Alert archive / Arkansas / Severe Thunderstorm Watches in 2015
Severe Thunderstorm Watch 44
The Storm Prediction Center issued this severe thunderstorm watch at Apr 9, 2015, 3:17 PM CDT for 35 counties in Arkansas; McCurtain County, Oklahoma; 22 counties in Texas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 9, 2015, 3:17 PM CDT (20:17 UTC)
- Expired
- Apr 9, 2015, 10:00 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 65 kt
All 58 counties
Baxter County, AR, Boone County, AR, Cleburne County, AR, Conway County, AR, Faulkner County, AR, Fulton County, AR, Garland County, AR, Hot Spring County, AR, Howard County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Johnson County, AR, Logan County, AR, Lonoke County, AR, Marion County, AR, Monroe County, AR, Montgomery County, AR, Newton 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, Sevier County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, McCurtain County, OK, Anderson County, TX, Bell County, TX, Delta County, TX, Ellis County, TX, Falls County, TX, Fannin County, TX, Freestone County, TX, Henderson County, TX, Hill County, TX, Hopkins County, TX, Hunt County, TX, Kaufman County, TX, Lamar County, TX, Leon County, TX, Limestone County, TX, McLennan County, TX, Milam County, TX, Navarro County, TX, Rains County, TX, Red River County, TX, Robertson County, TX, Van Zandt County, TX
The radar
The Western Arkansas radar (KSRX), 123 km from the middle of the area, began a volume at 20:19 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 10%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 50%
- One or more hailstones of 2 inches or more
- 40%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
31 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 3:59 PM CDT | Severe Thunderstorm Warning | FWD | Limestone, McLennan | 61 min |
| Apr 9, 4:32 PM CDT | Severe Thunderstorm Warning | SHV | Hempstead, Howard, Little River, Miller, Sevier | 28 min |
| Apr 9, 4:57 PM CDT | Severe Thunderstorm Warning | SHV | Hempstead, Howard | 18 min |
| Apr 9, 4:57 PM CDT | Severe Thunderstorm Warning | FWD | Henderson, Van Zandt | 40 min |
| Apr 9, 4:58 PM CDT | Severe Thunderstorm Warning | FWD | Freestone, Limestone | 47 min |
| Apr 9, 5:12 PM CDT | Severe Thunderstorm Warning | LZK | Newton | 48 min |
| Apr 9, 5:12 PM CDT | Severe Thunderstorm Warning | LZK | Clark, Garland, Hot Spring, Montgomery, Pike | 33 min |
| Apr 9, 5:22 PM CDT | Severe Thunderstorm Warning | LZK | Garland, Pulaski, Saline | 23 min |
| Apr 9, 5:34 PM CDT | Severe Thunderstorm Warning | LZK | Newton, Pope, Searcy, Stone, Van Buren | 26 min |
| Apr 9, 5:40 PM CDT | Severe Thunderstorm Warning | FWD | Freestone, Limestone | 65 min |
| Apr 9, 5:41 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Faulkner, Lonoke, Perry, Pulaski, Saline | 49 min |
| Apr 9, 5:42 PM CDT | Severe Thunderstorm Warning | LZK | Clark, Garland, Hot Spring, Montgomery | 48 min |
| Apr 9, 5:45 PM CDT | Severe Thunderstorm Warning | LZK | Boone, Marion, Newton, Searcy | 45 min |
| Apr 9, 5:49 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Perry, Pope, Saline | 25 min |
| Apr 9, 5:53 PM CDT | Severe Thunderstorm Warning | LZK | Cleburne, Van Buren | 52 min |
| Apr 9, 5:55 PM CDT | Severe Thunderstorm Warning | LZK | Independence, Jackson | 35 min |
| Apr 9, 6:01 PM CDT | Severe Thunderstorm Warning | LZK | Searcy, Stone, Van Buren | 44 min |
| Apr 9, 6:19 PM CDT | Severe Thunderstorm Warning | FWD | Leon | 56 min |
| Apr 9, 6:24 PM CDT | Severe Thunderstorm Warning | LZK | Faulkner, Lonoke, Pulaski, White | 36 min |
| Apr 9, 6:27 PM CDT | Severe Thunderstorm Warning | LZK | Fulton, Izard, Sharp | 33 min |
| Apr 9, 6:30 PM CDT | Severe Thunderstorm Warning | LZK | Cleburne, Independence, Jackson, White | 30 min |
| Apr 9, 6:34 PM CDT | Severe Thunderstorm Warning | LZK | Independence, Izard, Stone | 26 min |
| Apr 9, 6:37 PM CDT | Severe Thunderstorm Warning | LZK | Cleburne, Faulkner, Van Buren, White | 38 min |
| Apr 9, 6:40 PM CDT | Severe Thunderstorm Warning | LZK | Sharp | 35 min |
| Apr 9, 6:55 PM CDT | Severe Thunderstorm Warning | LZK | Independence, Jackson, White | 50 min |
| Apr 9, 6:57 PM CDT | Severe Thunderstorm Warning | LZK | Fulton, Sharp | 10 min |
| Apr 9, 7:01 PM CDT | Severe Thunderstorm Warning | LZK | Cleburne, Jackson, White, Woodruff | 29 min |
| Apr 9, 7:16 PM CDT | Severe Thunderstorm Warning | LZK | Cleburne, Independence | 29 min |
| Apr 9, 7:57 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Faulkner, Garland, Perry, Pulaski, Saline | 33 min |
| Apr 9, 9:15 PM CDT | Flash Flood Warning | LZK | Cleburne, Independence, Jackson, Sharp, Stone, White | 105 min |
| Apr 9, 9:26 PM CDT | Severe Thunderstorm Warning | LZK | Independence, Jackson | 34 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, 8.3 hours before the alert went out and 195 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
- 641 J/kg
- Mixed-layer CIN
- -116 J/kg
- Mixed-layer LCL
- 674 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 207 m²/s²
- 0-3 km storm-relative helicity
- 244 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 4.1
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 2:15 PM CDT | Mesoscale Discussion | SPC | Arkansas, Bradley, Calhoun, Clark, Cleburne, Cleveland and 32 more | 2 hr |
| Apr 9, 2:32 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more | 7 hr |
| Apr 9, 3:06 PM CDT | Tornado Watch | SPC | Arkansas, Bradley, Calhoun, Clark, Cleveland, Columbia and 13 more | 7 hr |
| Apr 9, 6:11 PM CDT | Mesoscale Discussion | SPC | Arkansas, Baxter, Bradley, Calhoun, Clark, Clay and 57 more | 64 min |
| Apr 9, 6:32 PM CDT | Severe Thunderstorm Watch | SPC | Ashley, Chicot, Clay, Craighead, Crittenden, Cross and 8 more | 5 hr |
| Apr 8, 7:45 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Beckham, Blaine, Caddo, Canadian, Custer and 22 more | 90 min |
| Apr 9, 1:32 PM CDT | Mesoscale Discussion | SPC | Ottawa | 118 min |
| Apr 8, 7:23 PM CDT | Severe Thunderstorm Watch | SPC | Borden, Childress, Coke, Cottle, Crosby, Dawson and 27 more | 3 hr |
| Apr 8, 9:34 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Haskell, Throckmorton, Wichita, Wilbarger and 1 more | 56 min |
| Apr 9, 4:53 PM CDT | Mesoscale Discussion | SPC | Bosque, Collin, Comanche, Dallas, Denton, Erath and 8 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Arkansas, 2015Severe Thunderstorm Watches in Texas, 2015Severe Thunderstorm Watches in Oklahoma, 2015Every severe thunderstorm 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.