Alert archive / Arkansas / Tornado Watches in 2024
Tornado Watch 156
The Storm Prediction Center issued this tornado watch at Apr 28, 2024, 1:03 AM CDT for 7 counties in Arkansas; 7 counties in Oklahoma. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 28, 2024, 1:03 AM CDT (06:03 UTC)
- Expired
- Apr 28, 2024, 7:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
Counties Benton County, AR, Carroll County, AR, Crawford County, AR, Franklin County, AR, Madison County, AR, Sebastian County, AR, Washington County, AR, Adair County, OK, Choctaw County, OK, Haskell County, OK, Latimer County, OK, LeFlore County, OK, Pushmataha County, OK, Sequoyah County, OK
The radar
The Western Arkansas radar (KSRX), 20 km from the middle of the area, began a volume at 06:03 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
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 10%
- 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 |
|---|---|---|---|---|
| Apr 28, 1:11 AM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee, Haskell, McIntosh, Muskogee, Sequoyah and 1 more | 64 min |
| Apr 28, 1:32 AM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee, Delaware | 43 min |
| Apr 28, 1:45 AM CDT | Severe Thunderstorm Warning | TSA | Haskell, Latimer, McIntosh, Pittsburg | 60 min |
| Apr 28, 1:51 AM CDT | Tornado Warning | TSA | Benton | 39 min |
| Apr 28, 2:00 AM CDT | Severe Thunderstorm Warning | TSA | Benton, Washington | 60 min |
| Apr 28, 2:12 AM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee, Haskell, Muskogee, Sequoyah | 63 min |
| Apr 28, 3:02 AM CDT | Severe Thunderstorm Warning | TSA | Crawford, Washington | 43 min |
| Apr 28, 3:40 AM CDT | Severe Thunderstorm Warning | TSA | Crawford, Washington | 50 min |
| Apr 28, 4:11 AM CDT | Severe Thunderstorm Warning | TSA | Latimer, LeFlore, Pushmataha | 49 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 00:00Z, 6.1 hours before the alert went out and 176 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
- 937 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 939 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 208 m²/s²
- 0-3 km storm-relative helicity
- 272 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 10.5
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 12:32 AM CDT | Mesoscale Discussion | SPC | Benton, Carroll, Crawford, Madison, Sebastian, Washington | 88 min |
| Apr 28, 4:11 AM CDT | Mesoscale Discussion | SPC | Benton, Carroll, Crawford, Franklin, Johnson, Logan and 6 more | 64 min |
| Apr 28, 3:38 PM CDT | Mesoscale Discussion | SPC | Benton, Crawford, Franklin, Madison, Polk, Scott and 3 more | 2 hr |
| Apr 28, 5:15 PM CDT | Tornado Watch | SPC | Benton, Carroll, Crawford, Franklin, Johnson, Logan and 5 more | 6 hr |
| Apr 28, 6:13 PM CDT | Mesoscale Discussion | SPC | Columbia, Lafayette, Miller, Union | 62 min |
| Apr 28, 6:42 PM CDT | Tornado Watch | SPC | Bradley, Calhoun, Columbia, Lafayette, Ouachita, Union | 8 hr |
| Apr 28, 6:50 PM CDT | Mesoscale Discussion | SPC | Benton, Crawford, Madison, Washington | 55 min |
| Apr 27, 7:30 PM CDT | Mesoscale Discussion | SPC | Adair, Caddo, Canadian, Carter, Cherokee, Cleveland and 39 more | 60 min |
| Apr 27, 7:50 PM CDT | Tornado Watch | SPC | Atoka, Bryan, Caddo, Canadian, Carter, Cherokee and 42 more | 7 hr |
| Apr 27, 11:33 PM CDT | Mesoscale Discussion | SPC | Atoka, Coal, Creek, Delaware, Hughes, Johnston and 14 more | 72 min |
| Apr 28, 1:54 AM CDT | Mesoscale Discussion | SPC | Ottawa | 66 min |
Nearby
Tornado Watches in Arkansas, 2024Tornado Watches in Oklahoma, 2024Every tornado watch in 2024
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.