Alert archive / Missouri / Mesoscale Discussions in 2003
Mesoscale Discussion 655
The Storm Prediction Center issued this mesoscale discussion at May 1, 2003, 12:00 AM CDT for 8 counties in Kansas; 30 counties in Missouri. It was in force for 90 min.
The area
The outline as issued.
The facts
- Issued
- May 1, 2003, 12:00 AM CDT (05:00 UTC)
- Expired
- May 1, 2003, 1:30 AM CDT
- In force
- 90 min
- Issued by
- the Storm Prediction Center
All 38 counties
Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Johnson County, KS, Leavenworth County, KS, Linn County, KS, Miami County, KS, Wyandotte County, KS, Barton County, MO, Bates County, MO, Benton County, MO, Camden County, MO, Carroll County, MO, Cass County, MO, Cedar County, MO, Chariton County, MO, Clay County, MO, Cooper County, MO, Dade County, MO, Dallas County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Laclede County, MO, Lafayette County, MO, Miller County, MO, Moniteau County, MO, Morgan County, MO, Pettis County, MO, Polk County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, St. Clair County, MO, Vernon County, MO
The radar
The Pleasant Hill radar (KEAX), 68 km from the middle of the area, began a volume at 05:01 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, 5.0 hours before the alert went out and 154 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
- 1639 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 1716 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 4.0
The text
As transmitted, in the capitals the NWS used until 2016.
023 ACUS11 KWNS 010500 SWOMCD SPC MCD 010500 MOZ000-KSZ000-OKZ000-010630- MESOSCALE DISCUSSION 0655 NWS STORM PREDICTION CENTER NORMAN OK 1200 AM CDT THU MAY 01 2003 AREAS AFFECTED...EXTREME SERN KS/W-CNTRL AND SWRN MO CONCERNING...SEVERE THUNDERSTORM WATCH 192... VALID 010500Z - 010630Z LARGE HAIL AND DAMAGING WIND THREAT WILL CONTINUE ACROSS MUCH OF WW0192 FOR THE NEXT SEVERAL HOURS. LATEST MESOANALYSIS SHOWS SURFACE LOW OVER N-CNTRL MO WITH A TRAILING COLD FRONT THAT EXTENDS SWWD THROUGH W-CNTRL MO AND INTO S-CNTRL KS. THE AIRMASS OVER ERN KS/WRN MO REMAINS MODERATELY UNSTABLE WITH MLCAPES OF 1000-2000 J/KG. REGIONAL RADAR DATA SHOW A SUPERCELL CURRENTLY MOVING INTO HENRY COUNTY MO WITH A TRAILING LINE OF TSTMS THAT EXTEND SWWD INTO NEOSHO COUNTY KS. THIS ACTIVITY IS CURRENTLY MOVING THROUGH THE AFOREMENTIONED INSTABILITY AXIS AND WILL CONTINUE TO POSE A THREAT OF LARGE HAIL AND DAMAGING WINDS GIVEN THE FAVORABLE DEEP-LAYER SHEAR EVIDENT ON LOCAL VWP/PROFILERS. TSTMS ARE EXPECTED TO CONTINUE OVERNIGHT ALONG THE COLD FRONT AS FORCING FOR LARGE-SCALE ASCENT ASSOCIATED WITH A SHORTWAVE TROUGH OVER THE TX/OK PHNDLS BEGINS TO OVERSPREAD THE WARM SECTOR. ..MEAD.. 05/01/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...LSX...SGF...EAX...TSA...TOP...ICT... 38099511 38719513 39059510 39219509 39309509 39339506 39509394 39689317 39799259 39889246 39799245 39329244 38669243 38169241 37789247 37629242 37509245 37469252 37309328 37209387 37089441 37009474 36959495 36899513 36989511 37479510
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 7:30 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Atchison, Butler, Chase, Chautauqua and 23 more | 6 hr |
| Apr 30, 7:31 PM CDT | Mesoscale Discussion | SPC | Doniphan, Johnson, Leavenworth, Wyandotte | 119 min |
| Apr 30, 9:22 PM CDT | Mesoscale Discussion | SPC | Bourbon, Crawford, Linn, Miami | 83 min |
| Apr 30, 9:30 PM CDT | Severe Thunderstorm Watch | SPC | Bourbon, Cherokee, Crawford, Johnson, Leavenworth, Linn and 2 more | 6 hr |
| Apr 30, 9:52 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Atchison, Butler, Chase, Chautauqua and 23 more | 83 min |
| Apr 30, 10:31 PM CDT | Mesoscale Discussion | SPC | Doniphan, Johnson, Leavenworth, Wyandotte | 89 min |
| Apr 30, 11:47 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Butler, Chase, Chautauqua, Coffey and 13 more | 118 min |
| May 1, 12:10 AM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 22 more | 5 hr |
| May 1, 2:27 AM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 10 more | 2 hr |
| May 1, 12:58 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Rawlins, Sherman, Wallace | 2 hr |
| Apr 30, 10:55 PM CDT | Severe Thunderstorm Watch | SPC | Audrain, Boone, Knox, Lewis, Marion, Monroe and 4 more | 5 hr |
| May 1, 1:19 AM CDT | Mesoscale Discussion | SPC | Audrain, Boone, Marion, Monroe, Pike, Ralls and 1 more | 86 min |
| May 1, 7:51 AM CDT | Mesoscale Discussion | SPC | Butler, Cape Girardeau, Carter, Mississippi, New Madrid, Oregon and 4 more | 114 min |
| May 1, 9:35 AM CDT | Severe Thunderstorm Watch | SPC | Bollinger, Butler, Cape Girardeau, Carter, Dunklin, Mississippi and 6 more | 5 hr |
Nearby
Mesoscale Discussions in Missouri, 2003Mesoscale Discussions in Kansas, 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.