Alert archive / Missouri / Mesoscale Discussions in 2003
Mesoscale Discussion 1513
The Storm Prediction Center issued this mesoscale discussion at Jun 25, 2003, 10:53 PM CDT for 6 counties in Arkansas; 17 counties in Missouri; Adair County, Cherokee County, Sequoyah County, Oklahoma. It was in force for 97 min.
The area
The outline as issued.
The facts
- Issued
- Jun 25, 2003, 10:53 PM CDT (03:53 UTC)
- Expired
- Jun 26, 2003, 12:30 AM CDT
- In force
- 97 min
- Issued by
- the Storm Prediction Center
All 26 counties
Benton County, AR, Carroll County, AR, Crawford County, AR, Franklin County, AR, Madison County, AR, Washington County, AR, Barry County, MO, Camden County, MO, Christian County, MO, Dallas County, MO, Douglas County, MO, Greene County, MO, Laclede County, MO, Lawrence County, MO, Maries County, MO, McDonald County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Stone County, MO, Taney County, MO, Webster County, MO, Wright County, MO, Adair County, OK, Cherokee County, OK, Sequoyah County, OK
The radar
The Springfield radar (KSGF), 71 km from the middle of the area, began a volume at 03:55 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 nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 3.9 hours before the alert went out and 25 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
- 2242 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 1157 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 6.4
The text
As transmitted, in the capitals the NWS used until 2016.
083 ACUS11 KWNS 260354 SWOMCD SPC MCD 260353 MOZ000-ARZ000-OKZ000-260530- MESOSCALE DISCUSSION 1513 NWS STORM PREDICTION CENTER NORMAN OK 1053 PM CDT WED JUN 25 2003 AREAS AFFECTED...SW-CNTRL MO/NW AR/ERN OK CONCERNING...SEVERE THUNDERSTORM WATCH 594... VALID 260353Z - 260530Z LARGE-SCALE CONVECTIVE LINE MOVING SEWD INTO SRN MO/NWRN AR/SERN OK WILL CONTINUE TO HAVE A MARGINAL THREAT FOR WIND DAMAGE OVER THE NEXT FEW HOURS. HOWEVER...SEVERE POTENTIAL IS EXPECTED TO REMAIN VERY ISOLATED AND A NEW WATCH E OF WW 594 IS NOT ANTICIPATED. LINEAR MCS IS CURRENTLY MOVING TOWARD AN INSTABILITY AXIS ORIENTED FROM ERN TX NEWD INTO CNTRL AR AND SERN MO. BOUNDARY LAYER MOISTURE AHEAD OF THE STORMS WAS HIGH WITH SFC DEWPOINTS IN THE UPPER 70S F RESULTING IN MLCAPE VALUES FROM 2500 TO 3500 J/KG. THIS WILL LIKELY FUEL THE MCS THROUGH THE OVERNIGHT HOURS. FORECAST SOUNDINGS SHOW WEAK DEEP LAYER SHEAR ACROSS THE REGION SUGGESTING STORMS WILL REMAIN MULTICELLULAR. HOWEVER...DIRECTIONAL SHEAR WAS PRESENT AND PRECIPITABLE WATER VALUES ARE HIGH WITH VALUES ABOVE 2.0 INCHES SUGGESTING A THREAT FOR ISOLATED DAMAGING WIND GUSTS IF COLD POOLS CAN BE GENERATED. ..BROYLES.. 06/26/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...LSX...LZK...SGF...TSA... 35799521 36329473 36909424 37419372 37879324 38229277 38209210 38119139 37059237 35849353 35319410 35299486 35399546
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 7:15 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Carroll, Crawford, Madison, Washington | 6 hr |
| Jun 25, 8:26 PM CDT | Mesoscale Discussion | SPC | Franklin, Saint Charles, Saint Louis, City of Saint Louis | 94 min |
Nearby
Mesoscale Discussions in Missouri, 2003Mesoscale Discussions in Arkansas, 2003Mesoscale Discussions in Oklahoma, 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.