Alert archive / Oklahoma / Severe Thunderstorm Watches in 2013
Severe Thunderstorm Watch 320
The Storm Prediction Center issued this severe thunderstorm watch at Jun 17, 2013, 1:02 AM CDT for 12 counties in Kansas; 41 counties in Oklahoma. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 17, 2013, 1:02 AM CDT (06:02 UTC)
- Expired
- Jun 17, 2013, 7:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 53 counties
Allen County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Cowley County, KS, Elk County, KS, Greenwood County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Woodson County, KS, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Carter County, OK, Cleveland County, OK, Comanche County, OK, Cotton County, OK, Creek County, OK, Custer County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Greer County, OK, Harmon County, OK, Hughes County, OK, Jackson County, OK, Jefferson County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, Love County, OK, McClain County, OK, Murray County, OK, Noble County, OK, Nowata County, OK, Okfuskee County, OK, Oklahoma County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Pontotoc County, OK, Pottawatomie County, OK, Seminole County, OK, Stephens County, OK, Tillman County, OK, Tulsa County, OK, Washington County, OK, Washita County, OK
The radar
The Vance AFB radar (KVNX), 88 km from the middle of the area, began a volume at 06:02 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
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
12 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 1:04 AM CDT | Severe Thunderstorm Warning | ICT | Cowley, Sumner | 56 min |
| Jun 17, 1:27 AM CDT | Severe Thunderstorm Warning | OUN | Garfield, Grant, Kay, Kingfisher, Lincoln, Logan and 3 more | 63 min |
| Jun 17, 1:32 AM CDT | Severe Thunderstorm Warning | OUN | Blaine, Caddo, Canadian, Custer, Kingfisher, Washita | 43 min |
| Jun 17, 1:41 AM CDT | Severe Thunderstorm Warning | TSA | Creek, Osage, Pawnee | 64 min |
| Jun 17, 2:16 AM CDT | Severe Thunderstorm Warning | OUN | Caddo, Canadian, Cleveland, Grady, Kingfisher, Lincoln and 6 more | 59 min |
| Jun 17, 2:43 AM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee, Washington | 62 min |
| Jun 17, 2:52 AM CDT | Severe Thunderstorm Warning | OUN | Harmon, Jackson | 53 min |
| Jun 17, 3:16 AM CDT | Severe Thunderstorm Warning | OUN | Caddo, Cleveland, Comanche, Cotton, Garvin, Grady and 7 more | 44 min |
| Jun 17, 3:37 AM CDT | Severe Thunderstorm Warning | OUN | Jackson, Tillman | 53 min |
| Jun 17, 4:19 AM CDT | Severe Thunderstorm Warning | OUN | Comanche, Cotton, Kiowa, Tillman | 41 min |
| Jun 17, 4:54 AM CDT | Severe Thunderstorm Warning | OUN | Cotton, Jefferson, Stephens, Tillman | 66 min |
| Jun 17, 6:16 AM CDT | Severe Thunderstorm Warning | OUN | Love, Marshall | 44 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
Lamont, OK (KLMN), launched 00:00Z, 6.0 hours before the alert went out and 30 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
- 1228 J/kg
- Mixed-layer CIN
- -117 J/kg
- Mixed-layer LCL
- 1392 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 250 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.1
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 8:16 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Clark, Comanche, Edwards, Ellis and 21 more | 59 min |
| Jun 16, 8:40 PM CDT | Severe Thunderstorm Watch | SPC | Barber, Barton, Butler, Chase, Chautauqua, Clark and 35 more | 5 hr |
| Jun 16, 10:58 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Clark, Comanche, Edwards, Ellis and 24 more | 62 min |
| Jun 17, 12:48 AM CDT | Mesoscale Discussion | SPC | Butler, Chautauqua, Cowley, Elk, Greenwood, Sedgwick and 1 more | 117 min |
| Jun 17, 3:21 PM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Grant, Greeley, Hamilton, Kearny, Logan and 8 more | 9 hr |
| Jun 17, 6:09 PM CDT | Mesoscale Discussion | SPC | Greeley, Hamilton, Morton, Stanton, Wallace | 66 min |
| Jun 17, 4:17 AM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Choctaw, Coal, Cotton and 20 more | 118 min |
| Jun 17, 3:54 PM CDT | Severe Thunderstorm Watch | SPC | Cimarron, Texas | 7 hr |
Nearby
Severe Thunderstorm Watches in Oklahoma, 2013Severe Thunderstorm Watches in Kansas, 2013Every severe thunderstorm watch in 2013
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.