY POINT TEMPS/POPS... Jackson 70 82 68 80 / 72 63 50 63 Meridian 70 83 68 80 / 50 61 55 65 Vicksburg 69 82 68 81 / 83 62 47 56 Hattiesburg 71 84 69 82 / 50 63 50 65 Natchez 70 81 67 79 / 89 66 53 63 Greenville 69 82 67 83 / 63 56 33 36 Greenwood 69 82 66 81 / 60 57 38 42 && .JAN WATCHES/WARNINGS/ADVISORIES... MS...None. LA...None. AR...None. &&
Hazardous Weather Outlook National Weather Service Jackson MS 337 PM CDT Sun May 28 2017 ARZ074-075-LAZ007-MSZ018-019-025-026-034-292045- Ashley-Chicot-Morehouse-Bolivar-Sunflower-Leflore-Grenada- Washington- 337 PM CDT Sun May 28 2017 This hazardous weather outlook is for portions of southeast Arkansas, northeast Louisiana, north central Mississippi, and northwest Mississippi. .DAY ONE...Tonight and Monday SEVERE THUNDERSTORMS THREAT...Marginal TIMING...Late this evening into Tonight Isolated severe thunderstorms are possible mainly late this evening through tonight. The primary hazards with these storms will be damaging wind gusts and hail up to quarter size. (www.weather.gov/images/jan/graphicast/image2.png) .DAYS TWO THROUGH SEVEN...Monday night through Saturday 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 tonight. MSZ030>033-038-039-044>046-050>052-056>058-064>066-072>074-292045- Clay-Lowndes-Choctaw-Oktibbeha-Winston-Noxubee-Leake-Neshoba- Kemper-Scott-Newton-Lauderdale-Smith-Jasper-Clarke- Jefferson Davis-Covington-Jones-Marion-Lamar-Forrest- 337 PM CDT Sun May 28 2017 This hazardous weather outlook is for portions of central Mississippi, east central Mississippi, northeast Mississippi, south central Mississippi, and southeast Mississippi. .DAY ONE...Tonight and Monday SEVERE THUNDERSTORMS THREAT...Marginal TIMING...Monday Isolated severe thunderstorms are possible Monday afternoon into through the evening. The primary hazards with these storms will be damaging wind gusts and hail up to quarter size. (www.weather.gov/images/jan/graphicast/image2.png) .DAYS TWO THROUGH SEVEN...Monday night through Saturday Isolated severe thunderstorms are possible continuing Monday into the late evening hours. The primary hazards with these storms will be damaging wind gusts and hail up to quarter size. (www.weather.gov/images/jan/graphicast/image3.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 Monday through Monday night. LAZ008-009-015-016-023>026-MSZ027>029-035>037-040>043-047>049- 053>055-059>063-292045- West Carroll-East Carroll-Richland-Madison LA-Franklin LA- Catahoula-Tensas-Concordia-Carroll-Montgomery-Webster-Humphreys- Holmes-Attala-Issaquena-Sharkey-Yazoo-Madison MS-Warren-Hinds- Rankin-Claiborne-Copiah-Simpson-Jefferson-Adams-Franklin MS- Lincoln-Lawrence- 337 PM CDT Sun May 28 2017 This hazardous weather outlook is for portions of northeast Louisiana, central Mississippi, north central Mississippi, south central Mississippi, southwest Mississippi, and west central Mississippi. .DAY ONE...Tonight and Monday SEVERE THUNDERSTORMS THREAT...Marginal TIMING...Tonight through Monday Isolated severe thunderstorms are possible mainly late this evening through tonight and also again on Monday. The primary hazards with these storms tonight and Monday will be damaging wind gusts and hail up to quarter size. (www.weather.gov/images/jan/graphicast/image2.png) .DAYS TWO THROUGH SEVEN...Monday night through Saturday Isolated severe thunderstorms are possible continuing Monday into the late evening hours. The primary hazards with these storms will be damaging wind gusts and hail up to quarter size. (www.weather.gov/images/jan/graphicast/image3.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 tonight through Monday night. 23 && ...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. ...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 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 ...ADDITIONAL URLS FOR SEVERE WEATHER ISSUES... Storm Prediction Center (SPC)... www.spc.noaa.gov/ Meso Analysis... www.spc.noaa.gov/exper/mesoanalysis/ Day 1 through 3 Outlooks... www.spc.noaa.gov/products/outlook/ Storm Reports... www.spc.noaa.gov/climo/online/
Special Weather Statement
National Weather Service Jackson MS
850 PM CDT SUN MAY 28 2017
LAZ007-015-023-290245-
Richland LA-Morehouse LA-Franklin LA-
850 PM CDT SUN MAY 28 2017
...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN MOREHOUSE...
RICHLAND AND FRANKLIN PARISHES UNTIL 945 PM CDT...
At 849 PM CDT, Meteorologists were tracking strong thunderstorms
along a line extending from 7 miles south of Galion to 11 miles
northwest of Clarks. Movement was east at 30 mph.
Dime size hail and winds in excess of 40 mph will be possible with
these storms.
Strong thunderstorms will be near...
Buckner around 935 PM CDT.
Liddieville around 940 PM CDT.
Winnsboro and Mangham around 945 PM CDT.
Other locations impacted by these storms include Baskin, Perryville,
Collinston, Mer Rouge and Oak Ridge.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, 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.
&&
A severe thunderstorm watch remains in effect until 100 AM CDT for
northeastern Louisiana.
LAT...LON 3279 9161 3267 9163 3258 9159 3258 9153
3236 9145 3225 9156 3224 9151 3221 9155
3217 9149 3199 9190 3207 9193 3212 9187
3219 9201 3229 9203 3252 9190 3266 9191
3271 9204 3269 9205 3270 9205 3286 9207
TIME...MOT...LOC 0149Z 257DEG 26KT 3275 9177 3214 9229
DBSpecial Weather Statement
National Weather Service Jackson MS
906 PM CDT SUN MAY 28 2017
LAZ024-026-290300-
Catahoula LA-Concordia LA-
906 PM CDT SUN MAY 28 2017
...A STRONG THUNDERSTORM WILL AFFECT CONCORDIA AND CATAHOULA PARISHES
UNTIL 1000 PM CDT...
At 906 PM CDT, Meteorologists were tracking strong thunderstorms
along a line extending from 6 miles west of Liddieville to Ball.
Movement was east at 40 mph.
Dime size hail and wind gusts up to 50 mph will be possible with
these storms.
Strong thunderstorms will be near...
Larto around 950 PM CDT.
Mayna around 955 PM CDT.
Acme and New Era around 1000 PM CDT.
Other locations impacted by these storms include Harrisonburg, Sicily
Island and Ridgecrest.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, 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.
&&
A severe thunderstorm watch remains in effect until 100 AM CDT for
northeastern Louisiana...and southwestern Mississippi.
LAT...LON 3193 9200 3192 9183 3187 9178 3192 9160
3176 9156 3175 9148 3137 9152 3142 9157
3141 9158 3127 9153 3125 9166 3104 9156
3098 9166 3104 9165 3104 9172 3120 9168
3130 9191 3123 9192 3123 9198 3128 9202
TIME...MOT...LOC 0206Z 280DEG 37KT 3210 9196 3141 9244
DBThe Ft Polk radar (KPOE), 159 km away, was scanning. The volume nearest the first event began at 02:34 UTC.
2 thunderstorm wind. Local standard time, as filed.
Structural damage occurred in portions of the parish, with some homes damaged in Wisner and Gilbert.
Trees and power lines were blown down around the parish. A couple of homes were damaged in St. Joseph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Louisiana in 2017Every state in 2017This day in weather historyWarnings in Louisiana, May 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: 697854, 697855.