Alert archive / Missouri / Mesoscale Discussions in 2004
Mesoscale Discussion 932
The Storm Prediction Center issued this mesoscale discussion at May 26, 2004, 11:14 PM CDT for 5 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 26, 2004, 11:14 PM CDT (04:14 UTC)
- Expired
- May 27, 2004, 1:15 AM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 115 counties
Alexander County, IL, Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Jefferson County, IL, Johnson County, IL, Massac County, IL, Monroe County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Randolph County, IL, Saint Clair County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Gibson County, IN, Pike County, IN, Posey County, IN, Vanderburgh County, IN, Warrick County, IN, Allen County, KS, Anderson County, KS, Bourbon County, KS, Butler County, KS, Chase County, KS, Coffey County, KS, Cowley County, KS, Crawford County, KS, Douglas County, KS, Elk County, KS, Franklin County, KS, Greenwood County, KS, Johnson County, KS, Leavenworth County, KS, Linn County, KS, Lyon County, KS, Miami County, KS, Neosho County, KS, Osage County, KS, Wilson County, KS, Woodson County, KS, Wyandotte County, KS, Caldwell County, KY, Crittenden County, KY, Daviess County, KY, Henderson County, KY, Hopkins County, KY, Livingston County, KY, McLean County, KY, Muhlenberg County, KY, Union County, KY, Webster County, KY, Barton County, MO, Bates County, MO, Benton County, MO, Bollinger County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Cape Girardeau County, MO, Cass County, MO, Cedar County, MO, Clay County, MO, Cole County, MO, Cooper County, MO, Crawford County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Franklin County, MO, Gasconade County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Iron County, MO, Jackson County, MO, Jasper County, MO, Jefferson County, MO, Johnson County, MO, Laclede County, MO, Lafayette County, MO, Madison County, MO, Maries County, MO, Miller County, MO, Moniteau County, MO, Montgomery County, MO, Morgan County, MO, Osage County, MO, Perry County, MO, Pettis County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Ray County, MO, Reynolds County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Saline County, MO, St. Clair County, MO, Texas County, MO, Vernon County, MO, Warren County, MO, Washington County, MO, Webster County, MO, Wright County, MO
The radar
The Springfield radar (KSGF), 116 km from the middle of the area, began a volume at 04:16 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
Springfield, MO (KSGF), launched 00:00Z, 4.2 hours before the alert went out and 165 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
- 1669 J/kg
- Mixed-layer CIN
- -73 J/kg
- Mixed-layer LCL
- 828 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 273 m²/s²
- 0-3 km storm-relative helicity
- 351 m²/s²
- Significant tornado parameter
- 2.7
- Supercell composite
- 12.9
The text
As transmitted, in the capitals the NWS used until 2016.
437 ACUS11 KWNS 270414 SWOMCD SPC MCD 270414 KYZ000-INZ000-ILZ000-MOZ000-KSZ000-270615- MESOSCALE DISCUSSION 0932 NWS STORM PREDICTION CENTER NORMAN OK 1114 PM CDT WED MAY 26 2004 AREAS AFFECTED...SERN KS...SRN MO...SRN IL...W KY CONCERNING...TORNADO WATCH 304...305... VALID 270414Z - 270615Z A RISK OF TORNADOES CONTINUES ACROSS THE WW/S. MESOANALYSIS SHOWS OUTFLOW/FRONT SITUATED FROM SRN IL WWD ACROSS SRN MO TO NEAR EMPORIA KS. PROFILERS/VWP SHOWS THAT A SWLY LLJ HAS INCREASED AND IS ORIENTED FROM WRN OK INTO SERN KS AND SWRN MO NEARLY PERPENDICULAR TO THE BOUNDARY. THIS WARM ADVECTION DERIVED LIFT WILL CONTINUE TO BE FAVORABLE FOR TSTMS DEVELOPING UPSTREAM ACROSS SERN KS INTO MO...GRADUALLY SPREADING EWD OVERNIGHT INTO THE LOWER OH VLY. A LONG-LIVED TORNADIC SUPERCELL HAS BEEN TRACKING ALONG THE BOUNDARY ACROSS SWRN MO THIS EVENING. IF IT HOLDS TOGETHER...DOWNSTREAM ENVIRONMENT IS RICH WITH LOW-LEVEL HELICITY THROUGH THE KTBN AREA TO SRN IL/W KY. THUS...ANY STORM THAT DEVELOPS IN THAT CORRIDOR WILL HAVE THE POTENTIAL FOR TORNADOES. OTHERWISE...TSTMS DEVELOPING UPSTREAM ACROSS SERN KS ARE LIKELY ELEVATED AND WILL DEVELOP/MOVE ENEWD INTO WCNTRL/SWRN MO THE NEXT SEVERAL HOURS. RUC SOUNDINGS SUGGEST MUCAPES OF 2500-3000 J/KG AND SUFFICIENT CLOUD LAYER SHEAR TO SUPPORT SUPERCELLS WITH LARGE HAIL. IF TSTMS CONTINUE TO SPREAD TOWARD THE KANSAS CITY AREA...A WW MAY BE REQUIRED NORTH OF THE TORNADO WATCH 304. ALL ACTIVITY WILL GRADUALLY MOVE EWD INTO THE LOWER OH VLY LATER TONIGHT WITH THE THREAT OF DAMAGING WINDS/HAIL AND PERHAPS A TORNADO OR TWO FROM SERN MO/SRN IL INTO W KY. ..RACY.. 05/27/2004 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...LMK...IND...PAH...LSX...SGF...EAX...TOP...ICT... 37229703 38209706 39329490 39349256 38548998 38438705 37138708
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 7:57 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 13 more | 63 min |
| May 26, 8:55 PM CDT | Tornado Watch | SPC | Edwards, Franklin, Gallatin, Hamilton, Hardin, Jackson and 16 more | 5 hr |
| May 26, 9:36 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 25 more | 54 min |
| May 27, 1:53 AM CDT | Mesoscale Discussion | SPC | Christian, Clark, Clay, Coles, Crawford, Cumberland and 9 more | 3 hr |
| May 27, 11:10 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Christian, DeWitt and 25 more | 2 hr |
| May 27, 11:55 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Hancock, Henderson, McDonough, Pike and 3 more | 6 hr |
| May 27, 1:07 PM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Coles, DeWitt, Douglas, Edgar and 12 more | 113 min |
| May 27, 1:30 PM CDT | Severe Thunderstorm Watch | SPC | Cass, Champaign, Christian, Coles, DeWitt, Douglas and 22 more | 7 hr |
| May 27, 1:52 PM CDT | Mesoscale Discussion | SPC | Adams, Calhoun, Greene, Jersey, Macoupin, Pike and 1 more | 113 min |
| May 27, 2:25 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Clinton, Fayette, Franklin, Greene and 12 more | 7 hr |
| May 27, 3:12 PM CDT | Mesoscale Discussion | SPC | Champaign, Christian, Clark, Coles, Cumberland, DeWitt and 13 more | 2 hr |
| May 27, 3:37 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Clay, Clinton, Edwards, Effingham and 22 more | 113 min |
| May 27, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Clay, Crawford, Cumberland, Edwards, Effingham and 7 more | 4 hr |
| May 27, 5:01 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Clinton, Fayette, Greene, Jackson and 11 more | 89 min |
| May 27, 6:00 PM CDT | Mesoscale Discussion | SPC | Champaign, DeWitt, Douglas, Edgar, Macon, Morgan and 4 more | 90 min |
| May 27, 6:35 PM CDT | Mesoscale Discussion | SPC | Ohio, Switzerland | 25 min |
| May 27, 6:55 PM CDT | Tornado Watch | SPC | Jefferson, Ohio, Switzerland | 5 hr |
| May 26, 8:30 PM CDT | Tornado Watch | SPC | Allen, Anderson, Bourbon, Butler, Chautauqua, Coffey and 10 more | 6 hr |
| May 26, 11:40 PM CDT | Severe Thunderstorm Watch | SPC | Chase, Douglas, Franklin, Geary, Jefferson, Johnson and 9 more | 5 hr |
| May 27, 1:16 AM CDT | Mesoscale Discussion | SPC | Douglas, Franklin, Jefferson, Johnson, Leavenworth, Lyon and 5 more | 119 min |
| May 27, 3:55 AM CDT | Mesoscale Discussion | SPC | Atchison, Brown, Doniphan, Johnson, Leavenworth, Nemaha and 1 more | 95 min |
| May 27, 6:22 PM CDT | Mesoscale Discussion | SPC | Anderson, Bath, Bourbon, Carroll, Clark, Fayette and 16 more | 53 min |
| May 26, 8:29 PM CDT | Mesoscale Discussion | SPC | McDonald | 91 min |
| May 27, 1:50 AM CDT | Tornado Watch | SPC | Barton, Camden, Cedar, Christian, Dade, Dallas and 15 more | 4 hr |
| May 27, 3:27 AM CDT | Mesoscale Discussion | SPC | Cedar, Christian, Dade, Dallas, Douglas, Greene and 12 more | 2 hr |
Nearby
Mesoscale Discussions in Missouri, 2004Mesoscale Discussions in Illinois, 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.