Alert archive / Arkansas / Tornado Warnings in 2017
Tornado Warning 32, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at Mar 27, 2017, 12:19 AM CDT for McCurtain County, Oklahoma; Howard County, Sevier County, Arkansas. It was in force for 41 min. 3 reports 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 27, 2017, 12:19 AM CDT (05:19 UTC)
- Expired
- Mar 27, 2017, 1:00 AM CDT
- In force
- 41 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Howard County, AR, Sevier County, AR, McCurtain County, OK
The radar
The Western Arkansas radar (KSRX), 118 km from the middle of the area, began a volume at 05:20 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 27, 12:37 AM CDT | TSTM WND DMG | 1 S Gillham, AR | TREES DOWN 4 MILES SOUTH OF GILLHAM. |
| Mar 27, 1:00 AM CDT | TSTM WND DMG | 5 Nw De Queen, AR | TREES DOWN ON MILES ROAD. |
| Mar 27, 1:00 AM CDT | TSTM WND DMG | 6 Wnw De Queen, AR | TREES DOWN ON MILES ROAD. |
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 26, 8:49 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Shreveport, LA (KBAD), launched 00:00Z, 5.3 hours before the alert went out and 200 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
- 139 J/kg
- Mixed-layer CIN
- -163 J/kg
- Mixed-layer LCL
- 1965 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 155 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted.
108
WFUS54 KSHV 270519
TORSHV
ARC061-133-OKC089-270600-
/O.NEW.KSHV.TO.W.0032.170327T0519Z-170327T0600Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Shreveport LA
1219 AM CDT MON MAR 27 2017
The National Weather Service in Shreveport has issued a
* Tornado Warning for...
Northwestern Sevier County in southwestern Arkansas...
Northwestern Howard County in southwestern Arkansas...
East central McCurtain County in southeastern Oklahoma...
* Until 100 AM CDT
* At 1219 AM CDT, a severe thunderstorm capable of producing a
tornado was located 7 miles northeast of Broken Bow, or 17 miles
west of De Queen, moving east at 45 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Gillham around 1245 AM CDT.
Umpire and Athens around 100 AM CDT.
Other locations impacted by this tornadic thunderstorm include
Hochatown, Eagletown and Burg.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3435 9394 3427 9394 3426 9392 3420 9393
3399 9469 3416 9477 3428 9447 3419 9447
3419 9425 3436 9425
TIME...MOT...LOC 0519Z 248DEG 37KT 3410 9464
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
061 follow-up statement
564
WWUS54 KSHV 270548
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
1248 AM CDT MON MAR 27 2017
OKC089-270557-
/O.CAN.KSHV.TO.W.0032.000000T0000Z-170327T0600Z/
McCurtain OK-
1248 AM CDT MON MAR 27 2017
...THE TORNADO WARNING FOR EAST CENTRAL MCCURTAIN COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A severe thunderstorm watch remains in effect until 300 AM CDT for
southwestern Arkansas.
LAT...LON 3421 9393 3413 9419 3411 9425 3419 9425
3436 9424 3435 9394 3427 9394 3426 9392
TIME...MOT...LOC 0547Z 252DEG 49KT 3422 9417
$$
ARC061-133-270600-
/O.CON.KSHV.TO.W.0032.000000T0000Z-170327T0600Z/
Sevier AR-Howard AR-
1248 AM CDT MON MAR 27 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 AM CDT FOR NORTH
CENTRAL SEVIER AND NORTHWESTERN HOWARD COUNTIES...
At 1247 AM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles southwest of Umpire, moving east at 55 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Umpire, Athens and Burg.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 3421 9393 3413 9419 3411 9425 3419 9425
3436 9424 3435 9394 3427 9394 3426 9392
TIME...MOT...LOC 0547Z 252DEG 49KT 3422 9417
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
06The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 26, 11:31 PM CDT | Severe Thunderstorm Warning | SHV | McCurtain | 59 min |
| Mar 27, 12:17 AM CDT | Tornado Warning | SHV | McCurtain | 28 min |
| Mar 27, 12:37 AM CDT | Severe Thunderstorm Warning | SHV | McCurtain | 53 min |
| Mar 27, 12:48 AM CDT | Severe Thunderstorm Warning | SHV | McCurtain | 23 min |
| Mar 27, 2:14 AM CDT | Special Weather Statement | SHV | Hempstead | 46 min |
Nearby
Tornado Warnings in Arkansas, 2017Tornado Warnings in Oklahoma, 2017Every tornado warning in 2017Tornadoes in 2017
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; radar from the NEXRAD Level II archive.