Alert archive / Tennessee / Flash Flood Warnings in 2011

Flash Flood Warning 22, NWS Memphis, TN

February 24, 2011Carroll County, Henry County, Tennessee

NWS Memphis, TN issued this flash flood warning at Feb 24, 2011, 7:52 PM CST for Carroll County, Henry County, Tennessee. 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: Feb 24, 2011, 7:52 PM CST (01:52 UTC)
Expired: Feb 24, 2011, 10:45 PM CST
In force: 3 hr
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Flood severity: None

Counties Carroll County, TN, Henry County, TN

The radar

The Paducah radar (KPAH), 106 km from the middle of the area, began a volume at 01:55 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

Nashville Metro, TN (KBNA), launched 00:00Z, 1.9 hours before the alert went out and 151 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: 17 J/kg
Mixed-layer CIN: -79 J/kg
Mixed-layer LCL: 793 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: 538 m²/s²
0-3 km storm-relative helicity: 629 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

181 
WGUS54 KMEG 250152
FFWMEG
TNC017-079-250445-
/O.NEW.KMEG.FF.W.0022.110225T0152Z-110225T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
752 PM CST THU FEB 24 2011

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CARROLL COUNTY IN NORTHWEST TENNESSEE...
  HENRY COUNTY IN NORTHWEST TENNESSEE...

* UNTIL 1045 PM CST

* AT 752 PM CST...DOPPLER RADAR ESTIMATES 1 TO 3 INCHES OF RAINFALL
  HAS OCCURRED OVER THE PAST 6 HOURS. SHOWERS AND THUNDERSTORMS WILL
  PRODUCE AN ADDITIONAL 1 TO 3 INCHES OF RAIN OVER THE NEXT 3 HOURS.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  HUNTINGDON...PARIS AND PARIS LANDING STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE
INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE
USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS
POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING
FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

.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 3636 8808 3626 8808 3621 8813 3616 8815
      3613 8820 3588 8821 3587 8857 3590 8869
      3604 8868 3610 8859 3610 8851 3651 8851
      3650 8804 3643 8804 3636 8799

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 24, 6:11 PM CST	Severe Thunderstorm Warning	MEG	Dyer, Henry, Lake, Lauderdale, Tipton, Weakley	90 days
Feb 24, 6:14 PM CST	Tornado Warning	MEG	Lauderdale	31 min
Feb 24, 6:19 PM CST	Tornado Warning	MEG	Obion, Weakley	28 min
Feb 24, 6:23 PM CST	Severe Thunderstorm Warning	MEG	Lauderdale, Tipton	90 days
Feb 24, 6:28 PM CST	Severe Thunderstorm Warning	MEG	Carroll, Fayette, Gibson, Henry, Shelby, Tipton and 1 more	90 days
Feb 24, 6:34 PM CST	Tornado Warning	MEG	Shelby	26 min
Feb 24, 6:38 PM CST	Tornado Warning	MEG	Crockett, Dyer, Lake, Lauderdale, Obion	52 min
Feb 24, 6:41 PM CST	Flash Flood Warning	MEG	Crockett, Gibson, Haywood, Lauderdale, Tipton	3 hr
Feb 24, 6:56 PM CST	Flash Flood Warning	MEG	Fayette, Shelby	3 hr
Feb 24, 6:57 PM CST	Tornado Warning	MEG	Fayette, Haywood, Shelby, Tipton	48 min
Feb 24, 6:59 PM CST	Severe Thunderstorm Warning	MEG	Chester, Crockett, Decatur, Haywood, Henderson, Lauderdale and 2 more	90 days
Feb 24, 7:15 PM CST	Tornado Warning	MEG	Chester, Fayette, Hardeman, Shelby	45 min
Feb 24, 7:20 PM CST	Severe Thunderstorm Warning	MEG	Fayette, Hardeman, Shelby	90 days
Feb 24, 7:21 PM CST	Tornado Warning	MEG	Carroll, Crockett, Dyer, Gibson, Lauderdale, Obion and 1 more	39 min
Feb 24, 7:26 PM CST	Severe Thunderstorm Warning	MEG	Henry	90 days
Feb 24, 7:31 PM CST	Severe Thunderstorm Warning	MEG	Carroll, Crockett, Gibson, Haywood, Henderson, Madison	44 min
Feb 24, 7:32 PM CST	Tornado Warning	MEG	Chester, Fayette, Hardeman, Haywood, Henderson, Madison	43 min
Feb 24, 7:56 PM CST	Tornado Warning	MEG	Chester, Fayette, Hardeman, McNairy	49 min
Feb 24, 7:58 PM CST	Flash Flood Warning	MEG	Carroll, Chester, Crockett, Gibson, Henderson, Madison	3 hr
Feb 24, 7:58 PM CST	Severe Thunderstorm Warning	MEG	Carroll, Henry, Weakley	47 min
Feb 24, 7:58 PM CST	Severe Thunderstorm Warning	MEG	Fayette, Hardeman, McNairy	47 min
Feb 24, 8:00 PM CST	Tornado Warning	MEG	Carroll, Henry	45 min
Feb 24, 8:04 PM CST	Flash Flood Warning	MEG	Chester, Fayette, Hardeman, McNairy	3 hr
Feb 24, 8:11 PM CST	Severe Thunderstorm Warning	MEG	Carroll, Henderson	19 min
Feb 24, 8:12 PM CST	Tornado Warning	MEG	Carroll, Chester, Decatur, Hardeman, Hardin, Henderson and 1 more	48 min
Feb 24, 8:23 PM CST	Flash Flood Warning	MEG	Decatur	3 hr
Feb 24, 8:34 PM CST	Severe Thunderstorm Warning	MEG	Hardin, McNairy	56 min
Feb 24, 8:47 PM CST	Flash Flood Warning	MEG	Hardin, McNairy	3 hr
Feb 24, 9:30 PM CST	Severe Thunderstorm Warning	MEG	Hardin	36 min
Feb 25, 6:40 AM CST	River Flood Warning	MEG	Crockett, Dyer, Lauderdale	11 hr
Feb 25, 6:40 AM CST	River Flood Warning	MEG	Dyer, Lake	34 days
Feb 25, 6:40 AM CST	River Flood Warning	MEG	Dyer, Lake, Lauderdale	37 days
Feb 25, 1:37 PM CST	River Flood Warning	MEG	Lauderdale, Tipton	38 days

Nearby

Flash Flood Warnings in Tennessee, 2011 Every flash flood warning in 2011

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.