Alert archive / Arkansas / Severe Thunderstorm Watches in 2014
Severe Thunderstorm Watch 431
The Storm Prediction Center issued this severe thunderstorm watch at Jul 23, 2014, 12:59 PM CDT for 55 counties in Arkansas; 29 counties in Oklahoma. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 23, 2014, 12:59 PM CDT (17:59 UTC)
- Expired
- Jul 23, 2014, 7:46 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 70 kt
All 84 counties
Arkansas County, AR, Baxter County, AR, Benton County, AR, Boone County, AR, Bradley County, AR, Calhoun County, AR, Carroll County, AR, Clark County, AR, Cleburne County, AR, Cleveland County, AR, Conway County, AR, Crawford County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Faulkner County, AR, Franklin County, AR, Fulton County, AR, Garland County, AR, Grant County, AR, Hot Spring County, AR, Howard County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Johnson County, AR, Lincoln County, AR, Little River County, AR, Logan County, AR, Lonoke County, AR, Madison County, AR, Marion County, AR, Monroe County, AR, Montgomery County, AR, Newton County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Sevier County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, Washington County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Adair County, OK, Atoka County, OK, Bryan County, OK, Cherokee County, OK, Choctaw County, OK, Coal County, OK, Creek County, OK, Delaware County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Mayes County, OK, McCurtain County, OK, McIntosh County, OK, Muskogee County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK
The radar
The Western Arkansas radar (KSRX), 23 km from the middle of the area, began a volume at 17:59 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
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 30%
- 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
- 80%
Warnings issued inside it
43 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 1:04 PM CDT | Severe Thunderstorm Warning | TSA | Benton | 41 min |
| Jul 23, 1:16 PM CDT | Severe Thunderstorm Warning | LZK | Fulton, Sharp | 44 min |
| Jul 23, 1:30 PM CDT | Severe Thunderstorm Warning | TSA | Benton, Washington | 45 min |
| Jul 23, 1:56 PM CDT | Severe Thunderstorm Warning | LZK | Baxter, Fulton, Izard | 49 min |
| Jul 23, 2:00 PM CDT | Severe Thunderstorm Warning | TSA | Benton, Crawford, Washington | 45 min |
| Jul 23, 2:12 PM CDT | Severe Thunderstorm Warning | TSA | Benton, Carroll, Madison, Washington | 48 min |
| Jul 23, 2:14 PM CDT | Severe Thunderstorm Warning | LZK | Johnson, Logan, Pope, Yell | 46 min |
| Jul 23, 2:19 PM CDT | Severe Thunderstorm Warning | TSA | Carroll, Crawford, Franklin, Madison, Sebastian, Washington | 41 min |
| Jul 23, 2:20 PM CDT | Severe Thunderstorm Warning | LZK | Baxter, Marion | 40 min |
| Jul 23, 2:37 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Pope, Yell | 38 min |
| Jul 23, 2:45 PM CDT | Severe Thunderstorm Warning | LZK | Baxter, Fulton, Izard, Marion, Searcy, Stone | 45 min |
| Jul 23, 3:00 PM CDT | Severe Thunderstorm Warning | LZK | Logan, Scott, Yell | 60 min |
| Jul 23, 3:01 PM CDT | Severe Thunderstorm Warning | TSA | Franklin, Sebastian | 44 min |
| Jul 23, 3:18 PM CDT | Flash Flood Warning | LZK | Johnson, Logan, Pope, Yell | 2 hr |
| Jul 23, 3:31 PM CDT | Flash Flood Warning | LZK | Johnson, Logan, Scott, Yell | 119 min |
| Jul 23, 3:33 PM CDT | Severe Thunderstorm Warning | LZK | Independence, Jackson, White, Woodruff | 57 min |
| Jul 23, 3:40 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, LeFlore, Pittsburg, Pushmataha | 65 min |
| Jul 23, 3:41 PM CDT | Severe Thunderstorm Warning | LZK | Montgomery, Pike, Polk, Scott, Yell | 64 min |
| Jul 23, 3:58 PM CDT | Severe Thunderstorm Warning | LZK | Cleburne, Independence, Izard, Sharp, Stone, White | 34 min |
| Jul 23, 3:59 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Faulkner, Garland, Perry, Pulaski, Saline | 46 min |
| Jul 23, 4:00 PM CDT | Flash Flood Warning | TSA | Franklin | 5 hr |
| Jul 23, 4:10 PM CDT | Severe Thunderstorm Warning | SHV | McCurtain | 65 min |
| Jul 23, 4:12 PM CDT | Severe Thunderstorm Warning | LZK | Cleburne, Faulkner, Lonoke, Monroe, Prairie, White and 1 more | 48 min |
| Jul 23, 4:16 PM CDT | Severe Thunderstorm Warning | SHV | Howard, Little River, Sevier | 44 min |
| Jul 23, 4:26 PM CDT | Severe Thunderstorm Warning | LZK | Clark, Garland, Hot Spring, Montgomery, Pike, Polk | 49 min |
| Jul 23, 4:35 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw, Pittsburg, Pushmataha | 55 min |
| Jul 23, 4:38 PM CDT | Severe Thunderstorm Warning | LZK | Faulkner, Lonoke, Pulaski | 52 min |
| Jul 23, 4:57 PM CDT | Severe Thunderstorm Warning | SHV | Little River, Sevier | 63 min |
| Jul 23, 4:58 PM CDT | Severe Thunderstorm Warning | LZK | Lonoke, Monroe, Prairie, Pulaski | 47 min |
| Jul 23, 5:00 PM CDT | Severe Thunderstorm Warning | LZK | Clark, Dallas, Garland, Grant, Hot Spring, Jefferson and 2 more | 45 min |
| Jul 23, 5:00 PM CDT | Severe Thunderstorm Warning | SHV | Hempstead, Howard, Lafayette, Little River, Miller, Sevier | 60 min |
| Jul 23, 5:15 PM CDT | Severe Thunderstorm Warning | LZK | Clark, Garland, Hot Spring | 45 min |
| Jul 23, 5:20 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw, Pushmataha | 40 min |
| Jul 23, 5:24 PM CDT | Flash Flood Warning | LZK | Lonoke, Pulaski, Saline | 2 hr |
| Jul 23, 5:31 PM CDT | Severe Thunderstorm Warning | LZK | Arkansas, Jefferson, Lonoke, Prairie, Pulaski | 29 min |
| Jul 23, 5:38 PM CDT | Severe Thunderstorm Warning | LZK | Calhoun, Clark, Cleveland, Dallas, Grant, Hot Spring and 3 more | 37 min |
| Jul 23, 5:47 PM CDT | Severe Thunderstorm Warning | SHV | Little River | 58 min |
| Jul 23, 5:48 PM CDT | Severe Thunderstorm Warning | LZK | Clark, Ouachita | 27 min |
| Jul 23, 5:50 PM CDT | Severe Thunderstorm Warning | SHV | Columbia, Hempstead, Lafayette, Little River, Miller, Nevada | 40 min |
| Jul 23, 5:58 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw | 17 min |
| Jul 23, 6:00 PM CDT | Severe Thunderstorm Warning | LZK | Arkansas, Calhoun, Clark, Cleveland, Dallas, Grant and 5 more | 45 min |
| Jul 23, 6:22 PM CDT | Severe Thunderstorm Warning | LZK | Ouachita | 38 min |
| Jul 23, 6:42 PM CDT | Severe Thunderstorm Warning | LZK | Bradley, Calhoun, Cleveland, Ouachita | 38 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
Springfield, MO (KSGF), launched 12:00Z, 6.0 hours before the alert went out and 177 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
- 3863 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 981 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 7.1
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 6:29 AM CDT | Mesoscale Discussion | SPC | Clay, Craighead, Greene, Lawrence, Randolph | 2 hr |
| Jul 23, 11:56 AM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Cleburne, Conway and 25 more | 94 min |
| Jul 23, 1:27 PM CDT | Mesoscale Discussion | SPC | Clay, Craighead, Crittenden, Cross, Greene, Lawrence and 3 more | 63 min |
| Jul 23, 1:37 PM CDT | Severe Thunderstorm Watch | SPC | Clay, Craighead, Crittenden, Cross, Greene, Lawrence and 4 more | 4 hr |
| Jul 23, 3:01 PM CDT | Mesoscale Discussion | SPC | Baxter, Clark, Cleburne, Conway, Craighead, Crawford and 46 more | 89 min |
| Jul 23, 4:04 PM CDT | Severe Thunderstorm Watch | SPC | Columbia, Hempstead, Lafayette, Miller, Nevada | 5 hr |
| Jul 23, 6:06 PM CDT | Mesoscale Discussion | SPC | Bradley, Calhoun, Cleveland, Columbia, Drew, Lafayette and 4 more | 84 min |
| Jul 23, 6:29 PM CDT | Severe Thunderstorm Watch | SPC | Union | 5 hr |
Nearby
Severe Thunderstorm Watches in Arkansas, 2014Severe Thunderstorm Watches in Oklahoma, 2014Every severe thunderstorm watch in 2014
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.