Alert archive / Oklahoma / Mesoscale Discussions in 2004
Mesoscale Discussion 976
The Storm Prediction Center issued this mesoscale discussion at May 29, 2004, 4:57 PM CDT for 9 counties in Kansas; 13 counties in Oklahoma. It was in force for 63 min.
The area
The outline as issued.
The facts
- Issued
- May 29, 2004, 4:57 PM CDT (21:57 UTC)
- Expired
- May 29, 2004, 6:00 PM CDT
- In force
- 63 min
- Issued by
- the Storm Prediction Center
All 22 counties
Barber County, KS, Harper County, KS, Harvey County, KS, Kingman County, KS, Pratt County, KS, Reno County, KS, Sedgwick County, KS, Stafford County, KS, Sumner County, KS, Alfalfa County, OK, Blaine County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Grant County, OK, Greer County, OK, Kingfisher County, OK, Kiowa County, OK, Major County, OK, Washita County, OK, Woods County, OK, Woodward County, OK
The radar
The Vance AFB radar (KVNX), 87 km from the middle of the area, began a volume at 21:58 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 nearest sounding before it
Lamont, OK (KLMN), launched 12:00Z, 10.0 hours before the alert went out and 126 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
- 1318 J/kg
- Mixed-layer CIN
- -99 J/kg
- Mixed-layer LCL
- 1006 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 265 m²/s²
- 0-3 km storm-relative helicity
- 292 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.6
The text
As transmitted, in the capitals the NWS used until 2016.
981 ACUS11 KWNS 292158 SWOMCD SPC MCD 292157 OKZ000-KSZ000-292300- MESOSCALE DISCUSSION 0976 NWS STORM PREDICTION CENTER NORMAN OK 0457 PM CDT SAT MAY 29 2004 AREAS AFFECTED...WRN OK...SRN/CNTRL KS CONCERNING...TORNADO WATCH 322... VALID 292157Z - 292300Z SCATTERED SUPERCELLS CONTINUE TO MATURE ALONG/EAST OF DRY LINE FROM BECKHAM COUNTY OK...NNEWD INTO STAFFORD COUNTY KS. THIS ACTIVITY SHOULD CONTINUE TO INTENSIFY AS CONVECTION ENCOUNTERS INCREASINGLY MOIST BOUNDARY LAYER DOWNSTREAM. TORNADO THREAT WILL INCREASE INTO SOUTH CENTRAL KS/NORTH CENTRAL OK OVER THE NEXT FEW HOURS. ..DARROW.. 05/29/2004 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...ICT...OUN...DDC... 35099971 37049910 38289868 38039722 36009761 34969864 34669937
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 1:02 PM CDT | Mesoscale Discussion | SPC | Clay, Cloud, Dickinson, Ellsworth, Graham, Jewell and 14 more | 118 min |
| May 29, 1:54 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Greeley, Logan, Rawlins, Sherman and 2 more | 3 hr |
| May 29, 2:55 PM CDT | Tornado Watch | SPC | Barber, Barton, Butler, Chase, Clark, Comanche and 20 more | 7 hr |
| May 29, 3:05 PM CDT | Tornado Watch | SPC | Brown, Clay, Cloud, Dickinson, Ellis, Ellsworth and 24 more | 7 hr |
| May 29, 3:55 PM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Decatur, Gove, Greeley, Lane, Logan and 8 more | 6 hr |
| May 29, 4:35 PM CDT | Tornado Watch | SPC | Anderson, Atchison, Doniphan, Douglas, Franklin, Jefferson and 5 more | 5 hr |
| May 29, 5:16 PM CDT | Mesoscale Discussion | SPC | Cloud, Jewell, Mitchell, Republic, Washington | 59 min |
| May 29, 5:53 PM CDT | Mesoscale Discussion | SPC | Decatur, Logan, Rawlins, Sheridan, Sherman, Thomas and 1 more | 67 min |
| May 29, 2:33 PM CDT | Mesoscale Discussion | SPC | Beckham, Blaine, Custer, Dewey, Ellis, Greer and 9 more | 117 min |
Nearby
Mesoscale Discussions in Oklahoma, 2004Mesoscale Discussions in Kansas, 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.