Alert archive / Tennessee / Flash Flood Warnings in 2012
Flash Flood Warning 1, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Mar 14, 2012, 3:09 PM CDT for 5 counties in Tennessee. It was in force for 2 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Mar 14, 2012, 3:09 PM CDT (20:09 UTC)
- Expired
- Mar 14, 2012, 5:12 PM CDT
- In force
- 2 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Chester County, TN, Decatur County, TN, Hardin County, TN, Henderson County, TN, McNairy County, TN
The radar
The Memphis radar (KNQA), 132 km from the middle of the area, began a volume at 20:09 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 14, 3:45 PM CDT | FLASH FLOOD | 1 Sw Morris Chapel, TN | 6 TO 8 INCHES OF WATER OVER A BACK ROAD BETWEEN ADAMSVILLE AND MORRIS CHAPEL...CLOSER TO MORRIS CHAPEL. OTHER ROADS HAVE WATER OVER THEM TOO. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 8.2 hours before the alert went out and 153 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.
- Mixed-layer CAPE
- 2183 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 638 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -42 m²/s²
- 0-3 km storm-relative helicity
- -15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
971 WGUS54 KMEG 142009 FFWMEG TNC023-039-071-077-109-142315- /O.NEW.KMEG.FF.W.0001.120314T2009Z-120314T2315Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MEMPHIS TN 309 PM CDT WED MAR 14 2012 THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHWESTERN DECATUR COUNTY IN TENNESSEE... EAST CENTRAL CHESTER COUNTY IN SOUTHWEST TENNESSEE... NORTHWESTERN HARDIN COUNTY IN SOUTHWEST TENNESSEE... SOUTH CENTRAL HENDERSON COUNTY IN SOUTHWEST TENNESSEE... NORTHEASTERN MCNAIRY COUNTY IN SOUTHWEST TENNESSEE... * UNTIL 615 PM CDT * AT 309 PM CDT...DOPPLER RADAR ESTIMATES 2 TO 4 INCHES OF RAINFALL HAS OCCURRED OVER THE PAST HOUR. SHOWERS AND THUNDERSTORMS WILL PRODUCE AN ADDITIONAL 2 TO 4 INCHES OF RAIN OVER THE NEXT 2 HOURS. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RURAL AREAS OF EAST CENTRAL CHESTER...NORTHEASTERN MCNAIRY...NORTHWESTERN HARDIN...SOUTH CENTRAL HENDERSON AND SOUTHWESTERN DECATUR COUNTIES. THIS WARNING ALSO INCLUDES AREAS NEAR PINE LAKE. THIS WARNING INCLUDES THE FOLLOWING LOW WATER CROSSINGS IN DECATUR COUNTY BLUNT ROAD AT RUSHING CREEK...CONCORD ROAD NEAR OLD 69... FAIRGROUND ROAD AND LASTER BRANCH AT CONCORD ROAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... .EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. .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 3545 8862 3551 8812 3529 8814 3526 8860 $$
2 follow-up statements
403
WGUS74 KMEG 142116
FFSMEG
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
416 PM CDT WED MAR 14 2012
TNC077-142125-
/O.CAN.KMEG.FF.W.0001.000000T0000Z-120314T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HENDERSON TN-
416 PM CDT WED MAR 14 2012
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTH CENTRAL
HENDERSON COUNTY...
THE HEAVY RAINFALL WHICH PROMPTED THE WARNING HAS DIMINISHED ACROSS
THE WARNED AREA. THUS THE FLASH FLOOD WARNING HAS BEEN CANCELLED.
.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5.
LAT...LON 3529 8814 3526 8860 3540 8861 3542 8831
3542 8825 3542 8824 3543 8813
$$
TNC023-039-071-109-142315-
/O.CON.KMEG.FF.W.0001.000000T0000Z-120314T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHESTER TN-DECATUR TN-HARDIN TN-MCNAIRY TN-
416 PM CDT WED MAR 14 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
NORTHEASTERN MCNAIRY...NORTHWESTERN HARDIN...SOUTHWESTERN DECATUR AND
EAST CENTRAL CHESTER COUNTIES...
AT 415 PM CDT...DOPPLER RADAR ESTIMATES 2 TO 3 INCHES OF RAINFALL HAS
OCCURRED OVER THE PAST HOUR. SHOWERS AND THUNDERSTORMS WILL PRODUCE
UP TO AN ADDITIONAL INCH OF RAIN OVER THE NEXT HOUR.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RURAL AREAS
OF EAST CENTRAL CHESTER...NORTHEASTERN MCNAIRY...NORTHWESTERN HARDIN
AND SOUTHWESTERN DECATUR COUNTIES. A TRAINED SPOTTER REPORTED 6 TO 8
INCHES OF WATER OVER ROAD NEAR MORRIS CHAPEL AT 345 PM CDT.
THIS WARNING INCLUDES THE FOLLOWING LOW WATER CROSSINGS IN DECATUR
COUNTY BLUNT ROAD AT RUSHING CREEK AND LASTER BRANCH AT CONCORD ROAD.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
.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 3529 8814 3526 8860 3540 8861 3542 8831
3542 8825 3542 8824 3543 8813
$$268
WGUS74 KMEG 142212
FFSMEG
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
512 PM CDT WED MAR 14 2012
TNC023-039-071-109-142223-
/O.CAN.KMEG.FF.W.0001.000000T0000Z-120314T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHESTER TN-DECATUR TN-HARDIN TN-MCNAIRY TN-
512 PM CDT WED MAR 14 2012
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHEASTERN
MCNAIRY...NORTHWESTERN HARDIN...SOUTHWESTERN DECATUR AND EAST CENTRAL
CHESTER COUNTIES...
THE HEAVY RAINFALL WHICH PROMPTED THE WARNING HAS DIMINISHED ACROSS
THE WARNED AREA. THUS THE FLASH FLOOD WARNING HAS BEEN CANCELLED.
.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5.
LAT...LON 3529 8814 3526 8860 3540 8861 3542 8831
3542 8825 3542 8824 3543 8813
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 14, 2:13 PM CDT | Special Weather Statement | MEG | Decatur | 32 min |
| Mar 14, 2:27 PM CDT | Special Weather Statement | MEG | Chester | 33 min |
| Mar 14, 2:33 PM CDT | Severe Thunderstorm Warning | MEG | Chester, Hardin, Henderson, McNairy | 42 min |
| Mar 14, 3:06 PM CDT | Severe Thunderstorm Warning | MEG | Chester, Decatur, Hardin, Henderson, McNairy | 39 min |
| Mar 14, 3:36 PM CDT | Severe Thunderstorm Warning | MEG | Hardin, McNairy | 39 min |
| Mar 14, 3:40 PM CDT | Severe Thunderstorm Warning | MEG | Decatur, Henderson | 29 min |
Nearby
Flash Flood Warnings in Tennessee, 2012Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.