Alert archive / Kansas / Mesoscale Discussions in 2003
Mesoscale Discussion 852
The Storm Prediction Center issued this mesoscale discussion at May 8, 2003, 12:10 PM MDT for 4 counties in Colorado; 8 counties in Kansas; 7 counties in Nebraska. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 8, 2003, 12:10 PM MDT (18:10 UTC)
- Expired
- May 8, 2003, 2:15 PM MDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
Counties Kit Carson County, CO, Phillips County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Graham County, KS, Norton County, KS, Rawlins County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Chase County, NE, Dundy County, NE, Frontier County, NE, Furnas County, NE, Hayes County, NE, Hitchcock County, NE, Red Willow County, NE
The radar
The Goodland radar (KGLD), 45 km from the middle of the area, began a volume at 18:13 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
Denver, CO (KDNR), launched 12:00Z, 6.2 hours before the alert went out and 137 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
- 13 J/kg
- Mixed-layer CIN
- -152 J/kg
- Mixed-layer LCL
- 830 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
688 ACUS11 KWNS 081810 SWOMCD SPC MCD 081810 KSZ000-NEZ000-COZ000-082015- MESOSCALE DISCUSSION 0852 NWS STORM PREDICTION CENTER NORMAN OK 0110 PM CDT THU MAY 08 2003 AREAS AFFECTED...NERN CO...NWRN KS AND SWRN NEB CONCERNING...SEVERE THUNDERSTORM POTENTIAL VALID 081810Z - 082015Z ISOLATED SEVERE THUNDERSTORMS CAPABLE OF LARGE HAIL WILL CONTINUE TO DEVELOP FROM NERN CO INTO FAR NWRN KS AND SWRN NEB THROUGH 08/21Z. WEAK TORNADOES WILL ALSO BE POSSIBLE AHEAD OF THE SFC LOW AND ALONG THE E-W ORIENTED WARM FRONT WHERE LOW LEVEL SHEAR WILL BE MAXIMIZED. A WW WILL BE NEEDED SHORTLY. 17Z SFC ANALYSIS INDICATES THAT LOWER 50S DEWPOINTS HAVE REMAINED OVER FAR NWRN KS AND NERN CO AHEAD OF AN OCCLUDED LOW CENTERED TO THE NORTHEAST OF DEN. CLEARANCE OF CLOUDS EAST OF THIS LOW OVER NERN CO AND FAR NWRN KS/SWRN NEB WILL SUPPORT CONTINUED DESTABILIZATION OVER THE NEXT SEVERAL HOURS. MODIFIED 12Z BOU SOUNDING INDICATED AROUND 1000 MLCAPE WITH OBSERVED SFC TEMPERATURES IN THE MID/UPPER 60S AND DEWPOINTS INTO THE LOWER TO MID 50S OVER FAR NERN CO/NWRN KS AND EXTREME SWRN NEB. LOW LEVEL CONVERGENCE AND ENHANCED LOW LEVEL VORTICITY AHEAD OF THE SFC LOW WILL AID IN THE POTENTIAL FOR ISOLATED TORNADOES. ..CROSBIE.. 05/08/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...GID...LBF...GLD...BOU... 39060216 39300363 40710323 40910072 40139964 39189985
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 6:01 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Kiowa, Kit Carson, Lincoln, Phillips, Sedgwick and 2 more | 89 min |
| May 8, 12:30 PM MDT | Tornado Watch | SPC | Kit Carson, Lincoln, Logan, Morgan, Phillips, Sedgwick and 2 more | 6 hr |
| May 8, 2:35 PM MDT | Mesoscale Discussion | SPC | Phillips, Sedgwick, Yuma | 115 min |
| May 8, 12:18 AM MDT | Mesoscale Discussion | SPC | Allen, Barber, Barton, Bourbon, Butler, Chautauqua and 21 more | 3 hr |
| May 8, 12:55 AM MDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Barber, Barton, Bourbon, Butler and 44 more | 5 hr |
| May 8, 2:51 AM MDT | Mesoscale Discussion | SPC | Atchison, Barber, Barton, Bourbon, Brown, Butler and 50 more | 3 hr |
| May 8, 3:15 AM MDT | Severe Thunderstorm Watch | SPC | Atchison, Brown, Clay, Cloud, Doniphan, Douglas and 19 more | 7 hr |
| May 8, 6:50 AM MDT | Mesoscale Discussion | SPC | Atchison, Brown, Doniphan, Jackson, Jefferson, Leavenworth and 6 more | 85 min |
| May 8, 6:55 AM MDT | Mesoscale Discussion | SPC | Atchison, Brown, Doniphan, Jackson, Jefferson, Leavenworth and 6 more | 95 min |
| May 8, 11:49 AM MDT | Mesoscale Discussion | SPC | Harper, Sumner | 3 hr |
| May 8, 12:07 PM MDT | Mesoscale Discussion | SPC | Barton, Clay, Cloud, Dickinson, Ellis, Ellsworth and 16 more | 2 hr |
| May 8, 12:35 PM MDT | Tornado Watch | SPC | Butler, Chautauqua, Cowley, Elk, Greenwood, Harper and 5 more | 7 hr |
| May 8, 12:50 PM MDT | Tornado Watch | SPC | Anderson, Atchison, Brown, Chase, Clay, Cloud and 31 more | 7 hr |
| May 8, 2:26 PM MDT | Mesoscale Discussion | SPC | Brown, Clay, Cloud, Dickinson, Ellsworth, Geary and 22 more | 2 hr |
| May 8, 2:34 PM MDT | Mesoscale Discussion | SPC | Butler, Chase, Chautauqua, Coffey, Cowley, Elk and 10 more | 116 min |
| May 8, 3:16 PM MDT | Mesoscale Discussion | SPC | Allen, Anderson, Atchison, Bourbon, Cherokee, Crawford and 11 more | 29 min |
| May 8, 3:40 PM MDT | Tornado Watch | SPC | Allen, Anderson, Atchison, Bourbon, Cherokee, Crawford and 13 more | 6 hr |
| May 8, 5:38 PM MDT | Mesoscale Discussion | SPC | Allen, Anderson, Atchison, Bourbon, Brown, Butler and 46 more | 2 hr |
| May 8, 3:18 PM MDT | Mesoscale Discussion | SPC | Antelope, Blaine, Boone, Brown, Burt, Butler and 42 more | 57 min |
| May 8, 4:30 PM MDT | Severe Thunderstorm Watch | SPC | Burt, Butler, Cass, Colfax, Cuming, Dodge and 13 more | 6 hr |
Nearby
Mesoscale Discussions in Kansas, 2003Mesoscale Discussions in Nebraska, 2003Mesoscale Discussions in Colorado, 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.