Alert archive / Tennessee / Flash Flood Warnings in 2011

Flash Flood Warning 13, NWS Nashville, TN

February 28, 20118 counties in Tennessee

NWS Nashville, TN issued this flash flood warning at Feb 28, 2011, 8:36 AM CST for 8 counties in Tennessee. It was in force for 6 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 28, 2011, 8:36 AM CST (14:36 UTC)
Expired: Feb 28, 2011, 2:30 PM CST
In force: 6 hr
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Flood severity: None

Counties Clay County, TN, Fentress County, TN, Jackson County, TN, Macon County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN, Smith County, TN

The radar

The Nashville radar (KOHX), 121 km from the middle of the area, began a volume at 14:39 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 12:00Z, 2.6 hours before the alert went out and 125 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: 948 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 795 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 369 m²/s²
0-3 km storm-relative helicity: 404 m²/s²
Significant tornado parameter: 2.6
Supercell composite: 9.4

Open this sounding in Storm Lab

The text

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

597 
WGUS54 KOHX 281436
FFWOHX
TNC027-049-087-111-133-137-141-159-282030-
/O.NEW.KOHX.FF.W.0013.110228T1436Z-110228T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
836 AM CST MON FEB 28 2011

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CLAY COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF CELINA...
  FENTRESS COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF JAMESTOWN...
  JACKSON COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF GAINESBORO...
  EASTERN MACON COUNTY IN MIDDLE TENNESSEE...
  OVERTON COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF LIVINGSTON...
  PICKETT COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF BYRDSTOWN...
  PUTNAM COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF COOKEVILLE...
  EASTERN SMITH COUNTY IN MIDDLE TENNESSEE...

* UNTIL 230 PM CST

* AT 830 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING FROM HEAVY RAIN OVER THE WARNED AREA.

* THE STORMS ARE PRODUCING RAINFALL RATES IN EXCESS OF 3 INCHES PER  
  HOUR...WITH AMOUNTS OF 1 TO 2 INCHES IN A SHORT PERIOD OF TIME.    
  THE HEAVY RAIN WILL CONTINUE THROUGH THE MORNING...AND TOTAL       
  RAINFALL AMOUNTS OF 3 INCHES MAY BE POSSIBLE IN SOME AREAS.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CELINA...    
GAINESBORO...LIVINGSTON...MONTEREY...COOKEVILLE...JAMESTOWN...AND 
BYRDSTOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN 
AROUND...DONT DROWN.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY 
AUTOMOBILE.

&&

LAT...LON 3633 8477 3629 8479 3627 8487 3616 8490
      3617 8503 3614 8507 3612 8522 3600 8527
      3606 8537 3609 8550 3608 8555 3602 8563
      3608 8569 3608 8574 3615 8586 3663 8582
      3663 8497 3661 8478 3640 8465

$$

LAROSA

2 follow-up statements

442 
WGUS74 KOHX 281646
FFSOHX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
1046 AM CST MON FEB 28 2011

TNC027-049-087-111-133-137-141-159-282030-
/O.CON.KOHX.FF.W.0013.000000T0000Z-110228T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PUTNAM TN-SMITH TN-JACKSON TN-OVERTON TN-FENTRESS TN-PICKETT TN-
CLAY TN-MACON TN-
1046 AM CST MON FEB 28 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN MACON...CLAY...
PICKETT...FENTRESS...OVERTON...JACKSON...SOUTHEASTERN SMITH AND
PUTNAM COUNTIES UNTIL 230 PM CST...

AT 1044 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL MOVING ACROSS THE WARNED 
AREA. RAINFALL AMOUNTS OF 1 TO 2 INCHES HAVE FALLEN...AND AN 
ADDITIONAL 1 TO 2 INCHES OF RAIN IS POSSIBLE BEFORE STORMS DIMINISH 
THIS AFTERNOON.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
BYRDSTOWN...CELINA...COOKEVILLE...GAINESBORO...JAMESTOWN...
LIVINGSTON...ALGOOD...BAXTER AND MONTEREY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN 
AROUND...DONT DROWN.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 3633 8477 3629 8479 3627 8487 3616 8490
      3617 8503 3614 8507 3612 8522 3600 8527
      3606 8537 3609 8550 3608 8555 3602 8563
      3608 8569 3608 8574 3615 8586 3663 8582
      3663 8497 3661 8478 3640 8465

$$

LAROSA

981 
WGUS74 KOHX 281858
FFSOHX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
1258 PM CST MON FEB 28 2011

TNC027-049-087-111-133-137-141-159-282030-
/O.CON.KOHX.FF.W.0013.000000T0000Z-110228T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PUTNAM TN-SMITH TN-JACKSON TN-OVERTON TN-FENTRESS TN-PICKETT TN-
CLAY TN-MACON TN-
1258 PM CST MON FEB 28 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN MACON...CLAY...
PICKETT...FENTRESS...OVERTON...JACKSON...SOUTHEASTERN SMITH AND
PUTNAM COUNTIES UNTIL 230 PM CST...

AT 1257 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS THAT PRODUCED HEAVY RAINFALL ACROSS THE WARNED AREA 
HAVE MOVED OUT...HOWEVER RUNOFF WILL CONTINUE TO FILTER THROUGH AREA 
CREEKS AND STREAMS. 

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CONTINUE TO CAUSE FLASH 
FLOODING...ESPECIALLY NEAR BYRDSTOWN...CELINA...COOKEVILLE... 
GAINESBORO...JAMESTOWN...LIVINGSTON...ALGOOD...BAXTER AND MONTEREY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN 
AROUND...DONT DROWN.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 3633 8477 3629 8479 3627 8487 3616 8490
      3617 8503 3614 8507 3612 8522 3600 8527
      3606 8537 3609 8550 3608 8555 3602 8563
      3608 8569 3608 8574 3615 8586 3663 8582
      3663 8497 3661 8478 3640 8465

$$

LAROSA

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 28, 5:16 AM CST	Wind Advisory	OHX	Bedford, Cannon, Clay, Coffee, Cumberland, Davidson and 21 more	13 hr
Feb 28, 5:55 AM CST	Flash Flood Warning	OHX	Benton, Houston, Humphreys, Montgomery, Robertson, Stewart	3 hr
Feb 28, 6:10 AM CST	Severe Thunderstorm Warning	OHX	Benton, Dickson, Houston, Humphreys	35 min
Feb 28, 6:35 AM CST	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Houston, Montgomery	25 min
Feb 28, 6:52 AM CST	Flash Flood Warning	OHX	Benton, Cheatham, Davidson, Dickson, Houston, Humphreys and 4 more	5 hr
Feb 28, 6:58 AM CST	Tornado Warning	OHX	Hickman, Lewis, Perry	32 min
Feb 28, 7:00 AM CST	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Montgomery, Robertson	30 min
Feb 28, 7:33 AM CST	Flash Flood Warning	OHX	Benton, Cheatham, Dickson, Hickman, Humphreys, Lewis and 3 more	6 hr
Feb 28, 7:57 AM CST	Flash Flood Warning	OHX	Cheatham, Davidson, Sumner, Williamson	6 hr
Feb 28, 8:12 AM CST	Flash Flood Watch	OHX	Bedford, Cannon, Clay, Coffee, Cumberland, DeKalb and 20 more	7 hr
Feb 28, 8:12 AM CST	Flash Flood Warning	OHX	Davidson, Macon, Rutherford, Smith, Sumner, Trousdale and 1 more	6 hr
Feb 28, 8:20 AM CST	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Marshall, Maury	55 min
Feb 28, 8:43 AM CST	Flash Flood Warning	OHX	Benton, Houston, Humphreys, Montgomery, Robertson, Stewart	3 hr
Feb 28, 9:01 AM CST	Flash Flood Warning	OHX	Giles, Hickman, Lawrence, Lewis, Marshall, Maury and 3 more	6 hr
Feb 28, 9:23 AM CST	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, Rutherford, Warren	25 min
Feb 28, 9:30 AM CST	Tornado Warning	OHX	Bedford, Coffee	15 min
Feb 28, 10:19 AM CST	Severe Thunderstorm Warning	OHX	Cumberland, Van Buren, White	26 min
Feb 28, 11:12 AM CST	Areal Flood Advisory	OHX	Bedford, Cannon, Coffee, Cumberland, DeKalb, Grundy and 5 more	6 hr
Feb 28, 11:31 AM CST	Severe Thunderstorm Warning	OHX	Cannon, Rutherford, Williamson, Wilson	44 min
Feb 28, 11:47 AM CST	Tornado Warning	OHX	Cannon, DeKalb, Rutherford	28 min
Feb 28, 11:50 AM CST	Areal Flood Advisory	OHX	Benton, Cheatham, Davidson, Dickson, Houston, Humphreys and 5 more	3 hr
Feb 28, 11:56 AM CST	Severe Thunderstorm Warning	OHX	Bedford, Marshall	34 min
Feb 28, 12:18 PM CST	Tornado Warning	OHX	Coffee, Grundy, Van Buren, Warren	27 min
Feb 28, 12:49 PM CST	Severe Thunderstorm Warning	OHX	Grundy	14 min
Feb 28, 1:58 PM CST	River Flood Warning	OHX	Davidson	59 min
Feb 28, 2:08 PM CST	River Flood Advisory	OHX	Davidson	10 hr
Feb 28, 2:08 PM CST	River Flood Advisory	OHX	Davidson	10 hr
Feb 28, 2:08 PM CST	River Flood Advisory	OHX	Davidson	117 min

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.