Alert archive / Arkansas / Mesoscale Discussions in 2019
Mesoscale Discussion 87
The Storm Prediction Center issued this mesoscale discussion at Feb 7, 2019, 5:23 AM CST for 4 states. It was in force for 67 min.
The area
The outline as issued.
The facts
- Issued
- Feb 7, 2019, 5:23 AM CST (11:23 UTC)
- Expired
- Feb 7, 2019, 6:30 AM CST
- In force
- 67 min
- Issued by
- the Storm Prediction Center
All 41 counties
Baxter County, AR, Clay County, AR, Cleburne County, AR, Conway County, AR, Franklin County, AR, Fulton County, AR, Izard County, AR, Johnson County, AR, Lawrence County, AR, Logan County, AR, Marion County, AR, Montgomery County, AR, Newton County, AR, Polk County, AR, Pope County, AR, Randolph County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Sevier County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, Yell County, AR, Bollinger County, MO, Butler County, MO, Carter County, MO, Oregon County, MO, Ripley County, MO, Stoddard County, MO, Wayne County, MO, Choctaw County, OK, McCurtain County, OK, Delta County, TX, Franklin County, TX, Hopkins County, TX, Hunt County, TX, Lamar County, TX, Rains County, TX, Red River County, TX, Rockwall County, TX
The radar
The Little Rock radar (KLZK), 90 km from the middle of the area, began a volume at 11:24 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 nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 11.4 hours before the alert went out and 203 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
- 425 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 399 m²/s²
- 0-3 km storm-relative helicity
- 372 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 |
|---|---|---|---|---|
| Feb 7, 1:55 AM CST | Mesoscale Discussion | SPC | Baxter, Crawford, Franklin, Izard, Johnson, Logan and 9 more | 65 min |
| Feb 7, 2:21 AM CST | Severe Thunderstorm Watch | SPC | Baxter, Boone, Carroll, Cleburne, Conway, Crawford and 20 more | 6 hr |
| Feb 7, 3:36 AM CST | Mesoscale Discussion | SPC | Howard, Little River, Montgomery, Pike, Polk, Sevier | 54 min |
| Feb 7, 7:11 AM CST | Mesoscale Discussion | SPC | Clay, Cleburne, Craighead, Crittenden, Cross, Faulkner and 16 more | 64 min |
| Feb 6, 7:51 PM CST | Mesoscale Discussion | SPC | Bates, Buchanan, Cass, Clay, Clinton, Henry and 8 more | 6 hr |
| Feb 6, 9:06 PM CST | Mesoscale Discussion | SPC | Barry, Barton, Cedar, Dade, Greene, Jasper and 6 more | 114 min |
| Feb 6, 9:33 PM CST | Mesoscale Discussion | SPC | Adair, Andrew, Atchison, Boone, Carroll, Chariton and 26 more | 6 hr |
| Feb 6, 11:33 PM CST | Mesoscale Discussion | SPC | Barry, Christian, Douglas, Greene, Howell, Lawrence and 5 more | 87 min |
| Feb 7, 12:50 AM CST | Mesoscale Discussion | SPC | Carter, Dent, Douglas, Howell, Reynolds, Shannon and 1 more | 55 min |
| Feb 7, 9:26 AM CST | Mesoscale Discussion | SPC | Mississippi, New Madrid, Pemiscot | 94 min |
| Feb 6, 10:16 PM CST | Mesoscale Discussion | SPC | Caddo, Canadian, Carter, Cleveland, Comanche, Cotton and 15 more | 119 min |
Nearby
Mesoscale Discussions in Arkansas, 2019Mesoscale Discussions in Texas, 2019Mesoscale Discussions in Missouri, 2019Every mesoscale discussion in 2019
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.