Alert archive / Tennessee / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 170, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at Aug 2, 2008, 5:44 PM CDT for Lawrence County, Wayne County, Tennessee. It was in force for 31 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 2, 2008, 5:44 PM CDT (22:44 UTC)
- Expired
- Aug 2, 2008, 6:15 PM CDT
- In force
- 31 min
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
Counties Lawrence County, TN, Wayne County, TN
The radar
The Northeast Alabama radar (KHTX), 139 km from the middle of the area, began a volume at 22:44 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 2, 5:55 PM CDT | HAIL 1.25 | Iron City, TN | HALF DOLLAR SIZE HAIL AT FIRE HALL IN IRON CITY |
| Aug 2, 5:56 PM CDT | HAIL 1 | 2 Nnw Iron City, TN | NICKEL TO QUARTER SIZE HAIL AT HOLLY CREEK IN WAYNE COUNTY |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 11 minutes after it went out.
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, 10.7 hours before the alert went out and 147 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
- 2260 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 1011 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 6.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KOHX 022244 SVROHX TNC099-181-022315- /O.NEW.KOHX.SV.W.0170.080802T2244Z-080802T2315Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NASHVILLE TN 544 PM CDT SAT AUG 2 2008 THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN LAWRENCE COUNTY IN TENNESSEE... SOUTHEASTERN WAYNE COUNTY IN TENNESSEE... * UNTIL 615 PM CDT * AT 539 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL. THIS STORM WAS LOCATED NEAR IRON CITY...OR 18 MILES SOUTHWEST OF LAWRENCEBURG...AND MOVING SOUTH AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... IRON CITY BY 600 PM CDT... ST. JOSEPH BY 605 PM CDT... IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. LAT...LON 3513 8767 3514 8751 3501 8746 3500 8768 TIME...MOT...LOC 2244Z 352DEG 9KT 3507 8759 $$ 13
1 follow-up statement
000 WWUS54 KOHX 022303 SVSOHX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NASHVILLE TN 603 PM CDT SAT AUG 2 2008 TNC099-181-022315- /O.CON.KOHX.SV.W.0170.000000T0000Z-080802T2315Z/ WAYNE TN-LAWRENCE TN- 602 PM CDT SAT AUG 2 2008 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR SOUTHWESTERN LAWRENCE AND SOUTHEASTERN WAYNE COUNTIES... AT 556 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR IRON CITY...OR 20 MILES SOUTHWEST OF LAWRENCEBURG...MOVING SOUTH AT 5 MPH. A STORM SPOTTER REPORTED QUARTER SIZE HAIL AT HOLLY CREEK. THE SEVERE THUNDERSTORM WILL BE NEAR... IRON CITY AND ST. JOSEPH BY 610 PM CDT... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. LAT...LON 3513 8767 3514 8751 3501 8746 3500 8768 TIME...MOT...LOC 2302Z 354DEG 8KT 3504 8759 $$ 13
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 Aug 2, 3:20 PM CDT, 2 hours 24 minutes earlier.
Area forecast discussion, Aug 2, 3:20 PM CDT, 2 hours 24 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NASHVILLE TN 320 PM CDT SAT AUG 2 2008 .DISCUSSION...SURFACE MAP AT 19Z SHOWS A WEAK FRONTAL BOUNDARY HAVING JUST MOVED THROUGH MIDDLE TENNESSEE, WITH A RIDGE OF HIGH PRESSURE OFF TO THE WEST, AND NORTHWEST WINDS SPREADING INTO THE MID STATE. DESPITE THIS, TEMPERATURES HAVE WARMED INTO THE LOWER TO MID 90S MOST AREAS, ALTHOUGH DEW POINTS ARE STARTING TO COME DOWN AS THE DRIER AIR FILTERS INTO THE MID STATE. BERMUDA HIGH WILL RE-ESTABLISH ITSELF AS THE FRONT TO OUR SOUTH DISSOLVES. AT THE SAME TIME, UPPER HIGH WILL BUILD OVER THE SOUTHERN PLAINS, PRODUCING A PERSISTENT NORTHWEST FLOW ALOFT FOR THE NEXT SEVERAL DAYS. ATMOSPHERE WILL CONTINUE TO DRY OUT, ALTHOUGH TEMPERATURES WILL REMAIN SLIGHTLY ABOVE NORMAL FOR THE NEXT FEW DAYS. THE NEXT SURFACE FRONT WILL MOVE INTO MIDDLE TENNESSEE WEDNESDAY, BRINGING OUR NEXT CHANCE OF CONVECTION. A SECOND FRONT WILL SWING THROUGH THURSDAY NIGHT ALONG WITH A 500 MB SHORTWAVE, THEREBY CONTINUING OUR CHANCE OF PRECIPITATION. THE SPC DOES NOT HAVE ANY RISK AREA OUTLINED FOR MIDDLE TENNESSEE THROUGH THE DAY 4-8 EXTENDED OUTLOOK. && .PRELIMINARY POINT TEMPS/POPS... NASHVILLE 70 93 69 94 / 10 0 10 0 CLARKSVILLE 68 91 65 95 / 10 0 0 10 CROSSVILLE 65 89 65 90 / 10 10 10 10 COLUMBIA 71 94 69 95 / 10 0 10 0 LAWRENCEBURG 71 96 69 96 / 10 0 10 0 WAVERLY 70 93 67 95 / 10 0 10 10 && .OHX WATCHES/WARNINGS/ADVISORIES...HEAT ADVISORY UNTIL 6 PM CDT THIS AFTERNOON FOR TNZ005-006- 022>026-056>061-093>095. && ROSE
Hazardous weather outlook, Aug 2, 5:15 AM CDT, 12 hours 29 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NASHVILLE TN 515 AM CDT SAT AUG 2 2008 TNZ005>011-022>034-056>066-075-077>080-093>095-031015- 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- 515 AM CDT SAT AUG 2 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE. .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS ARE EXPECTED TODAY. WARM AND MOIST AIR COULD GENERATE A FEW STRONG TO SEVERE THUNDERSTORMS LATE IN THE DAY...WITH WIND GUSTS TO 60 MPH POSSIBLE. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY VERY WARM TEMPERATURES ARE EXPECTED THROUGH THE MIDDLE OF NEXT WEEK. HIGH TEMPERATURES ARE EXPECTED TO REACH THE MID AND UPPER 90S WEST OF THE PLATEAU...WITH AFTERNOON HEAT INDICES EXCEEDING THE 100 DEGREE MARK. HEAT ADVISORIES MAY BE REQUIRED. .SPOTTER INFORMATION STATEMENT... DUE TO THE BRIEF AND ISOLATED NATURE OF POSSIBLE SEVERE WEATHER TODAY...SPOTTER ACTIVATION IS NOT ANTICIPATED. 04
The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 12:26 PM CDT | Heat Advisory | OHX | Benton, Cheatham, Dickson, Giles, Hickman, Houston and 10 more | 6 hr |
| Aug 2, 6:15 PM CDT | Flash Flood Warning | OHX | Lawrence, Wayne | 2 hr |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2008Every severe thunderstorm warning in 2008
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.