Alert archive / Missouri / Mesoscale Discussions in 2009
Mesoscale Discussion 972
The Storm Prediction Center issued this mesoscale discussion at Jun 7, 2009, 12:18 PM CDT for 32 counties in Missouri. It was in force for 57 min.
The area
The outline as issued.
The facts
- Issued
- Jun 7, 2009, 12:18 PM CDT (17:18 UTC)
- Expired
- Jun 7, 2009, 1:15 PM CDT
- In force
- 57 min
- Issued by
- the Storm Prediction Center
All 32 counties
Audrain County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Chariton County, MO, Cole County, MO, Cooper County, MO, Crawford County, MO, Dent County, MO, Franklin County, MO, Gasconade County, MO, Howard County, MO, Iron County, MO, Laclede County, MO, Maries County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Osage County, MO, Pettis County, MO, Phelps County, MO, Pulaski County, MO, Randolph County, MO, Reynolds County, MO, Saline County, MO, Texas County, MO, Warren County, MO, Washington County, MO, Wright County, MO
The radar
The St Louis radar (KLSX), 113 km from the middle of the area, began a volume at 17:21 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
Topeka, KS (KTOP), launched 12:00Z, 5.3 hours before the alert went out and 327 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
- 1088 J/kg
- Mixed-layer CIN
- -394 J/kg
- Mixed-layer LCL
- 689 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 276 m²/s²
- 0-3 km storm-relative helicity
- 191 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 11:16 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Andrew, Atchison, Buchanan, Caldwell, Carroll and 20 more | 6 hr |
| Jun 7, 12:44 AM CDT | Mesoscale Discussion | SPC | Adair, Andrew, Atchison, Buchanan, Caldwell, Carroll and 22 more | 61 min |
| Jun 7, 4:45 AM CDT | Mesoscale Discussion | SPC | Adair, Andrew, Atchison, Buchanan, Caldwell, Carroll and 26 more | 30 min |
| Jun 7, 2:36 PM CDT | Mesoscale Discussion | SPC | Andrew, Atchison, Buchanan, Holt, Nodaway | 114 min |
| Jun 7, 3:45 PM CDT | Tornado Watch | SPC | Andrew, Atchison, Buchanan, Caldwell, Clay, Clinton and 10 more | 7 hr |
| Jun 7, 5:31 PM CDT | Mesoscale Discussion | SPC | Adair, Bates, Benton, Boone, Camden, Carroll and 31 more | 59 min |
| Jun 7, 5:44 PM CDT | Tornado Watch | SPC | Adair, Bates, Carroll, Cass, Chariton, Cooper and 15 more | 6 hr |
Nearby
Mesoscale Discussions in Missouri, 2009Every mesoscale discussion in 2009
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.