Alert archive / Oklahoma / Mesoscale Discussions in 2013
Mesoscale Discussion 419
The Storm Prediction Center issued this mesoscale discussion at Apr 9, 2013, 9:01 PM CDT for 5 states. It was in force for 89 min.
The area
The outline as issued.
The facts
- Issued
- Apr 9, 2013, 9:01 PM CDT (02:01 UTC)
- Expired
- Apr 9, 2013, 10:30 PM CDT
- In force
- 89 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 82 counties
Benton County, AR, Carroll County, AR, Crawford County, AR, Madison County, AR, Sebastian County, AR, Washington County, AR, Allen County, KS, Anderson County, KS, Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Franklin County, KS, Johnson County, KS, Labette County, KS, Linn County, KS, Miami County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Barry County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Cass County, MO, Cedar County, MO, Cooper County, MO, Dade County, MO, Dallas County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Lafayette County, MO, Lawrence County, MO, McDonald County, MO, Morgan County, MO, Newton County, MO, Pettis County, MO, Polk County, MO, Ray County, MO, St. Clair County, MO, Stone County, MO, Vernon County, MO, Adair County, OK, Atoka County, OK, Bryan County, OK, Carter County, OK, Cherokee County, OK, Choctaw County, OK, Coal County, OK, Craig County, OK, Delaware County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Love County, OK, Marshall County, OK, Mayes County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa County, OK, Pittsburg County, OK, Pontotoc County, OK, Pushmataha County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK, Cooke County, TX, Fannin County, TX, Grayson County, TX, Lamar County, TX
The radar
The Tulsa radar (KINX), 30 km from the middle of the area, began a volume at 02:01 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 nearest sounding before it
Lamont, OK (KLMN), launched 00:00Z, 2.0 hours before the alert went out and 179 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 541 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 378 m²/s²
- 0-3 km storm-relative helicity
- 508 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 11.1
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 10, 1:03 PM CDT | Mesoscale Discussion | SPC | Arkansas, Baxter, Bradley, Calhoun, Clark, Clay and 50 more | 117 min |
| Apr 10, 1:20 PM CDT | Tornado Watch | SPC | Arkansas, Ashley, Baxter, Bradley, Calhoun, Chicot and 56 more | 10 hr |
| Apr 10, 3:01 PM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Baxter, Bradley, Calhoun, Clark and 47 more | 119 min |
| Apr 10, 5:42 PM CDT | Tornado Watch | SPC | Ashley, Chicot, Union | 7 hr |
| Apr 10, 6:09 PM CDT | Mesoscale Discussion | SPC | Arkansas, Baxter, Bradley, Calhoun, Clay, Cleburne and 33 more | 96 min |
| Apr 9, 7:22 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Clark, Cloud, Comanche, Edwards and 13 more | 2 hr |
| Apr 9, 8:41 PM CDT | Mesoscale Discussion | SPC | Brown, Clay, Cloud, Dickinson, Geary, Jackson and 10 more | 64 min |
| Apr 9, 8:51 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Butler, Chase, Comanche, Cowley and 16 more | 54 min |
| Apr 9, 11:27 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Brown, Butler, Chase, Clay and 32 more | 63 min |
| Apr 10, 5:32 AM CDT | Mesoscale Discussion | SPC | Barber, Butler, Chase, Cowley, Dickinson, Greenwood and 13 more | 4 hr |
| Apr 10, 1:46 PM CDT | Tornado Watch | SPC | Bollinger, Butler, Cape Girardeau, Carter, Crawford, Dent and 24 more | 7 hr |
| Apr 10, 6:52 PM CDT | Severe Thunderstorm Watch | SPC | Lincoln, Marion, Montgomery, Pike, Ralls, Warren | 7 hr |
| Apr 9, 7:28 PM CDT | Mesoscale Discussion | SPC | Callahan, Eastland, Jack, Palo Pinto, Shackelford, Stephens and 3 more | 62 min |
| Apr 10, 4:46 PM CDT | Mesoscale Discussion | SPC | Newton | 119 min |
Nearby
Mesoscale Discussions in Oklahoma, 2013Mesoscale Discussions in Missouri, 2013Mesoscale Discussions in Kansas, 2013Every mesoscale discussion 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.