Alert archive / Missouri / Mesoscale Discussions in 2004

Mesoscale Discussion 932

May 26, 20045 states

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.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2004-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1669 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2004-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 273 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

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.

IssuedProductOfficeCountiesLasted
May 26, 7:57 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 13 more63 min
May 26, 8:55 PM CDTTornado WatchSPCEdwards, Franklin, Gallatin, Hamilton, Hardin, Jackson and 16 more5 hr
May 26, 9:36 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 25 more54 min
May 27, 1:53 AM CDTMesoscale DiscussionSPCChristian, Clark, Clay, Coles, Crawford, Cumberland and 9 more3 hr
May 27, 11:10 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Christian, DeWitt and 25 more2 hr
May 27, 11:55 AM CDTSevere Thunderstorm WatchSPCAdams, Brown, Hancock, Henderson, McDonough, Pike and 3 more6 hr
May 27, 1:07 PM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, DeWitt, Douglas, Edgar and 12 more113 min
May 27, 1:30 PM CDTSevere Thunderstorm WatchSPCCass, Champaign, Christian, Coles, DeWitt, Douglas and 22 more7 hr
May 27, 1:52 PM CDTMesoscale DiscussionSPCAdams, Calhoun, Greene, Jersey, Macoupin, Pike and 1 more113 min
May 27, 2:25 PM CDTSevere Thunderstorm WatchSPCBond, Calhoun, Clinton, Fayette, Franklin, Greene and 12 more7 hr
May 27, 3:12 PM CDTMesoscale DiscussionSPCChampaign, Christian, Clark, Coles, Cumberland, DeWitt and 13 more2 hr
May 27, 3:37 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clay, Clinton, Edwards, Effingham and 22 more113 min
May 27, 4:00 PM CDTSevere Thunderstorm WatchSPCClark, Clay, Crawford, Cumberland, Edwards, Effingham and 7 more4 hr
May 27, 5:01 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clinton, Fayette, Greene, Jackson and 11 more89 min
May 27, 6:00 PM CDTMesoscale DiscussionSPCChampaign, DeWitt, Douglas, Edgar, Macon, Morgan and 4 more90 min
May 27, 6:35 PM CDTMesoscale DiscussionSPCOhio, Switzerland25 min
May 27, 6:55 PM CDTTornado WatchSPCJefferson, Ohio, Switzerland5 hr
May 26, 8:30 PM CDTTornado WatchSPCAllen, Anderson, Bourbon, Butler, Chautauqua, Coffey and 10 more6 hr
May 26, 11:40 PM CDTSevere Thunderstorm WatchSPCChase, Douglas, Franklin, Geary, Jefferson, Johnson and 9 more5 hr
May 27, 1:16 AM CDTMesoscale DiscussionSPCDouglas, Franklin, Jefferson, Johnson, Leavenworth, Lyon and 5 more119 min
May 27, 3:55 AM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Johnson, Leavenworth, Nemaha and 1 more95 min
May 27, 6:22 PM CDTMesoscale DiscussionSPCAnderson, Bath, Bourbon, Carroll, Clark, Fayette and 16 more53 min
May 26, 8:29 PM CDTMesoscale DiscussionSPCMcDonald91 min
May 27, 1:50 AM CDTTornado WatchSPCBarton, Camden, Cedar, Christian, Dade, Dallas and 15 more4 hr
May 27, 3:27 AM CDTMesoscale DiscussionSPCCedar, Christian, Dade, Dallas, Douglas, Greene and 12 more2 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.