Alert archive / Oklahoma / Mesoscale Discussions in 2017
Mesoscale Discussion 336
The Storm Prediction Center issued this mesoscale discussion at Mar 26, 2017, 5:13 PM CDT for 16 counties in Oklahoma; 13 counties in Texas. It was in force for 92 min.
The area
The outline as issued.
The facts
- Issued
- Mar 26, 2017, 5:13 PM CDT (22:13 UTC)
- Expired
- Mar 26, 2017, 6:45 PM CDT
- In force
- 92 min
- Issued by
- the Storm Prediction Center
All 29 counties
Atoka County, OK, Bryan County, OK, Carter County, OK, Coal County, OK, Garvin County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, Love County, OK, Marshall County, OK, McIntosh County, OK, Murray County, OK, Okfuskee County, OK, Pittsburg County, OK, Pontotoc County, OK, Seminole County, OK, Collin County, TX, Cooke County, TX, Dallas County, TX, Denton County, TX, Fannin County, TX, Grayson County, TX, Hood County, TX, Johnson County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, Tarrant County, TX, Wise County, TX
The radar
The Norman radar (KTLX), 129 km from the middle of the area, began a volume at 22:12 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 12:00Z, 10.2 hours before the alert went out and 124 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
- 1175 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 168 m²/s²
- 0-3 km storm-relative helicity
- 270 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Mar 26, 1:24 PM CDT | Mesoscale Discussion | SPC | Canadian, Cleveland, Garvin, Kingfisher, Lincoln, Logan and 5 more | 66 min |
| Mar 26, 2:49 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Atoka, Blaine, Bryan, Canadian, Carter and 34 more | 86 min |
| Mar 26, 4:02 PM CDT | Tornado Watch | SPC | Alfalfa, Atoka, Blaine, Bryan, Canadian, Carter and 36 more | 7 hr |
| Mar 26, 6:33 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Garfield, Grant, Kay, Major, Noble and 6 more | 87 min |
| Mar 26, 5:48 PM CDT | Severe Thunderstorm Watch | SPC | Bell, Bosque, Comanche, Coryell, Delta, Ellis and 21 more | 7 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2017Mesoscale Discussions in Texas, 2017Every mesoscale discussion in 2017
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.