Alert archive / Oklahoma / Mesoscale Discussions in 2003
Mesoscale Discussion 1342
The Storm Prediction Center issued this mesoscale discussion at Jun 11, 2003, 10:15 PM CDT for 37 counties in Oklahoma. It was in force for 60 min.
The area
The outline as issued.
The facts
- Issued
- Jun 11, 2003, 10:15 PM CDT (03:15 UTC)
- Expired
- Jun 11, 2003, 11:15 PM CDT
- In force
- 60 min
- Issued by
- the Storm Prediction Center
All 37 counties
Alfalfa County, OK, Atoka County, OK, Blaine County, OK, Bryan County, OK, Caddo County, OK, Canadian County, OK, Carter County, OK, Cleveland County, OK, Coal County, OK, Comanche County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Grant County, OK, Harper County, OK, Hughes County, OK, Jefferson County, OK, Johnston County, OK, Kingfisher County, OK, Lincoln County, OK, Logan County, OK, Love County, OK, Major County, OK, Marshall County, OK, McClain County, OK, Murray County, OK, Noble County, OK, Oklahoma County, OK, Payne County, OK, Pontotoc County, OK, Pottawatomie County, OK, Seminole County, OK, Stephens County, OK, Woods County, OK, Woodward County, OK
The radar
The Norman radar (KTLX), 46 km from the middle of the area, began a volume at 03:17 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 00:00Z, 3.3 hours before the alert went out and 41 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
- 4834 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1070 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.5
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 |
|---|---|---|---|---|
| Jun 11, 7:25 PM CDT | Severe Thunderstorm Watch | SPC | Alfalfa, Blaine, Bryan, Caddo, Canadian, Carter and 28 more | 6 hr |
| Jun 11, 10:25 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Atoka, Cherokee, Choctaw, Craig, Creek and 23 more | 5 hr |
| Jun 12, 12:14 AM CDT | Mesoscale Discussion | SPC | Latimer, LeFlore, McCurtain, Pushmataha | 2 hr |
| Jun 12, 1:30 AM CDT | Mesoscale Discussion | SPC | Jefferson, Love, Tillman | 2 hr |
| Jun 12, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | Comanche, Cotton, Harmon, Jackson, Tillman | 6 hr |
| Jun 12, 5:59 PM CDT | Mesoscale Discussion | SPC | Cimarron | 91 min |
Nearby
Mesoscale Discussions in Oklahoma, 2003Every mesoscale discussion in 2003
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.