Alert archive / Oklahoma / Tornado Warnings in 2009
Tornado Warning 13, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at Mar 27, 2009, 6:43 PM CDT for McCurtain County, Oklahoma. It was in force for 26 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
- Mar 27, 2009, 6:43 PM CDT (23:43 UTC)
- Expired
- Mar 27, 2009, 7:09 PM CDT
- In force
- 26 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
County McCurtain County, OK
The radar
The Western Arkansas radar (KSRX), 103 km from the middle of the area, began a volume at 23:43 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 27, 12:58 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 11.7 hours before the alert went out and 235 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
- 142 J/kg
- Mixed-layer CIN
- -191 J/kg
- Mixed-layer LCL
- 516 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS54 KSHV 272343
TORSHV
OKC089-280030-
/O.NEW.KSHV.TO.W.0013.090327T2343Z-090328T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
643 PM CDT FRI MAR 27 2009
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
* TORNADO WARNING FOR...
NORTHERN MCCURTAIN COUNTY IN SOUTHEAST OKLAHOMA...
* UNTIL 730 PM CDT
* AT 643 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR PICKENS...
OR 22 MILES SOUTHEAST OF CLAYTON...MOVING NORTHEAST AT 45 MPH.
* THE TORNADO WILL BE NEAR...
BATTIEST BY 650 PM CDT...
9 MILES NORTHWEST OF BETHEL BY 655 PM CDT...
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.
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 TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FRIDAY EVENING FOR
NORTH CENTRAL LOUISIANA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
200 AM CDT SATURDAY MORNING FOR SOUTHWESTERN ARKANSAS AND
NORTHWESTERN LOUISIANA AND NORTHEASTERN TEXAS. A TORNADO WATCH ALSO
REMAINS IN EFFECT UNTIL 800 PM CDT FRIDAY EVENING FOR SOUTHWEST
ARKANSAS AND SOUTHEAST OKLAHOMA AND NORTHEASTERN TEXAS.
&&
LAT...LON 3450 9446 3437 9446 3420 9502 3427 9505
3449 9505 3452 9502 3452 9450
TIME...MOT...LOC 2343Z 231DEG 38KT 3438 9506
$$
PARKER1 follow-up statement
000
WWUS54 KSHV 280009
SVSSHV
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
709 PM CDT FRI MAR 27 2009
OKC089-280018-
/O.CAN.KSHV.TO.W.0013.000000T0000Z-090328T0030Z/
MCCURTAIN OK-
709 PM CDT FRI MAR 27 2009
...THE TORNADO WARNING FOR MCCURTAIN COUNTY IS CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT FRIDAY
EVENING FOR SOUTHEAST OKLAHOMA AND NORTHEAST TEXAS. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL 200 AM CDT SATURDAY MORNING FOR
SOUTHWESTERN ARKANSAS AND NORTHWESTERN LOUISIANA AND NORTHEASTERN
TEXAS.
LAT...LON 3450 9446 3437 9446 3420 9502 3427 9505
3449 9505 3452 9502 3452 9450
TIME...MOT...LOC 0008Z 231DEG 38KT 3458 9484
$$
PARKERNearby
Tornado Warnings in Oklahoma, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.