Alert archive / Arkansas / Tornado Watches in 2016
Tornado Watch 125
The Storm Prediction Center issued this tornado watch at Apr 29, 2016, 1:43 PM CDT for 4 states. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 29, 2016, 1:43 PM CDT (18:43 UTC)
- Expired
- Apr 29, 2016, 10:00 PM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 40 counties
Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleveland County, AR, Columbia County, AR, Dallas County, AR, Hempstead County, AR, Howard County, AR, Lafayette County, AR, Little River County, AR, Miller County, AR, Nevada County, AR, Ouachita County, AR, Pike County, AR, Sevier County, AR, Union County, AR, Bossier Parish, LA, Caddo Parish, LA, Claiborne Parish, LA, Lincoln Parish, LA, Ouachita Parish, LA, Union Parish, LA, Webster Parish, LA, McCurtain County, OK, Bowie County, TX, Camp County, TX, Cass County, TX, Cherokee County, TX, Franklin County, TX, Gregg County, TX, Harrison County, TX, Marion County, TX, Morris County, TX, Panola County, TX, Red River County, TX, Rusk County, TX, Smith County, TX, Titus County, TX, Upshur County, TX, Wood County, TX
The radar
The Shreveport radar (KSHV), 128 km from the middle of the area, began a volume at 18:45 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 50%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
27 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 2:43 PM CDT | Severe Thunderstorm Warning | SHV | Ouachita, Union | 48 min |
| Apr 29, 2:47 PM CDT | Flash Flood Warning | SHV | Camp, Franklin, Morris, Smith, Titus, Upshur and 1 more | 5 hr |
| Apr 29, 4:57 PM CDT | Flash Flood Warning | LZK | Clark, Pike | 5 hr |
| Apr 29, 5:13 PM CDT | Severe Thunderstorm Warning | SHV | Smith, Wood | 62 min |
| Apr 29, 5:23 PM CDT | Tornado Warning | SHV | Little River | 37 min |
| Apr 29, 5:34 PM CDT | Tornado Warning | SHV | Smith | 29 min |
| Apr 29, 5:42 PM CDT | Tornado Warning | SHV | Hempstead, Nevada | 48 min |
| Apr 29, 5:55 PM CDT | Tornado Warning | SHV | Smith, Upshur, Wood | 33 min |
| Apr 29, 6:06 PM CDT | Tornado Warning | SHV | Smith, Upshur, Wood | 29 min |
| Apr 29, 6:25 PM CDT | Tornado Warning | SHV | Camp, Upshur, Wood | 35 min |
| Apr 29, 6:26 PM CDT | Tornado Warning | SHV | Nevada | 15 min |
| Apr 29, 6:29 PM CDT | Severe Thunderstorm Warning | SHV | Camp, Smith, Upshur, Wood | 45 min |
| Apr 29, 6:42 PM CDT | Tornado Warning | SHV | Camp, Upshur, Wood | 9 min |
| Apr 29, 6:56 PM CDT | Flash Flood Warning | SHV | Bowie, Camp, Cass, Franklin, Morris, Red River and 1 more | 10 hr |
| Apr 29, 6:56 PM CDT | Tornado Warning | SHV | Camp, Morris, Titus, Upshur | 20 min |
| Apr 29, 7:13 PM CDT | Severe Thunderstorm Warning | SHV | Camp, Cass, Morris, Titus, Upshur | 28 min |
| Apr 29, 7:16 PM CDT | Tornado Warning | SHV | Camp, Cass, Harrison, Marion, Morris, Upshur | 23 min |
| Apr 29, 7:24 PM CDT | Flash Flood Warning | SHV | Hempstead, Howard, Little River, Nevada, Sevier | 10 hr |
| Apr 29, 7:35 PM CDT | Tornado Warning | SHV | Cherokee, Nacogdoches, Rusk | 40 min |
| Apr 29, 7:38 PM CDT | Severe Thunderstorm Warning | SHV | Cherokee, Gregg, Rusk, Smith, Upshur | 52 min |
| Apr 29, 7:38 PM CDT | Severe Thunderstorm Warning | SHV | Camp, Cass, Marion, Morris, Upshur | 21 min |
| Apr 29, 7:45 PM CDT | Flash Flood Warning | SHV | Smith, Upshur, Wood | 10 hr |
| Apr 29, 7:59 PM CDT | Severe Thunderstorm Warning | SHV | Angelina, Cherokee, Nacogdoches, Rusk, Shelby | 46 min |
| Apr 29, 8:46 PM CDT | Severe Thunderstorm Warning | SHV | Nacogdoches, Panola, Rusk, San Augustine, Shelby | 44 min |
| Apr 29, 9:21 PM CDT | Flash Flood Warning | SHV | Cass, Gregg, Harrison, Marion, Panola, Rusk | 8 hr |
| Apr 29, 9:23 PM CDT | Flash Flood Warning | LZK | Clark, Montgomery, Pike, Polk | 3 hr |
| Apr 29, 9:58 PM CDT | Tornado Warning | SHV | Bossier, Caddo | 32 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Shreveport, LA (KBAD), launched 12:00Z, 6.7 hours before the alert went out and 127 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
- 1756 J/kg
- Mixed-layer CIN
- -129 J/kg
- Mixed-layer LCL
- 632 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 310 m²/s²
- 0-3 km storm-relative helicity
- 451 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 14.9
The text
As transmitted.
163 WWUS20 KWNS 291836 SEL5 SPC WW 291836 ARZ000-LAZ000-OKZ000-TXZ000-300300- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 125 NWS STORM PREDICTION CENTER NORMAN OK 135 PM CDT FRI APR 29 2016 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF SOUTHWEST AND SOUTH CENTRAL ARKANSAS NORTHWEST LOUISIANA EXTREME SOUTHEAST OKLAHOMA NORTHEAST TEXAS * EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 135 PM UNTIL 1000 PM CDT. * PRIMARY THREATS INCLUDE... A FEW TORNADOES POSSIBLE ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE SUMMARY...THUNDERSTORMS ARE ONGOING IN MULTIPLE BANDS FROM NORTHEAST TEXAS INTO NORTHERN LOUISIANA AND SOUTHWEST ARKANSAS. THESE STORMS SHOULD STRENGTHEN THROUGH THE AFTERNOON...WITH THE POTENTIAL FOR LARGE HAIL AND DAMAGING WINDS. EMBEDDED ROTATING STORMS WILL ALSO BE POSSIBLE...WITH AN ATTENDANT RISK FOR A FEW TORNADOES THIS AFTERNOON. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 70 MILES WEST SOUTHWEST OF DE QUEEN ARKANSAS TO 45 MILES EAST SOUTHEAST OF EL DORADO ARKANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. && OTHER WATCH INFORMATION...CONTINUE...WW 124... AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR 24030. ...THOMPSON
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 1:58 AM CDT | Mesoscale Discussion | SPC | Clark, Columbia, Dallas, Garland, Hempstead, Hot Spring and 11 more | 2 hr |
| Apr 29, 4:21 AM CDT | Severe Thunderstorm Watch | SPC | Arkansas, Clark, Cleveland, Conway, Crawford, Dallas and 25 more | 6 hr |
| Apr 29, 7:06 AM CDT | Mesoscale Discussion | SPC | Arkansas, Bradley, Calhoun, Clark, Cleveland, Dallas and 5 more | 54 min |
| Apr 29, 9:46 AM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 29 more | 89 min |
| Apr 29, 12:51 PM CDT | Mesoscale Discussion | SPC | Bradley, Calhoun, Clark, Columbia, Hempstead, Howard and 8 more | 114 min |
| Apr 29, 5:42 PM CDT | Mesoscale Discussion | SPC | Bradley, Calhoun, Clark, Cleveland, Columbia, Dallas and 11 more | 93 min |
| Apr 29, 12:37 PM CDT | Mesoscale Discussion | SPC | East Carroll, Madison | 83 min |
| Apr 28, 10:54 PM CDT | Severe Thunderstorm Watch | SPC | Beaver, Cimarron, Texas | 7 hr |
| Apr 29, 2:59 AM CDT | Mesoscale Discussion | SPC | Beaver, Ellis, Harper | 91 min |
| Apr 29, 4:54 AM CDT | Mesoscale Discussion | SPC | Harmon | 66 min |
| Apr 29, 1:40 PM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Cleveland, Coal, Comanche and 15 more | 65 min |
| Apr 29, 1:57 PM CDT | Tornado Watch | SPC | Atoka, Bryan, Caddo, Canadian, Carter, Choctaw and 27 more | 8 hr |
| Apr 29, 3:56 PM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Caddo, Carter, Cleveland, Coal and 18 more | 64 min |
| Apr 29, 6:16 PM CDT | Mesoscale Discussion | SPC | Adair, Atoka, Bryan, Carter, Cherokee, Choctaw and 25 more | 89 min |
| Apr 28, 7:52 PM CDT | Mesoscale Discussion | SPC | Bell, Brazos, Burleson, Burnet, Coryell, Falls and 7 more | 83 min |
| Apr 28, 10:31 PM CDT | Mesoscale Discussion | SPC | Armstrong, Bailey, Briscoe, Carson, Castro, Childress and 30 more | 89 min |
| Apr 29, 7:38 AM CDT | Mesoscale Discussion | SPC | Briscoe, Cottle, Crosby, Dickens, Floyd, Foard and 10 more | 97 min |
| Apr 29, 12:52 PM CDT | Mesoscale Discussion | SPC | Bell, Blanco, Bosque, Brown, Burnet, Comanche and 22 more | 113 min |
| Apr 29, 1:08 PM CDT | Tornado Watch | SPC | Anderson, Bell, Bosque, Collin, Comanche, Cooke and 35 more | 9 hr |
| Apr 29, 3:34 PM CDT | Mesoscale Discussion | SPC | Bell, Bosque, Collin, Cooke, Coryell, Dallas and 31 more | 86 min |
Nearby
Tornado Watches in Arkansas, 2016Tornado Watches in Texas, 2016Tornado Watches in Louisiana, 2016Every tornado watch in 2016
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.