Alert archive / Tennessee / Flash Flood Warnings in 2017
Flash Flood Warning 10, NWS Nashville, TN
NWS Nashville, TN issued this flash flood warning at May 11, 2017, 9:44 PM CDT for Robertson County, Sumner County, 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
- May 11, 2017, 9:44 PM CDT (02:44 UTC)
- Expired
- May 11, 2017, 11:45 PM CDT
- In force
- 2 hr
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Robertson County, TN, Sumner County, TN
The radar
The Nashville radar (KOHX), 34 km from the middle of the area, began a volume at 02:43 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 |
|---|---|---|---|
| May 11, 10:40 PM CDT | FLASH FLOOD | 7 Ssw Westmoreland, TN | FLOODING REPORTED AROUND BETHPAGE ELEMENTARY SCHOOL |
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, 2.7 hours before the alert went out and 47 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
- 904 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 1372 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 97 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 4.2
The text
As transmitted.
301
WGUS54 KOHX 120244
FFWOHX
TNC147-165-120445-
/O.NEW.KOHX.FF.W.0010.170512T0244Z-170512T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Nashville TN
944 PM CDT THU MAY 11 2017
The National Weather Service in Nashville has issued a
* Flash Flood Warning for...
Central Sumner County in Middle Tennessee...
East central Robertson County in Middle Tennessee...
* Until 1145 PM CDT
* At 943 PM CDT, Doppler radar indicated thunderstorms continuing to
develop and produce heavy rain across the warned area. Radar
estimated one to three inches of rain have already fallen,
especially near Bethpage. Flash flooding is expected to begin
shortly.
* Some locations that will experience flooding include...
White House, Cross Plains and Bethpage.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.
&&
LAT...LON 3653 8622 3652 8621 3650 8622 3648 8624
3648 8623 3645 8624 3645 8627 3643 8627
3649 8679 3658 8677
$$
Shamburger1 follow-up statement
571
WGUS74 KOHX 120323
FFSOHX
Flash Flood Statement
National Weather Service Nashville TN
1023 PM CDT THU MAY 11 2017
TNC147-165-120445-
/O.CON.KOHX.FF.W.0010.000000T0000Z-170512T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sumner TN-Robertson TN-
1023 PM CDT THU MAY 11 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT FOR
CENTRAL SUMNER AND EAST CENTRAL ROBERTSON COUNTIES...
At 1021 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain continue across the warned area. One to four inches of
rain have already fallen this evening, with the heaviest rainfall
occurring near Cross Plains and near Bethpage. Flash flooding is
expected to begin shortly.
Some locations that will experience flooding include...
White House, Cross Plains and Bethpage.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3653 8622 3652 8621 3650 8622 3648 8624
3648 8623 3645 8624 3645 8627 3643 8627
3649 8679 3658 8677
$$
ShamburgerThe office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 7:00 PM CDT | Special Weather Statement | OHX | Fentress, Overton, Pickett | 60 min |
| May 11, 7:38 PM CDT | Special Weather Statement | OHX | Macon, Trousdale | 52 min |
| May 11, 8:25 PM CDT | Special Weather Statement | OHX | Jackson, Sumner, Trousdale | 50 min |
| May 11, 8:48 PM CDT | Areal Flood Advisory | OHX | Jackson, Macon, Smith, Sumner, Trousdale | 117 min |
| May 11, 9:37 PM CDT | Special Weather Statement | OHX | Macon, Robertson, Sumner, Trousdale | 38 min |
| May 11, 9:39 PM CDT | Flash Flood Watch | OHX | Cheatham, Dickson, Houston, Humphreys, Macon, Montgomery and 4 more | 5 hr |
| May 11, 9:46 PM CDT | Special Weather Statement | OHX | Houston | 44 min |
| May 11, 10:15 PM CDT | Special Weather Statement | OHX | Montgomery, Robertson | 45 min |
| May 11, 10:17 PM CDT | Special Weather Statement | OHX | Sumner | 43 min |
| May 11, 10:19 PM CDT | Special Weather Statement | OHX | Putnam | 41 min |
| May 11, 11:03 PM CDT | Special Weather Statement | OHX | Sumner | 42 min |
| May 11, 11:27 PM CDT | Areal Flood Advisory | OHX | Smith, Sumner, Trousdale, Wilson | 2 hr |
| May 11, 11:37 PM CDT | Areal Flood Warning | OHX | Robertson, Sumner | 113 min |
| May 11, 11:48 PM CDT | Areal Flood Advisory | OHX | Davidson, Sumner, Wilson | 117 min |
| May 12, 12:57 AM CDT | Areal Flood Advisory | OHX | Cannon, DeKalb, Rutherford, Smith, Wilson | 2 hr |
| May 12, 1:52 AM CDT | Special Weather Statement | OHX | White | 23 min |
Nearby
Flash Flood Warnings in Tennessee, 2017Every flash flood warning in 2017
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.