Alert archive / Tennessee / Flash Flood Warnings in 2026
Flash Flood Warning 50, NWS Nashville, TN
NWS Nashville, TN issued this flash flood warning at Aug 1, 2026, 8:43 AM CDT for 4 counties in Tennessee. It was in force for 77 min. 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
- Aug 1, 2026, 8:43 AM CDT (13:43 UTC)
- Expired
- Aug 1, 2026, 10:00 AM CDT
- In force
- 77 min
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Smith County, TN, Sumner County, TN, Trousdale County, TN, Wilson County, TN
The radar
The Nashville radar (KOHX), 38 km from the middle of the area, began a volume at 13:46 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 1, 8:50 AM CDT | FLASH FLOOD | 3 N Lebanon, TN | Water standing on road near the 4000 block of Coles Ferry Pike. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this flash flood warning; the first came 7 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 1.7 hours before the alert went out and 46 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
- 259 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 469 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 219 m²/s²
- 0-3 km storm-relative helicity
- 291 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.6
The text
As transmitted.
541
WGUS54 KOHX 011343
FFWOHX
TNC159-165-169-189-011645-
/O.NEW.KOHX.FF.W.0050.260801T1343Z-260801T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Nashville TN
843 AM CDT Sat Aug 1 2026
The National Weather Service in Nashville has issued a
* Flash Flood Warning for...
Smith County in Middle Tennessee...
Southeastern Sumner County in Middle Tennessee...
Trousdale County in Middle Tennessee...
Central Wilson County in Middle Tennessee...
* Until 1145 AM CDT.
* At 843 AM CDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
2 and 3 inches of rain have fallen. Additional rainfall amounts of
0.5 to 1 inch are possible in the warned area. Flash flooding is
ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar and automated gauges.
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...
Lebanon, Carthage, Hartsville, Watertown, Gordonsville, Hickman,
South Carthage, Tuckers Crossroads, Dickerson Chapel Recreation
Area, Dixon Springs, Pleasant Shade and Bledsoe Creek State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3633 8639 3644 8640 3644 8612 3643 8600
3642 8595 3642 8591 3613 8582 3607 8636
FLASH FLOOD...RADAR AND GAUGE INDICATED
$$
Baggett1 follow-up statement
376
WGUS74 KOHX 011500
FFSOHX
Flash Flood Statement
National Weather Service Nashville TN
1000 AM CDT Sat Aug 1 2026
TNC159-165-169-189-011510-
/O.CAN.KOHX.FF.W.0050.000000T0000Z-260801T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Smith TN-Sumner TN-Trousdale TN-Wilson TN-
1000 AM CDT Sat Aug 1 2026
...FLASH FLOOD WARNING IS CANCELLED FOR SMITH, SOUTHEASTERN SUMNER,
TROUSDALE AND CENTRAL WILSON COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
&&
LAT...LON 3633 8639 3644 8640 3644 8612 3643 8600
3642 8595 3642 8591 3613 8582 3607 8636
$$
BaggettWhat forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Nashville, TN wrote its last area forecast discussion before this flash flood warning went out at Aug 1, 6:45 AM CDT, 1 hour 58 minutes earlier. Its key messages:
- Updated at 635 AM CDT Sat Aug 1 2026
- There are medium to high chances for showers and storms on Saturday with a low risk for strong winds and also some risk for flash-flooding.
- There's at least a medium chance for showers on Sunday and Monday, but cooler than average temperatures will also stick around into early next week.
- Expect low rain and storm chances for the remainder of next week with temperatures warming back above seasonal norms closer to the weekend.
Area forecast discussion, Aug 1, 6:45 AM CDT, 1 hour 58 minutes before
Area Forecast Discussion National Weather Service Nashville TN 645 AM CDT Sat Aug 1 2026 ...New AVIATION... .KEY MESSAGES... Updated at 635 AM CDT Sat Aug 1 2026 - There are medium to high chances for showers and storms on Saturday with a low risk for strong winds and also some risk for flash-flooding. - There's at least a medium chance for showers on Sunday and Monday, but cooler than average temperatures will also stick around into early next week. - Expect low rain and storm chances for the remainder of next week with temperatures warming back above seasonal norms closer to the weekend. && .SHORT TERM... (Tonight through Sunday Night) Issued at 1027 PM CDT Fri Jul 31 2026 Another incredible July day is just about in the books and come to think of it, so is August and it looks like we're going to start the month off wet. After some pre-frontal showers earlier this evening west of I-65, we're already looking upstream at storms in southern Missouri that are headed this way. No severe is expected with anything overnight as CAPE values are sub-500 J/Kg and shear values remain low. The earlier rain and the overnight stuff are all part of a larger system that has really wrapped up over the mid-Mississippi valley this evening and as the attendant upper low digs into the Ohio and TN valleys tonight and tomorrow morning, you are going to feel the difference in humidity. Heck, I would argue most are already feeling it with dew points having jumped up into the low 70s just within the last several hours. This increase in moisture will help to fuel a few storms tonight into tomorrow morning and then after a break in the action during the late morning and early afternoon hours, the actual front will start to push through Middle TN. CAMs are very consistent with the bulk of the thunderstorm activity tomorrow being east of I-65 -- at least the stronger and heavier stuff -- some time between 4 pm and 9 pm. If you haven't seen, SPC did introduce a Slight Risk for our eastern counties in this window tomorrow. I have been talking about a low wind risk tomorrow and I really don't think it's much different after looking at forecast soundings again tonight. Poor lapse rates throughout this event should act to curb a more widespread wind event. Better lapse rates are expected to be seen north of us, which is why there's a better severe threat in KY and even a 2% tor risk. If for some reason those better lapse rates leak southward, there could be a low tornado risk here, too, but models have been very consistent for the last 4 nights indicating that won't be the case. So, a low wind risk and then the rainfall I've been talking about, too. I really like the idea that any flooding concerns will be very isolated, meaning we won't see any widespread flooding issues. Chances for 2"+ anywhere east of I-65 remain at 20-30%, so I think we're good there as 1-hr Flash Flood Guidance is still higher than that in the areas where the rain is expected. In the end, be weather aware tomorrow afternoon and evening and all should be well. After the core of the storms exit into East TN tomorrow evening, I don't think we're going to be completely done with the rain. Models continue to show the upper low pushing towards the mid-state on Sunday and this should keep rain chances in the forecast through the afternoon on Sunday. Not everybody will see rain, but many will with at least a medium chance for a shower or brief storm. In fact, several models have this upper low slow to exit the region and we could see showers from it into Monday now, as well. This would explain the slightly cooler temperatures now being seen Monday to start off the week. && .LONG TERM... (Monday through next Saturday) Issued at 1027 PM CDT Fri Jul 31 2026 I'm not sold on the rest of the forecast, especially as we near the middle of next week. One or two models have diurnal activity Tuesday and Wednesday and others are dry, so we'll have to work out those details over the next few days. Outside of that, we should see temperatures revert back to something closer to normal around Wednesday. && .AVIATION... (12Z TAFS) Issued at 635 AM CDT Sat Aug 1 2026 Morning convection rolls across Middle Tennessee this morning, with most of the terminals being impacted now or in the near future. Also look for surface winds to increase from the south this morning as a strong cold front approaches from the west, and will remain gusty throughout the day. We do expect a second round of convection to develop generally along and east of I-65 early this afternoon, and then progress eastward throughout the p.m. hours, with showers lingering on the Cumberland Plateau into the evening. Look for areas of fog and also low ceilings to develop later in the evening and especially overnight behind the fropa. && .PRELIMINARY POINT TEMPS/POPS... Nashville 90 65 83 62 / 70 10 70 30 Clarksville 86 69 80 69 / 50 20 70 30 Crossville 83 67 80 65 / 100 80 50 30 Columbia 90 68 83 68 / 50 0 70 20 Cookeville 85 68 80 67 / 90 60 60 40 Jamestown 84 67 81 66 / 100 80 60 30 Lawrenceburg 88 67 82 67 / 60 10 70 30 Murfreesboro 91 69 84 69 / 80 10 50 30 Waverly 86 68 79 67 / 40 10 80 30 && .OHX WATCHES/WARNINGS/ADVISORIES... None. && SHORT TERM...Unger LONG TERM....Unger AVIATION.....Rose
In the hours before
Local storm report, Aug 1, 7:14 AM CDT, 1 hour 29 minutes before
Preliminary Local Storm Report
National Weather Service Nashville TN
714 AM CDT Sat Aug 1 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0657 AM Flash Flood 1 NE Green Hill 36.24N 86.56W
08/01/2026 Wilson TN NWS Employee
Portion of Needmore Rd flooded with several
inches of standing water.
&&
APBThe office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 5:52 AM CDT | Flash Flood Warning | OHX | Davidson, Smith, Sumner, Trousdale, Wilson | 3 hr |
| Aug 1, 3:51 PM CDT | Special Weather Statement | OHX | Van Buren, Warren | 39 min |
| Aug 1, 4:03 PM CDT | Special Weather Statement | OHX | Grundy | 42 min |
| Aug 1, 6:57 PM CDT | Special Weather Statement | OHX | Jackson, Putnam, Smith | 48 min |
Nearby
Flash Flood Warnings in Tennessee, 2026Every flash flood warning in 2026
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.