Alert archive / Oklahoma / Mesoscale Discussions in 2004
Mesoscale Discussion 234
The Storm Prediction Center issued this mesoscale discussion at Mar 27, 2004, 3:53 PM CST for Benton County, Crawford County, Washington County, Arkansas; McDonald County, Missouri; 12 counties in Oklahoma. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 27, 2004, 3:53 PM CST (21:53 UTC)
- Expired
- Mar 27, 2004, 6:00 PM CST
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
Counties Benton County, AR, Crawford County, AR, Washington County, AR, McDonald County, MO, Adair County, OK, Cherokee County, OK, Delaware County, OK, Haskell County, OK, Hughes County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Okmulgee County, OK, Pittsburg County, OK, Sequoyah County, OK, Wagoner County, OK
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 9.9 hours before the alert went out and 201 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
- 44 J/kg
- Mixed-layer CIN
- -218 J/kg
- Mixed-layer LCL
- 665 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 171 m²/s²
- 0-3 km storm-relative helicity
- 201 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 26, 6:00 PM CST | Mesoscale Discussion | SPC | Beaver, Cimarron, Texas | 2 hr |
| Mar 27, 1:55 AM CST | Mesoscale Discussion | SPC | Cimarron, Texas | 2 hr |
| Mar 27, 7:12 AM CST | Mesoscale Discussion | SPC | Alfalfa, Beckham, Blaine, Custer, Dewey, Ellis and 9 more | 93 min |
| Mar 27, 9:12 AM CST | Mesoscale Discussion | SPC | Harper, Woods | 3 hr |
| Mar 27, 9:58 AM CST | Mesoscale Discussion | SPC | Beckham, Ellis, Greer, Harmon, Roger Mills | 2 hr |
| Mar 27, 12:07 PM CST | Mesoscale Discussion | SPC | Alfalfa, Blaine, Canadian, Custer, Dewey, Ellis and 11 more | 113 min |
| Mar 27, 12:30 PM CST | Tornado Watch | SPC | Alfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 17 more | 6 hr |
| Mar 27, 1:58 PM CST | Mesoscale Discussion | SPC | Cotton, Tillman | 2 hr |
| Mar 27, 2:34 PM CST | Mesoscale Discussion | SPC | Alfalfa, Blaine, Custer, Dewey, Garfield, Grant and 7 more | 116 min |
| Mar 27, 5:08 PM CST | Mesoscale Discussion | SPC | Alfalfa, Blaine, Caddo, Canadian, Comanche, Custer and 14 more | 37 min |
| Mar 27, 5:30 PM CST | Tornado Watch | SPC | Alfalfa, Blaine, Caddo, Canadian, Comanche, Custer and 11 more | 6 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2004Mesoscale Discussions in Arkansas, 2004Mesoscale Discussions in Missouri, 2004Every mesoscale discussion in 2004
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.