Alert archive / Tennessee / Special Weather Statements in 2012

Special Weather Statement, NWS Nashville, TN

May 19, 2012Cheatham County, Tennessee

NWS Nashville, TN issued this special weather statement at May 19, 2012, 6:15 PM CDT for Cheatham County, Tennessee. It was in force for 45 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: May 19, 2012, 6:15 PM CDT (23:15 UTC)
Expired: May 19, 2012, 7:00 PM CDT
In force: 45 min
Issued by: NWS Nashville, TN

County Cheatham County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.3 hours before the alert went out and 57 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: 833 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 1141 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 May 19, 5:27 PM CDT, 48 minutes earlier.

Area forecast discussion, May 19, 5:27 PM CDT, 48 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
527 PM CDT SAT MAY 19 2012

.MESOSCALE UPDATE...
WESTERN EXTENSION OF CAROLINA UPPER TROUGH REMAINS OVER THE TENNESSEE
VALLEY THIS AFTERNOON AND THIS COUPLED WITH STEEP MID LEVEL LAPSE
RATES AND COOL MID LEVEL TEMPS (-15 CELSIUS AT 500 MB) EXPECT
ISOLATED HAILERS AND WET DOWNBURSTS TO CONTINUE OVER MY CWA
THROUGH ABOUT 02Z. 12Z OHX RAOB SHOWING A SOMEWHAT MOIST ATMOSPHERE
WITH A 1.22 INCH PRECIPITABLE H2O VALUE. TOTAL TOTALS AT 55 WITH
PLENTY OF POSITIVE ENERGY AVAILABLE.

BOYD

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

BOYD

Hazardous weather outlook, May 19, 5:00 AM CDT, 13 hours 15 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
500 AM CDT SAT MAY 19 2012

TNZ005>011-022>034-056>066-075-077>080-093>095-201030-
STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-PICKETT-BENTON-
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-
500 AM CDT SAT MAY 19 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

ISOLATED THUNDERSTORMS ARE ONCE AGAIN EXPECTED TO DEVELOP DURING
THE AFTERNOON. A FEW OF THESE STORMS MAY BECOME STRONG, WITH SMALL
HAIL BEING THE PRIMARY THREAT. DUE TO WEAK UPPER-LEVEL WINDS,
STORM MOVEMENT WILL BE SLOW, AND HEAVY RAINFALL IS LIKELY WITH THE
STRONGER CELLS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

ROSE

In the hours before

Local storm report, May 19, 5:49 PM CDT, 26 minutes before

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Local storm report, May 19, 5:50 PM CDT, 25 minutes before

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Local storm report, May 19, 6:03 PM CDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
603 PM CDT SAT MAY 19 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 PM     HAIL             LEBANON                 36.21N 86.32W
05/19/2012  M1.75 INCH       WILSON             TN   TRAINED SPOTTER

            IN THE CITY OF LEBANON.

&&

BBOYD

Local storm report, May 19, 6:10 PM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
610 PM CDT SAT MAY 19 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0609 PM     HAIL             1 N LEBANON             36.22N 86.32W
05/19/2012  E1.00 INCH       WILSON             TN   TRAINED SPOTTER

            HAILED FOR 10 MINUTES

&&

RET

Local storm report, May 19, 6:13 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
613 PM CDT SAT MAY 19 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0550 PM     FLOOD            MURFREESBORO            35.85N 86.39W
05/19/2012                   RUTHERFORD         TN   TRAINED SPOTTER

            SPOTTER REPORTED STANDING WATER ALONG I-24 AT EXIT 81 IN
            MURFREESBORO

&&

SHAMBURGER

Special weather statement, May 19, 6:15 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
615 PM CDT SAT MAY 19 2012

TNZ025-026-200000-
CHEATHAM-DICKSON-
615 PM CDT SAT MAY 19 2012

...SIGNIFICANT WEATHER ADVISORY FOR CHEATHAM AND DICKSON COUNTIES...

AT 612 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 7 MILES NORTHWEST OF ASHLAND CITY...MOVING SOUTH
AT 10 MPH.

NICKEL SIZE HAIL...AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS
STORM.

LAT...LON 3642 8706 3640 8702 3611 8704 3615 8733
      3636 8727 3636 8726 3637 8726 3641 8720
      3640 8718 3643 8718 3642 8715 3643 8715

SHAMBURGER

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 7:00 PM CDT	Severe Thunderstorm Warning	OHX	Marshall, Maury, Williamson	45 min
May 19, 2:19 PM CDT	Special Weather Statement	OHX	Van Buren	26 min
May 19, 2:31 PM CDT	Severe Thunderstorm Warning	OHX	Van Buren, White	31 min
May 19, 3:08 PM CDT	Severe Thunderstorm Warning	OHX	White	24 min
May 19, 3:38 PM CDT	Special Weather Statement	OHX	White	37 min
May 19, 3:42 PM CDT	Special Weather Statement	OHX	Cumberland	33 min
May 19, 4:10 PM CDT	Special Weather Statement	OHX	Cannon	50 min
May 19, 4:22 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, Coffee, Rutherford, Warren	53 min
May 19, 4:24 PM CDT	Severe Thunderstorm Warning	OHX	Robertson	22 min
May 19, 4:50 PM CDT	Special Weather Statement	OHX	Montgomery	40 min
May 19, 4:55 PM CDT	Special Weather Statement	OHX	Rutherford	50 min
May 19, 5:02 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, Rutherford	43 min
May 19, 5:03 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery, Robertson	27 min
May 19, 5:05 PM CDT	Special Weather Statement	OHX	Maury	25 min
May 19, 5:14 PM CDT	Special Weather Statement	OHX	Cheatham	46 min
May 19, 5:33 PM CDT	Special Weather Statement	OHX	Wilson	57 min
May 19, 5:39 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Marshall, Rutherford, Williamson	51 min
May 19, 5:45 PM CDT	Special Weather Statement	OHX	Hickman	45 min
May 19, 5:47 PM CDT	Severe Thunderstorm Warning	OHX	Sumner, Trousdale, Wilson	43 min
May 19, 5:58 PM CDT	Areal Flood Advisory	OHX	Bedford, Rutherford	2 hr
May 19, 6:21 PM CDT	Special Weather Statement	OHX	Giles	39 min
May 19, 6:23 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Rutherford, Williamson	52 min

Nearby

Special Weather Statements in Tennessee, 2012 Every special weather statement in 2012

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.