Alert archive / Texas / Mesoscale Discussions in 2014
Mesoscale Discussion 391
The Storm Prediction Center issued this mesoscale discussion at Apr 23, 2014, 9:21 PM CDT for 14 counties in Oklahoma; 20 counties in Texas. It was in force for 54 min.
The area
The outline as issued.
The facts
- Issued
- Apr 23, 2014, 9:21 PM CDT (02:21 UTC)
- Expired
- Apr 23, 2014, 10:15 PM CDT
- In force
- 54 min
- Issued by
- the Storm Prediction Center
All 34 counties
Blaine County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Cotton County, OK, Custer County, OK, Grady County, OK, Jackson County, OK, Jefferson County, OK, Kingfisher County, OK, Kiowa County, OK, Stephens County, OK, Tillman County, OK, Washita County, OK, Archer County, TX, Baylor County, TX, Callahan County, TX, Clay County, TX, Eastland County, TX, Fisher County, TX, Haskell County, TX, Jack County, TX, Jones County, TX, Knox County, TX, Nolan County, TX, Palo Pinto County, TX, Shackelford County, TX, Stephens County, TX, Stonewall County, TX, Taylor County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX, Young County, TX
The radar
The Altus AFB radar (KFDR), 64 km from the middle of the area, began a volume at 02:22 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, 2.4 hours before the alert went out and 222 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
- 66 J/kg
- Mixed-layer CIN
- -197 J/kg
- Mixed-layer LCL
- 2053 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 24, 10:25 AM CDT | Mesoscale Discussion | SPC | Craig, Creek, Mayes, Nowata, Okmulgee, Osage and 4 more | 2 hr |
| Apr 24, 1:13 PM CDT | Mesoscale Discussion | SPC | Adair, LeFlore, Sequoyah | 2 hr |
| Apr 24, 2:21 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Cherokee, Choctaw, Delaware, Haskell, Latimer and 6 more | 6 hr |
| Apr 24, 2:38 PM CDT | Severe Thunderstorm Watch | SPC | McCurtain | 9 hr |
| Apr 24, 3:47 PM CDT | Mesoscale Discussion | SPC | Adair, Cherokee, Delaware, Haskell, Latimer, LeFlore and 3 more | 88 min |
| Apr 24, 5:50 PM CDT | Mesoscale Discussion | SPC | McCurtain | 85 min |
Nearby
Mesoscale Discussions in Texas, 2014Mesoscale Discussions in Oklahoma, 2014Every mesoscale discussion in 2014
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.