Alert archive / Louisiana / Tornado Warnings in 2009
Tornado Warning 49, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at May 10, 2009, 3:43 PM CDT for 4 parishes in Louisiana. It was in force for 47 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
- May 10, 2009, 3:43 PM CDT (20:43 UTC)
- Expired
- May 10, 2009, 4:30 PM CDT
- In force
- 47 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
Counties Bienville Parish, LA, Jackson Parish, LA, Natchitoches Parish, LA, Winn Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 10, 3:44 PM CDT | TORNADO | 2 Wnw Goldonna, LA | EF0 TORNADO OCCURRED NEAR GOLDONNA LOUISIANA ALONG A 2.2 MILE LENGTH PATH THAT WAS 75 YARDS WIDE. SEVERAL TREES WERE UPROOTED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 10, 1:29 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 8.7 hours before the alert went out and 102 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
- 728 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 459 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 141 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS54 KSHV 102043 TORSHV LAC013-049-069-127-102130- /O.NEW.KSHV.TO.W.0049.090510T2043Z-090510T2130Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 343 PM CDT SUN MAY 10 2009 THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A * TORNADO WARNING FOR... SOUTHWESTERN JACKSON PARISH IN NORTH CENTRAL LOUISIANA... NORTHWESTERN WINN PARISH IN NORTH CENTRAL LOUISIANA... SOUTHEASTERN BIENVILLE PARISH IN NORTHWEST LOUISIANA... NORTH CENTRAL NATCHITOCHES PARISH IN NORTHWEST LOUISIANA... * UNTIL 430 PM CDT * AT 343 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR CHESTNUT... OR 21 MILES SOUTHWEST OF JONESBORO...MOVING SOUTHEAST AT 15 MPH. * THE TORNADO WILL BE NEAR... OSHKOSH BY 350 PM CDT... 8 MILES SOUTHWEST OF MILL BY 405 PM CDT... GOLDONNA BY 410 PM CDT... COLDWATER BY 425 PM CDT... CALVIN AND 7 MILES NORTH OF COULEY BY 430 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SUNDAY EVENING FOR NORTHWESTERN LOUISIANA. && LAT...LON 3221 9243 3181 9283 3204 9314 3219 9302 TIME...MOT...LOC 2043Z 306DEG 11KT 3206 9300 $$ D. BUTTS
3 follow-up statements
000 WWUS54 KSHV 102056 SVSSHV SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 356 PM CDT SUN MAY 10 2009 LAC013-049-069-127-102130- /O.CON.KSHV.TO.W.0049.000000T0000Z-090510T2130Z/ BIENVILLE LA-JACKSON LA-NATCHITOCHES LA-WINN LA- 356 PM CDT SUN MAY 10 2009 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR WINN... NATCHITOCHES...JACKSON AND BIENVILLE PARISHES... AT 354 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS POSSIBLY RAIN WRAPPED...AND LOCATED NEAR OSHKOSH...OR 20 MILES SOUTHWEST OF JONESBORO...MOVING SOUTHEAST AT 15 MPH. THIS STORM IS ALSO CAPABLE OF PRODUCING HAIL LARGER THAN AN INCH IN DIAMETER...ESPECIALLY BETWEEN SALINE AND GOLDONNA. THE TORNADO WILL BE NEAR... 9 MILES SOUTHWEST OF MILL BY 405 PM CDT... GOLDONNA BY 410 PM CDT... COLDWATER BY 425 PM CDT... CALVIN AND 7 MILES NORTH OF COULEY BY 430 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SUNDAY EVENING FOR NORTHWESTERN LOUISIANA. STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN SHREVEPORT. && LAT...LON 3221 9243 3181 9283 3204 9314 3219 9302 TIME...MOT...LOC 2054Z 306DEG 11KT 3204 9297 $$ D. BUTTS
000
WWUS54 KSHV 102106
SVSSHV
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
406 PM CDT SUN MAY 10 2009
LAC013-102115-
/O.CAN.KSHV.TO.W.0049.000000T0000Z-090510T2130Z/
BIENVILLE LA-
406 PM CDT SUN MAY 10 2009
...THE TORNADO WARNING FOR BIENVILLE PARISH IS CANCELLED...
THE PART OF THE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO HAS
MOVED OUT OF BIENVILLE PARISH.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SUNDAY
EVENING FOR NORTHWESTERN LOUISIANA.
STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN
SHREVEPORT.
LAT...LON 3181 9283 3202 9311 3215 9292 3215 9281
3216 9281 3218 9247 3217 9247
TIME...MOT...LOC 2105Z 306DEG 11KT 3202 9293
$$
LAC049-069-127-102130-
/O.CON.KSHV.TO.W.0049.000000T0000Z-090510T2130Z/
JACKSON LA-NATCHITOCHES LA-WINN LA-
406 PM CDT SUN MAY 10 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR WINN...
NATCHITOCHES AND JACKSON PARISHES...
AT 404 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS POSSIBLY RAIN WRAPPED TORNADO WAS LOCATED
NEAR GOLDONNA...OR 19 MILES NORTHWEST OF WINNFIELD...MOVING
SOUTHEAST AT 15 MPH. LARGE HAIL...POSSIBLY BIGGER THAN AN INCH IN
DIAMETER...REMAINS POSSIBLE WITH THIS STORM.
THE TORNADO WILL BE NEAR...
GOLDONNA BY 410 PM CDT...
COLDWATER BY 425 PM CDT...
CALVIN AND 8 MILES NORTH OF COULEY BY 430 PM CDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SUNDAY
EVENING FOR NORTHWESTERN LOUISIANA.
STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN
SHREVEPORT.
&&
LAT...LON 3181 9283 3202 9311 3215 9292 3215 9281
3216 9281 3218 9247 3217 9247
TIME...MOT...LOC 2105Z 306DEG 11KT 3202 9293
$$
D. BUTTS000 WWUS54 KSHV 102122 SVSSHV SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 422 PM CDT SUN MAY 10 2009 LAC049-102128- /O.CAN.KSHV.TO.W.0049.000000T0000Z-090510T2130Z/ JACKSON LA- 422 PM CDT SUN MAY 10 2009 ...THE TORNADO WARNING FOR JACKSON PARISH IS CANCELLED... THE PART OF THE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO HAS MOVED OUT OF JACKSON PARISH. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SUNDAY EVENING FOR NORTHWESTERN LOUISIANA. STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN SHREVEPORT. LAT...LON 3181 9283 3202 9311 3215 9292 3215 9250 TIME...MOT...LOC 2118Z 300DEG 12KT 3201 9286 $$ LAC069-127-102130- /O.CON.KSHV.TO.W.0049.000000T0000Z-090510T2130Z/ NATCHITOCHES LA-WINN LA- 422 PM CDT SUN MAY 10 2009 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR WINN AND NATCHITOCHES PARISHES... AT 417 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS POSSIBLY RAIN WRAPPED TORNADO WAS LOCATED NEAR COLDWATER...OR 15 MILES NORTHWEST OF WINNFIELD...MOVING SOUTHEAST AT 15 MPH. LARGE HAIL...BIGGER THAN AN INCH IN DIAMETER...REMAINS POSSIBLE WITH THIS SEVERE STORM. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO GANSVILLE...TANNEHILL...GAARS MILL...DODSON...COULEY AND CALVIN. DOPPLER RADAR SHOWS STRONG INDICATION OF A TORNADO. TAKE SHELTER NOW A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SUNDAY EVENING FOR NORTHWESTERN LOUISIANA. STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN SHREVEPORT. LAT...LON 3181 9283 3202 9311 3215 9292 3215 9250 TIME...MOT...LOC 2118Z 300DEG 12KT 3201 9286 $$ D. BUTTS
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 11:20 AM CDT | River Flood Warning | SHV | Bienville, Bossier, Red River, Webster | 7 days |
| May 10, 11:22 AM CDT | River Flood Warning | SHV | Bienville, Bossier, Caddo, Natchitoches, Red River | 6 days |
| May 10, 11:22 AM CDT | River Flood Warning | SHV | Grant, Natchitoches, Red River | 10 days |
| May 10, 1:12 PM CDT | Severe Thunderstorm Warning | SHV | Winn | 48 min |
| May 10, 3:16 PM CDT | Tornado Warning | SHV | Bienville, Jackson, Natchitoches, Red River, Winn | 29 min |
| May 10, 4:29 PM CDT | Tornado Warning | SHV | Grant, Natchitoches, Winn | 46 min |
| May 10, 4:55 PM CDT | Tornado Warning | SHV | Natchitoches, Red River | 35 min |
| May 10, 5:18 PM CDT | Severe Thunderstorm Warning | SHV | Caldwell, Grant, LaSalle, Winn | 42 min |
| May 10, 5:39 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Natchitoches, Red River | 51 min |
| May 10, 6:07 PM CDT | Severe Thunderstorm Warning | SHV | De Soto, Natchitoches, Red River | 38 min |
| May 10, 6:40 PM CDT | Severe Thunderstorm Warning | SHV | Caldwell | 35 min |
Nearby
Tornado Warnings in Louisiana, 2009Every tornado warning in 2009Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.