Alert archive / Iowa / Mesoscale Discussions in 2019
Mesoscale Discussion 88
The Storm Prediction Center issued this mesoscale discussion at Feb 7, 2019, 6:26 AM CST for 9 counties in Illinois; 15 counties in Iowa; 14 counties in Wisconsin. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 7, 2019, 6:26 AM CST (12:26 UTC)
- Expired
- Feb 7, 2019, 10:30 AM CST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 38 counties
Cedar County, IA, Clinton County, IA, Delaware County, IA, Des Moines County, IA, Dubuque County, IA, Henry County, IA, Iowa County, IA, Jackson County, IA, Johnson County, IA, Jones County, IA, Linn County, IA, Louisa County, IA, Muscatine County, IA, Scott County, IA, Washington County, IA, Carroll County, IL, Henry County, IL, Jo Daviess County, IL, Mercer County, IL, Ogle County, IL, Rock Island County, IL, Stephenson County, IL, Whiteside County, IL, Winnebago County, IL, Columbia County, WI, Dane County, WI, Dodge County, WI, Fond du Lac County, WI, Grant County, WI, Green County, WI, Green Lake County, WI, Iowa County, WI, Jefferson County, WI, Lafayette County, WI, Rock County, WI, Sauk County, WI, Washington County, WI, Waukesha County, WI
The radar
The Quad Cities radar (KDVN), 80 km from the middle of the area, began a volume at 12:27 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
Davenport, (KDVN), launched 12:00Z, 0.4 hours before the alert went out and 78 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
- 5 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 398 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 288 m²/s²
- 0-3 km storm-relative helicity
- 391 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 7, 7:11 AM CST | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 9 more | 64 min |
| Feb 7, 9:26 AM CST | Mesoscale Discussion | SPC | Alexander, Edwards, Gallatin, Hamilton, Hardin, Johnson and 7 more | 94 min |
| Feb 6, 9:33 PM CST | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cedar, Clarke, Davis and 28 more | 6 hr |
| Feb 7, 11:35 AM CST | Mesoscale Discussion | SPC | Brown, Calumet, Dodge, Door, Fond du Lac, Green Lake and 5 more | 3 hr |
Nearby
Mesoscale Discussions in Iowa, 2019Mesoscale Discussions in Wisconsin, 2019Mesoscale Discussions in Illinois, 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.