Alert archive / Tennessee / Special Weather Statements in 2021

Special Weather Statement, NWS Nashville, TN

June 12, 2021Bedford County, Tennessee

NWS Nashville, TN issued this special weather statement at Jun 12, 2021, 12:26 PM CDT for Bedford County, Tennessee. It was in force for 19 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 12, 2021, 12:26 PM CDT (17:26 UTC)
Expired: Jun 12, 2021, 12:45 PM CDT
In force: 19 min
Issued by: NWS Nashville, TN

County Bedford County, TN

The radar

The Northeast Alabama radar (KHTX), 65 km from the middle of the area, began a volume at 17:28 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, 5.4 hours before the alert went out and 87 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: 1463 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 1034 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 12, 6:34 AM CDT, 5 hours 52 minutes earlier.

Area forecast discussion, Jun 12, 6:34 AM CDT, 5 hours 52 minutes before

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Hazardous weather outlook, Jun 12, 5:12 AM CDT, 7 hours 14 minutes before

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In the hours before

Special weather statement, Jun 12, 12:26 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Nashville TN
1226 PM CDT Sat Jun 12 2021

TNZ061-075-121745-
Bedford TN-Marshall TN-
1226 PM CDT Sat Jun 12 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN MARSHALL AND
SOUTHWESTERN BEDFORD COUNTIES UNTIL 1245 PM CDT...

At 1226 PM CDT, Doppler radar was tracking a strong thunderstorm near
Petersburg, or 11 miles west of Lynchburg, moving south at 30 mph.

Winds in excess of 40 mph will be possible with this storm and small
hail.

This storm will remain over mainly rural areas of southeastern
Marshall and southwestern Bedford Counties.

LAT...LON 3531 8667 3543 8666 3543 8646 3533 8646
      3536 8649 3536 8651 3535 8653 3536 8654
      3537 8659 3536 8660 3533 8660 3532 8664
      3531 8665
TIME...MOT...LOC 1726Z 001DEG 28KT 3532 8657

FB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 7:08 PM CDT	Flash Flood Warning	OHX	Rutherford	112 min
Jun 11, 7:55 PM CDT	Special Weather Statement	OHX	Hickman	50 min
Jun 11, 8:39 PM CDT	Areal Flood Advisory	OHX	Clay, Fentress, Jackson, Overton, Pickett, Putnam	3 hr
Jun 11, 8:43 PM CDT	Special Weather Statement	OHX	Fentress, Overton, Pickett	62 min
Jun 11, 10:15 PM CDT	Special Weather Statement	OHX	Sumner, Trousdale	45 min
Jun 12, 2:41 PM CDT	Special Weather Statement	OHX	Giles	49 min
Jun 12, 2:50 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Marshall	25 min
Jun 12, 3:02 PM CDT	Special Weather Statement	OHX	Humphreys	43 min
Jun 12, 3:10 PM CDT	Areal Flood Advisory	OHX	Giles, Marshall	2 hr
Jun 12, 3:15 PM CDT	Special Weather Statement	OHX	Giles	60 min
Jun 12, 3:27 PM CDT	Special Weather Statement	OHX	Marshall	48 min
Jun 12, 3:29 PM CDT	Special Weather Statement	OHX	Wayne	46 min
Jun 12, 4:14 PM CDT	Special Weather Statement	OHX	Wayne	61 min
Jun 12, 4:15 PM CDT	Special Weather Statement	OHX	Giles, Marshall	60 min
Jun 12, 4:17 PM CDT	Areal Flood Advisory	OHX	Giles, Marshall, Maury, Williamson	3 hr
Jun 12, 4:42 PM CDT	Special Weather Statement	OHX	Giles, Lawrence	33 min
Jun 12, 5:08 PM CDT	Special Weather Statement	OHX	Fentress, Pickett	52 min
Jun 12, 5:12 PM CDT	Special Weather Statement	OHX	Giles	48 min
Jun 12, 5:12 PM CDT	Special Weather Statement	OHX	Wayne	63 min
Jun 12, 5:41 PM CDT	Flash Flood Warning	OHX	Marshall, Maury, Williamson	3 hr
Jun 12, 5:42 PM CDT	Special Weather Statement	OHX	Marshall	48 min
Jun 12, 5:54 PM CDT	Special Weather Statement	OHX	Cumberland, Fentress	66 min
Jun 12, 6:41 PM CDT	Special Weather Statement	OHX	Dickson	49 min

Nearby

Special Weather Statements in Tennessee, 2021 Every special weather statement in 2021

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.