Alert archive / Louisiana / Tornado Warnings in 2012
Tornado Warning 16, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at Mar 21, 2012, 3:14 AM CDT for Jackson Parish, Winn Parish, Louisiana. It was in force for 46 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 21, 2012, 3:14 AM CDT (08:14 UTC)
- Expired
- Mar 21, 2012, 4:00 AM CDT
- In force
- 46 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
Counties Jackson Parish, LA, Winn Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 21, 3:15 AM CDT | TORNADO | 2 S Sikes, LA | AN EF0 TORNADO BRIEFLY TOUCHED DOWN ALONG HWY. 499. A FEW TREES WERE SNAPPED ON THE WEST SIDE OF THE HWY. NEAR PARISH ROAD 1134 AND HWY. 499 INTERSECTION. THE TORNADO WAS MOVING NORTH NORTHEAST AND LIFTED IN A CLEARING BEFORE REACHING THE COMMUNITY OF SIKES. P |
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 |
|---|---|---|---|
| Mar 20, 10:59 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 8.2 hours before the alert went out and 222 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
- 267 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1256 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
680
WFUS54 KSHV 210814
TORSHV
LAC049-127-210900-
/O.NEW.KSHV.TO.W.0016.120321T0814Z-120321T0900Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
314 AM CDT WED MAR 21 2012
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
* TORNADO WARNING FOR...
EASTERN JACKSON PARISH IN NORTH CENTRAL LOUISIANA...
CENTRAL WINN PARISH IN NORTH CENTRAL LOUISIANA...
* UNTIL 400 AM CDT
* AT 313 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 8 MILES SOUTH OF
SIKES...OR 9 MILES EAST OF WINNFIELD...MOVING NORTH AT 45 MPH.
SIKES IS IN THE DIRECT PATH OF THIS TORNADO. TAKE COVER
IMMEDIATELY.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CHATHAM AND EROS...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
&&
LAT...LON 3192 9244 3194 9257 3248 9259 3246 9241
3241 9242 3232 9231 3227 9231
TIME...MOT...LOC 0813Z 189DEG 38KT 3203 9249
$$2 follow-up statements
692
WWUS54 KSHV 210824
SVSSHV
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
324 AM CDT WED MAR 21 2012
LAC049-127-210900-
/O.CON.KSHV.TO.W.0016.000000T0000Z-120321T0900Z/
JACKSON LA-WINN LA-
324 AM CDT WED MAR 21 2012
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 AM CDT FOR WINN AND
JACKSON PARISHES...
AT 323 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A STORM CAPABLE OF PRODUCING A TORNADO NEAR THE SIKES
COMMUNITY. THIS STORM WAS MOVING TO THE NORTH NORTHEAST NEAR 45 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CHATHAM
AND EROS
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.
&&
LAT...LON 3202 9242 3204 9256 3248 9259 3246 9241
3241 9242 3231 9231 3226 9231
TIME...MOT...LOC 0823Z 189DEG 38KT 3211 9247
$$
13379
WWUS54 KSHV 210834
SVSSHV
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
334 AM CDT WED MAR 21 2012
LAC127-210842-
/O.CAN.KSHV.TO.W.0016.000000T0000Z-120321T0900Z/
WINN LA-
334 AM CDT WED MAR 21 2012
...THE TORNADO WARNING FOR WINN PARISH IS CANCELLED...
LAT...LON 3215 9237 3215 9249 3248 9259 3246 9241
3241 9242 3231 9231 3226 9231
TIME...MOT...LOC 0832Z 189DEG 38KT 3218 9244
$$
LAC049-210900-
/O.CON.KSHV.TO.W.0016.000000T0000Z-120321T0900Z/
JACKSON LA-
334 AM CDT WED MAR 21 2012
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 AM CDT FOR JACKSON
PARISH...
AT 332 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A STORM CAPABLE OF PRODUCING A TORNADO 5 MILES SOUTH OF
CHATHAM...MOVING NORTH NORTHEAST NEAR 45 MPH.
CHATHAM IS IN THE PATH OF THIS STORM. TAKE COVER IMMEDIATELY.
&&
LAT...LON 3215 9237 3215 9249 3248 9259 3246 9241
3241 9242 3231 9231 3226 9231
TIME...MOT...LOC 0832Z 189DEG 38KT 3218 9244
$$
13The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 20, 8:55 PM CDT | Flash Flood Warning | SHV | Grant, Natchitoches, Sabine, Winn | 10 hr |
| Mar 20, 9:02 PM CDT | River Flood Warning | SHV | Bienville, Bossier, Red River, Webster | 11 days |
| Mar 20, 9:03 PM CDT | Tornado Warning | SHV | Natchitoches | 27 min |
| Mar 20, 9:15 PM CDT | Flash Flood Warning | SHV | Bienville, De Soto, Red River | 9 hr |
| Mar 20, 9:24 PM CDT | Tornado Warning | SHV | Natchitoches | 36 min |
| Mar 20, 10:20 PM CDT | Tornado Warning | SHV | Grant, Natchitoches | 40 min |
| Mar 20, 10:50 PM CDT | Flash Flood Warning | SHV | Bossier, Claiborne, Webster | 10 hr |
| Mar 21, 1:52 AM CDT | Flash Flood Warning | SHV | Bienville, Jackson, Lincoln, Union | 8 hr |
| Mar 21, 2:49 AM CDT | Tornado Warning | SHV | Grant, Winn | 26 min |
| Mar 21, 5:41 AM CDT | Tornado Warning | SHV | Jackson, Winn | 34 min |
| Mar 21, 6:16 AM CDT | Flash Flood Warning | SHV | Bienville, Red River | 3 hr |
| Mar 21, 6:47 AM CDT | Flash Flood Warning | SHV | Grant, Natchitoches, Red River, Sabine, Winn | 4 hr |
| Mar 21, 8:44 AM CDT | Flash Flood Warning | SHV | Claiborne | 2 hr |
| Mar 21, 9:36 AM CDT | Flash Flood Warning | SHV | Union | 114 min |
| Mar 21, 10:51 AM CDT | Flash Flood Warning | SHV | Grant, Natchitoches, Winn | 3 hr |
| Mar 21, 1:53 PM CDT | Areal Flood Warning | SHV | Natchitoches | 6 hr |
Nearby
Tornado Warnings in Louisiana, 2012Every tornado warning in 2012Tornadoes 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.