Alert archive / Oklahoma / Mesoscale Discussions in 2016
Mesoscale Discussion 617
The Storm Prediction Center issued this mesoscale discussion at May 12, 2016, 2:12 AM CDT for 6 counties in Oklahoma; Clay County, Montague County, Wichita County, Texas. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- May 12, 2016, 2:12 AM CDT (07:12 UTC)
- Expired
- May 12, 2016, 3:45 AM CDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
Counties Carter County, OK, Comanche County, OK, Cotton County, OK, Jefferson County, OK, Stephens County, OK, Tillman County, OK, Clay County, TX, Montague County, TX, Wichita County, TX
The radar
The Altus AFB radar (KFDR), 56 km from the middle of the area, began a volume at 07:16 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
Norman, OK (KOUN), launched 00:00Z, 7.2 hours before the alert went out and 128 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
- 1887 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 1366 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 5.2
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 8:11 PM CDT | Mesoscale Discussion | SPC | Adair, Atoka, Bryan, Carter, Cherokee, Cleveland and 33 more | 3 hr |
| May 11, 10:13 PM CDT | Mesoscale Discussion | SPC | Beckham, Greer, Harmon, Jackson, Kiowa, Tillman | 92 min |
| May 11, 10:13 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Carter, Cherokee, Choctaw, Cleveland, Coal and 21 more | 7 hr |
| May 11, 11:46 PM CDT | Mesoscale Discussion | SPC | Atoka, Carter, Coal, Garvin, Haskell, Hughes and 10 more | 119 min |
| May 12, 2:48 AM CDT | Mesoscale Discussion | SPC | Choctaw, LeFlore, McCurtain, Pushmataha | 87 min |
| May 11, 7:11 PM CDT | Mesoscale Discussion | SPC | Callahan, Eastland, Erath, Fisher, Haskell, Hood and 13 more | 94 min |
| May 11, 9:52 PM CDT | Mesoscale Discussion | SPC | Brown, Callahan, Coleman, Comanche, Eastland, Erath and 15 more | 53 min |
| May 11, 10:55 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Callahan, Coke, Coleman, Fisher, Jones and 4 more | 6 hr |
| May 12, 3:35 AM CDT | Mesoscale Discussion | SPC | Brown, Callahan, Coleman, Comanche, Eastland, Erath and 9 more | 85 min |
Nearby
Mesoscale Discussions in Oklahoma, 2016Mesoscale Discussions in Texas, 2016Every mesoscale discussion in 2016
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.