Alert archive / Kansas / Mesoscale Discussions in 2011
Mesoscale Discussion 919
The Storm Prediction Center issued this mesoscale discussion at May 24, 2011, 6:21 AM CDT for 31 counties in Kansas. It was in force for 54 min.
The area
The outline as issued.
The facts
- Issued
- May 24, 2011, 6:21 AM CDT (11:21 UTC)
- Expired
- May 24, 2011, 7:15 AM CDT
- In force
- 54 min
- Issued by
- the Storm Prediction Center
All 31 counties
Barton County, KS, Chase County, KS, Clay County, KS, Cloud County, KS, Dickinson County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Geary County, KS, Greenwood County, KS, Harvey County, KS, Jewell County, KS, Lincoln County, KS, Marion County, KS, McPherson County, KS, Mitchell County, KS, Morris County, KS, Osborne County, KS, Ottawa County, KS, Pawnee County, KS, Reno County, KS, Republic County, KS, Rice County, KS, Riley County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Smith County, KS, Stafford County, KS, Washington County, KS
The radar
The Grand Island radar (KUEX), 142 km from the middle of the area, began a volume at 11:24 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
Dodge City, (KDDC), launched 00:00Z, 11.4 hours before the alert went out and 192 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
- 379 J/kg
- Mixed-layer CIN
- -123 J/kg
- Mixed-layer LCL
- 2280 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 174 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
051 ACUS11 KWNS 241121 SWOMCD SPC MCD 241121 KSZ000-NEZ000-241215- MESOSCALE DISCUSSION 0919 NWS STORM PREDICTION CENTER NORMAN OK 0621 AM CDT TUE MAY 24 2011 AREAS AFFECTED...CENTRAL/NORTHERN KS AND EXTREME SOUTHERN NEB CONCERNING...SEVERE POTENTIAL...WATCH LIKELY VALID 241121Z - 241215Z IT APPEARS THAT A NEW SEVERE TSTM WATCH WILL BE NEEDED THIS MORNING MAINLY FOR PORTIONS OF CENTRAL/NORTHERN KS. AMID AMPLE ELEVATED INSTABILITY/STEEP LAPSE RATES ALOFT...A PERSISTENT/RELATIVELY WELL-ORGANIZED CLUSTERS OF TSTMS ONGOING ACROSS NORTHWEST/NORTH-CENTRAL KS SEEM LIKELY TO CONTINUE TO PROGRESS EAST-SOUTHEASTWARD AND POTENTIALLY GROW UPSCALE THROUGH THE MORNING ACROSS KS. SEVERE HAIL WILL BE THE INITIAL CONCERN...BUT DAMAGING WINDS MAY BECOME MORE OF A THREAT AS THE BOUNDARY LAYER HEATS AFTER SUNRISE. ..GUYER.. 05/24/2011 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...OAX...TOP...ICT...GID...DDC...GLD... LAT...LON 39349983 40089865 39979670 37869613 37709938 39349983
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 2:24 AM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Ellis, Gove, Graham, Hodgeman and 12 more | 96 min |
| May 24, 2:42 AM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Decatur, Ellis, Gove, Graham, Greeley and 15 more | 4 hr |
| May 24, 6:51 AM CDT | Severe Thunderstorm Watch | SPC | Barton, Brown, Butler, Chase, Clay, Cloud and 37 more | 5 hr |
| May 24, 9:18 AM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Atchison, Bourbon, Chase, Clay and 28 more | 87 min |
| May 24, 10:37 AM CDT | Mesoscale Discussion | SPC | Cheyenne, Rawlins, Sherman, Thomas | 83 min |
| May 24, 12:59 PM CDT | Mesoscale Discussion | SPC | Barton, Edwards, Ellis, Ellsworth, Finney, Ford and 26 more | 91 min |
| May 24, 1:27 PM CDT | Tornado Watch | SPC | Barber, Clark, Comanche, Edwards, Ellis, Finney and 30 more | 6 hr |
| May 24, 2:35 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Butler, Chase, Chautauqua, Coffey and 27 more | 85 min |
| May 24, 3:14 PM CDT | Tornado Watch | SPC | Allen, Barton, Butler, Chase, Chautauqua, Cowley and 20 more | 9 hr |
| May 24, 5:03 PM CDT | Mesoscale Discussion | SPC | Clay, Cloud, Dickinson, Geary, Jewell, Lincoln and 11 more | 57 min |
| May 24, 5:19 PM CDT | Tornado Watch | SPC | Anderson, Brown, Clay, Cloud, Coffey, Dickinson and 23 more | 7 hr |
Nearby
Mesoscale Discussions in Kansas, 2011Every mesoscale discussion in 2011
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.