Alert archive / Tennessee / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 162, NWS Nashville, TN

June 2, 2009Lawrence County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jun 2, 2009, 2:48 PM CDT for Lawrence County, Tennessee. It was in force for 27 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 2, 2009, 2:48 PM CDT (19:48 UTC)
Expired: Jun 2, 2009, 3:15 PM CDT
In force: 27 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

County Lawrence County, TN

The radar

The Northeast Alabama radar (KHTX), 120 km from the middle of the area, began a volume at 19:51 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 7.8 hours before the alert went out and 117 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: 1479 J/kg
Mixed-layer CIN: -72 J/kg
Mixed-layer LCL: 1358 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 30 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.

000 
WUUS54 KOHX 021948
SVROHX
TNC099-022015-
/O.NEW.KOHX.SV.W.0162.090602T1948Z-090602T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
248 PM CDT TUE JUN 2 2009

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LAWRENCE COUNTY IN MIDDLE TENNESSEE...

* UNTIL 315 PM CDT

* AT 247 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  LAWRENCEBURG...AND MOVING NORTHEAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LAWRENCEBURG BY 310 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 3517 8757 3544 8741 3534 8721 3532 8721
      3531 8724 3530 8721 3527 8721 3508 8738
TIME...MOT...LOC 1948Z 211DEG 11KT 3521 8742

$$

JLM

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jun 2, 3:38 AM CDT, 11 hours 10 minutes earlier.

Area forecast discussion, Jun 2, 3:38 AM CDT, 11 hours 10 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
338 AM CDT TUE JUN 2 2009

.SHORT TERM...IT WAS PARTLY CLOUDY AND MILD ACROSS THE MID STATE
EARLY THIS MORNING, WITH TEMPERATURES RANGING FROM THE MID 60S TO
AROUND 70.

FORECAST FOR TODAY IS PARTIALLY HINGED TO POTENTIAL FOR SOUTHEASTWARD
-PROPAGATING OUTFLOW BOUNDARIES FROM CONVECTION TO OUR NORTH. AN
OUTFLOW BOUNDARY LAID DOWN BY AN MCS CROSSING THE OHIO VALLEY ON
MONDAY PRODUCED ISOLATED THUNDERSTORMS IN MIDDLE TENNESSEE MONDAY
AFTERNOON. BAND OF THUNDERSTORMS, STRETCHING ACROSS THE MIDWEST
AND OHIO VALLEY TODAY, WILL LEAVE US VULNERABLE ONCE AGAIN TO
OUTFLOW INTRUSIONS. INDEED, EARLY THIS MORNING, WE CAN SEE ANOTHER
OUTFLOW PUSHING RAPIDLY SOUTHEASTWARD INTO SOUTHEASTERN MISSOURI.
IN ADDITION, MODELS SHOW AN INCREASE IN MOISTURE IN THE 850-700MB
LAYER ACROSS MIDDLE TN TODAY, WHICH WILL INCREASE POSSIBILITY FOR
ISOLATED THUNDERSTORM DEVELOPMENT IN THE 90+ DEG AFTERNOON HEAT.
BELIEVE THE CHANCE FOR ANY PARTICULAR SPOT TO GET A THUNDERSTORM
IS STILL QUITE SMALL, BUT THOSE THAT GET THEM COULD SEE SOME GUSTY
WINDS, DOWNPOURS AND HAIL (SIMILAR TO WHAT WE SAW YESTERDAY).

COLD FRONT STILL EXPECTED TO PUSH SOUTHWARD INTO OUR AREA BY LATE IN
THE DAY WEDNESDAY, THEN MOVE ONLY SLOWLY SOUTHWARD THROUGH THURSDAY,
AS A LOW PRESSURE AREA DEVELOPS ALONG FRONTAL BOUNDARY OVER EASTERN
ARKANSAS AND TRACKS EASTWARD. ISOLATED ELEVATED THUNDERSTORMS
POSSIBLE NORTH OF SURFACE BOUNDARY ON THURSDAY. HOWEVER, RAIN SHOULD
FINALLY START TO TAPER OFF FROM THE WEST THURSDAY NIGHT AND FRIDAY,
WITH THUNDERSTORMS LINGERING LONGEST OVER OUR MOST SOUTHEASTERN
COUNTIES.

A HEAVY RAIN EVENT IS LIKELY DURING THE WED-FRI PERIOD, WITH MOST
AREAS EXPECTED TO RECEIVE STORM TOTALS OF AROUND 2 INCHES...AND
LOCALLY HIGHER AMOUNTS POSSIBLE. ISOLATED FLOOD PROBLEMS COULD
DEVELOP DURING THE PERIOD.

.LONG TERM...LOOKS LIKE WE COULD SQUEEZE OUT A MOSTLY DRY WEEKEND
SIMILAR TO LAST WEEKEND, AS A WEAK AREA OF HIGH PRESSURE CROSSES
OUR AREA. HOWEVER, ANOTHER COLD FRONT DROPS INTO THE REGION EARLY
NEXT WEEK AND LEADS TO AN INCREASED CHANCE FOR THUNDERSTORMS BY
TUESDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
NASHVILLE      92  67  87  64 /  10  10  60  60
CLARKSVILLE    91  64  84  61 /  10  10  60  60
CROSSVILLE     86  61  82  61 /  10  10  40  60
COLUMBIA       91  67  88  65 /  10  10  40  60
LAWRENCEBURG   92  66  91  65 /  10  10  40  60
WAVERLY        91  66  86  63 /  10  10  60  60

&&

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

19

Hazardous weather outlook, Jun 2, 5:00 AM CDT, 9 hours 48 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
500 AM CDT TUE JUN 2 2009

TNZ005>011-022>034-056>066-075-077>080-093>095-031030-
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-DEKALB-WHITE-
CUMBERLAND-BEDFORD-COFFEE-WARREN-GRUNDY-VAN BUREN-WAYNE-LAWRENCE-
GILES-
500 AM CDT TUE JUN 2 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A SLOW MOVING COLD FRONT WILL BRING SHOWERS AND THUNDERSTORMS TO
MIDDLE TENNESSEE WEDNESDAY THROUGH THURSDAY NIGHT, WITH SOME
ACTIVE WEATHER LASTING INTO FRIDAY ALONG THE CUMBERLAND PLATEAU.
HEAVY RAIN IS EXPECTED WITH THIS SYSTEM. STORM TOTAL AMOUNTS WILL
AVERAGE AROUND 2 INCHES, WITH LOCALLY HEAVIER AMOUNTS POSSIBLE. AS
A RESULT, ISOLATED FLOODING IS POSSIBLE WITH THIS SYSTEM.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS AND LOCAL EMERGENCY MANAGEMENT OFFICIALS ARE ENCOURAGED
TO REPORT HEAVY RAINFALL AMOUNTS TO THE NATIONAL WEATHER SERVICE
IN NASHVILLE.

ROSE

In the hours before

Local storm report, Jun 2, 12:16 PM CDT, 2 hours 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1216 PM CDT TUE JUN 02 2009

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

1214 PM     HAIL             OLD HICKORY             36.26N 86.65W
06/02/2009  E0.75 INCH       DAVIDSON           TN   AMATEUR RADIO

            REPORTED BY PUBLIC.

&&

MTP

Local storm report, Jun 2, 12:24 PM CDT, 2 hours 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1224 PM CDT TUE JUN 02 2009

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

1223 PM     HAIL             HENDERSONVILLE          36.29N 86.60W
06/02/2009  E0.88 INCH       SUMNER             TN   TRAINED SPOTTER

            AT INTERSECTION OF CURTIS CROSS ROAD AND SAUNDERS FERRY
            ROAD IN HENDERSONVILLE.

&&

MTP

Local storm report, Jun 2, 12:45 PM CDT, 2 hours 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1245 PM CDT TUE JUN 02 2009

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

1235 PM     HAIL             2 W CENTERVILLE         35.79N 87.49W
06/02/2009  E0.75 INCH       HICKMAN            TN   LAW ENFORCEMENT

            PENNY SIZE HAIL REPORTED BY S.O. NEAR CENTERVILLE.

&&

JLM

Local storm report, Jun 2, 1:06 PM CDT, 1 hour 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
106 PM CDT TUE JUN 02 2009

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

0103 PM     HAIL             8 SE HOHENWALD          35.47N 87.46W
06/02/2009  E0.75 INCH       LEWIS              TN   PUBLIC

            PENNEY SIZE HAIL REPORTED BY PUBLIC NEAR THE INTERSECTION
            OF SUMMERTOWN RD AND NATCHEZ TRACE PARKWAY

&&

JLM

Local storm report, Jun 2, 2:10 PM CDT, 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
210 PM CDT TUE JUN 02 2009

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

0209 PM     HAIL             9 N COLUMBIA            35.75N 87.05W
06/02/2009  E0.75 INCH       MAURY              TN   PUBLIC

&&

MDAVIS

Local storm report, Jun 2, 2:30 PM CDT, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
230 PM CDT TUE JUN 02 2009

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

0140 PM     HAIL             3 S KINGSTON SPRINGS    36.05N 87.10W
06/02/2009  E0.75 INCH       WILLIAMSON         TN   PUBLIC

&&

MDAVIS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 2, 12:02 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Sumner, Wilson	35 min
Jun 2, 12:15 PM CDT	Severe Thunderstorm Warning	OHX	Hickman	30 min
Jun 2, 12:47 PM CDT	Severe Thunderstorm Warning	OHX	Hickman	23 min
Jun 2, 12:57 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis, Maury	33 min
Jun 2, 1:52 PM CDT	Severe Thunderstorm Warning	OHX	Maury, Williamson	23 min
Jun 2, 1:55 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Williamson	35 min
Jun 2, 2:18 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence	27 min
Jun 2, 2:38 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Robertson	37 min
Jun 2, 2:55 PM CDT	Flash Flood Warning	OHX	Lawrence	3 hr
Jun 2, 4:39 PM CDT	Severe Thunderstorm Warning	OHX	Macon, Smith, Trousdale	21 min
Jun 2, 5:26 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Jackson, Macon	34 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2009 Every severe thunderstorm warning in 2009

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.