Alert archive / Illinois / Mesoscale Discussions in 2005
Mesoscale Discussion 1982
The Storm Prediction Center issued this mesoscale discussion at Aug 14, 2005, 11:28 AM CDT for 5 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 14, 2005, 11:28 AM CDT (16:28 UTC)
- Expired
- Aug 14, 2005, 1:30 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 77 counties
Baxter County, AR, Clay County, AR, Cleburne County, AR, Conway County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Lawrence County, AR, Marion County, AR, Randolph County, AR, Searcy County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, 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, Perry County, IL, Pope County, IL, Pulaski County, IL, Randolph County, IL, Richland 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, Ballard County, KY, Caldwell County, KY, Carlisle County, KY, Crittenden County, KY, Fulton County, KY, Henderson County, KY, Hickman County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, McCracken County, KY, Union County, KY, Webster County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Douglas County, MO, Howell County, MO, Iron County, MO, Madison County, MO, Mississippi County, MO, New Madrid County, MO, Oregon County, MO, Ozark County, MO, Perry County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Texas County, MO, Wayne County, MO
The radar
The Paducah radar (KPAH), 64 km from the middle of the area, began a volume at 16:28 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
Little Rock, AR (KLZK), launched 12:00Z, 4.5 hours before the alert went out and 267 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
- 960 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 1399 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- -8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 2:05 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Jackson, Union | 5 hr |
| Aug 14, 4:57 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more | 93 min |
| Aug 14, 5:25 PM CDT | Severe Thunderstorm Watch | SPC | Edwards, Franklin, Gallatin, Hamilton, Hardin, Jefferson and 7 more | 5 hr |
Nearby
Mesoscale Discussions in Illinois, 2005Mesoscale Discussions in Missouri, 2005Mesoscale Discussions in Arkansas, 2005Every mesoscale discussion in 2005
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.