Alert archive / Texas / Tornado Warnings in 2017
Tornado Warning 72, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at May 11, 2017, 8:32 PM CDT for Nacogdoches County, Rusk County, Shelby County, Texas. It was in force for 43 min. 6 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
- May 11, 2017, 8:32 PM CDT (01:32 UTC)
- Expired
- May 11, 2017, 9:15 PM CDT
- In force
- 43 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Nacogdoches County, TX, Rusk County, TX, Shelby County, TX
The radar
The Shreveport radar (KSHV), 87 km from the middle of the area, began a volume at 01:32 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 |
|---|---|---|---|
| May 11, 8:33 PM CDT | TORNADO | 1 Sw Garrison, TX | THE GARRISON AREA OF NACOGDOCHES COUNTY SUSTAINED SIGNIFICANT WIND AND TORNADO DAMAGE RELATED TO THIS THUNDERSTORM. THE EF2 TORNADO TOUCHED DOWN SOUTHWEST OF GARRISON ALONG HIGHWAY 59, BEFORE MOVING THROUGH DOWNTOWN GARRISON. SEVERAL BUSINESSES ALONG HIGHWAY 5 |
| May 11, 8:36 PM CDT | TSTM WND DMG | Garrison, TX | POWER OUT IN GARRISON. |
| May 11, 8:36 PM CDT | TSTM WND DMG | Garrison, TX | DAMAGE TO BANK IN GARRISON. SEVERAL TREES DOWN IN THE AREA TOO. |
| May 11, 8:38 PM CDT | TSTM WND DMG | 1 Ne Garrison, TX | LARGE TREE DOWN ACROSS US 59 WITH POWER LINES AND SOME METAL. |
| May 11, 8:50 PM CDT | TSTM WND DMG | 3 Sse Timpson, TX | SHERIFF REPORTS TREES DOWN ON FM ROAD 415 JUST OFF STATE HWY 87. |
| May 11, 8:50 PM CDT | TSTM WND DMG | Timpson, TX | SHERIFF REPORTS TREES DOWN ACROSS N. 2ND STREET BLOCKING ONE LANE. |
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 11, 2:43 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Shreveport, LA (KBAD), launched 00:00Z, 1.5 hours before the alert went out and 95 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
- 1602 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 920 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 152 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 7.0
The text
As transmitted.
942
WFUS54 KSHV 120132
TORSHV
TXC347-401-419-120215-
/O.NEW.KSHV.TO.W.0072.170512T0132Z-170512T0215Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Shreveport LA
832 PM CDT THU MAY 11 2017
The National Weather Service in Shreveport has issued a
* Tornado Warning for...
Southeastern Rusk County in northeastern Texas...
North central Nacogdoches County in eastern Texas...
Northwestern Shelby County in eastern Texas...
* Until 915 PM CDT
* At 831 PM CDT, a severe thunderstorm capable of producing a
tornado was located just west of Garrison, or 16 miles northeast
of Nacogdoches, moving northeast at 20 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...
Garrison around 840 PM CDT.
Timpson around 855 PM CDT.
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.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 3178 9459 3185 9463 3197 9447 3197 9428
3190 9427 3182 9429 3180 9443
TIME...MOT...LOC 0131Z 246DEG 19KT 3183 9453
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
151 follow-up statement
212
WWUS54 KSHV 120153
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
853 PM CDT THU MAY 11 2017
TXC347-401-120201-
/O.CAN.KSHV.TO.W.0072.000000T0000Z-170512T0215Z/
Rusk TX-Nacogdoches TX-
853 PM CDT THU MAY 11 2017
...THE TORNADO WARNING FOR SOUTHEASTERN RUSK AND NORTH CENTRAL
NACOGDOCHES COUNTIES IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A severe thunderstorm watch remains in effect until 1000 PM CDT for
eastern Texas.
LAT...LON 3188 9445 3192 9446 3197 9428 3190 9427
3182 9429 3180 9441
TIME...MOT...LOC 0151Z 256DEG 25KT 3186 9440
$$
TXC419-120215-
/O.CON.KSHV.TO.W.0072.000000T0000Z-170512T0215Z/
Shelby TX-
853 PM CDT THU MAY 11 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR
NORTHWESTERN SHELBY COUNTY...
At 852 PM CDT, a severe thunderstorm capable of producing a tornado
was located about 4 miles south of Timpson, or 13 miles west of
Center, moving east at 30 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation. Significant damage has been
reported with this storm near Garrison.
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 tornadic thunderstorm will remain over mainly rural areas of
northwestern Shelby County.
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.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 3188 9445 3192 9446 3197 9428 3190 9427
3182 9429 3180 9441
TIME...MOT...LOC 0151Z 256DEG 25KT 3186 9440
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
15The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 7:08 PM CDT | Tornado Warning | SHV | Panola, Rusk | 19 min |
| May 11, 7:11 PM CDT | Tornado Warning | SHV | Cherokee, Nacogdoches, Rusk | 24 min |
| May 11, 7:27 PM CDT | Tornado Warning | SHV | Panola | 33 min |
| May 11, 7:40 PM CDT | Severe Thunderstorm Warning | SHV | Angelina, Cherokee, Nacogdoches | 65 min |
| May 11, 7:56 PM CDT | Special Weather Statement | SHV | Marion | 49 min |
| May 11, 8:44 PM CDT | Severe Thunderstorm Warning | SHV | Nacogdoches, Rusk, San Augustine, Shelby | 50 min |
| May 11, 9:00 PM CDT | Tornado Warning | SHV | Shelby | 29 min |
| May 11, 9:08 PM CDT | Tornado Warning | SHV | Camp, Franklin, Titus, Wood | 52 min |
| May 11, 9:17 PM CDT | Severe Thunderstorm Warning | SHV | Shelby | 43 min |
| May 11, 9:46 PM CDT | Severe Thunderstorm Warning | SHV | Camp, Cass, Morris, Titus | 44 min |
| May 11, 10:21 PM CDT | Severe Thunderstorm Warning | SHV | Cherokee, Smith | 54 min |
| May 11, 11:07 PM CDT | Special Weather Statement | SHV | Franklin, Titus, Wood | 38 min |
| May 11, 11:18 PM CDT | Special Weather Statement | SHV | Rusk | 42 min |
| May 11, 11:51 PM CDT | Special Weather Statement | SHV | Titus | 39 min |
| May 12, 12:02 AM CDT | Special Weather Statement | SHV | Upshur | 58 min |
| May 12, 12:40 AM CDT | Special Weather Statement | SHV | Angelina, Nacogdoches, San Augustine, Shelby | 50 min |
| May 12, 4:32 AM CDT | Lake Wind Advisory | SHV | Angelina, Bowie, Camp, Cass, Cherokee, Franklin and 15 more | 13 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.