Alert archive / Tennessee / Flash Flood Warnings in 2018

Flash Flood Warning 39, NWS Memphis, TN

June 1, 20185 counties in Tennessee

NWS Memphis, TN issued this flash flood warning at Jun 1, 2018, 1:33 AM CDT for 5 counties in Tennessee. It was in force for 117 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 1, 2018, 1:33 AM CDT (06:33 UTC)
Expired: Jun 1, 2018, 3:30 AM CDT
In force: 117 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Flood severity: None

Counties Carroll County, TN, Dyer County, TN, Gibson County, TN, Henry County, TN, Weakley County, TN

The radar

The Memphis radar (KNQA), 95 km from the middle of the area, began a volume at 06:34 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, 6.6 hours before the alert went out and 148 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: 1087 J/kg
Mixed-layer CIN: -84 J/kg
Mixed-layer LCL: 1560 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 150 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

As transmitted.

721 
WGUS54 KMEG 010633
FFWMEG
TNC017-045-053-079-183-010830-
/O.NEW.KMEG.FF.W.0039.180601T0633Z-180601T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
133 AM CDT FRI JUN 1 2018

The National Weather Service in Memphis has issued a

* Flash Flood Warning for...
  Southern Weakley County in northwestern Tennessee...
  Dyer County in northwestern Tennessee...
  Gibson County in northwestern Tennessee...
  Northwestern Carroll County in northwestern Tennessee...
  Southwestern Henry County in northwestern Tennessee...

* Until 330 AM CDT.

* At 133 AM CDT...Doppler Radar estimates ***EDIT REQUIRED*** X to X
  ***EDIT REQUIRED*** inches of rain has occurred over the past 2
  hours. Showers and thunderstorms will produce an additional 1 to 3
  inches of rain over the next 2 hours.

* Some locations that will experience flooding include...
  Dyersburg, McKenzie, Trenton, Huntingdon, Newbern, Dresden, Dyer,
  Greenfield, Gleason, Kenton, Rutherford, Bradford, Sharon, Atwood,
  Bradleytown, Heloise, Unionville, Miston, Trezevant and Trimble.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3597 8842 3595 8913 3597 8914 3600 8919
      3594 8923 3593 8939 3595 8941 3595 8949
      3593 8949 3594 8956 3592 8961 3592 8965
      3597 8972 3609 8968 3613 8959 3617 8960
      3621 8922 3620 8896 3623 8896 3628 8842

$$

1 follow-up statement

220 
WGUS74 KMEG 010634
FFSMEG

Flash Flood Statement
National Weather Service Memphis TN
134 AM CDT FRI JUN 1 2018

TNC017-045-053-079-183-010830-
/O.CON.KMEG.FF.W.0039.000000T0000Z-180601T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Weakley TN-Dyer TN-Gibson TN-Carroll TN-Henry TN-
134 AM CDT FRI JUN 1 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 AM CDT FOR
SOUTHERN WEAKLEY...DYER...GIBSON...NORTHWESTERN CARROLL AND
SOUTHWESTERN HENRY COUNTIES...

At 133 AM CDT,Doppler Radar estimates 2 to 3 inches over the past 2 
hours. Showers and thunderstorms will produce an additional 1 to 3 
inches of rain over the next 2 hours.

Some locations that will experience flooding include...
Dyersburg, McKenzie, Trenton, Huntingdon, Newbern, Dresden, Dyer,
Greenfield, Gleason, Kenton, Rutherford, Bradford, Sharon, Atwood,
Bradleytown, Heloise, Unionville, Miston, Trezevant and Trimble.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3597 8842 3595 8913 3597 8914 3600 8919
      3594 8923 3593 8939 3595 8941 3595 8949
      3593 8949 3594 8956 3592 8961 3592 8965
      3597 8972 3609 8968 3613 8959 3617 8960
      3621 8922 3620 8896 3623 8896 3628 8842

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 11:40 PM CDT	Severe Thunderstorm Warning	MEG	Henry, Obion, Weakley	50 min
Jun 1, 12:01 AM CDT	Severe Thunderstorm Warning	MEG	Carroll, Crockett, Dyer, Gibson, Obion, Weakley	44 min
Jun 1, 12:16 AM CDT	Severe Thunderstorm Warning	MEG	Benton, Carroll, Henry, Weakley	44 min
Jun 1, 12:17 AM CDT	Severe Thunderstorm Warning	MEG	Benton, Carroll, Henry, Weakley	43 min
Jun 1, 12:18 AM CDT	Severe Thunderstorm Warning	MEG	Dyer, Lauderdale	42 min
Jun 1, 12:33 AM CDT	Severe Thunderstorm Warning	MEG	Dyer, Lauderdale, Tipton	42 min
Jun 1, 12:40 AM CDT	Severe Thunderstorm Warning	MEG	Crockett, Dyer, Gibson, Haywood, Lauderdale, Weakley	50 min
Jun 1, 12:58 AM CDT	Severe Thunderstorm Warning	MEG	Dyer, Lauderdale, Tipton	47 min
Jun 1, 1:00 AM CDT	Severe Thunderstorm Warning	MEG	Benton, Carroll, Gibson, Henry, Weakley	45 min
Jun 1, 1:23 AM CDT	Severe Thunderstorm Warning	MEG	Crockett, Dyer, Gibson, Haywood, Lauderdale, Madison and 2 more	52 min
Jun 1, 1:38 AM CDT	Severe Thunderstorm Warning	MEG	Benton, Carroll, Chester, Decatur, Henderson, Henry	52 min
Jun 1, 1:53 AM CDT	Special Weather Statement	MEG	Shelby	52 min
Jun 1, 2:08 AM CDT	Severe Thunderstorm Warning	MEG	Chester, Crockett, Fayette, Hardeman, Haywood, Madison and 1 more	31 min
Jun 1, 2:54 AM CDT	Special Weather Statement	MEG	Chester, Decatur, Hardin, Henderson, McNairy	66 min
Jun 1, 5:01 AM CDT	Special Weather Statement	MEG	Dyer	44 min
Jun 1, 5:24 AM CDT	Severe Thunderstorm Warning	MEG	Dyer, Lauderdale	51 min
Jun 1, 5:47 AM CDT	Severe Thunderstorm Warning	MEG	Crockett, Haywood, Lauderdale, Tipton	18 min
Jun 1, 6:15 AM CDT	Special Weather Statement	MEG	Madison	45 min
Jun 1, 6:26 AM CDT	Flash Flood Warning	MEG	Dyer	3 hr
Jun 1, 6:50 AM CDT	Flash Flood Warning	MEG	Chester, Haywood, Madison	3 hr
Jun 1, 8:42 AM CDT	River Flood Warning	MEG	Crockett, Dyer, Lauderdale	13 hr
Jun 1, 10:32 AM CDT	Flash Flood Warning	MEG	Chester, Hardeman	3 hr
Jun 1, 2:18 PM CDT	Areal Flood Advisory	MEG	Shelby	117 min

Nearby

Flash Flood Warnings in Tennessee, 2018 Every flash flood 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.