Alert archive / Tennessee / Flash Flood Warnings in 2012

Flash Flood Warning 47, NWS Memphis, TN

September 2, 2012Lauderdale County, Tipton County, Tennessee; Mississippi County, Poinsett County, Arkansas

NWS Memphis, TN issued this flash flood warning at Sep 2, 2012, 1:20 AM CDT for Lauderdale County, Tipton County, Tennessee; Mississippi County, Poinsett County, Arkansas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Sep 2, 2012, 1:20 AM CDT (06:20 UTC)
Expired: Sep 2, 2012, 4:15 AM CDT
In force: 3 hr
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Flood severity: None

Counties Mississippi County, AR, Poinsett County, AR, Lauderdale County, TN, Tipton County, TN

The radar

The Memphis radar (KNQA), 47 km from the middle of the area, began a volume at 06:19 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 (KLZK), launched 00:00Z, 6.3 hours before the alert went out and 96 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: 2103 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 1167 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 121 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 7.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

370 
WGUS54 KMEG 020620
FFWMEG
ARC093-111-TNC097-167-020915-
/O.NEW.KMEG.FF.W.0047.120902T0620Z-120902T0915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
120 AM CDT SUN SEP 2 2012

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN MISSISSIPPI COUNTY IN EASTERN ARKANSAS...
  EASTERN POINSETT COUNTY IN EASTERN ARKANSAS...
  SOUTHERN LAUDERDALE COUNTY IN SOUTHWEST TENNESSEE...
  WESTERN TIPTON COUNTY IN SOUTHWEST TENNESSEE...

* UNTIL 415 AM CDT

* AT 120 AM CDT...DOPPLER RADAR ESTIMATES THREE TO FOUR INCHES OF    
  RAINFALL HAS OCCURRED OVER THE PAST 3 HOURS. SHOWERS AND           
  THUNDERSTORMS WILL PRODUCE AN ADDITIONAL 2 TO 3 INCHES OF RAIN     
  OVER THE NEXT 3 HOURS.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO KEISER...
  LEPANTO...LUXORA...MARKED TREE...OSCEOLA...TRUMANN...TYRONZA...
  WILSON AND FORT PILLOW STATE PARK.

 THIS WARNING ALSO INCLUDES AREAS NEAR CHISHOLM LAKE...OPEN LAKE...
  SUNK LAKE AND THE CHUTE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT FLASH FLOODING ONLY...CALL 1 800 4 3 2 0 8 7 5.

&&

LAT...LON 3570 9060 3570 9029 3582 9003 3583 8948
      3544 8985 3545 9069

$$

1 follow-up statement

527 
WGUS74 KMEG 020905
FFSMEG

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
405 AM CDT SUN SEP 2 2012

ARC093-111-TNC097-167-020915-
/O.EXP.KMEG.FF.W.0047.000000T0000Z-120902T0915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MISSISSIPPI AR-POINSETT AR-LAUDERDALE TN-TIPTON TN-
405 AM CDT SUN SEP 2 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 415 AM CDT FOR WESTERN
TIPTON...SOUTHERN LAUDERDALE...EASTERN POINSETT AND SOUTHERN
MISSISSIPPI COUNTIES...

THE HEAVY RAINFALL WHICH PROMPTED THE WARNING HAS DIMINISHED ACROSS
THE WARNED AREA. THUS THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO
EXPIRE.

.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5.

LAT...LON 3570 9060 3570 9029 3582 9003 3583 8948
      3544 8985 3545 9069

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 1, 7:01 PM CDT	Severe Thunderstorm Warning	MEG	Shelby, Tipton	44 min
Sep 1, 7:10 PM CDT	Severe Thunderstorm Warning	MEG	Haywood, Lauderdale, Tipton	20 min
Sep 1, 7:29 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Haywood, Shelby, Tipton	31 min
Sep 1, 7:33 PM CDT	Severe Thunderstorm Warning	MEG	Crockett, Haywood, Lauderdale	27 min
Sep 1, 7:52 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Hardeman, Haywood, Tipton	23 min
Sep 1, 7:56 PM CDT	Severe Thunderstorm Warning	MEG	Crockett, Dyer, Gibson, Haywood, Madison	34 min
Sep 1, 8:07 PM CDT	Severe Thunderstorm Warning	MEG	Chester, Crockett, Fayette, Hardeman, Haywood, Madison	23 min
Sep 1, 8:15 PM CDT	Special Weather Statement	MEG	Weakley	30 min
Sep 1, 8:22 PM CDT	Severe Thunderstorm Warning	MEG	Carroll, Gibson, Henry, Weakley	53 min
Sep 1, 8:31 PM CDT	Severe Thunderstorm Warning	MEG	Carroll, Chester, Crockett, Gibson, Hardeman, Haywood and 2 more	44 min
Sep 1, 8:34 PM CDT	Areal Flood Advisory	MEG	Shelby	86 min
Sep 1, 8:45 PM CDT	Special Weather Statement	MEG	Fayette	30 min
Sep 1, 8:52 PM CDT	Severe Thunderstorm Warning	MEG	Fayette, Hardeman, Shelby	38 min
Sep 1, 9:04 PM CDT	Severe Thunderstorm Warning	MEG	Carroll, Chester, Decatur, Henderson, Henry, Madison and 1 more	41 min
Sep 1, 9:23 PM CDT	Severe Thunderstorm Warning	MEG	Chester, Fayette, Hardeman, McNairy, Madison	52 min
Sep 1, 9:45 PM CDT	Special Weather Statement	MEG	Fayette, Shelby	30 min
Sep 1, 9:48 PM CDT	Special Weather Statement	MEG	Decatur, Henderson	27 min
Sep 1, 10:01 PM CDT	Tornado Warning	MEG	Fayette, Hardeman	22 min
Sep 1, 10:13 PM CDT	Special Weather Statement	MEG	Hardin, McNairy	32 min
Sep 1, 10:15 PM CDT	Special Weather Statement	MEG	Fayette, Hardeman	45 min
Sep 1, 10:41 PM CDT	Special Weather Statement	MEG	Hardin	49 min
Sep 1, 11:25 PM CDT	Severe Thunderstorm Warning	MEG	Lauderdale, Tipton	23 min
Sep 1, 11:45 PM CDT	Special Weather Statement	MEG	Lauderdale, Tipton	30 min
Sep 2, 12:13 AM CDT	Special Weather Statement	MEG	Crockett, Haywood	32 min
Sep 2, 12:21 AM CDT	Special Weather Statement	MEG	Lauderdale, Tipton	39 min
Sep 2, 12:30 AM CDT	Special Weather Statement	MEG	Crockett, Madison	30 min
Sep 2, 12:45 AM CDT	Special Weather Statement	MEG	Crockett, Haywood, Lauderdale, Tipton	30 min
Sep 2, 2:07 AM CDT	Flash Flood Warning	MEG	Crockett, Haywood, Lauderdale, Tipton	3 hr
Sep 2, 2:15 AM CDT	Special Weather Statement	MEG	Crockett, Haywood, Madison	45 min
Sep 2, 3:29 AM CDT	Flash Flood Warning	MEG	Carroll, Crockett, Gibson, Madison	2 hr
Sep 1, 7:52 PM CDT	Special Weather Statement	MEG	St. Francis	53 min
Sep 1, 8:04 PM CDT	Special Weather Statement	MEG	Lee, Phillips	56 min
Sep 1, 8:21 PM CDT	Severe Thunderstorm Warning	MEG	Lee, Phillips	54 min
Sep 1, 10:39 PM CDT	Special Weather Statement	MEG	Poinsett	51 min
Sep 1, 10:55 PM CDT	Severe Thunderstorm Warning	MEG	Craighead, Mississippi, Poinsett	35 min
Sep 1, 11:58 PM CDT	Special Weather Statement	MEG	Mississippi	32 min

Nearby

Flash Flood Warnings in Tennessee, 2012 Flash Flood Warnings in Arkansas, 2012 Every flash flood warning in 2012

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.