Alert archive / Kansas / Mesoscale Discussions in 2004
Mesoscale Discussion 1492
The Storm Prediction Center issued this mesoscale discussion at Jul 4, 2004, 1:45 AM CDT for 37 counties in Kansas. It was in force for 90 min.
The area
The outline as issued.
The facts
- Issued
- Jul 4, 2004, 1:45 AM CDT (06:45 UTC)
- Expired
- Jul 4, 2004, 3:15 AM CDT
- In force
- 90 min
- Issued by
- the Storm Prediction Center
All 37 counties
Atchison County, KS, Barton County, KS, Brown County, KS, Chase County, KS, Clay County, KS, Coffey County, KS, Dickinson County, KS, Douglas County, KS, Ellis County, KS, Ellsworth County, KS, Geary County, KS, Gove County, KS, Jackson County, KS, Jefferson County, KS, Lane County, KS, Lincoln County, KS, Logan County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Morris County, KS, Nemaha County, KS, Ness County, KS, Osage County, KS, Pawnee County, KS, Pottawatomie County, KS, Rice County, KS, Riley County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Scott County, KS, Shawnee County, KS, Trego County, KS, Wabaunsee County, KS, Washington County, KS
The radar
The Topeka radar (KTWX), 123 km from the middle of the area, began a volume at 06:46 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 6.8 hours before the alert went out and 175 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
- 1692 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 1284 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.4
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 |
|---|---|---|---|---|
| Jul 3, 9:41 PM CDT | Mesoscale Discussion | SPC | Clay, Cloud, Ellis, Gove, Graham, Jewell and 14 more | 64 min |
| Jul 3, 10:10 PM CDT | Severe Thunderstorm Watch | SPC | Atchison, Brown, Chase, Clay, Cloud, Coffey and 20 more | 6 hr |
| Jul 3, 10:25 PM CDT | Severe Thunderstorm Watch | SPC | Barton, Dickinson, Ellis, Ellsworth, Geary, Gove and 17 more | 6 hr |
| Jul 4, 2:55 AM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Barber, Barton, Butler, Chase and 40 more | 5 hr |
| Jul 4, 5:05 AM CDT | Severe Thunderstorm Watch | SPC | Bourbon, Chautauqua, Cherokee, Crawford, Labette, Montgomery and 1 more | 5 hr |
| Jul 4, 6:08 AM CDT | Mesoscale Discussion | SPC | Bourbon, Cherokee, Crawford, Labette, Montgomery, Neosho | 2 hr |
| Jul 4, 6:09 AM CDT | Mesoscale Discussion | SPC | Bourbon, Cherokee, Crawford, Labette, Montgomery, Neosho | 2 hr |
| Jul 4, 2:15 PM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Decatur, Gove, Grant, Greeley, Hamilton and 12 more | 8 hr |
| Jul 4, 3:21 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Clark, Comanche, Edwards, Ford and 10 more | 84 min |
| Jul 4, 3:40 PM CDT | Severe Thunderstorm Watch | SPC | Barber, Barton, Clark, Comanche, Edwards, Ellis and 16 more | 6 hr |
| Jul 4, 5:24 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Finney, Gove, Grant, Greeley and 16 more | 96 min |
Nearby
Mesoscale Discussions in Kansas, 2004Every mesoscale discussion in 2004
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.