Alert archive / Tennessee / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 114, NWS Nashville, TN

May 25, 2020Macon County, Sumner County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at May 25, 2020, 3:44 PM CDT for Macon County, Sumner County, Tennessee. It was in force for 25 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: May 25, 2020, 3:44 PM CDT (20:44 UTC)
Expired: May 25, 2020, 4:09 PM CDT
In force: 25 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Macon County, TN, Sumner County, TN

The radar

The Nashville radar (KOHX), 41 km from the middle of the area, began a volume at 20:46 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.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.7 hours before the alert went out and 53 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: 607 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 1082 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 65 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 May 25, 2:56 PM CDT, 48 minutes earlier.

Area forecast discussion, May 25, 2:56 PM CDT, 48 minutes before

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Hazardous weather outlook, May 25, 5:49 AM CDT, 9 hours 55 minutes before

Hazardous Weather Outlook
National Weather Service Nashville TN
549 AM CDT Mon May 25 2020

TNZ005>011-023>034-056>066-075-077>080-093>095-261030-
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-
549 AM CDT Mon May 25 2020

This Hazardous Weather Outlook is for portions of Middle Tennessee.

.DAY ONE...Today and Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, May 25, 1:55 PM CDT, 1 hour 49 minutes before

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Special weather statement, May 25, 2:13 PM CDT, 1 hour 31 minutes before

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Special weather statement, May 25, 2:32 PM CDT, 1 hour 12 minutes before

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Special weather statement, May 25, 2:46 PM CDT, 58 minutes before

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Special weather statement, May 25, 3:26 PM CDT, 18 minutes before

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Special weather statement, May 25, 3:30 PM CDT, 14 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
May 25, 12:03 PM CDT	Special Weather Statement	OHX	Pickett	27 min
May 25, 12:24 PM CDT	Special Weather Statement	OHX	Overton	36 min
May 25, 12:54 PM CDT	Areal Flood Advisory	OHX	Overton, Pickett	67 min
May 25, 2:13 PM CDT	Special Weather Statement	OHX	Jackson	32 min
May 25, 2:32 PM CDT	Special Weather Statement	OHX	Trousdale	28 min
May 25, 2:46 PM CDT	Special Weather Statement	OHX	Williamson	29 min
May 25, 3:21 PM CDT	Areal Flood Advisory	OHX	Fentress, Overton, Pickett	3 hr
May 25, 3:26 PM CDT	Special Weather Statement	OHX	Rutherford, Williamson	49 min
May 25, 3:30 PM CDT	Special Weather Statement	OHX	Wilson	45 min
May 25, 3:51 PM CDT	Special Weather Statement	OHX	Davidson	39 min
May 25, 4:11 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Sumner, Wilson	34 min
May 25, 4:24 PM CDT	Special Weather Statement	OHX	Wilson	51 min
May 25, 4:42 PM CDT	Special Weather Statement	OHX	Robertson	48 min
May 25, 4:50 PM CDT	Special Weather Statement	OHX	Wilson	40 min
May 25, 4:58 PM CDT	Areal Flood Advisory	OHX	Davidson, Rutherford, Sumner, Wilson	2 hr
May 25, 5:12 PM CDT	Special Weather Statement	OHX	Robertson	33 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2020 Every severe thunderstorm warning in 2020

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.