Alert archive / Tennessee / Flood Watches in 2025

Flood Watch 4, NWS Nashville, TN

March 31, 202529 counties in Tennessee

NWS Nashville, TN issued this flood watch at Mar 31, 2025, 2:56 PM CDT for 29 counties in Tennessee. It took effect at Apr 2, 2025, 7:00 PM CDT. It was in force for 4 days.

The area

The counties it named.

The facts

Issued: Mar 31, 2025, 2:56 PM CDT (19:56 UTC)
In effect from: Apr 2, 2025, 7:00 PM CDT
Expired: Apr 6, 2025, 10:47 AM CDT
In force: 4 days
Issued by: NWS Nashville, TN
Flood severity: None

All 29 counties

Bedford County, TN, Cannon County, TN, Cheatham County, TN, Clay County, TN, Coffee County, TN, Davidson County, TN, Dickson County, TN, Giles County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Macon County, TN, Marshall County, TN, Maury County, TN, Montgomery County, TN, Perry County, TN, Pickett County, TN, Robertson County, TN, Rutherford County, TN, Smith County, TN, Stewart County, TN, Sumner County, TN, Trousdale County, TN, Wayne County, TN, Williamson County, TN, Wilson County, TN

The radar

The Nashville radar (KOHX), 34 km from the middle of the area, began a volume at 19:55 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.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.9 hours before the alert went out and 313 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 748 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 780 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 158 m²/s²
0-3 km storm-relative helicity: 142 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flood watch 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 flood watch went out at Mar 31, 12:56 PM CDT, 2 hours earlier.

Area forecast discussion, Mar 31, 12:56 PM CDT, 2 hours before

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In the hours before

Local storm report, Mar 31, 9:16 AM CDT, 5 hours 40 minutes before

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Local storm report, Mar 31, 9:18 AM CDT, 5 hours 38 minutes before

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Local storm report, Mar 31, 9:42 AM CDT, 5 hours 14 minutes before

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Local storm report, Mar 31, 10:54 AM CDT, 4 hours 2 minutes before

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Local storm report, Mar 31, 11:17 AM CDT, 3 hours 39 minutes before

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Local storm report, Mar 31, 11:36 AM CDT, 3 hours 20 minutes before

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The office that day

Everything else NWS Nashville, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 30, 8:40 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery, Stewart	65 min
Mar 30, 9:07 PM CDT	Tornado Warning	OHX	Stewart	27 min
Mar 30, 9:11 PM CDT	Severe Thunderstorm Warning	OHX	Houston, Humphreys	64 min
Mar 30, 9:29 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Montgomery, Robertson	61 min
Mar 30, 9:50 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Houston, Humphreys	55 min
Mar 30, 9:55 PM CDT	Tornado Warning	OHX	Dickson, Houston, Humphreys	50 min
Mar 30, 10:06 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Robertson, Sumner	54 min
Mar 30, 10:18 PM CDT	Tornado Warning	OHX	Dickson, Hickman, Humphreys	42 min
Mar 30, 10:24 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Humphreys, Perry	21 min
Mar 30, 10:41 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Hickman, Humphreys, Maury and 2 more	64 min
Mar 30, 10:45 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OHX	Davidson, Macon, Robertson, Smith, Sumner, Trousdale and 1 more	60 min
Mar 30, 10:49 PM CDT	Tornado Warning	OHX	Perry	44 min
Mar 30, 10:53 PM CDT	Tornado Warning	OHX	Davidson, Dickson, Hickman, Williamson	52 min
Mar 30, 11:21 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OHX	Davidson, Hickman, Maury, Rutherford, Williamson, Wilson	54 min
Mar 30, 11:25 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis, Maury, Perry, Wayne	35 min
Mar 30, 11:38 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OHX	Clay, Jackson, Macon, Overton, Pickett, Smith and 1 more	49 min
Mar 30, 11:41 PM CDT	Tornado Warning	OHX	Rutherford, Williamson	49 min
Mar 30, 11:50 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Hickman, Lawrence, Lewis, Marshall, Maury	55 min
Mar 30, 11:58 PM CDT	Tornado Warning	OHX	Maury	32 min
Mar 31, 12:02 AM CDT	Severe Thunderstorm Warning	OHX	Lawrence, Wayne	58 min
Mar 31, 12:11 AM CDT	Severe Thunderstorm Warning	OHX	Cannon, DeKalb, Rutherford, Williamson, Wilson	64 min
Mar 31, 12:27 AM CDT	Tornado Warning	OHX	Lawrence, Lewis, Wayne	48 min
Mar 31, 12:41 AM CDT	Tornado Warning	OHX	Cannon, DeKalb, Warren	25 min
Mar 31, 12:56 AM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Lewis, Maury, Wayne	49 min
Mar 31, 12:58 AM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Van Buren, Warren, White	62 min
Mar 31, 1:05 AM CDT	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, Rutherford, Warren	55 min
Mar 31, 1:18 AM CDT	Special Weather Statement	OHX	Fentress, Overton, Putnam	42 min
Mar 31, 1:32 AM CDT	Special Weather Statement	OHX	Rutherford, Williamson	58 min
Mar 31, 1:35 AM CDT	Severe Thunderstorm Warning	OHX	Bedford, Giles, Marshall, Maury	29 min
Mar 31, 1:41 AM CDT	Special Weather Statement	OHX	Cheatham	34 min
Mar 31, 1:46 AM CDT	Severe Thunderstorm Warning	OHX	Coffee, Grundy, Van Buren, Warren	59 min
Mar 31, 1:51 AM CDT	Special Weather Statement	OHX	Cumberland	39 min
Mar 31, 1:52 AM CDT	Severe Thunderstorm Warning	OHX	Lawrence, Wayne	38 min
Mar 31, 2:00 AM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Putnam, White	35 min
Mar 31, 2:26 AM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence	38 min

Nearby

Flood Watches in Tennessee, 2025 Every flood watch in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.