Alert archive / Iowa / Mesoscale Discussions in 2019
Mesoscale Discussion 69
The Storm Prediction Center issued this mesoscale discussion at Feb 5, 2019, 1:37 PM CST for 13 counties in Illinois; 24 counties in Iowa; Green County, Lafayette County, Wisconsin. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 5, 2019, 1:37 PM CST (19:37 UTC)
- Expired
- Feb 5, 2019, 6:30 PM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 39 counties
Benton County, IA, Cedar County, IA, Clinton County, IA, Davis County, IA, Delaware County, IA, Des Moines County, IA, Dubuque County, IA, Henry County, IA, Iowa County, IA, Jackson County, IA, Jefferson County, IA, Johnson County, IA, Jones County, IA, Keokuk County, IA, Lee County, IA, Linn County, IA, Louisa County, IA, Mahaska County, IA, Muscatine County, IA, Poweshiek County, IA, Scott County, IA, Van Buren County, IA, Wapello County, IA, Washington County, IA, Bureau County, IL, Carroll County, IL, Henderson County, IL, Henry County, IL, Jo Daviess County, IL, Lee County, IL, Mercer County, IL, Ogle County, IL, Rock Island County, IL, Stephenson County, IL, Warren County, IL, Whiteside County, IL, Winnebago County, IL, Green County, WI, Lafayette County, WI
The radar
The Quad Cities radar (KDVN), 20 km from the middle of the area, began a volume at 19:36 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
Green Bay/Straub, WI (KGRB), launched 12:00Z, 7.6 hours before the alert went out and 377 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 809 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- -30 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 5, 5:56 PM CST | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Grundy, Kane and 11 more | 6 hr |
| Feb 5, 1:20 PM CST | Mesoscale Discussion | SPC | Emmet, Kossuth, Winnebago | 5 hr |
Nearby
Mesoscale Discussions in Iowa, 2019Mesoscale Discussions in Illinois, 2019Mesoscale Discussions in Wisconsin, 2019Every mesoscale discussion in 2019
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.