Alert archive / Arkansas / Mesoscale Discussions in 2022
Mesoscale Discussion 628
The Storm Prediction Center issued this mesoscale discussion at May 2, 2022, 7:27 PM CDT for 18 counties in Arkansas; 4 counties in Oklahoma. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- May 2, 2022, 7:27 PM CDT (00:27 UTC)
- Expired
- May 2, 2022, 9:00 PM CDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
- Concerning
- Tornado watch 172
All 22 counties
Clark County, AR, Conway County, AR, Crawford County, AR, Faulkner County, AR, Franklin County, AR, Garland County, AR, Hot Spring County, AR, Johnson County, AR, Logan County, AR, Montgomery County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pulaski County, AR, Saline County, AR, Scott County, AR, Sebastian County, AR, Yell County, AR, Haskell County, OK, Latimer County, OK, LeFlore County, OK, Sequoyah County, OK
The radar
The Western Arkansas radar (KSRX), 67 km from the middle of the area, began a volume at 00:28 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.
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 0.5 hours before the alert went out and 228 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 991 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 214 m²/s²
- 0-3 km storm-relative helicity
- 355 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 9:53 PM CDT | Mesoscale Discussion | SPC | Clark, Conway, Crawford, Dallas, Faulkner, Franklin and 16 more | 97 min |
| May 2, 10:40 PM CDT | Severe Thunderstorm Watch | SPC | Baxter, Boone, Clark, Cleburne, Conway, Dallas and 28 more | 4 hr |
| May 3, 12:54 AM CDT | Mesoscale Discussion | SPC | Clark, Cleburne, Conway, Dallas, Faulkner, Garland and 15 more | 66 min |
| May 2, 8:20 PM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Cherokee, Choctaw, Cleveland and 28 more | 85 min |
| May 2, 8:42 PM CDT | Severe Thunderstorm Watch | SPC | Atoka, Bryan, Choctaw, Coal, Johnston, Love and 3 more | 5 hr |
| May 2, 11:51 PM CDT | Mesoscale Discussion | SPC | Choctaw, McCurtain | 84 min |
Nearby
Mesoscale Discussions in Arkansas, 2022Mesoscale Discussions in Oklahoma, 2022Every mesoscale discussion in 2022
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.