Alert archive / Tennessee / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 117, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at Jul 27, 2014, 5:42 PM CDT for Fentress County, Tennessee. It was in force for 33 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
- Jul 27, 2014, 5:42 PM CDT (22:42 UTC)
- Expired
- Jul 27, 2014, 6:15 PM CDT
- In force
- 33 min
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
County Fentress County, TN
The radar
The Knoxville radar (KMRX), 139 km from the middle of the area, began a volume at 22:45 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 27, 12:00 PM CDT | Tornado Watch | SPC | 11 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 10.7 hours before the alert went out and 152 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
- 1964 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 768 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 2.3
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 Jul 27, 1:41 PM CDT, 4 hours 1 minute earlier.
Area forecast discussion, Jul 27, 1:41 PM CDT, 4 hours 1 minute before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NASHVILLE TN 141 PM CDT SUN JUL 27 2014 .DISCUSSION... TORNADO WATCH UNTIL 7 PM CDT UPPER CUMBERLAND AND A FEW COUNTIES IN NORTHEAST MIDDLE TENNESSEE NEAR THE KENTUCKY BORDER. CLOSEST CONVECTION AT THIS TIME IS LAKE CUMBERLAND IN EAST CENTRAL KENTUCKY WITH MORE CONVECTION OVER EASTERN KENTUCKY. STILL BELIEVE WEST AND MIDDLE TENNESSEE REMAIN CAPPED OFF WITH TEMPS AT 700 MBARS CURRENTLY AT +12 DEGREES CELSIUS CONTINUES TO HOLD DOWN DEVELOPMENT...WITH COOLER TEMPS THROUGH THE MID LEVELS ACROSS EASTERN KENTUCKY WHERE CONVECTION IS ON-GOING. THINK WE ARE GOING TO HAVE TO WAIT ON COOL FRONT TO OUR NORTH TO GIVE A KICK AND CRANK STORMS UP ALONG KENTUCKY BORDER BACK THIS WAY IN THE 22Z-24Z TIME FRAME. STORMS SHOULD WORK DOWN ALONG INTERSTATE 40 AND INTO THE NASHVILLE AREA BY 02Z...AND THEN WORK ON DOWN THROUGH MIDDLE TENNESSEE AS WE GO TOWARD MIDNIGHT. A FEW STORMS COULD PRODUCE DAMAGING WINDS AND LARGE HAIL...BUT AN ISOLATED TORNADO CAN NOT BE RULED OUT IN WATCH AREA. COOL FRONT WILL BE SOUTH OF MIDDLE TENNESSEE MONDAY MORNING WITH SURFACE HIGH BUILDING INTO THE AREA. UPPER FLOW WILL REMAIN NORTHWESTERLY DOWN THROUGH MIDDLE TENNESSEE MUCH OF THE WORK WEEK AS UPPER RIDGE BUILDS THROUGH THE WESTERN U.S. THIS WILL KEEP TEMPS BELOW SEASONAL NORMALS HERE IN MIDDLE TENNESSEE WITH LITTLE CHANCE OF RAIN UNTIL THE WEEKEND. && .PRELIMINARY POINT TEMPS/POPS... NASHVILLE 68 84 61 81 / 40 10 05 0 CLARKSVILLE 64 82 56 82 / 30 10 05 0 CROSSVILLE 66 76 57 75 / 40 10 05 0 COLUMBIA 69 86 61 82 / 40 10 05 0 LAWRENCEBURG 69 86 61 82 / 30 10 05 0 WAVERLY 65 84 58 83 / 40 10 05 0 && .OHX WATCHES/WARNINGS/ADVISORIES... NONE. && BOYD 01
Hazardous weather outlook, Jul 27, 7:41 AM CDT, 10 hours 1 minute before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NASHVILLE TN 741 AM CDT SUN JUL 27 2014 TNZ005>011-023>034-056>066-075-077>080-093>095-281000- STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-PICKETT-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- 741 AM CDT SUN JUL 27 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE. .DAY ONE...TODAY AND TONIGHT. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR ALL OF MIDDLE TENNESSEE THIS AFTERNOON AND TONIGHT AS A COLD FRONT PASSES THROUGH THE REGION. THE THREAT IS GREATEST IN THE NORTHEAST COUNTIES. THE MOST LIKELY TIME FOR STRONG TO SEVERE STORMS WILL BE LATE THIS AFTERNOON IN THE NORTHWEST COUNTIES...UNTIL AROUND MIDNIGHT IN THE FAR SOUTHEAST COUNTIES. IT WILL ALSO BE A PARTICULARLY HOT AND HUMID DAY. THE AFTERNOON HEAT INDEX WILL BE BETWEEN 100 AND 102 DEGREES ACROSS ALL AREAS EXCEPT FOR THE PLATEAU. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER CALL TO ACTION STATEMENT... REPORTS FROM TRAINED WEATHER SPOTTERS MAY BE NEEDED THIS AFTERNOON AND TONIGHT. SPOTTER THUNDERSTORM REPORTING CRITERIA... TORNADO FUNNEL CLOUD FLOODING HAIL >= 1/2 INCH WINDS > 50 MPH (MEASURED) STRUCTURAL DAMAGE TREES OR POWER LINES DOWN 49
In the hours before
Local storm report, Jul 27, 5:24 PM CDT, 18 minutes before
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</html>Local storm report, Jul 27, 5:41 PM CDT, 1 minute before
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<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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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 |
|---|---|---|---|---|
| Jul 27, 4:33 PM CDT | Severe Thunderstorm Warning | OHX | Pickett | 27 min |
| Jul 27, 4:47 PM CDT | Severe Thunderstorm Warning | OHX | Clay, Overton, Pickett | 28 min |
| Jul 27, 5:12 PM CDT | Severe Thunderstorm Warning | OHX | Clay, Fentress, Overton, Pickett | 33 min |
| Jul 27, 5:32 PM CDT | Tornado Warning | OHX | Fentress | 28 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2014Every severe thunderstorm warning in 2014
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.