Alert archive / Tennessee / Special Weather Statements in 2017

Special Weather Statement, NWS Nashville, TN

July 6, 2017Lewis County, Tennessee

NWS Nashville, TN issued this special weather statement at Jul 6, 2017, 7:56 AM CDT for Lewis County, Tennessee. It was in force for 64 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: Jul 6, 2017, 7:56 AM CDT (12:56 UTC)
Expired: Jul 6, 2017, 9:00 AM CDT
In force: 64 min
Issued by: NWS Nashville, TN

County Lewis County, TN

The radar

The Nashville radar (KOHX), 124 km from the middle of the area, began a volume at 12:59 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, 0.9 hours before the alert went out and 112 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: 817 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 669 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 145 m²/s²
0-3 km storm-relative helicity: 193 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.7

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 Jul 6, 6:27 AM CDT, 1 hour 29 minutes earlier.

Area forecast discussion, Jul 6, 6:27 AM CDT, 1 hour 29 minutes before

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Hazardous weather outlook, Jul 6, 5:01 AM CDT, 2 hours 55 minutes before

Hazardous Weather Outlook
National Weather Service Nashville TN
501 AM CDT Thu Jul 6 2017

TNZ005>011-023>034-056>066-075-077>080-093>095-071015-
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-
501 AM CDT Thu Jul 6 2017

This Hazardous Weather Outlook is for portions of Middle
Tennessee.

.DAY ONE...Today and Tonight

There is a marginal risk for severe storms again today into this
evening across Middle Tennessee. Scattered to numerous showers
and thunderstorms are once again, and a few may be strong to
severe with damaging winds, heavy rainfall, and localized
flash flooding.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

Shamburger

In the hours before

Special weather statement, Jul 6, 7:01 AM CDT, 55 minutes before

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Special weather statement, Jul 6, 7:56 AM CDT, 0 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
Jul 5, 7:55 PM CDT	Special Weather Statement	OHX	Dickson, Houston, Humphreys, Perry	50 min
Jul 5, 8:03 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Humphreys, Perry	42 min
Jul 5, 8:31 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Houston, Humphreys	44 min
Jul 5, 8:43 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Humphreys, Perry	32 min
Jul 5, 8:48 PM CDT	Tornado Warning	OHX	Houston, Humphreys	27 min
Jul 5, 9:04 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Hickman, Maury, Williamson	41 min
Jul 5, 9:09 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Houston, Humphreys, Montgomery	36 min
Jul 5, 9:18 PM CDT	Special Weather Statement	OHX	Hickman, Lewis	42 min
Jul 5, 9:38 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Hickman, Williamson	37 min
Jul 5, 9:47 PM CDT	Special Weather Statement	OHX	Cheatham, Montgomery, Robertson	43 min
Jul 6, 12:18 AM CDT	Special Weather Statement	OHX	Williamson	27 min
Jul 6, 1:06 AM CDT	Areal Flood Advisory	OHX	Bedford, Marshall, Maury, Rutherford	114 min
Jul 6, 7:01 AM CDT	Special Weather Statement	OHX	Wayne	59 min
Jul 6, 8:44 AM CDT	Special Weather Statement	OHX	Maury	31 min
Jul 6, 9:01 AM CDT	Special Weather Statement	OHX	Marshall	29 min
Jul 6, 9:15 AM CDT	Special Weather Statement	OHX	Rutherford	30 min
Jul 6, 9:28 AM CDT	Special Weather Statement	OHX	Coffee	47 min
Jul 6, 10:06 AM CDT	Special Weather Statement	OHX	Grundy	39 min
Jul 6, 10:29 AM CDT	Special Weather Statement	OHX	Van Buren	46 min
Jul 6, 4:12 PM CDT	Special Weather Statement	OHX	Clay, Jackson, Overton	48 min
Jul 6, 4:51 PM CDT	Special Weather Statement	OHX	Fentress, Overton, Pickett	39 min
Jul 6, 4:54 PM CDT	Special Weather Statement	OHX	Marshall	36 min
Jul 6, 4:59 PM CDT	Special Weather Statement	OHX	Rutherford	31 min
Jul 6, 5:26 PM CDT	Special Weather Statement	OHX	Fentress, Overton	49 min
Jul 6, 5:29 PM CDT	Special Weather Statement	OHX	Cannon, Warren	46 min
Jul 6, 5:45 PM CDT	Special Weather Statement	OHX	Bedford, Marshall	45 min
Jul 6, 6:13 PM CDT	Special Weather Statement	OHX	Putnam	47 min
Jul 6, 6:27 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Overton, Putnam	30 min

Nearby

Special Weather Statements in Tennessee, 2017 Every special weather statement in 2017

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.