Alert archive / Missouri / Mesoscale Discussions in 2003
Mesoscale Discussion 603
The Storm Prediction Center issued this mesoscale discussion at Apr 28, 2003, 2:12 AM CDT for 7 counties in Kansas; 13 counties in Missouri; Nemaha County, Pawnee County, Richardson County, Nebraska. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- Apr 28, 2003, 2:12 AM CDT (07:12 UTC)
- Expired
- Apr 28, 2003, 3:45 AM CDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
All 23 counties
Atchison County, KS, Brown County, KS, Doniphan County, KS, Jackson County, KS, Marshall County, KS, Nemaha County, KS, Pottawatomie County, KS, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Caldwell County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Holt County, MO, Nodaway County, MO, Platte County, MO, Nemaha County, NE, Pawnee County, NE, Richardson County, NE
The radar
The Topeka radar (KTWX), 116 km from the middle of the area, began a volume at 07:15 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 00:00Z, 7.2 hours before the alert went out and 95 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
- 275 J/kg
- Mixed-layer CIN
- -148 J/kg
- Mixed-layer LCL
- 1280 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 194 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
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 |
|---|---|---|---|---|
| Apr 28, 12:09 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Cherokee, Coffey, Crawford and 6 more | 2 hr |
| Apr 28, 5:10 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 22 more | 65 min |
| Apr 28, 5:23 PM CDT | Mesoscale Discussion | SPC | Hamilton, Morton, Stanton | 3 hr |
| Apr 28, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 12 more | 3 hr |
| Apr 28, 2:35 PM CDT | Severe Thunderstorm Watch | SPC | Bollinger, Butler, Camden, Cape Girardeau, Carter, Christian and 35 more | 5 hr |
| Apr 28, 3:56 PM CDT | Mesoscale Discussion | SPC | Bollinger, Butler, Camden, Cape Girardeau, Carter, Christian and 34 more | 2 hr |
Nearby
Mesoscale Discussions in Missouri, 2003Mesoscale Discussions in Kansas, 2003Mesoscale Discussions in Nebraska, 2003Every mesoscale discussion in 2003
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.