Alert archive / Tennessee / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 430, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Oct 30, 2009, 12:01 PM CDT for Henry County, Weakley County, Tennessee. It was in force for 29 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
- Oct 30, 2009, 12:01 PM CDT (17:01 UTC)
- Expired
- Oct 30, 2009, 12:30 PM CDT
- In force
- 29 min
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
Counties Henry County, TN, Weakley County, TN
The radar
The Paducah radar (KPAH), 79 km from the middle of the area, began a volume at 17:05 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, 5.0 hours before the alert went out and 168 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 849 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 425 m²/s²
- 0-3 km storm-relative helicity
- 450 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KMEG 301701
SVRMEG
TNC079-183-301730-
/O.NEW.KMEG.SV.W.0430.091030T1701Z-091030T1730Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
1201 PM CDT FRI OCT 30 2009
THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN HENRY COUNTY IN NORTHWEST TENNESSEE...
NORTHEASTERN WEAKLEY COUNTY IN NORTHWEST TENNESSEE...
* UNTIL 1230 PM CDT
* AT 1201 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.
THIS STORM WAS LOCATED NEAR COTTAGE GROVE...OR 13 MILES NORTH OF
MCKENZIE...AND MOVING NORTHEAST AT 60 MPH.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RURAL AREAS
OF NORTHEASTERN WEAKLEY AND NORTHWESTERN HENRY COUNTIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5.
&&
LAT...LON 3649 8829 3619 8850 3627 8870 3651 8857
3650 8829
TIME...MOT...LOC 1701Z 207DEG 51KT 3632 8854
$$1 follow-up statement
000
WWUS54 KMEG 301729
SVSMEG
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
1229 PM CDT FRI OCT 30 2009
TNC079-183-301739-
/O.EXP.KMEG.SV.W.0430.000000T0000Z-091030T1730Z/
HENRY TN-WEAKLEY TN-
1229 PM CDT FRI OCT 30 2009
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WEAKLEY AND
NORTHWESTERN HENRY COUNTIES WILL EXPIRE AT 1230 PM CDT...
AT 1229 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA
AND WEAKENED. THEREFORE...THE SEVERE THUNDERSTORM WARNING WILL BE
ALLOWED TO EXPIRE.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PURYEAR...
MATHENY GROVE...ORE SPRINGS...MILL CREEK...JONES MILL...FOUNDRY
HILL...OSAGE AND COMO.
.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5.
LAT...LON 3649 8829 3619 8850 3627 8870 3651 8857
3650 8829
TIME...MOT...LOC 1729Z 207DEG 51KT 3667 8831
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 29, 10:16 PM CDT | River Flood Warning | MEG | Crockett, Dyer, Lauderdale | 36 hr |
| Oct 30, 2:19 AM CDT | Flash Flood Warning | MEG | Shelby | 12 hr |
| Oct 30, 2:36 AM CDT | Flash Flood Warning | MEG | Dyer, Lake, Lauderdale, Tipton | 12 hr |
| Oct 30, 3:36 AM CDT | Severe Thunderstorm Warning | MEG | Lake, Obion | 37 min |
| Oct 30, 11:01 AM CDT | River Flood Warning | MEG | Dyer, Lake, Lauderdale | 5 days |
| Oct 30, 2:15 PM CDT | Flash Flood Warning | MEG | Decatur | 2 hr |
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.