A cold front generated a line of severe storms that produced wind damage and heavy rain across portions of the Midsouth on the afternoon of June 18th.
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 MEG wrote it up.
A cold front generated a line of severe storms that produced wind damage and heavy rain across portions of the Midsouth on the afternoon of June 18th.
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 Memphis, TN wrote its last area forecast discussion before the first event at Jun 18, 11:20 AM CST, 2 hours 22 minutes earlier.
Area Forecast Discussion National Weather Service Memphis TN 1220 PM CDT Sun Jun 18 2017 .UPDATE... Updated to include the 18z aviation discussion below. && .PREV DISCUSSION... /issued 1020 AM CDT Sun Jun 18 2017/ DISCUSSION...Surface analysis this morning places a cold front from Chicago through St. Louis and then through Fayetteville, Arkansas. Isolated showers and thunderstorms are occurring over Southeast Missouri and a convective line over portions of West/Northwest Arkansas. As of 10 AM CDT, temperatures across the Mid-South range from the upper 70s to lower 80s across many locations. Latest mesoanalysis indicates an warm, moist, and unstable atmosphere across the Mid-South this morning with surface based CAPE values already in the 2000-2500 J/kg range, LI's of -5 to -6, and precipitable water values approaching 2 inches. Instability is expected to increase into this afternoon with conditions remaining favorable for strong to severe thunderstorms across the Mid-South this afternoon into perhaps this evening. Damaging winds will remain the predominant threat for any thunderstorms that reach severe limits. In addition, high atmospheric moisture content will be conducive for heavy rainfall. Forecast was already updated to account for short term trends and to account for severe thunderstorm watch in effect until 4 pm CDT up to the Mississippi River thus far. CJC PREV DISCUSSION... /issued 426 AM CDT Sun Jun 18 2017/ DISCUSSION... Currently...Very muggy night underway across the Mid-South with dewpoints in the mid 70s across much of the Delta. High clouds have spilled south from upstream convective complexes otherwise it is quiet weather wise...for the moment. Today through Monday...A cold front from the Great Lakes to the southern plains will slowly press south into the region with multiple rounds of convection possible. A good deal of convection has already developed across OK/KS/MO along and ahead of the front. The airmass across the Mid-South is quite unstable at this hour with SBCAPES above 2000 J/KG across much of the Delta region and fairly steep mid level lapse rates of 7 C/KM. Latest CAMs show a line of thunderstorms driven SE by a cold pool across the Mid- South this morning reaching NE Mississippi early this afternoon. These storms could produce damaging winds given the instability in place. As the cold front presses south later this afternoon and the airmass recharges with additional development that will continue into the overnight hours. PWs climb to over 2 inches ahead of the front and given the slow moving nature of the front training is possible. Considered a Flash Flood watch for this afternoon into tonight but will defer to the day shift to see how today's convection evolves. For now will continue to mention isolated flash flooding in the HWO. Some severe potential will continue into the overnight hours as well. The long wave trough over the central states will provide some upper support with a belt of stronger mid level winds pressing south into the area. However, a lot will depend on the extent the airmass can destabilize again after this morning's convection. Rain chances will slowly taper off from NW to SE later tonight into Monday as the front gradually exits. A marginal risk for severe weather continues across NE Mississippi into Monday. Monday night through Wednesday...High pressure will build over the area. Some patchy fog is possible Monday night. Tuesday and Wednesday will be quite pleasant with lower humidities. Thursday through Saturday...Quite a bit of uncertainty in this time frame. Low pressure in the Gulf of Mexico may track into Florida or Texas with large implication to the Mid-South forecast especially in the Thu-Fri time frame. For now will continue to introduce low pops with increasing humidity. By Saturday the medium range models are trending wetter with a cold front approaching so increased pops a bit. SJM && .AVIATION... /18z TAFs/ The primary aviation concern over the next 12 hours is the complex of storms moving across central AR at this time. These storms are expected to continue an easterly progression, affecting the Mid- South forecast terminals throughout the afternoon hours. Gusty west to northwest winds and tempo IFR conditions are likely with this line of storms. Additional showers and thunderstorms, and potentially an area of lingering stratiform rain, are possible through the afternoon and evening hours with more development possible overnight as a weak cold front moves across the area. This will shift winds from the northwest at 5-10 mph for Monday morning. Johnson && .MEG WATCHES/WARNINGS/ADVISORIES... AR...None. MO...None. MS...None. TN...None. &&
Hazardous Weather Outlook National Weather Service Memphis TN 435 AM CDT Sun Jun 18 2017 ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115- MSZ001>017-020>024-TNZ001>004-019>022-048>055-088>092-191145- Alcorn-Benton MS-Benton TN-Calhoun-Carroll-Chester-Chickasaw-Clay- Coahoma-Craighead-Crittenden-Crockett-Cross-DeSoto-Decatur- Dunklin-Dyer-Fayette-Gibson-Greene-Hardeman-Hardin-Haywood- Henderson-Henry-Itawamba-Lafayette-Lake-Lauderdale-Lawrence- Lee AR-Lee MS-Madison-Marshall-McNairy-Mississippi-Monroe-Obion- Panola-Pemiscot-Phillips-Poinsett-Pontotoc-Prentiss-Quitman- Randolph-Shelby-St. Francis-Tallahatchie-Tate-Tippah-Tipton- Tishomingo-Tunica-Union-Weakley-Yalobusha- 435 AM CDT Sun Jun 18 2017 This hazardous weather outlook is for portions of East Arkansas... the Missouri Bootheel...North Mississippi...and West Tennessee. .DAY ONE...Today and Tonight There is a slight risk of severe weather across the Mid-South today and tonight as a cold front moves through the region. Multiple rounds of thunderstorms are possible today into tonight. Damaging winds are the main threat. Large hail is a secondary threat. The front will move slowly so flash flooding is also possible. .DAYS TWO THROUGH SEVEN...Monday through Saturday There is a marginal risk for severe weather across Northeast Mississippi on Monday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required today through Monday. SJM
Special Weather Statement National Weather Service Memphis TN 106 PM CDT SUN JUN 18 2017 ARZ027-181830- Poinsett AR- 106 PM CDT SUN JUN 18 2017 ...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 130 PM CDT FOR... Western Poinsett County in eastern Arkansas... At 106 PM CDT...a strong thunderstorm producing pea size hail or larger and winds at least 40 mph was located over Weiner, or 9 miles northwest of Harrisburg, moving east at 15 mph. Very heavy rain along with continuous cloud to ground lightning are also possible with this thunderstorm. People in western Poinsett County should monitor this storm closely. LAT...LON 3571 9104 3571 9057 3556 9058 3544 9104 TIME...MOT...LOC 1806Z 270DEG 12KT 3562 9087 JOHNSON
Special Weather Statement
National Weather Service Memphis TN
156 PM CDT SUN JUN 18 2017
ARZ049-058-181930-
Phillips AR-Lee AR-
156 PM CDT SUN JUN 18 2017
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 230 PM CDT
FOR...
Phillips County in eastern Arkansas...
Lee County in eastern Arkansas...
At 156 PM CDT...strong thunderstorms were producing pea size hail or
larger and winds at least 40 mph was located along a line extending
from Haynes to near Elaine. Movement was east at 30 mph.
Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.
People in Phillips and Lee Counties should monitor this storm
closely.
LAT...LON 3434 9105 3434 9100 3447 9100 3447 9104
3491 9094 3490 9048 3480 9051 3478 9055
3475 9054 3473 9057 3469 9054 3467 9059
3459 9057 3432 9066 3431 9066 3432 9069
3437 9068 3437 9076 3430 9075 3428 9108
TIME...MOT...LOC 1856Z 264DEG 27KT 3490 9078 3432 9092
JOHNSONThe Memphis radar (KNQA), 29 km away, was scanning. The volume nearest the first event began at 19:39 UTC.
7 thunderstorm wind, 3 flash flood. Local standard time, as filed.
Traffic light damaged from winds at the intersection of Main street and G.E. Patterson.
Downed large tree caused damage to two homes in Midtown.
Large tree and power lines downed near the intersection of Riverdale Road and Oak Run Drive.
Two trees down along Airline Road about one mile south of Donelson.
Several large trees and power lines downed near the intersection of Highway 70 and Finde Naifeh Drive.
Several trees snapped along Ebenezer Loop just east of Williston.
Trees reported down with one tree falling on a shed.
Water over the road on Highway 45 between Dyer and Rutherford.
Apartment complex being evacuated due to flooding.
Water covering the road on Horeshoe Loop.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2017Every state in 2017This day in weather historyWarnings in Tennessee, 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: 700464, 700466, 700468, 700469, 700470, 700471, 700472, 700473, 700474, 700475.