Alert archive / Arkansas / Severe Thunderstorm Watches in 2015
Severe Thunderstorm Watch 241
The Storm Prediction Center issued this severe thunderstorm watch at May 29, 2015, 6:31 PM CDT for 23 counties in Arkansas. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- May 29, 2015, 6:31 PM CDT (23:31 UTC)
- Expired
- May 29, 2015, 9:48 PM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 23 counties
Baxter County, AR, Boone County, AR, Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleburne County, AR, Cleveland County, AR, Conway County, AR, Dallas County, AR, Faulkner County, AR, Garland County, AR, Grant County, AR, Hot Spring County, AR, Marion County, AR, Newton County, AR, Ouachita County, AR, Perry County, AR, Pope County, AR, Pulaski County, AR, Saline County, AR, Searcy County, AR, Stone County, AR, Van Buren County, AR
The radar
The Little Rock radar (KLZK), 61 km from the middle of the area, began a volume at 23:34 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
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 10%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 6:40 PM CDT | Severe Thunderstorm Warning | LZK | Clark, Dallas, Ouachita | 35 min |
| May 29, 6:49 PM CDT | Severe Thunderstorm Warning | LZK | Garland, Hot Spring, Perry, Saline | 41 min |
| May 29, 6:59 PM CDT | Severe Thunderstorm Warning | LZK | Clark, Dallas, Hot Spring | 31 min |
| May 29, 7:02 PM CDT | Severe Thunderstorm Warning | LZK | Clark, Dallas, Grant, Hot Spring | 28 min |
| May 29, 7:21 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Perry, Pope, Pulaski, Saline, Yell | 39 min |
| May 29, 7:28 PM CDT | Severe Thunderstorm Warning | LZK | Garland, Hot Spring, Pulaski, Saline | 47 min |
| May 29, 7:31 PM CDT | Severe Thunderstorm Warning | LZK | Dallas, Grant, Hot Spring | 29 min |
| May 29, 7:47 PM CDT | Severe Thunderstorm Warning | LZK | Faulkner, Grant, Hot Spring, Perry, Pulaski, Saline | 43 min |
| May 29, 7:58 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Pope, Searcy, Van Buren, Yell | 47 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, 11.5 hours before the alert went out and 208 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
- 535 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 864 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 12:33 PM CDT | Mesoscale Discussion | SPC | Calhoun, Clark, Columbia, Conway, Dallas, Franklin and 24 more | 87 min |
| May 29, 2:09 PM CDT | Tornado Watch | SPC | Benton, Carroll, Crawford, Franklin, Hempstead, Howard and 12 more | 5 hr |
| May 29, 4:48 PM CDT | Mesoscale Discussion | SPC | Benton, Boone, Carroll, Clark, Crawford, Franklin and 21 more | 87 min |
Nearby
Severe Thunderstorm Watches in Arkansas, 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.