Alert archive / Oklahoma / Mesoscale Discussions in 2014
Mesoscale Discussion 245
The Storm Prediction Center issued this mesoscale discussion at Apr 1, 2014, 9:42 PM CDT for 13 counties in Oklahoma; 12 counties in Texas. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- Apr 1, 2014, 9:42 PM CDT (02:42 UTC)
- Expired
- Apr 1, 2014, 11:15 PM CDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
All 25 counties
Carter County, OK, Cleveland County, OK, Comanche County, OK, Cotton County, OK, Garvin County, OK, Grady County, OK, Jefferson County, OK, Love County, OK, McClain County, OK, Murray County, OK, Pontotoc County, OK, Stephens County, OK, Tillman County, OK, Archer County, TX, Baylor County, TX, Clay County, TX, Cooke County, TX, Jack County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, Wichita County, TX, Wilbarger County, TX, Wise County, TX, Young County, TX
The radar
The Altus AFB radar (KFDR), 91 km from the middle of the area, began a volume at 02:42 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, 2.7 hours before the alert went out and 145 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
- 21 J/kg
- Mixed-layer CIN
- -312 J/kg
- Mixed-layer LCL
- 1223 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 390 m²/s²
- 0-3 km storm-relative helicity
- 657 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.8
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 1, 8:18 PM CDT | Mesoscale Discussion | SPC | Caddo, Carter, Cleveland, Comanche, Cotton, Garvin and 10 more | 87 min |
| Apr 2, 2:19 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Blaine, Craig, Custer, Dewey, Garfield and 12 more | 116 min |
| Apr 2, 2:41 PM CDT | Tornado Watch | SPC | Alfalfa, Blaine, Craig, Custer, Dewey, Garfield and 10 more | 7 hr |
| Apr 2, 6:00 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Blaine, Craig, Custer, Dewey, Garfield and 10 more | 60 min |
| Apr 1, 7:25 PM CDT | Mesoscale Discussion | SPC | Throckmorton | 35 min |
Nearby
Mesoscale Discussions in Oklahoma, 2014Mesoscale Discussions in Texas, 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.