Alert archive / Tennessee / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 20, NWS Nashville, TN

March 3, 20235 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Mar 3, 2023, 11:26 AM CST for 5 counties in Tennessee. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 3, 2023, 11:26 AM CST (17:26 UTC)
Expired
Mar 3, 2023, 12:00 PM CST
In force
34 min
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Damage threat
Considerable
Hail
0.75 in
Wind
70.0 mph

Counties Bedford County, TN, Cannon County, TN, Coffee County, TN, Marshall County, TN, Rutherford County, TN

The radar

The Nashville radar (KOHX), 72 km from the middle of the area, began a volume at 17:30 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 3, 6:24 AM CSTTornado WatchSPC7 hr
Mar 3, 10:34 AM CSTTornado WatchSPC5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 5.4 hours before the alert went out and 60 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-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 2023-03-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2023-03-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 624 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
594 m above ground
0-6 km bulk shear
85 kt
0-1 km storm-relative helicity
624 m²/s²
0-3 km storm-relative helicity
822 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Mar 3, 11:25 AM CST, 1 minute earlier.

Area forecast discussion, Mar 3, 11:25 AM CST, 1 minute before
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Hazardous weather outlook, Mar 3, 3:31 AM CST, 7 hours 55 minutes before
Hazardous Weather Outlook
National Weather Service Nashville TN
331 AM CST Fri Mar 3 2023

TNZ005>011-023>034-056>066-075-077>080-093>095-040945-
Stewart-Montgomery-Robertson-Sumner-Macon-Clay-Pickett-Houston-
Humphreys-Dickson-Cheatham-Davidson-Wilson-Trousdale-Smith-Jackson-
Putnam-Overton-Fentress-Perry-Hickman-Lewis-Williamson-Maury-
Marshall-Rutherford-Cannon-De Kalb-White-Cumberland-Bedford-Coffee-
Warren-Grundy-Van Buren-Wayne-Lawrence-Giles-
331 AM CST Fri Mar 3 2023

...corrected....

This Hazardous Weather Outlook is for Middle Tennessee.

.DAY ONE...Today and tonight.

Strong gradient winds are expected to start blowing around 6 am and
by 9 am, sustained winds of 25 to 40 mph with gusts up to 60 mph
will be possible. Winds will begin relaxing around 6 pm Friday
evening.

Mixed into the non-thunderstorm winds, several severe storms will be
possible. Additional damaging straight line winds and a few
tornadoes will be possible from 9 am in the west to about 3 pm on the
Cumberland Plateau.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed today. Please relay any
information about observed severe weather to the NWS while following
all local and state guidelines.

21

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 3, 10:54 AM CSTSevere Thunderstorm Warning Considerable damage threatOHXMontgomery15 min
Mar 3, 10:55 AM CSTSevere Thunderstorm Warning Considerable damage threatOHXBedford, Giles, Lawrence, Marshall, Maury35 min
Mar 3, 11:20 AM CSTSevere Thunderstorm Warning Considerable damage threatOHXCheatham, Davidson, Robertson, Sumner, Williamson25 min
Mar 3, 11:28 AM CSTSevere Thunderstorm Warning Considerable damage threatOHXBedford, Davidson, Marshall, Rutherford, Sumner, Williamson and 1 more47 min
Mar 3, 11:49 AM CSTSevere Thunderstorm Warning Considerable damage threatOHXDavidson, Robertson, Sumner26 min
Mar 3, 11:56 AM CSTSevere Thunderstorm Warning Considerable damage threatOHXBedford, Cannon, Coffee, DeKalb, Rutherford, Warren and 2 more34 min
Mar 3, 12:15 PM CSTSevere Thunderstorm Warning Considerable damage threatOHXClay, Jackson, Macon, Overton, Smith, Trousdale30 min
Mar 3, 12:24 PM CSTSevere Thunderstorm Warning Considerable damage threatOHXCumberland, DeKalb, Fentress, Overton, Putnam, Van Buren and 2 more36 min
Mar 3, 1:00 PM CSTSevere Thunderstorm Warning Considerable damage threatOHXFentress, Overton, Pickett, Putnam30 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2023Every severe thunderstorm warning in 2023

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.