Alert archive / Oklahoma / Mesoscale Discussions in 2004
Mesoscale Discussion 1552
The Storm Prediction Center issued this mesoscale discussion at Jul 6, 2004, 11:48 PM CDT for 12 counties in Oklahoma; 10 counties in Texas. It was in force for 87 min.
The area
The outline as issued.
The facts
- Issued
- Jul 6, 2004, 11:48 PM CDT (04:48 UTC)
- Expired
- Jul 7, 2004, 1:15 AM CDT
- In force
- 87 min
- Issued by
- the Storm Prediction Center
All 22 counties
Caddo County, OK, Comanche County, OK, Cotton County, OK, Grady County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Jefferson County, OK, Kiowa County, OK, Stephens County, OK, Tillman County, OK, Washita County, OK, Archer County, TX, Baylor County, TX, Childress County, TX, Clay County, TX, Foard County, TX, Hardeman County, TX, Haskell County, TX, Knox County, TX, Wichita County, TX, Wilbarger County, TX
The radar
The Altus AFB radar (KFDR), 9 km from the middle of the area, began a volume at 04:49 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, 4.8 hours before the alert went out and 171 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
- 3161 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 985 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 130 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 |
|---|---|---|---|---|
| Jul 7, 12:35 AM CDT | Severe Thunderstorm Watch | SPC | Carter, Coal, Comanche, Cotton, Garvin, Jackson and 8 more | 5 hr |
| Jul 7, 1:55 AM CDT | Mesoscale Discussion | SPC | Carter, Comanche, Cotton, Garvin, Harmon, Jackson and 7 more | 95 min |
| Jul 7, 3:10 AM CDT | Mesoscale Discussion | SPC | Adair, Cleveland, Coal, Creek, Haskell, Hughes and 12 more | 3 hr |
| Jul 6, 8:02 PM CDT | Mesoscale Discussion | SPC | Andrews, Armstrong, Bailey, Borden, Briscoe, Castro and 31 more | 88 min |
| Jul 6, 9:45 PM CDT | Severe Thunderstorm Watch | SPC | Bailey, Briscoe, Castro, Childress, Cochran, Cottle and 18 more | 6 hr |
| Jul 7, 2:31 PM CDT | Mesoscale Discussion | SPC | Anderson, Bell, Bosque, Brazos, Burleson, Burnet and 34 more | 119 min |
Nearby
Mesoscale Discussions in Oklahoma, 2004Mesoscale Discussions in Texas, 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; radar from the NEXRAD Level II archive.