Alert archive / Oklahoma / Mesoscale Discussions in 2005
Mesoscale Discussion 323
The Storm Prediction Center issued this mesoscale discussion at Mar 21, 2005, 3:14 PM CST for 4 counties in Kansas; 31 counties in Oklahoma. It was in force for 91 min.
The area
The outline as issued.
The facts
- Issued
- Mar 21, 2005, 3:14 PM CST (21:14 UTC)
- Expired
- Mar 21, 2005, 4:45 PM CST
- In force
- 91 min
- Issued by
- the Storm Prediction Center
All 35 counties
Barber County, KS, Clark County, KS, Comanche County, KS, Harper County, KS, Alfalfa County, OK, Atoka County, OK, Bryan County, OK, Canadian County, OK, Choctaw County, OK, Cleveland County, OK, Coal County, OK, Creek County, OK, Garfield County, OK, Garvin County, OK, Grant County, OK, Hughes County, OK, Johnston County, OK, Kay County, OK, Kingfisher County, OK, Lincoln County, OK, Logan County, OK, Marshall County, OK, McClain County, OK, Murray County, OK, Noble County, OK, Okfuskee County, OK, Oklahoma County, OK, Pawnee County, OK, Payne County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Seminole County, OK, Woods County, OK
The radar
The Vance AFB radar (KVNX), 72 km from the middle of the area, began a volume at 21:14 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, 9.2 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
- 512 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 434 m²/s²
- 0-3 km storm-relative helicity
- 584 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 21, 3:39 AM CST | Mesoscale Discussion | SPC | Atoka, Bryan, Caddo, Canadian, Carter, Cleveland and 23 more | 3 hr |
| Mar 21, 12:14 PM CST | Mesoscale Discussion | SPC | Alfalfa, Atoka, Bryan, Choctaw, Cleveland, Coal and 24 more | 31 min |
| Mar 21, 12:15 PM CST | Tornado Watch | SPC | Alfalfa, Atoka, Bryan, Choctaw, Cleveland, Coal and 22 more | 7 hr |
| Mar 21, 5:40 PM CST | Tornado Watch | SPC | Choctaw, McCurtain | 7 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2005Mesoscale Discussions in Kansas, 2005Every mesoscale discussion in 2005
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.