Alert archive / Tennessee / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 227, NWS Memphis, TN

June 24, 2018Fayette County, Shelby County, Tipton County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Jun 24, 2018, 4:37 AM CDT for Fayette County, Shelby County, Tipton County, Tennessee. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 24, 2018, 4:37 AM CDT (09:37 UTC)
Expired: Jun 24, 2018, 5:15 AM CDT
In force: 38 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Fayette County, TN, Shelby County, TN, Tipton County, TN

The radar

The Memphis radar (KNQA), 18 km from the middle of the area, began a volume at 09:37 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Little Rock, AR (KBYH), launched 00:00Z, 9.6 hours before the alert went out and 57 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1020 J/kg
Mixed-layer CIN: -199 J/kg
Mixed-layer LCL: 1488 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 156 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Jun 24, 4:25 AM CDT, 12 minutes earlier.

Area forecast discussion, Jun 24, 4:25 AM CDT, 12 minutes before

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Hazardous weather outlook, Jun 24, 3:20 AM CDT, 1 hour 17 minutes before

Hazardous Weather Outlook
National Weather Service Memphis TN
320 AM CDT Sun Jun 24 2018

ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-
MSZ001>017-020>024-TNZ001>004-019>022-048>055-088>092-251030-
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-
320 AM CDT Sun Jun 24 2018

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 thunderstorms through tonight
for areas north of Interstate 40. There is a Marginal Risk for
severe thunderstorms through tonight for areas along and
immediately south of Interstate 40.

Severe thunderstorm chances will peak in the afternoon through
late evening.

Damaging winds will be the primary severe weather threat.
Secondary severe weather threats include large hail and heavy
rainfall sufficient to produce localized flash flooding.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There is a Marginal Risk for severe thunderstorms over northwest
Tennessee early Monday. Damaging winds will be the primary severe
weather threat.

Afternoon heat indices may reach or exceed 105 degrees over
eastern Arkansas on Tuesday, and over the remainder of the
Midsouth through Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed over areas to the north of
Interstate 40 through late this evening.

PWB

In the hours before

Special weather statement, Jun 24, 1:31 AM CDT, 3 hours 6 minutes before

Special Weather Statement
National Weather Service Memphis TN
131 AM CDT SUN JUN 24 2018

ARZ036-049-MSZ001-007-008-240715-
Lee AR-Crittenden AR-Tunica MS-DeSoto MS-Tate MS-
131 AM CDT SUN JUN 24 2018

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 215 AM CDT
FOR...

Northeastern Lee County in eastern Arkansas...
South central Crittenden County in eastern Arkansas...
Northern Tunica County in northwestern Mississippi...
Western DeSoto County in northwestern Mississippi...
Northwestern Tate County in northwestern Mississippi...

At 130 AM CDT...a strong thunderstorm producing pea size hail or
larger and winds at least 40 mph was located 7 miles west of
Robinsonville, or 10 miles south of Hughes, moving east at 20 mph.

Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.

People in northeastern Lee...south central Crittenden...northern
Tunica...western DeSoto and northwestern Tate Counties should monitor
this storm closely.

LAT...LON 3489 9052 3491 9042 3490 9041 3491 9041
      3497 9005 3467 9004 3474 9052
TIME...MOT...LOC 0630Z 265DEG 18KT 3479 9044

Special weather statement, Jun 24, 3:14 AM CDT, 1 hour 23 minutes before

Special Weather Statement
National Weather Service Memphis TN
314 AM CDT SUN JUN 24 2018

MSZ001-008-240900-
DeSoto MS-Tate MS-
314 AM CDT SUN JUN 24 2018

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 400 AM CDT
FOR...

Central DeSoto County in northwestern Mississippi...
Northern Tate County in northwestern Mississippi...

At 314 AM CDT...a strong thunderstorm producing pea size hail or
larger and winds at least 40 mph was located near Eudora, or 8 miles
southwest of Hernando, moving east at 15 mph.

Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.

People in central DeSoto and northern Tate Counties should monitor
this storm closely.

LAT...LON 3497 8986 3471 8978 3467 9013 3479 9020
      3485 9020
TIME...MOT...LOC 0814Z 254DEG 12KT 3478 9011

Special weather statement, Jun 24, 3:25 AM CDT, 1 hour 12 minutes before

Special Weather Statement
National Weather Service Memphis TN
325 AM CDT SUN JUN 24 2018

ARZ027-035-036-048-240915-
Poinsett AR-St. Francis AR-Cross AR-Crittenden AR-
325 AM CDT SUN JUN 24 2018

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 415 AM CDT
FOR...

Southeastern Poinsett County in eastern Arkansas...
Northwestern St. Francis County in eastern Arkansas...
Cross County in eastern Arkansas...
Northwestern Crittenden County in eastern Arkansas...

At 325 AM CDT...strong thunderstorms were producing pea size hail or
larger and winds at least 40 mph was located along a line extending
from 6 miles southeast of Hickory Ridge to near Colt. Movement was
northeast at 30 mph.

Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.

People in southeastern Poinsett...northwestern St. Francis...Cross
and northwestern Crittenden Counties should monitor this storm
closely.

LAT...LON 3543 9104 3564 9049 3513 9018 3493 9098
      3538 9104
TIME...MOT...LOC 0825Z 242DEG 27KT 3532 9095 3511 9075

Special weather statement, Jun 24, 4:00 AM CDT, 37 minutes before

Special Weather Statement
National Weather Service Memphis TN
400 AM CDT SUN JUN 24 2018

ARZ027-028-240945-
Poinsett AR-Mississippi AR-
400 AM CDT SUN JUN 24 2018

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 445 AM CDT
FOR...

Southeastern Poinsett County in eastern Arkansas...
Southwestern Mississippi County in eastern Arkansas...

At 400 AM CDT...a strong thunderstorm producing pea size hail or
larger and winds at least 40 mph was located near Tyronza, moving
northeast at 10 mph.

Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.

People in southeastern Poinsett and southwestern Mississippi Counties
should monitor this storm closely.

LAT...LON 3558 9047 3570 9030 3570 9029 3571 9029
      3578 9019 3556 9002 3554 9004 3544 9031
      3544 9037
TIME...MOT...LOC 0900Z 237DEG 11KT 3554 9034

Special weather statement, Jun 24, 4:21 AM CDT, 16 minutes before

Special Weather Statement
National Weather Service Memphis TN
421 AM CDT SUN JUN 24 2018

TNZ049-088-089-241000-
Tipton TN-Fayette TN-Shelby TN-
421 AM CDT SUN JUN 24 2018

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 500 AM CDT
FOR...

Southeastern Tipton County in southwestern Tennessee...
Northwestern Fayette County in southwestern Tennessee...
Northeastern Shelby County in southwestern Tennessee...

At 421 AM CDT...a strong thunderstorm producing pea size hail or
larger and winds at least 40 mph was located over Frayser, or 7 miles
southeast of Meeman Shelby Forest State Park, moving northeast at 20
mph.

Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.

People in southeastern Tipton...northwestern Fayette and northeastern
Shelby Counties should monitor this storm closely.

LAT...LON 3512 9000 3529 9011 3554 8966 3531 8950
TIME...MOT...LOC 0921Z 243DEG 18KT 3524 9000

Special weather statement, Jun 24, 4:22 AM CDT, 15 minutes before

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The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 23, 8:30 PM CDT	Special Weather Statement	MEG	Hardin	30 min
Jun 24, 4:18 AM CDT	Severe Thunderstorm Warning	MEG	Lauderdale, Tipton	42 min
Jun 24, 4:21 AM CDT	Special Weather Statement	MEG	Shelby	39 min
Jun 24, 5:47 AM CDT	Areal Flood Advisory	MEG	Shelby	118 min
Jun 24, 6:24 AM CDT	Special Weather Statement	MEG	Shelby	51 min
Jun 24, 6:30 AM CDT	Special Weather Statement	MEG	Henderson	30 min
Jun 24, 6:57 AM CDT	Severe Thunderstorm Warning	MEG	Fayette, Shelby	48 min
Jun 24, 7:14 AM CDT	Special Weather Statement	MEG	Fayette	46 min
Jun 24, 7:18 AM CDT	Flash Flood Warning	MEG	Fayette, Shelby	72 min
Jun 24, 1:31 AM CDT	Special Weather Statement	MEG	Tunica	44 min
Jun 24, 1:46 AM CDT	Severe Thunderstorm Warning	MEG	DeSoto, Tate, Tunica	44 min
Jun 24, 2:27 AM CDT	Severe Thunderstorm Warning	MEG	DeSoto, Tate, Tunica	48 min
Jun 24, 3:14 AM CDT	Special Weather Statement	MEG	DeSoto	46 min
Jun 24, 1:59 PM CDT	River Flood Warning	MEG	Lowndes, Monroe	71 hr
Jun 24, 2:01 AM CDT	Severe Thunderstorm Warning	MEG	Cross, St. Francis	44 min
Jun 24, 2:42 AM CDT	Severe Thunderstorm Warning	MEG	Cross, St. Francis	48 min
Jun 24, 3:25 AM CDT	Special Weather Statement	MEG	Crittenden, Cross, St. Francis	50 min
Jun 24, 4:00 AM CDT	Special Weather Statement	MEG	Mississippi	45 min
Jun 24, 4:22 AM CDT	Special Weather Statement	MEG	Poinsett	38 min
Jun 24, 4:39 AM CDT	Special Weather Statement	MEG	Crittenden, Cross	51 min
Jun 24, 4:42 AM CDT	Severe Thunderstorm Warning	MEG	Crittenden, Cross, St. Francis	48 min
Jun 24, 5:25 AM CDT	Special Weather Statement	MEG	Craighead	50 min
Jun 24, 5:33 AM CDT	Special Weather Statement	MEG	Crittenden	27 min
Jun 24, 5:40 AM CDT	Severe Thunderstorm Warning	MEG	Craighead, Lawrence, Poinsett	50 min
Jun 24, 5:44 AM CDT	Areal Flood Advisory	MEG	Crittenden, Cross, St. Francis	2 hr
Jun 24, 6:32 AM CDT	Special Weather Statement	MEG	Lawrence	43 min
Jun 24, 6:42 AM CDT	Severe Thunderstorm Warning	MEG	Lawrence, Randolph	48 min
Jun 24, 7:23 AM CDT	Special Weather Statement	MEG	Lawrence	37 min
Jun 24, 7:30 AM CDT	Areal Flood Advisory	MEG	Lawrence, Randolph	2 hr
Jun 24, 8:24 AM CDT	Special Weather Statement	MEG	Randolph	51 min
Jun 24, 10:20 AM CDT	Special Weather Statement	MEG	Clay	40 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2018 Every severe thunderstorm warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.