Alert archive / Oklahoma / Mesoscale Discussions in 2004
Mesoscale Discussion 305
The Storm Prediction Center issued this mesoscale discussion at Apr 9, 2004, 1:51 PM CDT for 33 counties in Oklahoma. It was in force for 114 min.
The area
The outline as issued.
The facts
- Issued
- Apr 9, 2004, 1:51 PM CDT (18:51 UTC)
- Expired
- Apr 9, 2004, 3:45 PM CDT
- In force
- 114 min
- Issued by
- the Storm Prediction Center
All 33 counties
Atoka County, OK, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Cleveland County, OK, Coal County, OK, Comanche County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garvin County, OK, Grady County, OK, Greer County, OK, Hughes County, OK, Kingfisher County, OK, Kiowa County, OK, Latimer County, OK, Logan County, OK, Major County, OK, McClain County, OK, McIntosh County, OK, Murray County, OK, Okfuskee County, OK, Oklahoma County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Roger Mills County, OK, Seminole County, OK, Stephens County, OK, Washita County, OK, Woodward County, OK
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, 6.9 hours before the alert went out and 7 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
- 1639 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 143 m²/s²
- 0-3 km storm-relative helicity
- 167 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 |
|---|---|---|---|---|
| Apr 9, 1:00 PM CDT | Mesoscale Discussion | SPC | Adair, Cherokee, Craig, Creek, Delaware, Garfield and 21 more | 3 hr |
| Apr 9, 2:15 PM CDT | Severe Thunderstorm Watch | SPC | Atoka, Beckham, Blaine, Bryan, Caddo, Canadian and 27 more | 6 hr |
| Apr 9, 3:32 PM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Choctaw, Coal, Haskell and 15 more | 88 min |
| Apr 9, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | Haskell, Latimer, LeFlore, Muskogee, Pushmataha, Sequoyah | 5 hr |
| Apr 9, 4:20 PM CDT | Mesoscale Discussion | SPC | Cimarron | 115 min |
Nearby
Mesoscale Discussions in Oklahoma, 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.