Afternoon showers and storms developed and brought damaging winds to portions of 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.
Afternoon showers and storms developed and brought damaging winds to portions of 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 Jul 28, 2:48 PM CST, 7 minutes earlier.
Area Forecast Discussion National Weather Service Jackson MS 348 PM CDT Sat Jul 28 2018 .DISCUSSION... Tonight and Sunday: Convection continues to refire on outflow from earlier convection over south AR. This should continue to be the trend through the rest of the afternoon into early evening as 0-3km bulk shear vectors steer the majority over the southwestern third where the deepest moisture and instability currently exists. Thereafter, convection will wind down with the loss of heating. GFS continues to show very perturbed northwest mid level flow over the forecast area in the short term, which will continue to aid in mostly diurnal convective activity again Sunday. This looks to continue to be most concentrated over the southwestern half as the wedge of low level dry air continues to hold on over the northeast. Though heating got off to a slow start due to morning cloud cover, heat indices have still managed to rise into the lower 100s over east central Louisiana and southwest Mississippi. This area and areas further to the north and east will see similar conditions Sunday as lack of cloud cover Sunday morning will allow heating to get an earlier start. Maximums near 95 will combine with low to mid 70s dewpoints to push heat indices to near 105./26/ Monday through Wednesday: A sharper upper trough/mid level shortwave will carve out of the longer wave trough over the eastern CONUS on Monday and track from the Upper Plains into the Mississippi River Valley through midweek. Ahead of this feature, lingering relative dryness over mainly northeastern portions of the area will be replaced by an influx of richer deep layer moisture. This surge in moisture will occur in earnest from Monday afternoon into Tuesday ahead of an approaching cold front associated with the aforementioned mid/upper level features. This will bring increasing chances for showers and storms, mainly beginning later on Monday and especially on Tuesday. There is some uncertainty with how potent this system will be, with the ECMWF and GEM depicting a more organized surface cyclone, but there is decent model agreement with respect to the timing and placement of the front. There is also good agreement in a deep upper trough with anomalous mid level height falls and deep layer shear for this time of year. Though there is inherent uncertainty about the evolution of convection during this time frame (whether earlier convection might disrupt heating/instability, etc), with the other factors in play favoring better storm organization, conditions will be more favorable for severe thunderstorms than on a typical summer day. SPC has outlooked a marginal risk for severe storms for Day 3 (Monday). We might have slightly greater potential in our area on Tuesday, so we'll update the HWO include mention of a threat for isolated severe storms Monday into Tuesday. We'll be able to refine timing/location details of this threat in the coming days. The upper trough will hang up over our region and become more shallow as we head into the second half of the week. As this happens, the surface front will stall across our area Tuesday into Wednesday. This should still allow a drier airmass to work into a good chunk of the area, with reduced rain chances and slightly cooler/less hot conditions especially over the northwest half by Wednesday. Decent rain chances may very well stick around the I-59 corridor, however, due to the front stalling. Thursday through next Saturday: The front will begin to dissipate as it remains stalled across our region, but a regime of generally greater deep layer moisture in the SE versus less in the NW will persist through the end of the week. POPs will also follow that theme of greater in our southeast, but temps will steadily increase areawide as the airmass gradually becomes modified through the end of the week. /DL/ && .AVIATION... 18Z TAF discussion: Scattered showers and thunderstorms will continue to develop this afternoon mainly in the vicinities of GLH, GWO, JAN, HKS, PIB and HBG. Where storms occur, brief reductions in ceiling and visibility can be expected. Otherwise, VFR conditions will prevail through the period./26/ && .PRELIMINARY POINT TEMPS/POPS... Jackson 72 94 73 92 / 37 32 13 63 Meridian 72 95 72 94 / 12 19 14 48 Vicksburg 72 93 74 91 / 32 29 14 66 Hattiesburg 73 95 73 94 / 23 39 16 54 Natchez 73 93 74 92 / 31 36 18 64 Greenville 70 90 73 88 / 17 27 24 70 Greenwood 70 92 72 90 / 15 16 18 65 && .JAN WATCHES/WARNINGS/ADVISORIES... MS...None. LA...None. AR...None. && 26/DL
Hazardous Weather Outlook National Weather Service Jackson MS 235 PM CDT Sat Jul 28 2018 ARZ074-075-LAZ007>009-MSZ018-019-025>046-049>052-056>058-065-066- 291945- Ashley-Chicot-Morehouse-West Carroll-East Carroll-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- Rankin-Scott-Newton-Lauderdale-Smith-Jasper-Clarke-Covington- Jones- 235 PM CDT Sat Jul 28 2018 This hazardous weather outlook is for portions of southeast Arkansas, northeast Louisiana, central Mississippi, north central Mississippi, and southeast Mississippi. .DAY ONE...Tonight and Sunday The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Sunday night through Friday 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 Friday. LAZ015-016-023>026-MSZ047-048-053>055-059>064-072>074-291945- Richland-Madison LA-Franklin LA-Catahoula-Tensas-Concordia-Warren- Hinds-Claiborne-Copiah-Simpson-Jefferson-Adams-Franklin MS- Lincoln-Lawrence-Jefferson Davis-Marion-Lamar-Forrest- 235 PM CDT Sat Jul 28 2018 This hazardous weather outlook is for portions of northeast Louisiana, central Mississippi, south central Mississippi, and west central Mississippi. .DAY ONE...Tonight and Sunday EXCESSIVE HEAT THREAT...Limited TIMING...mainly Sunday afternoon Temperatures in the low to mid 90s will combine with high humidity to produce heat indices near 105 degrees. Precautions should be taken to avoid heat stress. Stay hydrated and wear light, loose fitted clothing. (https://www.weather.gov/images/jan/graphicast/1.png) .DAYS TWO THROUGH SEVEN...Sunday night through Friday Temperatures in the low to mid 90s will combine with high humidity to produce heat indices near 105 degrees again Monday afternoon. Precautions should be taken to avoid heat stress. Stay hydrated and wear light, loose fitted clothing. (https://www.weather.gov/images/jan/graphicast/1.png) .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 Friday. 26 && ...HAZARD LEGEND... *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/jan/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
Special Weather Statement National Weather Service Jackson MS 321 PM CDT SAT JUL 28 2018 MSZ048-282100- Hinds MS- 321 PM CDT SAT JUL 28 2018 ...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN HINDS COUNTY UNTIL 400 PM CDT... At 321 PM CDT, Meteorologists were tracking a strong thunderstorm over Utica, or 16 miles northwest of Crystal Springs, moving northeast at 10 mph. Dime size hail and winds in excess of 40 mph will be possible with this storm. This storm will remain over mainly rural areas of southwestern Hinds County, including the following locations... Learned. 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. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3206 9059 3210 9066 3224 9063 3216 9045 TIME...MOT...LOC 2021Z 210DEG 7KT 3213 9059 17
Special Weather Statement
National Weather Service Jackson MS
329 PM CDT SAT JUL 28 2018
LAZ025-MSZ053-282115-
Tensas LA-Claiborne MS-
329 PM CDT SAT JUL 28 2018
...A STRONG THUNDERSTORM WILL AFFECT CENTRAL TENSAS PARISH IN
NORTHEASTERN LOUISIANA AND SOUTHWESTERN CLAIBORNE COUNTIES UNTIL 415
PM CDT...
At 328 PM CDT, Meteorologists were tracking a strong thunderstorm
near St. Joseph, or 26 miles northeast of Ferriday, moving east at 15
mph.
Winds in excess of 40 mph will be possible with this storm.
This strong thunderstorm will be near...
Lake Bruin around 335 PM CDT.
St. Joseph around 340 PM CDT.
Alcorn around 400 PM 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.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3203 9142 3208 9110 3187 9109 3187 9126
3186 9127 3185 9142
TIME...MOT...LOC 2028Z 264DEG 14KT 3195 9129
17Special Weather Statement
National Weather Service Jackson MS
335 PM CDT SAT JUL 28 2018
MSZ035-041-282100-
Sharkey MS-Humphreys MS-
335 PM CDT SAT JUL 28 2018
...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL HUMPHREYS AND
NORTHEASTERN SHARKEY COUNTIES UNTIL 400 PM CDT...
At 335 PM CDT, Meteorologists were tracking a strong thunderstorm
near Murphy, or 10 miles west of Belzoni, moving east at 15 mph.
Dime size hail and winds in excess of 40 mph will be possible with
this storm.
This strong thunderstorm will be near...
Midnight around 350 PM 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.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3324 9054 3304 9051 3304 9072 3310 9073
3310 9068 3311 9068 3312 9069 3312 9070
3314 9070 3317 9068 3319 9069 3319 9068
3321 9069
TIME...MOT...LOC 2035Z 263DEG 14KT 3313 9065
17Special Weather Statement
National Weather Service Jackson MS
342 PM CDT SAT JUL 28 2018
LAZ009-MSZ040-041-282115-
East Carroll LA-Sharkey MS-Issaquena MS-
342 PM CDT SAT JUL 28 2018
...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN EAST CARROLL
PARISH...CENTRAL ISSAQUENA AND SOUTHWESTERN SHARKEY COUNTIES UNTIL
415 PM CDT...
At 342 PM CDT, Meteorologists were tracking a strong thunderstorm
over Fitler, or 8 miles northwest of Valley Park, moving east at 15
mph.
Dime size hail and wind gusts up to 50 mph will be possible with this
storm.
This strong thunderstorm will be near...
Onward around 355 PM CDT.
Other locations impacted by this storm include Cary.
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.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3285 9112 3290 9087 3255 9090 3255 9096
3258 9096 3258 9104 3256 9107 3256 9111
TIME...MOT...LOC 2042Z 263DEG 14KT 3269 9100
17Special Weather Statement
National Weather Service Jackson MS
344 PM CDT SAT JUL 28 2018
MSZ040-047-282115-
Warren MS-Issaquena MS-
344 PM CDT SAT JUL 28 2018
...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL WARREN AND SOUTH
CENTRAL ISSAQUENA COUNTIES UNTIL 415 PM CDT...
At 344 PM CDT, Meteorologists were tracking a strong thunderstorm
near Redwood, moving east at 15 mph.
Dime size hail and wind gusts up to 50 mph will be possible with this
storm.
This strong thunderstorm will be near...
Redwood around 405 PM 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.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3255 9097 3257 9081 3240 9079 3240 9097
3242 9097 3242 9096 3244 9097
TIME...MOT...LOC 2044Z 263DEG 14KT 3249 9091
17Special Weather Statement
National Weather Service Jackson MS
353 PM CDT SAT JUL 28 2018
MSZ042-282145-
Yazoo MS-
353 PM CDT SAT JUL 28 2018
...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN YAZOO COUNTY UNTIL
445 PM CDT...
At 353 PM CDT, Meteorologists were tracking a strong thunderstorm 8
miles northwest of Phoenix, or 14 miles east of Valley Park, moving
east at 15 mph.
Dime size hail and winds in excess of 40 mph will be possible with
this storm.
This strong thunderstorm will be near...
Tinsley around 430 PM CDT.
Other locations impacted by this storm include Satartia.
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.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3289 9050 3258 9039 3258 9041 3259 9044
3257 9045 3255 9065 3256 9065 3259 9066
3259 9067 3266 9069 3267 9066 3269 9066
3271 9070 3275 9071 3277 9069 3279 9072
TIME...MOT...LOC 2053Z 263DEG 14KT 3269 9063
17The Jackson/Brandon,MS radar (KDGX), 97 km away, was scanning. The volume nearest the first event began at 20:55 UTC.
3 thunderstorm wind. Local standard time, as filed.
A tree was blown down in Eagle Lake.
A tree was blown down on a car on Dana Road.
Six power poles were blown down on Highway 49 near Richland.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Mississippi in 2018Every state in 2018This day in weather historyWarnings in Mississippi, July 2018
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: 760979, 760980, 760981.