Alert archive / Arkansas / Mesoscale Discussions in 2018
Mesoscale Discussion 627
The Storm Prediction Center issued this mesoscale discussion at Jun 2, 2018, 3:42 PM CDT for 4 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 2, 2018, 3:42 PM CDT (20:42 UTC)
- Expired
- Jun 2, 2018, 5:45 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 78 counties
Arkansas County, AR, Baxter County, AR, Boone County, AR, Clay County, AR, Cleburne County, AR, Conway County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Faulkner County, AR, Fulton County, AR, Garland County, AR, Grant County, AR, Greene County, AR, Hot Spring County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Johnson County, AR, Lawrence County, AR, Lee County, AR, Logan County, AR, Lonoke County, AR, Marion County, AR, Mississippi County, AR, Monroe County, AR, Montgomery County, AR, Newton County, AR, Perry County, AR, Phillips County, AR, Poinsett County, AR, Polk County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline County, AR, Scott County, AR, Searcy County, AR, Sharp County, AR, St. Francis County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Alexander County, IL, Pulaski County, IL, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Dent County, MO, Douglas County, MO, Dunklin County, MO, Howell County, MO, Iron County, MO, Laclede County, MO, Madison County, MO, Mississippi County, MO, New Madrid County, MO, Oregon County, MO, Ozark County, MO, Pemiscot County, MO, Phelps County, MO, Pulaski County, MO, Reynolds County, MO, Ripley County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Taney County, MO, Texas County, MO, Wayne County, MO, Webster County, MO, Wright County, MO, Lake County, TN
The radar
The Little Rock radar (KLZK), 133 km from the middle of the area, began a volume at 20:41 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 12:00Z, 8.7 hours before the alert went out and 142 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
- 2602 J/kg
- Mixed-layer CIN
- -176 J/kg
- Mixed-layer LCL
- 909 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 |
|---|---|---|---|---|
| Jun 2, 1:33 PM CDT | Mesoscale Discussion | SPC | Arkansas, Baxter, Boone, Clark, Clay, Cleburne and 42 more | 117 min |
| Jun 2, 2:19 PM CDT | Severe Thunderstorm Watch | SPC | Arkansas, Baxter, Clay, Cleburne, Conway, Craighead and 42 more | 10 hr |
| Jun 2, 6:31 PM CDT | Mesoscale Discussion | SPC | Baxter, Clay, Cleburne, Conway, Craighead, Cross and 33 more | 89 min |
| Jun 2, 9:12 AM CDT | Mesoscale Discussion | SPC | Clinton, Franklin, Jackson, Jefferson, Monroe, Perry and 5 more | 2 hr |
| Jun 2, 6:55 PM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Coles, Crawford, Cumberland, DeWitt and 15 more | 2 hr |
| Jun 2, 12:50 AM CDT | Mesoscale Discussion | SPC | Andrew, Atchison, Bates, Buchanan, Cass, Clay and 10 more | 55 min |
| Jun 2, 5:48 AM CDT | Severe Thunderstorm Watch | SPC | Barton, Bates, Benton, Camden, Carroll, Cass and 25 more | 4 hr |
Nearby
Mesoscale Discussions in Arkansas, 2018Mesoscale Discussions in Missouri, 2018Mesoscale Discussions in Illinois, 2018Every mesoscale discussion in 2018
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.