Alert archive / Kansas / Mesoscale Discussions in 2004
Mesoscale Discussion 375
The Storm Prediction Center issued this mesoscale discussion at Apr 18, 2004, 5:41 PM CDT for 21 counties in Kansas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 18, 2004, 5:41 PM CDT (22:41 UTC)
- Expired
- Apr 18, 2004, 7:45 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 21 counties
Barton County, KS, Clay County, KS, Cloud County, KS, Edwards County, KS, Ellsworth County, KS, Jewell County, KS, Kiowa County, KS, Lincoln County, KS, Mitchell County, KS, Osborne County, KS, Ottawa County, KS, Pawnee County, KS, Pratt County, KS, Republic County, KS, Rice County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Smith County, KS, Stafford County, KS, Washington County, KS
The radar
The Grand Island radar (KUEX), 157 km from the middle of the area, began a volume at 22:42 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
Dodge City, (KDDC), launched 12:00Z, 10.7 hours before the alert went out and 174 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
- 203 J/kg
- Mixed-layer CIN
- -398 J/kg
- Mixed-layer LCL
- 1390 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 358 m²/s²
- 0-3 km storm-relative helicity
- 340 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 |
|---|---|---|---|---|
| Apr 18, 6:15 PM CDT | Tornado Watch | SPC | Barton, Clay, Cloud, Dickinson, Ellsworth, Geary and 13 more | 5 hr |
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.