Alert archive / Tennessee / Heat Advisories in 2016

Heat Advisory 4, NWS Nashville, TN

August 5, 201610 counties in Tennessee

NWS Nashville, TN issued this heat advisory at Aug 5, 2016, 3:34 AM CDT for 10 counties in Tennessee. It took effect at Aug 5, 2016, 12:00 PM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Aug 5, 2016, 3:34 AM CDT (08:34 UTC)
In effect from: Aug 5, 2016, 12:00 PM CDT
Expired: Aug 5, 2016, 7:00 PM CDT
In force: 7 hr
Issued by: NWS Nashville, TN

Counties Dickson County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Lawrence County, TN, Lewis County, TN, Montgomery County, TN, Perry County, TN, Stewart County, TN, Wayne County, TN

The radar

The Ft Campbell radar (KHPX), 98 km from the middle of the area, began a volume at 08:35 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 00:00Z, 8.6 hours before the alert went out and 94 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: 1623 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1022 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 17 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 heat advisory 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 heat advisory went out at Aug 5, 3:18 AM CDT, 16 minutes earlier.

Area forecast discussion, Aug 5, 3:18 AM CDT, 16 minutes before

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Hazardous weather outlook, Aug 4, 5:56 AM CDT, 21 hours 38 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
556 AM CDT THU AUG 4 2016

TNZ005>011-023>034-056>066-075-077>080-093>095-051100-
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-
556 AM CDT THU AUG 4 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF MIDDLE
TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

A FEW STORMS MAY BE STRONG TO MARGINALLY SEVERE TODAY WITH THE
MAIN THREAT BEING DAMAGING STRAIGHT LINE WINDS AND LOCALIZED
FLOODING THROUGH 9 PM.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

HURLEY

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 7:10 PM CDT	Severe Thunderstorm Warning	OHX	Rutherford	35 min
Aug 4, 7:18 PM CDT	Flash Flood Warning	OHX	Rutherford	117 min
Aug 4, 7:36 PM CDT	Special Weather Statement	OHX	Cheatham	39 min
Aug 4, 8:02 PM CDT	Special Weather Statement	OHX	Rutherford	43 min
Aug 4, 8:10 PM CDT	Areal Flood Advisory	OHX	Davidson, Rutherford, Williamson	2 hr
Aug 4, 8:33 PM CDT	Special Weather Statement	OHX	Williamson	27 min
Aug 5, 1:24 PM CDT	Special Weather Statement	OHX	Sumner	36 min
Aug 5, 2:17 PM CDT	Special Weather Statement	OHX	Wilson	28 min
Aug 5, 3:37 PM CDT	Special Weather Statement	OHX	Robertson	23 min
Aug 5, 3:57 PM CDT	Special Weather Statement	OHX	Sumner	33 min
Aug 5, 4:05 PM CDT	Special Weather Statement	OHX	Robertson	40 min
Aug 5, 4:41 PM CDT	Special Weather Statement	OHX	Davidson, Sumner	49 min
Aug 5, 4:44 PM CDT	Special Weather Statement	OHX	Montgomery	31 min
Aug 5, 5:44 PM CDT	Special Weather Statement	OHX	Montgomery	31 min

Nearby

Heat Advisories in Tennessee, 2016 Every heat advisory 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.