Alert archive / Tennessee / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 300, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at Sep 6, 2009, 5:24 PM CDT for Cheatham County, Davidson County, Tennessee. It was in force for 36 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
- Sep 6, 2009, 5:24 PM CDT (22:24 UTC)
- Expired
- Sep 6, 2009, 6:00 PM CDT
- In force
- 36 min
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
Counties Cheatham County, TN, Davidson County, TN
The radar
The Nashville radar (KOHX), 33 km from the middle of the area, began a volume at 22:24 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, 10.4 hours before the alert went out and 31 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.
- Mixed-layer CAPE
- 785 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 726 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Sep 6, 3:18 PM CDT, 2 hours 6 minutes earlier.
Area forecast discussion, Sep 6, 3:18 PM CDT, 2 hours 6 minutes before
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</html>Hazardous weather outlook, Sep 6, 12:14 PM CDT, 5 hours 10 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NASHVILLE TN 1214 PM CDT SUN SEP 6 2009 TNZ005>011-022>034-056>066-075-077>080-093>095-070115- 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- 1214 PM CDT SUN SEP 6 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE . .DAY ONE...TONIGHT... SCATTERED THUNDERSTORMS WILL AFFECT MIDDLE TENNESSEE THROUGH THE AFTERNOON HOURS. DANGEROUS CLOUD TO GROUND LIGHTNING WILL ACCOMPANY ALL THE STORMS...AND A FEW STORMS COULD PRODUCE STRONG WINDS...HAIL...AND LOCALLY VERY HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... DUE TO THE BRIEF AND SCATTERED NATURE OF POSSIBLE SEVERE WEATHER... SPOTTER ACTIVATION IS NOT ANTICIPATED.
In the hours before
Special weather statement, Sep 6, 11:39 AM CDT, 5 hours 45 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NASHVILLE TN 1139 AM CDT SUN SEP 6 2009 TNZ007-008-026-027-061745- ROBERTSON-SUMNER-CHEATHAM-DAVIDSON- INCLUDING THE CITIES OF...SPRINGFIELD...GALLATIN...ASHLAND CITY... KINGSTON SPRINGS...NASHVILLE 1139 AM CDT SUN SEP 6 2009 ...STRONG STORM IN ROBERTSON COUNTY... AT 1135 AM A STRONG STORM WAS INDICATED BY DOPPLER WEATHER RADAR FROM SPRINGFIELD TO CROSSPLAINS IN ROBERTSON COUNTY. THIS STORM IS CAPABLE OF PRODUCING PEA SIZE HAIL AND WIND GUSTS TO 35 MPH. RAINFALL RATE OF 1 INCH PER HOUR BOYD
Local storm report, Sep 6, 12:04 PM CDT, 5 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1204 PM CDT SUN SEP 06 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1155 AM TSTM WND DMG 5 NE SPRINGFIELD 36.55N 86.82W
09/06/2009 ROBERTSON TN LAW ENFORCEMENT
LARGE TREE LIMBS BLOWN DOWN BLOCKING ROADWAY.
&&
TJSpecial weather statement, Sep 6, 12:08 PM CDT, 5 hours 16 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NASHVILLE TN 1208 PM CDT SUN SEP 6 2009 TNZ005>011-022>034-056>066-075-077>080-093>095-061815- 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- INCLUDING THE CITIES OF...DOVER...CLARKSVILLE...SPRINGFIELD... GALLATIN...LAFAYETTE...CELINA...BYRDSTOWN...CAMDEN...ERIN... WAVERLY...DICKSON...ASHLAND CITY...KINGSTON SPRINGS...NASHVILLE... LEBANON...MOUNT JULIET...HARTSVILLE...CARTHAGE...GAINESBORO... COOKEVILLE...LIVINGSTON...JAMESTOWN...ALLARDT...LINDEN... LOBELVILLE...CENTERVILLE...HOHENWALD...FRANKLIN...BRENTWOOD... COLUMBIA...LEWISBURG...MURFREESBORO...WOODBURY...SMITHVILLE... SPARTA...CROSSVILLE...FAIRFIELD GLADE...SHELBYVILLE...TULLAHOMA... MANCHESTER...MCMINNVILLE...TRACY CITY...ALTAMONT...COALMONT... SPENCER...WAYNESBORO...LAWRENCEBURG...PULASKI 1208 PM CDT SUN SEP 6 2009 ...SHOWERS AND THUNDERSTORMS BEGINNING TO FIRE ACROSS NORTHERN MIDDLE TENNESSEE...A FEW COULD BECOME SEVERE DURING THE AFTERNOON... SHOWERS AND A FEW THUNDERSTORMS DEVELOPED QUICKLY ACROSS NORTHERN MIDDLE TENNESSEE WITH THE STRONGER STORMS CURRENTLY IN ROBERTSON COUNTY...WHERE LARGE TREE LIMBS WERE REPORTED DOWN IN SPRINGFIELD. THE SHOWERS AND STORMS ARE MOVING SLOWLY TOWARD THE NORTHEAST AT ABOUT 5 MPH. BOYD
Special weather statement, Sep 6, 1:01 PM CDT, 4 hours 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NASHVILLE TN 101 PM CDT SUN SEP 6 2009 TNZ005-061915- STEWART- INCLUDING THE CITY OF...DOVER 101 PM CDT SUN SEP 6 2009 ...STORMS MOVING TOWARD THE THE LAND BETWEEN THE LAKES AREA... STRONG THUNDERSTORMS...SOME PRODUCING LOCALLY HEAVY RAINFALL ARE MOVING TOWARD THE LAND BETWEEN THE LAKES AREA. AT 1 PM CDT...THE STORMS WERE ABOUT 10 MILES WEST OF THE WESTERN EDGE OF STEWART COUNTY MOVING EAST AT ABOUT 5 TO 10 MPH. BOATERS...FISHERMAN AND CAMPERS SHOULD KEEP AN EYE TO THE SKY AND SEEK SHELTER WHEN THE THUNDERSTORMS APPROACH. RAINFALL RATES HAVE BEEN IN EXCESS OF 2 INCHES PER HOUR IN A FEW OF THE STORMS. IN ADDITION TO GUSTY WINDS...SMALL HAIL AND LOCALLY HEAVY RAINFALL...FREQUENT CLOUD TO GROUND LIGHTNING STRIKES ARE LIKELY WITH THESE STORMS. BOYD
Local storm report, Sep 6, 2:56 PM CDT, 2 hours 28 minutes before
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</html>Local storm report, Sep 6, 2:58 PM CDT, 2 hours 26 minutes before
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</html>The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 11:41 AM CDT | Severe Thunderstorm Warning | OHX | Robertson | 34 min |
| Sep 6, 1:58 PM CDT | Severe Thunderstorm Warning | OHX | Stewart | 47 min |
| Sep 6, 2:28 PM CDT | Severe Thunderstorm Warning | OHX | Houston, Stewart | 62 min |
| Sep 6, 3:04 PM CDT | Severe Thunderstorm Warning | OHX | Houston, Montgomery, Stewart | 56 min |
| Sep 6, 3:37 PM CDT | Severe Thunderstorm Warning | OHX | Dickson, Houston, Montgomery | 53 min |
| Sep 6, 5:33 PM CDT | Tornado Warning | OHX | Cheatham, Davidson, Robertson | 27 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2009Every 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.