Alert archive / Kansas / Severe Thunderstorm Watches in 2017
Severe Thunderstorm Watch 144
The Storm Prediction Center issued this severe thunderstorm watch at Apr 15, 2017, 4:00 PM CDT for 10 counties in Kansas; 5 counties in Oklahoma; Lipscomb County, Texas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 15, 2017, 4:00 PM CDT (21:00 UTC)
- Expired
- Apr 15, 2017, 10:53 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 60 kt
Counties Barber County, KS, Clark County, KS, Comanche County, KS, Edwards County, KS, Ford County, KS, Hodgeman County, KS, Kiowa County, KS, Pawnee County, KS, Pratt County, KS, Stafford County, KS, Beaver County, OK, Ellis County, OK, Harper County, OK, Woods County, OK, Woodward County, OK, Lipscomb County, TX
The radar
The Dodge City radar (KDDC), 70 km from the middle of the area, began a volume at 20:59 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
- 10%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 7:02 PM CDT | Severe Thunderstorm Warning | DDC | Comanche, Kiowa | 43 min |
| Apr 15, 7:11 PM CDT | Severe Thunderstorm Warning | DDC | Pawnee | 49 min |
| Apr 15, 7:37 PM CDT | Severe Thunderstorm Warning | DDC | Comanche | 53 min |
| Apr 15, 7:53 PM CDT | Severe Thunderstorm Warning | DDC | Pawnee | 52 min |
| Apr 15, 8:01 PM CDT | Tornado Warning | DDC | Comanche | 29 min |
| Apr 15, 8:17 PM CDT | Severe Thunderstorm Warning | DDC | Pawnee | 43 min |
| Apr 15, 8:31 PM CDT | Severe Thunderstorm Warning | DDC | Barber, Comanche | 44 min |
| Apr 15, 8:55 PM CDT | Severe Thunderstorm Warning | DDC | Pawnee, Stafford | 50 min |
| Apr 15, 9:22 PM CDT | Severe Thunderstorm Warning | DDC | Pawnee | 38 min |
| Apr 15, 9:43 PM CDT | Severe Thunderstorm Warning | DDC | Pawnee | 47 min |
| Apr 15, 9:53 PM CDT | Flash Flood Warning | DDC | Pawnee | 4 hr |
| Apr 15, 10:05 PM CDT | Severe Thunderstorm Warning | DDC | Edwards, Pawnee, Stafford | 55 min |
| Apr 15, 10:12 PM CDT | Severe Thunderstorm Warning | DDC | Pawnee, Rush | 24 min |
| Apr 15, 10:50 PM CDT | Flash Flood Warning | DDC | Edwards, Pawnee, Pratt, Stafford | 4 hr |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 9.0 hours before the alert went out and 308 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
- 661 J/kg
- Mixed-layer CIN
- -358 J/kg
- Mixed-layer LCL
- 1199 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 227 m²/s²
- 0-3 km storm-relative helicity
- 282 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 9:17 PM CDT | Mesoscale Discussion | SPC | Jewell, Norton, Phillips, Republic, Smith | 88 min |
| Apr 15, 3:32 PM CDT | Mesoscale Discussion | SPC | Clark, Comanche, Kiowa | 88 min |
| Apr 15, 4:30 PM CDT | Mesoscale Discussion | SPC | Atchison, Barton, Clay, Dickinson, Ellsworth, Geary and 14 more | 90 min |
| Apr 15, 5:05 PM CDT | Severe Thunderstorm Watch | SPC | Atchison, Brown, Clay, Dickinson, Doniphan, Geary and 10 more | 7 hr |
| Apr 14, 8:37 PM CDT | Mesoscale Discussion | SPC | Bailey, Castro, Deaf Smith, Hale, Lamb, Parmer and 2 more | 113 min |
Nearby
Severe Thunderstorm Watches in Kansas, 2017Severe Thunderstorm Watches in Oklahoma, 2017Severe Thunderstorm Watches in Texas, 2017Every severe thunderstorm watch in 2017
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.