Alert archive / Arkansas / Tornado Watches in 2015

Tornado Watch 215

May 25, 201546 counties in Arkansas; 17 parishes in Louisiana

The Storm Prediction Center issued this tornado watch at May 25, 2015, 5:51 PM CDT for 46 counties in Arkansas; 17 parishes in Louisiana. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: May 25, 2015, 5:51 PM CDT (22:51 UTC)
Expired: May 25, 2015, 11:56 PM CDT
In force: 6 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 60 kt

All 63 counties

Arkansas County, AR, Baxter County, AR, Boone County, AR, Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleburne County, AR, Cleveland County, AR, Columbia County, AR, Conway County, AR, Dallas County, AR, Drew County, AR, Faulkner County, AR, Fulton County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Johnson County, AR, Lafayette County, AR, Lincoln County, AR, Lonoke County, AR, Marion County, AR, Monroe County, AR, Montgomery County, AR, Nevada County, AR, Newton County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Searcy County, AR, Sharp County, AR, Stone County, AR, Union County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Caldwell Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, Grant Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Red River Parish, LA, Sabine Parish, LA, Union Parish, LA, Webster Parish, LA, Winn Parish, LA

The radar

The Little Rock radar (KLZK), 87 km from the middle of the area, began a volume at 22:50 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: 80%
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: 95%

Warnings issued inside it

48 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
May 25, 5:59 PM CDT	Severe Thunderstorm Warning	SHV	Union	61 min
May 25, 6:03 PM CDT	Tornado Warning	LZK	Perry, Yell	27 min
May 25, 6:07 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, White	10 min
May 25, 6:17 PM CDT	Severe Thunderstorm Warning	LZK	Logan, Montgomery, Pike, Scott, Yell	58 min
May 25, 6:20 PM CDT	Severe Thunderstorm Warning	SHV	Columbia, Hempstead, Howard, Lafayette, Little River, Miller and 2 more	55 min
May 25, 6:26 PM CDT	Tornado Warning	LZK	Perry, Pope, Yell	34 min
May 25, 6:36 PM CDT	Severe Thunderstorm Warning	LZK	Bradley, Calhoun, Cleveland	54 min
May 25, 6:45 PM CDT	Tornado Warning	LZK	Logan, Yell	30 min
May 25, 6:47 PM CDT	Tornado Warning Tornado observed	LZK	Pope, Yell	43 min
May 25, 6:50 PM CDT	Severe Thunderstorm Warning	LZK	Clark, Garland, Hot Spring, Montgomery, Pike	55 min
May 25, 7:03 PM CDT	Flash Flood Warning	SHV	Columbia, Hempstead, Lafayette, Miller, Nevada	4 hr
May 25, 7:04 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Natchitoches, Winn	56 min
May 25, 7:05 PM CDT	Severe Thunderstorm Warning	LZK	Conway, Garland, Johnson, Logan, Montgomery, Perry and 3 more	55 min
May 25, 7:07 PM CDT	Tornado Warning	SHV	Bienville, Jackson, Natchitoches, Winn	38 min
May 25, 7:16 PM CDT	Flash Flood Warning	LZK	Clark, Garland, Hot Spring, Logan, Montgomery, Perry and 5 more	6 hr
May 25, 7:18 PM CDT	Severe Thunderstorm Warning	SHV	Columbia, Hempstead, Lafayette, Nevada	42 min
May 25, 7:25 PM CDT	Severe Thunderstorm Warning	LZK	Dallas, Grant, Ouachita	50 min
May 25, 7:27 PM CDT	Severe Thunderstorm Warning	SHV	Bossier, Caddo, De Soto, Sabine	63 min
May 25, 7:28 PM CDT	Severe Thunderstorm Warning	LZK	Johnson, Pope	32 min
May 25, 7:31 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Izard, Stone	44 min
May 25, 7:35 PM CDT	Severe Thunderstorm Warning	LZK	Ouachita	25 min
May 25, 7:36 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Marion, Searcy	26 min
May 25, 7:36 PM CDT	Tornado Warning	SHV	Caddo, De Soto	39 min
May 25, 7:37 PM CDT	Severe Thunderstorm Warning	LZK	Clark, Cleveland, Dallas, Garland, Grant, Hot Spring and 2 more	53 min
May 25, 7:49 PM CDT	Severe Thunderstorm Warning	LZK	Conway, Faulkner, Perry, Pope, Pulaski, Saline and 1 more	56 min
May 25, 7:57 PM CDT	Severe Thunderstorm Warning	LZK	Calhoun, Clark, Cleveland, Dallas, Ouachita	48 min
May 25, 8:04 PM CDT	Tornado Warning	LZK	Johnson, Newton, Pope	26 min
May 25, 8:06 PM CDT	Severe Thunderstorm Warning	LZK	Boone, Johnson, Marion, Newton, Pope, Searcy and 2 more	39 min
May 25, 8:10 PM CDT	Tornado Warning	SHV	Bossier, Caddo, De Soto	44 min
May 25, 8:14 PM CDT	Flash Flood Warning	SHV	Bossier, Caddo, De Soto	4 hr
May 25, 8:17 PM CDT	Severe Thunderstorm Warning	LZK	Cleveland, Dallas, Faulkner, Grant, Jefferson, Lonoke and 2 more	58 min
May 25, 8:18 PM CDT	Tornado Warning	LZK	Pulaski, Saline	27 min
May 25, 8:26 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Bossier, Caddo, Claiborne, De Soto, Natchitoches and 2 more	64 min
May 25, 8:29 PM CDT	Severe Thunderstorm Warning	LZK	Cleburne, Conway, Faulkner, Lonoke, Searcy, Stone and 2 more	61 min
May 25, 8:33 PM CDT	Tornado Warning	SHV	Bienville, Bossier, Caddo, Webster	42 min
May 25, 8:39 PM CDT	Tornado Warning	LZK	Faulkner, Pulaski	23 min
May 25, 8:42 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Izard, Marion, Newton, Pope, Searcy and 2 more	48 min
May 25, 8:46 PM CDT	Severe Thunderstorm Warning	LZK	Calhoun, Dallas, Ouachita	44 min
May 25, 9:05 PM CDT	Tornado Warning	SHV	Natchitoches, Red River, Winn	40 min
May 25, 9:09 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Fulton, Izard, Marion, Searcy, Stone	51 min
May 25, 9:13 PM CDT	Flash Flood Warning	LZK	Boone, Conway, Faulkner, Johnson, Logan, Marion and 5 more	6 hr
May 25, 9:16 PM CDT	Flash Flood Warning	LZK	Clark, Conway, Dallas, Faulkner, Garland, Grant and 6 more	6 hr
May 25, 9:22 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Caldwell, Claiborne, Jackson, Lincoln, Natchitoches and 4 more	53 min
May 25, 9:37 PM CDT	Severe Thunderstorm Warning	LZK	Grant, Jefferson, Lonoke, Pulaski, Saline	23 min
May 25, 9:39 PM CDT	Severe Thunderstorm Warning	LZK	Cleburne, Independence, Jackson, White	51 min
May 25, 9:51 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Cleburne, Fulton, Independence, Izard, Sharp and 1 more	39 min
May 25, 10:05 PM CDT	Severe Thunderstorm Warning	SHV	Caldwell, Jackson, Lincoln, Ouachita, Union, Winn	40 min
May 25, 10:44 PM CDT	Severe Thunderstorm Warning	SHV	Caldwell, Jackson, LaSalle, Ouachita, Union, Winn	31 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, 10.9 hours before the alert went out and 233 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 261 J/kg
Mixed-layer CIN: -147 J/kg
Mixed-layer LCL: 922 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 115 m²/s²
0-3 km storm-relative helicity: 129 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 24, 8:41 PM CDT	Mesoscale Discussion	SPC	Mississippi	64 min
May 25, 2:35 PM CDT	Mesoscale Discussion	SPC	Little River, Polk, Sevier	55 min
May 25, 2:52 PM CDT	Tornado Watch	SPC	Benton, Carroll, Crawford, Franklin, Howard, Little River and 8 more	8 hr
May 25, 5:15 PM CDT	Mesoscale Discussion	SPC	Arkansas, Ashley, Baxter, Bradley, Calhoun, Clark and 48 more	90 min
May 24, 7:42 PM CDT	Mesoscale Discussion	SPC	Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 18 more	93 min
May 25, 2:38 AM CDT	Mesoscale Discussion	SPC	Orleans, Saint Tammany, Washington	3 hr
May 25, 6:06 PM CDT	Mesoscale Discussion	SPC	Allen, Beauregard, Calcasieu, Cameron	54 min
May 25, 6:24 PM CDT	Tornado Watch	SPC	Acadia, Allen, Beauregard, Calcasieu, Cameron, Evangeline and 3 more	9 hr

Nearby

Tornado Watches in Arkansas, 2015 Tornado Watches in Louisiana, 2015 Every tornado watch in 2015

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.