Alert archive / Texas / Mesoscale Discussions in 2013
Mesoscale Discussion 253
The Storm Prediction Center issued this mesoscale discussion at Mar 8, 2013, 7:24 PM CST for Clark County, Meade County, Seward County, Kansas; 7 counties in Oklahoma; 33 counties in Texas. It was in force for 96 min.
The area
The outline as issued.
The facts
- Issued
- Mar 8, 2013, 7:24 PM CST (01:24 UTC)
- Expired
- Mar 8, 2013, 9:00 PM CST
- In force
- 96 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 43 counties
Clark County, KS, Meade County, KS, Seward County, KS, Beaver County, OK, Beckham County, OK, Ellis County, OK, Harmon County, OK, Harper County, OK, Roger Mills County, OK, Texas County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Gaines County, TX, Garza County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hemphill County, TX, Hockley County, TX, Hutchinson County, TX, Lamb County, TX, Lipscomb County, TX, Lubbock County, TX, Lynn County, TX, Motley County, TX, Ochiltree County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Swisher County, TX, Terry County, TX, Wheeler County, TX
The radar
The Amarillo radar (KAMA), 71 km from the middle of the area, began a volume at 01:26 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 1.4 hours before the alert went out and 335 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 552 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 300 m²/s²
- 0-3 km storm-relative helicity
- 432 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Mar 9, 12:00 PM CST | Mesoscale Discussion | SPC | Graham, Jewell, Norton, Osborne, Phillips, Rooks and 1 more | 90 min |
| Mar 8, 8:09 PM CST | Severe Thunderstorm Watch | SPC | Beaver, Beckham, Ellis, Greer, Harmon, Harper and 3 more | 7 hr |
| Mar 8, 11:33 PM CST | Mesoscale Discussion | SPC | Beaver, Beckham, Ellis, Greer, Harmon, Harper and 2 more | 87 min |
| Mar 9, 2:39 AM CST | Mesoscale Discussion | SPC | Beaver, Beckham, Dewey, Ellis, Greer, Harmon and 5 more | 66 min |
| Mar 9, 12:39 PM CST | Mesoscale Discussion | SPC | Carter, Comanche, Cotton, Garvin, Grady, Jefferson and 2 more | 2 hr |
| Mar 9, 1:46 PM CST | Severe Thunderstorm Watch | SPC | Atoka, Bryan, Carter, Coal, Garvin, Jefferson and 6 more | 9 hr |
| Mar 9, 3:34 PM CST | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Coal, Garvin, Hughes and 6 more | 86 min |
| Mar 9, 5:41 PM CST | Mesoscale Discussion | SPC | Atoka, Bryan, Coal, Haskell, Hughes, Johnston and 6 more | 94 min |
Nearby
Mesoscale Discussions in Texas, 2013Mesoscale Discussions in Oklahoma, 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.