Alert archive / Kansas / Severe Thunderstorm Watches in 2008
Severe Thunderstorm Watch 270
The Storm Prediction Center issued this severe thunderstorm watch at May 6, 2008, 7:08 PM CDT for 37 counties in Kansas; 13 counties in Nebraska. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 6, 2008, 7:08 PM CDT (00:08 UTC)
- Expired
- May 7, 2008, 1:33 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 50 counties
Allen County, KS, Barton County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Clay County, KS, Cloud County, KS, Dickinson County, KS, Elk County, KS, Ellsworth County, KS, Geary County, KS, Greenwood County, KS, Harvey County, KS, Jewell County, KS, Labette County, KS, Lincoln County, KS, Marion County, KS, McPherson County, KS, Mitchell County, KS, Montgomery County, KS, Morris County, KS, Neosho County, KS, Osborne County, KS, Ottawa County, KS, Phillips County, KS, Reno County, KS, Republic County, KS, Rice County, KS, Riley County, KS, Rooks County, KS, Russell County, KS, Saline County, KS, Sedgwick County, KS, Smith County, KS, Washington County, KS, Wilson County, KS, Woodson County, KS, Adams County, NE, Clay County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Harlan County, NE, Jefferson County, NE, Kearney County, NE, Nuckolls County, NE, Saline County, NE, Seward County, NE, Thayer County, NE, Webster County, NE
The radar
The Grand Island radar (KUEX), 88 km from the middle of the area, began a volume at 00:11 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 7:30 PM CDT | Severe Thunderstorm Warning | ICT | Reno, Rice | 60 min |
| May 6, 7:45 PM CDT | Severe Thunderstorm Warning | GID | Furnas, Gosper | 45 min |
| May 6, 8:11 PM CDT | Severe Thunderstorm Warning | ICT | Kingman, Reno | 34 min |
| May 6, 8:28 PM CDT | Severe Thunderstorm Warning | GID | Phillips | 38 min |
| May 6, 8:33 PM CDT | Severe Thunderstorm Warning | GID | Kearney | 27 min |
| May 6, 8:58 PM CDT | Severe Thunderstorm Warning | GID | Adams, Franklin, Kearney, Webster | 47 min |
| May 6, 9:48 PM CDT | Severe Thunderstorm Warning | GID | Jewell, Mitchell, Smith | 42 min |
| May 6, 10:00 PM CDT | Severe Thunderstorm Warning | ICT | Harvey, Kingman, Reno, Sedgwick | 60 min |
| May 6, 10:32 PM CDT | Severe Thunderstorm Warning | ICT | Harvey, Sedgwick, Sumner | 58 min |
| May 6, 11:01 PM CDT | Severe Thunderstorm Warning | ICT | Butler, Cowley | 59 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 0.1 hours before the alert went out and 220 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
- 182 J/kg
- Mixed-layer CIN
- -175 J/kg
- Mixed-layer LCL
- 684 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 169 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 9:59 PM CDT | Mesoscale Discussion | SPC | Barber, Butler, Chase, Clay, Cloud, Comanche and 26 more | 61 min |
| May 7, 9:52 AM CDT | Mesoscale Discussion | SPC | Cherokee | 83 min |
| May 6, 9:13 PM CDT | Mesoscale Discussion | SPC | Cass, Douglas, Gage, Johnson, Lancaster, Nemaha and 4 more | 62 min |
Nearby
Severe Thunderstorm Watches in Kansas, 2008Severe Thunderstorm Watches in Nebraska, 2008Every severe thunderstorm watch in 2008
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.