Alert archive / Oklahoma / Mesoscale Discussions in 2015
Mesoscale Discussion 115
The Storm Prediction Center issued this mesoscale discussion at Mar 4, 2015, 2:12 PM CST for 5 counties in Arkansas; 17 counties in Oklahoma; 11 counties in Texas. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 4, 2015, 2:12 PM CST (20:12 UTC)
- Expired
- Mar 4, 2015, 6:15 PM CST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 33 counties
Crawford County, AR, Franklin County, AR, Logan County, AR, Scott County, AR, Sebastian County, AR, Atoka County, OK, Bryan County, OK, Carter County, OK, Choctaw County, OK, Coal County, OK, Haskell County, OK, Jefferson County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Love County, OK, Marshall County, OK, Murray County, OK, Pittsburg County, OK, Pontotoc County, OK, Pushmataha County, OK, Sequoyah County, OK, Archer County, TX, Clay County, TX, Collin County, TX, Cooke County, TX, Denton County, TX, Fannin County, TX, Grayson County, TX, Jack County, TX, Lamar County, TX, Montague County, TX, Wise County, TX
The radar
The Western Arkansas radar (KSRX), 160 km from the middle of the area, began a volume at 20:15 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 12:00Z, 8.2 hours before the alert went out and 177 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
- 679 m above ground
- 0-6 km bulk shear
- 89 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 479 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 4, 6:40 AM CST | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Clay, Crawford and 11 more | 5 hr |
| Mar 4, 1:34 PM CST | Mesoscale Discussion | SPC | Baxter, Boone, Carroll, Clay, Crawford, Franklin and 15 more | 4 hr |
| Mar 4, 10:00 AM CST | Mesoscale Discussion | SPC | Beckham, Blaine, Caddo, Canadian, Cleveland, Comanche and 15 more | 5 hr |
| Mar 4, 4:41 PM CST | Mesoscale Discussion | SPC | Archer, Baylor, Borden, Crosby, Dawson, Dickens and 17 more | 6 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2015Mesoscale Discussions in Texas, 2015Mesoscale Discussions in Arkansas, 2015Every mesoscale discussion in 2015
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.