Alert archive / Missouri / Mesoscale Discussions in 2017
Mesoscale Discussion 585
The Storm Prediction Center issued this mesoscale discussion at Apr 28, 2017, 11:55 PM CDT for 4 states. It was in force for 95 min.
The area
The outline as issued.
The facts
- Issued
- Apr 28, 2017, 11:55 PM CDT (04:55 UTC)
- Expired
- Apr 29, 2017, 1:30 AM CDT
- In force
- 95 min
- Issued by
- the Storm Prediction Center
All 69 counties
Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Clay County, AR, Crawford County, AR, Franklin County, AR, Fulton County, AR, Izard County, AR, Johnson County, AR, Madison County, AR, Marion County, AR, Newton County, AR, Randolph County, AR, Searcy County, AR, Sharp County, AR, Stone County, AR, Washington County, AR, Alexander County, IL, Franklin County, IL, Gallatin County, IL, Hardin County, IL, Jackson County, IL, Johnson County, IL, Massac County, IL, Pope County, IL, Pulaski County, IL, Saline County, IL, Union County, IL, Williamson County, IL, Ballard County, KY, Carlisle County, KY, Crittenden County, KY, Fulton County, KY, Graves County, KY, Hickman County, KY, Livingston County, KY, Marshall County, KY, McCracken County, KY, Union County, KY, Barry County, MO, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Christian County, MO, Dent County, MO, Douglas County, MO, Howell County, MO, Iron County, MO, Madison County, MO, Mississippi County, MO, New Madrid County, MO, Oregon County, MO, Ozark County, MO, Perry County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Wayne County, MO, Webster County, MO, Wright County, MO
The radar
The Springfield radar (KSGF), 171 km from the middle of the area, began a volume at 04:59 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, 4.9 hours before the alert went out and 200 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
- 65 J/kg
- Mixed-layer CIN
- -331 J/kg
- Mixed-layer LCL
- 506 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 72 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 |
|---|---|---|---|---|
| Apr 28, 10:01 PM CDT | Severe Thunderstorm Watch | SPC | Baxter, Benton, Boone, Carroll, Crawford, Franklin and 8 more | 9 hr |
| Apr 28, 10:49 PM CDT | Mesoscale Discussion | SPC | Johnson, Logan, Pope, Searcy, Van Buren | 56 min |
| Apr 29, 3:39 AM CDT | Mesoscale Discussion | SPC | Benton, Boone, Carroll, Madison, Washington | 96 min |
| Apr 29, 1:11 PM CDT | Mesoscale Discussion | SPC | Benton, Conway, Crawford, Franklin, Garland, Hot Spring and 15 more | 2 hr |
| Apr 29, 5:36 PM CDT | Severe Thunderstorm Watch | SPC | Baxter, Boone, Carroll, Crawford, Franklin, Fulton and 9 more | 4 hr |
| Apr 29, 6:21 PM CDT | Mesoscale Discussion | SPC | Arkansas, Bradley, Calhoun, Chicot, Cleveland, Craighead and 20 more | 54 min |
| Apr 29, 12:50 PM CDT | Mesoscale Discussion | SPC | Monroe, Randolph, Saint Clair | 85 min |
| Apr 29, 3:28 PM CDT | Mesoscale Discussion | SPC | Bond, Clay, Clinton, Crawford, Edwards, Effingham and 20 more | 2 hr |
| Apr 29, 3:57 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Bond, Christian, Clark, Clay, Clinton and 38 more | 6 hr |
| Apr 29, 6:30 PM CDT | Mesoscale Discussion | SPC | Alexander, Clark, Clay, Coles, Crawford, Cumberland and 25 more | 60 min |
| Apr 28, 7:10 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Campbell, Carroll, Gallatin, Grant, Kenton and 2 more | 6 hr |
| Apr 28, 8:27 PM CDT | Tornado Watch | SPC | Breckinridge, Bullitt, Daviess, Hancock, Hardin, Henderson and 8 more | 5 hr |
| Apr 28, 10:19 PM CDT | Mesoscale Discussion | SPC | Boone, Boyd, Bracken, Campbell, Carroll, Carter and 19 more | 116 min |
| Apr 29, 12:50 AM CDT | Mesoscale Discussion | SPC | Boone, Bracken, Breckinridge, Bullitt, Campbell, Carroll and 24 more | 85 min |
| Apr 29, 6:23 AM CDT | Mesoscale Discussion | SPC | Anderson, Boone, Bourbon, Bracken, Bullitt, Campbell and 28 more | 3 hr |
Nearby
Mesoscale Discussions in Missouri, 2017Mesoscale Discussions in Arkansas, 2017Mesoscale Discussions in Illinois, 2017Every mesoscale discussion in 2017
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.