Alert archive / Tennessee / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 310, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at Sep 8, 2009, 1:02 PM CDT for Montgomery County, Tennessee. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 8, 2009, 1:02 PM CDT (18:02 UTC)
- Expired
- Sep 8, 2009, 1:30 PM CDT
- In force
- 28 min
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
County Montgomery County, TN
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 6.0 hours before the alert went out and 84 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
- 1139 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 871 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KOHX 081802
SVROHX
TNC125-081830-
/O.NEW.KOHX.SV.W.0310.090908T1802Z-090908T1830Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
102 PM CDT TUE SEP 8 2009
THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MONTGOMERY COUNTY IN MIDDLE TENNESSEE...
* UNTIL 130 PM CDT
* AT 102 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR CLARKSVILLE...OR
NEAR FORT CAMPBELL NORTH...AND MOVING SOUTHEAST AT 10 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
CLARKSVILLE BY 130 PM CDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 3657 8718 3639 8736 3657 8760 3666 8751
3665 8735
TIME...MOT...LOC 1802Z 308DEG 7KT 3658 8744
$$
ROSE1 follow-up statement
000
WWUS54 KOHX 081821
SVSOHX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
121 PM CDT TUE SEP 8 2009
TNC125-081830-
/O.CON.KOHX.SV.W.0310.000000T0000Z-090908T1830Z/
MONTGOMERY TN-
121 PM CDT TUE SEP 8 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM CDT
FOR MONTGOMERY COUNTY...
AT 120 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR
CLARKSVILLE...MOVING SOUTHEAST AT 10 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
CLARKSVILLE BY 130 PM CDT...
LAT...LON 3657 8718 3639 8736 3657 8760 3666 8751
3665 8735
TIME...MOT...LOC 1821Z 308DEG 7KT 3656 8740
$$
ROSEThe office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 10:15 PM CDT | Dense Fog Advisory | OHX | Bedford, Cannon, Clay, Coffee, Cumberland, DeKalb and 14 more | 11 hr |
| Sep 7, 10:16 PM CDT | Areal Flood Advisory | OHX | Giles | 3 hr |
| Sep 7, 10:49 PM CDT | Areal Flood Advisory | OHX | Giles, Lawrence | 3 hr |
| Sep 8, 12:56 PM CDT | Severe Thunderstorm Warning | OHX | Cheatham, Montgomery, Robertson | 34 min |
| Sep 8, 1:46 PM CDT | Severe Thunderstorm Warning | OHX | Robertson, Sumner | 29 min |
| Sep 8, 2:33 PM CDT | Severe Thunderstorm Warning | OHX | Bedford | 11 min |
| Sep 8, 2:50 PM CDT | Severe Thunderstorm Warning | OHX | Giles | 10 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.