Alert archive / Tennessee / Flash Flood Warnings in 2021
Flash Flood Warning 51, NWS Nashville, TN
NWS Nashville, TN issued this flash flood warning at Aug 21, 2021, 7:47 AM CDT for 4 counties in Tennessee. It was in force for 9 hr. 18 reports 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
- Aug 21, 2021, 7:47 AM CDT (12:47 UTC)
- Expired
- Aug 21, 2021, 5:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
- Emergency
- Flash flood emergency
- Damage threat
- Catastrophic
- Flood severity
- None
Counties Dickson County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN
The radar
The Ft Campbell radar (KHPX), 74 km from the middle of the area, began a volume at 12:45 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 |
|---|---|---|---|
| Aug 21, 7:50 AM CDT | FLASH FLOOD | 3 E Lyles, TN | TATUM ROAD BETWEEN HIGHWAY 100 AND HIGHWAY 7 IMPASSABLE DUE TO FLOODING. |
| Aug 21, 8:00 AM CDT | FLASH FLOOD | Dickson, TN | COUNTY-WIDE, TOO MANY WATER RESCUES TO COUNT. NUMEROUS ROADS DAMAGED OR CLOSED ACROSS DICKSON COUNTY. |
| Aug 21, 8:00 AM CDT | FLASH FLOOD | Nunnelly, TN | CAMPERS AND PEOPLE TRAPPED IN VEHICLES ACROSS NORTHERN HICKMAN COUNTY. |
| Aug 21, 8:00 AM CDT | HEAVY RAIN 11.66 | 10 N Centerville, TN | 11.66 INCHES MEASURED SO FAR. PINEY RIVER RD FLOODED AND BASEMENTS FLOODING AS WELL. |
| Aug 21, 8:03 AM CDT | FLASH FLOOD | 2 Ene Dickson, TN | HOMES FLOODING AROUND GREYSTONE GOLF CLUB IN DICKSON. |
| Aug 21, 8:05 AM CDT | FLASH FLOOD | 1 E Waverly, TN | SEVERAL WATER RESCUES ONGOING JUST EAST OF WAVERLY IN HUMPHREYS COUNTY. |
| Aug 21, 8:09 AM CDT | FLASH FLOOD | 1 Se Dickson, TN | SEVERAL HOMES FLOODED ON ROYAL OAK DRIVE IN DICKSON. |
| Aug 21, 8:11 AM CDT | FLASH FLOOD | 5 Sw Dickson, TN | WATER ACROSS NORTH MOUNT SINAI PAST 825 NORTH MOUNT SINAI ROAD. |
| Aug 21, 8:23 AM CDT | HEAVY RAIN 6.85 | 6 Wnw Bon Aqua, TN | 6.85 OF RAIN MEASURED AT EAST PINEY RD AND LOYD RD |
| Aug 21, 8:34 AM CDT | FLASH FLOOD | 7 Sse Tennessee City, TN | HOME FLOODED AT HIGHWAY 48 S AND I-40. |
| Aug 21, 8:34 AM CDT | HEAVY RAIN 9.05 | Lyles, TN | PERSONAL WEATHER STATION MEASURED 9.05 INCHES OF RAIN SINCE MIDNIGHT |
| Aug 21, 8:50 AM CDT | FLASH FLOOD | Erin, TN | ROADS CLOSED AND WIDESPREAD FLASH FLOODING ISSUES ACROSS HOUSTON COUNTY. |
| Aug 21, 8:55 AM CDT | HEAVY RAIN 9.93 | 6 Wsw Dickson, TN | |
| Aug 21, 9:00 AM CDT | HEAVY RAIN 9.09 | Mcewen, TN | |
| Aug 21, 9:06 AM CDT | FLASH FLOOD | Dickson, TN | HIDDEN VALLEY APARTMENTS, SPRING STREET NEAR HENSLEE DRIVE, FLOODED WITH WATER TO ROOFS OF CARS. SEVERAL APARTMENTS COMPLETELY FLOODED. |
| Aug 21, 9:09 AM CDT | FLASH FLOOD | Dickson, TN | SEVERAL HOMES AND BUSINESSES FLOODED NEAR HIGHWAY 70 SOUTH ACROSS FROM TRISTAR HORIZON HOSPITAL. |
| Aug 21, 10:30 AM CDT | HEAVY RAIN 11.28 | 5 S Dickson, TN | 11.28 OF RAIN MEASURED SINCE MIDNIGHT BY PERSONAL WEATHER STATION NEAR EXIT 172 ON I-40 |
| Aug 21, 10:52 AM CDT | FLASH FLOOD | 1 Ssw Waverly, TN | 911 CALL CENTER IS DOWN IN HUMPHREYS COUNTY DUE TO BEING FLOODED. |
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 12:00Z, 0.8 hours before the alert went out and 89 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
- 1243 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 488 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 41 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.9
The text
As transmitted.
491
WGUS54 KOHX 211247
FFWOHX
TNC043-081-083-085-211545-
/O.NEW.KOHX.FF.W.0051.210821T1247Z-210821T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Nashville TN
747 AM CDT Sat Aug 21 2021
...FLASH FLOOD EMERGENCY FOR HOUSTON, HUMPHREYS, HICKMAN, AND
DICKSON COUNTIES...
The National Weather Service in Nashville has issued a
* Flash Flood Warning for...
Dickson County in middle Tennessee...
Northern Hickman County in middle Tennessee...
Houston County in middle Tennessee...
Northeastern Humphreys County in middle Tennessee...
* Until 1045 AM CDT.
* At 747 AM CDT, emergency management reported thunderstorms
producing heavy rain across the warned area. Between 3 and 9
inches of rain have fallen. Flash flooding is already occurring.
This is a FLASH FLOOD EMERGENCY for Houston, Humphreys, Hickman,
and Dickson Counties. This is a PARTICULARLY DANGEROUS SITUATION.
SEEK HIGHER GROUND NOW!
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Emergency management reported.
IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK
HIGHER GROUND NOW! Life threatening flash flooding of
low water crossings, small creeks and streams, urban
areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
Dickson, Waverly, Centerville, Erin, White Bluff, McEwen, Burns,
Tennessee Ridge, Charlotte, Vanleer, Slayden, Pinewood, Nunnelly,
Bon Aqua, Lyles, Primm Springs and Houston County Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to higher ground now! This is an extremely dangerous and
life-threatening situation. Do not attempt to travel unless you are
fleeing an area subject to flooding or under an evacuation order.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3632 8796 3633 8748 3631 8747 3613 8722
3598 8721 3578 8723 3576 8740 3583 8763
3625 8795 3628 8795
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC
$$
104 follow-up statements
502
WGUS74 KOHX 211346
FFSOHX
Flash Flood Statement
National Weather Service Nashville TN
846 AM CDT Sat Aug 21 2021
TNC043-081-083-085-211545-
/O.CON.KOHX.FF.W.0051.000000T0000Z-210821T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dickson TN-Hickman TN-Houston TN-Humphreys TN-
846 AM CDT Sat Aug 21 2021
...FLASH FLOOD EMERGENCY FOR HOUSTON, HUMPHREYS, HICKMAN, AND
DICKSON COUNTIES...
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT THIS
MORNING FOR DICKSON, NORTHERN HICKMAN, HOUSTON AND NORTHEASTERN
HUMPHREYS COUNTIES...
At 846 AM CDT, emergency management reported thunderstorms producing
heavy rain across the warned area. Between 4 and 11 inches of rain
have fallen. Flash flooding is already occurring.
This is a FLASH FLOOD EMERGENCY for Houston, Humphreys, Hickman, and
Dickson Counties. This is a PARTICULARLY DANGEROUS SITUATION. SEEK
HIGHER GROUND NOW!
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Emergency management reported.
IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER
GROUND NOW! Life threatening flash flooding of low water
crossings, small creeks and streams, urban areas,
highways, streets and underpasses.
Some locations that will experience flash flooding include...
Dickson, Waverly, Centerville, Erin, White Bluff, McEwen, Burns,
Tennessee Ridge, Charlotte, Vanleer, Slayden, Pinewood, Nunnelly,
Bon Aqua, Lyles, Primm Springs and Houston County Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to higher ground now! This is an extremely dangerous and
life-threatening situation. Do not attempt to travel unless you are
fleeing an area subject to flooding or under an evacuation order.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3632 8796 3633 8748 3631 8747 3613 8722
3598 8721 3578 8723 3576 8740 3583 8763
3625 8795
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC
$$
10125
WGUS54 KOHX 211528
FFWOHX
TNC043-081-083-085-211745-
/O.EXT.KOHX.FF.W.0051.000000T0000Z-210821T1745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Nashville TN
1028 AM CDT Sat Aug 21 2021
...FLASH FLOOD EMERGENCY FOR HOUSTON, HUMPHREYS, HICKMAN, AND
DICKSON COUNTIES...
The National Weather Service in Nashville has extended the
* Flash Flood Warning for...
Dickson County in middle Tennessee...
Northern Hickman County in middle Tennessee...
Houston County in middle Tennessee...
Northeastern Humphreys County in middle Tennessee...
* Until 1245 PM CDT.
* At 1028 AM CDT, emergency management reported thunderstorms
producing heavy rain across the warned area. Between 7 and 12
inches of rain have fallen. Flash flooding is already occurring.
This is a FLASH FLOOD EMERGENCY for Houston, Humphreys, Hickman,
and Dickson Counties. This is a PARTICULARLY DANGEROUS SITUATION.
SEEK HIGHER GROUND NOW!
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Emergency management reported.
IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK
HIGHER GROUND NOW! Life threatening flash flooding of
low water crossings, small creeks and streams, urban
areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
Dickson, Waverly, Centerville, Erin, White Bluff, McEwen, Burns,
Tennessee Ridge, Charlotte, Vanleer, Slayden, Pinewood, Nunnelly,
Bon Aqua, Lyles, Primm Springs and Houston County Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to higher ground now! This is an extremely dangerous and
life-threatening situation. Do not attempt to travel unless you are
fleeing an area subject to flooding or under an evacuation order.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Stay away or be swept away. River banks and culverts can become
unstable and unsafe.
&&
LAT...LON 3632 8796 3633 8748 3631 8747 3613 8722
3598 8721 3578 8723 3576 8740 3583 8763
3625 8795
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC
$$
10617
WGUS54 KOHX 211736
FFWOHX
TNC043-081-083-085-212000-
/O.EXT.KOHX.FF.W.0051.000000T0000Z-210821T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Nashville TN
1236 PM CDT Sat Aug 21 2021
...FLASH FLOOD EMERGENCY FOR HOUSTON, HUMPHREYS, HICKMAN, AND
DICKSON COUNTIES...
The National Weather Service in Nashville has extended the
* Flash Flood Warning for...
Southwestern Dickson County in middle Tennessee...
Northern Hickman County in middle Tennessee...
Central Houston County in middle Tennessee...
Northeastern Humphreys County in middle Tennessee...
* Until 300 PM CDT.
* At 1236 PM CDT, emergency management reported thunderstorms
producing heavy rain across the warned area. Between 7 and 12
inches of rain have fallen. Flash flooding is already occurring.
This is a FLASH FLOOD EMERGENCY for Houston, Humphreys, Hickman,
and Dickson Counties. This is a PARTICULARLY DANGEROUS SITUATION.
SEEK HIGHER GROUND NOW!
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Emergency management reported.
IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK
HIGHER GROUND NOW! Life threatening flash flooding of
low water crossings, small creeks and streams, urban
areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
Dickson, Waverly, Centerville, Erin, McEwen, Tennessee Ridge,
Pinewood, Nunnelly, Lyles, Bon Aqua, Primm Springs and Houston
County Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to higher ground now! This is an extremely dangerous and
life-threatening situation. Do not attempt to travel unless you are
fleeing an area subject to flooding or under an evacuation order.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Stay away or be swept away. River banks and culverts can become
unstable and unsafe.
&&
LAT...LON 3632 8796 3633 8769 3592 8725 3578 8723
3576 8740 3583 8763 3625 8795 3628 8795
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC
$$
Schaper899
WGUS54 KOHX 211953
FFWOHX
TNC043-081-083-085-212200-
/O.EXT.KOHX.FF.W.0051.000000T0000Z-210821T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Nashville TN
253 PM CDT Sat Aug 21 2021
...FLASH FLOOD EMERGENCY FOR HOUSTON, HUMPHREYS, HICKMAN, AND
DICKSON COUNTIES...
The National Weather Service in Nashville has extended the
* Flash Flood Warning for...
Southwestern Dickson County in middle Tennessee...
Northern Hickman County in middle Tennessee...
Central Houston County in middle Tennessee...
Northeastern Humphreys County in middle Tennessee...
* Until 500 PM CDT.
* At 253 PM CDT, emergency management reported thunderstorms
producing heavy rain across the warned area. Between 8 and 12
inches of rain have fallen. Flash flooding is already occurring.
This is a FLASH FLOOD EMERGENCY for Houston, Humphreys, Hickman,
and Dickson Counties. This is a PARTICULARLY DANGEROUS SITUATION.
SEEK HIGHER GROUND NOW!
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Emergency management reported.
IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK
HIGHER GROUND NOW! Life threatening flash flooding of
low water crossings, small creeks and streams, urban
areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
Dickson, Waverly, Centerville, Erin, McEwen, Tennessee Ridge,
Pinewood, Nunnelly, Lyles, Bon Aqua, Primm Springs and Houston
County Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to higher ground now! This is an extremely dangerous and
life-threatening situation. Do not attempt to travel unless you are
fleeing an area subject to flooding or under an evacuation order.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Stay away or be swept away. River banks and culverts can become
unstable and unsafe.
&&
LAT...LON 3632 8796 3633 8769 3592 8725 3578 8723
3576 8740 3583 8763 3625 8795 3628 8795
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC
$$
SchaperThe office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 2:48 AM CDT | Areal Flood Advisory | OHX | Dickson, Hickman, Humphreys, Lewis | 2 hr |
| Aug 21, 3:29 AM CDT | Flash Flood Warning | OHX | Dickson, Hickman, Humphreys | 5 hr |
| Aug 21, 4:10 AM CDT | Areal Flood Advisory | OHX | Giles, Lawrence, Lewis, Maury | 3 hr |
| Aug 21, 4:29 AM CDT | Areal Flood Advisory | OHX | Montgomery, Stewart | 3 hr |
| Aug 21, 4:49 AM CDT | Flash Flood Warning | OHX | Dickson, Hickman, Houston, Humphreys | 3 hr |
| Aug 21, 6:24 AM CDT | Flash Flood Warning | OHX | Houston, Humphreys, Stewart | 5 hr |
| Aug 21, 8:39 AM CDT | River Flood Warning | OHX | Hickman | 13 hr |
| Aug 21, 9:41 AM CDT | Areal Flood Advisory | OHX | Hickman, Lewis, Maury | 3 hr |
| Aug 21, 10:12 AM CDT | Flash Flood Warning | OHX | Hickman, Humphreys, Lewis, Maury, Perry | 3 hr |
| Aug 21, 10:17 AM CDT | River Flood Advisory | OHX | Hickman | 52 hr |
| Aug 21, 11:39 AM CDT | Areal Flood Advisory | OHX | Giles, Lawrence, Marshall | 3 hr |
| Aug 21, 12:33 PM CDT | River Flood Warning | OHX | Humphreys | 44 hr |
| Aug 21, 4:40 PM CDT | Areal Flood Advisory | OHX | Houston, Stewart | 3 hr |
| Aug 21, 4:55 PM CDT | Flash Flood Warning | OHX | Dickson, Hickman, Houston, Humphreys | 6 hr |
| Aug 21, 5:07 PM CDT | Flash Flood Warning | OHX | Dickson, Houston, Montgomery, Stewart | 4 hr |
| Aug 21, 5:10 PM CDT | Special Weather Statement | OHX | Houston, Stewart | 50 min |
| Aug 21, 5:30 PM CDT | Special Weather Statement | OHX | Dickson, Houston | 45 min |
| Aug 21, 5:43 PM CDT | Special Weather Statement | OHX | Lawrence | 47 min |
| Aug 21, 5:57 PM CDT | Tornado Warning | OHX | Dickson | 16 min |
| Aug 21, 5:58 PM CDT | Flash Flood Warning | OHX | Cheatham, Dickson, Houston, Montgomery | 3 hr |
| Aug 21, 6:17 PM CDT | Special Weather Statement | OHX | Dickson | 43 min |
| Aug 21, 6:29 PM CDT | Special Weather Statement | OHX | Hickman | 31 min |
| Aug 21, 6:53 PM CDT | Special Weather Statement | OHX | Williamson | 37 min |
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.