Alert archive / Missouri / Mesoscale Discussions in 2026
Mesoscale Discussion 2049
The Storm Prediction Center issued this mesoscale discussion at Aug 19, 2026, 11:04 PM CDT for 5 states. It was in force for 86 min.
The area
The outline as issued.
The facts
- Issued
- Aug 19, 2026, 11:04 PM CDT (04:04 UTC)
- Expired
- Aug 20, 2026, 12:30 AM CDT
- In force
- 86 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe thunderstorm watch 602
All 52 counties
Baxter County, AR, Clay County, AR, Fulton County, AR, Greene County, AR, Izard County, AR, Lawrence County, AR, Randolph County, AR, Sharp County, AR, Alexander County, IL, Massac County, IL, Pope County, IL, Pulaski County, IL, Ballard County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Crittenden County, KY, Fulton County, KY, Graves County, KY, Hickman County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, Trigg County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Dunklin County, MO, Howell County, MO, Mississippi County, MO, New Madrid County, MO, Oregon County, MO, Pemiscot County, MO, Reynolds County, MO, Ripley County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Texas County, MO, Wayne County, MO, Benton County, TN, Carroll County, TN, Dyer County, TN, Gibson County, TN, Henry County, TN, Houston County, TN, Lake County, TN, Obion County, TN, Stewart County, TN, Weakley County, TN
The radar
The Paducah radar (KPAH), 127 km from the middle of the area, began a volume at 04:08 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
Little Rock, AR (KLZK), launched 00:00Z, 4.1 hours before the alert went out and 201 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
- 659 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 2822 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 |
|---|---|---|---|---|
| Aug 19, 9:42 PM CDT | Severe Thunderstorm Watch | SPC | Baxter, Clay, Fulton, Greene, Izard, Lawrence and 2 more | 7 hr |
| Aug 20, 1:49 AM CDT | Mesoscale Discussion | SPC | Clay, Greene | 86 min |
| Aug 20, 3:33 PM CDT | Mesoscale Discussion | SPC | Ashley, Bradley, Chicot, Desha, Drew, Lincoln | 117 min |
| Aug 20, 5:08 PM CDT | Severe Thunderstorm Watch | SPC | Ashley, Chicot | 7 hr |
| Aug 20, 6:07 PM CDT | Mesoscale Discussion | SPC | Clark, Hempstead, Howard, Lafayette, Little River, Miller and 6 more | 2 hr |
| Aug 19, 8:52 PM CDT | Mesoscale Discussion | SPC | Alexander, Clay, Clinton, Edwards, Franklin, Gallatin and 21 more | 83 min |
| Aug 20, 12:08 AM CDT | Severe Thunderstorm Watch | SPC | Allen, Butler, Logan, Simpson, Warren | 6 hr |
| Aug 20, 5:26 AM CDT | Mesoscale Discussion | SPC | Benton, Cheatham, Davidson, Dickson, Houston, Humphreys and 6 more | 64 min |
Nearby
Mesoscale Discussions in Missouri, 2026Mesoscale Discussions in Kentucky, 2026Mesoscale Discussions in Tennessee, 2026Every mesoscale discussion in 2026
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.