Alert archive / Illinois / Mesoscale Discussions in 2006
Mesoscale Discussion 13
The Storm Prediction Center issued this mesoscale discussion at Jan 2, 2006, 7:14 AM CST for 36 counties in Illinois; 14 counties in Indiana. It was in force for 31 min.
The area
The outline as issued.
The facts
- Issued
- Jan 2, 2006, 7:14 AM CST (13:14 UTC)
- Expired
- Jan 2, 2006, 7:45 AM CST
- In force
- 31 min
- Issued by
- the Storm Prediction Center
All 50 counties
Bond County, IL, Cass County, IL, Champaign County, IL, Christian County, IL, Clark County, IL, Clay County, IL, Clinton County, IL, Coles County, IL, Crawford County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Effingham County, IL, Fayette County, IL, Jasper County, IL, Lawrence County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Montgomery County, IL, Morgan County, IL, Moultrie County, IL, Piatt County, IL, Randolph County, IL, Richland County, IL, Saint Clair County, IL, Sangamon County, IL, Shelby County, IL, Vermilion County, IL, Washington County, IL, Clay County, IN, Daviess County, IN, Fountain County, IN, Greene County, IN, Knox County, IN, Montgomery County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Sullivan County, IN, Tippecanoe County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN
The radar
The Lincoln radar (KILX), 122 km from the middle of the area, began a volume at 13:14 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
Lincoln, IL (KILX), launched 12:00Z, 1.2 hours before the alert went out and 125 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
- 775 J/kg
- Mixed-layer CIN
- -112 J/kg
- Mixed-layer LCL
- 841 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 253 m²/s²
- 0-3 km storm-relative helicity
- 239 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 ACUS11 KWNS 021314 SWOMCD SPC MCD 021314 INZ000-ILZ000-MOZ000-021345- MESOSCALE DISCUSSION 0013 NWS STORM PREDICTION CENTER NORMAN OK 0714 AM CST MON JAN 02 2006 AREAS AFFECTED...MUCH OF CENTRAL IL INTO WEST CENTRAL IND CONCERNING...TORNADO WATCH 3... VALID 021314Z - 021345Z NEW WW MAY BE REQUIRED SOON ACROSS MUCH OF CENTRAL IL INTO WEST CENTRAL IND. AT 12Z...SURFACE MESO-ANALYSIS INDICATED AN AREA OF LOW PRESSURE OVER NERN MO WITH A COLD FRONT/DRY LINE EXTENDING SWD FROM FAR ERN MO INTO CENTRAL AR. MEANWHILE...THE WARM FRONT EXTENDING E THEN SE FROM THE SURFACE LOW HAS CONTINUED TO RETREAT SLOWLY NWD WITH MOISTURE ADVECTION IN THE WARM SECTOR AIDING IN AIR MASS DESTABILIZATION ACROSS MUCH OF CENTRAL/SRN IL. AIR MASS DESTABILIZATION IS EXPECTED TO CONTINUE TO DEVELOP EWD THIS MORNING INTO WRN IND. REGIONAL RADARS SHOWED A SQUALL LINE EXTENDING FROM TAZEWELL COUNTY IL SWD TO BOLLINGER COUNTY MO. STRONG AND DEEP LAYER ASCENT/SHEAR OVERSPREADING IL/IND ATOP THE INSTABILITY AXIS IS EXPECTED TO AID IN MAINTAINING ONGOING LINE OF STORMS THROUGH THE MORNING. ..PETERS.. 01/02/2006 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...IND...PAH...LOT...ILX...LSX... 37519013 38758989 39969044 40418997 40608863 40548692 38748658 38568846 38208941
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 1, 10:55 PM CST | Tornado Watch | SPC | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 4 more | 7 hr |
| Jan 2, 1:25 AM CST | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Clinton and 14 more | 95 min |
| Jan 2, 2:15 AM CST | Tornado Watch | SPC | Bond, Calhoun, Christian, Clay, Clinton, Edwards and 25 more | 7 hr |
| Jan 2, 3:01 AM CST | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 4 more | 59 min |
| Jan 2, 4:31 AM CST | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 47 more | 59 min |
| Jan 2, 5:38 AM CST | Tornado Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 6 hr |
| Jan 2, 7:35 AM CST | Tornado Watch | SPC | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 12 more | 4 hr |
| Jan 2, 7:57 AM CST | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 93 min |
| Jan 2, 10:21 AM CST | Mesoscale Discussion | SPC | Clark, Crawford, Edgar, Jasper, Lawrence, Richland and 1 more | 84 min |
| Jan 2, 11:30 AM CST | Mesoscale Discussion | SPC | Bartholomew, Brown, Clark, Clay, Crawford, Daviess and 32 more | 90 min |
| Jan 2, 11:59 AM CST | Severe Thunderstorm Watch | SPC | Bartholomew, Boone, Brown, Clark, Clay, Crawford and 41 more | 7 hr |
| Jan 2, 12:28 PM CST | Mesoscale Discussion | SPC | Adams, Allen, Blackford, Carroll, Cass, Clinton and 21 more | 92 min |
| Jan 2, 2:53 PM CST | Mesoscale Discussion | SPC | Bartholomew, Boone, Brown, Clark, Clay, Crawford and 39 more | 97 min |
Nearby
Mesoscale Discussions in Illinois, 2006Mesoscale Discussions in Indiana, 2006Every mesoscale discussion in 2006
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.