Alert archive / Tennessee / Flash Flood Warnings in 2021
Flash Flood Warning 74, NWS Nashville, TN
NWS Nashville, TN issued this flash flood warning at Oct 6, 2021, 8:59 PM CDT for Perry County, Wayne County, Tennessee. It was in force for 4 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
- Oct 6, 2021, 8:59 PM CDT (01:59 UTC)
- Expired
- Oct 7, 2021, 1:00 AM CDT
- In force
- 4 hr
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Perry County, TN, Wayne County, TN
The radar
The Nashville radar (KOHX), 151 km from the middle of the area, began a volume at 02:02 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 |
|---|---|---|---|
| Oct 6, 11:45 PM CDT | FLASH FLOOD | 9 S Linden, TN | REPORTS OF LOTS OF WATER OVER ROADWAYS IN FLATWOODS AREA. TIME ESTIMATED BY DISPATCH. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 2.0 hours before the alert went out and 140 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
- 595 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 871 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 117 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.7
The text
As transmitted.
500
WGUS54 KOHX 070159
FFWOHX
TNC135-181-070600-
/O.NEW.KOHX.FF.W.0074.211007T0159Z-211007T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Nashville TN
859 PM CDT Wed Oct 6 2021
The National Weather Service in Nashville has issued a
* Flash Flood Warning for...
Southeastern Perry County in middle Tennessee...
Central Wayne County in middle Tennessee...
* Until 100 AM CDT.
* At 859 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain training across the warned area. Between 1 and 3 inches
of rain have fallen. Additional rainfall amounts of 1 to 2.5
inches are possible in the warned area. Flash flooding is ongoing
or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Waynesboro, Linden, Collinwood and Flatwoods.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3547 8792 3564 8782 3562 8774 3530 8773
3502 8774 3501 8792
FLASH FLOOD...RADAR INDICATED
$$
FBThe office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 6, 7:04 PM CDT | Special Weather Statement | OHX | Rutherford | 41 min |
| Oct 6, 7:11 PM CDT | Areal Flood Advisory | OHX | Cumberland, Fentress, Pickett | 3 hr |
| Oct 6, 7:12 PM CDT | Severe Thunderstorm Warning | OHX | Dickson, Hickman | 33 min |
| Oct 6, 7:14 PM CDT | Tornado Warning | OHX | Fentress | 31 min |
| Oct 6, 7:16 PM CDT | Areal Flood Advisory | OHX | Putnam, White | 3 hr |
| Oct 6, 7:22 PM CDT | Areal Flood Advisory | OHX | DeKalb, Warren, White | 3 hr |
| Oct 6, 7:32 PM CDT | Areal Flood Advisory | OHX | Humphreys, Perry | 3 hr |
| Oct 6, 7:44 PM CDT | Areal Flood Advisory | OHX | Bedford, Rutherford | 3 hr |
| Oct 6, 7:44 PM CDT | Severe Thunderstorm Warning | OHX | Fentress, Pickett | 26 min |
| Oct 6, 7:48 PM CDT | Flash Flood Warning | OHX | Giles | 5 hr |
| Oct 6, 7:54 PM CDT | Special Weather Statement | OHX | Coffee | 51 min |
| Oct 6, 8:07 PM CDT | Areal Flood Advisory | OHX | Davidson, Maury, Williamson | 113 min |
| Oct 6, 8:17 PM CDT | Special Weather Statement | OHX | Humphreys | 28 min |
| Oct 6, 8:28 PM CDT | Areal Flood Advisory | OHX | Humphreys | 4 hr |
| Oct 6, 8:52 PM CDT | Flash Flood Warning | OHX | Cumberland, Fentress, Overton, Pickett, Putnam, White | 3 hr |
| Oct 6, 8:56 PM CDT | Flash Flood Warning | OHX | Humphreys, Perry | 4 hr |
| Oct 6, 9:15 PM CDT | Areal Flood Advisory | OHX | Coffee, Grundy, Warren | 3 hr |
| Oct 6, 10:24 PM CDT | Flash Flood Warning | OHX | Bedford | 3 hr |
| Oct 6, 10:40 PM CDT | Areal Flood Advisory | OHX | Houston, Humphreys, Montgomery | 3 hr |
| Oct 6, 10:56 PM CDT | Areal Flood Advisory | OHX | Bedford, Cannon, Coffee, Rutherford | 3 hr |
| Oct 6, 10:57 PM CDT | Special Weather Statement | OHX | Cannon | 33 min |
| Oct 6, 11:35 PM CDT | Areal Flood Advisory | OHX | Cannon, DeKalb, Rutherford, Smith, Wilson | 3 hr |
| Oct 7, 12:24 AM CDT | Areal Flood Advisory | OHX | DeKalb, Jackson, Putnam, Smith, Trousdale, Wilson | 2 hr |
| Oct 7, 1:45 AM CDT | River Flood Advisory | OHX | Bedford | 8 hr |
| Oct 7, 9:29 AM CDT | River Flood Advisory | OHX | Perry | 20 hr |
Nearby
Flash Flood Warnings in Tennessee, 2021Every flash flood warning in 2021
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.