Alert archive / Texas / Tornado Warnings in 2017
Tornado Warning 39, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at Apr 2, 2017, 1:16 PM CDT for 4 counties in Texas. It was in force for 44 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
- Apr 2, 2017, 1:16 PM CDT (18:16 UTC)
- Expired
- Apr 2, 2017, 2:00 PM CDT
- In force
- 44 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Nacogdoches County, TX, Panola County, TX, San Augustine County, TX, Shelby County, TX
The radar
The Shreveport radar (KSHV), 103 km from the middle of the area, began a volume at 18:19 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 |
|---|---|---|---|
| Apr 2, 10:39 AM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Shreveport, LA (KBAD), launched 12:00Z, 6.3 hours before the alert went out and 110 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
- 25 J/kg
- Mixed-layer CIN
- -354 J/kg
- Mixed-layer LCL
- 1030 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 141 m²/s²
- 0-3 km storm-relative helicity
- 206 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
992
WFUS54 KSHV 021816
TORSHV
TXC347-365-405-419-021900-
/O.NEW.KSHV.TO.W.0039.170402T1816Z-170402T1900Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Shreveport LA
116 PM CDT SUN APR 2 2017
The National Weather Service in Shreveport has issued a
* Tornado Warning for...
Southern Panola County in northeastern Texas...
Northeastern Nacogdoches County in eastern Texas...
Western Shelby County in eastern Texas...
Northwestern San Augustine County in eastern Texas...
* Until 200 PM CDT
* At 116 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Melrose, or 8 miles east of Nacogdoches, moving
northeast 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...
Martinsville around 125 PM CDT.
Center around 150 PM CDT.
Tenaha around 155 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Arcadia, James, Jericho, Oak Ridge and Stockman.
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 3146 9451 3155 9465 3198 9428 3183 9402
TIME...MOT...LOC 1816Z 220DEG 39KT 3158 9451
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
122 follow-up statements
329
WWUS54 KSHV 021839
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
139 PM CDT SUN APR 2 2017
TXC347-365-405-021848-
/O.CAN.KSHV.TO.W.0039.000000T0000Z-170402T1900Z/
Panola TX-Nacogdoches TX-San Augustine TX-
139 PM CDT SUN APR 2 2017
...THE TORNADO WARNING FOR SOUTHERN PANOLA...NORTHEASTERN NACOGDOCHES
AND NORTHWESTERN SAN AUGUSTINE COUNTIES IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A tornado watch remains in effect until 600 PM CDT for eastern Texas.
A tornado watch also remains in effect until 900 PM CDT for eastern
Texas.
LAT...LON 3165 9433 3167 9439 3176 9441 3195 9423
3183 9402 3171 9418
TIME...MOT...LOC 1838Z 230DEG 31KT 3173 9433
$$
TXC419-021900-
/O.CON.KSHV.TO.W.0039.000000T0000Z-170402T1900Z/
Shelby TX-
139 PM CDT SUN APR 2 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR CENTRAL
SHELBY COUNTY...
At 138 PM CDT, a severe thunderstorm capable of producing a tornado
was located 8 miles northeast of Martinsville, or 9 miles southwest
of Center, moving northeast at 35 mph. Damage has been reported
along the path of this storm.
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...
Center around 155 PM CDT.
Other locations impacted by this tornadic thunderstorm include James,
Jericho and Arcadia.
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 3165 9433 3167 9439 3176 9441 3195 9423
3183 9402 3171 9418
TIME...MOT...LOC 1838Z 230DEG 31KT 3173 9433
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
12069
WWUS54 KSHV 021854
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
154 PM CDT SUN APR 2 2017
TXC419-021904-
/O.EXP.KSHV.TO.W.0039.000000T0000Z-170402T1900Z/
Shelby TX-
154 PM CDT SUN APR 2 2017
...THE TORNADO WARNING FOR CENTRAL SHELBY COUNTY WILL EXPIRE AT 200
PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning will be allowed to expire.
A tornado watch remains in effect until 600 PM CDT for eastern Texas.
A tornado watch also remains in effect until 900 PM CDT for eastern
Texas.
Remember, a Severe Thunderstorm Warning still remains in effect for
Shelby County.
LAT...LON 3165 9433 3167 9439 3176 9441 3195 9423
3183 9402 3171 9418
TIME...MOT...LOC 1854Z 231DEG 51KT 3183 9408
$$
12The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 4:30 AM CDT | Flash Flood Watch | SHV | Angelina, Cherokee, Gregg, Harrison, Marion, Nacogdoches and 8 more | 23 hr |
| Apr 2, 8:26 AM CDT | Special Weather Statement | SHV | Cherokee | 49 min |
| Apr 2, 8:53 AM CDT | Special Weather Statement | SHV | Cherokee | 52 min |
| Apr 2, 9:04 AM CDT | Special Weather Statement | SHV | Nacogdoches | 41 min |
| Apr 2, 9:10 AM CDT | Severe Thunderstorm Warning | SHV | Angelina, Cherokee, Nacogdoches, Rusk | 65 min |
| Apr 2, 9:22 AM CDT | Severe Thunderstorm Warning | SHV | Angelina, Cherokee, Nacogdoches | 53 min |
| Apr 2, 9:25 AM CDT | Special Weather Statement | SHV | Panola, Shelby | 35 min |
| Apr 2, 9:42 AM CDT | Tornado Warning | SHV | Panola, Shelby | 48 min |
| Apr 2, 10:13 AM CDT | Severe Thunderstorm Warning | SHV | Angelina, Nacogdoches | 47 min |
| Apr 2, 10:34 AM CDT | Special Weather Statement | SHV | Harrison, Panola | 41 min |
| Apr 2, 10:56 AM CDT | Severe Thunderstorm Warning | SHV | Nacogdoches, Panola, Rusk, San Augustine, Shelby | 64 min |
| Apr 2, 11:34 AM CDT | Severe Thunderstorm Warning | SHV | Harrison, Nacogdoches, Panola, San Augustine, Shelby | 56 min |
| Apr 2, 11:41 AM CDT | Tornado Warning | SHV | Shelby | 49 min |
| Apr 2, 11:56 AM CDT | Tornado Warning | SHV | Panola, Shelby | 49 min |
| Apr 2, 12:42 PM CDT | Severe Thunderstorm Warning | SHV | Gregg, Harrison, Marion, Nacogdoches, Panola, Rusk and 1 more | 63 min |
| Apr 2, 12:51 PM CDT | Areal Flood Warning | SHV | Nacogdoches | 3 hr |
| Apr 2, 1:02 PM CDT | Tornado Warning | SHV | Harrison, Panola | 43 min |
| Apr 2, 1:09 PM CDT | Severe Thunderstorm Warning | SHV | Angelina, Cherokee, Nacogdoches, Rusk, San Augustine | 66 min |
| Apr 2, 1:41 PM CDT | River Flood Warning | SHV | Angelina, Cherokee, Nacogdoches | 5 days |
| Apr 2, 1:41 PM CDT | River Flood Warning | SHV | Nacogdoches, Rusk, San Augustine, Shelby | 5 days |
| Apr 2, 1:41 PM CDT | Tornado Warning | SHV | Bowie, Camp, Cass, Marion, Morris, Titus and 1 more | 34 min |
| Apr 2, 1:46 PM CDT | River Flood Warning | SHV | Anderson, Cherokee, Houston, Trinity | 4 days |
| Apr 2, 1:46 PM CDT | River Flood Warning | SHV | Angelina, Houston, Polk, Trinity, Tyler | 4 days |
| Apr 2, 1:46 PM CDT | River Flood Warning | SHV | Gregg | 67 hr |
| Apr 2, 1:52 PM CDT | Severe Thunderstorm Warning | SHV | Angelina, Nacogdoches, Panola, Sabine, San Augustine, Shelby | 53 min |
| Apr 2, 2:41 PM CDT | Severe Thunderstorm Warning | SHV | Sabine | 64 min |
| Apr 2, 3:05 PM CDT | Tornado Warning | SHV | Sabine | 40 min |
Nearby
Tornado Warnings in Texas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.