Alert archive / Tennessee / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 86, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at Mar 17, 2012, 2:22 PM CDT for 5 counties in Tennessee. It was in force for 38 min. 1 report 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
- Mar 17, 2012, 2:22 PM CDT (19:22 UTC)
- Expired
- Mar 17, 2012, 3:00 PM CDT
- In force
- 38 min
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
Counties Cheatham County, TN, Davidson County, TN, Robertson County, TN, Sumner County, TN, Wilson County, TN
The radar
The Nashville radar (KOHX), 21 km from the middle of the area, began a volume at 19:26 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 |
|---|---|---|---|
| Mar 17, 2:25 PM CDT | HAIL 0.88 | 10 Ene Ashland City, TN | REPORTED ON I-24 IN JOELTON |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 7.4 hours before the alert went out and 32 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
- 622 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 981 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
099 WUUS54 KOHX 171922 SVROHX TNC021-037-147-165-189-172000- /O.NEW.KOHX.SV.W.0086.120317T1922Z-120317T2000Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NASHVILLE TN 222 PM CDT SAT MAR 17 2012 THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN ROBERTSON COUNTY IN MIDDLE TENNESSEE... WESTERN SUMNER COUNTY IN MIDDLE TENNESSEE... NORTHWESTERN WILSON COUNTY IN MIDDLE TENNESSEE... NORTHEASTERN CHEATHAM COUNTY IN MIDDLE TENNESSEE... NORTHERN DAVIDSON COUNTY IN MIDDLE TENNESSEE... * UNTIL 300 PM CDT * AT 221 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THE STORM WAS NEAR RIDGETOP... MOVING NORTHEAST AT 15 MPH. * LOCATIONS IMPACTED INCLUDE... GREENBRIER... GOODLETTSVILLE... MILLERSVILLE... HENDERSONVILLE... WHITE HOUSE... GALLATIN... PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1 8 7 7 6 3 3 6 7 7 2. DO NOT STAY OUTDOORS IF YOU ARE IN THE PATH OF SEVERE THUNDERSTORMS. && LAT...LON 3663 8662 3624 8631 3618 8686 3636 8698 TIME...MOT...LOC 1922Z 241DEG 15KT 3633 8682 $$ SHAMBURGER
1 follow-up statement
773 WWUS54 KOHX 171938 SVSOHX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NASHVILLE TN 238 PM CDT SAT MAR 17 2012 TNC021-037-147-165-189-172000- /O.CON.KOHX.SV.W.0086.000000T0000Z-120317T2000Z/ ROBERTSON TN-SUMNER TN-WILSON TN-CHEATHAM TN-DAVIDSON TN- 238 PM CDT SAT MAR 17 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN DAVIDSON...NORTHEASTERN CHEATHAM...NORTHWESTERN WILSON...WESTERN SUMNER AND SOUTHEASTERN ROBERTSON COUNTIES UNTIL 300 PM CDT... AT 235 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR GOODLETTSVILLE...OR 11 MILES NORTH OF NASHVILLE...MOVING EAST AT 20 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... MILLERSVILLE AROUND 245 PM CDT. HENDERSONVILLE AROUND 250 PM CDT. GREEN HILL AROUND 255 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN NASHVILLE. && LAT...LON 3663 8662 3624 8631 3618 8686 3636 8698 TIME...MOT...LOC 1938Z 248DEG 17KT 3633 8671 $$ SHAMBURGER
The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 1:08 PM CDT | Special Weather Statement | OHX | Maury | 67 min |
| Mar 17, 1:43 PM CDT | Special Weather Statement | OHX | Cheatham | 32 min |
| Mar 17, 1:48 PM CDT | Special Weather Statement | OHX | Williamson | 27 min |
| Mar 17, 1:52 PM CDT | Severe Thunderstorm Warning | OHX | Cheatham, Davidson, Williamson | 38 min |
| Mar 17, 1:58 PM CDT | Special Weather Statement | OHX | Rutherford | 47 min |
| Mar 17, 2:03 PM CDT | Severe Thunderstorm Warning | OHX | Cheatham, Davidson, Robertson | 27 min |
| Mar 17, 3:04 PM CDT | Special Weather Statement | OHX | Sumner, Trousdale | 41 min |
| Mar 17, 3:34 PM CDT | Special Weather Statement | OHX | Cheatham | 56 min |
| Mar 17, 3:35 PM CDT | Special Weather Statement | OHX | Sumner | 25 min |
| Mar 17, 3:38 PM CDT | Special Weather Statement | OHX | Bedford | 37 min |
| Mar 17, 3:52 PM CDT | Areal Flood Advisory | OHX | Williamson | 113 min |
| Mar 17, 4:11 PM CDT | Special Weather Statement | OHX | Putnam | 34 min |
| Mar 17, 4:18 PM CDT | Special Weather Statement | OHX | Coffee | 27 min |
| Mar 17, 6:53 PM CDT | Special Weather Statement | OHX | Wilson | 22 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2012Every severe thunderstorm warning in 2012
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.