Alert archive / Tennessee / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 37, NWS Nashville, TN

April 24, 20107 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Apr 24, 2010, 5:25 PM CDT for 7 counties in Tennessee. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 24, 2010, 5:25 PM CDT (22:25 UTC)
Expired: Apr 24, 2010, 6:00 PM CDT
In force: 35 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Cheatham County, TN, Dickson County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Montgomery County, TN, Robertson County, TN

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 24, 1:17 PM CDT	Tornado Watch PDS	SPC	8 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.4 hours before the alert went out and 71 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: 23 J/kg
Mixed-layer CIN: -162 J/kg
Mixed-layer LCL: 1184 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 137 m²/s²
0-3 km storm-relative helicity: 272 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

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 Apr 24, 3:45 PM CDT, 1 hour 40 minutes earlier.

Area forecast discussion, Apr 24, 3:45 PM CDT, 1 hour 40 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
345 PM CDT SAT APR 24 2010

.DISCUSSION...
LATEST ANALYSIS SHOWING DOUBLE-BARREL TYPE SFC LOW OVER MO/AR/OK/KS
VICINITY WITH ASSOCIATED WARM FRONT EXTENDING JUST SOUTH OF THE CWA.
WIND STRUCTURE REMAINS VERY FAVORABLE BUT MASS OF PCPN AND LOW CLOUDS
KEEPING SFC BASED INSTABILITY ON LOWER SIDE.

BREAKS IN CLOUDS/WARMING BACK DOWN TO THE SOUTHWEST EXPECTED TO LIFT
OVER THE REGION A LITTLE LATER BEHIND WARM FRONT...MAKING CONDITIONS
LITTLE MORE FAVORABLE FOR SVR/ISO TOR DEVELOPMENT INTO THE EVENING.
THESE CONDITIONS LIKELY TO WORK EAST OF THE AREA 02-05Z SUN...REDUCING
SVR WX THREAT TOWARD MIDNIGHT. BY 12Z SUN...SFC LOW EXPECTED TO BE
IN MIDWEST...WITH SFC/LL LEADING ACTIVE BOUNDARIES WELL EAST.
HOWEVER...LATER IN THE DAY WEAK SECONDARY SFC/LL BOUNDARY PASSES
WHICH MAY SET OF A FEW SHWRS/STORMS...ESPECIALLY NORTH.

COMBINATION OF WEAK SFC/LL BOUNDARIES AND PASSING UL AXES FROM SFC/UL
LOWS MOVING ACROSS THE OH VALLEY MAY BRING ADDITIONAL SHOWERS TO THE
AREA SUNDAY NIGHT THRU TUESDAY AS WELL.

EARLY WEDNESDAY...SFC/LL HIGH AND UL RIDGE MOVES IN AND HOLDS POSITION
INTO LATER THURSDAY...RETURNING DRY WX TO THE AREA THRU THAT
PERIOD.

NEXT STORM SYSTEM LOOKS TO AFFECT THE CWA ON FRIDAY THROUGH SATURDAY
AS SERIES OF SFC/LL BOUNDARIES APPROACH AND/OR PASS...AHEAD OF UL
TROUGH. ISOLATED SHWRS/STORMS EXPECTED FRIDAY/FRIDAY NIGHT...WITH
PCPN BECOMING MORE NUMEROUS SATURDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
NASHVILLE      59  77  53  64 /  50  40  40  20
CLARKSVILLE    57  72  51  62 /  50  40  40  20
CROSSVILLE     59  71  52  60 /  80  30  30  40
COLUMBIA       59  78  53  66 /  50  40  30  20
LAWRENCEBURG   59  77  53  68 /  50  30  30  20
WAVERLY        58  75  52  64 /  50  40  40  20

&&

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

07

Hazardous weather outlook, Apr 24, 12:12 PM CDT, 5 hours 13 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
1212 PM CDT SAT APR 24 2010

TNZ005>011-022>034-056>066-075-077>080-093>095-251715-
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-
1212 PM CDT SAT APR 24 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS A HIGH RISK OF SEVERE THUNDERSTORMS...INCLUDING ISOLATED
TORNADOES...THIS AFTERNOON AND EVENING. ADDITIONALLY...STORMS WILL
PRODUCE LARGE HAIL AND DAMAGING WIND.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

A SIGNIFICANT SEVERE WEATHER EVENT IS EXPECTED. SPOTTER REPORTS
WILL BE NEEDED.

SPOTTER THUNDERSTORM REPORTING CRITERIA...
TORNADO
FUNNEL CLOUD
FLOODING
HAIL >= 1/2 INCH
WINDS > 50 MPH (MEASURED)
STRUCTURAL DAMAGE
TREES OR POWER LINES DOWN

07

In the hours before

Local storm report, Apr 24, 4:54 PM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NASHVILLE TN
454 PM CDT SAT APR 24 2010

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

0950 AM     TSTM WND DMG     4 NE PULASKI            35.24N 86.98W
04/24/2010                   GILES              TN   TRAINED SPOTTER

            TIN ROOF PEELED OFF BARN...LARGE TREE LIMBS BLOW DOWN.

0953 AM     TSTM WND DMG     PULASKI                 35.20N 87.03W
04/24/2010                   GILES              TN   TRAINED SPOTTER

            TIN PEELED OFF A ROOF...WINDS ESTIMATED AROUND 50 MPH.

1050 AM     LIGHTNING        5 S FRANKLIN            35.86N 86.84W
04/24/2010                   WILLIAMSON         TN   EMERGENCY MNGR

            6 INCH HOLE IN ROOF OF A HOME.

0350 PM     TSTM WND DMG     10 SW DOVER             36.38N 87.97W
04/24/2010                   STEWART            TN   LAW ENFORCEMENT

            STEWART COUNTY SHERIFFS OFFICE REPORTED MULTIPLE POWER
            LINES DOWN ALONG STATE HIGHWAY 232.

0452 PM     HAIL             2 N CLARKSVILLE         36.59N 87.35W
04/24/2010  E1.00 INCH       MONTGOMERY         TN   AMATEUR RADIO

&&

JWRIGHT

Local storm report, Apr 24, 5:06 PM CDT, 19 minutes before

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Local storm report, Apr 24, 5:09 PM CDT, 16 minutes before

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Local storm report, Apr 24, 5:11 PM CDT, 14 minutes before

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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Local storm report, Apr 24, 5:12 PM CDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NASHVILLE TN
512 PM CDT SAT APR 24 2010

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

0950 AM     TSTM WND DMG     4 NE PULASKI            35.24N 86.98W
04/24/2010                   GILES              TN   TRAINED SPOTTER

            TIN ROOF PEELED OFF BARN...LARGE TREE LIMBS BLOW DOWN.

0953 AM     TSTM WND DMG     PULASKI                 35.20N 87.03W
04/24/2010                   GILES              TN   TRAINED SPOTTER

            TIN PEELED OFF A ROOF...WINDS ESTIMATED AROUND 50 MPH.

1050 AM     LIGHTNING        5 S FRANKLIN            35.86N 86.84W
04/24/2010                   WILLIAMSON         TN   EMERGENCY MNGR

            6 INCH HOLE IN ROOF OF A HOME.

0350 PM     TSTM WND DMG     10 SW DOVER             36.38N 87.97W
04/24/2010                   STEWART            TN   LAW ENFORCEMENT

            STEWART COUNTY SHERIFFS OFFICE REPORTED MULTIPLE POWER
            LINES DOWN ALONG STATE HIGHWAY 232.

0452 PM     HAIL             2 N CLARKSVILLE         36.59N 87.35W
04/24/2010  E1.00 INCH       MONTGOMERY         TN   AMATEUR RADIO

0503 PM     TSTM WND GST     GAINESBORO              36.65N 87.17W
04/24/2010  E70.00 MPH       MONTGOMERY         TN   TRAINED SPOTTER

            POWER OUTAGES

0505 PM     TSTM WND DMG     CAMDEN                  36.06N 88.10W
04/24/2010                   BENTON             TN   LAW ENFORCEMENT

            STEWART COUNTY SHERIFFS OFFICE REPORTED MULTIPLE TREES
            WERE DOWNED ACROSS COUNTY ROADS ACROSS THE COUNTY.

&&

JWRIGHT

Local storm report, Apr 24, 5:18 PM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NASHVILLE TN
518 PM CDT SAT APR 24 2010

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

0950 AM     TSTM WND DMG     4 NE PULASKI            35.24N 86.98W
04/24/2010                   GILES              TN   TRAINED SPOTTER

            TIN ROOF PEELED OFF BARN...LARGE TREE LIMBS BLOW DOWN.

0953 AM     TSTM WND DMG     PULASKI                 35.20N 87.03W
04/24/2010                   GILES              TN   TRAINED SPOTTER

            TIN PEELED OFF A ROOF...WINDS ESTIMATED AROUND 50 MPH.

1050 AM     LIGHTNING        5 S FRANKLIN            35.86N 86.84W
04/24/2010                   WILLIAMSON         TN   EMERGENCY MNGR

            6 INCH HOLE IN ROOF OF A HOME.

0350 PM     TSTM WND DMG     10 SW DOVER             36.38N 87.97W
04/24/2010                   STEWART            TN   LAW ENFORCEMENT

            STEWART COUNTY SHERIFFS OFFICE REPORTED MULTIPLE POWER
            LINES DOWN ALONG STATE HIGHWAY 232.

0353 PM     TSTM WND DMG     DOVER                   36.48N 87.84W
04/24/2010                   STEWART            TN   AMATEUR RADIO

            AMATEUR RADIO REPORTED THAT MULTIPLE TREES WERE DOWNED
            ACROSS THE COUNTY.

0452 PM     HAIL             2 N CLARKSVILLE         36.59N 87.35W
04/24/2010  E1.00 INCH       MONTGOMERY         TN   AMATEUR RADIO

0503 PM     TSTM WND GST     GAINESBORO              36.65N 87.17W
04/24/2010  E70.00 MPH       MONTGOMERY         TN   TRAINED SPOTTER

            POWER OUTAGES

0505 PM     TSTM WND DMG     CAMDEN                  36.06N 88.10W
04/24/2010                   BENTON             TN   LAW ENFORCEMENT

            STEWART COUNTY SHERIFFS OFFICE REPORTED MULTIPLE TREES
            WERE DOWNED ACROSS COUNTY ROADS ACROSS THE COUNTY.

&&

JWRIGHT

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 24, 9:41 AM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Marshall, Maury	49 min
Apr 24, 10:30 AM CDT	Severe Thunderstorm Warning	OHX	Benton, Humphreys, Perry	60 min
Apr 24, 12:52 PM CDT	Areal Flood Advisory	OHX	Davidson, Maury, Williamson	3 hr
Apr 24, 1:20 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Rutherford, Williamson, Wilson	25 min
Apr 24, 3:30 PM CDT	Severe Thunderstorm Warning	OHX	Benton, Houston, Humphreys, Montgomery, Stewart	60 min
Apr 24, 4:22 PM CDT	Tornado Warning	OHX	Benton, Dickson, Houston, Humphreys, Montgomery	38 min
Apr 24, 4:25 PM CDT	Severe Thunderstorm Warning	OHX	Houston, Humphreys, Montgomery, Robertson, Stewart	50 min
Apr 24, 4:28 PM CDT	Tornado Warning	OHX	Benton, Dickson, Hickman, Humphreys, Perry	32 min
Apr 24, 4:54 PM CDT	Tornado Warning	OHX	Benton, Dickson, Hickman, Humphreys, Perry	36 min
Apr 24, 4:56 PM CDT	Tornado Warning	OHX	Montgomery, Robertson	34 min
Apr 24, 5:03 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Houston, Humphreys, Montgomery	27 min
Apr 24, 5:48 PM CDT	Tornado Warning	OHX	Hickman, Maury, Perry	27 min
Apr 24, 5:52 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Hickman, Humphreys, Williamson	23 min
Apr 24, 6:34 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Robertson, Sumner, Williamson	26 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2010 Every severe thunderstorm warning in 2010

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.