Alert archive / Tennessee / Flash Flood Warnings in 2018
Flash Flood Warning 9, NWS Nashville, TN
NWS Nashville, TN issued this flash flood warning at Mar 29, 2018, 2:42 AM CDT for 6 counties in Tennessee. It was in force for 6 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 29, 2018, 2:42 AM CDT (07:42 UTC)
- Expired
- Mar 29, 2018, 8:45 AM CDT
- In force
- 6 hr
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Clay County, TN, Jackson County, TN, Macon County, TN, Smith County, TN, Trousdale County, TN, Wilson County, TN
The radar
The Nashville radar (KOHX), 60 km from the middle of the area, began a volume at 07:45 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 |
|---|---|---|---|
| Mar 29, 8:11 AM CDT | HEAVY RAIN 2.2 | Nne Lafayette, TN | COOP REPORT FROM LAFAYETTE RAWS. |
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, 7.7 hours before the alert went out and 70 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
- 97 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 787 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 125 m²/s²
- 0-3 km storm-relative helicity
- 169 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
671
WGUS54 KOHX 290742
FFWOHX
TNC027-087-111-159-169-189-291345-
/O.NEW.KOHX.FF.W.0009.180329T0742Z-180329T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Nashville TN
242 AM CDT THU MAR 29 2018
The National Weather Service in Nashville has issued a
* Flash Flood Warning for...
Northwestern Smith County in Middle Tennessee...
Northwestern Jackson County in Middle Tennessee...
Northeastern Wilson County in Middle Tennessee...
Northwestern Clay County in Middle Tennessee...
Macon County in Middle Tennessee...
Trousdale County in Middle Tennessee...
* Until 845 AM CDT Thursday
* At 240 AM CDT, emergency management reported flash flooding
resulting from heavy rainfall. Another 1 to 2 inches of rain is
expected through Thursday.
* Some locations that will experience flooding include...
Lafayette, Hartsville, Red Boiling Springs, Bugtussle, Dixon
Springs, Pleasant Shade, Boles, Dickerson Chapel Recreation Area
and Moss.
LAT...LON 3662 8558 3627 8601 3626 8631 3647 8623
3663 8601
$$
Rose1 follow-up statement
246
WGUS74 KOHX 291340
FFSOHX
Flash Flood Statement
National Weather Service Nashville TN
840 AM CDT THU MAR 29 2018
TNC027-087-111-159-169-189-291346-
/O.EXP.KOHX.FF.W.0009.000000T0000Z-180329T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Smith TN-Jackson TN-Wilson TN-Clay TN-Macon TN-Trousdale TN-
840 AM CDT THU MAR 29 2018
...THE FLASH FLOOD WARNING FOR NORTHWESTERN SMITH...NORTHWESTERN
JACKSON...NORTHEASTERN WILSON...NORTHWESTERN CLAY...MACON AND
TROUSDALE COUNTIES WILL EXPIRE AT 845 AM CDT...
The heavy rain has ended, at least for a while. Although the flood
threat has diminished, addition rainfall will occur today, and the
rainfall could be heavy at times. So, additional flood warnings are
possible. A Flood Watch remains in effect today through this
evening. Please continue to heed any road closures.
LAT...LON 3662 8558 3627 8601 3626 8631 3647 8623
3663 8601
$$
13The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 10:08 PM CDT | Special Weather Statement | OHX | Maury | 52 min |
| Mar 28, 10:44 PM CDT | Special Weather Statement | OHX | Rutherford, Williamson | 46 min |
| Mar 28, 11:07 PM CDT | Severe Thunderstorm Warning | OHX | Davidson, Rutherford, Williamson | 23 min |
| Mar 28, 11:28 PM CDT | Special Weather Statement | OHX | Davidson | 32 min |
| Mar 28, 11:34 PM CDT | Special Weather Statement | OHX | Wilson | 41 min |
| Mar 29, 12:20 AM CDT | Flash Flood Warning | OHX | Hickman, Lewis, Perry, Wayne | 6 hr |
| Mar 29, 10:11 AM CDT | River Flood Advisory | OHX | Perry | 47 hr |
Nearby
Flash Flood Warnings in Tennessee, 2018Every flash flood warning in 2018
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.