Alert archive / Tennessee / Special Weather Statements in 2016

Special Weather Statement, NWS Nashville, TN

July 29, 2016Sumner County, Tennessee

NWS Nashville, TN issued this special weather statement at Jul 29, 2016, 12:08 PM CDT for Sumner County, Tennessee. It was in force for 37 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 29, 2016, 12:08 PM CDT (17:08 UTC)
Expired: Jul 29, 2016, 12:45 PM CDT
In force: 37 min
Issued by: NWS Nashville, TN

County Sumner County, TN

The radar

The Nashville radar (KOHX), 12 km from the middle of the area, began a volume at 17:08 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, 5.1 hours before the alert went out and 25 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: 777 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 722 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 99 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

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 29, 10:20 AM CDT, 1 hour 48 minutes earlier.

Area forecast discussion, Jul 29, 10:20 AM CDT, 1 hour 48 minutes before

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Hazardous weather outlook, Jul 29, 5:26 AM CDT, 6 hours 42 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
526 AM CDT FRI JUL 29 2016

TNZ005>011-023>034-056>066-075-077>080-093>095-301030-
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-
526 AM CDT FRI JUL 29 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF MIDDLE
TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

A FEW STRONG THUNDERSTORMS WITH LOCALIZED FLOODING AND GUSTY
WINDS OVER 40 MPH ARE POSSIBLE THROUGH THIS EVENING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

PLEASE REPORT ANY FLOODING OR SEVERE WEATHER TO THE NATIONAL
WEATHER SERVICE IN NASHVILLE.

HURLEY

In the hours before

Local storm report, Jul 29, 10:35 AM CDT, 1 hour 33 minutes before

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Special weather statement, Jul 29, 12:08 PM 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 29, 1:32 AM CDT	Areal Flood Advisory	OHX	Montgomery, Robertson	118 min
Jul 29, 3:30 AM CDT	Areal Flood Advisory	OHX	Smith, Sumner, Trousdale, Wilson	3 hr
Jul 29, 10:44 AM CDT	Areal Flood Advisory	OHX	Robertson, Sumner	3 hr
Jul 29, 11:37 AM CDT	Flash Flood Warning	OHX	Macon, Sumner, Trousdale	2 hr
Jul 29, 12:54 PM CDT	Flash Flood Warning	OHX	Macon, Smith, Sumner, Trousdale, Wilson	3 hr
Jul 29, 12:56 PM CDT	Flash Flood Warning	OHX	Clay, Jackson	3 hr
Jul 29, 1:04 PM CDT	Special Weather Statement	OHX	Smith	41 min
Jul 29, 1:55 PM CDT	Areal Flood Warning	OHX	Macon, Sumner, Trousdale	2 hr
Jul 29, 1:59 PM CDT	Special Weather Statement	OHX	Putnam	46 min
Jul 29, 2:53 PM CDT	Special Weather Statement	OHX	Sumner	52 min
Jul 29, 3:42 PM CDT	Areal Flood Warning	OHX	Clay, Jackson	2 hr
Jul 29, 3:44 PM CDT	Areal Flood Warning	OHX	Macon, Smith, Sumner, Trousdale, Wilson	2 hr

Nearby

Special Weather Statements in Tennessee, 2016 Every special weather statement in 2016

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.